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
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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

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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
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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.
A
B

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
4
12
3
Unit size A (mm) B (mm) Maximm weight
kg
125 3000 1900 644
155 3000 1900 773
175 3000 1900 810
400 3500 2200 1001
500 3500 2200 1027
Installation
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Installation
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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
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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
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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
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