Only qualified personnel should install and service the equipment.The installation, starting up, and servicing
of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and
training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or
serious injury.When working on the equipment, observe all precautions in the literature and on the tags,
stickers, and labels that are attached to the equipment.
Read this manual thoroughlybefore operating or servicing
this unit.
Warnings, Cautions, and Notices
Safety advisories appear throughout this manual as
required.Your personal safety and the proper operation of
this machine depend upon the strict observance of these
precautions.
The three types of advisories are defined as follows:
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury. All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards.To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state electrical codes.
WARNING
CAUTIONs
NOTICE
Indicates a potentially hazardous
situation which, if not avoided, could
result in death or serious injury.
Indicates a potentially hazardous
situation which, if not avoided, could
result in minor or moderate injury. It
could also be used to alert against
unsafe practices.
Indicates a situationthat could resultin
equipment or property-damage only
accidents.
Important Environmental Concerns
Scientific research has shown that certain man-made
chemicals can affect the earth’s naturally occurring
stratospheric ozone layer when released to the
atmosphere. In particular, several of the identified
chemicals that may affect the ozone layer are refrigerants
that contain Chlorine, Fluorine and Carbon (CFCs) and
those containing Hydrogen, Chlorine, Fluorine and
Carbon (HCFCs). Not all refrigerants containing these
compounds have the same potential impact to the
environment.Trane advocates the responsible handling of
all refrigerants-including industry replacements for CFCs
and HCFCs such as saturated or unsaturated HFCs and
HCFCs.
Important Responsible Refrigerant
Practices
Trane believes that responsible refrigerant practices are
important to the environment, our customers, and the air
conditioning industry. All technicians who handle
refrigerants must be certified.The Federal Clean Air Act
(Section 608) sets forth the requirements for handling,
reclaiming, recovering and recycling of certain
refrigerants and the equipment that is used in these
service procedures. In addition, some states or
municipalities may have additional requirements that
must also be adhered to for responsible management of
refrigerants. Know the applicable laws and follow them.
WARNING
Personal Protective Equipment (PPE)
Required!
Failure to wear proper PPE for the job being undertaken
could result in death or serious injury. Technicians, in
order to protect themselves from potential electrical,
mechanical, and chemical hazards, MUST follow
precautions in this manual and on the tags, stickers,
and labels, as well as the instructions below:
•Before installing/servicing this unit, technicians
MUST put on all PPE required for the work being
undertaken (Examples; cut resistant gloves/sleeves,
butyl gloves, safety glasses, hard hat/bump cap, fall
protection, electrical PPE and arc flash clothing).
ALWAYS refer to appropriate Material Safety Data
Sheets (MSDS)/Safety Data Sheets (SDS) and OSHA
guidelines for proper PPE.
•When working with or around hazardous chemicals,
ALWAYS refer to the appropriate MSDS/SDS and
OSHA/GHS (Global Harmonized System of
Classification and Labelling of Chemicals) guidelines
for information on allowable personal exposure
levels, proper respiratory protection and handling
instructions.
•If there is a risk of energized electrical contact, arc, or
flash, technicians MUST put on all PPE in accordance
with OSHA, NFPA 70E, or other country-specific
requirements for arc flash protection, PRIOR to
servicing the unit. NEVER PERFORM ANY
SWITCHING, DISCONNECTING, OR VOLTAGE
TESTING WITHOUT PROPER ELECTRICAL PPE AND
ARC FLASH CLOTHING. ENSURE ELECTRICAL
METERS AND EQUIPMENT ARE PROPERLY RATED
FOR INTENDED VOLTAGE.
This document andthe information in it arethe property of
Trane, and may not be used or reproduced in whole or in
part without written permission.Trane reserves the right
to revise this publication at any time, and to make changes
to its content without obligation to notify any person of
such revision or change.
Trademarks
All trademarks referenced in this document are the
trademarks of their respective owners.
1 = Copper-Water Coil
2 = Cupro-Nickel Water Coil
7 = Insulated Copper-Water Coil
8 = Insulated Cupro-Nickel Water Coil
Digit 10 - Current Design
Sequence
Digit 11 - Refrigeration Circuit
0 = Heating and Cooling Circuit
2 = Heating and Cooling Circuit with
Hot Gas Reheat
3 = Heating and Cooling Circuit with
Waterside Economizer
4 = Heating and Cooling Circuit with HGR
and WSE
2
Digit 12 - Blower Configuration
1 = Standard Blower Motor
2 = High Static Blower Motor
A = Drive Package A
B = Drive Package B
C = Drive Package C
D = Drive Package D
E = Drive Package E
F = Drive Package F
G = Drive Package G
H = Drive Package H
J = Drive Package J
1*= 2 Speed Drive Package A
2*= 2 Speed Drive Package B
3 = 2 Speed Drive Package C
4= 2 Speed Drive Package D
5= 2 Speed Drive Package E
6= 2 Speed Drive Package F
7= 2 Speed Drive Package G
8= 2 Speed Drive Package H
9= 2 Speed Drive Package J
3
3
Digit 13 - Freeze Protection
A= 20°F Freezestat
B= 35°F Freezestat
4
Digit 14 - Open Digit = 0
Digit 15 - Supply-Air
Arrangement
B = Back Supply-Air Arrangement
F = Front Supply-Air Arrangement
L = Left Supply-Air Arrangement
R = Right Supply-Air Arrangement
T = Top Supply-Air Arrangement
Digit 16 - Return-Air
Arrangement
B = Back Return-Air Arrangement
F = Front Return-Air Arrangement
L = Left Return-Air Arrangement
R = Right Return-Air Arrangement
2
2
Digit 17 - Control Types
0 = Basic 24V Controls
D = Deluxe 24V Controls
B =Tracer® ZN524 Controls
F = UC400
G = UC400 w/Wireless Comm
00000000000 Digits 26-36 are not
applicable to the EXH or EXV products
6WSHP-SVX01Q-EN
Page 7
Overview of Manual
Note: One copy of this document ships with each unit and
is customer property. It must be retained by the
unit’s maintenance personnel.
This booklet describes proper installation, operation, and
maintenance procedures for HVAC systems. By carefully
reviewing the information within this manual and
following the instructions, the risk of improper operation
and/or component damage will be minimized.
Service and maintenance work should be performed by a
qualified technician and all electrical service and
maintenance work should be performed by a qualified
licensed electrician.
Unit Nameplate
The unit nameplate is located on the outside of the control
box access panel at thefront of the unit. Itincludes the unit
model number, serial number, electrical characteristics,
refrigerant charge, and other pertinent unit data.
Compressor Nameplate
The nameplate for the compressors are located on the
compressor shell.
Model Number Description
All products are identified by a multiple-character model
number that preciselyidentifies a particular type ofunit. Its
use will enable the owner/operator, installing contractors,
and service engineers to define the operation, specific
components, and other options for any specific unit.
When ordering replacement parts or requesting service,
be sure to refer to the specific model number and serial
number printed on the unit nameplate.
WSHP-SVX01Q-EN7
Page 8
General Information
Unit Description
Before shipment, each unit is leak tested, dehydrated,
charged with refrigerant and run tested for proper control
operation.
Air-to-Refrigerant Coil
The air-to-refrigerant coil is aluminum fin, mechanically
bonded to the copper tubing.
Water-to-Refrigerant Coil
The water-to-refrigerant coil is a copper or cupro-nickel
(option) and steel tube (tube-within-a-tube) design, leak
tested to assure there is no cross leakage between the
water tube (copper/cupro-nickel) and refrigerant gas (steel
tube).
Table 1.High/Low pressure switch
TripRecoverUnit
LP40 +/-456 +/-4psig
HP650 +/-10550 +/-10psig
Controls
Basic 24V control is available for the GEH/V .5 -5 ton
models and the Deluxe 24V control option is available for
all unit sizes.Tracer® ZN524, LonTalk® certified control
option is available for all unitsizes. UC400 and UC400 with
wireless comm BACnet® is available in all unit sizes.
All power wiring to the equipment is made at the unit
contactor for .5to 5 ton, 1-phase units. For 3-phaseunits all
power wiring to the equipmentis made tothe contactor or
power block. For EXH/V070 units all power wiring to the
equipment is made to the power block. For the GEH/V 6 to
25 tons units all power wiring is made to the high voltage
terminal block. All low-voltage wiring is made at the unit’s
low voltage terminal board. EXH and EXV 460V units
require a neutral wire.
System Input Devices and Functions
A thermostat, zone sensor, or building automation system
is required to operate the water-source heat pump.The
flexibility of having several mode capabilities depends
upon the type of sensor and/or remote panel selected.
Troubleshooting and connection diagrams for the 24V
control systems may be locatedin the back of this manual.
All digital control troubleshooting tips and connection
diagrams are located in CNT-SVX11*-EN (ZN524). All
digital control troubleshooting tips and connection
diagrams are located in BAS-SVX065*-EN (UC400).
Basic 24V Controls
Safety devices for equipment containing the basic 24V
control option include a low-pressure switch to prevent
compressor operation during low temperature or low
suction activity.The switch is set to activate at refrigerant
pressure of 40 psig to fit most applications.
A high pressure switch prevents compressor operation
during high or excessive discharge pressures exceeding
650 psig.
The lockout relay will disable the compressor on a high or
low pressure condition. For units that contain a
condensate overflow switch option, a condensate
overflow condition will also disable the compressor
through the lockout relay.The relay may be reset at the
thermostat, or by cycling power to the unit.
General alarm is accomplished through the lockout relay.
This feature will drive dry contacts only, and cannot be
used to drive field installed control inputs.Trane provides
a 3.5-minute time delay for compressor control.
Deluxe 24V Controls (option)
Units containing the Deluxe 24V control design will
incorporate a microprocessor-based control board.The
Trane® microprocessor board is factory wired to a
terminal strip to provide all necessary terminals for field
connection.The deluxe board is equipped with a random
start relay, anti-short cycle timer, brown out protection,
compressor disable, condensate overflow, unit safety
control, diagnostics, and a generic relay (which may be
available for field use). See Table 64, p. 113 for diagnostic
information and Figure 59, p. 62 and Figure 60, p. 63 for
thermostat connections.
Tracer® UC400 (option)
TheTracer® UC400 is a BTL Listed BACnet® controller that
can operate stand- alone or within aBuilding Automations
system such asTracer® SC. For installation, operation and
Programming, see BAS-SVX065*-EN (UC400).
Tracer® ZN524 Controls (option)
The digital ZN524 controller is designed to support the .5
to 25 ton water-source heat pumps in either a standalone,
or as a full building automation (open protocol) system.
For installation, operation and diagnostics see CNTSVX11A-EN (ZN524).
Pump Module (field installed accessory)
The pump module shall consist of either a single or dual 1/
6 HP bronze pump and a brass three-way shut-off valve.
Cast iron pumps are also available.The pump module kits
shall contain the necessary components for the
installation, operation and maintenance of the water
circuit of a closed-loop distributed pumping application.
8WSHP-SVX01Q-EN
Page 9
General Information
Waterside Economizer (Option)
Instructions for mechanical connection of the waterside
economizer to the water-source heat pump may be found
in the dimensional section of this manual.
The waterside economizer is designed to begin
economizing mode when water temperatures fall below
the field adjustable temperature of 25, 35, 45, 55 or 60°F
(for the Deluxe control option), or below the programmed
set-point (for the ZN524 or UC400 control option).
When the temperature is less than the setpoint, fluid will
flow into the economizing coil, while simultaneously
halting mechanical operation of the compressor.
Mechanical cooling will continue on a call for a second
stage from the thermostat or system control. Entering
water temperature sensor is factory provided for field
installation on the entering water side of the coil.
Boilerless Control/Electric Heat (Option)
Systems that do not contain a boiler may contain a
boilerless control with electric heat.Trane® offers both a
factory mounted electric heat option (.5 to 5 ton only), and
a field mounted duct heater option.
If the .5 to5 ton GEH, GEV andEXH/V070 unitincorporates
the factory mounted option, the unit will ship from the
factory with an internally mounted nichrome open wire
heating element, designed to start-up electric heat as the
systems primary heat in the event entering water
temperature falls below 55°F. Once the entering water
temperature rises above 60°F, the boilerless controller
returns the unit to normal compressor heating operation,
and locks out the electric heater.
For units comprised of the field installed duct heater
option, the unit will ship from the factory with controls
available to interface with the field provided electric heat
selection.
Note: For geothermal applications, the boilerless
controller has an adjustable setting of 25, 35, 45, 55,
and 60 degrees.
Supplemental or Boilerless Electric Heat
(option)
The GEH/V 6 to 25 ton models which contain boilerless
control electric heat or supplemental electric heat will
contain the controls interface ONLY for field provided
electric heat selection.The heater for this model shall be
external to the equipment by the contractor for ease of
installation. All power connections for the electric heater
will be completely separate from theunit for field supplied
electric heat.
Note: When the unit has boilerless control, the electric
heat is not used as supplemental electric heat, but
as a primary heat.
the reheat coil to control not only the space temperature,
but to also reduce therelative humidity of the space.When
operating in the reheat mode (meaning the sensible
temperature has been met in the space), the humidistat
signals the reheat relay coil to energize, allowing the high
pressure refrigerant gas to flow from the compressor
through the reheat valve, into the reversing valve and
reheat coil.
A switching relay has been provided for the reheat
application to adjust the blower motor from normal
operation to low speed when the hot gas reheat is
energized (for .5 to 5 ton and EXH/V070 equipment only).
Note: A high static blower motor is required to support
the hot gas reheat option for the GEH/V .5 -5 ton.
Note: Units containing the hot gas reheat option should
not be used as a make-up air unit.
2 Speed Blower Motor (option)
The 6 to25 ton GEH/Vmodels have indoorblowers that are
available with 2 speed motors, selectable in the model
number (Digit 12, drive packages one to nine). High speed
airflow matches the single speed motor airflow,
referenced in the Fan Performance tables. Low fan speed
airflow is approximately 50% of high fan speed airflow.
The 6 to 25 ton GEH/V two-speed blower motors are
available with the following options: Deluxe24V or UC400
controls, Heat Pump (HP) or HP w/Hot Gas Reheat or HP w/
Waterside Economizer. Not available with Boilerless or
Exposition to glass wool fibers without all necessary
PPE equipment could result in cancer, respiratory, skin
or eye irritation, which could result in death or serious
injury. Disturbing the insulation in this product during
installation, maintenance or repair will expose you to
airborne particles of glass wool fibers and ceramic
fibers known to the state of California to cause cancer
through inhalation.You MUST wear all necessary
Personal Protective Equipment (PPE) including gloves,
eye protection, a NIOSH approved dust/mist respirator,
long sleeves and pants when working with products
containing fiberglass wool.
Unit Inspection Checklist
•Unpack all components of the kit.
•Check carefully for any shipping damage. If any
damage is found it must be reported immediately and
a claim made against the transportation company.
Important: Equipment is shipped FOB (Free on Board)
at the manufacturer.Therefore, freight
claims for damages against the carrier must
be initiated by the receiver.
•Visually inspect the components for shipping damage
as soon as possible after delivery, before it is stored.
Concealed damage must be reported within 15 days.
•If concealed damage is discovered, stop unpacking the
shipment.
•Do not remove damaged material from the receiving
location.Take photos of the damage, if possible.The
owner must provide reasonable evidence that the
damage did not occur after delivery.
•Notify the carrier’s terminal of damage immediately by
phone and by mail. Request an immediate joint
inspection of the damage by the carrier and the
consignee.
•Do not attempt to repair any damaged parts until the
parts are inspected by the carrier’s representative.
Jobsite Inspection Checklist
Always perform the following checks before
accepting a unit:
•Verify that the nameplate data matches the data on the
sales order and bill of lading (including electrical data).
•Verify that the power supply complies with the unit
nameplate specifications.
•Visually inspect the exterior of the unit, for signs of
shipping damage. Do not sign the bill of lading
accepting the unit(s) until inspection has been
completed. Check for damage promptly after the
unit(s) are unloaded. Once the billof lading is signed at
the jobsite, the unit(s) are now the property of the
SOLDTO party and future freight claims MAY NOT be
accepted by the freight company.
Jobsite Storage
NOTICE:
Microbial Growth!
Wet interior unit insulation can become an
amplification site for microbial growth (mold), which
could result in odors and damage to the equipment and
building materials. If there is evidence of microbial
growth on the interior insulation, it should be removed
and replaced prior to operating the system.
NOTICE:
Microbial Growth!
Failure to follow instructions below could result in
odors and damage to the equipment and building
materials.The floor or foundation must be level and the
condensate drain at the proper height for proper coil
drainage and condensate flow. Standing water and wet
surfaces inside the equipment can become an
amplification site for microbial growth (mold).
This unit is intended for indoor use only.To protect the unit
from damage due to the elements, and to prevent possible
IAQ contaminant sources from growing, the unitshould be
stored indoors. If indoor storage is not possible, the
following provisions for outdoor storage must be met:
•Place the unit(s) on a dry surface or raise above the
ground to assure adequate air circulation beneath the
unit.
•Cover the unit(s) with a water proof tarp to protect
them from the elements.
•Make provisions for continuous venting of the covered
units to prevent moisture from standing on the unit(s)
surfaces. Wet interior unit insulation can become an
amplification site for microbial growth (mold) which
has been determined to be a cause of odors and
serious health related indoor air quality problems.
•Store units in the normal UP orientationto maintain oil
in the compressor.
•Horizontal units may be stacked no more than three
units high. Do not stack the vertical unit configurations.
12WSHP-SVX01Q-EN
Page 13
Unit Dimensions
Service Clearances
Per NEC requirements, 36 inches of access and working
space shall be provided and maintained around allcontrol
boxes and electrical equipment to permit ready and safe
operation and maintenance of such equipment. Local
codes may require more clearance to electrical
equipment. Check all code requirements prior to unit
installation.
Figure 1.Clearances - GEH .5 to 5 tons & EXH .5 to 6Tons
14"
14"
LEFT RETURN
BACK SUPPLY
UNIT FRONT
36"
14"
14"14”
LEFT RETURN
RIGHT SUPPLY
14"
UNIT FRONTUNIT FRONT
36"
14"14"
14"
14"
LEFT RETURN
LEFT SUPPLY
36"
14"
A minimum 14 inch clearancefor servicing the
unit is required for all .5 to 5 tons and EXH070
configurations from other mechanical and
electrical equipment (where shown) to enable
panel removal from the unit for service/
maintenance ability.The optimum clearance
required is 20 inches.
3"
Equipment containing a same-side supply/
return combination requires a 3 inches
limitation on one side. Access to theTXV may
not be possible with this 3 inches clearance.
This configuration is typically applied in a
corridor installation, where space limitations
force the left or right side of the unit against a
wall.
RIGHT RETURN
BACK SUPPLY
14"
UNIT FRONT
14"
36"
RIGHT RETURN
LEFT SUPPLY
14"
UNIT FRONT
36"
Figure 2.Clearance - GEH 6 to 15 Tons
24"
36"
CONTROL BOX
TOP VIE W
24"
14"
3"
BLOWER ACCESS
PANEL
RIGHT RETURN
RIGHT SUPPLY
UNIT FRONT
36"
14"
Service clearance dimensions for the GEH 6 to15 tons
horizontal includes a two side access appropriate for
control and blower motor/wheel access.
WSHP-SVX01Q-EN13
Page 14
Unit Dimensions
Figure 3.Clearance - GEV .5 to 5 tons & EXV .5 to 6Tons
1"
24"
1"
1"
UNIT FRONT
UNIT FRONT
36"
36"
24"
LEFT
RETURN
TOP/BACK
SUPPLY
TOP/BACK
1"
RIGHT
RETURN
SUPPLY
A 24 inch clearance from other mechanical and electrical
equipment (where shown) is recommended for all
configurations.This will enable panel removal from the
unit for service/maintenance.
A 1 inch minimum clearance between the filterrackand any
obstacle is required for units in a free return application to
provide proper air flow to the air-to-refrigerant coil. A 12
inch minimum clearance between the filter rack and any
obstacle should be provided to properly attached
ductwork.
The 1 inch dimension shown in the back of the unit
represents the supply duct collar for the back supply
option.This clearance is needed to clear these flanges.
Figure 4.Clearance - GEV 6 to 10Tons
24"
FRONT RETURN
TOP SUPPLY
ACCESS PANEL FOR
SHEAVES AND BELTS
36"
24"
Figure 5.Clearance - GEV 12.5 to 25 Tons
18"
24"
CONTROL BOX
36"
FRONT RETURN-AIR
BACK SUPPLY-AIR
UNIT FRONT
18"
A 24 inch clearance from other mechanical and electrical
equipment (where shown) is recommended for all
configurations.The unit may be serviced through the front
access panel or remaining open sides.
A 24 inch clearance from other mechanical and electrical
equipment (where shown) is recommended for all
configurations.The unit may be serviced through the front
access panel.
24"
14WSHP-SVX01Q-EN
Page 15
Figure 6.Left return/left supply (GEH/EXH)
TOP
F X G
OPENING
C
BLOWER
ACCESS
PANEL
1"
DRAIN
3/4" NPTI
BACKLEFT SIDEFRONT
H
Q
K
1/2"
H
J
RS
N
A
HI VOLT
WCI mounting location
LO VOLT
ED
6 3/4"
1"
Unit Dimensions
BP
REFRIG
AND
CONTROL
ACCESS
L (W.O.)
M (W.I.)
7"
1 3/8"
14"
RIGHT SIDE
Table 4.Dimensional data left return/left supply (GEH/EXH)
1. Equipment containing a same-side supply/return combination requires a 3 in. clearance on one side. Access to the TXV may not be possible with this
3 in. clearance.
(a)Return air opening dimension.
(b)Filter rack dimension.
Failure to properly lift unit could result in unit dropping
and possibly crushing operator/technician which could
result in death or serious injury, and equipment or
property-only damage. Test lift unit approximately 24
inches to verify proper center of gravity lift point.To
avoid dropping of unit, reposition lifting point if unit is
not level.
Approximate weight distribution for proper hangingof the
GEH and EXH unit is indicated by weight distribution in
Figure 45, p. 53.
Tolerance on the weights determined are ±15%.
Figure 45. Weight distribution GEH .5 to 5 tons; EXH .5
Failure to follow code could result in death or serious
injury. All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards.To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state electrical codes.
General Installation Checks
The checklist below is a summary of the steps required to
successfully install a commercial unit.This checklist is
intended to acquaint the installing personnel with what is
required in the installation process. It does not replace the
detailed instructions that are in the applicable sections of
this manual.
1. Remove packaging and inspect the unit. Check the unit
for shipping damage and material shortage; file a
freight claim and notify appropriate sales
representation.
The GEH/V .5 to 5ton and EXH/V .5 to 6 tonunits have been
anchored to the skid by (2) shipping bolts. The removal of
these bolts willrequire a 3/8 (9.7 mm) ratchet with a .5 (12.7
mm) socket.
The GEV 6 to 25 ton units have been anchored to the skid
with (4) angle brackets. Remove these brackets before
lifting unit into place.
The GEH 6 to 15 ton units are anchored to the cross brace
of the skid with (4) wood screws. Remove these screws
prior to lifting the unit into place.
2. Verify the correct model, options and voltage from the
unit nameplate.
3. Pull out all field attached parts (i.e. filter rack, duct
collar, filter and mounting screws) from the unit
packaging for field mounting.
4. Verify the installation location of the unit will provide
the required clearance for proper operation.
5. Remove refrigeration access panel and inspect the
unit. Be certain the refrigerant tubing has clearance
from adjacent parts.
6. Fabricate and install duct work
7. Install and connect a condensate drain line and trap to
the drain connection.
Main Electrical
WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury. Disconnect all electric
power, including remote disconnects before servicing.
Follow proper lockout/tagout procedures to ensure the
power can not be inadvertently energized.
1. Verify the power supply complies with the unit
nameplate specifications.
2. Inspect all control panel components; tighten any
loose connections.
3. Connect properly sized and protected power supply
wiring to a field-supplied/installed disconnect switch
and to the main compressor contactor/power block
1K1 (compressor contactor on the .5 to 5 ton) for GEH/
V .5 to 5 tonand EXH/V .5 to 6 ton unitsor 1TB1 for GEH/
V 6 to 25 ton equipment in the unit control panel.
4. Install proper grounding wires to anearth ground. EXH
and EXV 460 V units require a neutral (a four wire
system).
Note: All field-installed wiring must comply with NEC
and applicable local codes.
Electric Heat Requirements
5. Verify that the power supply complies with the electric
heater specifications on the unit and heater nameplate.
6. Inspect the heater junction box and control panel;
tighten any loose connections.
7. Check electric heat circuits for continuity.
Low Voltage Wiring Requirements
8. Install the zone sensor or thermostat.
9. Connect properly sized control wiring to the proper
termination points between the zone sensor or
thermostat and the unit control panel.
Filter Installation
Each unit ships with 1" or 2" throwaway filters. 2" MERV 8
or 2" MERV 13 filters are also available options.The
quantity of filters is determined by unit size.The GEH .5 to
5 ton and EXH units require field installation of the 1" or 2"
ducted filters rack. All sheet metal bracket, filter and
hardware are in a box located onthe side ofthe unit within
the unit packaging. All .5 to 25 ton verticals and GEH 6 to
15 ton horizontal units ship with the filter rack and filters
factory installed.
Note: Do not operate the unit without filters.
54WSHP-SVX01Q-EN
Page 55
Installation
Supply-Air Ductwork
Horizontal .5 to 5 ton and EXHF units require duct flanges
to be field installed.The duct flange ships in a box on the
side of the unit. Install the flange with (8) 3/8 in. factory
supplied screws.
Install the 1 in. supply-air duct flange to the vertical and
horizontal equipment with the (8) 5/16 in. factory-supplied
screws.The duct collar assembly for each unit is shipped
with the unit in the same box where the IOM manual is
located.
When attaching the field ductwork to the unit, provide a
watertight flexible connector at the unit to prevent
operating sounds from transmitting through the
ductwork. See Figure 47, p. 55.
Elbows with turning vanes or splitters are recommended
to minimize air noise dueto turbulence and to reducestatic
pressure.
The return-air arrangement may be easily converted from
a free return-air system, to a ducted return-air systemwith
the addition of a return-air side panel. By replacing the
filter racks with the return-air panel, a complete seal from
the duct to the unit is possible.The 1.5 duct flange
facilitates ease of field connection to the duct system.This
accessory is typically used when the return-air filter is
placed in a built-in ceiling grille, or placed within a field
provided filter rack assembly.
Figure 49. Return-air duct panel
Return-Air Ductwork
Install the 1”-2” adjustable filter rack to the horizontal
equipment with the use of (4) 5/16 in. factory supplied
screws.The vertical equipment factoryships with the filter
rack and filter(s) installed.
When attaching the field ductwork to the unit, provide a
water-tight flexible connector at the unit to prevent
operating sounds from transmitting through the
ductwork.
Elbows with turning vanes or splitters are recommended
to minimize air noise dueto turbulence and to reducestatic
pressure.
Dual Filtration (GEH .5 to 5 ton and EXH .5
to6ton)
Note: The dual-filtration design is typically used in a free-
return application.
The horizontal, GEH and EXH model, allows the installer
flexibility in design applications such as a dual filtration
option.With the dual filtration design, the unit will contain
a lower static which translates into a decrease in filter
maintenance. For installation of a dual filtration accessory
for the GEH and EXH model, verify that an extra set of
return-air filter racks and filter have been ordered from the
factory.This accessory will be shipped separate from the
unit, and should be located in a separate box than the unit.
1. Remove the return-air side panel from the GEH and
EXH unit.This panel is held in place by screws.
When it is necessary
to have filter access at
the unit in a ducted
return, a ducted filter
rack is available.This
option allows access
to the filter at the unit.
Vertical unit filter
racks are available in
right or left access
configurations.
Horizontal units are
available in top,
bottom or side access
configurations.
2. Install the top/bottom filter rack at the new opening.
The adjustable filter rack is held in place with four
screws that once held the panel.
56WSHP-SVX01Q-EN
Page 57
Installation
Figure 52. Install top/bottom filter rack
3. Install the 1”or 2” filter.
Figure 53. Install filter
unit. All plumbing to the unit should conform per
national and local codes and isthe responsibility of the
contractor.
Figure 54. Hanging the unit
3/8" ALL-THREAD
(BY OTHERS)
3/8" WASHER / NUT
(BY OTHERS)
RETURN-AIR
SUPPLY-AIR
Condensate Drain Connection
Figure 55. Negative pressure system
Sound Attenuation Pad
For sound-sensitive installations, a vibration pad (field
provided) should be placed beneath the horizontal or
vertical equipment. For the horizontal unit, the pad should
be approximately twice the size of the unit foot print. For
the vertical unit, the pad shouldbe .5 in. thick, and equal to
the overall unit foot print.
Hanging the Horizontal Unit
WARNING
Risk of Unit Dropping!
Failure to follow instruction below could result in death
or serious injury.To prevent modules/subassemblies
from dropping, ALWAYS place, assemble, and suspend
them one at a time.
To hang the horizontal configuration (see Figure 54, p. 57):
1. Install the hanging isolators (located in the return-air
section of the unit) into the four hanging brackets.
2. Secure the equipment to a joist, concrete, etc. with the
use of 3/8 in. field provided (all-thread) rod. Each
corner should contain field provided nuts and washers
to complete the hanging installation.
3. Slope horizontal units in two directions.The unit
should contain a dual .25-12 pitch toward the drain
connection.This will insure proper drainage of the
Install proper trapping to the equipment.The unit drain
connection is .75 in. NPT for all GEV .5 to 25 ton and GEH
.5 to 5 ton and EXH/V .5to 6 ton models. For 6 to15ton GEH
models, the drain connection is .5 in. PVC schedule 40
pipe.
When designing the condensate trap for the water-source
system, it is important to consider the unit draw-thru
design requiring negative pressure trapping.
In a properly trapped system, when condensate forms
during normal operation, the water level in the trap rises
until there is a constant flow. It is imperative to maintain
water in the trap and not allow the trap to dry out during
heating season. Keeping trap primed at all times will
enable the water to flow properly. See Figure 55, p. 57 for
appropriate dimensions required in a negative pressure
system.
WSHP-SVX01Q-EN57
Page 58
Installation
Supply/Return Pipe Connections
Figure 56. Supply/return pipe connections
Field Installed Power Wiring
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury. All field wiring MUST be performed by qualified
WATER-OUT
WATER-IN
AUTOMATIC BALANCING
HOSE KIT
RETURN
TO
LOOP
SUPPLY
FROM
CENTRAL
PUMP
Connect the supply and return hoses to the water-inlet
(from supply) and water-outlet (to return) of the unit. For
vibration isolation, it is recommended that flexible steel
braided hoses be installed instead of hard piping the
equipment to the main loop system.
Cleaning and Flushing the Water Loop
After the piping system is complete, the flexible hose
connectors should be doubled back to complete the water
circuit external to the unit (avoiding trash settle-out in the
condenser). An extra pipe may be necessary to connect
the hose kits.
1. Water circulation system should be filled with clean
water using the water make up connections.
Note: Air vents should be open during filling.
2. With the air vents closed, start the circulating pump
and then crack the air vents to bleed off the trapped air,
assuring circulation through all components of the
system.
Note: Make up water must be available to the system to
replace the volume formerly occupied by the air
that is bled off.
3. With the air vented and the watercirculating, the entire
system should be checked for leaks with repairs made
as required.
4. Operate the supplementary heat system (boiler)
making checksper manufacturer’sinstructions. During
this operation, visual checks should be made for leaks
that may have occurred due to increased heat. Repair
as required.
5. Open the system at the lowest point for the initial blow
down (making sure the make up water is equal to the
water being dumped). Continue blow down until the
water leaving the drain runs clear, but not less than 2
hours.
6. Shut down pumps and supplementary heat system.
Reconnect the hoses placing the water-to-refrigerant
heat exchanger in the water circulating system.
Note: Vents should be open when the pumps and
supplementary heat system are shut down.
58WSHP-SVX01Q-EN
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards.To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state electrical codes.
Verify that the power supply available is compatible with
the unit’s nameplate. Use only copper conductors to
connect the power supply to the unit.
Main Unit Power Wiring
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury. All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards.To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state electrical codes.
A field supplied disconnect switch must be installed at or
near the unit in accordance withthe National Electric Code
(NEC latest edition).
Location of the applicable electric service entrance for
HIGH (line voltage) may be found in the Dimensions
section of this manual.
The high-voltage connection is made at the 1K1 contactor
or 1TB1 power block inside the unit control box. See
Figure 57, p. 58. Refer to thecustomer connection diagram
that is shipped with the unit for specific termination points.
Provide proper grounding for the unit in accordance with
the local and national codes.
Figure 57.Power wiring example
Page 59
Control PowerTransformer
The 24 V control power transformers are to be used only
with the accessories called out in this manual. A 50 VA
transformer is externally fused.Transformers rated
greater than 50 VA are equipped with circuit breakers. If a
circuit breaker trips, turn OFF all power to the unit before
attempting to reset it.
WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury. Disconnect all electric
power, including remote disconnects before servicing.
Follow proper lockout/tagout procedures to ensure the
power can not be inadvertently energized.
The transformer is located in the control panel.
Thermostat Location
Figure 58. Thermostat/sensor location
NO
YES
NO
5 Feet
NO
Installation
NOTICE
Component Failure!
Resistance in excess of 3 Ohms per conductor could
result in component failure due to insufficient AC
voltage supply.
Check all loads and conductors for grounds, shorts, and
mis-wiring. Use copper conductors unless otherwise
specified. Do not run the AC low-voltage wiring in the
same conduit with the high voltage power wiring.
Table 40. 24V AC conductors
Distance from unit to
controlRecommended wire size
000-460 ft18 gauge
461-732 ft16 gauge
733-1000 ft14 gauge
Figure 59. Low-voltage connection (GEH/V .5 to 5 ton
Location of the thermostat or zone sensor is an important
element of effective room control.
Areas where the thermostat or zone sensor should not be
located include:
•Behind doors or corners
•Near hot or cold air ducts
•Near radiant heat (heat emitted from appliances or the
sun)
•Near concealed pipes or chimneys
•On outside walls or other non conditioned surfaces
In air-flows from adjacent zones or other units.
Controls Using 24 VAC
Before installing any wire, refer to the electrical access
locations in the “Unit Dimensions,” p. 13 of this manual.
Ensure that the AC control wiring between the controls
and the unit termination point does not exceed 3 Ohms/
conductor for the length of the run.
Deluxe Controls with Reheat
1TB1
1
24 VAC
2
FAN
3
REVERSING VALVE (COOL)
4
COMPRESSOR
5
24 VAC COMMON & VAR SPD PUMP SOLENOID
6
7
8
24 VAC COMPRESSOR DISABLE INPUT
9
24 VAC COMPRESSOR DISABLE INPUT
10
HUMIDISTAT
11
VAR SPD PUMP SOLENOID
12
13
14
15
ALARM CONTACT OUTPUT
16
ALARM CONTACT OUTPUT
17
18
(a)Basic controls not available on EXH/V units
Low-voltage connection diagrams for basic and deluxe 24
V control packages mounted on .5-6 ton equipment sizes
are shown in Figure 59, p. 59.
WSHP-SVX01Q-EN59
Page 60
Installation
Figure 60. Low-voltage connection (GEH/V 6 to 25 ton)
Deluxe Controls with
-all Heat Pump Units w/ Reheat
using X13511090010 (T8511)
1TB2
24 VAC (R)
1
FAN (G)
2
COMPRESSOR 1 (Y1)
3
COMPRESSOR 2 (Y2)
4
REVERSING VALVE (0) & HUMIDISTAT
5
24 VAC COMMON (C) & WATER ISOLATION VA
6
COMPRESSOR DISABLE
7
COMPRESSOR DISABLE
8
ALARM
9
ALARM
10
ELECTRIC HEAT
11
ELECTRIC HEAT
12
HUMIDISTAT
13
WATER ISOLATION VALVE
14
3RD STAGE HEAT (W3)
15
NOT USED
16
Deluxe Controls with
-all Heat Pump Units without Reheat
using X13511090010 (T8511)
1TB2
24 VAC (R)
1
FAN (G)
2
COMPRESSOR 1 (Y1) & WATER ISOLATION VA
3
COMPRESSOR 2 (Y2)
4
REVERSING VALVE (0) & HUMIDISTAT
5
24 VAC COMMON (C) & WATER ISOLATION VA
6
COMPRESSOR DISABLE
7
COMPRESSOR DISABLE
8
ALARM
9
ALARM
10
ELECTRIC HEAT
11
ELECTRIC HEAT
12
HUMIDISTAT
13
NOT USED
14
3RD STAGE HEAT (W3)
15
NOT USED
16
Deluxe Controls with
-all Heat Pump Units w/ Reheat
using X13511091010/X13511092010 (T7300)
1TB2
24 VAC (R)
1
FAN (G)
2
COMPRESSOR 1 (Y1)
3
COMPRESSOR 2 (Y2)
4
REVERSING VALVE (0) & HUMIDISTAT
5
24 VAC COMMON (X) & WATER ISOLATION VA
6
COMPRESSOR DISABLE
7
COMPRESSOR DISABLE
8
ALARM
9
ALARM
10
ELECTRIC HEAT
11
ELECTRIC HEAT
12
HUMIDISTAT
13
WATER ISOLATION VALVE
14
3RD STAGE HEAT (W1)
15
NOT USED
16
Deluxe Controls with
-all Heat Pump Units without Reheat
using X13511091010/X13511092010 (T7300)
1TB2
24 VAC (R)
1
FAN (G)
2
COMPRESSOR 1 (Y1) & WATER ISOLATION VA
3
COMPRESSOR 2 (Y2)
4
REVERSING VALVE (0) & HUMIDISTAT
5
24 VAC COMMON (X) & WATER ISOLATION VA
6
COMPRESSOR DISABLE
7
COMPRESSOR DISABLE
8
ALARM
9
ALARM
10
ELECTRIC HEAT
11
ELECTRIC HEAT
12
HUMIDISTAT
13
NOT USED
14
3RD STAGE HEAT (W1)
15
NOT USED
16
Low-voltage connection diagrams for deluxe 24V control
packages for these thermostats mounted on 6-25 ton
equipment sizes are shown in Figure 60, p. 60.
For controls using DC analog input/outputs, see
appropriate installation, operation and diagnostic
manuals for connection, CNT-SVX11*-EN (ZN524). For
installation, operation and Programming see BASSVX065*-EN (UC400).
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury. All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards.To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state electrical codes.
1. Remove service access panel at the unit front.
Figure 61. Service access panel
2. Find the blower motor relay.The relay is located in
Figure 62, p. 60.The relay location is consistent in all
control configurations.
Figure 62. Relay location
Blower Motor Speed-Tap Retrofit
Note: For GEH/V .5 to 5 ton units only.
Motors installed in the unit include 4-speed or 3-speed
configurations. All voltages include a 4-speed
configuration, with the exception of 380V, 415V, 460V
which contain a 3-speed arrangement and 575V which
contains a 2-speed arrangement.To modify the rpm of the
motor, the following steps must be followed.
WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury. Disconnect all electric
power, including remote disconnects before servicing.
Follow proper lockout/tagout procedures to ensure the
power can not be inadvertently energized.
60WSHP-SVX01Q-EN
Removing Speed-tap Wire
3. For units w/o Hot Gas Reheat: Remove undesired
speed-tap wire from 1K4 relay at spade 3. Wire tie the
lead, to eliminate a short.
4. For units with Hot Gas Reheat: Remove undesired
speed-tap wire from 1K8 relay at spade 6. Wire tie the
lead, to eliminatea short. Hot Gas Reheat requires both
speed taps to be adjusted toenable reheat as the lower
speed tap.
Page 61
Installation
Figure 63. Wiring change
Connecting Desired Speed-tap Wire
5. For units without hot gas reheat, select desired speedtap wire. Connect desired speed tap wire to 1K4 relay
at spade 3.
6. For units with hot gas reheat, select desired speed-tap
wire. Connect desired speed tap wire to 1K8 relay at
spade 6.
Figure 64. Connecting speed-tap wire
Hole Plug Installation
Figure 65. Hole plug installation
1. Locate two Hayco plastic plugs enclosed with the
Installation, Operation, and Maintenance manual.
2. Use these plugs to plug the two shipping bolt holes in
the bottom of the GEV*/EXV* units after shipping bolt
removal.
Air Flow Adjustment
Note: GEH/V 6 to 25 ton units only.
To increase cfm, loosen the turns open set screw on the
sheave, and turn the sheave clockwise.To decrease cfm,
Loosen the turns open set screw on the sheave, and turn
the sheave counterclockwise.
To increase belt tension, loosen the adjustment bolt and
pull motor mounting plate back until the belt is tight.
Tighten the adjustment bolt after the belt has reached the
desired tension.
See Figure 66, p. 62 for fan motor and sheave adjustment
7. Install service front panel. Reconnectpower to the unit.
Rotating Components!
WARNING
Table 41. 4-speed motor (115, 208, 230, 265)
Lead Colors
Lead BlackBlueOrange Red
SpeedHighMedium HighMedium LowLow
Table 42. 3-speed motor (380, 415, 460)
Lead Colors
Lead BlackBlue Orange
SpeedHighMedium Low
Note: When using the medium or low speed tap, the purple wire must be
jumpered to the high speed tap (blk).
Table 43. 2-speed motor (575)
Lead Colors
Lead BlackBlue
SpeedHighLow
WSHP-SVX01Q-EN61
Failure to disconnect power before servicing could
result in rotating components cutting and slashing
technician which could result in death or serious injury.
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized.
Page 62
Installation
Figure 66. Fan motor and sheave adjustment
1.Belt
2.Adjustment Bolt and
Plate
3.Sheave
1
2
3
Figure 67.ECM control board and dip switch setting
Dip switch to
select profile
disconnected when the DIP switch is set,the motor will not
be programmed to the new setting.
Profile A = 110% of rated airflow
ProfileB=100%ofrated airflow
Profile C = 90% of rated airflow
Profile D = 80% of rated airflow
Waterside Economizer Installation
Note: GEH .5 to 5 and EXH .5 to 6 ton units.
WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury. Disconnect all electric
power, including remote disconnects before servicing.
Follow proper lockout/tagout procedures to ensure the
power can not be inadvertently energized.
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury. All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards.To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state electrical codes.
Note: EXH/V .5 to 6 ton high efficiency units only: Units
are shipped from the factory on profile setting B.
To adjust the cfm, disconnect the powerto the unit. Set the
DIP switch located in the control box to the desired profile
setting. Connect the power to the unit. If the power is not
The following steps were sequenced to aid in the
installation and mating of a water side economizer to a
water-source heat pump (GEH .5 to 5 ton) and (EXH 1.5 to
6 ton).
1. Remove the control side service panel of the watersource heat pump unit.
2. Removerubber isolation grommets from the return-air
section. Place them in a convenient location.
3. Attach ducted panel to the water-source heat pump
unit with six factory provided screws.This panel is
shipped loose with the water-source heat pump but
must be field installed to the unit.
Figure 68. Step 3
62WSHP-SVX01Q-EN
Page 63
Installation
4. Attach the water side economizing unit to the ducted
panel of the water-source heat pump with 10-factory
provided screws.The economizing package fits to the
outside of the of the water-source heat pump.Trane
recommends the mating of the systems be made via 3screws spaced evenly across the top, 3-screws spaced
evenly across the bottom (installed immediately after
hanging the unit), and 2-screws on each side.
Note: Waterside economizer option is configured for
right return. Left return requires additional field
piping.
Figure 69. Step 4
5. Install the 18-inch steel braided hose between the
upper most piping connection of the economizer, and
the water-in of the heat pump.The hose is shipped
loose with the water-side economizer.
Figure 71. Step 6
7. Verify the control board for the water side economizer
is located at the back of the control box.The
temperature rating of this board is factory set to 55ºF.
For units with boilerless (electric heat) control and
water side economizer, the boilerless control board is
factory set to 45ºF.
Figure 72. Step 7
Figure 70. Step 5
6. Install the SUPPLY and RETURN hoses to the:
a. 2-position valve’s threaded connection
b. water-out threaded connection of the water-source
heat pump
8. Thread the bulb and wire through the low voltage hole
of the water-source heat pump. See Figure 73, p. 63.
Figure 73. Step 8
WSHP-SVX01Q-EN63
Page 64
Installation
9. Wire-tie the sensor to the water SUPPLY side of the
piping (ON, or BEFORE) the 2-position valve. See
Figure 74, p. 64.
Figure 74. Step 9
10. Bundle excess sensor wire, and wire tie the bundle
neatly. See Figure 75, p. 64.
Figure 75. Step 10
WHT = 1TB1-15
See Figure 77, p. 64.
Figure 77.Step 12
13. Bundle excess valve wire, and wire tie the bundle
neatly. See Figure 78, p. 64.
Figure 78. Step 13
11. Thread the valve’s wire lead through the low voltage
hole of the heat pump. See Figure 76, p. 64.
Figure 76. Step 11
12. Wire the valve to the terminal strip according to the
unit wire diagram located on the service control panel.
RED = 1TB1-14
BLK = 1TB1-18
64WSHP-SVX01Q-EN
14. Install control side service panel.
15. Install the hanging isolation grommets (see Figure 79,
p. 64) into the hanging bracketsThe unit isolators were
located in the return-air section of the unit. See Step 2.
Isolators for the economizing package are located with
the economizer.
Note: GEH .5-5 ton and EXH .5-6 ton.
Figure 79. Step 15
Page 65
Installation
16. Insulate the economizing piping package and the
supply/return/by-pass hoses (3-hoses) via field
provided pipe insulation. Insulatingthe piping will stop
condensation from forming on the pipe and dripping
onto the ceiling tiles.
Note: Trane does not provide insulation on the
economizing piping package.This insulation must
be field provided and field installed.
Note: Trane does not provide condensate overflow
protection of the waterside economizer.This must
be field provided and installed.
17. Install filter rack (top and bottom) to the economizing
package.The filter rack is located in the unit’s
packaging along with the filter.
18. Hang unit. See Figure 54, p. 57 for hanging of the
packaged unit. Bottom screws referenced in Step 4
must be installed at this time.
19. Field pipe the drain lines of the waterside economizer
and water-source heat pump together prior to
installing a condensate trap (see Figure 80, p. 65.See
Figure 55, p. 57 for proper trapping of condensation.
Figure 80. Step 19
Table 44. Economizer part numbers
GEH Unit 60 HzGEH Unit 50 HzWaterside Economizer Part
Failure to disconnect power before servicing could
result in death or serious injury. Disconnect all electric
power, including remote disconnects before servicing.
Follow proper lockout/tagout procedures to ensure the
power can not be inadvertently energized.
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury. All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards.To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state electrical codes.
1. Remove the filter frame from the unit.
2. Remove the waterside service panel from the unit.
3. Remove the control box service panel from the unit.
4. Remove the economizer and miscellaneous mounting
parts from it’s packaging.
5. GEV ONLY: Mount the economizer support angle (4475
1637 0100) found in the economizer packaging in the
same holes of the return air filter frame removed in
Step 1.The support angle screws into the unit roof.
6. GEV ONLY: Hang the economizer assembly from the
economizer support angle mounted in Step 5.
7. Secure the economizer to theunit using thefour plates
(4475 1630 0100) found in the economizer packaging.
Two plates should be applied to each economizer side.
GEV ONLY: Secure the bracket on the bottom of the
economizer cabinet to the unit compressor
compartment center post.
8. Install the field portion of the water piping and the 3way valve together.
9. Verify the control board for the waterside economizer
is located at the back of the control box.The
temperature rating of this board is factory set to 55ºF.
10.Thread the economizer’s entering water temperature
sensor (4RT1) through the water-in line of the watersource heat pump upstream from the valve.This
sensor is used by the economizer’s 3-way valve to
determine if water flow should be directedthrough the
waterside economizing coil.
11. Tie wrap the thermistor to the water line (supply side)
upstream of the water pipe to the economizer.The
thermistor must be situated so that the thermistor is
WSHP-SVX01Q-EN65
Page 66
Installation
capable of reading the actual entering water
temperature regardless of the economizer’s on or off
situation.
12. Insulate the thermistor with tubing insulation.
13.Tie wrap each end of the tubing insulation to prevent
air filtration.The tie wraps and insulation arelocated in
a bag and shipped inside of the unit.
14.Thread the factory wire harness through the low
voltage hole of the heatpump to the 3-way valve’s wire
harness.
15. Connect the factory installed wire harness to the to the
wire harness supplied with the 3-way valve (see
Table 45, p. 66).
Table 45. Actuator/factory harness wire table
Actuator Wire # ColorFactory Harness Wire # Color
1 BLK=25L-Black
2 WHT=23T-White
3 WHT=73A-White
16. Bundle excess valve wire, and wire tie the bundle
neatly.
17. Install control side service panel to the heat pump.
18. Install the unit filter frame to the economizing inlet.
19. Insulate the economizing piping package with field
supplied pipe insulation.Insulating the pipingwill help
stop condensation from forming on the pipe.
Notes:
• Trane does not provide insulation on the economizing
piping package.This insulation must be field provided
and field installed.
• Trane does not provide condensate overflow
protection of the waterside economizer.This must be
field provided and field installed.
20. Install waterside service panel to the heat pump.
21. The economizer condensate linemust be trapped prior
to the unit’s drain line.This helps prevent air from
being sucked through the drain line causing
condensate to spit or build-upin the economizer or unit
drain pans. Field pipe the drain lines of the waterside
economizer and water-source heat pump together
prior to installing a condensate trap. See page
“Condensate Drain Connection,” p. 57 for proper
trapping of condensation.
66WSHP-SVX01Q-EN
Page 67
Waterside Economizer Start-Up Sequence
1. Set the thermostat to the highest position.
2. Set the thermostat system switch to COOL with the fan
control to AUTO.The compressor should NOT run.
3. Reduce the thermostat setting until the compressor,
reversing valve, solenoid valve, and loop pump are
energized. Adjust water flow utilizing pressure/
temperature plugs and comparing to tables contained
in specification sheet data. Water leaving the heat
exchanger should be warmer than the entering water
temperature (approximately 9-12ºF); blower operation
should be smooth; compressor and blower amps
should be within data plate ratings; the suction line
should be coolwith no frost observedin the refrigerant
circuit.
4. Check the cooling refrigerant pressures against values
in Table 53, p. 88.
Note: If cooling mode is activated, and the entering water
temperature of the heat pump falls below 55ºF, the
2-position, water side economizing valve will
become energized (open) and compressor
operation will halt allowing for free cooling in the
space.
5. Turn the thermostat system switch to the OFF position.
Unit should stop running and the reversing valve
should de-energize.
6. Leave unit off for approximately FIVE minutes to allow
for pressure equalization.
7. Turn the thermostat to the lowest setting.
8. Set the thermostat system switch to the HEAT position.
9. Adjust the temperature setting upward until the unit is
energized. Warm air should blow from the register. A
water temperature decrease of approximately 5-9°F
leaving the heat exchanger should be noted.The
blower and compressor operation should be smooth
with no frost observed in the refrigeration circuit.
10. Check the heating refrigerant pressures against values
in Table 53, p. 88.
Note: For units with boilerless electric heat option: In
heating mode, if the entering watertemperature of
the heat pump falls below 45ºF, the electric heater
will be energized, and compressor operation will
halt. Once the entering water temperature rises
above 50ºF, the boilerless controls returns the unit
to normal operation.
11. Set the thermostat to maintain the desired space
temperature.
Note: The valve body is constructed from forged brass with nickel plating, with the ball and stem constructed of stainless steel. For other information
pertaining to the economizing water valve, see the valve’s data plate.
GEV
6 Ton
GEV/GEH
7.5-12.5 Ton
GEV
15 & 20 Ton
Size
1-1/4 FPT600 psi200 psi
1.5 FPT600 psi200 psi
2 FPT600 psi200 psi
Valve Conn.
Valve Pres.
Rating
"Valve Close-
off pressure
Valve Temp.
RangeActuator
Non-spring return type
"0ºF to 212ºF
-18ºC to 121ºC
"0ºF to 212ºF
-18ºC to 121ºC
"0ºF to 212ºF
-18ºC to 121ºC
0ºF to 212ºF
-18ºC to 121ºC
0ºF to 212ºF
-18ºC to 121ºC
0ºF to 212ºF
-18ºC to 121ºC
0ºF to 212ºF
-18ºC to 121ºC
0°F to 212°F
-18°C to 121°C
0°F to 212°F
-18°C to 121°C
24 VAC +/- 20%
135 second stroke time
10 Cv at full port
Non-spring return type
24 VAC +/- 20%
135 second stroke time
30 Cv at full port
Non-spring return type
24 VAC +/- 20%
135 second stroke time
23 Cv at full port
Non-spring return type
24 VAC +/- 20%
135 second stroke time
33 Cv at full port
Non-spring return type
24 VAC +/- 20%
135 second stroke time
37 Cv at full port
Non-spring return type
24 VAC +/- 20%
135 second stroke time
57 Cv at full port
Non-spring return type
24 VAC +/- 20%
135 second stroke time
10 Cv at full port
Non-spring return type
24 VAC +/- 20%
135 second stroke time
30 Cv at full port
Non-spring return type
24 VAC +/- 20%
135 second stroke time
23 Cv at full port
68WSHP-SVX01Q-EN
Page 69
Electrical Data
Table 47.Electrical data standard static motors (.5 to 25 tons), single speed blower motor (6 to 25 tons)
Before energizing the unit, the following system devices
must be checked:
•Is the high voltage power supply correct and in
accordance with the nameplate ratings?
•Is phasing of the unit correct per compressor rotation
(scroll compressor only)?
•Is the field wiring and circuit protection the correct
size?
•Is the low voltage control circuit wiring correct per the
unit wiring diagram?
•Is the piping system clean/complete and correct? (A
recommendation of all system flushing of debris from
the water-to-refrigerant heat exchanger, along with air
purging from the water-to-refrigerant heat exchanger
be done in accordance with the Closed-Loop/Ground
Source Heat Pump Systems Installation Guide).
•Is vibration isolation provided? (i.e. unit isolation pad,
hose kits)
•Is unit serviceable? (See clearance specifications in
“Unit Dimensions,” p. 13).
•Are the low/high-side pressure temperature caps
secure and in place?
•Are all the unit access panels secure and in place?
•Is the thermostat in the OFF position?
•Is the water flow established and circulating through
all the units?
•Is the duct work correctly sized, run, taped, insulated
and weather proofed with proper unit arrangement?
•Is the condensate line properly sized, run, trapped,
pitched and primed?
•Is the zone sensor correctly wired and in a good
location?
•Does the indoor blower turn freely without rubbing?
•Has all work been done in accordance with applicable
local and national codes?
Has heat transfer fluid been added in the proper mix to
prevent freezing in closed system application?
86WSHP-SVX01Q-EN
Page 87
Start-Up
Initial Unit Start-up
Note: Start-up with the heat pump thermostat is included
below:
1. Set the thermostat to the highest position.
2. Set the thermostat system switch to COOL with the fan
control to AUTO.The compressor should NOT run.
3. Reduce the thermostat setting until the compressor,
reversing valve, solenoid valve, and loop pump are
energized. Adjust water flow utilizing pressure/
temperature plugs and comparing to tables contained
in specification sheet data.
Water leaving the heat exchanger should be warmer
than the entering water temperature (approximately 912ºF); blower operation should be smooth;
compressor and blower amps should be within data
plate ratings; the suction line should be cool with no
frost observed in the refrigerant circuit.
4. Check the cooling refrigerant pressures against values
in Table 53, p. 88.
5. Turn the thermostat system switch to the OFF position.
Unit should stop running and the reversing valve
should de-energize.
6. Leave unit off for approximately FIVE minutes to allow
for pressure equalization.
7. Turn the thermostat to the lowest setting.
8. Set the thermostat system switch to the HEAT position.
9. Adjust the temperature setting upward until the unit is
energized. Warm air should blow from the register. A
water temperature decrease of approximately 5-9ºF
leaving the heat exchanger should be noted.The
blower and compressor operation should be smooth
with no frost observed in the refrigeration circuit.
10. Check the heating refrigerant pressures against values
in Table 53, p. 88.
11. Set the thermostat to maintain the desired space
temperature.
12. Instruct the owner on system operation.
Table 52. Checklist
MODEHeatCool
Pressure Differential
COMPRESSOR
Amps
Volts
Discharge line temperature (after 10
minutes)
_________PSIG_________PSI
G
_______F_______F
Start-Up Checklist and Log
Installing Contractor: Use this checklist to thoroughly
check-out the system and units before and during start-up.
(This form need not be returned to the factory unless
requested during technical service support).
Job Name:________________________
Model Number:____________________
Date:______________________________
Serial Number:_____________________
In order to minimize troubleshooting and costly system
failures, complete the following checks and data entries
before the system is put into full operation.
Operating Pressures
There are many variables (airflow, air temperatures) in an
air conditioning system that will affect operating
refrigerant pressures and temperatures.The charts below
shows approximate conditions and is based on air flow at
the rated SCFM, entering air at 80.6°F(DB), 66.2°F(WB) in
cooling, 68°F(DB) in heating. (+)Heating data with 35°F
EWT is based on the use of an anti-freeze solution having
a freezing point 20°F lower than the minimum expected
entering temperature.
Table 52. Checklist
MODEHeatCool
Entering fluid temperature_______F_______F
Leaving fluid temperature_______F_______F
Temperature differential_______F_______F
Return-air temperature DB/WB_______F_______F
Supply-air temperature DB/WB_______F_______F
Temperature differential_______F_______F
Water coil heat exchanger (Water
Pressure IN)
Water coil heat exchanger (Water
Pressure OUT)
WSHP-SVX01Q-EN87
________PSIG ________PSIG
________PSIG ________PSIG
Page 88
Start-Up
Table 53. Operating pressures in cooling/heating for GE* units