Trane RT-SVX19A-E4 Owner's manual

Voyager™ II Rooftop units

Cooling only TKD/TKH 155 175 200 250

Reversible WKD/WKH 125 155 200

Gas-FiredYKD/YKH 155 175 200 250

R22 - R407C Refrigerant

Installation

Operation

Maintenance

RT-SVX19A-E4

Foreword

These instructions are given as a

guide to good practice in the

installation, start-up, operation, and

maintenance by the user, ofTrane

TKD/TKH, WKD/WKH andYKD/YKH

units.They do not contain full

service procedures necessary for

the continued successful operation

of this equipment.The services of a

qualified technician should be

employed through the medium of a

maintenance contract with a

reputable service company. Read

this manual thoroughly before unit

start-up.

TKD/TKH units are designed to

operate in cooling mode only, with

optional auxiliary heat (electric

heater or hot water coil).

WKD/WKH can operate in cooling

mode or heating mode by reversing

the refrigeration cycle with or

without auxiliary heat.

YKD/YKH units are designed to

operate In cooling mode and

equipped with a gas fired heating

module.

TKD/TKH, WKD/WKH andYKD/YKH

units are assembled, pressure

tested, dehydrated, charged and run

tested before shipment.

Warnings and cautions

Warnings and Cautions appear at

appropriate sections throughout

this manual.Your personal safety

and the proper operation of this

machine require that you follow

them carefully.The constructor

assumes no liability for installations

or servicing performed by

unqualified personnel.

WARNING! : Indicates a potentially

hazardous situation which, if not

avoided, could result in death or

serious injury.

CAUTION! : Indicates a potentially

hazardous situation which, if not

avoided, may result in minor or

moderate injury. It may also be

used to alert against unsafe

practices or for equipment or

property-damage-only accidents.

Safety recommendations

To avoid death, injury, equipment or

property damage, the following

recommendations should be

observed during maintenance and

service visits:

1. The maximum allowable

pressures for system leak testing

on low and high pressure side

are given in the chapter

"Installation". Always provide a

pressure regulator.

2. Disconnect the main power

supply before any servicing on

the unit.

3. Service work on the refrigeration

system and the electrical system

should be carried out only by

qualified and experienced

personnel.

Reception

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

delivery note.The customer (or the

site representative) should send a

registered letter to the last carrier

within 3 days of delivery.

Reception in France only:

Concealed damage must be looked

for at delivery and immediately

treated as visible damage.

Reception in all countries except

France:

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.

General information

RT-SVX19A-E42

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

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.

Refrigerant

The refrigerant provided by the

manufacturer meets all the

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.

Maintenance contract

It is strongly recommended that you

sign a maintenance contract with

your local Service Agency.This

contract provides regular

maintenance of your installation by

a specialist in our equipment.

Regular maintenance ensures that

any malfunction is detected and

corrected in good time and

minimizes the possibility that

serious damage will occur. Finally,

regular maintenance ensures the

maximum operating life of your

equipment. We would remind you

that failure to respect these

installation and maintenance

instructions may result in

immediate cancellation of the

warranty.

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.

Do not use the unit's heater as

temporary heat without completing

the start-up procedures detailed

under "Unit Start-Up".

TheTrane Company will not assume

responsibility for equipment

damage resulting from

accumulation of condensate on the

unit electrical components.

Training

To assist you in obtaining the best

use of it and maintaining it in

perfect operating condition over a

long period of time, the

manufacturer has at your disposal a

refrigeration and air conditioning

service school. The principal aim of

this is to give operators and

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.

General information

3RT-SVX19A-E4

RT-SVX19A-E44

Contents

Foreword 2

Warnings and Cautions 2

Safety recommendations 2

Reception 2

Warranty 3

Refrigerant 3

Maintenance contract 3

Storage 3

Training 3

Installation 6

Reception of units 6

Roof curb installation 7

Dimensions/Weights/Clearances 8

Installing the unit 10

Connection of duct network 11

Condensate drain piping 12

Gas pipework installation 13

Filter installation 14

Supply fan adjustment 15

Component air pressure drops 17

Supply fan performances 20

Electrical connection 26

Controls 31

Control wiring 31

CO2sensors 33

Remote potentiometer 36

Fire thermostat 37

Clogged filter detector 38

Smoke detector 38

High temperature safety thermostat 38

Remote fault relay 38

Thermostats 38

Communication Interfaces 39

Contents

5RT-SVX19A-E4

Unit Options 40

Hot water coil 40

Electric Heater 41

Soft Starter 41

0 - 25% fresh air hood 42

Barometric relief 43

Operation 44

Operation with a conventional thermostat 44

Setting the economizer 47

Test procedures 49

Test modes 50

Unit start-up 51

Cooling without an Economizer 54

Low Ambient Operation 55

Cooling with an Economizer 55

Economizer Set-Up 56

ReliaTel™ Control Heating Operation 56

Ignition Module 56

Final installation checklist 57

Maintenance 58

End user routine maintenance 58

Service technician maintenance 59

Troubleshooting 60

Installation

RT-SVX19A-E46

General information :The

installation must conform to all

local standards and regulations.

Reception of units

Rooftop unit

The unit is supplied on a wooden

frame. It is recommended to check

the machine's condition upon

reception.

There are two ways to handle the

unit:

1. Use the openings in the wooden

frame to handle the machine

using a fork lift, in accordance

with applicable safety

regulations.

2. Use a lifting beam correctly

adjusted to fit the unit

(Figure 1a).

Unit handling

The units are supplied on the truck

but are not unloaded. An opening is

provided on each corner of the unit

base to facilitate handling.

4 shackles and 4 slings are required.

Use a lifting beam to prevent the

cables pressing too hard on top of

the unit during lifting.

Figure 1a indicates the position of

the center of gravity and the lifting

recommendations.

Important: For unit to fit on the

roof curb the fork lift pockets must

be removed.

Figure 1a - Unit handling

1 = Clevis

2 = Base Rail

3 = Spreader Bar

L = Length (Center of Gravity)

W = Width (Center of Gravity)

Refer toTable 2 for weights and center of gravity.

Roof curb Installation

(TKD-WKD-YKD

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.Two types of roof

curbs are available:The standard

version to allow the installation of

the unit on a flat roof and the

adjustable version for a sloped roof

installation. (See Figure 1b for the

maximum slope correction of

adjustable roofcurb.)

The adjustable roof curbs are

supplied pre-assembled on a skid.

Two types of self-adhesive seals are

provided separately. (40 mm wide

for the perimeter, 20 mm wide for

the cross pieces). Make sure they

are properly installed where

indicated to assure an adequate

curb to unit seal.

Instructions for the roof curb

assembly and installation with curb

dimensions are provided with each

roof curb kit.

Table 1 - Sling lengths and maximum unit weight

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

Figure 2 - Waterproofing

1 = Roofcurb

2 = Roof membrane

3 = Seal

4 = Rooftop

Unit size A (mm) B (mm) Maximm weight

125 3000 1900 644

155 3000 1900 773

175 3000 1900 810

400 3500 2200 1001

500 3500 2200 1027

Installation

7RT-SVX19A-E4

Installation

RT-SVX19A-E48

Dimensions/Weights/Clearances

Figure 3 - Minimum clearances

Table 2 - Minimum clearances (mm)

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

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

requirement plan.

Minimum clearance

UNIT 12345

YKD/YKH 155 1900 1800 1220 1000 1300

YKD/YKH 175 1900 1800 1220 1000 1300

YKD/YKH 200 1900 1800 1220 1000 1300

YKD/YKH 250 1900 1800 1220 1000 1300

TKD/TKH 155 1900 1800 1220 1000 1300

TKD/TKH 175 1900 1800 1220 1000 1300

TKD/TKH 200 1900 1800 1220 1000 1300

TKD/TKH 250 1900 1800 1220 1000 1300

WKD/WKH 125 1900 1800 1220 1000 1300

WKD/WKH 155 1900 1800 1220 1000 1300

WKD/WKH 200 1900 1800 1220 1000 1300

Installation

9RT-SVX19A-E4

Installation

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

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

Table 3b - Weights of Options & accessories

Notes :

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

To estimate shipping weight add 2.3 kg to net weight.

UNIT Standard Roof

Curb Adjustable Roof

Curb Economizer Manual Outside

Air Damper

Motorized

Outside Air

Damper Electric heater Hot water coil

YKD 155 93 220 30 15 27

YKD 175 93 220 30 15 27

YKD 200 107 260 37 15 34

YKD 250 107 260 37 15 34

YKH 155 30 15 27

YKH 175 30 15 27

YKH 200 37 15 34

YKH 250 37 15 34

TKD 155 93 220 30 15 27 14 85

TKD 175 93 220 30 15 27 14 85

TKD 200 107 260 37 15 34 18 110

TKD 250 107 260 37 15 34 18 110

TKH 155 30 15 27 14

TKH 175 30 15 27 14

TKH 200 37 15 34 18

TKH 250 37 15 34 18

WKD 125 93 180 20 15 27 18 85

WKD 155 93 220 30 15 27 18 85

WKD 200 107 260 37 15 34 18 110

WKH 125 20 15 27 18

WKH 155 30 15 27 18

WKH 200 37 15 34 18

Maximum weight Corner Weight (1) Center of Gravity

Shipping Net A B C D Length (L) Width (W)

UNIT (kg) (kg) (kg) (kg) (kg) (kg) (mm) (mm)

YKD/YKH 155 866 698 243 176 118 162 1143 737

YKD/YKH 175 902 735 251 188 127 169 1168 737

YKD/YKH 200 1128 920 324 242 151 203 1321 838

YKD/YKH 250 1154 946 327 251 159 208 1346 838

TKD/TKH 155 790 623 219 159 103 142 1143 711

TKD/TKH 175 827 660 227 172 112 149 1168 711

TKD/TKH 200 1050 841 297 221 138 185 1321 838

TKD/TKH 250 1075 866 300 230 145 206 1346 838

WKD/WKH 125 792 625 218 159 105 144 1143 711

WKD/WKH 155 809 642 228 162 105 147 1143 711

WKD/WKH 200 1080 871 291 226 155 199 1346 889

Installation

RT-SVX19A-E410

Installing the unit

1) Unit mounting on roof

Fix the rooftop curb on the joint

beam of the building's structure.

Make the rooftop curb's sealing

surface level using angle brackets

adjusted by screw bolts, located

around its perimeter. Place the

adhesive seals on the curb's sealing

surface (perimeter and cross

pieces). Make the rooftop leak-tight

around the curbs before installing

the unit, in compliance with current

construction standards.

Note:The unit must be installed

perfectly level to ensure

condensates flow from the

condensate tray.

The rooftop unit nests into the curb

and is supported by it. Position the

unit, taking care to comply with the

indicated directions: the unit's

discharge and intake openings must

match those of the curb.

2) Installing the unit on the ground

To install the unit on the ground, its

base must be level and supported

securely.

For horizontal discharge units, a

support is required such as a metal

or concrete slab whose height must

be determined according to the

amount of snow cover, to prevent

problems with condensation

drainage and obstruction of the

external coil. If necessary use an

anti-vibration material between the

rooftop unit's base and the support.

Note: Unit installation must comply

to local codes

Figure 4

1 = Frame

Figure 5

1 = Concrete slab

RT-SVX19A-E4

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