Trane Thermostat RT SVX19A E4 User Manual

Installation

Operation

Maintenance

Voyager™ II Rooftop units

Cooling onlyTKD/TKH 155 175 200 250

Reversible WKD/WKH 125 155 200

Gas-FiredYKD/YKH 155 175 200 250

R22 - R407C Refrigerant

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General information

Warranty

Refrigerant

Storage

Warranty is based on the general

terms and conditions of the

manufacturer.The warranty is void if

the equipment is repaired or

The refrigerant provided by the

manufacturer meets all the

Take precautions to prevent

condensate formation inside the

unit's electrical components and

motors when:

1. The unit is stored before it is

installed; or,

2. The unit is set on the roof curb

and temporary auxiliary heat is

provided in the building.

requirements of our units. When

using recycled or reprocessed

refrigerant, it is advisable to ensure

its quality is equivalent to that of a

new refrigerant. For this, it is

necessary to have a precise analysis

made by a specialized laboratory. If

this condition is not respected, the

manufacturer warranty could be

cancelled.

modified without the written

approval of the manufacturer, if the

operating limits are exceeded or if

the control system or the electrical

wiring is modified. Damage due to

misuse, lack of maintenance or

failure to comply with the

manufacturer's instructions or

recommendations is not covered by

the warranty obligation. If the user

does not conform to the rules of

this manual, it may entail

Isolate all side panel service

entrances and base pan openings

(e.g., conduit holes, S/A and R/A

openings, and flue openings) to

minimize ambient air from entering

the unit until it is ready for start-up.

Maintenance contract

It is strongly recommended that you

sign a maintenance contract with

your local Service Agency.This

contract provides regular

maintenance of your installation by

a specialist in our equipment.

Regular maintenance ensures that

any malfunction is detected and

corrected in good time and

minimizes the possibility that

serious damage will occur. Finally,

regular maintenance ensures the

maximum operating life of your

equipment. We would remind you

that failure to respect these

installation and maintenance

instructions may result in

cancellation of warranty and

liabilities by the manufacturer.

Do not use the unit's heater as

temporary heat without completing

the start-up procedures detailed

under "Unit Start-Up".

TheTrane Company will not assume

responsibility for equipment

damage resulting from

accumulation of condensate on the

unit electrical components.

Training

To assist you in obtaining the best

use of it and maintaining it in

perfect operating condition over a

long period of time, the

manufacturer has at your disposal a

refrigeration and air conditioning

service school.The principal aim of

this is to give operators and

immediate cancellation of the

warranty.

technicians a better knowledge of

the equipment they are using, or

that is under their charge. Emphasis

is particularly given to the

importance of periodic checks on

the unit operating parameters as

well as on preventive maintenance,

which reduces the cost of owning

the unit by avoiding serious and

costly breakdown.

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Contents

Foreword

Warnings and Cautions

Safety recommendations

Reception

Warranty

Refrigerant

Maintenance contract

Storage

Training

Installation

Reception of units

Roof curb installation

Dimensions/Weights/Clearances

Installing the unit

Connection of duct network

Condensate drain piping

Gas pipework installation

Filter installation

Supply fan adjustment

Component air pressure drops

Supply fan performances

Electrical connection

Controls

Control wiring

CO sensors

Remote potentiometer

Fire thermostat

Clogged filter detector

Smoke detector

High temperature safety thermostat

Remote fault relay

Thermostats

Communication Interfaces

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Contents

Unit Options

Hot water coil

Electric Heater

Soft Starter

0 - 25% fresh air hood

Barometric relief

Operation

Operation with a conventional thermostat

Setting the economizer

Test procedures

Test modes

Unit start-up

Cooling without an Economizer

Low Ambient Operation

Cooling with an Economizer

Economizer Set-Up

ReliaTel™ Control Heating Operation

Ignition Module

Final installation checklist

Maintenance

End user routine maintenance

Service technician maintenance

Troubleshooting

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Installation

General information :The

installation must conform to all

local standards and regulations.

There are two ways to handle the

unit:

1. Use the openings in the wooden

frame to handle the machine

using a fork lift, in accordance

with applicable safety

Reception of units

Rooftop unit

regulations.

The unit is supplied on a wooden

frame. It is recommended to check

the machine's condition upon

reception.

2. Use a lifting beam correctly

adjusted to fit the unit

(Figure 1a).

Unit handling

The units are supplied on the truck

but are not unloaded. An opening is

provided on each corner of the unit

base to facilitate handling.

4 shackles and 4 slings are required.

Use a lifting beam to prevent the

cables pressing too hard on top of

the unit during lifting.

Figure 1a indicates the position of

the center of gravity and the lifting

recommendations.

Important: For unit to fit on the

roof curb the fork lift pockets must

be removed.

Figure 1a - Unit handling

1 = Clevis

2 = Base Rail

3 = Spreader Bar

L = Length (Center of Gravity)

W = Width (Center of Gravity)

Refer toTable 2 for weights and center of gravity.

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Installation

Table 1 - Sling lengths and maximum unit weight

Roof curb Installation

(TKD-WKD-YKD

accessories)

Maximm weight

Unit size

A (mm)

B (mm)

125

155

175

400

500

3000

3500

1900

2200

644

773

Roof curbs are available as an

accessory for "downflow" units to

support the unit and ensure the

water tightness between the rooftop

and the roof.Two types of roof

curbs are available:The standard

version to allow the installation of

the unit on a flat roof and the

adjustable version for a sloped roof

installation. (See Figure 1b for the

maximum slope correction of

adjustable roofcurb.)

810

1001

1027

Figure 1b - Maximum slope correction of adjustable roof curb.

The adjustable roof curbs are

supplied pre-assembled on a skid.

Two types of self-adhesive seals are

provided separately. (40 mm wide

for the perimeter, 20 mm wide for

the cross pieces). Make sure they

are properly installed where

indicated to assure an adequate

curb to unit seal.

Instructions for the roof curb

assembly and installation with curb

dimensions are provided with each

roof curb kit.

Figure 2 - Waterproofing

1 = Roofcurb

2 = Roof membrane

3 = Seal

4 = Rooftop

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Installation

Dimensions/Weights/Clearances

Figure 3 - Minimum clearances

Table 2 - Minimum clearances (mm)

Minimum clearance

UNIT

YKD/YKH 155

YKD/YKH 175

YKD/YKH 200

YKD/YKH 250

TKD/TKH 155

TKD/TKH 175

TKD/TKH 200

TKD/TKH 250

WKD/WKH 125

WKD/WKH 155

WKD/WKH 200

1900

1800

1220

1000

1300

The structure accommodating the unit(s) must be designed to support the

equipment in operation, as a minimum. Refer toTable 3a and the space

requirement plan.

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Installation

Table 3a - Weigths & center of gravity (Figure 1)

Maximum weight

Corner Weight (1)

Center of Gravity

Shipping

Net

(kg)

698

735

920

946

623

660

841

866

625

642

871

Length (L)

Width (W)

(mm)

737

UNIT

(kg)

866

(kg)

243

251

324

327

219

227

297

300

218

228

291

(kg)

176

188

242

251

159

172

221

230

159

162

226

(kg)

118

127

151

159

103

112

138

145

105

155

(kg)

162

169

203

208

142

149

185

206

144

147

199

(mm)

1143

1168

1321

1346

1143

1168

1321

1346

1143

1346

YKD/YKH 155

YKD/YKH 175

YKD/YKH 200

YKD/YKH 250

TKD/TKH 155

TKD/TKH 175

TKD/TKH 200

TKD/TKH 250

WKD/WKH 125

WKD/WKH 155

WKD/WKH 200

902

737

1128

1154

790

838

711

827

711

1050

1075

792

838

711

809

711

1080

889

1. Corner weights are given for information only. All models must be supported continuously by a curb or equivalent frame support.

Table 3b - Weights of Options & accessories

Motorized

Outside Air

Damper

Standard Roof Adjustable Roof

Manual Outside

Air Damper

UNIT

Curb

220

260

Economizer

Electric heater Hot water coil

YKD 155

YKD 175

YKD 200

YKD 250

YKH 155

YKH 175

YKH 200

YKH 250

TKD 155

TKD 175

TKD 200

TKD 250

TKH 155

TKH 175

TKH 200

TKH 250

WKD 125

WKD 155

WKD 200

WKH 125

WKH 155

WKH 200

107

220

260

107

110

180

220

260

107

110

Notes :

Net weight should be added to unit weight when ordering factory installed accessories.

To estimate shipping weight add 2.3 kg to net weight.

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Installation

Installing the unit

1) Unit mounting on roof

Fix the rooftop curb on the joint

beam of the building's structure.

Make the rooftop curb's sealing

surface level using angle brackets

adjusted by screw bolts, located

around its perimeter. Place the

adhesive seals on the curb's sealing

surface (perimeter and cross

Figure 4

pieces). Make the rooftop leak-tight

around the curbs before installing

the unit, in compliance with current

construction standards.

Note:The unit must be installed

perfectly level to ensure

condensates flow from the

condensate tray.

The rooftop unit nests into the curb

and is supported by it. Position the

unit, taking care to comply with the

indicated directions: the unit's

discharge and intake openings must

match those of the curb.

1 = Frame

2) Installing the unit on the ground

Figure 5

To install the unit on the ground, its

base must be level and supported

securely.

For horizontal discharge units, a

support is required such as a metal

or concrete slab whose height must

be determined according to the

amount of snow cover, to prevent

problems with condensation

drainage and obstruction of the

external coil. If necessary use an

anti-vibration material between the

rooftop unit's base and the support.

Note: Unit installation must comply

to local codes

1 = Concrete slab

10 RT-SVX19A-E4

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Installation

. Installation of a section of

flexible ducts to limit

transmission of the unit's

vibrations

. Use of movable vanes or

deflectors to reduce the sound

level.

Connection of duct

network

1) Downflow discharge units

(TKD,WKD,YKD)

Using the rooftop curb

•

The rooftop curb must be

insulated on the outside walls at

the discharge and intake

openings to prevent

2) Horizontal discharge units

(TKH,WKH,YKH)

•

The intake and discharge ducts

must be insulated (thermal

insulation).

The duct section located outside

must be leak-tight.

Provide a flexible connector to

prevent transmission of the unit

vibrations.This flexible duct

must be installed inside the

building.

condensation in the ducts.

•

The rims around the discharge

and intake openings make it

possible to attach the flanges on

the ends of the ducts. If you are

using rigid duct ends

•

recommended on the rooftop

curb plan, it is essential to fix

these components before

installing the unit.

•

For the design of the duct

network, comply with

recommendations currently

applicable on the market, in

particular:

Note: In case of use ofTKH, WKH or

YKH units with economizer option,

temperature and humidity sensors

must be installed in return duct.

Economizer linkage is factory

mounted but the damper position

must be adjusted on site.

Figure 6 - Condensate Drain location

1 = Condensate drain connection

A =TKH/YKH 155, 175, 200, 250 - WKH 125,155, 200

B =TKD/YKD 155, 175, 200, 250 - WKD 125,155,200

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Installation

Condensate drain piping

A 42mm PVC condensate drain

connection with P-trap is provided.

Follow local codes and standard

piping practices when running the

drain line. Install a trap and be sure

to fill with water before starting the

unit. Pitch the line downward, away

from the unit to avoid long, level,

horizontal runs. Refer to Figure 7.

Figure 7 - Condensate drain line connection

1 = Static pressure drain pan

2 = Panel enclosure

3 = 42mm PVC drain

4 = Cleanout plug

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Installation

CAUTION! Should the pressure at

the unit valve gas inlet be higher

than 0.035 bar, an expansion valve

must be installed.

CAUTION!The gas pipework must

not exert any stress on the burner

gas connection.

Gas pipework installation

The installation must conform to all

standards and regulations.

Note: Expansion valve must be

The gas supply pipework and gas

stop valve to be installed near the

unit must be sized so as to assure

the gas pressure is sufficient at the

unit inlet when operating at full

load.

The pipework must be self-

supporting and the final connection

to the burner must be made by a

flexible pipe. Provide a dust

protection (filter) upstream the unit

connection.

adapted to the type of gas used:

•

G 20 : 20 mb

G 25 : 25 mb

G 31 : (Propane): 37 or 50 mb

Table 4 - Gas burner models

Unit

Burner size

G350A

YKD/H

155

175

200

250

G350A

SeeTable 38 for burner

performance.

Gas leak check procedure

1. Vent the gas line

2. Gas supply line pressure test:

close valve 4 and open valve 2

Figure 8 -Typical gas supply Pipework

3. Leak-check the gas pipe

Look for gas pipe leaks using

"Typol", "1000 bulles" or a similar

product. Do not use soapy water.

WARNING! Never use an open

flame to check for gas leaks.

Required gas pressure at the unit

inlet connection are given in

Table 37.

Note:To operate with propane gas,

the burner is fitted with a pressure

limiter (supplied byTrane)

1 = Evaporator section

2 = Gas burner section

3 = Condenser section

4 = Gas supply connection

5 = Gas supply line

6,8 = Gas stop valve (Field supplied)

7 = Expansion valve (Field supplied)

9 = Filter (Field supplied)

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Installation

CAUTION! Do not operate unit

without filters in place.

Filter installation

To gain access to filters, remove the

supply fan access panel on

downflow units and the filter access

panel on the end for horizontal

units.

The maximum pressure drops

allowable on filters are:

EU2/G2: 120 Pa

EU4/G4: 150 Pa

Each unit ships with 40 or 50 mm

thick filters. Number and size of

filters is determined by size and

configuration of the unit.

Table 5 - Filter arrangement

EU2/G2

EU4/G4

Size

UNIT

Qty

Size

Qty

(508x508x50)

(508x635x50)

(508x508x50)

(508x635x50)

(508x508x50)

(508x635x50)

(508x508x50)

(508x635x50)

(508x508x50)

(508x635x50)

(508x508x50)

(508x635x50)

(508x508x50)

(508x635x50)

(508x508x50)

(508x635x50)

(508x508x50)

(508x635x50)

(508x508x50)

(508x635x50)

(508x508x50)

(508x635x50)

(498x498x40)

(500x625x50)

(498x498x40)

(500x625x50)

(498x498x40)

(500x625x50)

(498x498x40)

(500x625x50)

(498x498x40)

(500x625x50)

(498x498x40)

(500x625x50)

(498x498x40)

(500x625x50)

(498x498x40)

(500x625x50)

(498x498x40)

(500x625x50)

(498x498x40)

(500x625x50)

(498x498x40)

(500x625x50)

YKH/YKD 155

YKH/YKD 175

YKH 200

YKD 200

YKH 250

YKD 250

TKH/TKD 155

TKH/TKD 175

TKH 200

TKD 200

TKH 250

TKD 250

WKH/WKD 125

WKH/WKD 155

WKH 200

WKD 200

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Installation

b. Add static pressure drop of the

accessories installed on the

unit. (Table 7,8 & 9)

c. Add the total accessory static

pressure drop (from step 1b) to

the design external static

pressure (from step 1a).The

sum of these two values is the

total system external static

pressure.

2. Using theTables 10 through 20 to

find the external static pressure

that most closely approximates

total system external static

pressure.Then locate the

Supply fan adjustment

Use the following procedure to

determine the proper adjustment of

the supply fan for a specific

application.

1. Determine total external static

pressure about system and

accessories.

appropriate airflow rate for your

unit.The value obtained

represents the brake horsepower

for the supply fan motor and the

fan RPM.

a. Obtain the design airflow rate

and the design external static

pressure drop through the

distribution system.

3. Adjust motor sheave according

toTable 6.

Table 6 - Motor sheave / Fan speed

Fan Speed (RPM)

Standard Drive

6 turns

Open

566

5 turns

4 turns

Open

637

3 turns

Open

672

2 turns

1 turns

Open

743

UNIT

YKD/YKH 155

YKD/YKH 175

YKD/YKH 200

YKD/YKH 250

TKD/TKH 155

TKD/TKH 175

TKD/TKH 200

TKD/TKH 250

WKD/WKH 125

WKD/WKH 155

WKD/WKH 200

Open

601

769

550

619

601

769

550

619

566

601

550

Open

708

906

659

712

708

906

659

712

667

708

659

Closed

N/A

724

815

860

951

696

743

513

586

623

588

650

681

566

637

672

743

724

815

860

951

696

743

513

586

623

588

650

681

533

600

633

700

743

566

637

672

513

586

623

696

Fan Speed (RPM)

Oversized Drive

6 turns

Open

672

5 turns

Open

714

4 turns

Open

756

3 turns

Open

798

2 turns

Open

840

1 turns

Open

882

UNIT

YKD/YKH 155

YKD/YKH 175

YKD/YKH 200

YKD/YKH 250

TKD/TKH 155

TKD/TKH 175

TKD/TKH 200

TKD/TKH 250

WKD/WKH 125

WKD/WKH 155

WKD/WKH 200

Closed

N/A

791

840

711

890

939

989

1038

835

680

742

773

804

690

722

714

754

786

818

850

672

756

798

840

882

791

840

711

890

939

989

1038

835

680

742

773

804

690

722

769

754

786

818

850

724

815

860

906

951

513

550

619

586

623

659

696

588

650

681

712

743

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Installation

Figure 9 -Typical fan, motor, and sheave

assembly

To increase airflow

Loosen variable sheave set screw

and turn sheave clockwise.

To decrease airflow

Loosen variable sheave set screw

and turn sheave counter-clockwise.

To increase belt tension

Loosen the nut (next to the idler

sheave) that secures the sheave in

place. With a wrench, apply

pressure clockwise on the outside

nut (round headed one), until

tension desired is reached. While

holding pressure with the tension

nut, retighten the nut next to the

idler sheave.

A = Fan Housing

B =Terminal Block

C = Fan Sheave

D = Plastic Bushing

E = BeltTension Adjustment Bolt

F = Idler Pulley

Table 6b - Belt tensioning

Fan pulley

Type /

diam. (mm)

Fan pulley

Type /

diam. (mm)

Belt

deflexion

(mm)

Deflexion Deflexion Belt tensionBelt tension

TK* /YK* /

Motor kW

WK*

Belt type

/ lengh (mm)

effort

mini

maxi

mini kg

maxi kg

125

155

175

200

250

125

155

175

200

250

1,5

BK90 / 222

BK85 / 210

BK130 / 324

BK160 / 400

BK190 / 476

BK130 / 324

BK140 / 349

BK190 / 476

1VP44 / 105

1VL40 / 95

BX68 / 1727

BX75 / 1905

BX90 / 2286

BX96 / 2438

BX75 / 1905

BX77 / 1955

BX75 / 1905

BX96 / 2438

5,89

2,4

2,9

400

500

6,05

6,96

6,91

5,85

6,17

5,45

6,87

6,32

4,6

1VP50 / 121

1VP44 / 105

1VP56 / 136

4,6

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Installation

Component air pressure drops

Table 7 -YKD/YKH Pressure drop through accessories

Filter

Economizer Economizer

100%

outside air

100%

return air

Airflow

EU2/G2

EU4/G4

6800

7650

8500

9350

10200

7870

102

114

YKD/YKH 155

YKD/YKH 175

YKD 200

8860

9850

10840

11830

8970

10090

11210

12330

13450

8970

10090

11210

12330

13450

11280

12690

14100

15510

16920

11280

12690

14100

15510

16920

YKH 200

YKD 250

YKH 250

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Installation

Table 8 -TKD/TKH Pressure drop through accessories

Filter

Economizer

Electric

heater

Hot water coil

Downflow only

100%

outside air

100%

return air

Airflow

EU2/G2

EU4/G4

6800

7650

102

114

TKD/TKH 155

TKD/TKH 175

TKD 200

8500

9350

10200

7870

8860

9850

10840

11830

8970

10090

11210

12330

13450

8970

10090

11210

12330

13450

11280

12690

14100

15510

16920

11280

12690

14100

15510

16920

TKH 200

TKD 250

TKH 250

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Installation

Table 9 - WKD/WKH Pressure drop through accessories

Economizer

100%

Filter

EU2/G2

Filter

EU4/G4

100%

Electric

heater

Hot water coil

Downflow only

Airflow

5720

outside air

return air

6430

WKD/WKH 125

WKD/WKH 155

WKD 200

7140

7850

8560

6800

7650

8500

9350

10200

8970

10090

11210

12330

13450

8970

10090

11210

12330

13450

WKH 200

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Installation

Supply fan performances

Table 10 -YK 155 External static pressure

External Static Pressure (Pa)

125 150

RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW)

564 587 1.07 610 1.15 633 1.23 655 1.31 677 1.39

100

175

200

225

250

m /h

6800

7650

8500

9350

10200

560 1.14 583 1.23 605 1.31 627 1.39 648 1.48 669 1.56 690 1.65 710 1.74

559 1.31 584 1.41 606 1.5 628 1.6 649 1.69 669 1.78 689 1.87 708 1.97 727 2.06 746 2.16

610 1.72 633 1.83 654 1.94 675 2.04 694 2.14 713 2.24 732 2.34 750 2.45 767 2.55 785 2.65

661 2.21 683 2.33 703 2.45 722 2.56

External Static Pressure (Pa)

275

300

325

350

375

400

425

450

475

500

m /h

RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW)

699 1.47 719 1.55 739 1.63 758 1.71 777 1.79 795 1.86 813 1.94 830 2.01 847 2.09 863 2.16

729 1.82 749 1.92 768 2.01 787 2.1 806 2.19 824 2.28 841 2.37 858 2.46 875 2.55

764 2.25 782 2.35 800 2.45 818 2.55

6800

7650

8500

9350

10200

Standard drive

Oversized drive

RT-SVX19A-E4

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Installation

Table 11 -YK 175 External static pressure

External Static Pressure (Pa)

125 150

100

175

200

225

250

m /h

RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW)

726 1.58 748 1.66 770 1.74 791 1.83 813 1.92 835 2.02

7870

8860

9850

10840

11830

751 1.96 772 2.05 792 2.13 811 2.22 831 2.31 850 2.4 869 2.5 888 2.6

779 2.41 801 2.52 822 2.62 841 2.72 859 2.82 877 2.91 895 3.01 912 3.11 929 3.21 947 3.31

852 3.19 874 3.31 893 3.42 911 3.53 928 3.64 945 3.75 961 3.85 977 3.96 993 4.07 1009 4.18

926 4.12 946 4.25

External Static Pressure (Pa)

275

300

325

350

375

400

425

450

475

500

m /h

RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW)

857 2.12 879 2.22 900 2.33 921 2.44 942 2.55 962 2.65 981 2.75 1000 2.86 1018 2.96 1036 3.06

907 2.7 927 2.81 946 2.92 965 3.03 985 3.15

7870

8860

9850

10840

11830

964 3.42 981 3.53 998 3.64 1016 3.76 1033 3.88

1024 4.29

Standard drive

Oversized drive

Table 12 -YK 200 External static pressure

External Static Pressure (Pa)

125 150

RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW)

530 1.5 551 1.61 572 1.74 593 1.87 614

100

175

200

225

250

m /h

8970

10090

11210

12330

13450

529 1.71 548 1.83 567 1.94 586 2.06 604 2.18 623 2.31 641 2.45

530 1.99 551 2.12 570 2.24 588 2.36 606 2.48 623 2.61 640 2.74 657 2.87 673 3.01

548 2.41 573 2.58 594 2.73 613 2.87 630

646 3.13 662 3.27 678 3.4 693 3.54 709 3.69

593 3.1 617 3.29 638 3.46 656 3.61 672 3.76 688 3.9 703 4.05 718 4.19

External Static Pressure (Pa)

275

300

325

350

375

400

425

450

475

500

m /h

RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW)

633 2.14 652 2.27 670 2.4 688 2.54 705 2.67 721 2.8 737 2.93 753 3.06 768 3.19 783 3.31

660 2.6 679 2.75 697 2.91 714 3.06 731 3.21 747 3.35 763 3.5 778 3.65 793 3.8 808 3.95

690 3.16 707 3.31 724 3.47 741 3.64 757 3.81 773 3.98 789 4.14 804 4.31

724 3.84 739 3.99 754 4.15 770 4.31

8970

10090

11210

12330

13450

Standard drive

Oversized drive

RT-SVX19A-E4

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Installation

Table 13 -YK 250 External static pressure

External Static Pressure (Pa)

125 150

100

175

200

225

250

m /h

RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW)

606 1.62 625 1.72 643 1.82

9870

11280

12690

14100

15510

16920

603 1.88 620 1.97 637 2.07 653 2.17 670 2.27 686 2.37

602 2.18 622 2.30 640 2.41 657 2.52 673 2.63 688 2.74 704 2.85 719 2.96 733 3.08

639 2.77 660 2.92 679 3.06 696 3.19 712 3.32 727 3.44 742 3.56 756 3.68 770 3.80 784 3.92

699 3.65 719 3.82 736 3.98 753 4.13 768 4.27 782 4.40 796 4.54 810 4.67 823 4.81 836 4.94

758 4.70 777 4.89 794 5.06 810 5.23 824 5.39 838 5.54

External Static Pressure (Pa)

275

300

325

350

375

400

425

450

475

500

m /h

RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW)

662 1.92 681 2.03 699 2.15 717 2.26 735 2.36 752 2.48 768 2.59 784 2.69 800 2.81 815 2.91

702 2.48 718 2.59 734 2.70 750 2.82 767 2.94 783 3.08 800 3.20 815 3.33 831 3.46 846 3.59

748 3.19 762 3.30 776 3.42 791 3.54 805 3.66 819 3.79 834 3.92 848 4.05

797 4.05 810 4.17 823 4.30 836 4.43 849 4.55

9870

11280

12690

14100

15510

16920

848 5.08

Standard drive

Oversized drive

Table 14 -TK 155 External static pressure

External Static Pressure (Pa)

125 150

100

175

200

225

250

m /h

RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW)

565 0.7 599 0.77 633 0.85 665 0.93 697 1.02 728 1.1 758 1.19

6800

7650

8500

9350

10200

571 0.82 603 0.9 634 0.99 665 1.07 694 1.16 723 1.25 752 1.34 780 1.44

580 0.97 613 1.07 643 1.16 672 1.25 700 1.34 727 1.43 754 1.53 781 1.63 807 1.73

590 1.13 624 1.24 656 1.35 684 1.46 711 1.55 738 1.65 763 1.75 788 1.86 813 1.96 838 2.07

637 1.44 670 1.57 699 1.69 727 1.81 753 1.92 777 2.02 801 2.13 825 2.24 848 2.35 871 2.46

External Static Pressure (Pa)

275

300

325

350

375

400

425

450

475

500

m /h

RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW)

6800

7650

8500

9350

10200

787 1.28 815 1.37 842 1.46 868 1.54

808 1.53 836 1.63 862 1.74

833 1.83 858 1.93 883 2.04

862 2.18 885 2.29 909 2.4

894 2.58

Standard drive

Oversized drive

RT-SVX19A-E4

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Installation

Table 15 -TK 175 External static pressure

External Static Pressure (Pa)

125 150

100

175

200

225

250

m /h

RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW)

593 0.95 623 1.03 651 1.11 679 1.19 706 1.28 733 1.37 761 1.47 788 1.57 815 1.68

623 1.21 653 1.31 680 1.4 706 1.49 731 1.58 756 1.67 780 1.77 805 1.87 829 1.97 853 2.08

687 1.64 714 1.75 739 1.85 763 1.95 786 2.05 809 2.15 831 2.25 853 2.36 875 2.47 897 2.58

750 2.16 775 2.28 799 2.4 821 2.51 843 2.62 864 2.73 884 2.84 905 2.95 925 3.07 945 3.18

814 2.78 837 2.92 860 3.05 881 3.17 901 3.29 921 3.41 940 3.53 959 3.65 978 3.77 996 3.89

7870

8860

9850

10840

11830

External Static Pressure (Pa)

275

300

325

350

375

400

425

450

475

500

m /h

RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW)

842 1.79 869 1.91 896 2.03 921 2.15 946 2.27 970 2.39 994 2.51 1016 2.63 1038 2.75

877 2.19 901 2.31 925 2.43 949 2.56 973 2.69 997 2.83 1020 2.96 1043 3.1

919 2.7 941 2.82 962 2.94 984 3.07 1006 3.2 1027 3.33

7870

8860

9850

10840

11830

965 3.3 985 3.43 1005 3.55 1025 3.68 1044 3.82

1015 4.02 1033 4.15

Standard drive

Oversized drive

Table 16 -TK 200 External static pressure

External Static Pressure (Pa)

125 150

100

175

200

225

250

m /h

RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW)

512 0.98 542 1.09 571 1.21 600 1.33 629 1.45 656 1.58 684 1.72

8970

10090

11210

12330

13450

519 1.16 547 1.28 575 1.39 601 1.51 627 1.64 653 1.77 679 1.91 704 2.05

528 1.36 557 1.5 584 1.63 610 1.76 634 1.89 658 2.02 682 2.16 705 2.3 729 2.44

537 1.58 568 1.74 596 1.9 622 2.05 647 2.19 670 2.33 692 2.47 714 2.62 735 2.77 757 2.92

580 2.01 609 2.19 636 2.37 661 2.54 684 2.7 706 2.85 728 3.01 748 3.16 768 3.32 788 3.48

External Static Pressure (Pa)

275

RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW)

710 1.86 735 759 2.14 783 2.27 805 2.41 827 2.55

300

325

350

375

400

425

450

475

500

m /h

8970

10090

11210

12330

13450

729 2.2 753 2.35 777 2.5 800 2.66 823 2.81

752 2.6 774 2.75 797 2.92 819 3.08 841 3.25

778 3.08 799 3.24 820 3.4 841 3.57

808 3.64 828 3.81

Standard drive

Oversized drive

RT-SVX19A-E4

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Installation

Table 17 -TK 250 External static pressure

External Static Pressure (Pa)

125 150

100

175

200

225

250

m /h

RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW)

585 1.31 609 1.42 632 1.51 654 1.6 675 1.69 695 1.78

9870

11280

12690

14100

15510

16920

606 1.63 633 1.77 657 1.9 679 2.02 700 2.13 720 2.24 739 2.35

599 1.8 628 1.97 655 2.15 681 2.31 704 2.47 726 2.62 747 2.76 766 2.89 785 3.02

631 2.2 654 2.38 679 2.57 705 2.76 729 2.96 752 3.14 774 3.32 795 3.49 814 3.65 832 3.8

690 2.9 711 3.08 733 3.28 756 3.5 779 3.71 801 3.93 822 4.13 842 4.33

749 3.73 768 3.92 788 4.14 809 4.36

External Static Pressure (Pa)

275

300

325

350

375

400

425

450

475

500

m /h

RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW)

714 1.86 733 1.94 751 2.02 769 2.1 786 2.17 802 2.25 818 2.32 834 2.39 849 2.46 864 2.53

757 2.45 775 2.55 793 2.65 810 2.74 827 2.84 843 2.93 859 3.02 874 3.11 889 3.19 904 3.28

803 3.14 820 3.26 837 3.38 853 3.49 869 3.61 885 3.72 901 3.83 916 3.93 931 4.04

850 3.95 866 4.09 883 4.23 898 4.37

9870

11280

12690

14100

15510

16920

Standard drive

Oversized drive

Table 18 - WK 125 External static pressure

External Static Pressure (Pa)

125 150

100

175

200

225

250

m /h

RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW)

562 0.55 601 0.63 639 0.71 675 0.8 709 0.89 741 0.98

8970

10090

11210

12330

13450

548 0.6 584 0.68 620 0.76 655 0.84 690 0.93 723 1.03 755 1.13

544 0.68 578 0.75 611 0.83 644 0.91 676

708 1.09 739 1.19 770 1.29

542 0.77 577 0.85 609 0.93 640 1.01 670 1.1 700 1.19 730 1.28 759 1.38 788 1.48

541 0.85 578 0.96 612 1.05 643 1.14 671 1.23 699 1.32 727 1.41 755 1.51 782 1.61 809 1.71

External Static Pressure (Pa)

275

300

325

350

375

400

425

450

475

500

m /h

RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW)

772 1.06 802 1.15 830 1.24 857 1.33 883 1.41 909 1.5 933 1.59 957 1.68

786 1.23 815 1.32 843 1.42 871 1.52 897 1.62 922 1.72 947 1.82

800 1.4 829 1.51 857 1.62 884 1.73 911 1.84 936 1.94 960 2.05

816 1.59 844 1.7 872 1.82 898 1.94 925 2.06 950 2.18

5720

6430

7140

7850

8560

835 1.82 862 1.94 888 2.05 913 2.18 939 2.3

Standard drive

Oversized drive

RT-SVX19A-E4

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Installation

Table 19 - WK 155 External static pressure

External Static Pressure (Pa)

125 150

100

175

200

225

250

m /h

RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW)

566 0.7 599 0.77 632 0.85 664 0.93 696 1.02 727 1.11 757 1.2

6800

7650

8500

9350

10200

571 0.82 604 0.9 634 0.99 664 1.07 694 1.16 723 1.25 751 1.34 779 1.44

578 0.95 612 1.05 644 1.15 673 1.25 700 1.34 727 1.43 754 1.53 780 1.63 806 1.73

586 1.09 622 1.22 655 1.33 685 1.44 712 1.55 739 1.65 764 1.75 788 1.86 813 1.96 837 2.07

633 1.39 667 1.53 698 1.66 726 1.78 753 1.9 778 2.02 803 2.13 826 2.24 848 2.35 871 2.47

External Static Pressure (Pa)

275

300

325

350

375

400

425

450

475

500

m /h

RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW)

6800

7650

8500

9350

10200

787 1.29 816 1.38 843 1.47

807 1.54 834 1.64 861 1.74

832 1.83 857 1.94 882 2.04

861 2.18 884 2.29

893 2.58

Standard drive

Oversized drive

Table 20 - WK 200 External static pressure

External Static Pressure (Pa)

125 150

100

175

200

225

250

m /h

RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW)

521 1.01 550 1.12 579 1.24 608 1.36 636 1.49 664 1.62 691 1.76

8970

10090

11210

12330

13450

14570

15690

16810

529 1.2 557 1.32 584 1.44 610 1.56 636 1.68 662 1.82 687 1.95 712 2.1

540 1.42 569 1.56 595 1.69 621 1.82 645 1.95 669 2.08 692 2.22 715 2.36 738 2.51

552 1.66 582 1.82 610 1.98 635 2.13 659 2.27 681 2.41 704 2.55 725 2.7 747 2.85 768

597 2.11 625 2.3 651 2.47 675 2.64 698 2.8 720 2.95 741 3.11 761 3.26 781 3.42 801 3.58

638 2.59 666 2.8 692 3.01 716 3.2 740 3.39 762 3.58 783 3.75 803 3.92

677 3.1 707 3.37 735 3.61 761 3.85

715 3.66 748 3.98

External Static Pressure (Pa)

275

300

325

350

375

400

425

450

475

500

m /h

RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW) RPM (kW)

717 1.9 742 2.04 766 2.17 789 2.31 811 2.45 833 2.58

737 2.25 761 2.4 785 2.56 808 2.71 830 2.87

761 2.66 784 2.82 806 2.98 828 3.15

8970

10090

11210

12330

13450

14570

15690

16810

789 3.16 810 3.32 831 3.49

820 3.75 840 3.91

Standard drive

Oversized drive

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Installation

Over current protection

Electrical connection

The branch circuit feeding the unit

must be protected in accordance

with national or local codes and

max unit amps indicated inTable 21

to 28.

The electric panel is located in the

unit compressor section. Remove

the compressor access panel. The

unit is designed to run with 400 V

+/- 5%/50 Hz/ 3 ph.

Power wiring

Factory supplied Disconnect switch

(Option)

The unit power supply must be

provided by 4-wire cable with cross-

sectional areas complying with

legislation.

The disconnect switch is factory

mounted. It is located on the side of

the Electrical panel and equipped

with fuses as standard.

The power supply cables must be

laid in leak-tight pipes and pass

through the bottom of the electric

panel.The cables must not be taut.

Appropriate connectors must be

provided. Flexible pipe supports are

required to prevent noise

transmission in the building

structure. Ensure all the connections

are tightened.

Note:

Figure 10 - Power supply

1. earthing must be executed in

accordance with local legislation.

2. the machines are designed for a

short-circuit current of 10 kA. In

the event of a higher application,

contact yourTrane sales office.

TKD/TKH, WKD/WKH units:

YKD/YKH units:

1 = Power supply from the bottom or from the side.

RT-SVX19A-E4

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Installation

Scroll compressors

The direction of rotation may be

reversed by interchanging any two

of the line wires. It is this possible

interchange of wiring that makes a

phase sequence indicator necessary

if the operator is to quickly

Compressor electrical phasing

Proper phasing of the electrical

power wiring is critical for proper

operation and reliability of the scroll

compressor and fans.

determine the phase rotation of the

compressor motor.

Proper rotation of the scroll

compressor must be established

before the unit is started.This is

accomplished by confirming that

the electrical phase sequence of the

power supply is correct.The motor

is internally connected for clockwise

rotation with the inlet power supply

phased A, B, C.

The "ABC" indicator on the face of

the phase indicator will glow if

phase is ABC for terminals L1, L2,

L3.

CAUTION! After completion of

wiring, check all electrical

connections, and ensure all

connections are tight. Replace and

secure all electrical box covers and

access doors before leaving unit or

connecting power to circuit

supplying unit.

CAUTION! Units with Scroll

compressors are not equipped with

crankcase heaters.

Table 21 - Electrical data -YKD/YKH Unit Wiring

Electrical Characteristics Unit amps

Standard Evaporator

Fan Motor

Maximum

WARNING !

Disconnect all power,including

remote disconnects, and discharge

all capacitors before servicing.

Follow proper lockout/tagout

procedures to ensure the power

cannot be inadvertently energized.

After power is removed, allow

4 minutes for capacitors to

Oversized Evaporator

Fan Motor

Maximum

Overcurrent

Protective

Device (Fuse

or Circuit

Overcurrent

Protective

UNIT

MPS

Minimum

Circuit

Ampacity

Minimum

circuit

Device (Fuse

ampacity

or Circuit

Breaker)

discharge. Verify with an

Without Electric heat option

appropriate voltmeter that all

capacitors have discharged. Failure

to disconnect power and/or

discharge capacitors before

servicing could result in death or

serious injury. For additional

information regarding the safe

discharge of capacitors, seeTrane

Service Bulletin PROD-SVB06A.

TKD/H 155

TKD/H 175

TKD/H 200

TKD/H 250

WKD/H 125

WKD/H 155

WKD/H 200

YKD/H 155

YKD/H 175

YKD/H 200

YKD/H 250

400/3/50

36.9

41.9

44.5

46.4

31.9

35.1

50.4

35.6

42.3

44.6

46.4

33.8

50.9

37.5

43.2

45.1

With Electric heat

TKD/H 155

TKD/H 175

TKD/H 200

TKD/H 250

WKD/H 125

WKD/H 155

WKD/H 200

400/3/50

125

400/3/50

69.9

73.1

105

125

71.2

104.5

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Installation

Table 22 - Electrical data -TKD/TKH Compressor motor and condenser motor

YKD/H

175

YKD/H

200

YKD/H

250

155

Compressor

Number

Type

Scroll

Model

9T / 5T

15.0 / 8.5

118 / 65.5

10T / 6.7T

15.1 / 11.4

118 / 101

9T / 9T

14.7 / 14.7

118 / 118

10T / 10T

15.3 / 15.3

118 / 118

Nominal Amps (1)

Locked rotor Amps (2)

(A)

Outdoor Fan

Nominal Airflow

Type

(m /h)

15350

Axial

660

Direct

19750

Axial

660

Direct

21000

Axial

710

23500

Axial

710

Diameter

(mm)

Drive type

Direct

Number / Voltage

Motor HP

(kW)

(A)

0.25

1.6

0.25

1.6

0.56

2.3

0.56

2.3

Motor Rated Amps (1)

Motor Locked rotor Amps (2)

Motor RPM

(A)

3.8

5.8

(rpm)

925

(1) At Eurovent rating conditions : Indoor return Air (27°C DB / 19°C WB) - Ambiant 35°C

(2) per motor

Table 23 - Electrical data -YKD/YKH Compressor motor and condenser motor

TKD/H

175

TKD/H

200

TKD/H

250

155

Compressor

Number

Type

Scroll

Model

9T / 5T

15.0 / 8.5

118 / 65.5

10T / 6.7T

15.1 / 11.4

118 / 101

9T / 9T

14.7 / 14.7

118 / 118

10T / 10T

15.3 / 15.3

118 / 118

Rated Amps (1)

Locked rotor Amps (2)

(A)

Outdoor Fan

Nominal Airflow

Type

(m /h)

(mm)

15350

Axial

660

Direct

19750

Axial

660

Direct

21000

Axial

710

23500

Axial

710

Diameter

Drive type

Direct

Number

Motor HP

(kW)

(A)

0.25

1.6

0.25

1.6

0.56

2.3

0.56

2.3

Motor Rated Amps (1)

Motor Locked rotor Amps (2)

Motor RPM

(A)

3.8

5.8

(rpm)

925

(1) At Eurovent rating conditions : Indoor return Air (27°C DB / 19°C WB) - Ambiant 35°C

(2) per motor

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Installation

Table 24 - Electrical data - WKD/WKH Compressor motor and condenser motor

WKD/H

155

WKD/H

200

125

Compressor

Number

Type

Scroll

Model

6T / 6T

10.0 / 10.0

74 / 74

7.5T /7.5T

12.1 / 12.1

79 / 79

10T / 10T

17.5 / 17.5

98 / 98

Rated Amps (1)

Locked rotor Amps (2)

(A)

Outdoor Fan

Nominal Airflow

Type

(m /h)

15300

Axial

660

Direct

15850

Axial

660

Direct

23600

Axial

710

Diameter

(mm)

Drive type

Direct

Number

Motor HP

(kW)

(A)

0.25

1.6

0.25

1.6

0.56

2.3

Motor Rated Amps (1)

Motor Locked rotor Amps (2)

Motor RPM

(A)

3.8

5.8

(rpm)

925

950

(1) At Eurovent rating conditions : Indoor return Air (27°C DB / 19°C WB) - Ambiant 35°C

(2) per motor

Table 25 - Electrical data -TKD/TKH Supply fan motor

YKD/H

155

YKD/H

250

175

200

Indoor Fan

Nominal Airflow

(m /h)

8500

150

9850

11210

175

14100

Static pressure available (4)

Maximum static pressure available (5)

Type

(Pa)

350

375

450

375

FC Centrifugal

15" / 15"

Belt

FC Centrifugal

15" / 15"

Belt

FC Centrifugal

18" / 18"

Belt

FC Centrifugal

18" / 18"

Belt

Diameter / Width

(in / in)

Drive type

Number

Motor HP (Standard/Oversized)

Motor Rated Amps (Standard/Oversized)

(kW)

(A)

2.2 / 3.0

4.6 / 6.5

36.4 / 57

1450 / 2870

3.0 / 4.6

6.5 / 9.0

57 / 71.9

2870 / 2900

3.0 / 4.6

6.5 / 9.0

57 / 71.9

2870 / 2900

4.6 / -

9 / -

Motor Locked rotor Amps (Standard/Oversized) (A)

71.9 / -

2900 / -

Motor RPM (Standard/Oversized)

(rpm)

(4) At the nominal airflow with standard drive

(5) At the nominal airflow with oversized drive when available

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Installation

Table 26 - Electrical data -YKD/YKH Supply fan motor

TKD/H

155

TKD/H

175

TKD/H

200

TKD/H

250

Indoor Fan

Nominal Airflow

(m /h)

8500

175

9850

250

11210

200

14100

125

Static pressure available (4)

Maximum static pressure available (5)

Type

(Pa)

325

400

375

350

FC Centrifugal

15" / 15"

Belt

FC Centrifugal

15" / 15"

Belt

FC Centrifugal

18" / 18"

Belt

FC Centrifugal

18" / 18"

Belt

Diameter / Width

(in / in)

Drive type

Number

Motor HP (Standard/Oversized)

Motor Rated Amps (Standard/Oversized)

(kW)

(A)

2.2 / 3.0

4.6 / 6.5

36.4 / 57

1450 / 2870

3.0 / 4.6

6.5 / 9.0

57 / 71.9

2870 / 2900

3.0 / 4.6

6.5 / 9.0

57 / 71.9

2870 / 2900

4.6 / -

9 / -

Motor Locked rotor Amps (Standard/Oversized) (A)

71.9 / -

2900 / -

Motor RPM (Standard/Oversized)

(rpm)

(4) At the nominal airflow with standard drive

(5) At the nominal airflow with oversized drive when available

Table 27 - Electrical data - WKD/WKH Supply fan motor

WKD/H

155

WKD/H

200

125

Indoor Fan

Nominal Airflow

(m /h)

7140

200

8500

175

11210

200

Static pressure available (4)

Maximum static pressure available (5)

Type

(Pa)

425

325

350

FC Centrifugal

15" / 15"

Belt

FC Centrifugal

15" / 15"

Belt

FC Centrifugal

18" / 18"

Belt

Diameter / Width

(in / in)

Drive type

Number

Motor HP (Standard/Oversized)

Motor Rated Amps (Standard/Oversized)

Motor Locked rotor Amps (Standard/Oversized)

Motor RPM (Standard/Oversized)

(kW)

(A)

2.2 / 3.0

4.6 / 6.5

36.4 / 57

1450 / 2870

2.2 / 3.0

4.6 / 6.5

36.4 / 57

1450 / 2870

3.0 / 4.6

6.5 / 9.0

57 / 71.9

2870 / 2900

(A)

(rpm)

(4) At the nominal airflow with standard drive

(5) At the nominal airflow with oversized drive when available

Table 28 - Electrical data - Combustion Blower Motorr

YKD/H

175

YKD/H

200

YKD/H

250

155

Gas burner

Heating Models

G350

Heating Input (G20)

Heating Output

(kW)

(%)

69.3

Steady State Efficiency

No. Burners

No. Stages

Gas Connection Pipe Size

3/4" NPT

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Controls

TraneTHS01,THS02,THP01 and

THP02Thermostats are directly

connected to RTRM board

(J7 connector).TRANETHS02 and

THP03 thermostats are directly

connected to RTRM board

(J6 connector).

Control wiring

The control circuit is 24 V AC. Unit

includes a 400/24 V transformer.

WARNING!The unit disconnect

switch must be opened and locked

open. Risk of injury and

electrocution.

Install the electrical link between the

thermostat (thermostat terminal

strip) and the unit (J6 or J7

CAUTION!The unit 24 V transformer

must not be used to power

connector) in compliance with the

interconnection diagram.The low

voltage wiring must not be laid in

the same pipes as the power cables.

accessories mounted on site, other

than those proposed byTrane.

Unit controlled by thermostat

Figure 11 -Thermostat wiring

The sizes and lengths of the

thermostat connection wires are

given inTable 29.The total

resistance of these control cables

must not exceed 5 ohms. If the

resistance exceeds this value the

thermostat may not operate with

the same precision.

RTRM

3J6

THP03

SR6

Table 29 - Zone sensor wire size and

maximum length

RTRM

3J6

SR6

Maximum length

THS03

Zone sensor wire size

Wire

size

(mm²)

Maximum

wire lengh

(m)

(WH)

(GN)

(RD)

(BK)

THA01

THS/THP 03

0.33

0.5

0.75

1.3

115

185

300

RTRM

3J7

Conventionnal

thermostat

THS/THP 01-02

0.33

0.5

0.75

1.3

THS02

4239070

THP02

4240530

24V

24V(C)

COM

RTRM

3J7

THS01

4239060

THP01

4240520

24V

COM

24V(C)

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Unit controlled by BAS

Unit controlled byTracker™

supervisor

Each unit must be equipped with a

TCI-R board. A communication bus

(twisted shielded pair) must link

eachTCI-R to theTrane RoofTop

Manager (RTM) or to the

The units must also be equipped

with theTCI-R communication

board. One remote sensor is

required on each unit for a constant

flow volume. In the case of a

variable flow installation

(VariTrac™) these sensors must not

be installed. A twisted shielded pair

must be used for the

communication link.The main

functions of theTracker™ supervisor

are control of setpoints, timetable

management (Programming) and

display of faults. For more details

refer to the supervisor

communication gateway (in the

case of an external BAS). Connect

one temperature sensor to each

unit. LonTalk communication

interface LTCl-R board allows ICS

communication between a

ReliaTel™ unit and LonTalk

communication applications.

documentation.

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Controls

CO sensors

Wall-mounted and duct-mounted

CO sensors

Table 30 - Specifications

WaII-mounted

Duct-mounted

Measuring range CO

0-200 ppm

<+/- [30 ppm CO

+ 2%

of reading]

(included

repeatability and

caiibration

<+/- [40 ppm CO +

of reading]

(included repeatability

and calibration

uncertainty)

Accuracy at 25°C

Non-linearity

uncertainty)

<1.0% full scale

Ternperature dependence

of output

0.3% full scale/°C

<5.0% fulI scale /

5 years

Long-term stability

Recomrnended

calibration interval

5 years

Response time

1 minute (0-63%)

15-35°C

Operating temperature

Storage temperature

- 5-45°C

-20-70°C

0-85% relative

humidity

Humidity range

Airflow range

0-10 m/s)

Output signals (jumper

selectable)

0-10Vdc

Resolution of anaIog

outputs

10 ppm CO2

Recomrnended external

load

Current output:

max 500

Voltage output:

min. 1000

Power supply

Nominal 24Vac

<5 VA

Power consumption

Warm-up time

<15 minutes

108 x 80 x 36

Dimensions (mm)

80 x 80 x 200

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Controls

Power supply requirements

Wiring the duct-mounted CO

sensor

1. Connect the DCV signal lwire to

the connector DCV of the ECA

2. Connect the power according to

the guidelines in Power supply

requirements.

CAUTION! Make sure that you

connect the power wire only to the

24V terminal. Connecting the power

wire to the output terminal may

result in equipment damage.

The CO sensor is designed to

To connect the wall mounted CO

sensor, Refer to the wiring diagram

provided in the unit.

operate with a nominal 24 Vac

supply.The power supply should

maintain the voltage between 20 to

26 Vac.

Mounting the wall-mounted sensor

1. Select a proper location in the

Table 31 - CO sensor wire size

room to mount the CO sensor.

Cross

Maximum wire

section

Iength

Look for an interior wall with

good air circulation,

approximately 1.4 m from the

floor.

(mm2)

(mn)

0.25

0.5

100

200

2. Remove the back plate from the

sensor and thread the power

wires and output signal wire

through the hole in the back

plate.

Wiring the wall-mounted CO

sensor

For surface wiring, make cut-

outs with pliers to the thinner

section of the upper or lower

edge of the back plate and to

thread the wires through.

DVC setpoint potentiometer on

economizer module can be adjusted

as follows:

0% - 500ppm, 50% - 1000 ppm,

100% - 1500ppm

3. Mount the back plate to the wall

with screws. Note that the arrow

on the back plate shows the

mounting direction.

The outside air damper will

modulate from minimum position

setting to up to 100% while

attempting to maintain the CO

setpoint.

To connect the wall mounted CO

sensor, Refer to the wiring diagram

provided in the unit.

Figure 12 - Jumper settings

OUTPUT

SELECTION

JUMPERS

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Controls

Mounting the duct-mounted CO

sensor

1. Select a proper location on the

CO sensor maintenance

This CO sensor has excellent

stability and requires no

duct to mount the CO sensor.

maintenance. In most environments

the recommended calibration

interval is five years. A trained

service technician can use a

2. Drill a 22-25 mm hole in the

mounting surface for sensor

insertion (Figure 13).

portable CO meter to certify sensor

3. Attach the mounting plate to the

duct wall with four screws.

4. Insert the sensor through the

mounting plate, adjusting the

depth for optimal air sensing.

calibration. If, when checking the

sensor, the reading differs too much

from the reference value, the sensor

can be recalibrated in the field. A

calibration kit, software, and

calibration gases are required. If

certified accuracy is required, the

sensor must be calibrated against

accurate and traceable calibration

gases in a laboratory. ConsultTrane

BAS for further details.

Figure 13 - Duct-mounted CO sensor

1 /8 in.( 42 mm)

/8 in.(2 2 mm)

1 /8 in.

(42 mm)

Figure 14 - Duct-mounted CO insertion depth

2 /2 in.(64 mm)

3 /8 - 5 /2 in. (80 - 140mm)

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Controls

Note:This potentiometer allows to

adjust the permanent fresh air

intake from 0 to 50%.

Remote potentiometer

To install the remote potentiometer,

cut the jumper WL on the

economizer ECA board, and connect

the wires to P and P1.

0 W corresponds to closed fresh air

damper.

270 W corresponds to 50% open

fresh air damper.

Note:This potentiometer allows to

adjust the permanent fresh air

intake from 0 to 50%.

0 W corresponds to closed fresh air

damper.

270 W corresponds to 50% open

fresh air damper.

Figure 15 - Remote potentiometer dimensions

Figure 16 - Remote potentiometer wiring

1 = Remote potentiometer

2 = ECA Board

WH = White wire

RD = Red Wire

BU = Blue wire

_____ Factory wiring

-------- Field wiring

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Note: Do not permit element guard

to touch internal parts. Do not

locate sensor where the air

Fire thermostat

There are two sensors in the fire

thermostat Kit: Sensor X13100040-

01 is factory-set to open at 57°C.

Sensor X13100040-02 is set to open

at 115°C.

circulation is restricted by baffles.

Connection of the fire thermostat

withTCI board : Refer to the wiring

diagram provided in the unit.

Sensors are mounted directly in the

ductwork.They should be installed

where elements can respond quickly

to air temperature changes. If not

possible, the sensor may be

installed on a suitable bracket so

the air is drawn across the element.

Sensor X13100040-01 has to be

mounted in the return air duct.

Sensor X13100040-02 has to be

mounted in the supply air duct.

Connection withoutTCI board

Connect according to the standard

wiring diagram provided on the

unit.

Remove sensor cover and fasten

control securely with screws. Loads

connected must not exceed 2 amps,

30V Ac.

Figure 17 - Duct mounting of fire thermostat

1 = Fire thermostat

2 = Hole in the duct

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Controls

Clogged filter detector

High temperature safety

thermostat

This additional safety device is a

manual reset thermostat for gas

fired units (YKD/YKH), required

mainly by the French ERP

regulation. It is located in the gas

burner section. It stops the gas

burner and the supply air fan when

the supply air temperature rises to

120°C.

Thermostats

6 thermostats are available:

This device is mounted in the filter

section.The sensor measures the

difference in pressure before and

after the filter section.The

information is sent to theTHP03

thermostat, to aTracker™ or to a

BMS.

THS01/THP01,THS02/THP02 and

THS03/THP03.

"THS" are non programmable

thermostats, "THP" are

programmable.

01 and 02 series are conventional

thermostat, 03 series are dedicated

to the controller.

Smoke detector

This device is used to detect smoke

in the air stream. It includes a

factory mounted detector connected

to a central panel, both fitted in the

fan section.

Remote fault relay

This is a factory mounted relay used

to send alarm signals (dry contact)

to a local BMS or a local control

panel. With this relay, the

compressor, heating, fan and power

supply alarm output signals from

the controller are reported to a

single dry contact.

When smoke is detected, it shuts off

the unit. A dry contact is available

on the control panel for a remote

default.

Table 32 -Thermostats features

THS01

THP01

THS02

THP02

THS03

THP03

non-programmable

programmable

electronic

unit control type design

interface card needed

for Cooling Only units

for Heat Pump units

for Gas Fired units

Cooling stages

electromech.

Reliatel

CTI*

none

auxiliary heating stages

(elec. heater, HWC )

heating stages

(heat pump mode)

none

liquid crystal display

*some important features are lost while using the CTI card.

Note: thermostats are powered up by the rooftop control (24V)

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Controls

Other accessories available

Communication Interfaces

TRANE Communication Interface

(TCI-R) board

Remote temperature sensor to be

used withTHS/THP 01-02

TZS01: Remote room temperature

sensor to be used withTHS/THP 03,

Tracker or Varitrac systems.

This is an electronic board, factory-

mounted in the main control panel,

needed to allow communication

between aTRANE Integrated

Comfort system (TRACKER or

Varitrac CCP2) and the unit. (COM3-

COM4)

DTS: Duct temperature sensor to be

used withTHS/THP 03

TZS02: Remote room temperature

sensor with adjustable thumwheel

setpoint to be used withTracker or

Varitrac systems

LON Communication Interface

(LCI-R) board

TZS04: Room temperature sensor

with adjustable thumbwheel and

override button, to be used with

Tracker or Varitrac systems

This is an electronic board, factory-

mounted in the main control panel,

needed to allow communication on

a LonTalk Network at the unit level.

Refer to separate documentation for

more information.

LonTalk . Communication Interface

(LCI-R) board

This interface board allows Voyager

units to communicate on a LonTalk

Network at the unit level. Network

variables are based on the

LonMark . Space Comfort Controller

Functional ProfileTemplate.The LCI-

V uses a FreeTopology transceiver

FTT-10A.The FTT-10A transceiver

supports non-polarity sensitive, free

topology wiring, allowing the

system installer to use star, bus,

and loop architecture.The LCI-V can

also be connected to an optional

HighTemperature Limit Switch if

installed with the rooftop unit. For

more information, see attached

manual LTCI-IN-1.

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Unit Options

Hot water coil: Installation and

connection

Hot water coil

(Down flow units only)

In order to prevent water to freeze

up in the coil during unoccupied

period or shutdown limited period,

it is recommended to use ethylene

glycol.The services of a water

treatment specialist are

recommended if water used can

cause scaling deposits or erosion.

Insulate all the water piping likely to

be exposed to freezing

temperatures in order to avoid

freeze up of the coil and heat losses.

The water distribution network must

be fitted with vents in places where

air is likely to be trapped.

In order to prevent water to freeze

up in the coil during unoccupied

period or shutdown limited period,

a thermostat opens when there is a

risk of freeze-up.The services of a

water treatment specialist are

recommended if water used can

cause scaling deposits or erosion.

Insulate all the water piping likely to

be exposed to freezing

temperatures in order to avoid

freeze up of the coil and heat losses.

The water distribution network must

be fitted with vents in places where

air is likely to be trapped.

The hot water coil is factory

Table 33 - Ethylene glycol percentage

mounted in the discharge section.

Two holes are provided to connect

the hot water coil.They are located

at the base of the unit. Remove the

central panel to access the coil,

using an 8 mm wrench (the bolts

are located on the bottom part of

the panels).The tubes for entering

and leaving water are equipped

with a threaded female connector.

Ethylene glycol

Freezing point

percentage

(%)

(°C)

-4

-10

Water connection inlet/outlet: 1 ¼"

ISO R7.

Figure 18 - Hot water coil connections

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Unit Options

Electric Heater

Soft Starter

Electric heaters are fitted on the fan

discharge.

The soft starter is used to achieve a

progressive supply fan start and a

reduced starting current as well as

the motor starting torque.This

option is well adapted for textile

duct applications. It is factory

Heaters have two heating stages

and provided with two types of

overheat thermostats:

•

Automatic reset thermostats

which stop the electric heater

when the air temperature rises to

76°C. Automatic reset at 60°C. No

alarm output available.

installed in the main control panel.

The soft starter gradually increases

the voltage of the supply fan motor

until it reaches full line voltage.

•

The manual reset thermostat

which stop the unit when the air

temperature rises to 120°C. No

alarm output available.

The starting time can be adjusted

from 0 to 64 seconds but the soft

starter is factory set to the

maximum starting time value,

64 seconds.

Figure 19 - Soft starter

Supply

Start / Line

Stop / Load

Urg.

Stop

Motor

Softstarter

Ctrl

Byp.

Diag.

INITAL

TORQUE

Time(s)

1 =Three phase mains connections

2 = Motor connections

3 = Settings

4 = Status outputs

5 = Controls

6 = LEDs

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Unit Options

This option includes for the hood

itself, a wire mesh and a slidable

damper.

0 - 25% fresh air hood

The 0-25% fresh air hood allows to

introduce fresh air into the unit.

The slidable damper has to be

adjusted manually by removing the

screws and sliding it off up or down

(Figure 20).

This is a manual device fitted on the

back of the unit, sized for a

maximum of 25% of the nominal

rooftop air flow.

The amount of fresh air introduced

is then permanently fixed.

Figure 20 - 0-25% manual fresh air hood

1 = Intake hood

2 = Wire mesh

3 = Slidable damper

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Unit Options

This option includes exhaust hoods

and gravity dampers located in the

return air section (Figure 22). When

the pressure of the building

increase, the gravity dampers open

and relieve air to the outside.

Barometric relief

The barometric relief allows to

minimize overpressure in the

building caused by the introduction

of fresh air.This option is typically

installed when fresh air intake is

below 25% of the nominal air flow

and when the return air pressure

drop is below 25Pa.

If the return air duct pressure drop

is higher than the building

overpressure, the gravity dampers

will not open.

If the return air duct pressure drop

is lower than the building

overpressure, the gravity dampers

will open and releive air outside of

the building.

Figure 21 - Economizer flow chart with barometric relief

Downflow version

Horizontal flow version

R = return

S = supply

F = fresh air

E = exhaust

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Operation

•

Remote Sensing Capabilities are

not available on most

mechanical thermostats.

SpaceTemperature Averaging

capabilities are not available on

most mechanical thermostats.

27½ to 50 VAV – Conventional

thermostat input terminals are

inactive.

Built in Night Set Back and

Unoccupied Functions function

differently with a conventional

mechanical thermostat.

A built-in algorithm which allows

for automatic reset of the

Customers occasionally require

operation with a conventional

thermostat rather than a zone

sensor. In some cases there is a

preference for a specific thermostat

model, and in others there is

reluctance to adopt newer

technology that may not be as well

understood as conventional

thermostats. In addition, non-Trane

Building Controllers typically

provide an interface to HVAC

equipment based on a conventional

thermostat interface. Units applied

with this type of controller need to

accept conventional thermostat

inputs.

Operation with a

conventional thermostat

The ReliaTel module has

conventional thermostat

connections as well as Zone Sensor

Module connections. When a

conventional thermostat is

controlling the unit, operation

differs as follows.

•

Supply AirTempering feature is

not available. If outdoor air is

being introduced through the

equipment, discharge air

•

temperature may be cold when

not actively heating.

discharge air temperature while

economizing is not available.

•

Proportional Integral (PI) control

is not available.

Conventional thermostat signals

represent direct calls for unit

functions. In their simplest

applications, thermostat contacts

directly control contactors or other

load switching devices.This function

provides inputs for the thermostat

signals and processing to enhance

reliability and performance.

The terminal strip for attaching the

thermostat wires is located on the

RTRM module in the control

compartment.

Zone Sensor Diagnostics are

only available on the RTRM

module on the J6 terminals,

instead of at the Zone Sensor in

the space.

The purpose of each terminal is

discussed in the next section.

•

Intelligent Fall-Back is not

available. If a failure occurs in

the device controlling the

COM

Compressor protection and

equipment, operation will cease.

reliability enhancement functions

(HPC, LPC, Minimum On/Off timers,

etc.). All operate the same whether

applied with zone sensors or a

conventional thermostat.

Heat Pump Smart Recovery and

Smart Staging is not available.

Heat Pump operation becomes

more costly unless the generic

control being applied can

accomplish this.

Logic is also provided to cause

appropriate unit functions when

inappropriate thermostat signals are

provided. Simultaneous calls for

heating and cooling will be ignored,

and the fan will be turned on with a

call for heating or cooling even if

the fan request is not detected.

W1/0

If the thermostat is immediately

changed from a heating to a cooling

call, or vice versa, there will be a

five minute delay before the new

call will initiate.

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Operation

Thermostat signals are as follows:

Conventional thermostat –

Gas/ Electric, Electric Heat:

Conventional thermostat –

Heat Pump

R 24VAC power to thermostat

Function when

Input/connection energized

Y1 Call for compressor 1 or first

stage cooling

Function when

Input/connection energized :

Cooling mode:

G (fan)

Fan runs continuously

except during

unoccupied mode

(see next page)

Y2 Call for compressor 2 or 2nd

stage cooling

Fan runs continuously

except during

unoccupied mode

(see next page)

G Call for supply fan

W1 Call for heat 1

Y1 (compressor 1 Compressor #1 runs

or economizer)

or economizer

operates

O (reversing valve Reversing valve in

W2 Call for heat 2

during cooling)

cool mode

Heat pump only:

Y1 + O

Compressor #1 runs

Y2 (compressor 2 Compressor #2 also

or compressor 1 runs, or #1

while economizing)compressor runs

while economizing

(first stage cooling) or economizer

operates

Y1 +Y2 + O

X2 Call for emergency heat

O Switchover valve On = cooling,

Off = heating

Compressor #2 also

runs, or #1

(2nd stage cool)

W1 (gas / electric 1st stage heat

heat first stage)

compressor runs

while economizing.

T Bias for heat anticipation for those

mechanical thermostats that use

this function

W2 (gas / electric 2nd stage heat (if

Heating mode:

G (fan)

heat 2nd stage)

available)

Fan runs continuously

except during

unoccupied mode

(see below)

Y1 (both

Both compressors

compressors 1st run

stage heat)

Y2 (during heating No change

– nothing happens)

W2 (electric heat 2nd stage (electric)

2nd stage)

X2 (electric heat Electric heat only –

only) no compressors

heat

T (provides heat anticipation signal for

those mechanical thermostats that use this

feature. If the thermostat used does not

have a “T” terminal, disregard this

terminal.

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Operation

Unoccupied mode:

Cooling/Economizer Operation:

If the thermostat being used is

programmable, it will have its own

strategy for unoccupied mode and

will control the unit directly. If a

mechanical thermostat is being

used, a field applied time clock with

relay contacts connected to J6-11

and J6-12 can initiate an

If unit does not have an economizer,

the Cool/Econ Stage 1 and Stage 2

will call directly for mechanical

cooling (compressor) stages. If the

unit has an economizer, the

Cool/Econ stages will function as

follows.

unoccupied mode as follows:

•

Contacts open: Normal occupied

operation.

Contacts closed: Unoccupied

operation as follows - Fan in

auto mode regardless of fan

switch position. Economizer

closes except while economizing

regardless of minimum position

setting.

Table 34 - Cooling/Economizer Operation withThermostat1,2

OK to

Thermostat Thermostat Call for Economizer Compressor Staging

Economize?

Cooling

Request

Off

Inactive

Compressor Output 1

Off

Inactive

Compressor Output 2

Compressor

Outputs 1 & 2

Yes

Off

Active

Off

Compressor off

Compessor

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Operation

Table 35 - ECA board LED

Setting the economizer

or 0-50% motorized hood

(option)

OFF:

ON:

No Power or Failure

Normal, OK to Economize

Slow Flash: Normal, Not OK to

Economize

The ECA board is mounted on the

damper actuator.To access the ECA

board on economizers:

Fast Flash: Communications Failure

Pulse Flash: Error Code:

1 Flash:

Actuator Fault

•

Remove the access panel located

on the economizer section.

The electrical power must be

disconnected to set the

minimum position and check the

economizer.

Disconnect the power supply,

put the thermostat fan selector

to "ON" and the "HEAT/COOL"

selector to "OFF".This puts the

damper in the minimum

2 Flashes:

3 Flashes:

4 Flashes

5 Flashes:

6 Flashes:

7 Flashes:

8 Flashes:

9 Flashes:

C0 Sensor

•

RA Humidity Sensor

RATemp Sensor

OA Quality Sensor

OA Humidity Sensor

OATernp Sensor

MATemp Sensor

RAM Fault

•

10 Flashes: ROM Fault

ventilation position.

11 Flashes: EEPROM Fault

To set the required minimum

ventilation air position, turn the

dial on the ECA clockwise to

increase ventilation, or anti-

clockwise to decrease ventilation.

The damper will open at this

setting whenever the fan circuit

is powered up.

When the arrow on the dial

adjustment screw is pointing to 8

o'clock, the minimum position is

roughly 0%. When the dial is

pointing to 12 o'clock it is

roughly 25%, and when the dial

is pointing to 4 o'clock it is

roughly 50%

While setting the minimum position

the damper may move toward the

new setting in several small steps.

Once the damper has remained in

the same position for 10 to

15 seconds it can be assumed it is

in the new position.

•

To check the damper is functioning

correctly, the ECA is equipped with

an indicator light in the middle of

the board.This light operates as in

Table 35.

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Operation

Figure 22 - Minimum fresh air adjustment

2-10 VDC

POWER EXHAUST

POWER EXAHUST

EXF

MAT

FEEDBACK

CONTACTS

INPUT

MIXED AIR SENSOR

MIXED AIR SEENNSSOORR IINNPPUUTT

2-10 VDC

INPUT COMMON

COMMON

CONTROL

OUTPUT

COMMON

OAH/

OAE

OHS INPUT

CONN

EDT

-A

RMTO

ISIS

OAT

RAT

MIN POS.

SETPOINT

RA INPUT

0-50%

RA INPUT

0-50%

COMMON

GREEN

LLEEDD

COMMON

GREEN

ABCD

SETTINGS

ININ

RAH/

RAE

CO2 "PURGE"

CO2 “PURGE”

SETPOINT

ADJUSTMENT

500-1500 PPM

SETPOINT

CO SENSOR INPUT

CO2 SENSOR INTPUU

DCV

COMMON

MODBUS

COMMON

24VAC

SHORTED=CLOSED

OPEN=ON CARD POT.

OPEN=ONOBARD POT.

270 omega = 50%

270 omega = 500%%

REMOTE

MINIMUM

POTENTIOMETER

POTENTIOMETRE

WHT

RED

BLUE

1 = ECA board

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Operation

WARNING! If any operating checks

must be performed with the unit

operating, it is the technician's

responsibility to recognize any

possible hazards and proceed in a

safe manner. Failure to do so could

result in severe personal injury or

death due to electrical shock or

contact with moving parts.

Test mode procedure at the

ReliaTel™ control board

Test procedures

Operating checklist before start-up

Operating the unit from the roof

using the test mode at the

ReliaTel™ control board.

•

Unit is level, with sufficient

clearance all round

•

Duct network is correctly sized

according to the unit

configuration, insulated, and

water-tight

CAUTION! Before proceeding with

the following test procedures, make

sure that thermostat or zone sensor

is off.

•

Condensate drainage line is

correctly sized, equipped with a

trap, and sloped

Power-up initialization

CAUTION! Use one of the following

"Test" procedures to bypass some

time delays and to start the unit at

the control panel.

CAUTION! Before proceeding with

any test procedure or operation,

make sure that crankcase heaters

have been energized for at least 8

hours.

•

Filters are in position, of correct

size and quantity and clean

Wiring is correctly sized and

connected in accordance with

wiring diagrams

Each step of unit operation can be

activated individually by

temporarily shorting across the

"Test" terminals for two to three

seconds.The Liteport LED located

on the RTRM module will blink

when the test mode has been

initiated.The unit can be left in any

"Test" step for up to one hour

before it will automatically

terminate, or it can be terminated

by opening the main power

disconnect switch. Once the test

mode has been terminated, the

Liteport LED will glow continuously

and the unit will revert to the

"System" control.

Units equipped with Scroll

compressors do not have crankcase

heaters.

•

Power supply lines are protected

by recommended fuses and

correctly earthed

Note:

•

Thermostat is correctly wired

and positioned

Unit is checked for refrigerant

charge and leaks

Indoor and outdoor fans rotate

freely and are fixed on shafts

Upon power initialization, the RTRM

performs self-diagnostic checks to

insure that all internal controls are

functional. It also checks the

configuration parameters against

the components connected to the

system.The Liteport LED located on

the RTRM module is turned "On"

within 1 second of power-up if

internal operation is okay.

•

Supply fan rotation speed is set

Access panels and doors are

replaced to prevent air entering

and risks of injury

•

Checking of the gas heating

section, in accordance with

above procedure

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Operation

2. AutoTest Mode

Test modes

This method is not recommended

for start-up due to the short timing

between individual component

steps.This method initiates the

different components of the unit,

one at a time, when a jumper is

installed across the test terminals.

The unit will start the first test step

and change to the next step every

30 seconds. At the end of the test

mode, control of the unit will

automatically revert to the applied

"System" control method.

There are 2 methods in which the

"Test" mode can be cycled with the

test button:

1. StepTest Mode

This method initiates the different

components of the unit, one at a

time, by temporarily shorting across

the two test terminals for two to

three seconds. For the initial start-

up of the unit, this method allows

the technician to cycle a component

"On" and have up to 1 hour to

complete the check.

For unit test steps and test modes,

values to cycle the various

components, refer toTable 36.

Table 36 - ServiceTest Guide for Component Operation on gas-fired units

Indoor

Fan

Compressor Compressor

Step

Mode

Economizer

Heat 1

Heat 2

Outdoor 1 Outdoor 2

Fan On

Econ.

CooI1

CooI2

Heat1

Heat2

Min

Open

Min

Off

Min

Off

Min

* With Optional Accessory

** "Off" If temperature falls below 16° ( 1°)°C, "On" if temperature rises above 18°( 1°)°C.

Note: Steps for optional accessories and modes not present in unit will be skipped.

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Operation

Note: Unit to be installed outside

only.

Unit start-up

Verification of gas valve settings -

(Reserved for the qualified gas

technician)

Note: Expansion valve must be

adapted to the type of gas used:

•

G 20: 20 mb

G 25: 25 mb

G 31 (Propane): 37 or 50 mb

WARNING! Improper gas valve

setting may lead to burner

destruction and people injury.

Note: Unit factory-set for G20.

Figure 23 - Gas valve

1 = Negative pressure controller

2 = Safety solenoid valve

3 = Gas injector

4 = Air inlets

5 =To the burner

6 = Fan

7 = Gas unit

8 = Minimum gas pressure cut-out

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Operation

Table 37 - Marking category of the gas section in different countries

Country

Category

Type of gas

G20

CH+ES-GB-IE-PT

II2H3P

LU-DE

AT-DK-Fl-SE

I2H

II2E+3P

II2H3+

II2L3P

I2E+ & I3P

I2E & I3P

Pressure in mbar

G25

G31

Table 38 - Gas burner data

G350

YK* 155-175-200-225

Burner

G350

Natural Gas G20 (20mbar) 34.02 MJ/m (15°C-1013)

Nominal rate

Reduced rate

Nominal rate

Reduced rate

Nominal rate

Reduced rate

Nominal rate

Reduced rate

CO %

8.1

Gas Flow (15 C-1013 mbar)

Heating Capacity

Heating Rate

(m /h)

(kW)

8.13

69.3

69.1

76.8

Efficiency

< 0.001%

9 ppm

9.7%

G20 - 20mbar

@ 400V-3-50Hz

Nox ppm

Smoke analysis

Burner

G350

Natural Gas G25 (20 ou 25 mbar) 29.30 MJ/m (15°C-1013)

Nominal rate

Reduced rate

Nominal rate

Reduced rate

Nominal rate

Reduced rate

Nominal rate

Reduced rate

CO %

8.8

Gas Flow (15 C-1013 mbar)

Heating Capacity

Heating Rate

(m /h)

(kW)

8.21

62.9

59.5

71.5

66.8

Efficiency

< 0.001%

G25 - 25mbar

@ 400V-3-50Hz

Nox ppm

Smoke analysis

7. 4 %

Burner

G350

Propane Gas G31 (30, 37ou 50 mbar) 88.00 MJ/m (15 C-1013)

Nominal rate

Reduced rate

Nominal rate

Reduced rate

Nominal rate

Reduced rate

Nominal rate

Reduced rate

Nominal rate

2.7

Gas Flow (15 C-1013 mbar)

Heating Capacity

(m /h)

2.56

5.1

(kg/h)

(kW)

4.9

57.5

55.3

65.3

62.6

Heating Rate

Efficiency

Reduced rate

88.3

Nominal rate

Combustion Air Flow

(Avec E=25%)

(m /h)

Reduced rate

CO %

< 0.001%

G31 - 37mbar

@ 400V-3-50Hz

Nox ppm

Smoke analysis

8.9%

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Operation

Starting the unit in cooling mode

Operating pressures

Final installation checklist

•

Are all power cables tightened?

Check torque of power

cables contact !

Is the condenser fan and indoor

blower operating correctly, i.e.

correct rotation and without

undue noise?

Are the compressors operating

correctly and has the system

been checked for leaks?

Have the voltage and running

currents been checked to

determine if they are within

limits?

Have the air discharge grilles

been adjusted to balance the

system?

Has the ductwork been checked

for air leaks and any

condensation?

Has the air temperature rise

been checked?

Before start-up, ensure that all

power cables are tightened.

After the unit has operated in

cooling mode for a short period of

time, install pressure gauges on the

gauge ports of the discharge and

suction line valves.

Verify that the unit airflow rate is

adjusted according to the

information provided in the "Supply

fan adjustment" section of this

manual.

•

Note:To bypass time delays and

verify the operation of this unit from

the roof, use the "Test procedure"

section in this manual. Check the

suction and discharge pressures.

•

To start the unit in cooling mode:

•

Place the zone sensor system

switch in the "COOL" position.

Note: Always route refrigerant

hoses through the port hole

provided and ensure that the

compressor access panel is in place.

•

Position the cooling setpoint

approximately 10° below room

temperature and place the fan

switch in the "AUTO" or "ON"

position.

•

Cooling shutdown

•

Turn on unit main power supply.

To exit the test mode, disconnect

unit power for 3-5 seconds and

reapply. When running the unit

using the zone sensor as the

control, position the selector switch

to "OFF".

The condenser fan motor,

compressor and supply fan motor

should operate automatically.

•

There will be a delay of up to

5 minutes before the unit starts in

cooling mode.

Has the indoor airflow been

checked and adjusted if

necessary?

Has the unit been checked for

tubing and sheet metal rattles or

any unusual noises?

There may be a delay of up to

3 minutes before compressors shut

down and an additional one minute

before the fan shuts down in this

setting.

•

Do not de-energize main power

disconnect except when unit is to

be serviced. Power is required to

keep the compressor crankcase

warm and boil off refrigerant in the

oil (except on units with Scroll

compressors).

Are all covers and panels in

place and properly fastened?

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Operation

ReliaTel™ is a microelectronic

control feature, which provides

operating functions that are

significantly different from

conventional electro-mechanical

units.The master module is the

ReliaTel™ Refrigeration Module

(RTRM).

Evaporator Fan Operation

Cooling without an

Economizer

When the fan selection switch is set

to the "Auto" position, the RTRM

energizes the (K6) relay coil

approximately one second after

energizing the compressor

contactor coil (CC1) in the cooling

mode. In heating mode, the RTRM

energizes the (K6) relay coil

approximately 45 seconds after gas

ignition. Closing the K6 contacts on

the RTRM energizes the supply fan

relay (F) coil to start the supply fan

motor (IDM).

When the system switch is set to

the "Cool" position and the zone

temperature rises above the cooling

setpoint controlband, the RTRM

energizes the (K9) relay coil located

on the RTRM. When the K9 relay

contacts close, the compressor

contactor (CC1) coil is energized

provided the low pressure control

(LPC1) and high pressure control

(HPC1) are closed. When the CC1

contacts close, compressor (CPR1)

and the outdoor fan motor (ODM)

start to maintain the zone

The RTRM provides compressor

antishort cycle timing functions

through minimum "Off" and "On"

timing to increase reliability,

performance and to maximize unit

efficiency.

Upon power initialization, the RTRM

performs self-diagnostic checks to

insure that all internal controls are

functioning. It checks the

configuration parameters against

the components connected to the

system.

The RTRM de-energizes the fan

relay (F) approximately 60 seconds

after the cooling requirement has be

satisfied to enhance unit efficiency.

temperature to within 2 F of the

sensor setpoint at the sensed

location.

When the heating cycle is

terminated, the supply fan relay (F)

coil is de-energized approximately

90 seconds after the heating

requirement.

If the first stage of cooling can not

satisfy the cooling requirement, the

RTRM energizes the (K10) relay coil

located on the RTRM. When the

(K10) relay contacts close, the

compressor contactor (CC2) coil is

energized provided the low

pressure control (LPC2) and high

pressure control (HPC2) are closed.

When the CC2 contacts close,

compressor (CPR2) starts to

The LED located on the RTRM

module is turned "On" within one

second after power-up if all internal

operations are okay.

When the fan selection switch is set

to the "On" position, the RTRM

keeps the supply fan relay coil (F)

energized for continuous fan motor

operation.

When the unit is equipped with the

optional clogged filter switch, wired

between terminals J7-3 and J7-4 on

the ReliaTel™ Options Module

(RTOM), the RTRM produces an

analog output if the clogged filter

switch (CFS) closes for two minutes

after a request for fan operation.

When the system is connected to a

remote panel, the "SERVICE" LED

will be turned on when this failure

occurs.

maintain the zone temperature to

within 2 F of the sensor setpoint

at the sensed location.

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Operation

The ECA continues to modulate the

economizer damper open/closed to

keep the mixed air temperature that

is calculated by the RTRM.

Low Ambient Operation

Cooling with an

Economizer

The economizer is utilized to control

the zone temperature providing the

outside air conditions are suitable.

During low ambient operation,

outside air temperature below 13ºC,

the RTRM will cycle the compressor

and outdoor fan motor "Off" for

approximately three minutes after

every 10 minutes of accumulated

compressor run time.The supply

fan motor (IDM) will continue to

operate during this evaporator

defrost cycle (EDC) and the

compressor and outdoor fan will

return to normal operation once the

defrost cycle has terminated and

the compressor "Off" time delay has

been satisfied.

If economizing is not possible, the

ECA drives the damper to the

minimum position setpoint when

the supply fan relay (F) is energized

and allows mechanical cooling

operation. When the unit is

equipped with the optional fan

failure switch, wired between

terminals J7-5 and J7-6 on the

RTOM, the RTRM will stop all

cooling functions and produce an

analog output if the fan failure

switch (FFS) does not open within

40 seconds after a request for fan

operation. When the system is

connected to a remote panel, the

"SERVICE" LED will flash when this

failure occurs.

Outside air is drawn into the unit

through modulating dampers. When

cooling is required and economizing

is possible, the RTRM sends the

cooling request to the unit

economizer actuator (ECA) to open

the economizer damper.The RTRM

tries to cool the zone utilizing the

economizer to slightly below the

zone temperature setpoint. If the

mixed air sensor (MAS) senses that

the mixed air temperature is below

53ºF, the damper modulates toward

the closed position. If the zone

temperature continues to rise above

the zone temperature setpoint

controlband and the economizer

damper is full open, the RTRM

energizes the compressor contactor

(CC1). If the zone temperature

continues to rise above the zone

temperature setpoint controlband

and the economizer damper is fully

open, the RTRM energizes the

compressor contactor (CC2).

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Operation

3. Comparative Enthalpy - By

utilizing a humidity sensor and a

temperature sensor in both the

return air stream and the

Economizer Set-Up

Ignition Module

Adjusting the minimum position

potentiometer located on the unit

economizer Actuator (ECA) sets the

required amount of ventilation air.

Two Stage (IGN) runs self-check

(including verification that the gas

valve is de-energized). (IGN) checks

the high-limit switches (TC01 &

TC02) for normally closed contacts.

With 115 VAC power supplied to the

ignition module (IGN), the hot

surface ignition probe (IP) is

preheated for approximately

45 seconds.The gas valve (GV) is

energized for approximately

7 seconds for trial for ignition, to

ignite the burner.

outdoor air stream, the unit

control processor (RTRM) will be

able to establish which

conditions are best suited for

maintaining the zone

Two of the three methods for

determining the suitability of the

outside air can be selected utilizing

the enthalpy potentiometer on the

ECA, as described below:

1. AmbientTemperature -

controlling the economizing

cycle by sensing the outside air

dry bulb temperature.TheTable

below lists the selectable dry

bulb values by potentiometer

setting.

2. Reference Enthalpy - controlling

the economizer cycle by sensing

the outdoor air humidity.The

Table below lists the selectable

enthalpy values by

temperature, i.e. indoor

conditions or outdoor conditions.

The potentiometer located on

the ECA is non-functional when

both the temperature and

humidity sensors are installed.

Once the burner is ignited, the hot

surface ignition probe (IP) is de-

energized by the ignition module

(IGN) and functions as the flame

sensing device.

Table 39 - Potentiometer Setting

Dry BuIb

(°C)

23*

Enthalpy

(KJ/kg)

Potentiometer

Setting

If the burner fails to ignite, the

ignition module will make two more

attempts before locking out.The

green LED will indicate a lock out by

two fast flashes. An ignition lockout

can be reset by:

1. Opening for 3 seconds and

closing the main power

disconnect switch

2. By switching the "Mode" switch

on the zone sensor to "OFF" and

then to the desired position

3. Allowing the ignition control

module to reset automatically

after one hour.

potentiometer setting.

*Factory Setting

If the outside air enthalpy value

is less than the selected value,

the economizer is allowed to

operate.

ReliaTel™ Control Heating

Operation

When the system switch is set to

the "Heat" position and the zone

temperature falls below the heating

setpoint controlband, a heat cycle is

initiated when the RTRM

communicates ignition information

to the Ignition module (IGN).

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Operation

Refer to the ignition control module

diagnostics section for the LED

diagnostic definitions.

Final installation checklist

•

Is the condenser fan and indoor

blower operating correctly, i.e.:

correct rotation and without

undue noise?

When the fan selection switch is set

to the "Auto" position, the RTRM

energizes the supply fan relay (F)

coil approximately 30 second after

initiating the heating cycle to start

the supply fan motor (IDM).

•

Are the compressors operating

correctly and has the system

charge been checked?

Has the gas module been

installed as per the procedure in

this manual?

Have the voltage and running

currents been checked to

determine if they are with in

limits?

The automatic reset high limit

(TCO1), located in the bottom right

corner of the burner compartment,

protects against abnormally high

leaving air temperatures.

The automatic reset fan fail limit

(TCO2), located in the upper middle

section of the supply fan board,

protects against abnormally high

heat buildup which could occur

because of extended cycling of the

high limit (TCO1) or if the supply

fan motor (IDM) fails to operate.

ShouldTCO2 open, the RTRM will

energize the supply fan relay (F) in

an attempt to start the fan motor.

The RTRM signals that a heat failure

has occurred by flashing the "Heat"

LED on the zone sensor.

•

Have the air discharge grilles

been adjusted to balance the

system?

Has the ductwork been checked

for air leaks and any

condensation?

•

Has the heating air temperature

rise been checked?

Has the indoor airflow been

checked and adjusted if

necessary?

•

Has the unit been checked for

tubing and sheet metal rattles

orany unusual noises?

Are all covers and panels in

placeand properly fastened?

There is a Green LED located in the

Ignition Control Module.The table

below lists the diagnostics and the

status of the LED during the various

operating states.

To keep the unit operating safely

and efficiently, the manufacturer

recommends that a qualified service

technician check the entire system

at least once each year, or more

frequently if conditions warrant.

Table 40 -LED status

Diagnostics

Green LED

Off

Red LED

Off

1. Powered but no heat dernand

2. Heat demand without fault

Flash ing

Off

3. No flame detection on ignition - or signal detected

and then lost

Off

Flashing

4. Gas unit incorrectly wired or flame signal detected on

a heat demand

Steady

Off

Flashing

Steady

5. Internal fault

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Maintenance

To keep the unit operating safely

and efficiently, the manufacturer

recommends that a qualified service

technician check the entire system

at least once each year, or more

frequently if conditions warrant it.

End user routine

maintenance

Some of the periodic maintenance

functions for the unit can be

undertaken by the end user.This

includes replacing (disposable) or

cleaning (permanent) air filters,

cleaning unit cabinet, cleaning the

condenser coil, and carrying out a

general unit inspection on a regular

basis.

WARNING! Disconnect the power

supply before removing access

panels to service the unit. Failure to

disconnect power before attempting

any servicing can result in severe

injury or death.

Air filters

It is very important for the central

duct system air filters to be kept

clean.

These should be inspected at least

once a month when the system is in

constant operation (in new

buildings, the filters should be

checked every week for the first four

weeks). If disposable-type filters are

used, they should only be replaced

with ones of the same type and size.

Table 41 - Refrigerant charge

Refrigerant charge

(kg) (R22/R407C)

Unit model and size

Number of circuits

YSD/YSH 060

YSD/YSH 072

YSD/YSH 090

YSD/YSH 102

YSD/YSH 120

3.5

3.7

4.5

3.7/2.1

3.5/3.0

Note: Refrigerant charges are given for information only. Check unit nameplate for exact values.

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Maintenance

Note: Do not attempt to clean

disposable filters. Permanent filters

can be cleaned by washing with a

mild detergent and water. Ensure

that the filters are thoroughly dry

before reinstalling them in the unit

(or duct system).

Service technician

maintenance

Before the cooling season, your

service technician may examine the

following areas of your unit:

•

Filters, for cleaning or

replacement

Motors and drives system

components

Economizer gaskets, for

replacement if necessary

Note: Replace permanent filters

annually if washing fails to clean

them, or they show signs of

deterioration. Be sure to use the

same type and size as were

originally installed.

•

Condenser coils, for cleaning

Safety controls, for mechanical

cleaning

Condenser coil

Unfiltered air circulates through the

unit's condenser coil and can cause

the coil's surface to become

clogged with dust, dirt, etc.To clean

the coil, brush the coil surface in the

direction of the fins with a soft

bristled brush.

•

Electrical components and

wiring, for replacement and

tightening of connections as

necessary

•

Condensate drain, for cleaning

Unit duct connections, to ensure

they are physically sound and

sealed to the unit casing

Unit mounting support, to

ensure that it is sound

Keep all vegetation away from the

condenser coil area.

•

Hot water coil (option)

The unit, to ensure there is no

obvious deterioration

Stop the unit. Do not disconnect the

main supply to the unit.This will

permit the anti-frost protection to

continue to operate, and avoid

water to freeze-up in the coil.

Before the heating season, your

service technician may examine the

following areas of your unit:

•

The unit, to ensure that the

condenser coil can receive the

required airflow (that the

condenser fan grille is not

obstructed)

•

The control panel wiring, to

verify that all electrical

connections are tight, and that

wire insulation is intact

Clean burner area, verify the gas

heat system operates properly.

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Maintenance

5. If no failures are indicated, use

one of theTEST mode

System Status Checkout Procedure

Troubleshooting

"System Status" is checked by using

one of the following two methods:

The RTRM has the ability to provide

the service personnel with some

unit diagnostics and system status

information. Before turning the

main power disconnect switch "Off",

follow the steps below to check the

ReliaTel™

procedures described in the unit

"Start-Up" section to start the

unit.This procedure will allow

you to check all of the RTRM

outputs, and all of the external

controls (relays, contactors, etc.)

that the RTRM outputs energize,

for each respective mode.

Method 1

If the Zone Sensor Module (ZSM) is

equipped with a remote panel with

LED status indication, you can check

the unit within the space. If the ZSM

does not have LED's, use Method 2.

Refrigeration Module (RTRM). All

diagnostics & system status

information stored in the RTRM will

be lost when the main power is

turned "Off".

Proceed to Step 6.

6. Step the system through all of

the available modes, and verify

operation of all outputs, controls,

and modes. If a problem in

operation is noted in any mode,

you may leave the system in that

mode for up to one hour while

troubleshooting. Refer to the

sequence of operations for each

mode, to assist in verifying

proper operation. Make the

necessary repairs and proceed to

Steps 7 and 8.

7. If no abnormal operating

conditions appear in the test

mode, exit the test mode by

turning the power "Off" at the

main power disconnect switch.

8. Refer to the individual

component test procedures if

other microelectronic

THS/P03 have the remote panel

indication feature.The LED

descriptions are listed below:

1. Verify that the Liteport LED on

the RTRM is burning

LED 1 (System) "On" during

normal operation. "Off" if a system

failure occurs or the LED fails.

"Flashing" indicates test mode.

continuously. If the LED is lit, go

to Step 3.

2. If the LED is not lit, verify that

24 VAC is present between J1-1

and J1-2. If 24 VAC is present,

proceed to Step 3. If 24 VAC is

not present, check the unit main

power supply, check transformer

(TNS1). Proceed to Step 3 if

necessary.

LED 2 (Heat) "On" when the heat

cycle is operating. "Off" when the

heat cycle terminates or the LED

fails. "Flashing" indicates a heating

failure.

LED 3 (Cool) "On" when the

cooling cycle is operating. "Off"

when the cooling cycle terminates

or the LED fails. "Flashing" indicates

a cooling failure.

3. Utilizing "Method 1" or

"Method 2" in the system status

diagnostic section, check the

following: System status,

Heating status, Cooling status. If

a System failure is indicated,

proceed to Step 4. If no failures

are indicated, proceed to Step 5.

LED 4 (Service) "On" indicates a

clogged filter. "Off" during normal

operation. "Flashing" indicates an

supply fan failure.

components are suspect.

4. If a System failure is indicated,

recheck Steps 1 and 2. If the LED

is not lit in Step 1, and 24 VAC is

present in Step 2, the RTRM has

failed. Replace the RTRM.

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Maintenance

Below is the complete listing of

failure indication causes:

Cooling Failure

Simultaneous Heat and Cool Failure

1. Emergency Stop is activated

1. Cooling and heating set point

(slide pot) on the zone sensor

has failed. Refer to the "Zone

SensorTest Procedure" section.

2. Zone temperature thermistor

ZTEMP on ZTS failed. Refer to

the "Zone SensorTest Procedure"

section.

3. CC1 or CC2 24 VAC control circuit

has opened, check CC1 & CC2

coils, and any of the controls

below that apply to the unit

(HPC1, HPC2).

4. LPC1 has opened during the

3 minute minimum "on time"

during 4 consecutive compressor

starts, check LPC1 or LPC2 by

testing voltage between the J1-8

& J3-2 terminals on the RTRM

and ground. If 24 VAC is present,

the LPC's has not tripped. If no

voltage is present, LPC's has

tripped.

System failure

Method 2

Check the voltage between

terminals 6 and 9 on J6, it should

read approximately 32 VDC. If no

voltage is present, a system failure

has occurred. Refer to Step 4 in the

previous section for the

The second method for determining

system status is done by checking

voltage readings at the RTRM (J6).

The system indication descriptions

and the approximate voltages are

listed below.

recommended troubleshooting

procedure.

System Failure

Measure the voltage between

terminals J6-9 & J6-6.

Heating Failure

Verify Heat Failure by Ignition

Module (IGN) LED indicator:

Normal Operation = approximately

32 VDC

OFF: No Power or Failure

ON: Normal

System Failure = less than 1 VDC,

approximately 0.75 VDC

Slow Flash: Normal, Heat Call

Fast Flash: Error Code:

Test Mode = voltage alternates

between 32 VDC & 0.75 VDC

Flash: Communication Failure

Flashes: System Lockout

Flashes: Pressure Switch Fail

FlashesTC01 orTC02 Open

Flashes: Flame w/o Gas Valve

Flashes: Flame Rollout Open

Heat Failure

Measure the voltage between

terminals J6-7 & J6-6.

Service Failure

1. If the supply fan proving switch

has closed, the unit will not

operate (when connected to

RTOM), check the fan motor,

belts, and proving switch.

Heat Operating = approximately

32 VDC

Heat Off = less than 1 VDC,

approximately 0.75 VDC

2. Clogged filter switch has closed,

check the filters.

Heating Failure = voltage alternates

between 32 VDC & 0.75 VDC

Cool Failure

Measure the voltage between

terminals J6-8 & J6-6.

Cool Operating = approximately

32 VDC

Cool Off = less than 1 VDC,

approximately 0.75 VDC

Cooling Failure = voltage alternates

between 32 VDC & 0.75 VDC

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Maintenance

Service Failure

Resetting Cooling and Ignition

Lockouts

ZoneTemperature Sensor (ZTS)

Service Indicator

Measure the voltage between

terminals J6-10 & J6-6.

Cooling Failures and Ignition

The ZSM SERVICE LED is a generic

indicator that will signal the closing

of a Normally Open switch at any

time, providing the Indoor Motor

(IDM) is operating.This indicator is

usually used to indicate a clogged

filter, or an air side fan failure.

Clogged Filter = Approximately

32 VDC.

Lockouts are reset in an identical

manner. Method 1 explains

resetting the system from the space,

Method 2 explains resetting the

system at the unit.

Normal = Less than 1 VDC,

approximately 0.75 VDC

Fan Failure = voltage alternates

between 32 VDC & 0.75 VDC.

Note: Before resetting Cooling

Failures and Ignition Lockouts,

check the Failure Status Diagnostics

by the methods previously

explained.

The RTRM will ignore the closing of

this Normally Open switch for 2 ( 1)

minutes.This helps prevent

nuisance SERVICE LED indications.

The exception is the LED will flash

40 seconds after the fan is turned

"On" if the Fan Proving Switch is not

made.

To use LED's for quick status

information at the unit, purchase a

ZSM and connect wires with

alligator clamps to terminals 6

through 10.

Diagnostics will be lost when the

power to the unit is disconnected.

Connect each respective terminal

wire (6 through 10) from the Zone

Sensor to the unit J6 terminals 6

through 10.

Method 1

Clogged Filter Switch

To reset the system from the zone,

turn the "Mode" selection switch at

the zone sensor to the "Off"

position.

This LED will remain lit the entire

time that the Normally Open switch

is closed.The LED will be turned off

immediately after resetting the

switch (to the Normally Open

position), or any time that the IDM

is turned "Off".

Note: If the system is equipped

with a programmable zone sensor

THS03, the LED indicators will not

function while the ZSM is

connected.

After approximately 30 seconds,

turn the "Mode" selection switch to

the desired mode, i.e. Heat, Cool or

Auto.

If the switch remains closed, and

the IDM is turned "On", the SERVICE

LED will be turned "On" again after

the 2 ( 1) minute ignore delay.

Method 2

To reset the system at the unit,

cycle the unit power by turning the

disconnect switch "Off" and then

"On".

This LED being turned "On", will

have no other affect on unit

operation. It is an indicator only.

Lockouts can be cleared through the

building management system. Refer

to the building management system

instructions for more information.

Fan Failure Switch

When the "Fan Failure" switch is

wired to the RTOM, the LED will

remain flashing the entire time the

fan proving switch is closed,

indicating a fan failure, and it will

shut the unit operations down.

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Maintenance

Table 42 -Thermistor Resistance /

Temperature Chart

ZoneTemperature Sensor (ZTS)Test

Note:These procedures are not for

programmable or digital models

and are conducted with the Zone

Sensor

Temperature/resistance coefficient is

negative.

Temperature

Resistance

(kOhms)

103

(°C)

-21

-15

-9

Module electrically removed from

the system.

74.65

54.66

46.94

40.4

Test 1

-7

ZoneTemperatureThermistor

(ZTEMP)

-4

-1

34.85

30.18

26.22

22.85

19.96

17.47

This component is tested by

measuring the resistance between

terminals 1 and 2 on the Zone

Temperature Sensor.

15.33

13.49

11.89

10.5

9.297

8.247

7. 3 3

6.528

5.824

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Literature order number

Date

RT-SVX19A-E4

0805

Supersedes

RT-SVX04A and RT-SVX05A

Europe

Literature stocking location

Trane has a policy of continuous product and product data improvement and reserves the right to

change design and specifications without notice. Only qualified technicians should perform the

installation and servicing of equipment referred to in this publication.

A business of American Standard

Companies www.trane.com

For more information, contact your localTrane

sales office or e-mail us at [email protected]

American Standard Europe BVBA

Registered Office: 1789 Chaussée de Wavre, 1160 Brussels - Belgium

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