Trane Voyager 1 Rooftop Unit Tsh 060 User Manual

Installation

Operation

Maintenance

Voyager™ I Rooftop Units

Cooling-onlyTSD/TSH 060 072 102 120

Reversible WSD/WSH 060 072 090

Gas-firedYSD/YSH 060 072 090 102 120

RT-SVX20A-E4

General information

Reception

Refrigerant

Maintenance contract

On arrival, inspect the unit before

signing the delivery note. In case of

visible damage:The consignee (or

the site representative) must specify

any damage on the delivery note,

legibly sign and date the delivery

note, and the truck driver must

countersign it.The consignee (or the

site representative) must notify

Trane Epinal Operations - Claims

team and send a copy of the

The refrigerant provided by the

manufacturer meets all the

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

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.

delivery note.The customer (or the

site representative) should send a

registered letter to the last carrier

within 3 days of delivery.

Storage

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.

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.

Reception in France only:

immediate cancellation of the

warranty.

Concealed damage must be looked

for at delivery and immediately

treated as visible damage.

Training

Reception in all countries except

France:

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

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.

In case of concealed damage:The

consignee (or the site

representative) must send a

registered letter to the last carrier

within 7 days of delivery, claiming

for the described damage. A copy of

this letter must be sent toTrane

Epinal Operations - Claims team.

Do not use the unit's heater as

temporary heat without completing

the start-up procedures detailed

under "Unit Start-Up".

Warranty

Warranty is based on the general

terms and conditions of the

manufacturer.The warranty is void

if the equipment is repaired or

modified without the written

TheTrane Company will not assume

responsibility for equipment

damage resulting from

accumulation of condensate on the

unit electrical components.

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

cancellation of warranty and

liabilities by the manufacturer.

RT-SVX20A-E4

Contents

General information

Foreword

Warnings and Cautions

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

RT-SVX20A-E4

Installation

Figure 2 - Rigging

General information:The

Roof curb (accessory)

installation must conform to all

local standards and regulations.

Roof curbs are available as an

accessory for downflow units.The

curbs can be adjustable and

supplied pre-assembled on wooden

pallets, packed under plastic film.

Two types of self-adhesive seals are

provided to ensure the roof curb

seal is leak-tight (40 mm wide for

the perimeter, 20 mm wide for the

crosspieces).

Reception of units

Rooftop unit

There are two ways to handle the

unit:

1. Use the openings in the base to

handle the machine using a

forklift, in accordance with

applicable safety regulations.

2. Use a lifting beam correctly

adjusted to fit the unit (Figure 1).

Roof curb Installation

(TSD-WSD-YSD

accessories)

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.

Unit handling

1 = Remove 2 fork lift brackets

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. Four

shackles and four slings are

required. Use a lifting beam to

prevent the cables pressing too hard

on top of the unit during lifting.The

structure accommodating the unit(s)

must be designed to support the

equipment in operation, as a

2 = Remove 2 metal runners and 3

wooden boards

Lift the unit enough to allow the

removal of two Fork Lift brackets

and hardware. Remove the two Fork

Lift brackets, two metal runners and

three wooden boards as shown in

Figure 2.

The curbs can be adjustable and

supplied pre-assembled on wooden

pallets, packed under plastic film.

Two types of self-adhesive seals are

provided separate. (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.

minimum. (Refer to Figures 1 and

2 andTables 2 and 3.)

Important: For unit to fit on the roof

curb the fork lift pockets must be

removed.

Instructions for the roof curb

assembly and installation with curb

dimensions are provided with each

roof curb kit.

Figure 1 - Unit handing

RT-SVX20A-E4

Installation

Figure 3 - Minimum clearances

Dimensions/Weights/

Clearances

The structure accommodating the

unit(s) must be designed to support

the equipment in operation, as a

minimum. Refer toTable 2 and the

space requirement plan.

Table 1 - Minimum recommended clearances

Unit size

Mimum clearances (mm)

TSD/TSH 060

TSD/TSH 072

TSD/TSH 090

TSD/TSH 102

TSD/TSH 120

YSD/YSH 060

YSD/YSH 072

YSD/YSH 090

YSD/YSH 102

YSD/YSH 120

WSD/WSH 060

WSD/WSH 072

WSD/WSH 090

1829

1219

914

Table 2 - Unit weights and center of gravity

Maximum weight

Corner weight (1)

Center of gravity

Unit Size

Shipping

(kg)

Net

(kg)

Length

(mm)

Width

(mm)

TSD/TSH 060

TSD/TSH 072

TSD/TSH 090

TSD/TSH 102

TSD/TSH 120

YSD/YSH 060

YSD/YSH 072

YSD/YSH 090

YSD/YSH 102

YSD/YSH 120

WSD/WSH 060

WSD/WSH 072

WSD/WSH 090

259

365

428

445

485

285

390

458

474

520

266

408

418

235

326

389

405

445

260

350

419

434

481

241

368

378

790

970

990

810

480

560

530

560

510

560

530

560

480

560

530

107

131

133

147

101

106

115

104

113

139

141

155

990

970

1020

790

970

110

114

126

100

111

122

128

Notes:

(1) Corner weights are given for information only. All models must be supported continuously by a curb or

equivalent frame support.

RT-SVX20A-E4

Installation

Figure 4

Center of

gravity length

Center of

gravity width

Center of

gravity

Table 3 - Factory-installed options and accessories net weights (kg)

Motorized

Outside Air

Damper

Manual

Outside Air

Damper

Barometric

Relief

Oversized

Motor

Electric

Heaters

Hot water

coil

Unit size

Economizer

Roof Curb

TSD/TSH 060

TSD/TSH 072

TSD/TSH 090

TSD/TSH 1020

TSD/TSH 120

YSD/YSH 060

YSD/YSH 072

YSD/YSH 090

YSD/YSH 102

YSD/YSH 120

WSD/WSH 060

WSD/WSH 072

WSD/WSH 090

11,8

16,3

11,8

16,3

11,8

16,3

3,2

4,5

3,2

4,5

3,2

4,5

9,1

13,6

9,1

7,3

31,8

52,2

31,8

52,2

31,8

52,2

6,8

13,6

6,8

14,0

17,0

19,0

11,8

7,3

3,6

13,6

9,1

11,8

7,3

3,6

13,6

6,8

14,0

17,0

13,6

11,8

3,6

13,6

Notes:

(1) Weights for options not listed are < 3 kg.

(2) Net weight should be added to unit weight when ordering factory-installed accessories.

(3) Some accessories are not available on all units.

RT-SVX20A-E4

Installation

Figure 5 - Conversion to horizontal

discharge

3. Position duct covers as shown in

Figure 4.The supply duct cover is

installed (insulation side down)

over the downflow return

Installing the unit

Discharge Conversion

opening by engaging one side of

the panel under a retaining angle

and securing the other side with

3 screws.

If a unit is to be converted to

Vertical discharge, a panel must be

acquired fromTrane.

If a unit is to be converted to

Horizontal discharge, the following

conversion must be performed:

1. Remove the return and supply

duct covers.

4. Slide return duct cover

(insulation side up) into supply

openings until outer edge of the

duct cover engages with the two

retaining clips on the duct

flanges. Secure the outer edge of

the each duct cover with two

screws.

2. Apply gasket to the return duct

cover.

1 = Supply duct cover, insulation side

down

2 = Return duct cover with gasket

installed, insulation side up

3 = Edge of duct cover goes under

retaining angle

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

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.

Figure 6 - Unit mounting on roof

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

RT-SVX20A-E4

Installation

Installing the unit on the ground

•

For the design of the duct

network, comply with

recommendations currently

applicable on the market, in

particular:

. Installation of a section of

flexible ducts to limit

transmission of the unit's

vibrations

Connection of duct

network

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.

1) Downflow discharge units

(TSD,WSD,YSD)

Using the rooftop curb

•

The rooftop curb must be

insulated on the outside walls at

the discharge and intake

openings to prevent

. Use of movable vanes or

deflectors to reduce the sound

level.

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

•

2) Horizontal discharge units

(TSH,WSH,YSH)

•

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.

Note: Unit installation must comply

to local codes

recommended on the rooftop

curb plan, it is essential to fix

these components before

installing the unit.

•

Note: In case of use of 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 7 - Unit installation on the ground

1 = Concrete slab

RT-SVX20A-E4

Installation

Table 4 - Duct dimensions for downflow units (mm)

Unit size

Flanges

TSD 060

619

610

819

875

816

357

356

357

451

444

411

394

411

451

444

459

457

459

875

838

356

YSD 060

WSD 060

TSD/WSD 072/090

TSD 102/120

YSD 072/090/102/120

Table 5 - Duct dimensions for downflow units (mm)

Unit size

TSH/WSH 060

591

832

337

425

375

606

438

489

YSH 060

TSH/WSH/YSH 072/090

TSH/YSH 102/120

Figure 8 - Duct dimensions for downflow units

Figure 9 - Duct dimensions for horizontal units

S = Supply

R = Return

S = Supply

R = Return

RT-SVX20A-E4

Installation

Figure 10 - Condensate drain location

Condensate drain piping

A 3/4" 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 11.

The condensate drain is reversible

to allow installation of a drain tap

on either side of the unit.

1 = Main condensate drain location

Figure 11 - Condensate drain line location

1 = Static pressure drain pan

2 = Panel enclosure

3 = ¾ " drain

4 = Cleanout plug

RT-SVX20A-E4

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 ensure

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 6 - Gas burner models

Unit

Burner size

YSD/YSH 060

YSD/YSH 072

YSD/YSH 090

YSD/YSH 102

YSD/YSH 120

G120

G200

G250

SeeTable 51 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

3. Leak-check the gas pipe.

Figure 12 -Typical gas supply pipework

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 50.

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)

RT-SVX20A-E4

Installation

Filter installation

Supply fan adjustment

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.

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.

• Obtain the design airflow rate

and the design external static

pressure drop through the

distribution system.

• Add static pressure drop of the

accessories installed on the unit.

(Table 9)

Number and size of filters is

determined by size and

configuration of the unit. If

disposable filters were chosen as an

option, they are shipped in the

supply fan section.

CAUTION! Do not operate unit

without filters in place.

• 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 35 to

find the external static pressure

that most closely approximates

total system external static

pressure.Then locate the

appropriate airflow rate for your

unit.The value obtained

The maximum pressure drops

allowable on filters are:

EU2/G2: 120 Pa

EU4/G4: 150 Pa

represents the brake horsepower

for the supply fan motor and the

fan RPM.

3. Adjust motor sheave according

toTable 8.

Table 7 - Filter arrangement

Unit

EU2/G2

EU4/G4

Size

Quantity

Size

Quantity

TSD/TSH/YSD/YSH/WSD/WSH 060

TSD/TSH/YSD/YSH/WSD/WSH 072

TSD/TSH/YSD/YSH/WSD/WSH 090

TSD/TSH/YSD/YSH 102

(508x762x25)

(406x635x50)

(508x635x50)

(500x750x25)

(395x625x50)

(500x625x50)

TSD/TSH/YSD/YSH 120

RT-SVX20A-E4

Installation

To increase airflow

To adjust belt

When removing or installing the

new belts, do not stretch them over

the sheaves. Loosen the belts using

the belt tension adjustment bolts on

the motor mounting base.

Loosen variable sheave set screw

and turn sheave clockwise.

The fan belts must be inspected

periodically to assure proper unit

operation. Replacement is

necessary if the belts appear frayed

or worn.

To decrease airflow

Once the new belts are installed,

adjust the belt tension.

Loosen variable sheave set screw

and turn sheave counter-clockwise.

Units with dual belts require a

matched set of belts to ensure equal

belt length.

Table 8 - Motor sheave / Fan speed

Fan speed (RPM)

Standard drive & motor

6 turns

Open

5 turns

Open

4 turns

Open

3 turns

Open

2 turns

Open

1 turns

Open

Unit

Closed

TSD/TSH 060

TSD/TSH 072

TSD/TSH 090

TSD/TSH 102

TSD/TSH 120

YSD/YSH 060

YSD/YSH 072

YSD/YSH 090

YSD/YSH 102

YSD/YSH 120

WSD/WSH 060

WSD/WSH 072

WSD/WSH 090

N/A

859

786

894

N/A

898

698

752

688

782

1036

806

913

836

950

898

698

752

967

751

806

737

838

1105

860

967

885

1006

967

751

806

1036

806

860

786

894

1174

913

1105

859

914

1174

913

1243

967

968

1020

934

835

950

1243

968

1075

982

1118

1105

859

914

885

1006

1312

1022

1129

1032

1174

913

1062

1381

1074

N/A

1021

934

1062

1036

806

860

N/A

1243

967

968

1020

Fan speed (RPM)

Oversized drive & motor

6 turns

Open

5 turns

Open

4 turns

Open

3 turns

Open

2 turns

Open

1 turns

Open

Unit

Closed

TSD/TSH 060

TSD/TSH 072

TSD/TSH 090

TSD/TSH 102

TSD/TSH 120

YSD/YSH 060

YSD/YSH 072

YSD/YSH 090

YSD/YSH 102

YSD/YSH 120

WSD/WSH 060

WSD/WSH 072

WSD/WSH 090

N/A

1112

N/A

1062

1243

967

1182

971

1118

1311

1021

1252

1041

1174

1379

1075

1322

1111

1229

1450

1128

1392

1181

1285

1515

1183

1460

1251

1341

1588

1235

N/A

1321

N/A

1112

N/A

1062

N/A

1112

967

1182

971

1118

1243

967

1182

1021

1252

1041

1174

1311

1021

1252

1075

1322

1111

1229

1379

1075

1322

1128

1392

1181

1285

1450

1128

1392

1183

1460

1251

1341

1515

1183

1460

1235

N/A

1321

N/A

1588

1235

N/A

RT-SVX20A-E4

Installation

Component air pressure drops

Table 9 - Pressure drop through accessories

Economizer

100%

outside air

Unit

size

Airflow

(m /h)

Filter

EU2/G2

Filter

EU4/G4

Electric

heater

Hot water

coil

3060

3400

3740

4080

060

072

090

102

120

3670

4080

4490

4900

4590

5100

5610

6120

5200

5780

6360

6940

6120

6800

7480

8160

106

117

RT-SVX20A-E4

Installation

Supply fan performances

Table 10 -TSD 060 Available static pressure

External Static Pressure (Pa)

100

125

150

175

200

225

250

275

300

Fan

RPM

Fan

RPM

m /h

RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW

2720

3060

3400

3740

4080

899 0.43 944 0.49 985 0.54 1023 0.59 1060 0.64 1093 0.69 1126 0.74

904 0.49 947 0.54 988 0.58 1028 0.64 1067 0.70 1104 0.76 1138 0.82 1171 0.87

918 0.57 958 0.62 998 0.67 1036 0.71 1073 0.76 1111 0.82 1147 0.89 1182 0.96 1215 1.02

930 0.65 977 0.71 1016 0.77 1053 0.82 1089 0.88 1124 0.93 1158 0.98 1191 1.03 1226 1.10 1258 1.17

909 0.71 950 0.76 990 0.80 1034 0.87 1074 0.93 1110 1.00 1143 1.06 1177 1.12 1209 1.17 1241 1.23 1272 1.29

325

350

375

Fan

RPM

Fan

RPM

Fan

RPM

m /h

2720

3060

3400

3740

4080

1160 0.79 1190 0.84 1222 0.90

1203 0.93 1232 0.98 1262 1.04

1246 1.09 1276 1.15 1306 1.21

1290 1.25

Table 11 -TSH 060 Available static pressure

External Static Pressure (Pa)

150 175

100

125

200

225

250

275

300

Fan

RPM

Fan

RPM

m /h

RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW

2720

3060

3400

3740

4080

898 0.43 953 0.48 1001 0.54 1045 0.59 1087 0.65 1129 0.71 1168 0.77 1206 0.83 1241 0.89

897 0.48 953 0.54 1008 0.60 1058 0.67 1102 0.73 1143 0.79 1181 0.85 1219 0.92 1256 0.99 1291 1.05

908 0.54 961 0.60 1012 0.67 1062 0.74 1111 0.81 1157 0.88 1198 0.95 1237 1.02 1274 1.09 1309 1.16 1343 1.24

923 0.63 978 0.69 1028 0.76 1075 0.83 1120 0.91 1166 0.99 1211 1.06 1254 1.14 1294 1.22 1330 1.29

997 0.80 1049 0.87 1096 0.94 1140 1.02 1183 1.10 1223 1.18 1266 1.27

325

350

375

Fan

RPM

Fan

RPM

Fan

RPM

m /h

2720

3060

3400

3740

4080

1275 0.96 1306 1.02 1338 1.09

1326 1.12 1359 1.19 1390 1.26

1376 1.31

Standard drive

Oversize drive

Note : Data includes pressure drops for standard filters and wet coils

RT-SVX20A-E4

Installation

Table 12 -TSD 072 Available static pressure

External Static Pressure (Pa)

100

125

150

175

200

225

250

275

300

Fan

RPM

Fan

RPM

m /h

RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW

3260

3670

4080

4490

4890

726 0.41 769 0.47 811 0.52 851 0.58 889 0.65 925 0.71 960 0.77

706 0.43 751 0.49 792 0.55 832 0.61 871 0.67 908 0.74 944 0.81 978 0.87

732 0.51 777 0.58 818 0.64 856 0.71 893 0.77 930 0.84 964 0.91 998 0.99

715 0.54 758 0.60 802 0.68 845 0.75 883 0.82 919 0.89 953 0.96 986 1.04 1019 1.11

706 0.58 749 0.64 789 0.71 830 0.79 870 0.87 909 0.95 945

1.02 979

1.10 1011 1.18 1043 1.26

325

350

375

Fan

RPM

Fan

RPM

Fan

m /h

RPM

3260

3670

4080

4490

4890

994 0.83 1026 0.89 1057 0.95

1010 0.94 1043 1.01 1073 1.08

1030 1.06 1063 1.14 1092 1.21

1051 1.19 1082 1.27 1112 1.35

1073 1.34 1103 1.42 1133 1.51

Table 13 -TSH 072 Available static pressure

External Static Pressure (Pa)

150 175

100

125

200

225

250

275

300

Fan

RPM

Fan

RPM

m /h

RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW

3260

3670

4080

4490

4890

726 0.39 771 0.45 814 0.51 857 0.57 899 0.63 939 0.70 978 0.76 1015 0.83

716 0.42 762 0.48 804 0.54 843 0.60 883 0.67 922 0.74 960 0.81 996 0.87 1034 0.95

701 0.45 751 0.51 798 0.59 839 0.65 877 0.71 914 0.78 950 0.85 984 0.93 1020 1.00 1055 1.08

710 0.51 745 0.56 788 0.62 833 0.69 875 0.77 914 0.85 949 0.91 984 0.98 1016 1.06 1049 1.14 1081 1.23

726 0.58 762 0.64 795 0.70 828 0.76 869 0.82 911 0.91 950 0.99 986 1.07 1019 1.14 1051 1.22 1081 1.30 1112 1.38

325

350

375

Fan

RPM

Fan

RPM

Fan

RPM

m /h

3260

3670

4080

4490

4890

1051 0.90 1086 0.97 1118 1.04

1069 1.02 1103 1.09 1136 1.17

1089 1.16 1122 1.23 1154 1.31

1113 1.31 1144 1.40 1176 1.48

1141 1.47 1170 1.57 1199 1.66

Standard drive

Oversize drive

Note : Data includes pressure drops for standard filters and wet coils

RT-SVX20A-E4

Installation

Table 14 -TSD 090 Available static pressure

External Static Pressure (Pa)

100

125

150

175

200

225

250

275

300

Fan

RPM

Fan

RPM

m /h

RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW

4080

4590

5100

5610

6120

750 0.54 794 0.60 834 0.67 873 0.73 909 0.80 945 0.87 980 0.95 1013 1.02

787 0.66 830 0.74

871 0.82 908 0.89 943 0.96 977

1.04 1010 1.11 1043 1.19

747 0.68 789 0.74 827 0.82 867 0.90 906 0.98 944 1.06 980

1.15 1013 1.23 1045 1.31 1076 1.39

755 0.77 797 0.85 836 0.92 873 1.00 908 1.08

1.14 921 1.22 954 1.30

944

1.17 980 1.26 1016 1.35 1050 1.45 1081 1.54 1111 1.63

771 0.88 809 0.96 848 1.06 885

986 1.39 1019 1.49 1052 1.58 1085 1.69 1116 1.79 1148 1.89

325

350

375

Fan

RPM

Fan

RPM

Fan

RPM

m /h

4080

4590

5100

5610

6120

1046 1.10 1076 1.17 1106 1.25

1074 1.27 1105 1.36 1134 1.44

1105 1.47 1134 1.56 1163 1.65

1141 1.72 1168 1.80 1197 1.90

1177 1.99 1204 2.08 1232 2.18

Table 15 -TSH 090 Available static pressure

External Static Pressure (Pa)

150 175

100

125

200

225

250

275

300

Fan

RPM

Fan

RPM

m /h

RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW

4080

4590

5100

5610

6120

769 0.54 814 0.61 855 0.67 893 0.73 929 0.81 965 0.88 999 0.96 1035 1.04 1070 1.12

773 0.62 817 0.68 862 0.76 904 0.85 941 0.92 975 0.98 1009 1.06 1041 1.14 1073 1.22 1104 1.31

989 1.12 1025 1.21 1056 1.28 1088 1.36 1117 1.44 1146 1.53

1.17 1000 1.25 1037 1.34 1073 1.45 1106 1.55 1136 1.63 1165 1.72 1194 1.80

942 1.22 970 1.30 996 1.37 1021 1.45 1052 1.52 1086 1.61 1121 1.71 1153 1.82 1184 1.93 1215 2.04 1242 2.13

771 0.68 805 0.74 837 0.81 870 0.87 912 0.94 951 1.03

842 0.89 873 0.96 903 1.03 930 1.10 963

913

1.14

325

350

375

Fan

RPM

Fan

RPM

Fan

RPM

m /h

4080

4590

5100

5610

6120

1104 1.19 1137 1.27 1168 1.35

1136 1.40 1167 1.48 1198 1.57

1176 1.62 1205 1.72 1233 1.82

1220 1.88 1248 1.98 1275 2.08

1269 2.22 1295 2.31 1319 2.40

Standard drive

Oversize drive

Note : Data includes pressure drops for standard filters and wet coils

RT-SVX20A-E4

Installation

Table 16 -TSD 102 Available static pressure

External Static Pressure (Pa)

100

125

150

175

200

225

250

275

300

Fan

RPM

Fan

RPM

m /h

RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW

4620

5200

5780

6350

6930

695 0.62 733 0.71 769 0.81 802 0.90 833

1.00 863 1.11

892 1.21

919 1.35

946 1.51

688 0.64 725 0.73 761 0.83 796 0.93 828

1.03 861

1.18 887

1.34 916

1.52 948

1.13

1.28

891 1.24

917 1.40

689 0.68 724 0.76 759 0.86 792 0.96 825 1.07 856

826 1.11 857 1.22 887

864 1.30 892 1.40 920

693 0.72 729 0.82 764 0.92 795 1.01

1.46 945 1.58

974

1.70

706 0.80 738 0.89 770 0.98 804 1.09 834 1.19

1.64 976 1.78 1002 1.91

325

350

375

400

425

450

475

500

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

m /h

4620

5200

5780

6350

6930

920

946

974

1.33 946 1.44 973 1.55 999 1.67 1025 1.79 1050 1.90 1073 2.02 1098 2.14

1.46 973 1.58 999 1.71 1024 1.83 1048 1.96 1072 2.09 1096 2.22 1119 2.34

1.63 1001 1.75 1026 1.88 1051 2.01 1074 2.14 1099 2.27 1121 2.41 1143 2.55

1001 1.82 1028 1.95 1054 2.08 1079 2.20 1103 2.34 1126 2.48 1148 2.62 1170 2.76

1029 2.04 1055 2.17 1081 2.30 1105 2.43 1130 2.58 1154 2.72 1176 2.85 1199 3.01

Table 17 -TSH 102 Available static pressure

External Static Pressure (Pa)

150 175

100

125

200

225

250

275

300

Fan

RPM

Fan

RPM

m /h

RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW

4620

5200

5780

6350

6930

689 0.58 734 0.67 781 0.77 826 0.88 865 0.98 898

1.07 928

1.27 969

1.16

956 1.25

982 1.33

693 0.64 735 0.73 773 0.82 812 0.92 855 1.03 897 1.15 934

1.38 999 1.49 1026 1.58

711 0.75 743 0.82 781 0.91 819

1.12 865 1.23 899 1.34

828 1.23 857 1.31 883 1.39

1.01

853

1.11

886 1.21 925 1.34 964

930 1.45 960 1.56 994

1.47 1000 1.60 1034 1.73 1067 1.86

1.68 1028 1.82 1063 1.96 1098 2.11

735 0.89 770 0.97 799 1.04 830

796

1.14

913

1.48 945 1.60

977 1.72 1006 1.84 1034 1.96 1061 2.08 1093 2.23 1125 2.38

325

350

375

400

425

450

475

500

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

m /h

4620

5200

5780

6350

6930

1008 1.42 1033 1.51 1056 1.60 1079 1.69 1102 1.78 1125 1.87 1146 1.95 1168 2.04

1052 1.68 1078 1.78 1101 1.88 1124 1.98 1146 2.08 1168 2.18 1188 2.27 1209 2.37

1094 1.97 1120 2.08 1145 2.20 1168 2.31 1191 2.42 1213 2.53 1234 2.63 1254 2.74

1129 2.26 1158 2.40 1185 2.53 1210 2.66 1234 2.78 1256 2.90 1278 3.03 1299 3.15

1157 2.53 1188 2.70 1218 2.86 1245 3.01 1273 3.16 1297 3.31

Standard drive

Oversize drive

Note : Data includes pressure drops for standard filters and wet coils

RT-SVX20A-E4

Installation

Table 18 -TSD 120 Available static pressure

External Static Pressure (Pa)

100

125

150

175

200

225

250

275

300

Fan

RPM

Fan

RPM

m /h

RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW

5440

6120

6800

7480

8160

789 0.93 822 1.03 856

797 0.99 829 1.10 860 1.22 892

844 1.21 874 1.32 903 1.44 932

922 1.59 948 1.70 975

972 1.90 997 2.02 1022 2.14 1046 2.27 1071 2.41 1095 2.55

1.14 887

1.34 922

1.56 960

1.25

917 1.36

945 1.47

1.46 951 1.57

979 1.69

782

1.01

814

1.11

1.69 988 1.82 1015 1.95

803

1.14

834 1.24 864 1.36 894 1.48

1.82 1001 1.95 1028 2.09 1053 2.23

803

1.21 833 1.31 861 1.42 887 1.52

916

1.64 945 1.77

325

350

375

400

425

450

475

500

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

m /h

5440

6120

6800

7480

8160

973

1.60 999 1.72 1024 1.84 1048 1.97 1072 2.10 1095 2.23 1117 2.37 1140 2.51

1007 1.82 1033 1.94 1059 2.07 1082 2.20 1107 2.34 1130 2.49 1152 2.63 1173 2.77

1042 2.08 1068 2.21 1093 2.35 1117 2.48 1142 2.63 1164 2.76 1187 2.91 1209 3.06

1078 2.38 1103 2.52 1128 2.66 1152 2.81 1176 2.95 1198 3.10 1221 3.25

1119 2.70 1142 2.86 1166 3.02 1189 3.17 1212 3.33

Table 19 -TSH 120 Available static pressure

External Static Pressure (Pa)

150 175

100

125

200

225

250

275

300

Fan

RPM

Fan

RPM

m /h

RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW

5440

6120

6800

7480

8160

807 0.94 844 1.04

886

1.16 926 1.28 965

1.41 1000 1.53 1029 1.64 1057 1.75

792 0.99 829 1.08 865 1.19 898 1.30

930 1.41 965 1.53 1002 1.67 1038 1.81 1072 1.95 1106 2.10

986 1.73 1015 1.85 1044 1.98 1077 2.12 1111 2.28 1143 2.43

802

876

950

1.13

833 1.22 860 1.29 890 1.38 923 1.50 956 1.62

1.49 905 1.58 931 1.67 955 1.75 983 1.86 1014 1.99 1045 2.12 1072 2.25 1098 2.37 1125 2.51 1152 2.65 1182 2.81

1.91 977 2.02 1002 2.11 1025 2.20 1048 2.30 1074 2.42 1102 2.56 1131 2.71 1156 2.84 1181 2.98 1205 3.12 1229 3.27

325

350

375

400

425

450

475

500

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

m /h

5440

6120

6800

7480

8160

1084 1.86 1108 1.96 1132 2.06 1155 2.17 1177 2.27 1198 2.37 1219 2.48 1239 2.58

1134 2.22 1160 2.35 1185 2.47 1209 2.59 1231 2.70 1252 2.82 1274 2.94 1295 3.06

1174 2.58 1204 2.74 1232 2.90 1260 3.05 1283 3.18 1306 3.32

1211 2.97 1241 3.14 1270 3.31

Standard drive

Oversize drive

Note : Data includes pressure drops for standard filters and wet coils

RT-SVX20A-E4

Installation

Table 20 -YSD 060 Available static pressure

External Static Pressure (Pa)

100

125

150

175

200

225

250

275

300

Fan

RPM

Fan

RPM

m /h

RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW

2720

3060

3400

3740

4080

1043 0.62 1078 0.67 1113 0.72 1145 0.77 1177 0.82

1066 0.70 1103 0.76 1137 0.82 1169 0.87 1202 0.93 1232 0.98

1052 0.73 1089 0.79 1126 0.85 1162 0.92 1196 0.98 1229 1.05 1260 1.11 1289 1.17

1051 0.82 1087 0.87 1122 0.92 1156 0.98 1190 1.03 1224 1.10 1257 1.17 1288 1.24 1320 1.32

1055 0.90 1093 0.97 1127 1.03 1160 1.09 1193 1.15 1225 1.20 1256 1.26 1288 1.32

325

350

375

Fan

RPM

Fan

RPM

Fan

RPM

m /h

2720

3060

3400

3740

4080

1208 0.87 1238 0.93 1268 0.98

1262 1.04 1290 1.09 1319 1.15

1319 1.24 1347 1.30

Table 21 -YSH 060 Available static pressure

External Static Pressure (Pa)

150 175

100

125

200

225

250

275

300

Fan

RPM

Fan

RPM

m /h

RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW

2720

3060

3400

3740

4080

1069 0.63 1111 0.68 1151 0.74 1189 0.80 1225 0.87 1260 0.93 1293 0.99

1056 0.66 1100 0.73 1141 0.79 1180 0.85 1218 0.92 1255 0.98 1290 1.05 1324 1.12 1357 1.19

1033 0.70 1083 0.77 1131 0.84 1176 0.91 1216 0.98 1253 1.05 1289 1.13 1323 1.20 1357 1.27

1072 0.83 1117 0.90 1163 0.98 1209 1.06 1251 1.14 1292 1.21 1329 1.29

1161 1.06 1203 1.14 1245 1.23 1287 1.31

325

350

375

Fan

RPM

Fan

RPM

Fan

RPM

m /h

2720

3060

3400

3740

4080

1324 1.06 1355 1.13 1383 1.20

1390 1.26

Standard drive

Oversize drive

Note : Data includes pressure drops for standard filters and wet coils

RT-SVX20A-E4

Installation

Table 22 -YSD 072 Available static pressure

External Static Pressure (Pa)

100

125

150

175

200

225

250

275

300

Fan

RPM

Fan

RPM

m /h

RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW

3260

3670

4080

4490

4890

820 0.54 859 0.60 896 0.66 932 0.72 968 0.78 1000 0.84

814 0.58 854 0.64 891 0.71 928 0.78 963 0.84 996 0.91 1028 0.98

814 0.64 853 0.70 890 0.77 926 0.84 961 0.91 994 0.98 1027 1.05 1058 1.13

815 0.70 857 0.77 894 0.84 929 0.91 963 0.98 996

1.06 1028 1.14 1060 1.22 1090 1.29

818 0.77 860 0.85 899 0.93 936 1.01

970 1.08 1003 1.16 1035 1.24 1066 1.32 1096 1.40 1125 1.48

325

350

375

Fan

RPM

Fan

RPM

Fan

m /h

RPM

3260

3670

4080

4490

4890

1033 0.90 1063 0.96 1094 1.03

1061 1.05 1091 1.12 1121 1.18

1090 1.21 1118 1.28 1149 1.36

1120 1.38 1150 1.46 1178 1.54

1155 1.57 1181 1.66 1210 1.75

Table 23 -YSH 072 Available static pressure

External Static Pressure (Pa)

150 175

100

125

200

225

250

275

300

Fan

RPM

Fan

RPM

m /h

RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW

3260

3670

4080

4490

4890

824 0.52 866 0.59 907 0.65 947 0.71 986 0.78 1023 0.84 1059 0.92

826 0.57 865 0.64 903 0.71 943 0.78 979 0.84 1017 0.91 1053 0.98 1087 1.06

836 0.64 874 0.70 911 0.77 947 0.84 982 0.92 1017 1.00 1051 1.07 1085 1.15 1119 1.23

847 0.72 888 0.80 924 0.86 959 0.93 993 1.00 1026 1.08 1058 1.17 1089 1.25 1122 1.34 1153 1.42

818

0.74 858 0.81 900 0.88 940 0.97 977 1.05 1010 1.13 1042 1.20 1073 1.27 1104 1.36 1133 1.45 1163 1.54 1192 1.64

325

350

375

Fan

RPM

Fan

RPM

Fan

RPM

m /h

3260

3670

4080

4490

4890

1093 0.98 1126 1.06 1156 1.12

1121 1.13 1153 1.21 1185 1.29

1151 1.30 1182 1.38 1214 1.47

1184 1.50 1215 1.59

1221 1.72

Standard drive

Oversize drive

Note : Data includes pressure drops for standard filters and wet coils

RT-SVX20A-E4

Installation

Table 24 -YSD 090 Available static pressure

External Static Pressure (Pa)

100

125

150

175

200

225

250

275

300

Fan

RPM

Fan

RPM

m /h

RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW

4080

4590

5100

5610

6120

869 0.73 906 0.80 941 0.87 976 0.94 1009 1.01 1042 1.09 1073 1.17

887 0.85 922 0.92 958 0.99 991 1.07 1024 1.14 1055 1.22 1086 1.30 1117 1.39

865 0.89 905 0.98 943 1.06 979 1.15 1012 1.23 1044 1.31 1075 1.39 1105 1.47 1134 1.56 1163 1.65

1.13 965 1.22 1001 1.32 1036 1.41 1068 1.50 1099 1.59 1129 1.68 1157 1.77 1185 1.86 1212 1.95

1.24 963 1.33 995 1.42 1028 1.51 1061 1.61 1093 1.71 1126 1.82 1157 1.92 1185 2.02 1212 2.11 1239 2.21 1265 2.31

858 0.97 894 1.05 929

930

325

350

375

Fan

RPM

Fan

RPM

Fan

RPM

m /h

4080

4590

5100

5610

6120

1104 1.24 1134 1.32 1163 1.40

1146 1.47 1174 1.56 1203 1.65

1191 1.74 1218 1.83 1245 1.92

1238 2.04 1265 2.14 1292 2.24

1290 2.40 1316 2.51 1340 2.61

Table 25 -YSH 090 Available static pressure

External Static Pressure (Pa)

150 175

100

125

200

225

250

275

300

Fan

RPM

Fan

RPM

m /h

RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW

4080

4590

5100

5610

6120

851 0.67 889 0.73 926 0.80 962 0.88 997 0.95 1031 1.03 1067 1.11 1101 1.19 1134 1.26

880 0.80 919 0.88 955 0.94 989 1.01 1022 1.09 1054 1.17 1086 1.26 1117 1.35 1148 1.43 1180 1.52

1.12 1023 1.21 1056 1.28 1086 1.36 1116 1.43 1146 1.52 1175 1.62 1204 1.72 1232 1.81

985 1.22 1023 1.30 1058 1.40 1092 1.51 1124 1.60 1154 1.68 1182 1.77 1210 1.85 1237 1.94 1264 2.04 1290 2.14

1029 1.47 1061 1.55 1096 1.64 1130 1.74 1162 1.85 1193 1.96 1222 2.06 1250 2.16 1276 2.25 1302 2.34 1327 2.43 1352 2.53

869 0.87 910 0.94 950 1.03 989

949 1.14

325

350

375

Fan

RPM

Fan

RPM

Fan

RPM

m /h

4080

4590

5100

5610

6120

1166 1.34 1197 1.42 1229 1.50

1210 1.60 1241 1.69 1269 1.78

1260 1.91 1287 2.00 1316 2.10

1316 2.25 1342 2.36 1367 2.46

1376 2.64 1401 2.75 1425 2.87

Standard drive

Oversize drive

Note : Data includes pressure drops for standard filters and wet coils

RT-SVX20A-E4

Installation

Table 26 -YSD 102 Available static pressure

External Static Pressure (Pa)

100

125

150

175

200

225

250

275

300

Fan

RPM

Fan

RPM

m /h

RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW

4620

5200

5780

6350

6930

787 0.85 819 0.96 850

1.06 879

1.23 918

1.44 959

1.69 999

1.17

907 1.27

934 1.39

971 1.58

794 0.92 827 1.02 859

1.13 890

1.34 946 1.46

805 1.00 837

1.11

869 1.22 900 1.33 929

1.56 986 1.68 1011 1.80

1.81 1025 1.94 1051 2.06

792 1.00 823

1.10

854 1.21 884 1.33

914

1.45 943 1.57 971

786

1.03 818

1.14

848 1.24 877 1.34 905 1.46 933 1.58

961 1.71 988 1.84 1015 1.97 1041 2.10 1067 2.23 1092 2.36

325

350

375

400

425

450

475

500

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

m /h

4620

5200

5780

6350

6930

960

997

1.50 987 1.62 1013 1.73 1038 1.85 1064 1.97 1087 2.09 1111 2.21 1134 2.34

1.70 1023 1.83 1047 1.95 1070 2.08 1094 2.21 1117 2.34 1140 2.47 1163 2.60

1037 1.93 1061 2.06 1085 2.19 1107 2.33 1130 2.46 1151 2.60 1174 2.75 1194 2.88

1077 2.19 1100 2.32 1123 2.46 1147 2.61 1168 2.75 1189 2.89 1211 3.04 1231 3.19

1117 2.50 1140 2.64 1164 2.78 1187 2.92 1208 3.07 1229 3.22

Table 27 -YSH 102 Available static pressure

External Static Pressure (Pa)

100

125

150

175

200

225

250

275

300

Fan

RPM

Fan

RPM

m /h

RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW

4620

5200

5780

6350

6930

787 0.79 831 0.89 869 0.99 901

798 0.88 841 1.00 883 1.11 923 1.23 958 1.35 989 1.45 1017 1.55 1045 1.65 1070 1.75 1094 1.85

1.14 898 1.25 937 1.37 975 1.51 1011 1.64 1045 1.77 1075 1.89 1103 2.01 1128 2.12 1152 2.23

1.23 899 1.34 930 1.45 961 1.56 994 1.68 1028 1.82 1063 1.96 1097 2.11 1129 2.26 1159 2.40 1186 2.53 1210 2.65

1.57 970 1.70 999 1.81 1027 1.93 1055 2.05 1085 2.19 1118 2.34 1150 2.50 1181 2.66 1211 2.82 1239 2.97 1267 3.13

1.08 931

1.17 959

1.26 986

1.35 1011 1.43 1036 1.52

793 0.94 830 1.04 863

865

937

325

350

375

400

425

450

475

500

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

m /h

4620

5200

5780

6350

6930

1059 1.61 1082 1.69 1104 1.78 1127 1.87 1149 1.96 1170 2.05 1191 2.14 1212 2.24

1117 1.95 1139 2.05 1161 2.15 1182 2.24 1203 2.35 1222 2.44 1243 2.54 1262 2.64

1176 2.34 1198 2.45 1219 2.56 1241 2.67 1261 2.78 1280 2.88 1299 2.99 1319 3.11

1233 2.78 1256 2.90 1278 3.03 1298 3.15 1319 3.27

1291 3.27

Standard drive

Oversize drive

Note : Data includes pressure drops for standard filters and wet coils

RT-SVX20A-E4

Installation

Table 28 -YSD 120 Available static pressure

External Static Pressure (Pa)

100

125

150

175

200

225

250

275

300

Fan

RPM

Fan

RPM

m /h

RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW

5440

6120

6800

7480

8160

891 1.26 921

1.37 949

1.66 999

1.49

976 1.61 1001 1.73

913

1.42 942 1.54 971

1.78 1025 1.90 1052 2.03

913

976

1.48 941 1.60

969 1.73 997 1.86 1024 1.99 1050 2.12 1076 2.26 1101 2.39

895 1.48 923 1.59 949 1.70

1.83 1003 1.96 1029 2.10 1054 2.24 1079 2.38 1104 2.53 1129 2.67 1153 2.81

939

1.75 967 1.87 992 1.99 1017 2.12 1042 2.24 1066 2.38 1090 2.52 1114 2.67 1138 2.83 1161 2.98 1184 3.14 1207 3.30

325

350

375

400

425

450

475

500

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

m /h

5440

6120

6800

7480

8160

1027 1.86 1051 1.99 1075 2.12 1098 2.25 1120 2.38 1143 2.52 1166 2.66 1189 2.80

1076 2.17 1100 2.30 1122 2.44 1145 2.58 1167 2.73 1188 2.87 1210 3.02 1230 3.17

1126 2.53 1149 2.67 1172 2.81 1194 2.96 1216 3.12 1236 3.26

1176 2.96 1200 3.11 1222 3.26

Table 29 -YSH 120 Available static pressure

External Static Pressure (Pa)

150 175

100

125

200

225

250

275

300

Fan

RPM

Fan

RPM

m /h

RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW

5440

6120

6800

7480

8160

924 1.28 962 1.40

998 1.52 1028 1.64 1055 1.74 1082 1.85 1107 1.95 1131 2.06

921 1.37 955 1.49 992 1.63 1028 1.77 1063 1.91 1096 2.05 1126 2.19 1153 2.31 1178 2.43 1202 2.55

943

1.57 973 1.68 1002 1.80 1031 1.92 1062 2.06 1096 2.21 1129 2.36 1161 2.52 1192 2.68 1222 2.84 1249 2.99 1273 3.13

1031 2.06 1060 2.19 1086 2.32 1113 2.45 1139 2.57 1167 2.73 1198 2.90 1228 3.07 1257 3.24

1119 2.58 1146 2.79 1171 2.93 1195 3.07 1219 3.21 1243 3.36

325

350

375

400

425

450

475

500

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

Fan

RPM

m /h

5440

6120

6800

7480

8160

1154 2.16 1176 2.27 1197 2.37 1218 2.47 1238 2.58 1257 2.68 1276 2.78 1296 2.89

1224 2.67 1247 2.79 1268 2.91 1288 3.02 1308 3.14 1328 3.26

1296 3.26

Standard drive

Oversize drive

Note : Data includes pressure drops for standard filters and wet coils

RT-SVX20A-E4

Installation

Table 30 - WSD 060 Available static pressure

External Static Pressure (Pa)

100

125

150

175

200

225

250

275

300

Fan

RPM

Fan

RPM

m /h

RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW

2720

3060

3400

3740

4080

933 0.47 975 0.53 1014 0.58 1050 0.63 1085 0.68 1118 0.72

892 0.48 935 0.52 976 0.57 1016 0.62 1056 0.68 1093 0.74 1128 0.80 1160 0.86

904 0.55 945 0.60 985 0.65 1023 0.70 1061 0.75 1098 0.80 1135 0.86 1170 0.93 1203 1.00

913 0.63 959 0.68 1001 0.74 1038 0.80 1074 0.85 1109 0.90 1143 0.96 1177 1.01 1212 1.07 1244 1.14

933 0.74 972 0.78 1014 0.84 1056 0.90 1094 0.97 1128 1.03 1160 1.09 1193 1.15 1225 1.20 1256 1.26 1287 1.32

325

350

375

Fan

RPM

Fan

RPM

Fan

RPM

m /h

2720

3060

3400

3740

4080

1151 0.78 1183 0.83 1214 0.88

1192 0.91 1223 0.97 1252 1.02

1235 1.06 1265 1.12 1295 1.19

1276 1.21 1308 1.29

Table 31 - WSH 060 Available static pressure

External Static Pressure (Pa)

150 175

100

125

200

225

250

275

300

Fan

RPM

Fan

RPM

m /h

RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW

2720

3060

3400

3740

4080

941 0.47 990 0.52 1034 0.58 1077 0.64 1119 0.70 1158 0.75 1196 0.82 1231 0.88

937 0.52 992 0.58 1043 0.65 1088 0.71 1130 0.77 1169 0.83 1207 0.90 1244 0.96 1280 1.03

945 0.58 995 0.65 1045 0.72 1094 0.79 1141 0.86 1185 0.93 1224 1.00 1260 1.07 1295 1.14 1330 1.21

901 0.60 958 0.67 1009 0.73 1057 0.80 1101 0.88 1146 0.95 1192 1.03 1235 1.11 1277 1.18 1314 1.26

973 0.76 1026 0.84 1075 0.91 1120 0.98 1163 1.06 1204 1.14 1245 1.23

325

350

375

Fan

RPM

Fan

RPM

Fan

RPM

m /h

2720

3060

3400

3740

4080

1265 0.94 1298 1.00 1330 1.07

1314 1.10 1346 1.16 1380 1.24

1363 1.28

Standard drive

Oversize drive

Note : Data includes pressure drops for standard filters and wet coils

RT-SVX20A-E4

Installation

Table 32 - WSD 072 Available static pressure

External Static Pressure (Pa)

100

125

150

175

200

225

250

275

300

Fan

RPM

Fan

RPM

m /h

RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW

3260

3670

4080

4490

4890

705 0.38 751 0.44 794 0.50 835 0.56 874

0.62 912 0.68 948 0.75 982 0.81

736 0.47 779 0.53 821 0.59 860 0.65 898 0.72 936 0.79 971 0.86 1004 0.93

720 0.50 768 0.56 810 0.63 850 0.70 888 0.76 925 0.83 961 0.91 995 0.98 1027 1.06

709 0.53 753 0.60 799 0.67 843 0.75 882 0.82 919 0.89 954 0.97 987

1.04 1021 1.12 1053 1.20

705 0.58 749 0.64 791 0.72 832 0.79 874 0.88 914 0.96 950 1.04 985

1.12 1018 1.20 1050 1.28 1081 1.36

325

350

375

Fan

RPM

Fan

RPM

Fan

RPM

m /h

3260

3670

4080

4490

4890

1015 0.87 1047 0.93 1079 0.99

1037 1.00 1069 1.07 1099 1.14

1060 1.13 1091 1.21 1121 1.29

1085 1.28 1115 1.36 1145 1.45

1112 1.44 1140 1.53 1170 1.62

Table 33 - WSH 072 Available static pressure

External Static Pressure (Pa)

150 175

100

125

200

225

250

275

300

Fan

RPM

Fan

RPM

m /h

RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW

3260

3670

4080

4490

4890

750 0.42 794 0.48 838 0.55 882 0.61 923 0.67 963 0.73 1002 0.80 1038 0.87

695 0.40 745 0.46 789 0.51 830 0.58 871 0.65 910 0.72 950 0.79 987 0.86 1025 0.93 1060 1.00

737 0.49 787 0.57 831 0.64 870 0.70 908 0.76 944 0.84 980 0.92 1015 0.99 1051 1.07 1085 1.15

740 0.55 781 0.61 828 0.68 872 0.77 911 0.84 948 0.91 983 0.98 1016 1.06 1049 1.14 1081 1.23 1113 1.31

990 1.08 1023 1.15 1055 1.23 1086 1.31 1117 1.40 1147 1.49

761 0.64 795 0.70 828 0.76 871 0.83 913 0.91 953 1.00

325

350

375

Fan

RPM

Fan

RPM

Fan

RPM

m /h

3260

3670

4080

4490

4890

1073 0.94 1107 1.01 1140 1.09

1096 1.07 1129 1.15 1162 1.23

1118 1.23 1152 1.31 1185 1.39

1146 1.40 1178 1.49 1208 1.57

1178 1.59 1206 1.68 1236 1.77

Standard drive

Oversize drive

Note : Data includes pressure drops for standard filters and wet coils

RT-SVX20A-E4

Installation

Table 34 - WSD 090 Available static pressure

External Static Pressure (Pa)

100

125

150

175

200

225

250

275

300

Fan

RPM

Fan

RPM

m /h

RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW

4080

4590

5100

5610

6120

768 0.56 810 0.63 850 0.70 888 0.76 925 0.83 961 0.91 995 0.98 1027 1.06

763 0.63 807 0.70 850 0.78 889 0.85 926 0.93 961 1.00 995 1.08 1027 1.15 1059 1.23

770 0.71 810 0.78 849 0.86 890 0.95 929 1.03 967

1.12 1000 1.20 1034 1.28 1065 1.36 1095 1.45

782 0.83 823 0.90 861 0.97 897 1.05 933 1.12

969 1.23 1006 1.33 1041 1.42 1074 1.52 1104 1.60 1134 1.70

798 0.94 838 1.04

876

1.12

913

1.20 947 1.28 980 1.37 1013 1.47 1047 1.57 1080 1.67 1113 1.77 1144 1.88 1173 1.98

325

350

375

Fan

RPM

Fan

RPM

Fan

RPM

m /h

4080

4590

5100

5610

6120

1060 1.13 1091 1.21 1121 1.29

1091 1.32 1121 1.40 1151 1.49

1125 1.53 1154 1.62 1183 1.71

1163 1.79 1191 1.88 1217 1.97

1202 2.08 1229 2.17 1256 2.27

Table 35 - WSH 090 Available static pressure

External Static Pressure (Pa)

150 175

100

125

200

225

250

275

300

Fan

RPM

Fan

RPM

m /h

RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW

4080

4590

5100

5610

6120

787 0.57 831 0.64 870 0.70 908 0.76 944 0.84 980 0.92 1015 0.99 1051 1.07 1085 1.15

753 0.59 792 0.65 839 0.72 882 0.80 922 0.88 958 0.95 992 1.02 1026 1.10 1058 1.18 1090 1.27 1122 1.36

1.08 1011 1.18 1044 1.25 1076 1.33 1106 1.41 1136 1.49 1165 1.59

988 1.22 1026 1.31 1062 1.42 1096 1.52 1129 1.61 1158 1.69 1187 1.78 1214 1.86

1.20 963 1.28 990 1.35 1016 1.43 1045 1.51 1079 1.59 1115 1.69 1148 1.80 1180 1.91 1210 2.02 1239 2.12 1266 2.21

789 0.71 822 0.78 853 0.84 892 0.91 935 0.99 974

862 0.93 892 1.01 921 1.08 951 1.15

934

325

350

375

Fan

RPM

Fan

RPM

Fan

RPM

m /h

4080

4590

5100

5610

6120

1118 1.23 1152 1.31 1185 1.39

1153 1.45 1185 1.53 1216 1.62

1194 1.68 1223 1.78 1251 1.88

1242 1.96 1269 2.06 1296 2.17

1291 2.30 1317 2.39 1343 2.49

Standard drive

Oversize drive

Note : Data includes pressure drops for standard filters and wet coils

RT-SVX20A-E4

Installation

Over current protection

Appropriate connectors must be

provided. Flexible pipe supports are

required to prevent noise

transmission in the building's

structure. Ensure all the connections

are tightened.

Electrical connection

The branch circuit feeding the unit

must be protected in accordance

with national or local codes and

maximum unit amps indicated in

Table 36.

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.

Note:

Power wiring

1. Earthing must be executed in

compliance to national and local

legislation.

2. The machines are designed for a

short-circuit current of 10 kA. In

the event of a higher application,

contact your local sales office.

Factory supplied disconnect switch

(option)

The unit's 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 in the

compressor section. Mount the

disconnect switch onto the exterior

of the unit, between the condenser

coil and the electrical panel (near

the unit top corner). Wire the

disconnect switch from the power

terminal block in the panel to the

disconnect switch with the wire

bundle provided by following the

electrical diagram found in the unit.

The power supply cables must be

laid in leak-tight pipes and pass

through the bottom of the electric

panel for units without electric

heaters and through the heat

section when electric heater option

is selected.The cables must not be

taut.

Compressor electrical phasing

Proper phasing of the electrical

power wiring is critical for proper

operation and reliability of the scroll

compressor and fans.

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 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

Figure 13 - Power supply

determine the phase rotation of the

compressor motor.

1 = Power supply

RT-SVX20A-E4

Installation

The "ABC" indicator on the face of

the phase indicator will glow if

phase is ABC for terminals L1, L2,

L3.

WARNING! Disconnect all power,

including remote disconnects, and

discharge all capacitors before

servicing.

IMPORTANT! After completion of

wiring, check all electrical

Follow proper lockout/tagout

procedures to ensure the power

cannot be inadvertently energized.

After power is removed, allow

4 minutes for capacitors to

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 the unit.

discharge. Verify with an

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.

CAUTION! Units with scroll

compressors are not equipped with

crankcase heaters.

Table 36 - Unit wiring

Standard Supply Fan Motor

Oversized Supply Fan Motor

Maximum Overcurrent

Main power

supply

(V/Ph/Hz)

Minimum Circuit

Protective Device (Fuse

Ampacity

Minimum circuit

Protective Device (Fuse

ampacity

Unit Model

and size

or Circuit Breaker)

(A)

or Circuit Breaker)

(A)

Without Electric heat option

TSD/TSH 060

400/3/50

18,2

24,4

26,2

28,3

32,6

18,2

24,4

26,2

28,3

32,6

20,1

23,1

26,2

19,3

25,5

27,2

29,3

32,6

TSD/TSH 072

TSD/TSH 090

TSD/TSH 102

TSD/TSH 120

YSD/YSH 060

YSD/YSH 072

25,5

27,2

29,3

32,6

21,2

24,2

27,2

YSD/YSH 090

YSD/YSH 102

YSD/YSH 120

WSD/WSH 060

WSD/WSH 072

WSD/WSH 090

With Electric heat

TSD/TSH 060

TSD/TSH 072

TSD/TSH 090

TSD/TSH 102

400/3/50

26,4

37,8

27,5

38,9

40,2

51,1

51,8

41,9

56,3

59,3

39,2

50,1

51,8

40,8

55,2

58,3

TSD/TSH 120

WSD/WSH 060

WSD/WSH 072

WSD/WSH 090

RT-SVX20A-E4

Installation

Table 37 - Compressor and condenser motors

Compressor motor

Condensor fan motor

Main

Locked

rotor

amps

(A)

Main

power

supply

(V)

Locked

rotor

amps

(A)

Number

motors

Number

phases

Motor

(kW)

Rated

amps

(A)

Number

motors

Number

phases

Motor

(kW)

Rated

amps

(A)

Unit Model

and size

power

supply

(V)

TSD/TSH 060

TSD/TSH 072

TSD/TSH 090

TSD/TSH 102

TSD/TSH 120

YSD/YSH 060

YSD/YSH 072

YSD/YSH 090

YSD/YSH 102

YSD/YSH 120

WSD/WSH 060

WSD/WSH 072

WSD/WSH 090

400

4,2

5,6

10,3

13,7

400

0,3

1.0

3.0

1.0

3.0

2,8

7,1

2,8

7,1

2,8

7,1

0,56

0,3

6,2

14,3

100

4.5 / 2.8

10 / 7.5

74 / 48

4.5 / 3.5 10.7 / 9.2 74 / 62

4,2

5,6

10,3

13,7

0,56

0,3

6,2

14,3

100

4.5 / 2.8

10 / 7.5

74 / 48

4.5 / 3.5 10.7 / 9.2 74 / 62

4,5

11,8

12,6

14,3

101

100

0,56

6,2

Table 38 - Supply fan motor

Standard supply fan motor

Oversized supply fan motor

Main

power

supply

(V)

Locked

rotor

amps

(A)

Main

power

supply

(V)

Locked

rotor

amps

(A)

Number

phases

Motor

(kW)

Rated

amps

(A)

Number

motors

Number

phases

Motor

(kW)

Rated

amps

(A)

Unit Model

and size

motors

TSD/TSH 060

TSD/TSH 072

TSD/TSH 090

TSD/TSH 102

TSD/TSH 120

YSD/YSH 060

YSD/YSH 072

YSD/YSH 090

YSD/YSH 102

YSD/YSH 120

WSD/WSH 060

WSD/WSH 072

WSD/WSH 090

400

1,1

1,5

2,2

1,1

1,5

2,2

1,1

1,5

3,2

4,3

5,3

3,2

4,3

5,3

3,2

4,3

25,3

36,4

57.0

400

1,5

2,2

4,3

5,3

36,4

57.0

25,3

36,4

57.0

400

1,5

2,2

4,3

5,3

36,4

57.0

25,3

36,4

400

1,5

2,2

4,3

5,3

36.4

57.0

RT-SVX20A-E4

Controls

CAUTION!The unit 24 V transformer

must not be used to power

accessories mounted on site, other

than those proposed byTrane.

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.

Unit controlled by thermostat

Figure 14 -Thermostat wiring

RT-SVX20A-E4

Controls

TraneTHS01,THS02,THP01 and

THP02Thermostats are directly

connected to RTRM board

(J7 connector).

Unit controlled by BAS

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

TraneTHS03 andTHP03 thermostats

are directly connected to RTRM

board (J6 connector).

communication gateway (in the

case of an external BAS). Connect

one temperature sensor to each

Install the electrical link between the

thermostat (thermostat terminal

strip) and the unit (J6 or

J7 connector) in compliance with

the interconnection diagram.The

low voltage wiring must not be laid

in the same pipes as the power

cables.

unit. LonTalk communication

interface LTCl-R board allows ICS

communication between a

ReliaTel™ unit and LonTalk

communication applications.

Unit controlled byTracker™

supervisor

The sizes and lengths of the

thermostat connection wires are

given inTable 39.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.

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

Table 39 - Zone sensor wire and

maximum length

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

Maximum

Wire size

wire lengh

(mm²)

(m)

0,33

0,5

0,75

1,3

115

185

300

documentation.

RT-SVX20A-E4

Controls

The CO2 sensor is designed to

operate with a nominal 24 Vac

supply.The power supply should

maintain the voltage between 20 to

26 Vac.

CO2 sensors

Wall-mounted and duct-mounted

CO2 sensors

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.

Table 41 - CO2 sensor wire size

Maximum

Wire size

wire lengh

(mm²)

(m)

0,25

0,5

100

200

Table 40 - Specifications

Wall-mounted

Duct-mounted

Measuring range CO2

Accuracy at 25°C

0-2000 ppm

< +/- [40 ppm CO2 + 3% of

reading]

(included repeatability and

calibration uncertainty)

< +/- [30 ppm CO2 + 2% of

reading]

(included repeatability and

calibration uncertainty)

Non-linearity

< 1.0% full scale

0.3% full scale/°C

< 5.0% full scale/ 5 years

5 years

Temperature dependence of output

Long-term stability

Recommended calibration interval

Response time

1 minute (0-63%)

Operating temperature

Storage temperature

15-35°C

-5-45°C

-20-70°C

Humidity range

0-85% relative humidity

Airflow range

0-10 m/s)

Output signals (jumper selectable)

Resolution of analog outputs

0-10 Vdc

10 ppm CO2

Current output: max 500

Voltage output: min. 1000

Recommended external load

Power supply

Nominal 24 Vac

< 5 VA

Power consumption

Warm-up time

< 15 minutes

Dimensions (mm)

108 x 80 x 36

80 x 80 x 200

RT-SVX20A-E4

Controls

Wiring the wall-mounted CO2

sensor

Wiring the duct-mounted CO2

sensor

1. Connect the common wire from

the controller to the ground

terminal (terminal 0) (Figure 16).

2. For voltage output, connect the

signal wire to terminal V.

3. Connect the power according to

the guidelines in Power supply

requirements.

DVC setpoint potentiometer on

economizer module can be adjusted

as follows:

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

100% - 1500ppm

The outside air damper will

modulate from minimum position

setting to up to 100% while

attempting to maintain the CO2

setpoint.

Figure 15 - Wall-mounted CO2 sensor wiring

Figure 16 -Terminal connections and LED locations

1 = Outer jumper

2 = Power terminal

3 = Ground terminal

4 = Output terminals

RT-SVX20A-E4

Controls

Figure 17 - Wall-mounted CO2 sensor

Mounting the wall-mounted sensor

1. Select a proper location in the

room to mount the CO2 sensor.

Look for an interior wall with

good air circulation,

approximately 1.4 m from the

floor.

2. Remove the back plate from the

sensor and thread the power

wires and output signal wire

through the hole in the back

plate (Figure 17).

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.

3. Mount the back plate to the wall

with screws. Note that the arrow

on the back plate shows the

mounting direction.

4. On the circuit board, use the two

jumpers next to the terminal

block to set up the type of output

(0-10 Vdc) (Figure 18).

1 =Thinner section for cut-out

5. Insert the circuit board in the

back plate. (Figure 18.) Do not

press the metal tube while

inserting the circuit board.

6. Connect the power and signal

wires to the screw terminals of

the circuit board. Figure 16

shows the terminal locations.

Figure 18 - Jumper settings

RT-SVX20A-E4

Controls

Mounting the duct-mounted CO2

sensor

1. Select a proper location on the

duct to mount the CO2 sensor.

2. Drill a 22-25 mm hole in the

mounting surface for sensor

insertion (Figure 19).

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.

CO2 sensor maintenance

This CO2 sensor has excellentThis

CO2 sensor has excellent stability

and requires no maintenance. In

most environments the

recommended calibration interval is

five years. A trained service

technician can use a portable CO2

meter to certify sensor 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

Figure 19 - Duct-mounted CO2 sensor

diameter

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.

1 /8 in. (42 mm)

/8 in. (22 mm)

1 /8 in.

(42 mm)

Figure 20 - Duct-mounted CO2 sensor insertion depth

2 /2 in. (64 mm)

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

RT-SVX20A-E4

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 J11 and J12.

0 W corresponds to closed fresh air

damper.

270 W corresponds to 50% open

fresh air damper.

Figure 21 - Remote potentiometer dimensions

Figure 22 - Remote potentiometer wiring

1 = Remote potentiometer

2 = ECA Board

WH = White wire

RD = Red Wire

BU = Blue wire

_____ Factory wiring

------- Field wiring

RT-SVX20A-E4

Controls

Figure 24 - Connection of fire thermostat

withTCI board

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.

At the selected location, cut a hole

to clear element guard and drill

holes for mounting screws

according to Figure 23. Connect

wires according to Figure 24.

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.

1 = Field-supplied emergency stop

device

2 = Remove factory-supplied jumper

Figure 23 - Duct mounting of fire

thermostat

1 = Fire thermostat

2 = Hole in the duct

RT-SVX20A-E4

Controls

Clogged filter detector

Smoke detector

This device is mounted in the

indoor fan 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.The setting range is 40 to

300 Pa.

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.

When smoke is detected, it shuts off

the unit. A dry contact is available

on the control panel for a remote

default.

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.

Figure 25- Clogged filter sensor

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.

1 = Secure with one screw

2 = Route wire harness between coil blockoff and roof rib

3 = Secure with pop-in wire tie

4 = Remove filter if necessary

RT-SVX20A-E4

Controls

"THS" are non programmable

thermostats, "THP" are

programmable.

Thermostats

6 thermostats are available:

THS01/THP01,THS02/THP02 and

THS03/THP03.

01 and 02 series are conventional

thermostat, 03 series are dedicated

to the controller.

Table 42 -Thermostat 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

auxiliary heating stages

(elec. heater, HWC )

heating stages

(heat pump mode)

none

liquid crystal display

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

RT-SVX20A-E4

Controls

Other accessories available

Communication Interfaces

Remote temperature sensor to be

used withTHS/THP 01-02.

TRANE Communication Interface

(TCI-R) board

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 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

LCIV 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.

RT-SVX20A-E4

Unit Options

The hot water coil is factory

Hot water coil

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.

(Down flow units only)

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.

Water connection inlet/outlet:

1 ¼" ISO R7.

Installation and connection

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.

Table 43 - Ethylene glycol percentage

Ethylene glycol

Freezing point

percentage

(%)

(°C)

-4

Figure 26 - Hot water coil connections

-10

RT-SVX20A-E4

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 40 seconds but the soft

starter is factory set to the

maximum starting time value,

40 seconds.

Figure 27 - Soft starter

1 =Three phase mains connections

2 = Motor connections

3 = Settings

4 = Status outputs

5 = Controls

6 = LEDs

RT-SVX20A-E4

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 28).

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 28 - 0-25% manual fresh air hood

1 = Intake hood

2 = Wire mesh

3 = Slidable damper

RT-SVX20A-E4

Unit Options

This option includes exhaust hoods

and gravity dampers located in the

return air section. 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 relieve air outside of

the building.

Figure 29 - Economizer flow chart with barometric relief

Downflow version

Horizontal flow version

R = return

S = supply

F = fresh air

E = exhaust

RT-SVX20A-E4

Operation

Figure 30 -Terminal strip

The terminal strip for attaching the

thermostat wires is located on the

RTRM module in the control

compartment.

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:

COM

When the unit is operating from a

conventional thermostat or other

binary input, the economizer

setpoint feature, relative to the

cooling and heating setpoints, is

lost.The economizer control is

based strictly on a signal from the

thermostat, but still maintains

mixed air temperature control of

53° 3°F when in the economizer

mode.The economizer enable and

disable function is still determined

by the outside air sensor through

the RTRM.

•

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.

•

Proportional Integral (PI) control

W1/0

is not available.

Zone Sensor Diagnostics are

only available on the RTRM

module on the J6 terminals,

instead of at the Zone Sensor in

the space.

If a single-stage thermostat is used,

only the economizer (if enabled) or

the compressor (if economizer is

disabled) will operate on a call for

cooling. A twostage thermostat is

required to achieve economizer

operation and compressor

•

Intelligent Fall-Back is not

available. If a failure occurs in

the device controlling the

equipment, operation will cease.

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.

operation at the same time.

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.

With economizer enabled, aY1 call

for 1st stage cooling will be the

economizer.The damper will

modulate between minimum

position and 100% to maintain

mixed air temperature at 53° 3°. At

50°F the damper will be at

•

Remote Sensing Capabilities are

not available on most

mechanical thermostats.

minimum position. If the

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.

economizer is enabled, aY2 call for

2nd stage cooling will start the first

compressor if required. If the

economizer is disabled, 1st stage

(Y1) will be the first compressor. If

the unit has two compressors, a call

for 2nd stage cooling (Y2) will start

the second compressor. When using

a conventional thermostat, or other

binary input, the ReliaTel controls

will only allow two stages of

cooling.

•

A built-in algorithm which allows

for automatic reset of the

discharge air temperature while

economizing is not available.

RT-SVX20A-E4

Operation

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.

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.

Thermostat signals are as follows:

R 24VAC power to thermostat

Y1 Call for compressor 1 or first

stage cooling

Y2 Call for compressor 2 or 2nd

stage cooling

G Call for supply fan

W1 Call for heat 1

W2 Call for heat 2

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.

Compressor protection and

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 only:

X2 Call for emergency heat

O Switchover valve On = cooling,

Off = heating

T Bias for heat anticipation for those

mechanical thermostats that use

this function

Table 44

Conventional thermostat Gas / Electric, Electric Heat

Function when energized

Input / connection

G (fan)

Fan runs continuously except during unoccupied mode (see next page)

Compressor #1 runs or economizer operates

Y1 (compressor 1 or economizer)

Y2 (compressor 2 or compressor 1 while economizing)

W1 (gas / electric heat first stage)

W2 (gas / electric heat 2nd stage)

Compressor #2 also runs, or #1 compressor runs while economizing

1st stage heat

2nd stage heat (if available)

Table 45

Conventional thermostat Heat pump

Function when energized

Input / connection

Cooling mode

G (fan)

Fan runs continuously except during unoccupied mode (see next page)

Reversing valve in cool mode

O (reversing valve during cooling)

Y1 + O (first cooling stage)

Y1 +Y2 + O (2nd cooling stage)

Heating mode

Compressor #1 runs or economizer operates

Compressor #2 also runs, or #1 compressor runs while economizing

G (fan)

Fan runs continuously except during unoccupied mode (see next page)

Both compressors run

Y1 (both compressors 1st heating stage)

Y2 (during heating nothing happens)

W2 (electric heat 2nd stage)

X2 (electric heat only)

No change

2nd stage (electric) heat

Electric heat only - no compressors

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.)

RT-SVX20A-E4

Operation

Unoccupied mode

Setting the economizer or

0-50% motorized hood

(option)

The ECA board is mounted on the

damper actuator.To access the ECA

board on economizers:

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

•

Remove the filter access panel of

the unit.

•

The electrical power must be

disconnected to set the

unoccupied mode as follows:

•

Contacts open: Normal occupied

operation.

minimum position and check the

economizer.

•

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.

•

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

ventilation position.

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 (see Figure 25).

When the arrow on the dial's

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% (see figure 25).

Cooling/Economizer Operation

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

shown inTable 46.

•

Table 46 - Cooling/Economizer Operation withThermostat

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

Notes:

40 to 50 ton CV only

This unit has 3 stages of cooling if using a zone sensor. If using a conventional thermostat it has 2 stages as

follows:

Y1 = 1st stage

Y1 +Y2 = 3rd stage

VAV

Thermostat inputs are ignored on VAV units.

RT-SVX20A-E4

Operation

Table 47 - ECA board LED

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 42.

OFF:

No Power or Failure

ON:

Normal, OK to Economize

Normal, Not OK to

Economize

Slow Flash:

Fast Flash:

Pulse Flash:

1 Flash:

Communications Failure

Error Code

Actuator Fault

2 Flashes:

3 Flashes:

4 Flashes:

5 Flashes:

6 Flashes:

7 Flashes:

8 Flashes:

9 Flashes:

10 Flashes:

11 Flashes:

CO2 Sensor

RA Humidity Sensor

RA Temp Sensor

OA Quality Sensor

OA Humidity Sensor

OA Temp Sensor

MA Temp Sensor

RAM Fault

Figure 31 - Minimum fresh air adjustment

ROM Fault

2-10 VDC

FEEDBACK

INPUT

POWER EXHAUST

CONTACTS

EXF

EEPROM Fault

MIXED AIR SENSOR INPUT

COMMON

2-10 VDC

CONTROL

OUTPUT

MAT

COMMON

OHS INPUT

OAH/

OAE

NOT USED-OAT IS

CONNECTEDTO RTRM

OAT

RAT

While setting the minimum position

the damper may move towards 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.

MIN POS.

SETPOINT

0-50%

RA INPUT

COMMON

GREEN

LED

ABCD

SETTINGS

COMMON

RHS INPUT

RAH/

RAE

CO2 "PURGE"

SETPOINT

ADJUSTTMENT

500-1500 PPM

CO2 SENSOR INPUT

COMMON

DCV

MODBUS

COMMON

24VAC

SHORTED=CLOSED

OPEN=ON BOARD POT.

270 omega = 50%

REMOTE

MINIMUM

POTENTIOMETER

WHT

RED

BLUE

1 = ECA board

RT-SVX20A-E4

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

CAUTION! Before proceeding with

the following test procedures, make

sure that thermostat or zone sensor

is off.

configuration, insulated, and

water-tight

•

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

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

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

•

Note: 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.

•

RT-SVX20A-E4

Operation

Table 48 - ServiceTest Guide for Component Operation on cooling only units

Test modes

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 startup

of the unit, this method allows the

technician to cycle a component

"On" and have up to 1 hour to

complete the check.

Fan On

Economizer

Cool 1

Min

Open

Min

Off

Cool 2

Min

Heat 1

Min

Off

Heat 2

Min

2. AutoTest Mode

* With Optional Accessory

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

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

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

Table 49 - ServiceTest Guide for Component Operation on Heat Pump Units

automatically revert to the applied

"System" control method.

For unit test steps and test modes,

values to cycle the various

components, refer toTables 48

and 49.

Fan On

Economizer

Cool 1

Min

Open

Min

Off

Cool 2

Min

Heat 1

Min

Off

Heat 2

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.

RT-SVX20A-E4

Operation

Figure 32 - Gas valve

Note: Unit to be installed outside

only.

Unit start-up

Verification of gas valve settings -

(Reserved for the qualified gas

technician)

G20 - 7.5mbar

G25 -10.5mbar

Note: Expansion valve must be

adapted to the type of gas used:

3/32"

•

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.

1 = Screw to set gas valve

Table 50 - Gas type designation per country

Destination countries

Pressure in mbar

Category

II2E+3P

I2E

DE-LU-PL

20/25 37

CH-ES-GB-IE-PT-CZ-GR

20 37

25 30

II2H3P

II2L3P

I2H

IT-AT-NO-FI-SE-EE-LT-LV

28-30/37

20/25

I3+

I2E

I2H

I3P

DK-SK-SI-TR

BE-PL

AT-DE-LU-HU-SK

I3P

I2H

Table 51 - Gas burner data

Burner

G120

G200

G25

0,0

G250

Gas Type

G20

0,0

G25

0,0

G31

0,0

G20

0,0

G31

G20

0,0

G25

G31

0,0

Heating Input (kW)

Heating Output (kW)

Efficiency

0,0

41,9

93%

3,5

0,0

24,6

93%

2,8

25,1

93%

2,1

41,3

93%

4,7

41,7

93%

5,5

51,9

52,3

52,6

93%

4,4

93%

3,3

#DIV/0!

5,9

#DIV/0!

Gas Flow rate (Nm /h)

6,9

Specific Heating Capacity (MJ/kg)

Heating Output per stage (1st/2nd) (%)

Inlet pressure Min/Nominal/Max (mbar)

Low pressure switch setting (mbar)

Manifold pressure (mbar)

34,02

29,3

46,34

34,02

29,3

46,34

34,02

29,3

46,34

0%-100%

20 / 25 / 30

0%-70%-100%

17 / 20 / 25

25 / 37 / 45

17 / 20 / 25

20 / 25 / 30

25 / 37 / 45

17 / 20 / 25

20 / 25 / 30

25 / 37 / 45

10,5

7,5

10,5

24,9

7,5

24,9

7,5

24,9

No of injectors

Injector size (Drill / mm)

(33) / 2.87mm

(51) / 1.70mm

(1/8") / 3.175mm

(49) / 1.85mm

(1/8") / 3.175mm

(49) / 1.85mm

Smoke analysis

G20 - 20mbar G25 - 25mbar G31 - 37mbar G20 - 20mbar G25 - 25mbar G31 - 37mbar G20 - 20mbar G25 - 25mbar G31 - 37mbar

Gas / Voltage

400/3/50

CO %

0.0012%

59 ppm

8,29%

0.0017%

44 ppm

9,20%

0.0003%

8.7 ppm

8,90%

0.0020%

10 ppm

7,10%

0.0015%

10 ppm

7,10%

0.0011%

11 ppm

8,28%

0.0020%

10 ppm

7,10%

0.0015%

10 ppm

7,10%

0.0011%

11 ppm

8,28%

Nox ppm

CO2 %

Notes:

(1) G20 heating output given for 34,02 MJ/m (15°C-1013)

(2) G25 heating output given for 29,30 MJ/m (15°C-1013)

(3) G31 heating output given for 46.34 MJ/kg

RT-SVX20A-E4

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?

Has the indoor airflow been

checked and adjusted if

necessary?

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.

Position the cooling setpoint

approximately 10° below room

temperature and place the fan

switch in the "AUTO" or "ON"

position.

•

Note: Always route refrigerant

hoses through the port hole

provided and ensure that the

compressor access panel is in place.

•

Turn on unit main power supply.

Cooling shutdown

The condenser fan motor,

compressor and supply fan motor

should operate automatically.

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".

•

There will be a delay of up to

5 minutes before the unit starts in

cooling mode.

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.

•

Has the unit been checked for

tubing and sheet metal rattles or

any unusual noises?

Are all covers and panels in

place and properly fastened?

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).

RT-SVX20A-E4

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.

RT-SVX20A-E4

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).

RT-SVX20A-E4

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 52 - 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).

RT-SVX20A-E4

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.

•

Have the air discharge grilles

been adjusted to balance the

system?

Has the ductwork been checked

for air leaks and any

condensation?

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.

•

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 53 - 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

RT-SVX20A-E4

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 54 - 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.

RT-SVX20A-E4

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

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.

Motors and drives system

components

Economizer gaskets, for

replacement if necessary

Condenser coils, for cleaning

Safety controls, for mechanical

cleaning

•

Condenser coil

•

Electrical components and

wiring, for replacement and

tightening of connections as

necessary

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.

•

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

The unit, to ensure there is no

obvious deterioration

•

Keep all vegetation away from the

condenser coil area.

Hot water coil (option)

Before the heating season, your

service technician may examine the

following areas of your unit:

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.

•

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.

RT-SVX20A-E4

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.

RT-SVX20A-E4

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

RT-SVX20A-E4

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.

RT-SVX20A-E4

Maintenance

Table 55 -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

RT-SVX20A-E4

Maintenance

ToTest Humidity Sensors

Return Air Humidity Sensor

Outdoor Humidity Sensor

ECA

RAH/RAE

OAH/OAE

To test this circuit, place a DC milliamp meter in series with either of the leads to the humidity sensor. If the reading

is 0ma, polarity may be reversed. Reverse + & - and retest. If the reading does not correspond to the table below,

check the output voltage from the ECA with the sensor disconnected. It should be approximately 20VDC. If so, and

all connections are intact, replace the sensor. If 20VDC is not present, yet the ECA green LED is on, the ECA module

has failed.Humidity sensor accuracy : +/-10% RH.

Table 56 - Humidity sensor test

RH%

100%

97.7

DCma

20.000

19.636

19.286

18.947

18.621

18.305

18.000

17.705

17.419

17.143

16.875

16.615

16.364

16.119

15.882

15.652

15.429

15.211

15.000

14.795

14.595

14.400

14.211

14.026

13.846

13.671

13.500

13.333

13.171

13.012

12.857

12.706

12.558

RH%D

52.6

51.7

50.8

50.0

49.2

48.4

47.6

Cma

12.414

12.273

12.135

12.000

11.868

11.739

11.613

11.489

11.368

11.250

11.134

11.020

10.909

10.800

10.693

10.588

10.485

10.385

10.286

10.189

10.093

10.000

9.908

RH%

31.2

30.8

30.3

29.9

29.4

29.0

28.6

28.1

27.7

DCma

9.000

8.926

8.852

8.780

8.710

8.640

8.571

8.504

8.438

8.372

8.308

8.244

8.182

8.120

8.060

8.000

7.941

7.833

7.826

7.770

7.714

7.660

7.606

7.552

7.500

7.448

7.397

7.347

7.297

7.248

7.200

95.5

93.4

91.4

89.4

87.5

85.7

83.9

82.1

80.5

78.8

77.3

46.8

46.1

45.3

44.6

43.9

43.2

42.5

41.8

41.2

40.5

39.9

39.3

38.7

38.1

37.5

27.3

26.9

26.5

26.1

25.8

25.4

25.0

24.6

24.3

23.9

23.6

23.2

22.9

22.5

22.2

21.9

21.6

21.2

20.9

20.6

20.3

20.0

75.7

74.3

72.8

71.4

70.1

68.8

67.5

66.2

65.0

63.8

62.7

61.5

60.4

59.4

58.3

57.3

36.9

36.4

35.8

35.3

34.7

34.2

33.7

33.2

32.7

32.2

31.7

9.818

9.730

9.463

9.558

9.474

9.391

56.3

55.4

54.4

53.5

9.310

9.231

9.153

9.076

RT-SVX20A-E4

Notes

RT-SVX20A-E4

Literature Order Number

Date

RT-SVX20A-E4

0606

Supersedes

RT-SVX20A-E4_1105

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.

www.trane.com

For more information, contact your local

American Standard Europe BVBA

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

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

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