Carrier 33ZCFANTRM User Manual

Single Duct Air Terminal Zone Controller

VAV Fan Terminal Zone Controller

Secondary Terminal Zone Controller

Installation, Start-Up and

Configuration Instructions

Part Numbers 33ZCFANTRM, 33ZCVAVTRM, 33ZCSECTRM

Service Configuration Selection Screen. . . . . . . . . 37

CONTENTS

• AIRFLOW SERVICE CONFIGURATION SCREEN

• TERMINAL SERVICE CONFIGURATION SCREEN

• OPTIONS SERVICE CONFIGURATION SCREEN

• SECONDARY DAMPER SERVICE

Page

SAFETY CONSIDERATIONS. . . . . . . . . . . . . . . . . . . . . . 1

GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Zone Controller Hardware . . . . . . . . . . . . . . . . . . . . . . . . 2

Field-Supplied Hardware . . . . . . . . . . . . . . . . . . . . . . . . . 2

• SPACE TEMPERATURE SENSOR

• PRIMARY AIR TEMPERATURE SENSOR

• SUPPLY AIR TEMPERATURE (SAT) SENSOR

• RELATIVE HUMIDITY SENSOR

• INDOOR AIR QUALITY (CO₂) SENSOR

Mount Zone Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

• LOCATION

CONFIGURATION SCREEN

Maintenance Table Menu Screen . . . . . . . . . . . . . . . . 43

• LINKAGE MAINTENANCE TABLE

• OCCUPANCY MAINTENANCE TABLE

• ZONE AIR BALANCE/COMMISSIONING TABLE

• ZONE MAINTENANCE TABLE

SAFETY CONSIDERATIONS

SAFETY NOTE

Air-handling equipment will provide safe and reliable

service when operated within design specifications. The

equipment should be operated and serviced only by

authorized personnel who have a thorough knowledge

of system operation, safety devices and emergency

procedures.

• MOUNTING

Connect the Power Transformer. . . . . . . . . . . . . . . . . . 7

Connect Airflow Pickups . . . . . . . . . . . . . . . . . . . . . . . . . 7

Install Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

• SPACE TEMPERATURE SENSOR INSTALLATION

• PRIMARY AIR TEMPERATURE SENSOR

INSTALLATION

Good judgement should be used in applying any manu-

facturer’s instructions to avoid injury to personnel or dam-

age to equipment and property.

• SUPPLY AIR TEMPERATURE (SAT) SENSOR

INSTALLATION

• INDOOR AIR QUALITY SENSOR INSTALLATION

• HUMIDITY SENSOR (WALL-MOUNTED)

INSTALLATION

Remote Occupancy Contact. . . . . . . . . . . . . . . . . . . . . 26

Connect the Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Modulating Baseboard Hydronic Heating. . . . . . . . 26

Connect the CCN Communication Bus . . . . . . . . . . 26

• COMMUNICATION BUS WIRE SPECIFICATIONS

• CONNECTION TO THE COMMUNICATION BUS

Disconnect all power to the unit before performing mainte-

nance or service. Unit may automatically start if power is

not disconnected. Electrical shock and personal injury

could result.

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29-31

Perform System Check-Out . . . . . . . . . . . . . . . . . . . . . 29

Network Addressing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Initial Operation and Test. . . . . . . . . . . . . . . . . . . . . . . . 30

Airflow Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Fan and Heat Configuration and Test. . . . . . . . . . . . 30

If it is necessary to remove and dispose of mercury contac-

tors in electric heat section, follow all local, state, and fed-

eral laws regarding disposal of equipment containing

hazardous materials.

CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31-50

Points Display Screen. . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Modify Controller Configuration. . . . . . . . . . . . . . . . . 32

• ALARM LIMIT CONFIGURATION SCREEN

• CONTROLLER IDENTIFICATION SCREEN

• HOLIDAY CONFIGURATION SCREENS

• LINKAGE COORDINATOR CONFIGURATION

SCREEN

• OCCUPANCY CONFIGURATION SCREEN

• SET POINT SCREEN

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

PC 111 Catalog No. 533-355 Printed in U.S.A. Form 33ZC-1SI Pg 1 303 11-99 Replaces: New

Book

Tab 11a 13a

CCN

SYSTEM

MONITORING

SOFTWARE

CCN PRIMARY BUS (BUS 0)

CC6400 OR CSAM

EQUIPPED

FULLY

COMPATIBLE

AIR HANDLER

NON-CCN

AIR HANDLER

BRIDGE

(RECOMMENDED)

COMFORTID

EQUIPPED

AIR TERMINAL

(1 OF UP TO 128)

ADDRESSED

SEQUENTIALLY

SECONDARY BUS

DATA

COLLECTION

OPTION

LEGEND

CCN — Carrier Comfort Network

CSAM — Comfort System AirManager

Fig. 1 — Typical Carrier Linkage System

DAMPER

SHAFT

ACTUATOR

CLAMP

ASSEMBLY

LOW PRESSURE

TUBING ROUTING

+24V

SPT

GND

SAT

RH/IAQ

GND

FAN AC

FAN

MECHANICAL

STOP

SECFLOW

+10V

24VAC

N/A

HEAT3

T56

GROMMET

DMPPOS

GND

PAT

TEST

REMOTE

GND

HF23BJ042

Made in Switzerland

by Belimo Automation

ZONE Controller

35 in-lb (4 Nm)

80...110s

COM

COW

LR 92800

NEMA 2

3art Number: 33ZCFANTRM

S/N:

Bus#:

LISTED

94D5

TENP IND

Element#:

Unit#:

ANTI-

REG. EQUIP.

ROTATION

TAB

Class 2 Supply

24VAC/DC

50/60 Hz

3VA 2W

COM

WIP

blu

ACTUATOR

RELEASE

BUTTON

yel

ora

red wht

blk

NOTE: Actuator clamp accepts dampers

shafts with the following characteristics:

Round — ¹/₄-in. to ⁵/₈-in.

(6 to 16 mm)

HIGH

PRESSURE

TUBING

Square — ¹/₄-in. to ⁷/₁₆-in.

(6 to 11 mm)

ROUTING

Damper shaft must be a minimum of 1.5-in.

(38 mm) long.

→

Fig. 2 — Zone Controller Physical Details (33ZCFANTRM Shown)

R E L AT I V E H U M I D I T Y S E N S O R — The

33AMSENRHS000 relative humidity sensor is required for

zone humidity control (dehumidification).

3. Press the release button on the actuator and rotate the

clamp in the same direction that was required to close

the damper in Step 2.

NOTE: The relative humidity sensor and CO₂sensor cannot

be used on the same zone controller.

4. Press the release button on the actuator and rotate the

actuator back one position graduation. Release the but-

ton and lock the actuator in this position.

5. Mount the zone controller to the terminal by sliding

the damper shaft through the actuator clamp assembly.

Secure the zone controller to the duct by installing

the screw provided through the grommet in the anti-

rotation tab. Be sure the floating grommet is in the

center of the slot. Failure to center the grommet may

cause the actuator to stick or bind.

INDOOR AIR QUALITY (CO₂) SENSOR — An indoor air

quality sensor is required for optional demand control ventila-

tion. The CGCDXSEN002A00 CO₂Sensor is an indoor,

wall mounted sensor with an LED display. The

CGCDXSEN003A00 CO₂Sensor is an indoor, wall mounted

sensor without display.

NOTE: The relative humidity sensor and CO₂sensor cannot

be used on the same zone controller.

6. Tighten the actuator clamp assembly to the damper

shaft. Secure by tightening the two 10-mm nuts.

Mount Zone Controller

LOCATION — The zone controller must be mounted on the

air terminal’s damper actuator shaft. For service access, there

should be at least 12 in. of clearance between the front of the

zone controller and adjacent surfaces. Refer to Fig. 6.

MOUNTING — Perform the following steps to mount the

zone controller:

7. If the damper has less than 90 degrees of travel

between the fully open and fully closed positions, then

a mechanical stop must be set on the actuator. The

mechanical stop prevents the damper from opening

past the maximum damper position. To set the

mechanical stop, perform the following procedure:

1. Visually inspect the damper and determine the direc-

tion in which the damper shaft moves to open the

damper — clockwise (CW) or counterclockwise

(CCW). Refer to Fig. 7.

a. Press the actuator release button and rotate the

damper to the fully open position.

b. Using a Phillips screwdriver, loosen the appropri-

ate stop clamp screw.

c. Move the stop clamp screw so that it contacts the

edge of the cam on the actuator. Secure the stop

clamp screw in this position by tightening the

screw.

If the damper rotates CCW to open, it does not require

any configuration changes.

If the damper rotates CW to open, then the damper

actuator logic must be reversed. This is done in the

software when performing system start-up and damper

calibration test. Do not attempt to change damper rota-

tion by changing wiring. This will upset the damper

position feedback potentiometer readings.

8. Verify that the damper opens and closes. Press the

actuator release button and rotate the damper. Verify

that the damper does not rotate past the fully open

position. Release the button and lock the damper in the

fully open position.

2. Rotate the damper shaft to the fully closed position.

Note direction of rotation.

801

—

+24V

SPT

GND

SAT

RH/IAQ

GND

FAN AC

FAN

SECFLOW

+10V

24VAC

N/A

HEAT3

T56

DMPPOS

GND

PAT

TEST

REMOTE

GND

HF23BJ042

Made in Switzerland

by Belimo Automation

ZONE Controller

35 in-lb (4 Nm)

80...110s

COM

COW

LR 92800

NEMA 2

Part Number: 33ZCFANTRM

S/N:

Bus#:

LISTED

94D5

TENP IND

Element#:

Unit#:

REG. EQUIP.

Class 2 Supply

24VAC/DC

50/60 Hz

3VA 2W

COM

WIP

blu

yel

red wht

ora

blk

→

Fig. 3 — VAV Fan Terminal Zone Controller

+24V

RH/IAQ

GND

SPT

GND

SAT

T56

SECFLOW

+10V

DMPPOS

GND

PAT

TEST

REMOTE

GND

HF23BJ042

Made in Switzerland

by Belimo Automation

ZONE Controller

35 in-lb (4 Nm)

80...110s

LR 92800

NEMA 2

Part Number: 33ZCVAVTRM

S/N:

Bus#:

LISTED

94D5

TENP IND

Element#:

Unit#:

REG. EQUIP.

Class 2 Supply

24VAC/DC

50/60 Hz

3VA 2W

COM

WIP

blu

yel

red wht

ora

blk

→

Fig. 4 — Single Duct Air Terminal Zone Controller

801

GND

OUT

+10V

FLOW

TPUT

COM

CCW

MMON

HF23BJ042

ZONE Controller

Made in Switzerland

by Belimo Automation

35 in-lb (4 Nm)

80...110s

LR 92800

Part Number: 33ZCSECTRM

S/N:

NEMA2

LISTED

94D5

_{TEMP. IND. &}U

REG. EQUIP.

Unit#:

Class 2 Supply

24VAC/DC

50/60Hz

3VA

COM

WIP

blk

blu ora

red wht

yel

Fig. 5 — Secondary Terminal Zone Controller

ALLOW 12” CLEARANCE FOR SERVICE

ACCESS TO CONTROL BOX

3” REF.

ZONE

CONTROLLER

END VIEW INLET

Fig. 6 — Service Clearance for Zone Controller Mounting

NOTE: Do not run sensor or communication wiring in the

same conduit with line-voltage wiring.

NOTE: An accessory conduit box (part no. 33ZCCONBOX) is

available for conduit wiring connections to the zone controller.

Perform the following steps to connect the power

transformer:

AIR

FLOW

1. Install the field-supplied transformer in an electrical

enclosure that conforms to NEC and local codes.

2. Connect 24 vac from the transformer as shown in the

CW TO OPEN, CCW TO CLOSE

applicable wiring diagram (Fig. 8A-J).

Connect Airflow Pickups — The zone controller de-

termines velocity pressure by obtaining the difference between

high and low duct pressure from two airflow pickups. The

pickups are connected to barb fittings on the zone controller

AIR

FLOW

with /₄-in. polyethylene tubing. All piping for this purpose

must conform to local codes.

Figure 9 indicates the positions of the two barb fittings.

Perform the following steps to install and connect the air-

flow pickups:

CCW TO OPEN, CW TO CLOSE

1. Select a location on the air handler’s supply air duct

where the airflow pickups will be installed. The loca-

tion should be one where there are at least three duct

diameters of straight duct upstream of the pickups. If

this requirement is not met, stable airflow measure-

ments may not be possible.

Fig. 7 — Damper Configuration

Connect the Power Transformer — An individual,

field-supplied, 24 vac power transformer is recommended for

each zone controller. If multiple zone controllers are powered

from one power transformer (100 va maximum for UL [Under-

writers’ Laboratories] Class 2 conformance), maintain polarity

on the power input terminals. All transformer secondaries are

required to be grounded. Use only stranded copper conductors

for all wiring to the zone controller. Wiring connections must

be made in accordance with NEC (National Electrical Code)

and local codes. Ground the transformer at the transformer lo-

cation. Provide an 18-gage, green, chassis ground wire at the

terminal.

2. Mount the field-supplied airflow pickup(s) in the duct,

following the manufacturer's directions. Two individ-

ual pickups may be used, one for high pressure airflow

and one for low pressure airflow. A dual pickup, which

combines the two functions, may also be used. When

using individual pickups, make sure that the one for

high pressure airflow faces upstream, in the direction

the air is coming from, and the one for low pressure

airflow faces downstream, in the direction the air is

going to.

The power supply is 24 vac ± 10% at 40 va (50/60 Hz).

3. Use field-supplied /₄-in. tubing (rated for the applica-

For 33ZCVAVTRM zone controllers, the power require-

ment sizing allows for accessory water valves and for electric

heat contactor(s). Water valves are limited to 15 va on both

two-position and modulating hot water. The electric heat con-

tactor(s) are limited to 10 va (holding) each.

For 33ZCFANTRM zone controllers, the power require-

ment sizing allows for accessory water valves and for the fan

contactor. Water valves are limited to 8 va on both two-position

and modulating hot water. The fan contactor is limited to

11 va (holding).

tion) to connect the high pressure airflow pickup to

barb fitting P1 on the pressure transducer. At the zone

controller, the P1 fitting is on the side with the filter

installed. Be careful to avoid sharp bends in the tubing,

because malfunctions may occur if the tubing is bent

too sharply. Use at least 2 ft of tubing for reading

stability.

4. Use field-supplied ¹/₄-in. tubing (rated for the applica-

tion) to connect the low pressure airflow pickup to

barb fitting P2 on the pressure transducer. Be careful to

avoid sharp bends in the tubing, because malfunctions

may occur if the tubing is bent too sharply. Use at least

2 feet of tubing for stability.

NOTE: If a water valve or electric heat contactor exceeds

these limits, or external contactors are required for electric

heat, then it is recommended a 60 va transformer be used.

The maximum rating for any output is 20 va.

303

O P

C L

C O M

303

801

303

801

24V*

COM

801

303

→

3. Connect the sensor cable as follows:

Install Sensors

a. Connect one wire from the cable (RED) to the

SPT terminal on the controller. Connect the other

end of the wire to the left terminal on the SEN ter-

minal block of the sensor.

b. Connect another wire from the cable (BLACK) to

the GND terminal on the controller. Connect the

other end of the wire to the remaining open termi-

nal on the SEN terminal block.

c. On 33ZCT56SPT thermostats, connect the re-

maining wire (WHITE/CLR) to the T56 terminal

on the controller. Connect the other end of the

wire to the right most terminal on the SET termi-

nal block.

d. In the control box, install a No. 6 ring type crimp

lug on the shield drain wire. Install this lug under

the mounting screw in the upper right corner of

the controller (just above terminal T1).

SPACE TEMPERATURE SENSOR INSTALLATION —

A space temperature sensor must be installed for each zone

controller. There are three types of SPT sensors available from

Carrier: the 33ZCT55SPT space temperature sensor with timed

override button, the 33ZCT56SPT space temperature sensor

with timed override button and set point adjustment and the

33ZCT58SPT with liquid crystal display. See Fig. 10.

The space temperature sensor is used to measure the build-

ing interior temperature and should be located on an interior

building wall. The sensor wall plate accommodates the NEMA

standard 2 x 4 junction box. The sensor can be mounted direct-

ly on the wall surface if accpectable by local codes.

Do not mount the sensor in drafty locations such as near air

conditioining or heating ducts, over heat sources such as base-

board heaters, radiators, or directly above wall mounted light-

ing dimmers. Do not mount the sensor near a window which

may be opened, near a wall corner, or a door. Sensors mounted

in these areas will have inaccurate and erratic sensor readings.

The sensor should be mounted approximately 5 ft from the

floor, in an area representing the average temperature in the

space. Allow at least 4 ft between the sensor and any corner

and mount the sensor at least 2 ft from an open doorway.

e. On 33ZCT56SPT thermostats install a jumper

between the two center terminals (right SEN and

left SET).

→

Wiring the Space Temperature Sensor (33ZCT58SPT) — The

T58 space temperature sensor is wired differently than other

conventional sensors. The T58 sends all its sensor information

through the CCN bus to the zone controller that is is associated

with. The SPT sensor wiring connections are not used. The T58

sensor does not need to be directly wired to the zone controller.

The T58 sensor may be powered by a separate 24-VAC pow-

er supply or may be connected to the J1 24 VAC power termi-

nals on the zone controller. Be sure that the polarity of the power

supply connections are consistent. For multiple devices wired to

the same power supply, all positive (+) and negative (–) termi-

nals should be wired in the same polarity.

Install the sensor as follows (see Fig. 11):

1. Locate the two Allen type screws at the bottom of the

sensor.

2. Turn the two screws clockwise to release the cover

from the sensor wall mounting plate.

3. Lift the cover from the bottom and then release it from

the top fasteners.

4. Feed the wires from the electrical box through the

opening in the center of the sensor mounting plate.

5. Using two no. 6-32 x 1 mounting screws (provided

with the sensor), secure the sensor to the electrical box.

Wire the T58 sensor to the CCN. Connect the CCN + termi-

nal to the RED signal wire (CCN+). Connect the CCN – termi-

nal to the BLACK signal wire (CCN–). Connect the GND

terminal to the WHITE/CLEAR signal wire (Ground). Refer to

the T58 sensor Installation Instructions for more information

on installing and wiring the sensor.

6. Use 20 gage wire to connect the sensor to the control-

ler. The wire is suitable for distances of up to 500 ft.

Use a three-conductor shielded cable for the sensor

and set point adjustment connections. The standard

CCN communication cable may be used. If the set

point adjustment (slidebar) is not required, then an

unshielded, 18 or 20 gage, two-conductor, twisted pair

cable may be used.

IMPORTANT: The T58 sensor must be configured with

the bus address and device type of the zone controller

before it will broadcast temperature to the zone control-

ler. Refer to the T58 sensor Installation Instructions for

more information on configuring the sensor.

The CCN network service jack requires a separate,

shielded CCN communication cable. Always use sepa-

rate cables for CCN communication and sensor wir-

ing. (Refer to Fig. 12 for wire terminations.)

Wiring the CCN Network Communication Service Jack —

See Fig. 12, 13, and 14. To wire the service jack, perform the

following:

1. Strip back the jacket from the CCN communication

cable(s) for at least 3 inches. Strip ¹/₄-in. of insulation

from each conductor. Remove the shield and separate

the drain wire from the cable. Twist together all the

shield drain wires and fasten them together using an

closed end crimp lug or a wire nut. Tape off any

exposed bare wire to prevent shorting.

7. Replace the cover by inserting the cover at the top of

the mounting plate first, then swing the cover down

over the lower portion. Rotate the two Allen head

screws counterclockwise until the cover is secured to

the mounting plate and locked in position.

8. For more sensor information, see Table 1 for ther-

mistor resistance vs temperature values.

NOTE: Clean sensor with damp cloth only. Do not use

solvents.

Wiring the Space Temperature Sensor (33ZCT55SPT and

33ZCT56SPT) — To wire the sensor, perform the following

(see Fig. 12 and 13):

2. Connect the CCN + signal wire(s) (RED) to

Terminal 5.

3. Connect the CCN – signal wire(s) (BLACK) to

Terminal 2.

1. Identify which cable is for the sensor wiring.

4. Connect the CCN GND signal wire(s) (WHITE/CLR)

to Terminal 4.

2. Strip back the jacket from the cables for at least

3-inches. Strip /₄-in. of insulation from each conduc-

tor. Cut the shield and drain wire from the sensor end

of the cable.

801

LOW PRESSURE

TUBING

HF23BJ042

Made in Switzerland

by Belimo Automation

35 in-lb (4 Nm)

80...110s

NEMA2

LISTED

94D5

_&U

TEMP. IND.

REG. EQUIP.

Class

Supply

24VAC/DC

50/60Hz

3VA

COM

WIP

wht

ora

yel blu

blk red

HIGH PRESSURE

TUBING

NOTE: Minimum length of tubing is 2 ft.

Fig. 9 — Airflow Pickup Installation

Warm

Cool

NOTE: Dimensions are in inches.

Fig. 10 — Space Temperature Sensor

Fig. 11 — Space Temperature Sensor and Wall

(P/N 33ZCT56SPT Shown)

Mounted Humidity Sensor Mounting

RED(+)

WHT(GND)

CCN COM

BLK(-)

SET

SEN

SW1

WHT

(T56)

BLK (GND)

RED (SPT)

BLK (GND)

RED (SPT)

SENSOR WIRING

JUMPER

TERMINALS

AS SHOWN

Cool

Warm

Fig. 12 — Space Temperature Sensor Wiring

Fig. 13 — Space Temperature Sensor Wiring

(33ZCT55SPT)

(33ZCT56SPT)

Table 1 — Thermistor Resistance vs Temperature Values for Space Temperature Sensor, Return-Air

Temperature Sensor, and Supply-Air Temperature Sensor

TEMP

(C)

TEMP

(F)

RESISTANCE

(Ohms)

–40

–35

–30

–25

–20

–15

–10

–5

–40

–31

–22

–13

–4

335,651

242,195

176,683

130,243

96,974

72,895

55,298

42,315

32,651

25,395

19,903

15,714

12,494

10,000

8,056

6,530

104

113

122

131

140

149

158

5,325

4,367

3,601

2,985

2,487

2,082

1,752

Wiring when distance between zone controller and space temperature sensor is 100 feet or less

CCN COMM BUS

100 FT. MAXIMUM

3 COND COMM CABLE (TYP)

2 COND TWISTED

CABLE OR 3 COND

CABLE (TEMP

SENSOR WIRING) (TYP)

ZONE

AIR TERMINAL

CONTROLLER

UNIT (TYP)

Cool

Warm

Cool

Warm

(TYP)

SPACE

TEMPERATURE

SENSOR

Wiring when distance between zone controller and space temperature sensor is greater than 100 feet

CCN COMM BUS

DISTANCE GREATER

THAN 100 FT.

2 COND TWISTED

CABLE OR 3 COND

CABLE (TEMP

SENSOR WIRING) (TYP)

ZONE

AIR TERMINAL

CONTROLLER

Cool

Warm

UNIT (TYP)

Cool

Warm

(TYP)

SPACE

TEMPERATURE

SENSOR

Fig. 14 — Communication Bus Wiring to Zone Controller

Before wiring the CCN connection, refer to the Connect to

the CCN Communication Bus section on page 26, for commu-

nication bus wiring and cable selection. The cable selected

must be identical to the CCN communication bus wire used for

the entire network.

The other end of the communication bus cable must be con-

nected to the remainder of the CCN communication bus. If the

cable is installed as a T-tap into the bus, the cable length cannot

exceed 100 ft. Wire the CCN service jack of the sensor in a

daisy chain arrangement with other equipment. Refer to the

Connect to the CCN Communication Bus section, page 26, for

more details.

PRIMARY AIR TEMPERATURE SENSOR INSTALLA-

TION — A primary air temperature (PAT) sensor is used on a

zone controller which is functioning as a Linkage Coordinator

for a non CCN/Linkage compatible air source. The part num-

ber is 33ZCSENPAT. See Fig. 15.

When used on a zone controller, try to select a zone control-

ler which will allow installation of the PAT sensor in the main

trunk, as close to the air source as possible. See Fig. 16.

If the unit is equipped with electric reheat, ensure that the

sensor is installed at least 2 ft downstream of the electric heater.

See Fig. 17 for the sensor location in this application.

If the unit has an octopus connected directly at the dis-

charge, install the sensor in the octopus. If the unit has an elec-

tric heater, the two foot minimum distance between the sensor

and the heater must be maintained. See Fig. 17 for the sensor

location in this application.

SUPPLY AIR TEMPERATURE (SAT) SENSOR INSTAL-

LATION — On terminals with heat, the SAT sensor is re-

quired. The SAT must be installed in the duct downstream

from the air terminal. The SAT sensor is also sometimes called

a duct temperature (DT) sensor. The part number is

33ZCSENSAT.

Disconnect electrical power before wiring the zone control-

ler. Electrical shock, personal injury, or damage to the zone

controller can result.

The SAT sensor probe is 6 inches in length. The tip of the

probe must not touch the inside of the duct. Use field-supplied

bushings as spacers when mounting the probe in a duct that is

6 in. or less in diameter.

Do not run sensor or relay wires in the same conduit or race-

way with Class 1 AC or DC service wiring. Do not abrade, cut,

or nick the outer jacket of the cable. Do not pull or draw cable

with a force that may harm the physical or electrical properties.

Avoid splices in any control wiring.

If the unit is a cooling only unit, the SAT is not required.

Perform the following steps to connect the SAT sensor to

the zone controller:

1. Locate the opening in the control box. Pass the sensor

probe through the hole.

2. Drill or punch a ¹/₄-in. hole in the duct downstream of

the unit, at a location that conforms to the require-

ments shown in Fig. 17.

3. Use two field-supplied, self-drilling screws to secure

the sensor probe to the duct. Use field-supplied bush-

ings as spacers when installing the sensor probe in a

duct 6 in. or less in diameter.

Perform the following steps if state or local code requires

the use of conduit, or if your installation requires a cable length

of more than 8 ft:

1. Remove the center knockout from a field-supplied 4 x

2-in. junction box and secure the junction box to the

duct at the location selected for the sensor probe.

2. Drill a /₂-in. hole in the duct through the opening in

the junction box.

3. Connect a ¹/₂-in. nominal field-supplied conduit

between the zone controller enclosure and the junction

box.

4. Pass the sensor probe wires through the conduit and

insert the probe in the duct. Use field-supplied bush-

ings as spacers when installing the sensor probe in a

duct 6 in. or less in diameter.

5. Secure the probe to the duct with two field-supplied

self-drilling screws.

Fig. 15 — Primary Air Temperature Sensor

(Part Number 33ZCSENPAT)

6. If you are extending cable length beyond 8 ft, use ple-

num rated, 20 AWG, twisted pair wire.

7. Connect the sensor leads to the zone controller’s wir-

ing harness terminal board at the terminals labeled

SAT and GND.

8. Neatly bundle and secure excess wire.

INDOOR AIR QUALITY SENSOR INSTALLATION

—

→

The indoor air quality (IAQ) sensor accessory monitors carbon

dioxide levels. This information is used to modify the position

of the outdoor air dampers to admit more outdoor air as

required to provide the desired ventilation rate. Two types of

sensors are supplied. The wall sensor can be used to monitor

the conditioned air space; the duct sensor monitors the return

air duct. Both wall and duct sensors use infrared technology to

measure the levels of CO₂present in the air. The wall sensor is

available with or without an LCD readout to display the CO₂

level in ppm. See Fig. 18.

The sensor part number is 33ZCSENCO2. To mount the

sensor, refer to the installation instructions shipped with the ac-

cessory kit.

Fig. 16 — Primary Air Temperature Sensor

Installation (Unit Discharge Location)

800

UNIT WITH ELECTRIC REHEAT

2 FT. MIN.

AIR

TERMINAL

UNIT

PRIMARY

AIR INLET

SAT

HEAT

UNIT WITH OCTOPUS

2 FT. MIN.

AIR

TERMINAL

UNIT

PRIMARY

AIR INLET

OCTOPUS

SAT

HEAT

ZC — Zone Controller

→ Fig. 17 — Supply Air Temperature Probe (Part No. 33ZCSENSAT) Locations

The CO₂sensors (33ZCSENCO2) factory set for a range of

0 to 2000 ppm and a linear voltage output of 0 to 10 vdc.

Figure 19 shows ventilation rates for various CO₂set points

when outside air with a typical CO₂level of 350 ppm is used.

Refer to the instructions supplied with the CO₂sensor for elec-

trical requirements and terminal locations. The zone controller

requires 24 vac 25 va transformer to provide power to the

sensor.

To convert the CO₂sensor into a duct-mounted CO₂sensor,

the duct-mounted aspirator (33ZCASPCO2) will need to be

purchased.

To accurately monitor the quality of the air in the condi-

tioned air space, locate the sensor near the return air grille so it

senses the concentration of CO₂leaving the space. The sensor

should be mounted in a location to avoid direct breath contact.

Do not mount the space sensor in drafty areas such as near

supply ducts, open windows, fans, or over heat sources. Allow

at least 3 ft between the sensor and any corner. Avoid mounting

the sensor where it is influenced by the supply air; the sensor

gives inaccurate readings if the supply air is blown directly

onto the sensor or if the supply air does not have a chance to

mix with the room air before it is drawn into the return air

stream.

To accurately monitor the quality of the air in the return air

duct, locate the sensor at least 6 in. upstream or 15 in. down-

stream of a 90 degree turn in the duct. The downstream loca-

tion is preferred. Mount the sensor in the center of the duct.

5.625

(14.3)

(12.7)

IMPORTANT: If the sensor is mounted in the return air

duct, readjust the mixed-air dampers to allow a small

amount of air to flow past the return air damper when-

ever the mixing box is fully open to the outside air. If the

damper is not properly adjusted to provide this mini-

mum airflow, the sensor may not detect the indoor-air

quality during the economizer cycle.

0.25

(0.8)

3.25

(8.3)

1.125

(2.9)

Fig. 18 — Indoor Air Quality (CO₂) Sensor

(33ZCSENCO2)

303

The sensor must be mounted vertically on the wall. The

Carrier logo should be oriented correctly when the sensor is

properly mounted.

DO NOT mount the sensor in drafty areas such as near heat-

ing or air-conditioning ducts, open windows, fans, or over heat

sources such as baseboard heaters, radiators, or wall-mounted

light dimmers. Sensors mounted in those areas will produce in-

accurate readings.

Avoid corner locations. Allow at least 4 ft between the sen-

sor and any corner. Airflow near corners tends to be reduced,

resulting in erratic sensor readings.

Sensor should be vertically mounted approximately 5 ft up

from the floor, beside the space temperature sensor.

For distances up to 500 feet, use a 3-conductor, 18 or 20

AWG cable. A CCN communication cable can be used,

although the shield is not required. The shield must be removed

from the sensor end of the cable if this cable is used. See

Fig. 22 for wiring details.

The power for the sensor is provided by the control board.

The board provides 24 vdc for the sensor. No additional power

source is required.

Fig. 19 — Ventilation Rated Based on

CO₂Set Point

Indoor Air Quality Sensor Wiring — To wire the sensors

after they are mounted in the conditioned air space and return

air duct, see Fig. 20 and the instructions shipped with the sen-

sors. For each sensor, use two 2-conductor 18 AWG twisted-

pair cables (unshielded) to connect the separate isolated 24 vac

power source to the sensor and to connect the sensor to the con-

trol board terminals. To connect the sensor to the control board,

identify the positive (+) PIN-8 and ground (GND) PIN-7 termi-

nals on the sensor and connect the positive terminal to terminal

RH/IAQ and connect the ground terminal to terminal GND.

To wire the sensor, perform the following:

1. At the sensor, remove 4-in. of jacket from the cable.

Strip /₄-in. of insulation from each conductor. Route

the cable through the wire clearance opening in the

center of the sensor. See Fig. 22.

HUMIDITY SENSOR (WALL-MOUNTED) INSTALLA-

TION — The accessory space humidity sensor is installed on

an interior wall to measure the relative humidity of the air with-

in the occupied space. See Fig. 21.

The use of a standard 2- x 4-in. electrical box to accommo-

date the wiring is recommended for installation. The sensor can

be mounted directly on the wall, if acceptable by local codes.

If the sensor is installed directly on a wall surface, install the

humidity sensor using 2 screws and 2 hollow wall anchors

(field-supplied); do not overtighten screws. See Fig. 11.

2. Connect the RED wire to the sensor screw terminal

marked (+).

3. Install one lead from the resistor (supplied with the

sensor) and the WHITE wire, into the sensor screw ter-

minal marked (–). After tightening the screw terminal,

test the connection by pulling gently on the resistor

lead.

4. Connect the remaining lead from the resistor to the

BLACK wire and secure using a closed end type crimp

connector or wire nut.

5. Using electrical tape, insulate any exposed resistor

lead to prevent shorting.

6. At the control box, remove the jacket from the cable

and route the RED conductor over to the left side of

the control board. Route the remaining conductors to

the right side of the control board.

Do NOT clean or touch the sensing element with chemical

solvents; they can permanently damage the sensor.

RH/IAQ

GND

HF23BJ042

Made in Switzerland

by Belimo Automation

35 in-lb (4 Nm)

80...110s

LR 92800

LINE

24 VAC

NEMA2

VOLTAGE

LISTED

94D5

_{TEMP. IND. &}U

SEPARATE

REG. EQUIP.

Class Supply

ISOLATED

POWER

24VAC/DC

50/60Hz

3VA

SUPPLY

COM

REQUIRED

(24 VAC, 25 VA

MINIMUM)

WIP

blu ora

yel

red wht

blk

*Do not connect to the same transformer that supplies power to the zone controller.

→ Fig. 20 — Indoor Air Quality Sensor Wiring

303

Refer to the service configuration table and set the Heating

Loop parameters as follows:

Proportional Gain = 20.0

Integral Gain = 0.5

Derivative Gain = 0.0

Start Value = 102.0

Also, set the Ducted Heat decision to YES and set the Max-

imum Duct Temperature decision equal to the design (maxi-

mum) boiler water temperature minus 20 degrees, but not

greater than 200 degrees F.

Connect the CCN Communication Bus — The

zone controllers connect to the bus in a daisy chain arrange-

ment. The zone controller may be installed on a primary CCN

bus or on a secondary bus from the primary CCN bus. Con-

necting to a secondary bus is recommended.

At 9,600 baud, the number of controllers is limited to 128

zones maximum, with a limit of 8 systems (Linkage Coordina-

tor configured for at least 2 zones). Bus length may not exceed

4000-ft, with no more than 60 devices on any 1000-ft section.

Optically isolated RS-485 repeaters are required every 1000 ft.

At 19,200 and 38,400 baud, the number of controllers

is limited to 128 maximum, with no limit on the number of

Linkage Coordinators. Bus length may not exceed 1000 ft.

Fig. 21 — Wall Mounted Relative Humidity Sensor

(P/N 33AMSENRHS000)

The first zone controller in a network connects directly to

the bridge and the others are wired sequentially in a daisy chain

fashion. Refer to Fig. 25 for an illustration of CCN Communi-

cation Bus wiring.

The CCN Communication Bus also connects to the zone

controller space temperature sensor. Refer to the Install the

Sensors section for sensor wiring instructions.

7. Strip ¹/₄-in. of insulation from each conductor

and equip each with a /₄-in. female quick connect

terminal.

8. Connect the RED wire to terminal +24v on the control

board.

9. Connect the BLACK wire to terminal GND on the

control board.

COMMUNICATION BUS WIRE SPECIFICATIONS —

The Carrier Comfort Network (CCN) Communication Bus

wiring is field-supplied and field-installed. It consists of

shielded three-conductor cable with drain (ground) wire. The

cable selected must be identical to the CCN Communication

Bus wire used for the entire network. See Table 2 for recom-

mended cable.

10. Connect the WHITE/CLEAR wire to terminal

RH/IAQ on the control board.

11. Connect shield to ground (if shielded wire is used).

→

Remote Occupancy Contact — The remote occu-

pancy input (J4 pin 2) has the capability to be connected to a

normally open or normally closed occupancy dry contact. Wire

the dry contact as show in Fig. 23 between J4 Pin 2 and

24 VAC J1 Pin 1. The 24 VAC necessary to supply the

ComfortID™ Controller remote occupancy contact input shall

be supplied using the existing ComfortID Controller.

Table 2 — Recommended Cables

MANUFACTURER

Alpha

American

Belden

CABLE PART NO.

2413 or 5463

A22503

Connect the Outputs — Wire the zone controller’s

outputs (fan, staged heat, valves) as shown in the applicable

wiring diagrams in Fig. 8A-J.

8772

Columbia

02525

NOTE: Conductors and drain wire must be at least 20 AWG

(American Wire Gage), stranded, and tinned copper. Individual con-

ductors must be insulated with PVC, PVC/nylon, vinyl, teflon, or

polyethylene. An aluminum/polyester 100% foil shield and an outer

jacket of PVC, PVC/nylon, chrome vinyl, or Teflon with a minimum

operating temperature range of –20° C to 60° C is required.

Modulating Baseboard Hydronic Heating — In-

stall the water valve on the leaving water end of the baseboad

heater. See Fig. 24. Observe the fluid flow direction when

mounting the valve. Be sure to properly heat sink the valve and

direct the flame away from the actuator and valve body when

sweating the valve connections. Install the leaving water tem-

perature sensor (33ZCSENCHG) on the hydronic heating coil

as shown. The sensor accommodates nominal copper pipe

from ¹/₂to 1-in. (OD sizes from ⁵/₈to 1.125 in.). It should be

secured to the pipe with the clamp supplied. If piping is larger

than 1-in. nominal size, a field-supplied clamp must be used.

Use fiberglass pipe insulation to insulate the sensor assembly.

Refer to Fig. 8C and 8H to wire the modulating water valve

and the sensor to the zone controller. Connect the leaving water

temperature sensor to the controller using the wiring connec-

tions shown for the SAT sensor. (NOTE: The leaving water

temperature sensor replaces the SAT sensor in this application.)

Use 18 or 20 AWG wire for all connections. The water valve

actuator housing may be used as a junction box if the leaving

water temperature sensor cable is not long enough and the sen-

sor cable must be extended to reach the controller.

CONNECTION TO THE COMMUNICATION BUS

1. Strip the ends of the red, white, and black conductors

of the communication bus cable.

2. Connect one end of the communication bus cable to

the bridge communication port labeled COMM2 (if

connecting on a secondary bus).

When connecting the communication bus cable, a

color code system for the entire network is recom-

mended to simplify installation and checkout. See

Table 3 for the recommended color code.

Table 3 — Color Code Recommendations

CCN BUS WIRE

COLOR

PLUG PIN

NUMBER

SIGNAL TYPE

Red

White

Black

Ground

–

For modulating hydronic heating applications, the default

configuration must be changed to properly control the valve.

801

3. Connect the other end of the communication bus cable

to the terminal block labeled CCN in the zone control-

ler of the first air terminal. Following the color code

in Table 3, connect the Red (+) wire to Terminal 1.

Connect the White (ground) wire to Terminal 2. Con-

nect the Black (–) wire to Terminal 3.

4. Connect additional zone controllers in a daisy chain

fashion, following the color coded wiring scheme in

Table 3. Refer to Fig. 25.

NOTE: The communication bus drain wires (shield) must

be tied together at each zone controller. If the communica-

tion bus is entirely within one building, the resulting contin-

uous shield must be connected to ground at only one single

point. If the communication bus cable exits from one build-

ing and enters another building, connect the shields to

ground at a lightning suppressor in each building where the

cable enters or exits (one point only).

3 CONDUCTOR

20 AWG CABLE

RED

WHITE

BLACK

499

RESISTOR

(SUPPLIED

W/SENSOR)

SHIELD

(IF USED)

HUMIDITY SENSOR

RH/IAQ

GND

+24V

HF23BJ042

Made in Switzerland

by Belimo Automation

35 in-lb (4 Nm)

80...110s

LR 92800

NEMA2

LISTED

94D5

_{TEMP. IND. &}U

REG. EQUIP.

Class Supply

24VAC/DC

50/60Hz

3VA

COM

WIP

blk

blu ora

yel

red wht

Fig. 22 — Humidity Sensor Wiring

303

33ZCSENCHG

(SENSOR)

FLOW

1/2” TUBE

3/4” TUBE

1” TUBE

→ Fig. 24 — Typical Water Valve and Sensor Installation

1000 FT. MAXIMUM

DRAIN WIRE (TYP)

BLK (TYP)

WHT (TYP)

RED (TYP)

GND

CCN

COMM 2

(TYP)

AIR TERMINAL

UNIT (TYP)

BRIDGE

(RECOMMENDED)

LEGEND

CCN

— Carrier Comfort Network

— Zone Controller

Fig. 25 — Communication Bus Wiring

3. Check that all air duct connections are tight.

START-UP

4. At the air terminals, check fan and system controls for

proper operation. Verify that actuator screws are prop-

erly tightened.

Use the Carrier network communication software to start up

and configure the zone controller.

All set-up and set point configurations are factory-set and

field-adjustable.

5. At the air terminals, check electrical system and con-

nections of any optional electric reheat coil. If hot

water reheat is used, check piping and valves against

job drawings.

6. At the air terminals, make sure that all balancing

dampers at box outlets are in the fully open position.

7. If using an air handler with field-installed controls,

make sure controls and sensors have been installed and

wired per manufacturer installation instructions.

8. At air handlers, verify that the motor starter and, if

applicable, the Hand/Off/Auto (HOA) switch are

installed and wired.

Changes can be made using the ComfortWORKS^®soft-

ware, ComfortVIEW™ software, or Network Service Tool.

The Network Service Tool is a portable interface device that al-

lows the user to change system set-up and set points from a

zone sensor or terminal control module. During start-up, the

Carrier software can also be used to verify communication

with each zone controller.

For specific operating instructions, refer to the literature

provided with the software.

Perform System Check-Out

NOTE: The HOA switch must be in the Off position.

1. Check correctness and tightness of all power and com-

munication connections.

2. Check that all air terminals, ductwork, and zone con-

trollers are properly installed and set according to

installation instructions and job requirements.

800

9. Check to be sure the area around the air handler(s) is

clear of construction dirt and debris.

elliptical damper inlet is supplied, then enter the inlet

size in square inches in the Inlet Area decision.

10. Check that final filters are installed in the air han-

dler(s). Dust and debris can adversely affect system

operation.

11. Verify that the zone controller and the air handler con-

trols are properly connected to the CCN bus.

5. If the terminal damper closes in the CW direction, then

no adjustment is required. Otherwise, locate the

damper direction configuration decision (CW Rota-

tion) and toggle the value to OPEN by using the space

bar. This configuration decision is also located on the

Terminal Service Configuration screen.

6. After entering the area and rotation direction, verify

operation of the damper. From the service tool Diag-

nostic, Maintenance Screen, select the Zone Air

Balance/Commissioning Table and force the Commis-

sioning Mode point to Enable. Then select the

Damper/Transducer Cal point and force this point to

Enable. The controller automatically tests the actuator

by fully closing the damper.

Before starting the air source fan, make sure that dampers

at the system’s air terminals are not fully closed. Starting

the fan with dampers closed will result in damage to the

system ductwork.

12. Remember to utilize good duct design and to provide

sufficient straight duct at the inlet of the box. A mini-

mum of three times the inlet size is recommended.

It checks the fully closed position to determine if the

control was properly mounted. It then opens the

damper. The control scales the actual actuator travel

range used to a 0 to 100% open value. Finally the con-

trol will close the damper, test, and zero the pressure

transducer. When completed, the control automatically

removes the force from the Damper/Transducer Cal

point. If a failure occurs at any point during the testing,

the Auto-Calibration point at the bottom of the screen

will indicate ALARM and the test will be aborted.

Network Addressing — Use the following method

when all the zone controllers are installed and powered, and the

SPT sensors are wired and functioning properly. This method

can be used if no addresses have been set previously. The ad-

dress of an individual zone controller may be set by using the

address search function on the Service Tool software when it is

directly connected to the service port of the zone controller and

the CCN bus is disconnected. This is the standard method of

setting the address.

Addresses may also be set using the Service Tool Address

Search Function if the zone controller is isolated from the CCN

bus.

Each zone controller will default to an address of 0, 140

when its application software is initially loaded. Since multiple

controllers will be on the same bus, a unique address must be

assigned to each controller before the system can operate prop-

erly. The assignment of controller addresses will be performed

through software by using the Address Search function of the

Network Service Tool, as follows:

1. The software recognizes that the Zone Controller's ad-

dress, stored in the zone controller memory, has not been

written yet (this will be true when the unit is first powered

up on the job, or after a jumper-initiated reset).

2. Press the override button on the SPT (terminals J4-14 and

J4-12 are shorted) for 1 to 10 seconds.

3. The zone controller address changes from 0, 140 to 239,

239 for a period of 15 minutes.

4. Use Network Service Tool to change the address from

239, 239 to a valid system address within 15 minutes.

7. The actuator stroke has now been calibrated for the

proper rotation.

Airflow Check — After the damper transducer calibration

has been performed, the terminal is ready for an airflow check.

To perform airflow check, make sure Terminal Type, Primary

Inlet Size, and Probe Multiplier settings on the Terminal Ser-

vice Configuration screen are configured. If all of the terminals

were installed with the dampers open, it is acceptable to start

the fan at this time. If it becomes difficult for the air source to

provide the necessary static pressure for airflow testing, it may

be necessary to calibrate the damper transducer for a majority

of terminals and check temperatures and set points to be sure

most will be controlling to less than maximum CFM when the

air source is started.

When the system fan is running and the static pressure is

fairly stable access the Zone Air Balance/Commissioning table

and force the Commissioning Mode Point to Enable. The sys-

tem is now ready to enable maximum CFM and check if the

airflow controls correctly with the maximum CFM set point.

Read the Zone Air Balance/Commissioning table section on

page 47 which describes the Zone Air Balance/Commissioning

table and what adjustments can be made from this screen. If the

maximum airflow function is working properly, the user can

stop here and leave the rest of the airflow calibration for the air

balance contractor.

→

NOTE: If the address is not changed from 239, 239 to

a valid system address within 15 minutes, the control-

ler will revert to address 0, 140 and use of the override

button will cause the address function to repeat. The

operator MUST actively set the address even if the

final desired address is 0, 140.

If working with the air balance contractor, proceed with the

minimum airflow calibration at this time. If this terminal is fan

powered or the terminal was installed with heat, and the heat

configuration was already performed, continue with the fan

and heat test while the Zone Air Balance/Commissioning table

is still being displayed.

Initial Operation and Test — Perform the following

procedure:

1. Apply 24 vac power to the control.

2. Connect the service tool to the phone jack service port

of the controller.

3. Using the service tool, upload the controller from

address assigned in Network Addressing section

above.

4. From the Terminal Service Configuration screen,

properly configure the damper type and inlet size. If a

round inlet is used, then enter the size directly in the

Inlet Diameter decision. If a square, rectangular, or

Fan and Heat Configuration and Test — Per-

form the following procedure to configure and test the fan and

heat:

1. Display the Terminal Service Configuration screen to

make sure the proper Terminal Type and Heat Type are

configured. See the Configuration section to answer

questions about the individual configurations.

2. From the Diagnostics Maintenance Screen select the

Zone Air Balance/Commissioning table.

3. Force the Commissioning Mode to Enable.

501

4. If the terminal is a parallel or series powered fan box,

force the Fan Override to Enable. If the damper is open

it may have to be repositioned to the proper position

depending on the box type. Damper percent change

will be displayed. After the damper is positioned cor-

rectly, the fan relay should energize and the fan should

run for a few seconds.

5. Make sure the fan runs and the Fan Override decision

returns to disabled to ensure the fan is wired correctly

for proper operation.

6. Force the Heating Override to Enable. If the unit is a

single duct unit, this must be done with the primary

terminal at reheat set point. The damper will modulate

to maintain the terminal reheat CFM. The heat outputs

will be commanded to provide maximum heat. If the

unit is a fan powered terminal, the fan must be on.

TERMINAL TYPE — Terminal type is the confirmation of

the terminal type configuration in the SERVCONF Service

Config table.

Terminal Type: Display Units

Default value

ASCII

SINGLDUCT

SINGLDUCT, PAR

Display Range

FAN, SER FAN, DUALDUCT

Network Access Read only

→

CONTROLLING SETPOINT — Controlling Setpoint will

display either the heating master reference or the cooling mas-

ter reference depending upon what mode the terminal is in. The

display will default to the heating master reference and display

the last controlling master reference when in neither heating

nor cooling.

Controlling

Setpoint

Display Units

Default Value:

F (C)

NOTE: The CFM settings can be found under service con-

figuration in the table AIRFLOW.

–40

Display Range: –40 to 245

Network Access: Read only

CONFIGURATION

SPACE TEMPERATURE — Space temperature from 10 kΩ

thermistor (Type III) located in the space.

The following sections describe the computer configuration

screens which are used to configure the zone controller. The

screens shown may be displayed differently when using differ-

ent Carrier software.

Space

Temperature:

Display Units

Default Value

Display Range

F (C)

-40.0

-40.0 to 245.0

Network Access Read/Write

Points Display Screen — The Points Display screen

allows the user to view the status of the air terminal controller

points. See Table 4.

TERMINAL MODE — The terminal mode is determined by

the equipment mode as reported by linkage and space require-

ments determined by space temperature and set points. The

ZEROCAL and COMMISS modes are the result of the activat-

ing the commissioning maintenance table to perform terminal

testing and commissioning.

PRIMARY AIRFLOW — Volume of primary air calculated

for pressure reading from the velocity pressure pickup probe

located in the input collar of the air terminal.

Primary Airflow: Display Units

Default Value

cfm

Display Range

0 to 9999

Network Access Read/Write

PRIMARY DAMPER POSITION — Damper position per-

cent range of rotation determined by the transducer calibration

procedure. The zone controller is designed be used on dampers

with any range of rotation.

Terminal Mode: Display Units

Default Value

ASCII

COOL

Display Range

HEAT, COOL, VENT,

FAN AND VENT, DEHUMID, WARM-

UP, REHEAT, PRESSURE, EVAC, OFF,

ZEROCAL, COMMISS

Primary Damper

Position:

Display Units

Default Value

Display Range

% open

Network Access Read only

0 to 100

Network Access Read only

→ Table 4 — Points Display Screen

DESCRIPTION

Terminal Mode

Terminal Type

Controlling Setpoint

Space Temperature

Primary Airflow

Primary Damper Position

Supply Air Temperature

Local Heating Capacity

Terminal Fan

DEFAULT

COOL

SINGLDUCT

-40.0 F

0 cfm

POINT NAME

MODE

TYPE

CNTSP

SPT

PRIFLO

DMPPOS

SAT

100 %

0.0 F

0 %

HCAP

FAN

Off

Relative Humidity

Air Quality (ppm)

Secondary Airflow

Primary Air Temperature

Heat

0 % RH

0 ppm

0 cfm

0.0 F

Dsable

SECFLO

PATEMP

HEAT

801

SUPPLY AIR TEMPERATURE — Temperature of the air

leaving the zone controller downstream of any ducted heat

source. Measured by a 10 kΩ thermistor (Type III). This tem-

perature is used to control the maximum discharge air to the

space when local heat is active. The sensor is not required or

recommended for cooling only terminals. If supply air temper-

ature display is required by specification, on a cooling only

box, a heat type other than zero must be configured. This

will have no adverse affect on the operation of a cooling only

terminal.

Air Quality (ppm):Display units

None shown (parts per

million implied)

Default Value

Display range

Network Access Read/Write

0 to 5000

SECONDARY AIRFLOW — Airflow reading from the sec-

ondary pressure transducer, supplied with the secondary actua-

tor, intended for dual duct and pressure control applications.

Secondary

Airflow:

Display Units

Default Value

Display Range

cfm

0 to 9999

Supply

Air Temperature: Display Units

Default Value

F (C)

0.0

Network Access Read/Write

Display Range

-40.0 to 245.0

PRIMARY AIR TEMPERATURE — Primary air tempera-

ture from sensor (10 kΩ, Type III), located in main trunk of

ductwork for supply air provided by the air-handling equip-

ment. Used for linkage coordination.

Network Access Read/Write

LOCAL HEATING CAPACITY — When local heat at the

terminal is enabled the percent of heat being delivered is deter-

mined by the following formula for modulating (floating point)

type heat:

% Capacity = [(SAT - SPT)/(Maximum Duct Temp – SPT )]

The percent of heat delivered is determined by the follow-

ing for two-position hot water or staged electric heat:

Primary Air

Temperature:

Display Units

Default Value

Display Range

F (C)

0.0

-40.0 to 245.0

Network Access Read/Write

% Output Capacity = (# of active stages/Total stages) * 100

Local Heating

HEAT ENABLE/DISABLE — Provides enable/disable

function for local heat at the terminal. When enabled the Local

heat capacity function will run to operate the terminal heat.

Capacity:

Display Units

Default Value

Display range

% output capacity

Heat Display:

Display Units

Default Value

Display Range

Discrete ASCII

Dsable

0 to 100

Network Access Read only

Dsabe/Enable

Network Access Read/Write

TERMINAL FAN — The commanded output for the terminal

fan on a fan powered terminal.

Modify Controller Configuration — In Service

Tool software, select the desired zone controller and access the

Modify Controller Configuration Menu screen. This configura-

tion screen is also displayed under CONFIGURE when using

ComfortWORKS^®and ComfortVIEW™ software.

Terminal Fan:

Display Units

Default Value

Display Range

Discrete ASCII

Off

Off/On

Network Access Read/Write

RELATIVE HUMIDITY — Space Relative Humidity read-

ing from the optional relative humidity sensor. Used by Hu-

midity control function if configured.

The Modify Controller Configuration Menu screen is used

to access the Alarm Limit Configuration screen, Controller

Identification screen, Holiday Configuration screen, Linkage

Coordinator Configuration screen, Occupancy Configuration

screen, and Set Point screen.

ALARM LIMIT CONFIGURATION SCREEN — The

Alarm Limit Configuration screen is used to configure the

alarm settings for the zone controller. See Table 5.

Relative

Humidity:

Display Units

Default Value

Display Range

% RH

0 to 100

Network Access Read/Write

AIR QUALITY — Indoor air quality reading from a CO₂sen-

sor installed in the space. Used by Air Quality control function

if configured.

→ Table 5 — Alarm Limit Configuration Screen

DESCRIPTION

Alarm Routing Control

Re-Alarm Time

DEFAULT

00000000

POINT NAME

ROUTING

RETIME

SPT Occupied Hysteresis

5.0 F

SPTHYS

Unoccupied SPT

Low Limit

High Limit

40 F

99 F

LOWLIM

HIGHLIM

Occupied RH

Low Limit

High Limit

10 %

99 %

LOWLIM

HIGHLIM

Unoccupied RH

Low Limit

High Limit

0 %

100 %

LOWLIM

HIGHLIM

Air Quality

Low Limit

High limit

250 ppm

1200 ppm

LOWLIM

HIGHLIM

High Velocity Pressure

1.2 in. wg

HIGHVP

801

→

Alarm Routing Control — This decision indicates which

CCN system software or devices will receive and process

alarms sent by the zone controller. This decision consists of

eight digits each can be set to zero or one. A setting of 1 indi-

cates alarms should be sent to this device. A setting of zero dis-

ables alarm processing for that device. Currently the corre-

sponding digits are configured for the following devices: first

digit - user interface software; second digit - autodial gateway

or Telink; fourth digit - alarm printer interface module; digits 3,

and 5 through 8 - unused.

Unoccupied Humidity Low Limit — This configuration de-

fines the lowest humidity that the unoccupied space can be

before an alarm is generated.

Unoccupied

Humidity Low

Limit:

Units

% humidity

0 to 100%

Range

Default Value

Unoccupied Humidity High Limit — This configuration de-

fines the highest humidity that the unoccupied space can be

before an alarm is genenerated.

Alarm Routing

Control:

Range

Default Value

00000000 to 11111111

00000000

Unoccupied

Humidity High

Limit:

Re-Alarm Time — This decision is used to configure the num-

ber of minutes the zone controller will wait before an alarm

condition which has not been corrected will be re-transmitted

on the communications network. Re-alarming of an alarm con-

dition will continue until the condition no longer exists.

Units

% humidity

0 to 100%

100

Range

Default Value

Indoor Air Quality Low Limit — This configuration defines

the lowest CO₂level that the occupied space can have before

an alarm is generated.

Alarm Re-Alarm

Time:

Units

Minutes

0 to 1440

0 (Disabled)

Indoor Air Quality

Low Limit:

Range

Units

PPM (implied)

0 to 5000

250

Default Value

Range

Space Temperature Occupied Hysteresis — This configura-

tion defines the range above the occupied high set point and be-

low the occupied low set point that the space temperature must

exceed for an alarm condition to exist during occupied hours.

Default Value

Indoor Air Quality High Limit — This configuration defines

the highest CO₂level that the occupied space can have before

an alarm is generated.

Space Temperature

Occupied

Indoor Air Quality

High Limit:

Units

PPM

0 to 5000 PPM

1200

Hysteresis:

Units

delta F (delta C)

0.0 to 99.9

5.0

Range

Default Value

High Velocity Pressure — This configuration defines the

maximum velocity pressure the zone controller should see at

the pickup mounted in the inlet of the terminal. This is also

used by the zone controller to calculate the maximum CFM the

terminal will be able to control to using the terminal inlet size

configured in the service configuration table.

Unoccupied Space Temperature Low Limit — This configu-

ration defines the lowest temperature that the unoccupied space

can be before an alarm is generated.

Unoccupied Space

Temperature

Low Limit:

Units

F (C)

0 to 255 F

High Velocity

Pressure:

Range

Units

in. wg

0.0 to 2.0 in. wg

1.2

Default Value

Range

Unoccupied Space Temperature High Limit — This configu-

ration defines the highest temperature that the unoccupied

space can be before an alarm is generated.

Default Value

CONTROLLER IDENTIFICATION SCREEN — The con-

troller identification screen displays the device information for

the zone controller.

HOLIDAY CONFIGURATION SCREENS — The zone

controller has configuration screens for up to 12 different holi-

day schedules. Highlight the holiday name on the screen and

press enter to configure the holiday schedule. A separate screen

is used to ENTER the Holiday schedule.

Unoccupied Space

Temperature

High Limit:

Units

F (C)

0 to 255 F

Range

Default Value

Occupied Humidity Low Limit — This configuration defines

the lowest humidity that the occupied space can be before an

alarm is generated.

Start Month — The start month is the month in which the hol-

iday starts. Months are represented by numbers with 1 repre-

senting January, 2 February, up to 12.

Occupied Humidity

Low Limit:

Units

% humidity

0 to 100%

Start Month:

Range

Default Value

1 to 12

Range

Default Value

Start Day — The start day is the day on which the holiday will

start.

Occupied Humidity High Limit — This configuration de-

fines the highest humidity that the occupied space can be be-

fore an alarm is generated.

Start Day:

Range

Default Value

1 to 31

Occupied Humidity

Duration — Length of time, in days, that the holiday will last.

High Limit:

Units

% humidity

0 to 100%

Range

Default Value

Duration:

Range

Default Value

0 to 365

801

LINKAGE

COORDINATOR

CONFIGURATION

Air Source Bus and Element Number — The Air Source Bus

and Element Number configurations define the address of the

air source providing conditioned air to the zones controlled by

the linkage coordinator. If the address is left at zero, the Link-

age coordinator will look for a primary air sensor to determine

the equipment mode. If no primary air sensor is installed, or the

sensor fails, the Linkage Coordinator will default the air source

mode to Cooling.

SCREEN — The Linkage Coordinator Configuration screen

allows the user to set the linkage coordinator configuration set-

tings. See Table 6.

Linkage Master Zone — This decision defines if the zone

controller will function as a Linkage Coordinator (Linkage

Master) for itself and other zones.

If the zone controller is to use a supply air sensor for stand-

alone operation, this configuration must be configured to No

and the number of Zones to 1.

If the zone controller will use its primary air sensor to deter-

mine the air handler mode for a number of zone controllers,

configure this configuration to Yes, input the number of zones,

and leave the air source decisions at the default values of zero.

Air Source

Bus Number:

Range

Default Value

0 to 240

Air Source

Element Number:

0 to 240

Default Value

If this zone controller will communicate linkage informa-

tion with an air source, configure this configuration to Yes. The

number of zones must be configured and the address of the air

source entered.

Static Pressure Reset — Air systems designed with diversity

(airflow required with all zones at maximum cfm exceeds de-

sign capacity of air handler) are capable of providing enough

CFM to all zones on days when conditions meet the demand at

design static. At other times, the air system does not require the

design static to meet the load requirements.

Static pressure reset allows the static pressure set point on

the air source to be reset whenever the system load is reduced

from the design maximum. The zone controller will then moni-

tor damper positions. When the system dampers are modulat-

ing at lower damper positions due to the higher static, the static

pressure will then be reset to a lower value allowing the damp-

ers to open more. This allows the system to automatically make

adjustments to the static pressure and optimize performance of

the fan which will reduce energy consumption.

The linkage coordinator monitors the position of all damp-

ers in its system. When any zone’s maximum damper position

reaches the Reset Maximum Damper Position, the linkage co-

ordinator will reduce the value of the reset variable.

The Maximum Damper Position and Static Pressure Reset

values can be viewed on the Linkage maintenance screen.

Linkage

Master Zone:

Range

Default Value

Yes/No

Number of Zones — This decision defines the number of zone

controllers (including itself) for the Linkage Coordinator to

scan and include as part of the average temperature, set points,

and occupancy information to the air source. The address of the

zone controller functioning as a Linkage Coordinator must be

larger than the number of zones configured. The zone control-

ler will scan addresses less than its own, including information

for as many zones as are configured. Other zone controller con-

figured as linkage coordinators will also be included, so it is

possible to have zones scanned by more than one linkage coor-

dinator. Therefore care must be taken in addressing to prevent

overlapping systems, unless overlapping systems is necessary.

In large buildings the use of bridges and multiple busses is rec-

ommended to improve communication and provide system

differentiation.

NOTE: The static pressure set point configured in the air

source should be the desired maximum (zero reset) static

pressure.

Number of

Zones:

Range

Default Value

1 to 128

→ Table 6 — Linkage Coordinator Configuration Screen

DESCRIPTION

DEFAULT

POINT NAME

Zone Linkage

Linkage Master Zone

Number of Zones

Air Source Bus Number

Air Source Element Number

Static Pressure Reset

MZENA

NSYSTZ

ASBUSN

ASELEMN

Reset Minimum Damper Position

Reset Maximum Damper Position

Maximum Reset

SP Reset Variable Name

CCN Linkage Data

50 %

80 %

0.0 in. wg

(blank)

MINDP

MAXDP

SPMAX

SPRVAR

CCN Variable Name

CCN Function Configuration

Data Transfer Rate

(blank)

10 minutes

(blank)

CCNVAR

CCNFUNC

DATARATE

CCNOUTP

DESTBUSN

DESTELEN

CCN Output Point

Destination Bus Number

Destination Element Number

Temperature Sensor Grouping

Temperature Sensor Mode

Temperature Sensor Configuration

Broadcast Device ID

BRD_RECV

SENSCFG

BRDDEVID

801

Reset Minimum

Damper Position: Units

Range

→ Temp Sensor Grouping — Each ComfortID™ controller has

the capability to broadcast the associated space temperature

sensor’s data or listen to another controller’s sensor data over

the network. All controllers sharing the same sensor must be

installed on the same CCN bus.

0 to 99

Default Value

Reset Maximum

Damper Position: Units

Range

0 to 99

in. wg

0.0 to 5.0

0.0

There are three configuration decisions that must be config-

ured in order to share sensors. The Temp Sensor Mode is used

to specify if a controller will use its own local sensor, broadcast

its local sensor, or listed to another controller’s sensor broad-

cast. The Temp Sensor Config is used to specify if the control-

ler is sharging the space temperature information only or the

space temperature and temperature offset slidebar information.

The Broadcast Device ID decision is used to specify which

controller number a zone will listen for when configured to

receive another controller’s broadcast.

Default Value

Maximum Reset: Units

Range

Default Value

Static Pressure Reset

Variable Name: Units

Range

ASCII (8 characters)

A-Z,0-9

Default Value

Temp Sensor

Mode:

*To use Static Pressure Reset with a Comfort System

AirManager, configure the variable name to SPRESET.

Units

Range

none

1 = Local Sensor,

Currently, to make use of the static reset information, a cus-

tom program must be written in a Comfort Controller to read

the reset value and change the set point of the static pressure

control in the air source. Use this configuration to create a vari-

able name (Static Pressure Reset Value). See the application

manual for information about creating this custom program.

The Comfort System AirManager™ control has an internal

SPRESET variable which functions to accept the static pres-

sure reset value from the linkage coordinator (refer to the Air

Manager manual for configuration setup).

CCN Linkage Data — A zone controller configured as a

Linkage master has the ability to poll its slaves and collect the

high, low or average value of any variable within its slaves.

Once the high, low or average is determined, the master can

then transfer that value to a configured bus number, element

number and point name. Typically this feature is used to deter-

mine a system’s highest indoor air quality reading.

In order to utilize this feature the CCN Variable Name being

collected from the slaves must be supplied. The data transfer

rate must be specified and whether the high, low, or average

value is being determined. After the value has been deter-

mined, a valid point name and CCN address to transfer the

value to must be entered.

2 = Broadcast, 3 = Listen

Default Value

Temp Sensor

Config:

Units

none

Range

1 = SPT, 2 = SPT and

offset

Default Value

Broadcast

Device ID:

Units

None

1-239

Range

→

Default Value

OCCUPANCY CONFIGURATION SCREEN — The Oc-

cupancy Configuration screen is used to set the occupied

schedule. See Table 7.

Manual Override Hours — The Manual Override Hours deci-

sion is used to command a timed override by entering the num-

ber of hours the override will be in effect.

If the occupancy schedule is occupied when this number is

downloaded, the current occupancy period will be extended by

the number of hours downloaded.

If the current occupancy period is unoccupied when the oc-

cupancy override is initiated, the mode will change to occupied

for the duration of the number of hours downloaded.

If the occupancy override will end after the start of the next

occupancy period, the mode will transition from occupancy

override to occupied without becoming unoccupied, and the

occupancy override timer will be reset.

An active occupancy override or a pending occupancy over-

ride may be canceled by downloading a zero to this configura-

tion. Once a number other than zero has been downloaded to

this configuration any subsequent downloads of any value oth-

er than zero will be ignored by the zone controller.

CCN Variable

Name:

Units

Range

ASCII (8 Characters)

A-Z, 0-9

(blank)

Default Value

CCN Function

Config:

Units

Range

none

0 = none, 1 = average,

2 = low, 3 = high

Default Value

Data Transfer

Rate:

Units

Range

minutes

1-15

Manual Override

Hours:

Units

hours

0 to 4

Default Value

Range

Default Value

CCN Output

Point:

Units

Range

ASCII (8 Characters)

A-Z, 0-9

(blank)

Occupancy Scheduling — For flexibility of scheduling, the

occupancy programming is broken into eight separate periods.

For each period the scheduling, the active days of the week,

occupied start time, and occupied stop time needs to be

configured.

Day of Week — This configuration consists of eight fields

corresponding to the seven days of the week and a holiday

field in the following order: Monday, Tuesday, Wednesday,

Thursday, Friday, Saturday, Sunday, Holiday. A separate con-

figuration screen is used.

Default Value

Destination Bus

Number:

Units

Range

none

0-239

Default Value

Destination

Element Number: Units

Range

none

0-239 (0 = disabled)

Default Value

801

Table 7 — Occupancy Schedule Information Screen

DESCRIPTION

Manual Override Hours

DEFAULT

POINT NAME

OVRD

Period 1: Day of Week

Period 1: Occupied From

Period 1: Occupied To

Period 2: Day of Week

Period 2: Occupied From

Period 2: Occupied To

Period 3: Day of Week

Period 3: Occupied From

Period 3: Occupied To

Period 4: Day of Week

Period 4: Occupied From

Period 4: Occupied To

Period 5: Day of Week

Period 5: Occupied From

Period 5: Occupied To

Period 6: Day of Week

Period 6: Occupied From

Period 6: Occupied To

Period 7: Day of Week

Period 7: Occupied From

Period 7: Occupied To

Period 8: Day of Week

Period 8: Occupied From

Period 8: Occupied To

11111111

00:00

24:00

00000000

00:00

24:00

00000000

00:00

24:00

00000000

00:00

24:00

00000000

00:00

24:00

00000000

00:00

24:00

00000000

00:00

24:00

00000000

00:00

24:00

DOW1

OCC1

UNOCC1

DOW2

OCC2

UNOCC2

DOW3

OCC3

UNOCC3

DOW4

OCC4

UNOCC4

DOW5

OCC5

UNOCC5

DOW6

OCC6

UNOCC6

DOW7

OCC7

UNOCC7

DOW8

OCC8

UNOCC8

If a 1 is configured in the corresponding place for a certain

day of the week, the related “Occupied from” and “Occupied

to” times for that period will take effect on that day of the

week. If a 1 is placed in the holiday field the related times will

take effect on a day configured as a holiday. A zero means the

schedule period will not apply to that day.

Occupied Cool — The Occupied Cool set point is used to con-

figure the cooling set point for the zone controller during Occu-

pied mode.

Occupied Cool: Units

Range

F (C)

45.0 to 99.9

74.0

Default Value

Period (1-8):

Day of Week:

Unoccupied Heat — The Unoccupied Heat set point is used to

configure the heating set point for the zone controller during

Unoccupied mode.

Range

0 or 1

Default Values

11111111 for period 1,

00000000 for periods 2-8.

Unoccupied Heat: Units

Range

F (C)

40.0 to 90.0

55.0

Occupied From — This field is used to configure the hour and

minute, in military time, when the mode for the zone controller

becomes occupied.

Default Value

Unoccupied Cool — The Unoccupied Cool set point is used to

configure the cooling set point for the zone controller during

Unoccupied mode.

Period (1-8):

Occupied from: Units

Range

Hours: Minutes

00:00 to 24:00

00:00

Unoccupied Cool: Units

Range

F (C)

45.0 to 99.9

90.0

Default Value

Occupied To — This field is used to configure the hour and

minute, in military time, when the occupied mode for the zone

controller becomes unoccupied.

Default Value

→

Occupied High Humidity — The Occupied High Humidity

set point is used to configure the humidity set point for the zone

controller if optional zone humidity control (dehumidification)

is used.

Period (1-8):

Occupied from: Units

Range

Hours: Minutes

00:00 to 24:00

24:00

Occupied High Humidity: Units

Range

% Humidity

0.0 to 100.0

Default Value

SET POINT SCREEN — The Set Point screen is used to

modify the zone controller set points. See Table 8.

Occupied Heat — The Occupied Heat set point is used to con-

figure the heating set point for the zone controller during Occu-

pied mode.

Default Value 60.0

Unoccupied High Humidity — The unoccupied high humidi-

ty set point is used to configure the unoccupied humidity set

point for the zone controller if optional zone humidity control

(dehumidification) is used.

Occupied Heat: Units

Range

F (C)

40.0 to 90.0

70.0

Unoccupied

High Humidity: Units

Range

% humidity

0 to 100

100

Default Value

1001

Air Quality — The Air Quality set point is used to configure

the IAQ set point for the zone controller if optional controlled

ventilation support is used.

Cool Minimum (PI) — This configuration is the minimum

airflow the terminal will control to when the equipment is in

Cooling mode (or Fan Only mode) or free cooling. The space

requirements for cooling must be at a minimum, or the terminal

is a fan powered terminal and the space requirements are for

heat.

Air Quality

(ppm):

Units

none shown (ppm

implied)

0 to 5000

850

Range

Default Value

Cool Minimum: Units

Range

CFM

0 to 9999 (Limited by

Delta Airflow — The Delta Airflow set point is used to con-

figure the Delta Airflow set point for the zone controller if the

zone pressure control option is used. If a negative pressure is

desired, configure the value as a positive delta.

the High Velocity pressure limit alarm)

Default Value

Cool Maximum (PI) — This configuration is the maximum

airflow the terminal will control to when the equipment is in

Cooling mode (or Fan Only mode) or free cooling and the

space requirements for cooling are at a maximum.

Delta Airflow:

Units

cfm

-9999 to 9999

Range

Default Value

Cool Maximum: Units

Range

CFM

Service Configuration Selection Screen — The

Service Configuration Selection screen is a menu of Service

screens which can be accessed by the user. The following

screens are available: Airflow Service Configuration, Terminal

Service Configuration, Option Service Configuration, and Sec-

ondary Damper Service Configuration.

AIRFLOW SERVICE CONFIGURATION SCREEN —

The Airflow Service Configuration Table is used to configure

the pressure independent and backup pressure dependent set

points. See Table 9.

0 to 9999 (Limited by

the High Velocity pressure limit alarm)

Default Value

4000

Terminal Reheat (PI) — This configuration is for single duct

units with ducted reheat. The desired airflow is configured at

which the reheat will provide optimum performance. This val-

ue is compared to the Minimum Cool value and the greater of

the two values is used to determine the airflow set point.

Terminal Reheat: Units

Range

CFM

0 to 9999 (Limited by

Pressure Independent — Pressure Independent (PI) set points

should be configured for pressure independent operation

applications.

the High Velocity pressure limit alarm)

Default Value

→ Table 8 — Set Point Screen

DESCRIPTION

DEFAULT

POINT NAME

Set Points

Occupied Heat

Occupied Cool

70.0 F

74.0 F

55.0 F

90.0 F

60.0 %

100 %

850 ppm

0 cfm

OHSP

OCSP

UHSP

UCSP

ORHH

URHH

AQSP

DCFM

Unoccupied Heat

Unoccupied Cool

Occupied HIgh Humidity

Unoccupied High Humidity

Air Quality (ppm)

Delta Airflow

Table 9 — Airflow Service Configuration Screen

DESCRIPTION

Pressure Independent

Cool Minimum

Cool Maximum

Terminal Reheat

DEFAULT

POINT NAME

0 cfm

4000 cfm

0 cfm

COOLMIN

COOLMAX

REHEAT

Heat Minimum

0 cfm

HEATMIN

Heat Maximum

Parallel Fan On

4000 cfm

0 cfm

4000 cfm

HEATMAX

FNONCFM

DDCVFLOW

Dual Duct CV Airflow

Pressure Dependent

Cool Minimum Position

Cool Maximum Position

Reheat Minimum Position

Heat Minimum Positon

Heat Maximum Position

Deadband Percent

0 %

100 %

0 %

100 %

12.5 %

CMINPOS

CMAXPOS

REMINPOS

HMINPOS

HMAXPOS

DB_PCT

1001

Heat Minimum (PI) — This configuration is the minimum

airflow the terminal will control to when the equipment mode

is Warm-Up or Heat. If the terminal is not configured for VAV

central heating this is the only airflow the terminal will control

to for these equipment modes.

Reheat Minimum Position (PD) — This configuration is for

single duct units with ducted reheat. Configure the desired

damper position at which the reheat will provide optimum per-

formance. This value is compared to the Minimum Cool value

and the greater of the two values is used to determine the

damper position.

Heat Minimum: Units

Range

CFM

0 to 9999 (Limited by

Reheat Minimum

Position:

the High Velocity pressure limit alarm)

Units

0 to 100

Default Value

Range

Default Value

Heat Maximum (PI) — This configuration is used to config-

ure the maximum airflow at which the zone controller will op-

erate if VAV central heat is configured to yes. If the equipment

mode is heat or warm-up, and the demand in the space is for

heat, the zone controller will calculate the proper airflow need-

ed to achieve space temperature set point (operating between

the Heat Min and Heat Max).

Heat Minimum Position (PD) — This configuration is the

Minimum damper position the terminal will control to when

the equipment mode is Warm-Up or Heat. If the terminal is not

configured for VAV central heating this is the only position the

terminal will control to for these equipment modes.

Heat Minimum

Position:

Heat Maximum: Units

Range

CFM

Units

0 to 100

0 to 9999 (Limited by

Range

the High Velocity pressure limit alarm)

Default Value

4000

Heat Maximum Position (PD) — This configuration is used

to configure the maximum damper position at which the zone

controller will operate if VAV central heat is configured to yes.

If the equipment mode is Heat or Warm-Up and the demand in

the space is for heat the zone controller will calculate the prop-

er damper position needed to achieve space temperature set

point, operating between the Heat Min and Heat Max.

Parallel Fan On (PI) — This configuration is used to define

the primary airflow setting below which a parallel fan terminal

should energize its fan. The setting should be used to allow a

low volume of primary airflow to be better diffused into the

space.

Parallel Fan On: Units

Range

CFM

0 to 9999 (Limited by

Heat Maximum

Position:

the High Velocity pressure limit alarm)

Units

0 to 100

100

Default Value

Range

Default Value

Dual Duct CV Airflow (PI) — This configuration defines the

Dual Duct, constant volume, total airflow set point.

Deadband Percent — This configuration is used to configure

the Deadband Percent that the airflow will operate with.

Dual Duct

Airflow:

Units

CFM

Deadband

Percent:

Range

0 to 9999 (Limited by

Units

the High Velocity pressure limit alarm)

Default Value

Range

0.0 to 100.0

12.5

4000

Default Value

Pressure Dependent — Pressure Dependent (PD) set points

should be configured for backup pressure dependent operation,

if an operating problem with the pressure transducer occurs.

TERMINAL SERVICE CONFIGURATION SCREEN —

The Terminal Service Configuration screen lists the main con-

figuration settings for the air terminal controller. See Table 10.

Terminal Type — This configuration is used to indicate the

terminal type that the zone controller is installed on. A 1 is for

Single Duct terminals, a 2 is for Parallel Fan terminals, a 3 is

for Series Fan terminals, and a 4 is for Dual Duct applications.

IMPORTANT: Pressure dependent settings are

included for use only in the event of a pressure trans-

ducer failure. The inclusion of these configuration set-

tings does not indicate that Carrier is endorsing this

product for pressure dependent operation. In the case

of a pressure sensor failure, the zone controller will

broadcast a pressure sensor failure message on the

CCN bus. These configurations may be used by a ser-

vice technician to put the terminal in pressure depen-

dent mode until the zone controller can be replaced.

Terminal Type: Range

Default Value

1 to 4

Primary Inlet Size — The Primary Inlet Size configuration is

used to input the inlet diameter of the terminal if used with a

round inlet. The Inlet Area configuration is used for oval or

rectangular inlets. The zone controller will use the larger value

for CFM calculations if both values are configured.

Cool Minimum Position (PD) — This configuration is the

minimum damper position the terminal will control to when

the equipment mode is Cooling (or Fan Only), or free cooling

and the space requirements for cooling are at a minimum.

NOTE: Carrier sizes 12, 14, and 16 are oval.

Primary Inlet Size

(Inlet Diameter): Units

Range

Inches

3.0 to 24.0

6.0

Cool Minimum

Position:

Default Value

Units

0 to 100

Inlet Area — The Inlet Area configuration is used if the termi-

nal has an oval or rectangular inlet. The Primary Inlet Size

configuration is used for round inlets. The zone controller will

use the larger value for CFM calculations if both values are

configured.

Range

Default Value

Cool Maximum Position (PD) — This configuration is the

maximum damper position the terminal will control to when

the equipment mode is cooling (or fan only), or free cooling

and the space requirements for cooling are at a maximum.

Inlet Area:

Units

Square Inches

0.0 to 500.0

0.0

Range

Default Value

Cool Maximum

Position:

Units

0 to 100

100

Range

Default Value

Table 10 — Terminal Service Configuration Screen

DESCRIPTION

DEFAULT

POINT NAME

COOLING

Terminal Type

TERMTYPE

Primary Inlet Size

Inlet Diameter

Inlet Area

6.0 in.

0.0 in.

RNDSZ

SQA

Probe Multiplier

Calibration Gain

Offset

2.443

1.000

0 cfm

PMF

CAL_GAIN

OFFSET

Damper

Proportional Gain

Integral Gain

Derivative Gain

Starting Value

30.0

5.0

0.0

20 %

STARTVAL

CW Rotation

Pressure Independent

HEATING

Yes

DMPDIR

PRESIN D

Heat Type

VAV Central Heating

Yes

HEATTYPE

CENHEAT

Heating

Proportional Gain

Integral Gain

Derivative Gain

Starting Value

8.0

3.0

0.0

80 F

STARTVAL

Ducted Heat

Yes

110 F

Normal

0.0 F

DUCTHEAT

MAXTEMP

STAGES

HONDEL

FNOFFD

HEATYPE

SPTTRIM

SATTRIM

RMTCFG

Maximum Temperature

Number of Electric Heat Stages

Heat On Delay

Fan Off Delay

2-Position Heat Logic

SPT Trim

SAT Trim

Remote Contact Configuration

→ Probe Multiplier — This configuration is used to input a factor

for the velocity pressure probe installed in the terminal inlet.

Most inlet probes will have some aerodynamic characteristics

that will affect the differential pressure output from the probe.

The formula used by the ComfortID™ controller for calculat-

ing the airflow (cfm) is based on measuring velocity with a

Pitot tube probe. A PMF (Pitot measurement factor) is required

in the calculation for different probes. Because various probe

characteristics are different, the PMF is used to determine the

correct airflow based on the type of probe installed. The PMF

will compensate for the difference between Pitot-type probes

and the actual probe installed.

that gives an airflow value of 820 cfm at a velocity pressure

reading of 1 in. wg. To determine the PMF for the terminal:

1. Determine duct area.

radius of duct = diameter of duct/2

radius = 8-in./2-in.

radius = 4-in.

Area of circular duct = Πr²

Area = 3.14159 x 4²

Area = 3.14159 x 16

Area = 50.26-in.²

Area must be in ft²

50.26-in.²/(144-ft²) = 0.34906 ft²

The default PMF value of 2.273 is the correct value to use

when the zone controller is used with a Carrier probe in a

Carrier air terminal. For terminals and probes supplied by other

manufacturers, the PMF must be calculated and entered into

the zone controller configuration in order to correctly measure

airflow.

2. Determine K factor.

K factor = (820 cfm/0.34906 ft²)

K factor = 2349 fpm

3. Determine PMF.

PMF = (4005 fpm/2349 fpm)²

PMF = 2.907

To determine the correct PMF value, there are several meth-

ods depending on the data supplied by the terminal manufac-

turer. The manufacturer may supply a “K factor” or may sup-

ply a chart of velocity pressure vs. airflow for the terminal. The

K factor is the actual airflow velocity at a velocity pressure

reading of 1 in. wg for the probe. This value is in ft/min and

can be used to calculate the PMF. When the K factor is entered

into the following equation, it is compared to the value of 4005,

which is the K factor for a Pitot tube probe:

PMF = (4005/K FACTOR)²

If a chart is supplied by the manufacturer instead of the K

factor, then the K factor can be calculated from the chart using

the following formula:

Another way to determine the probe constant for a probe

without documentation is to measure the velocity pressure with

a Magnahelic gage. Open the damper and adjust the static pres-

sure or open the damper until you have one inch of velocity

pressure on the Magnahelic gage. Measure the total CFM of air

being delivered. The CFM just measured divided by the inlet

area in square feet should equal the K factor for the formula.

Now use the K factor that was empirically derived to determine

the probe multiplier.

Probe Multiplier: Range

Default Value

0.250 to 9.999

2.443

Calibration Gain — Air terminal testing by industry standards

is done with straight duct, upstream of the terminal. Since some

applications do not get installed in this manner, the actual air-

flow from the terminal at balancing may not equal the reading

from the zone controller.

K FACTOR = (cfm at 1-in. wg)/(duct area ft²)

As an example, an air terminal with an 8-in. round inlet is

used. The terminal manufacturer has provided an airflow chart

303

The calibration gain is used for the fine tuning adjustments

which might need to be made to the airflow calculation. This

number is calculated automatically by the zone controller after

input to the air balance maintenance screen, or it can be input

manually at this screen. For ease of use it is recommended to

use the Air Balance Maintenance screen to determine this num-

ber. The Air Balancing Maintenance screen will cause the val-

ue to be updated during the balancing procedure.

If the Calibration Gain must be configured manually, it is

determined as a percentage up or down that the CFM indicated

will be offset. A number of .95 will cause the maximum air-

flow calculated to be reduced to 95% of the value. A Calibra-

tion Gain of 1.00 will cause no change. A number of 1.05

would cause readings to become 5% higher.

The Calibration Gain is adjusted on the Air Balance Mainte-

nance screen when performing the Maximum Airflow calibra-

tion and will have the greatest effect on the airflow at maxi-

mum CFM. Any error in reading at minimum airflow is adjust-

ed by calculating the Offset configuration value. After

performing the air balance using the Air Balance Maintenance

screen it is a good idea to upload and save the Calibration Gain

and Offset values.

Start Value:

Units

0 to 100

Range

Default Value

Clockwise Rotation — This configuration is used to define

what effect a clockwise rotation of the actuator will have on the

damper. If the actuator rotates clockwise to closed position, the

configuration should be set to Close. If the actuator rotates

clockwise to open, the configuration should be set to open.

This configuration is used to change the rotation of the actuator

so that the damper transducer calibration will work properly.

The actuator does not have to be re-installed nor any switches

changed to reverse the action.

Clockwise

Rotation:

Range

Default Value

Close/Open

Pressure Independent — This configuration defines if the ter-

minal will function in the pressure independent or pressure de-

pendent mode.

NOTE: Pressure dependent mode should only be used in an

emergency, if the pressure sensor is not functioning.

Pressure

Independent:

Range

Default Value

No/Yes

Yes

Calibration Gain: Range

Default Value

0.000 to 9.999

1.000

→

Heat Type — This configuration is used to define the type of

heat installed on the terminal. A 0 is equal to None. A 1 is

equal to Modulating/VAV. A 2 is equal to Two Position. A 3 is

equal to staged Electric. A 4 is equal to Modulating/CV.

Offset — The Offset configuration is included for precision

applications where the minimum airflow is critical and not ze-

ro. This configuration indicates the amount of CFM the trans-

ducer is off by, at minimum airflow, during the minimum air-

flow test on the air balance screen. This configuration should

not be used to zero the airflow transducer since an auto zero

test is included on the air balance screen and is also automati-

cally performed each time the equipment fan is disabled (or

every 72 hours for systems which run the fan continuously).

After performing the air balance testing using the Air Balance

Maintenance screen it is a good idea to upload and save the

Calibration gain and Offset values. The cfm will be offset by

the value entered in the Minimum Cfm variable and will zero

at the value entered in the Maximum Cfm variable. There will

be a linear relationship between the two set points.

Heat Type:

Range

Default Value

0 to 4

VAV Central Heating — The VAV Central Heating configura-

tion is used if the air source has the ability to provide heat and

the terminal is required to modulate, using the heat minimum

and heat maximum airflows, when the air source is in the heat

mode. If this variable is set to No, the terminal will use its

available local heat to heat the zone at all times.

VAV Central

Heating:

Range

Default Value

No/Yes

Yes

Offset:

Units

cfm

-250 to 250

Heating Loop Parameters — The heating loop gains and start

value define how the terminal will respond to deviations in

measured space temperature in order to control to the heat set

point.

The Proportional Gain is calculated each time the space

temperature is compared to the heat set point. As the error

from set point goes to zero, the Proportional Gain will also go

to zero.

The Integral Gain is a running summation of all integral

terms since the loop started. This has the affect of trimming off

any offset from set point which might occur if only the Propor-

tional Gain existed. Normally a proportional loop with no Inte-

gral Gain would require frequent adjustments of the starting

value to eliminate the offset as loading conditions on the room

change.

The Derivative Gain is not needed. This term tends to nulli-

fy large changes in the Proportional Gain for dampened

response.

Range

Default Value

Damper Loop Parameters — The loop gains and start value

define how the terminal will respond to deviations in measured

CFM in order to control to the airflow set point.

The Proportional Gain is calculated each time the airflow is

compared to the active airflow set point. As the error from set

point goes to zero, the proportional term will also go to zero.

The Integral Gain is a running summation of all integral

terms since the loop started. This has the effect of trimming off

any offset from the set point which might occur, if only the pro-

portional term existed. Normally a proportional loop with no

integral term would require frequent adjustments of the starting

value to eliminate the offset as static pressure and other condi-

tions change.

The Derivative Gain is not needed. The Derivative Gain

would tend to nullify large changes in the Proportional Gain for

dampened response. These large changes in the Proportional

Gain do not tend to happen for this type of control.

Heating Loop Parameters

Proportional Gain: Range

00.0 to 99.9

8.0

Damper Loop Parameters

Default Value

Proportional Gain:Range

00.0 to 99.9

30.0

Default Value

Integral Gain:

Range

Default Value

00.0 to 99.0

3.0

Integral Gain:

Range

Default Value

00.0 to 99.0

5.0

Derivative Gain: Range

00.0

0.0

Default Value

Derivative Gain: Range

00.0

0.0

Default Value

801

Start Value:

Units

F (C)

40 to 125

Space Temperature Trim — This configuration is used to trim

a space sensor which might need calibration. For example, if

the temperature displayed is two degrees above the value mea-

sured with calibrated test equipment, input a value of –2.0.

Range

Default Value

Ducted Heat — The Ducted Heat configuration is used to con-

figure the terminal for ducted heat. If a local heat source is in

the duct and requires airflow to provide heat, set the Ducted

Heat configuration for yes.

Space Temperature

Trim:

Units

delta F (delta C)

–9.9 to 9.9

0.0

Range

Default Value

Ducted Heat

Range

Default Value

No/Yes

Yes

Supply Air Temperature Trim — This configuration is used

to trim a supply air sensor which might need calibration. For

example, if the temperature displayed is two degrees above the

value measured with calibrated test equipment, input a value of

–2.0.

Maximum Duct Temperature — This configuration is used to

configure the maximum supply-air temperature desirable for

heating the space. This will cause the heat to be modulated or

cycled using this value as the maximum temperature of the air

to be supplied.

Maximum Duct

Temperature:

Supply Air Temperature

Trim:

Units

delta F (delta C)

–9.9 to 9.9

0.0

Range

Default Value

Units

Range

Default Value

F (C)

40 to 200

110

Remote Contact Config — The remote timeclock contact in-

put can be configured as a normally open or normally closed

contact. When the timeclock input is ‘On’ the zone will follow

it’s local occupancy schedule. When the timeclock input is

‘Off’ the zone will be forced into unoccupied state.

→

Number of Electric Stages — This configuration is used to

define the number of stages of electric heat controlled by the

zone controller.

Number of

Electric Stages: Range

Remote Contact

Config:

1 to 3

Range

Default Value

Close/Open

Default Value

Heat On Delay — The Heat On Delay configuration is used to

define a delay from the time a parallel terminal fan is started

until the heat is activated.

Heat On Delay: Units

Range

OPTIONS SERVICE CONFIGURATION SCREEN —

The Options Service Configuration screen is used to configure

the service options of the air terminal controller. See Table 11.

Occupancy Schedule Number — The Occupancy Schedule

Number defines what Occupancy schedule the zone controller

will use. Occupancy Schedule 64 is a local schedule. Occupan-

cy Schedules 65 to 99 are global schedules.

minutes

1 to 60

Default Value

Fan Off Delay — The Fan Off Delay configuration is used to

define a delay time. The delay time is from when the heat is de-

activated (in a parallel terminal) until the parallel fan is deacti-

vated. This allows the fan to circulate air and remove the resid-

ual heat from the heat source.

Occupancy Schedule

Number:

Range

64 to 99

Default Value

Global Schedule Master — The Global Schedule Master con-

figuration allows the Occupancy Schedule to be used as a Glo-

bal Schedule Master (Occupancy Schedules 65-99).

Fan Off Delay: Units

Range

minutes

1 to 15

Default Value

Global Schedule

Two-Position Heat Logic — This configuration is used for

controlling a normally closed or normally open valve for hot

water. Use normal logic if the valve is normally closed. Use in-

verted logic if the valve is normally open.

Master:

Range

No/Yes

Default Value

Two Position

Heat Logic:

Range

Default Value

Normal/Invert

Normal

Table 11 — Options Service Configuration Screen

DESCRIPTION

DEFAULT

POINT NAME

SCH

Occupancy Schedule Number

Global Schedule Master

Override

Broadcast Acknowledge

Set Point Group Number

Global Set Point Master

Maximum Offset Adjust

Control Options

00:00

2 F

GSM

OVR

BCACK

SETT

GSTM

LIMT

CTLOPT

Humidity

Proportional Gain

Integral Gain

1.5

0.30

100.0 cfm

MAXOUT

Maximum Output Value

Air Quality

Proportional Gain

Integral Gain

0.10

0.03

100.0 cfm

MAXOUT

Maximum Output Value

AQ Low Voltage

0.0

10.0

0 ppm

2000 ppm

AQINLO

AQINHI

AQLO

AQ High Voltage

AQ Low Reference

AQ High Reference

AQHI

801

Override — The Override parameter is used to configure the

number of hours and minutes the override will be in effect. The

user initiates override by pressing the override button on the

space temperature sensor. This will cause the schedule to enter

into the Occupied mode. If global scheduling is used, all zones

using the global schedule will enter Occupied mode. Pushing

the override button during Occupied mode will have no effect.

Integral Gain:

Range

0.00 to 9.99

0.30

Default Value

Maximum Output

Value:

Range

0.0 to 100.0% (max cool

cfm)

100.0

Default Value

If the occupancy override is due to end after the start of the

next occupancy period, the mode will transition from occupan-

cy override to occupied without becoming unoccupied, and the

occupancy override timer will be reset.

NOTE: If using the tenant billing function, the override

hours set point must be configured between 1 and 3 hours.

Indoor Air Quality Control — These configuration values de-

fine the calculation parameters for determining the airflow

needed to correct a high incidence of air pollution contami-

nants in the space, such as CO₂. The Maximum Output Value is

measured in percentage of nominal terminal cfm.

Proportional Gain:Range

Default Value

0.00 to 9.99

0.10

Override:

Units

Hours: Minutes

00:00 to 24:00

00:00

Range

Integral Gain:

Range

Default Value

0.00 to 9.99

0.03

Default Value

Broadcast Acknowledger — This configuration defines if the

zone controller will be used to acknowledge broadcast messag-

es on the CCN bus. One broadcast acknowledger is required

per bus, including secondary busses created by the use of a

bridge.

Maximum Output

Value:

Range

0.0 to 100.0% (max cool

cfm)

Default Value

100.0

→ IAQ Sensor Low Voltage — This configuration defines the

lowest voltage which should be read from the air quality

sensor.

Broadcast

Acknowledger: Range

No/Yes

Default Value

IAQ Sensor

Set Point Group Number — The Set Point Group Number is

used to define the current zone controller as a part of a group of

zone controllers which share the same set points. All zone con-

trollers with the same Set Point Group Number will have the

same set points. The set points are broadcast to the group by the

zone controller defined by the Global Set Point Master config-

uration. A value of 0 is a local schedule. Values 1 to 16 are used

for global scheduling.

Low Voltage:

Range

00.0 to 10.0

0.0

Default Value

IAQ Sensor High Voltage — This configuration defines the

highest voltage which should be read from the air quality sen-

sor.

IAQ Sensor

High Voltage:

Range

Default Value

00.0 to 10.0

10.0

Set Point

Group Number: Range

0 to 16

IAQ Low Reference — This configuration defines the value

in parts per million which correlate to the low voltage reading

from the air quality sensor.

IAQ Low

Reference:

Default Value

Global Set Point Master — This configuration defines if the

current zone controller will broadcast its set point values to the

other zone controllers which are made part of the same group

by configuring the Set Point Group Number.

Units

Range

Default Value

ppm (parts per million)

0 to 5000

Global Set Point

Master:

Range

Default Value

No/Yes

IAQ High Reference — This configuration defines the value

in parts per million which correlate to the high voltage reading

from the air quality sensor.

IAQ High

Reference:

Maximum Offset Adjustment — This configuration deter-

mines the maximum amount that the set point will be biased

(up or down), by adjusting the slide bar on the space tempera-

ture sensor (if installed).

Units

Range

Default Value

ppm (parts per million)

0 to 5000

2000

Maximum Offset

Adjustment:

Units

delta F (delta C)

0 to 15

Range

SECONDARY DAMPER SERVICE CONFIGURATION

SCREEN — The Secondary Damper Service Configuration

screen is used to configure the secondary damper settings. See

Table 12.

Zone Pressure Control — The Zone Pressure Control config-

uration determines whether the primary and secondary control-

lers will be configured for zone pressure control.

Default Value

Control Options — The Control Options configuration deter-

mines whether the zone controller will use a humidity sensor or

an indoor air quality sensor. A configuration of 0 means no

sensors are used. A configuration of 1 means a Humidity Sen-

sor is used. A configuration of 2 means an IAQ Sensor is used.

Control Options: Range

Default Value

Humidity Control — These configuration values define the

calculation parameters for determining the airflow needed to

correct a high humidity problem in the space. The Maximum

Output Value is measured in percentage of nominal terminal

cfm.

0 to 2

Zone Pressure

Control:

Range

Default Value

Dsable/Enable

Dsable

Dual Duct Type — The Dual Duct Type setting configures the

secondary controller for the correct dual duct type. A value of 0

configures the type to None. A value of 1 configures the type to

Second Inlet (Hot Deck). A value of 2 configures the duct to

Total Probe (terminal outlet).

Dual Duct Type: Range

Default Value

Proportional

Gain:

Range

0.0 to 9.9

1.5

0 to 2

Default Value

800

Table 12 — Secondary Damper Service Configuration Screen

DESCRIPTION

Zone Pressure Control

Dual Duct Type

DEFAULT

Dsable

POINT NAME

ZPCNTL

DDTYPE

Secondary Duct Size

Inlet Diameter

Inlet Area

6.0 in.

0.0 sq. in.

SRNDSZ

SSQA

Probe Multiplier

Calibration Gain

Offset

2.443

1.000

0 cfm

SPMF

CAL_GAIN

SOFFSET

DMPDIR

CW Rotation

Secondary Duct Size — The Secondary Duct Size setting is

used to input the inlet diameter of the terminal, if used with a

round inlet. The Inlet Area configuration is used for oval or

rectangular inlets. The zone controller will use the larger value

for CFM calculations if both values are configured.

will be offset. A number of .95 will cause the maximum air-

flow calculated to be reduced to 95% of the value. A Calibra-

tion Gain of 1.00 will cause no change. A number of 1.05

would cause readings to become 5% higher.

Any error in reading at minimum airflow is adjusted by cal-

culating the Offset configuration value.

Secondary Duct Size

(Inlet Diameter): Units

Range

Inches

3.0 to 24.0

6.0

Calibration Gain: Range

Default Value

0.000 to 9.999

1.000

Default Value

Offset — The Offset configuration is included for precision

applications where the minimum airflow is critical and not

zero. The cfm will be offset by the value entered in the Mini-

mum Cfm variable and will zero at the value entered in the

Maximum Cfm variable. There will be a linear relationship be-

tween the two set points.

Inlet Area — The Inlet Area configuration is used if the termi-

nal has an oval or rectangular inlet. The Primary Inlet Size

configuration is used for round inlets. The zone controller will

use the larger value for CFM calculations if both values are

configured.

Inlet Area:

Units

Square Inches

0.0 to 500.0

0.0

Offset:

Units

cfm

Range

–250 to 250

Default Value

Probe Multiplier — This configuration is used to input a fac-

tor for the velocity pressure probe characteristics installed in

the inlet. All averaging probes will have some aerodynamic

characteristics which will amplify the pressure difference read

at the inlet of the terminal. The default of 2.443 is the correct

value to use if the probe is a Carrier probe in a 35 or 45 Series

terminal.

Clockwise Rotation — This configuration is used to define

what effect a clockwise rotation of the actuator will have on the

damper. If the actuator rotates clockwise to closed position, the

configuration should be set to Close. If the actuator rotates

clockwise to open, the configuration should be set to open.

This configuration is used to change the rotation of the actuator

so that the damper transducer calibration will work properly.

The actuator does not have to be reinstalled nor any switches

changed to reverse the action.

The formula for calculating velocity using an Ideal probe is:

Velocity = 4005* SQRT (Velocity Pressure)

Most manufactures will provide a probe constant for the

probe supplied. For example, Velocity = 2213*SQRT(Velocity

Pressure). To calculate the number to input in this decision

(Probe Multiplier) use the formula. (4005/2213)²= 3.3. So you

would use 3.3 in place of 2.443 for a probe with a probe con-

stant of 2213.

An easy way to determine the probe constant for a probe

without documentation is to measure the velocity pressure with

a Magnahelic gage. Open the damper and adjust the static pres-

sure until you have one inch of velocity pressure on the Magna-

helic gage. Measure the total CFM of air being produced. The

CFM just measured divided by the inlet area in feet should

equal the probe constant for the formula. Velocity = (CFM just

measured/inlet area) * SQRT (1.0). Now use the constant that

was empirically derived to determine the probe multiplier

(4005/(CFM at 1.0 Inch/Inlet area))²= Probe Multiplier.

Clockwise

Rotation:

Range

Close/Open

Default Value

Maintenance Table Menu Screen — The Mainte-

nance Table Menu screen allows the user to select one of 4

available maintenance tables: the Linkage Maintenance Table,

the Occupancy Maintenance Table, the Zone Air Balance

Table, and the Zone Maintenance Table.

LINKAGE MAINTENANCE TABLE — The Linkage

Maintenance table is used to view the zone linkage variables.

See Table 13.

Air Source Bus Number — This variable will display the bus

number of the air source that the zone controller will be com-

municating Linkage to, if this zone is the Linkage Master.

Air Source

Bus Number:

→

Range

Default Value

Network Access None

0 to 239

Probe Multiplier: Range

Default Value

0.250 to 9.999

2.443

Calibration Gain — Air terminal testing by industry standards

is done with straight duct, upstream of the terminal. Since most

applications do not get installed in this manner, the actual air-

flow from the terminal at balancing may not equal the reading

from the zone controller.

Air Source Element Number — This variable will display the

Element Address of the Air Source that the zone controller

will be communicating Linkage to, if this zone is the Linkage

Master.

Air Source

Element Number: Display Range

Default Value

The calibration gain is used for the fine tuning adjustments

which might need to be made to the airflow calculation.

If the Calibration Gain must be configured manually. It is

determined as a percentage up or down that the CFM indicated

1 to 239

Network Access None

501

Master Zone Element Number — This variable will display

Average Unoccupied Cool Set Point — This variable dis-

plays the weighted average of the unoccupied cool set point,

calculated by the linkage coordinator, from the information re-

ceived from polling its associated zones. The set points are

weighted by the maximum airflow capacities of the zone con-

trollers scanned by the linkage coordinator.

the element address of the zone which is the Linkage Master.

Master Zone

Element Number: Display Range

Default Value

1 to 239

Network Access Read only

Average Occupied

Operating Mode — This variable will display the current op-

erating mode of the air source, if Linkage is available, or the

mode determined by the Linkage Master using the primary air

sensor, if available. If the primary air sensor has failed or was

not installed, the Linkage master will assume the default mode

of cooling.

Cool Set Point: Display Units

Display Range

F (C)

0.0 to 99.9

0.0

Default Value

Network Access None

Average Zone Temperature — This variable displays the

weighted average of the space temperatures, collected by the

linkage coordinator, from polling its associated zones. The

temperatures are weighted by the maximum airflow capacities

of the zone controllers scanned by the linkage coordinator.

Operating Mode: Display Range

COOLING, HEATING,

WARM-UP, FREECOOL, PRESSURE,

EVAC, OFF

Default Value

OFF

Average Zone

Temperature:

Network Access Read only

Display Units

Display Range

Default Value

F (C)

0.0 to 99.9

0.0

Air Source Supply Temperature — This variable displays the

supply temperature reading of the air source.

Air Source Supply

Temperature:

Network Access Read Only

Units

F (C)

-40 to 245

Average Occupied Zone Temperature — This variable dis-

plays the weighted average of the space temperatures of occu-

pied zones, collected by the linkage coordinator, from polling

its associated zones. The temperatures are weighted by the

maximum airflow capacities of the zone controllers scanned by

the linkage coordinator.

Display Range

Default Value

Network Access None

Start Bias Time — This variable displays the Start Bias Time,

in minutes, calculated by the air source. The Start Bias Time is

calculated to bring the temperature up or down to the set point

under the optimum start routine. This value will be sent to all

associated zones for optimum start of zone controllers. This

function is supported by all Carrier equipment which perform

linkage.

Average Occupied

Zone Temperature:Display Units

Display Range

F (C)

0.0 to 99.9

0.0

Default Value

Network Access Read Only

Start Bias Time: Display Units

Display range

minutes

0 to 185

→

Composite CCN Value — This variable displays the high, low

or average of the CCN variable collected from each zone as

configured in the Linkage Coordinator Configuration Screen.

The value is sent to the CCN address and variable specified

within that configuration table.

Default Value

Network Access None

Average Occupied Heat Set Point — This variable displays

the weighted average of the occupied heat set point, calculated

by the linkage coordinator, from the information received from

polling its associated zones. The set points are weighted by the

maximum airflow capacities of the zone controllers scanned by

the linkage coordinator.

Composite

CCN Value:

Display Range

Default Value

0-65535

Network Access Read Only

Occupancy Status — This variable displays a “1” when at

least one of the associated zone controllers (that are being

scanned) is in the occupied mode.

Average Occupied

Heat Set Point: Display Units

Display Range

F (C)

0.0 to 99.9

0.0

Occupancy Status:Display Range

Default Value

0 or 1 (1 = occupied)

Default Value

Network Access None

Network Access Read only

Average Occupied Cool Set Point — This variable displays

the weighted average of the occupied cool set point, calculated

by the linkage coordinator, from the information received from

polling its associated zones. The set points are weighted by the

maximum airflow capacities of the zone controllers scanned by

the linkage coordinator.

Next Occupied Day — This variable displays the day when

the next associated zone is scheduled to change from unoccu-

pied to occupied mode. This point is read in conjunction with

the next occupied time to allow the user to know the next time

and day when a zone will become occupied.

Next Occupied

Day:

Average Occupied

Cool Set Point: Display Units

Display Range

Default Value

MON, TUE, WED,

THU, FRI, SAT, SUN

No display (Blank)

F (C)

0.0 to 99.9

0.0

Default Value

Network Access None

Next Occupied Time — This variable displays the time of day

when the next associated zone is scheduled to change from un-

occupied to occupied mode. This point is read in conjunction

with the next occupied day to allow the user to know the next

time and day when a zone will become occupied.

Average Unoccupied Heat Set Point —This variable displays

the weighted average of the unoccupied heat set point, calculat-

ed by the linkage coordinator, from the information received

from polling its associated zones. The set points are weighted

by the maximum airflow capacities of the zone controllers

scanned by the linkage coordinator.

Next Occupied

Time:

Display Range

Default Value

00:00 to 24:00

0:00

Average Unoccupied

Heat Set Point: Display Units

Display Range

F (C)

0.0 to 99.9

0.0

Network Access None

Default Value

Network Access None

801

→ Table 13 — Linkage Maintenance Screen

DESCRIPTION

Air Source Bus Number

Air Source Element Number

Master Zone Element Number

Operating Mode

DEFAULT

POINT NAME

ASBUSNUM

ASDEVADR

MZDEVADR

ASOPMODE

ASTEMP

STRTBIAS

AOHS

OFF

0 F

Air Source Supply Temperature

Start Bias Time

0 minutes

0.0 F

Average Occupied Heat Set Point

Average Occupied Cool Set Point

Average Unoccupied Heat Set Point

Average Unoccupied Cool Set Point

Average Zone Temperature

Average Occupied Zone Temperature

Composite CCN Value

Occupancy Status

Next Occupied Day

Next Occupied Time

Next Unoccupied Day

0.0 F

AOCS

AUHS

0.0 F

AUCS

AZT

0.0 F

AOZT

CCCNVAL

OCCSTAT

NXTOCCD

NXTOCCT

NXTUNOD

NXTUNOT

PREVUNOD

PRVUNOT

MAXDMPOS

PRESVAL

PRESDECR

PRESINCR

(blank)

00:00

(blank)

00:00

(blank)

00:00

0.0 %

0.0 in. wg

0.000 in. wg

Next Unoccupied Time

Previous Unoccupied Day

Previous Unoccupied Time

Maximum Damper Position

Static Pressure Reset

Pressure Decrease Value

Pressure Increase Value

Next Unoccupied Day — This variable displays the day when

the next associated zone is scheduled to change from occupied

to unoccupied mode. This point is read in conjunction with the

next unoccupied time to allow the user to know the next time

and day when a zone will become unoccupied.

Maximum Damper Position — This variable displays the

damper position of the zone controller in the system with the

damper in the most open position. This is used by the linkage

coordinator to calculate the static pressure reset.

Maximum Damper

Next Unoccupied

Day:

Position:

Display Units

Display Range

Default Value

% (open)

0.0 to 100.0

0.0

Display Range

Default Value

MON, TUE, WED,

THU, FRI, SAT, SUN

No display (Blank)

Network Access Read/Write

Network Access None

Static Pressure Reset — This variable displays the current

static pressure reset calculated, using the maximum damper po-

sition and the configuration information from the linkage con-

figuration table.

Next Unoccupied Time — This variable displays the time of

day when the next associated zone is scheduled to change from

occupied to unoccupied mode. This point is read in conjunction

with the next unoccupied day to allow the user to know the

next time and day when a zone will become unoccupied.

Static Pressure

Reset:

Display Units

Display Range

Default Value

in. wg

0.0 to 5.0

0.0

Next Unoccupied

Time:

Display Range

Default Value

00:00 to 24:00

0:00

Network Access Read/Write

Network Access None

Pressure Decrease Value — If the maximum damper position

in the system goes below the minimum configuration setting,

the linkage coordinator will calculate an amount that the static

pressure should be decreased. This is used to open the system

dampers more so that they will modulate between their mini-

mum and maximum settings.

Previous Unoccupied Day — This variable displays the day

when the last associated zone changed from occupied to unoc-

cupied mode. This point is read in conjunction with the previ-

ous unoccupied time to allow the user to know the last time and

day when a zone became unoccupied.

Previous Unoccupied

This number is rounded to the nearest tenth of an inch and

will be added to the static pressure reset value unless the static

pressure reset value has reached maximum reset.

Day:

Display Range

MON, TUE, WED,

THU, FRI, SAT, SUN

No display (Blank)

Default Value

Network Access None

Previous Unoccupied Time — This variable displays the time

of day when the last associated zone changed from occupied to

unoccupied mode. This point is read in conjunction with the

previous unoccupied day to allow the user to know the last time

and day when a zone became unoccupied.

Pressure Decrease

Value:

Display Units

Display Range

Default Value

in. wg

0.000 to 5.000

0.000

Network Access Read/Write

Pressure Increase Value — If the maximum damper position

in the system goes above the maximum configuration setting,

the linkage coordinator will calculate an amount that the static

pressure should be increased. This is used to close the system

dampers more so that they will modulate between their mini-

mum and maximum settings.

Previous Unoccupied

Time:

Display Range

Default Value

Network Access None

00:00 to 24:00

0:00

801

This number is rounded to the nearest tenth of an inch and

will be subtracted to the static pressure reset value unless the

static pressure reset value has reached zero.

Unoccupied Start Time — This variable displays the time that

the current occupied mode will end (the beginning of the next

unoccupied mode). If the current mode is unoccupied or the

zone controller is following a global schedule, the value dis-

played by this point will be 0:00.

Pressure Increase

Value:

Display Units

Display Range

Default Value

in. wg

0.000 to 5.000

0.000

Unoccupied Start

Time:

Display Range

Default Value

00:00 to 24:00

0:00

Network Access Read/Write

Network Access None

OCCUPANCY MAINTENANCE TABLE — The Occu-

pancy Maintenance table is used to view the occupancy set

points. See Table 14.

Mode — This variable displays the current occupied mode for

the zone controller. If the zone controller is following its own

local schedule, this is the result of the local schedule status. If

the zone controller is configured to follow a global schedule,

this point displays the mode last received from a global sched-

ule broadcast.

Next Occupied Day — This variable displays the day when

the next occupied period is scheduled to begin. This point is

read in conjunction with the next occupied time to allow the

user to know the next time and day when the next occupied pe-

riod will occur. If the zone controller is following a global

schedule this point will remain at default.

NOTE: If the current mode is occupied, this point makes refer-

ence to the next occupied period and, in most cases, may not

be the same as the current occupied start time.

Mode:

Display Range

Default Value

0 or 1 (1 = occupied)

Next Occupied

Day:

Network Access None

Display Range

Default Value

MON, TUE, WED,

THU, FRI, SAT, SUN

No display (Blank)

Current Occupied Period — If the zone controller is config-

ured to determine occupancy locally, this variable will display

the current period determining occupancy.

Network Access None

→

Next Occupied Time — This variable displays the time of day

when the next occupied period will occur. This point is read in

conjunction with the next occupied day to allow the user to

know the next time and day when the zone will become occu-

pied. If the zone controller is following a global schedule this

point will remain at default.

NOTE: If the current mode is occupied, this point makes

reference to the next occupied period and, in most cases,

may not be the same as the current occupied start time.

Next Occupied

Current Occupied

Period:

Display Range

Default Value

1 to 8

Network Access None

Override in Progress — If an occupancy override is in

progress, this variable will display a yes.

Override In

Progress:

Display Range

Default Value

Yes/No

Network Access None

Time:

Display Range

Default Value

00:00 to 24:00

0:00

Override Duration — This variable displays the number of

minutes remaining for an occupancy override which is in

effect. If the number of override hours was downloaded, the

value will be converted to minutes.

Network Access None

→ Next Unoccupied Day — This variable displays the day when

the next unoccupied period is scheduled to begin. This point is

read in conjunction with the next unoccupied time to allow the

user to know the next time and day when the zone will become

unoccupied. If the zone controller is following a global sched-

ule this point will remain at default.

Override

Duration:

Display Units

Display Range

Default Value

minutes

0 to 1440

Network Access None

NOTE: If the current mode is unoccupied, this point makes

reference to the next unoccupied period and, in most cases,

may not be the same as the current unoccupied start time.

Occupied Start Time — This variable displays the time that

the current occupied mode began. If the current mode is unoc-

cupied or the zone controller is following a global schedule, the

value displayed by this point will be 0:00.

Next Unoccupied

Day:

Display Range

Default Value

MON, TUE, WED,

THU, FRI, SAT, SUN

No display (Blank)

Occupied Start

Time:

Display Range

Default Value

00:00 to 23:59

0:00

Network Access None

Table 14 — Occupancy Maintenance Screen

DESCRIPTION

DEFAULT

POINT NAME

MODE

Mode

Current Occupied Period

Override in Progress

Override Duration

Occupied Start Time

Unoccupied Start Time

Next Occupied Day

Next Occupied Time

Next Unoccupied Day

Next Unoccupied Time

Last Unoccupied Day

Last Unoccupied Time

PERIOD

OVERLAST

OVERDURA

OCCSTART

UNSTART

NXTOCCD

NXTOCCT

NXTUNOD

NXTUNOT

PRVUNOD

PRVUNOT

00:00

(blank)

00:00

(blank)

00:00

(blank)

00:00

501

→

Next Unoccupied Time — This variable displays the time of

day when the next unoccupied period is scheduled to begin.

This point is read in conjunction with the next unoccupied day

to allow the user to know the next time and day when the zone

will become unoccupied. If the zone controller is following a

global schedule this point will remain at default.

Maximum Cooling Airflow Calibration — By enabling the

Maximum Cooling Airflow Calibration, the Maximum Cool-

ing Airflow from the set point schedule will be made the Air-

flow CFM Set Point. The zone controller will modulate the

damper to control to this set point. The actual airflow, damper

position, and velocity pressure readings will be displayed.

NOTE: If the current mode is unoccupied, this point makes

reference to the next unoccupied period and, in most cases,

may not be the same as the current unoccupied start time.

If the set point is not correct, it may be changed from this

screen by forcing the airflow set point to the desired value. The

value will be written to the set point schedule in the Maximum

Cool CFM set point, and the zone controller will begin to con-

trol to the new value.

The airflow can be measured using test and balance equip-

ment and compared to the actual reading on the screen. If the

value measured requires adjustment to the value on the screen,

force the value on the screen to the value measured. The zone

controller will take the value and calculate a new calibration

gain which will be shown at the bottom of the screen. The new

value will be automatically loaded into the Service Configura-

tion table.

Next Unoccupied

Time:

Display Range

Default Value

00:00 to 24:00

0:00

Network Access None

→

Last Unoccupied Day — This variable displays the last day

when the zone changed from occupied to unoccupied mode.

This point is read in conjunction with the last unoccupied time

to allow the user to know the last time and day when the zone

became unoccupied. If the zone controller is following a global

schedule this point will remain at default.

Maximum Cooling

Airflow

Last Unoccupied

Day:

Display Range

Default Value

MON, TUE, WED,

THU, FRI, SAT, SUN

No display (Blank)

Calibration:

Display Range Dsable/Enable

Default Value Dsable

Network Access Read /Write

Network Access None

→

Last Unoccupied Time — This variable displays the last time

of day when the zone changed from occupied to unoccupied

mode. This point is read in conjunction with the last unoccu-

pied day to allow the user to know the last time and day when a

zone became unoccupied. If the zone controller is following a

global schedule this point will remain at default.

Minimum Cooling Airflow Calibration — Enabling the Min-

imum Cooling Airflow Calibration will cause the airflow CFM

set point to change to the Minimum Cooling set point. The ac-

tual airflow, damper position, and velocity pressure readings

will be displayed.

If the set point is not correct, it may be changed from this

screen by forcing the Airflow set point to the desired value.

The value will be written to the set point schedule in the Mini-

mum Cool CFM set point, and the zone controller will begin to

control to the new value.

Last Unoccupied

Time:

Display Range

Default Value

00:00 to 24:00

0:00

Network Access None

ZONE AIR BALANCE/COMMISSIONING TABLE —

The Zone Air Balance/Commissioning Table is used to display

the air balance variables. See Table 15.

Commissioning Mode — This variable is used to put the zone

controller into the commissioning mode. Force this point to en-

able. The zone controller will be ready to accept a command to

perform the tests and functions on this screen.

The airflow can be measured using test and balance equip-

ment and compared to the actual reading on the screen. If the

value measured requires adjustment to the value on the screen,

force the value on the screen to the value measured. The zone

controller will take the value and calculate a new offset.

The Offset configuration is included for precision applica-

tions where the minimum airflow is critical and not zero. The

Offset configuration should not be used to zero the airflow

transducer since an auto zero test is included in the normal

function of the zone controller and is automatically performed

each time the equipment fan is disabled (or every 72 hours for

systems which run the fan continuously). After performing air

balance testing using the Air Balance Maintenance screen, it is

a good idea to upload and save the Airflow set points, Calibra-

tion Gain, and Offset values.

NOTE: Commissioning mode will automatically be dis-

abled after one hour.

Commissioning

Mode:

Display Range

Default Value

Dsable/Enable

Dsable

Network Access Read /Write

Damper Actuator/Transducer Calibration — The Damper

Actuator Transducer calibration is the first calibration which

should be performed on a newly installed actuator. The zone

controller will command the actuator to close and read the

feedback potentiometer to determine the zero position of the

damper. It will then command the damper to fully open. The

zone controller will read the potentiometer to determine the

maximum open position. Damper positions from closed to

maximum open will be scaled to read 0 to 100% for the damp-

er position.

The zone controller will then close the damper and open it

once more to zero calibrate the airflow sensor. The entire

calibration procedure can take up to 3 minutes. If the damper

fails the test or the airflow calibration is unable to be complet-

ed, the Auto-Calibration point will indicate an Alarm.

Minimum Cooling

Airflow

Calibration:

Display Range Dsable/Enable

Default Value Dsable

Network Access Read /Write

Fan Override — This variable can be used to test the fan on se-

ries and parallel fan powered terminals. Enabling this point will

cause the terminal fan to run until this point is disabled or the

commissioning mode is ended.

Fan Override:

Display Range

Default Value

Dsable/Enable

Dsable

Network Access Read /Write

Damper Actuator

Transducer

Calibration:

Display Range Dsable/Enable

Default Value Dsable

Network Access Read /Write

501

→ Table 15 — Zone Air Balance/Commissioning Table

DESCRIPTION

Commissioning Mode

Damper/Transducer Calibration

Maximum Cooling

Minimum Cooling

Heating Override

Fan Override

CFM Set Point

Actual Airflow

Primary Damper Position

Measured Velocity Pressure

Supply Air Temperature

Auto-Calibration

DEFAULT

Dsable

0 cfm

100 %

0.000 in. wg

0.0 F

Normal

1.000

POINT NAME

CMODE

CALIBRAT

MAXCOOL

MINCOOL

HEATOVER

FANOVER

COMCFM

AIRFLOW

DMPPOS

MVP

SAT

CAL

CAL_GAIN

Calibration Gain

Heating Override — This variable can be used to test the heat

outputs. Enabling this variable will cause the heat to be modu-

lated or staged to full heat until this point is disabled or the

force released. Ducted reheat operation will be controlled so as

not to exceed the configured maximum duct temperature. The

supply-air temperature is included on this screen to verify that

the heat is operating.

Display Range

by velocity pressure transducer high alarm

limit)

Default Value

Network Access Read Only

0.000 to 2.000 (Limited

0.000

Supply-Air Temperature — This variable displays the supply-

air temperature for ease of verifying the heat operation during

the heat test.

Heating Override: Display Range

Default Value

Dsable/Enable

Dsable

Supply-Air

Temperature:

Network Access Read /Write

Display Units

Display Range

Default Value

F (C)

-40.0 to 245.0

0.0

Airflow CFM Set Point — This variable displays the current

airflow set point that the zone controller is controlling to. Dur-

ing the calibration tests this value can be forced, which will

change the set point configuration for the value being tested.

Network Access Read /Write

Auto-Calibration — This variable will display “Normal” if the

actuator and airflow transducer calibrations are successful. If

damper or transducer calibration was not successful, this point

will display “Alarm” and the zone controller will broadcast the

appropriate alarm (if configured to transmit alarms).

Airflow CFM

Set Point:

Display Units

Display Range

CFM

0 to 9999 (Limited by

velocity pressure transducer high alarm

limit)

Auto-Calibration: Display Range

Default Value

Normal/Alarm

Normal

Default Value

Network Access Read /Write

Network Access Read Only

Actual Airflow Display — This variable shows the actual air-

flow being measured, based on the inlet size configured. Dur-

ing the Maximum and Minimum Cooling Airflow calibration

tests this value can be forced, which will correct the multiplier

or offset used to calculate the airflow.

Calibration Gain — Air terminal testing by industry standards

is done with straight duct, upstream of the terminal. Since most

applications are not installed in this manner, the actual airflow

from the terminal, at balancing, may not equal the reading from

the zone controller.

The Calibration Gain is used for making fine tuning adjust-

ments to the airflow calculation. This number is calculated au-

tomatically by the zone controller after input to the air balance

maintenance screen. The Calibration Gain can also be entered

manually in the service configuration CONFIG screen.

Actual Airflow: Display Units

Display Range

CFM

0 to 9999 (Limited by

velocity pressure transducer high alarm

limit)

Default Value

Network Access Read /Write

A number of .95 entered into the Calibration Gain variable

will cause the maximum airflow to be reduced to 95% of the

calculated value. A number of 1.05 would cause readings to

become 5% higher. The Calibration Gain is adjusted on the Air

Balance maintenance screen when performing the Maximum

Airflow Calibration and will have the greatest affect on the air-

flow at maximum CFM.

After performing the air balance procedure using the air bal-

ance maintenance screen, it is recommended to upload and

save the Airflow Configuration, Calibration Gain, and Offset

settings.

Primary Damper Position — This variable displays the cur-

rent damper position. During CFM Balancing, this variable is

used to display the position of the damper. This value can

be used to see if the damper is fully open and the system air is

sufficient.

Primary Damper

Position:

Display Units

Display Range

Default Value

% (open)

0 to 100

100

Network Access Read Only

Measured Velocity Pressure — This variable displays the

measured velocity pressure, which is used to check accuracy

during test and balancing of the terminal. If the pressure

appears to be much different than that measured with a Magna-

helic gage, the transducer can be forced to recalibrate its zero

by enabling the Damper/Transducer Calibration.

Calibration Gain: Display Range

Default Value

0.000 to 9.999

1.000

Network Access Read Only

Measured Velocity

Pressure:

Display Units

in. wg

501

ZONE MAINTENANCE TABLE — The Zone Maintenance

table is used to display zone set points and variables. See

Table 16.

Occupied — This variable indicates if the zone controller is

operating in the occupied mode.

unoccupied mode. This variable will display any space temper-

ature sensor slidebar offset that is being applied.

Cool Master

Reference:

Display Units

Display Range

Default Value

F (C)

45.0 to 99.9

90.0

Occupied:

Display Range

Default Value

No/Yes

Network Access Read/Write

Network Access Read Only

Primary Damper Airflow Reference — This variable dis-

plays the current controlling airflow set point.

→

Linkage Slave — This variable displays if air source linkage is

in effect.

Primary Damper

Airflow

Display Units

Display Range

CFM

Linkage Slave: Display Range

Default Value

No/Yes

Reference:

0 to 9999 (Limited by

velocity pressure transducer high alarm

limit)

Network Access Read Only

Linkage Master — This variable displays if this zone control-

ler is functioning as a linkage master.

Default Value

Network Access Read /Write

Linkage Master: Display Range

Default Value

No/Yes

Primary Damper Position — This variable displays the cur-

rent damper position.

Network Access Read Only

Primary Damper

Position:

Timed Override in Effect — This variable indicates if a timed

override is in effect.

Display Units

Display Range

Default Value

% (open)

0 to 100

100

Timed Override

in Effect:

Display Range

Default Value

No/Yes

Network Access Read/Write

Secondary Damper Airflow Reference — This variable dis-

plays the current controlling airflow set point for the secondary

damper.

Network Access Read Only

Set Point Offset (T-56) — This variable displays the degrees

of offset when using a 33ZCT56SPT space temperature sensor

with set point adjustment. The slidebar on the sensor will adjust

the desired temperature in that zone, up or down, when it is

moved. The Set Point Offset (T-56) variable can disable set

point offset (set to 0).

Secondary Damper

Airflow

Display Units

Display Range

CFM

Reference:

0 to 9999 (Limited by

velocity pressure transducer high alarm

limit)

Default Value

Network Access Read /Write

Set Point

Offset (T-56):

Display Units

Display Range

Default Value

delta F (delta C)

0.0 to 15.0

0.0

Heat Enable — This variable displays the demand for heat in

the space. The space temperature must be below the appropri-

ate heat set point.

Network Access Read Only

Cool Master Reference — This variable displays the cooling

master reference from the set point schedule. This should be

the occupied cool set point when the zone is in occupied

mode or the unoccupied cool set point when the zone is in

Heat Enable:

Display Range

Default Value

Dsable/Enable

Dsable

Network Access Read Only

→ Table 16 — Zone Maintenance Table

DESCRIPTION

DEFAULT

POINT NAME

ZONEOCC

DAVCTL

LINKMAST

TIMOV

T56OFF

CCMR

PISMR

PDSMR

SDSMR

HEATENA

HCMR

HSMR

TCA

RHA

Occupied

Linkage Slave

Linkage Master

Timed Override in Effect

Set Point Offset (T-56)

Cool Master Reference

PI Primary Damper Reference

PD Primary Damper Reference

Secondary Damper Reference

Heat Enable

Heat Master Reference

Heat Submaster Reference

Temperature Control Airflow

Relative Humidity Airflow

Air Quality Airflow

0.0 F

90.0 F

0 cfm

100 %

0 cfm

Dsable

55.0 F

0 F

100 %

0 %

AQA

Cooling in Effect

Heating in Effect

RH in Effect

AQ in Effect

Unoccupied Dehumidification

Cooling Energy

Heating Energy

Yes

0 Btu

COOLFLAG

HEATFLAG

RHFLAG

AQFLAG

UNOCCDH

COOLBTUS

HEATBTUS

801

Heat Master Reference — This point displays the occupied

heat set point if occupied, or the unoccupied heat set point if

unoccupied. This variable will display any space temperature

sensor slidebar offset that is being applied.

Cooling in Effect — This variable displays if the air source is

in the Cooling mode and if the terminal is using the cooling air-

flow set points.

Cooling In Effect: Display Range

Default Value

No/Yes

Yes

Heat Master

Reference:

Display Units

Display Range

Default Value

F (C)

Network Access Read Only

40.0 to 90.0

55.0

Network Access Read/Write

Heating in Effect — This variable displays if the air source is

in the Heat mode and if the terminal is using the heating air-

flow set points.

Heat Submaster Reference — If heat is enabled, this variable

displays the desired supply air temperature calculated to heat

the space. This is a result of the heating PID loop calculation.

Heating In Effect: Display Range

Default Value

No/Yes

Network Access Read Only

Heat Submaster

Reference:

Relative Humidity Control in Effect — This variable indi-

cates if the relative humidity control is active.

Relative Humidity

Control In Effect: Display Range

Default Value

Network Access Read Only

Air Quality Control in Effect — This variable indicates if the

air quality control is active.

Air Quality

Control In Effect: Display Range

Default Value

Display Units

Display Range

Default Value

F (C)

0 to 240

No/Yes

Network Access Read/Write

Temperature Control Airflow — This variable displays the

airflow set point determined from the temperature loop calcula-

tion. The zone controller compares the Temperature, Relative

Humidity, and Air Quality loop. The greatest of the three will

become the primary damper airflow reference.

No/Yes

Temperature

Control Airflow: Display Units

Display Range

0 to 100

100

Network Access Read Only

Unoccupied Dehumidification — This variable indicates if

unoccupied dehumidification control is in effect.

→

Default Value

Network Access Read Only

Unoccupied

Dehumidification: Display Range

Default Value

Relative Humidity Control Airflow — This variable dis-

plays the airflow set point determined from the relative

humidity loop calculation. The zone controller compares the

Temperature, Relative Humidity, and Air Quality loop. The

greatest of the three will become the primary damper airflow

reference.

Yes/No

Network Access Read Only

Cooling Energy — This variable displays the amount of pri-

mary air source cooling BTUs being provided to the space by

the terminal. A CCN compatible air source or PAT sensor on a

linkage master is required.

Cooling Energy: Display Units

Display Range

Relative Humidity

Control Airflow: Display Units

Display Range

0 to 100

Btu

0 to 999999

Default Value

Network Access Read Only

Default Value

Network Access Read Only

Air Quality Control Airflow — This variable displays the air-

flow set point determined from the air quality loop calculation.

The zone controller compares the Temperature, Relative

Humidity, and Air Quality loop. The greatest of the three will

become the primary damper airflow reference.

Heating Energy — This point displays the amount of primary

air source heating BTUs being provided to the space by the ter-

minal. This value will not include zone level heating. A CCN

compatible air source or PAT sensor on a linkage master is

required.

Heating Energy: Display Units

Display Range

Air Quality

Control Airflow: Display Units

Display Range

0 to 100

Btu

0 to 999999

Default Value

Network Access Read Only

801

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

PC 111 Catalog No. 533-355 Printed in U.S.A. Form 33ZC-1SI Pg 52 303 11-99 Replaces: New

Book 1

Tab 11a 13a

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