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 thoroughly before 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 situation that could result in
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
such as HCFCs and HFCs.
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!
Installing/servicing this unit could result in exposure to
electrical, mechanical and chemical hazards.
•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.
Failure to follow instructions could result in death or
serious injury.
This document and the information in it are the 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.
Revision History
WSHP-SVX13C-EN (03 January 2015)
•Added the option of a plenum fan allowing the unit to
work at higher external static pressures (ESP)
•Added selection of new motor
•Added option of insulated water coil and suction line
Product contains fiberglass wool. 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. Glass wool fibers may also cause
respiratory, skin or eye irritation.
Unit Inspection
•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.
•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
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 bill of 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
WARNING
Microbial Growth!
Wet interior unit insulation can become an amplification
site for microbial growth (mold), which may cause odors
and serious health related indoor air quality problems. If
there is evidence of microbial growth (mold) on the
interior insulation, remove or replace the insulation prior
to operating the system. Failure to remove microbial
growth could result in serious health problems.
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 unit should 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 orientation to maintain oil
in the compressor.
•Do not stack vertical units. Horizontal units may be
stacked two high.
Model Number Description
All products are identified by a multiple-character model
number that precisely identifies a particular type of unit. 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.
Unit Description
Before shipment, each unit is leak tested, dehydrated,
charged with refrigerant and run tested for proper control
operation.
Unit Nameplate
The unit nameplate is located on the outside of the control
box access panel at the front of the unit. It includes the unit
model number, serial number, electrical characteristics,
refrigerant charge, and other pertinent unit data.
WSHP-SVX13C-EN7
Page 8
General Information
Compressor Nameplate
The nameplate for the compressors are located on the
compressor shell.
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
The control system offered to control the unit is the
Tracer™ UC400 programmable BACnet™ unit controller.
The UC400 controller is standard for all unit sizes.
All power wiring to the equipment is made at the unit
power block. VSH/V 460V units require a neutral wire.
System Input Devices and Functions
A 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 UC400
control systems may be located in the back of this manual.
Pump Module (field installed accessory)
The pump module shall consist of either a single or dual
1/6 HP bronze pump and a brass 3-way shut-off valve. Cast
iron pumps are also acceptable. 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.
Access to the unit for service purposes should be provided
at installation. All configurations require clearance (see
Figure 2, p. 9 and Figure 1, p. 9) from other mechanical
and electrical equipment (as shown) to enable panel
removal from the unit for service/maintenance ability.
Some local and/or NEC codes require a greater service
clearance than listed below. Check all code requirements
prior to unit installations. The installer is responsible for
compliance with local and NEC code requirements.
Note: *Units in a free return application will
require more than a 1 inch clearance to
provide proper air flow to the units air-torefrigerant coil.
WSHP-SVX13C-EN9
1"
UNIT FRONT
36"
24"
LEFT RETURN
TOP/BACK SUPPLY
Page 10
Unit Dimensions
Figure 3. Left return/top supply - VSV with ECM
D
L
F
K
JM
TOP
B
LEFT SIDE
D
E
8 3/4”
H
3 5/8”
BLOWER
ACCESS
COMP/CONTROL
ACCESS
HI VOLT
LO VOLT
A
FRONTRIGHT SIDE
12”
9 1/2”
G
3 5/8”
W.O.
DRAIN
W.I.
C
Table 3.Dimensional data - left return/top supply -VSV with ECM
Note: Access to the unit for service purposes should be provided at installation. Local and/or NEC codes may require greater service clearance. Check all
code requirements prior to the unit installation. Installer is responsible for following all local and NEC code requirements.
10WSHP-SVX13C-EN
W.I.
NPTI
W.O.
NPTI
Drain
FPT
Page 11
Figure 4. Left return/top supply - VSV 5 tons with ECM
E
L
G
F
Unit Dimensions
K
J
TOP
B
LEFT SIDE
D
BLOWER
ACCESS
H
W.O.
COMP/CONTROL
10-5/8
ACCESS
HI VOLT
LO VOLT
4-5/8
A
FRONT
DRAIN
2 1/2"
W.I.
8 1/4"
19
C
RIGHT SIDE
Table 4.Dimensional data - left return/top supply -VSV060 with ECM
Note: Access to the unit for service purposes should be provided at installation. Local and/or NEC codes may require greater service clearance. Check all
code requirements prior to the unit installation. Installer is responsible for following all local and NEC code requirements.
WSHP-SVX13C-EN11
W.I.
NPTI
W.O.
NPTI
Drain
FPT
Page 12
Unit Dimensions
Figure 5. Left return/back supply - VSV 5 tons with ECM
D
E
JM
TOP
F
D
H
BLOWER
ACCESS
B
COMP/CONTROL
LEFT SIDE
8 3/4"
3 5/8"
ACCESS
HI VOLT
9 1/2"
LO VOLT
A
FRONTRIGHT SIDE
12"
G
3 5/8"
W.O.
DRAIN
W.I .
C
Table 5.Dimensional data - left return/back supply -VSV060 with ECM
W.I.
UnitsABCDEFGHJKLM
024–033 24-1/2 41-7/8 26-1/2183-1/41-7/89-1/2202310-1/2 13-1/23/163/43/43/4
042–050 26-1/2 46-7/8 30-1/2184-1/429-1/224-1/4 27-7/8 13-7/8 11-3/81/2113/4
Note: Access to the unit for service purposes should be provided at installation. Local and/or NEC codes may require greater service clearance. Check all
code requirements prior to the unit installation. Installer is responsible for following all local and NEC code requirements.
NPTI
NPTI
W.O.
Drain
FPT
12WSHP-SVX13C-EN
Page 13
Figure 6. Left return/back supply - VSV 5 tons with ECM
F
D
K
J
TOP
G
E
L
H
B
BLOWER
ACCESS
Unit Dimensions
W.O.
COMP/CONTROL
LEFT SIDE
10-5/8
ACCESS
HI VOLT
LO VOLT
4-5/8
A
FRONT
DRAIN
2 1/2"
W.I.
8 1/4"
19
C
RIGHT SIDE
Table 6.Dimensional data - left return/back supply -VSV060 with ECM
Note: Access to the unit for service purposes should be provided at installation. Local and/or NEC codes may require greater service clearance. Check all
code requirements prior to the unit installation. Installer is responsible for following all local and NEC code requirements.
NPTI
NPTI
W.O.
Drain
FPT
WSHP-SVX13C-EN13
Page 14
Unit Dimensions
B
E
Figure 7. Right return/top supply - VSV with ECM
BLOWER
ACCESS
F
D
H
D
L
K
JM
TOP
COMP/CONTROL
ACCESS
W.O.
HI VOLT
LO VOLT
C
LEFT SIDE
8 3/4"
3 5/8"
Table 7.Dimensional data - right return/top supply -VSV with ECM
UnitsABCDEFGHJKLM
DRAIN
12"
3 5/8"
9 1/2"
G
W.I .
A
FRONTRIGHT SIDE
W.I.
NPTI
W.O.
NPTI
Drain
FPT
024–033 24-1/2 41-7/8 26-1/2183-1/45-3/49-1/2202310-1/2 13-1/23/163/43/43/4
042–050 26-1/2 46-7/8 30-1/2184-1/429-1/224-1/4 27-7/8 13-7/8 11-3/81/2113/4
Note: Access to the unit for service purposes should be provided at installation. Local and/or NEC codes may require greater service clearance. Check all
code requirements prior to the unit installation. Installer is responsible for following all local and NEC code requirements.
14WSHP-SVX13C-EN
Page 15
Figure 8. Right return/top supply - VSV 5 tons with ECM
Unit Dimensions
G
F
E
L
D
J
TOP
BLOWER
ACCESS
H
B
W.O.
DRAIN
2 1/2"
W.I.
19
8 1/4"
C
RIGHT SIDE
LEFT SIDE
10-5/8
4-5/8
COMP/CONTROL
ACCESS
HI VOLT
LO VOLT
A
FRONT
K
Table 8.Dimensional data - right return/top supply - VSV060 with ECM
Note: Access to the unit for service purposes should be provided at installation. Local and/or NEC codes may require greater service clearance. Check all
code requirements prior to the unit installation. Installer is responsible for following all local and NEC code requirements.
WSHP-SVX13C-EN15
W.I.
NPTI
W.O.
NPTI
Drain
FPT
Page 16
Unit Dimensions
H
G
Figure 9. Right return/back supply VSV with ECM
F
D
B
BLOWER
ACCESS
D
E
JM
TOP
COMP/CONTROL
ACCESS
W.O.
HI VOLT
LO VOLT
C
LEFT SIDE
8 3/4"
3 5/8"
DRAIN
12"
W.I .
A
FRONTRIGHT SIDE
9 1/2"
3 5/8"
Table 9.Dimensional data - right return/back supply - VSV with ECM
UnitsABCDEFGHJKLM
024–033 24-1/2 41-7/8
042–050 26-1/2 46-7/8 30-1/2184-1/429-1/224-1/4 27-7/8 13-7/8 11-3/81/2113/4
Note: Access to the unit for service purposes should be provided at installation. Local and/or NEC codes may require greater service clearance. Check all
code requirements prior to the unit installation. Installer is responsible for following all local and NEC code requirements.
26-1/2
(673)
183-1/41-7/89-1/2202310-1/2 13-1/23/163/43/43/4
NPTI
W.I.
W.O.
NPTI
Drain
FPT
16WSHP-SVX13C-EN
Page 17
Figure 10. Right return/back supply - VSV 5 tons with ECM
G
L
E
B
BLOWER
ACCESS
Unit Dimensions
F
K
D
J
TOP
H
W.O.
DRAIN
2 1/2"
W.I.
19
8 1/4"
C
RIGHT SIDE
LEFT SIDE
10-5/8
4-5/8
COMP/CONTROL
ACCESS
HI VOLT
LO VOLT
A
FRONT
Table 10. Dimensional data - right return/back supply - VSV060 with ECM
Note: Access to the unit for service purposes should be provided at installation. Local and/or NEC codes may require greater service clearance. Check all
code requirements prior to the unit installation. Installer is responsible for following all local and NEC code requirements.
NPTI
NPTI
W.O.
Drain
FPT
WSHP-SVX13C-EN17
Page 18
Unit Dimensions
Figure 11. Left return/top supplyVSV with plenum fan
FD
D
TOP
JM
B
LEFT SIDE
E
9-3/4
BLOWER
ACCESS
H
W.O.
DRAIN
W.I.
RIGHT SIDE
C
3.56
HI VOLT
LO VOLT
FRONT
9-1/2
12
G
A
3-5/8
Table 11. Dimensional data—left return/top supply with plenum fan
Note: Access to the unit for service purposes should be provided at installation. Local and/or NEC codes may require greater service clearance. Check all
code requirements prior to the unit installation. Installer is responsible for following all local and NEC code requirements.
18WSHP-SVX13C-EN
W.I.
NPTI
W.O.
NPTI
Drain
FPT
Page 19
Figure 12. Left return/top supply — VSV060 with plenum fan
DG
TOP
J
F
D
BLOWER
ACCESS
Unit Dimensions
B
LEFT SIDE
10-5/8
4-5/8
H
W.O.
HI VOLT
LO VOLT
FRONT
AC
26.0780
DRAIN
W.I.
8-1/4
2-1/2
19
RIGHT SIDE
Table 12. Dimensional data—left return/top supply - VSV060 with plenum fan
Note: Access to the unit for service purposes should be provided at installation. Local and/or NEC codes may require greater service clearance. Check all
code requirements prior to the unit installation. Installer is responsible for following all local and NEC code requirements.
NPTI
NPTI
W.O.
Drain
FPT
WSHP-SVX13C-EN19
Page 20
Unit Dimensions
Figure 13. Right return/top supply with plenum fan
FD
D
E
BLOWER
ACCESS
B
HI VOLT
3.56
9-3/4
LEFT SIDE
LO VOLT
FRONT
A
H
9-1/2
12
G
3-5/8
TOP
W.O.
DRAIN
W.I.
RIGHT SIDE
MJ
C
Table 13. Dimensional data - right return/top supply with plenum fan
UnitsABCDEFGHJKLM
024–033 24-1/2 66-3/32 26-1/2183-1/4 7-23/32 9-1/22023N/AN/A1-3/43/43/43/4
042–050 26-1/2 71-3/32 30-1/2184-1/4 5-23/32 9-1/224-1/4 27-7/8N/AN/A1/2113/4
Note: Access to the unit for service purposes should be provided at installation. Local and/or NEC codes may require greater service clearance. Check all
code requirements prior to the unit installation. Installer is responsible for following all local and NEC code requirements.
20WSHP-SVX13C-EN
W.I.
NPTI
W.O.
NPTI
Drain
FPT
Page 21
Figure 14. Right return/top supply -VSV060 with plenum fan
BLOWER
ACCESS
Unit Dimensions
G
F
D
TOP
J
D
B
HI VOLT
LO VOLT
FRONT
AC
26.0780
LEFT SIDE
10-5/8
4-5/8
W.O.
DRAIN
H
19
8-1/4
2-1/2
W.I.
RIGHT SIDE
Table 14. Dimensional data - right return/top supply - VSV060 with plenum fan
Note: Access to the unit for service purposes should be provided at installation. Local and/or NEC codes may require greater service clearance. Check all
code requirements prior to the unit installation. Installer is responsible for following all local and NEC code requirements.
NPTI
NPTI
W.O.
Drain
FPT
WSHP-SVX13C-EN21
Page 22
Unit Dimensions
Figure 15. Left return/back supply VSH
1-1/8
A
1-1/821-1/4
23-3/4
TOP
LK
FH
G
J
3-1/2
DRAIN
3/4" NPTI
M
1/2
1-5/8
BACK
C
E
LEFT SIDE
D
RIGHT SIDE
Table 15. Dimensional data— left return/back supply
BLOWER
ACCESS
PANEL
B
F X G
OPENING
1-7/8
L(W.O.)
REFRIG
AND
CONTROL
ACCESS
HI VOLT
10
4
M(W.I.)
LO VOLT
7/82-1/2
18-7/8
2-1/4
FRONT
UnitsABCDEF x GHJKLM
NPTI
W.O.
NPTI
Drain
FPT
W.I.
024–033 60-1/42621-3/8242213-1/4 x 13-5/87-3/41-1/232-1/21-1/418-3/83/43/43/4
042–060 81-1/42621-3/8 25-1/22213-1/4 x 13-5/87-5/82-1/8521-1/418-3/8113/4
Note: Access to the unit for service purposes should be provided at installation. Local and/or NEC codes may require greater service clearance. Check all
code requirements prior to the unit installation. Installer is responsible for following all local and NEC code requirements.
22WSHP-SVX13C-EN
Page 23
Figure 16. Left return/right supply VSH
1-1/8
Unit Dimensions
A
21-1/4
1-1/8
23-3/4
TOP
LK
DRAIN
3/4" NPTI
BLOWER
ACCESS
PANEL
3-1/2
M
1-5/8
1/2
G
J
BACK
D
RIGHT SIDE
Table 16. Dimensional data— left return/right supply
FH
B
C
1-7/8
F X G
OPENING
L(W.O.)
REFRIG
AND
CONTROL
E
10
4
ACCESS
HI VOLT
LO VOLT
M(W.I.)
2-1/2
18-7/8
2-1/4
FRONTLEFT SIDE
UnitsABCDEF x GHJKLM
NPTI
W.O.
NPTI
Drain
FPT
W.I.
024–033 60-1/42621-3/8242213-1/4 x 13-5/84-3/46-1/432-1/21-1/418-3/83/43/43/4
042–060 81-1/42621-3/8 25-1/22213-1/4 x 13-5/87-3/46-1/4521-1/418-3/8113/4
Note: Access to the unit for service purposes should be provided at installation. Local and/or NEC codes may require greater service clearance. Check all
code requirements prior to the unit installation. Installer is responsible for following all local and NEC code requirements.
WSHP-SVX13C-EN23
Page 24
Unit Dimensions
Figure 17. Right return/back supply VSH
LK
23-3/4
TOP
1-1/8
1-5/8
F
M
3-1/2
1/2
DRAIN
3/4 NPTI
BACK
H
F X G
OPENING
1.875
BLOWER
ACCESS
PANEL
LEFT SIDE
D
RIGHT SIDE
Table 17. Dimensional data — right return/back supply
B
A
21-1/4
1-1/8
C
L(W.O.)
REFRIG
AND
CONTROL
E
10
4
ACCESS
HI VOLT
LO VOLT
M(W.I.)
2-1/27/8
18-7/8
2-1/4
FRONT
G
J
UnitsABCDEF x GHJKLM
NPTI
W.O.
NPTI
Drain
FPT
W.I.
024–033 60-1/42621-3/8242213-1/4 x 13-5/85-1/46-1/432-1/21-1/418-3/83/43/43/4
042–060 81-1/42621-3/8 25-1/22213-1/4 x 13-5/85-1/86-1/4521-1/418-3/8113/4
Note: Access to the unit for service purposes should be provided at installation. Local and/or NEC codes may require greater service clearance. Check all
code requirements prior to the unit installation. Installer is responsible for following all local and NEC code requirements.
24WSHP-SVX13C-EN
Page 25
Figure 18. Right return/left supplyVSH
Unit Dimensions
LK
23-3/4
TOP
1-1/8
BLOWER
ACCESS
3-1/2
PANEL
G
J
1-7/8
HF
D
M
1-5/8
1/2
RIGHT SIDE
Table 18. Dimensional data — right return/left supply
F X G
OPENING
B
A
LEFT SIDEBACK
21-1/41-1/8
C
L(W.O.)
REFRIG
AND
CONTROL
E
10
4
ACCESS
HI VOLT
LO VOLT
7/82-1/2
18-7/8
2-1/4
M(W.I.)
FRONT
UnitsABCDEF x GHJKLM
NPTI
W.O.
NPTI
Drain
FPT
W.I.
024–033 60-1/42621-3/8242213-1/4 x 13-5/84-7/81-1/232-1/21-1/418-3/83/43/43/4
042–060 81-1/42621-3/8 25-1/22213-1/4 x 13-5/84-3/41-1/2521-1/418-3/8113/4
Note: Access to the unit for service purposes should be provided at installation. Local and/or NEC codes may require greater service clearance. Check all
code requirements prior to the unit installation. Installer is responsible for following all local and NEC code requirements.
Water in/out size (NPTI)Inches3/43/4111
Condensate size (NPTI)Inches3/43/43/43/43/4
Blower wheel size Direct drive (inch)11 x 1011 x 1011 x 1011 x 1011 x 10
Inches16 x 2016 x 2020 x 2520 x 2520 x 25
Inches20 x 2020 x 2020 x 3020 x 3020 x 30
36WSHP-SVX13C-EN
Page 37
General Data
Table 29. Air-to-refrigerant coil
Model VSH*VSH*024VSH*033VSH*042VSH*050VSH*060
Working pressure650650650650650
Tubes high2020202020
Tubes deep33444
Number of circuits33555
Finned volume (H, W, D: inches)20 x 31.5 x 2.620 x 31.5 x 2.620 x 51 x 3.520 x 51 x 3.520 x 51 x 3.5
Coil surface area (ft
Fins per inch1212121212
Tube materialCopperCopperCopperCopperCopper
Tube OD (inch)3/83/83/83/83/8
Wall thickness (inch)0.0140.0140.0140.0140.014
Return bendsCopperCopperCopperCopperCopper
Table 30. Water volume
Model VSH*VSH*024VSH*033VSH*042VSH*050VSH*060
Internal water volume (in3)142.4142.4331.2331.2331.2
Internal water volume (ft
Internal water volume (gal)0.6160.6161.4341.4341.434
2
)4.3754.3757.0837.0837.083
3
)0.0820.0820.1920.1920.192
Table 31. Cabinet
Model VSV* with ECM OptionVSV*024VSV*033VSV*042VSV*050VSV*060
Length (inch)26-1/226-1/230-1/230-1/230 1/2
Unit size
Compressor typeRotaryRotaryScrollScrollScroll
Approximate weightWith pallet (lb)334334495495511
Approximate weightWithout pallet (lb)309309460460488
Nominal Filter sizeInches20 x 25 20 x 2524 x 3024 x 30(2) 20 x 30
Water in/out size (NPTI)Inches3/43/4111
Condensate size (NPTI)Inches3/43/43/43/43/4
Blower wheel size (ECM option) Direct drive (inch)11 x 811 x 812 x 1112 x 1111 x 10
Working pressure650650650650650
Tubes high1818242439
Tubes deep33444
Number of circuits44666
Finned volume (H, W, D: inches)18 x 21 x 2.618 x 21 x 2.624 x 25 x 3.524 x 25 x 3.539 x 29.3 x 3.5
Coil surface area (ft
Fins per inch1212121212
Tube materialCopperCopperCopperCopperCopper
Tube OD (inch)3/83/83/83/83/8
Wall thickness (inch)0.0140.0140.0140.0140.014
Return bendsCopperCopperCopperCopperCopper
2
)2.632.634.174.176.97
WSHP-SVX13C-EN37
Page 38
General Data
Table 33. Water volume
Model VSV*VSV*024VSV*033VSV*042VSV*050VSV*060
Internal water volume (in3)212212414414414
Internal water volume (ft
Internal water volume (gal)0.9180.9181.7921.7921.792
3
)0.1230.1230.240.240.24
Table 34. ISO Ratings (VSH)
(a)
Water Loop Heat PumpGround Water Heat PumpGround Loop Heat Pump
EAT in cooling and 68°F DB/59°F WB EAT in heating. Entering liquid temperature in cooling is 86°F for Water Loop, 77°F for Ground Loop (full load),
68°F for Ground Loop (part load), and 59°F for Ground Water. Entering liquid temperature in heating is 68°F for Water Loop, 32°F for Ground Loop (full
load), 41°F for Ground Loop (part load), and 50°F for Ground Water.
EAT in cooling and 68°F DB/59°F WB EAT in heating. Entering liquid temperature in cooling is 86°F for Water Loop, 77°F for Ground Loop (full load),
68°F for Ground Loop (part load), and 59°F for Ground Water. Entering liquid temperature in heating is 68°F for Water Loop, 32°F for Ground Loop (full
load), 41°F for Ground Loop (part load), and 50°F for Ground Water.
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 called out 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.
Note: The VSV units have been tied to the skid by (2)
shipping bolts.The removal of these bolts will
require a 3/8 inch (9.7 mm) ratchet with a ½ inch
(12.7 mm) socket.
Note: The VSH units have been secured to the skid by
shipping brackets. The removal requires a ½”
socket with a 3/8” ratchet.
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.
Note: Removal of compressor shipping brackets is
required on models VSHE 042, 050, 060 &
VSVE060.The removal of the shipping brackets
requires a 1/2” socket with a 3/8” ratchet. A bracket
is provided on the right and left side of the
compressor and requires the removal of 4 bolts per
bracket.
6. Fabricate and install duct work.
7. Install and connect a condensate drain line and trap to
the drain connection.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Failure to disconnect power
before servicing could result in death or serious injury.
WARNING
Proper Field Wiring and Grounding
Required!
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. Failure to
follow codes could result in death or serious injury.
Main Electrical
8. Verify the power supply complies with the unit
nameplate specifications.
9. Inspect all control panel components; tighten any
loose connections.
10. Connect properly sized and protected power supply
wiring to a field-supplied/installed disconnect switch
and to the power block.
11. Install proper grounding wires to an earth ground.
VSV/VSH 460V units require a neutral (a four wire
system).
Note: All field-installed wiring must comply with NEC
and applicable local codes.
Low Voltage Wiring (AC) Requirements
12. Install the zone sensor.
13. Connect properly sized control wiring to the proper
termination points between the zone sensor and the
unit control panel.
Filter Installation
14. Each unit ships with 1 inch or 2 inch disposable, MERV
8 or MERV 13 filter(s).The filter is factory installed.
Note: Do not operate the unit without filters.
Supply-Air Ductwork
Install the 1 inch supply-air duct flange to the unit with the
(8) 5/16 inch factory supplied head 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 21, p. 40.
Elbows with turning vanes or splitters are recommended
to minimize air noise due to turbulence and to reduce static
pressure.
The equipment factory ships with the filter rail and filter(s)
installed for free return.
When a ducted return is required, a ducted filter rack or
ducted panel must be installed on the unit.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. See Figure 22, p. 40.
Elbows with turning vanes or splitters are recommended
to minimize air noise due to turbulence and to reduce static
pressure.
Note: Installation of a return-air ducted panel or ducted
filter rack require the removal of the filter rails.
placed up stream of the unit or placed within a field
provided filter rack assembly.
Figure 23. Ducted panel
Table 36. Return air ducted panel (horizontal only)
UnitA BPart Number
024, 03331.5”19.2”4476 0334 0100
042, 050, 06051.1”19.2”4476 0335 0100
Ducted Filter Rack
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 side or bottom access
configurations.
Figure 24. Ducted filter rack
RETURN
AIR
DUCT COLLAR
(FACTORY PROVIDED)
Return Air Ducted Panel
Ducted panel
The return-air arrangement may be easily converted from
a free return-air system to a ducted return-air system with
the addition of a return-air ducted panel. By replacing the
filter rail with the return-air panel, a complete seal from the
duct to the unit is possible.The 1-inch duct panel facilitates
ease of field connection to the mechanical system.This
accessory is typically used when the return air filter is
For sound-sensitive installations, a vibration pad (field
provided) should be placed beneath the vertical unit.The
pad should be ½ inch (12.7 mm) thick, and equal to the
overall unit foot print.
Hanging the Horizontal Unit
WARNING
Risk of Unit Dropping!
You MUST mount the unit to an area of the ceiling
strong enough to support the weight of that unit. If
unsure, you MUST confirm with a structural engineer.
Failure to do so could result in unit dropping from the
ceiling which could result in death or serious injury, and
equipment damage.
To hang the horizontal configuration (see Figure 25, p. 41):
1. Install the hanging isolators (located in the return-air
section of the unit) into the six 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 ¼-12 pitch toward the drain
connection.This will insure proper drainage of the
unit. All plumbing to the unit should conform per
national and local codes and is the responsibility of the
contractor.
Condensate Drain Connection
Figure 26. Negative pressure system
Install proper trapping to the equipment.The unit drain
connection is ¾ in. NPT.
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 26, p. 41 for
appropriate dimensions required in a negative pressure
system.
Supply/Return Pipe Connections
Figure 27. Supply/return pipe connections
Figure 25. Hanging the unit
RETURN-AIR
3/8" ALL-THREAD
(BY OTHERS)
3/8" WASHER / NUT
(BY OTHERS)
WSHP-SVX13C-EN41
SUPPLY-AIR
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. Figure 27, p. 41 shows
Page 42
Installation
connection of a Hays Measurflo® balancing hose kit to the
water-in and water-out of a vertical unit.
Note: Figure 27, p. 41 example incorporates the Hays
Measurflo® balancing hose kit and a 2-position
isolation valve into the system design. An isolation
valve is often used in variable-speed pumping
applications.The isolation valve is designed to
stop water flow to the unit during non-operation
times.This allows the loop water pumps to run only
when a requirement for pumping is needed for
greater energy efficiency of the overall system
design.
System balancing hose kit
For automatic system balancing of a water source heat
pump, the Mesurflo® self-balancing hose kit provides a
constant flow rate over the pressure differential rage of 2
to 80 psid. As system pressure changes (through further
addition of heat pumps, for example) each individual flow
control valve will automatically adjust to the new system
conditions. In variable water volume applications, a selfbalancing hose kit can provide continuous balancing
because of its ability to automatically adjust to the varying
system conditions.
Note: At low differential pressure the flow area required
to achieve higher flow can exceed the flow area
available for the respective series.Therefore, the
minimum pressure differential requirement is
increased for the higher flow ranges of each series
Mesurflo valve.
Figure 28. Ball valve kit (manual)
Optional Isolation Valve
2-Position Valve
AUTOMATIC
TEMPERATURE
CONTROL
VALVE
Ball Valve
Optional Yball Strainer
w/Blowdown Valve &
Hose Connector
FLOW
Mesurmeter w/PT’s
Flex Hose
PT
Figure 29. MeasurfloVac kit (automatic)
Optional Isolation Valve
2-Position Valve
AUTOMATIC
Flex Hose
TEMPERATURE
CONTROL
VALVE
2510 Mesurflo w/PT’s
Ball Valve
Optional Yball Strainer
w/Blowdown Valve &
Hose Connector
PT
FLOW
Additional accessories, such as a strainer are
recommended for use to eliminate contaminants from
entering the co-axial water-to-refrigerant heat exchanger.
Cleaning and Flushing the Water Loop
After the piping system is complete, the flexible hose
connectors should be disconnected from the unit and
linked together using field supplied couplings (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 water circulating, the entire
system should be checked for leaks with repairs made
as required.
4. Operate the supplementary heat system (boiler) if
applicable making checks per manufacturer’s
instructions. 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 (if
applicable). Reconnect the hoses placing the water-torefrigerant heat exchanger in the water circulating
system.
42WSHP-SVX13C-EN
Page 43
Installation
Note: Vents should be open when the pumps and
supplementary heat system are shut down.
Field Installed Power Wiring
WARNING
Proper Field Wiring and Grounding
Required!
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. Failure to
follow codes could result in death or serious injury.
WARNING
Live Electrical Components!
During installation, testing, servicing and
troubleshooting of this product, it may be necessary to
work with live electrical components. Have a qualified
licensed electrician or other individual who has been
properly trained in handling live electrical components
perform these tasks. Failure to follow all electrical
safety precautions when exposed to live electrical
components could result in death or serious injury.
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 power block
inside the unit control box. Refer to the customer
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.
Control PowerTransformer
The 24V control power transformer is to be used only with
the accessories called out in this manual. All variablespeed WSHP units include a 75 VA control transformer
equipped with a circuit breaker. If a circuit breaker trips,
turn OFF all power to the unit before attempting to reset it.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Failure to disconnect power
before servicing could result in death or serious injury.
Sensor Location
Figure 30. Sensor location
NOTICE:
Use Copper Conductors Only!
Unit terminals are not designed to accept other types
of conductors. Failure to use copper conductors may
result in equipment damage.
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!
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. Failure to
follow codes could result in death or serious injury.
A field supplied disconnect switch must be installed at or
near the unit in accordance with the National Electric Code
(NEC latest edition).
NO
YES
NO
5 Feet
Location of the zone sensor is an important element of
effective room control.
Areas where the zone sensor should not be located
include:
•Behind doors or corners
•Near hot or cold air ducts
•Near radiant heat (this is 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
NO
WSHP-SVX13C-EN43
Page 44
Installation
Before installing any wire, refer to the electrical access
locations in “Unit Dimensions,” p. 9 of this manual.
Ensure that the AC control wiring between the controls
and the unit’s termination point does not exceed three (3)
ohms/conductor for the length of the run.
Note: Resistance in excess of 3Ω per conductor may
cause component failure due to insufficient AC
voltage supply.
Check all loads and conductors for grounds, shorts, and
mis-wiring.
Installation
of the
Axiom
model VS
Whether
securing the
Axiom model
VS to a central
pumping
system or a
distributed
pumping
system,Trane
recommends a
few accessory
considerations
to the system
installation.
1
2
4
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 39. 24V AC conductors
Distance from unit to
controlRecommended wire size
0-460 feet18 gauge
461-732 feet16 gauge
733-1000 feet14 gauge
6
Capped
Vente d
3
The field supplied line voltage disconnect (1) should be
installed for branch circuit protection.
Check local codes for requirements.
• The units (2) ¾-inch high voltage and (3) ½-inch low
voltage connections are located on the left corner of
the unit.They are designed to accept conduit.
• Trane recommends that the condensate system (4) be
set-up per negative pressure trapping in consideration
of the unit's draw-through design. With this properly
trapped system, when condensate forms during
normal operation, the water level in the trap rises until
there is a constant outflow.
•For acoustically sensitive areas, a ½-inch thick field
provided vibration pad (5) should be installed below
the vertical unit.This field provided piece should be
equal to the overall footprint size of the unit to provide
sound damping of the unit while in operation.
•Hose kits (6) are used to connect the water supply and
return lines to the water inlet and outlets. Trane
includes various hose kit combinations to better
facilitate system flow balancing.These flexible hoses,
5
reduce vibration between the unit and the rigid piping
system.
44WSHP-SVX13C-EN
Page 45
Electrical Data
WARNING
Rotating Components!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Failure to disconnect power
before servicing could result in death or serious injury.
Hard-wired input/outputs for the variable-speed WSHP
UC400 controller are defined in Table 43, p. 47.
Table 43. UC400 hard wired input/output definitions
UC400
Connection type
Analog Inputs
Universal Inputs
Binary Inputs
Binary Outputs
(b)
(Relay)
Binary Outputs
(c)
(Triac)
Analog Outputs/
Binary Inputs
Communication
Pressure Inputs
(a) For more information on the UC400 connection specifications, refer to the UC400 installation sheet; Literature Order Number X39641064-01.
(b) For Triac output control, 24VAC will be supplied to the Triac Supply input to be used for the Triac outputs.
(c) 24 Vac will be connected to the binary outputs and the UC400 will provide a contact closure for output control.
terminal
AI1
AI2Zone Setpoint0-1000 Ω40-115°F
AI3
AI4Heat Sink Temperature Sensor10 kΩ Thermistor-40-212°F
AI5Entering Water Temperature Sensor10 kΩ Thermistor-40-212°F
UI1Relative Humidity Sensor4–20 mA0-100%RH
UI2Leaving Water Temperature 10 kΩ Thermistor-40-212°F
BI1Local Occupancy
BI2Condensate Overflow
BI3
BO1Supply Fan On/Off Control
BO2Isolation ValveEnergized/De-Energized
BO3Compressor 1Energized/De-Energized
BO4NA
BO5NAEnergized/De-Energized
BO6NAEnergized/De-Energized
BO7Reversing ValveEnergized/De-Energized
BO8NAEnergized/De-Energized
BO9NAEnergized/De-Energized
AO1/ BI4Supply Fan Motor Control SignalPWM Output: 80Hz0-100% Duty Cycle
AO2/ BI5Variable Speed Compressor Control Signal0-10Vdc0-100% Compressor Output
IMC +NAComm.NA
IMC -NAComm.NA
LINK +BACnet Comm. +Comm.NA
LINK -BACnet Comm. -Comm.NA
PI1Test Mode Input
PI2Feedback from Compressor VFD
Variable-speed WSHP
configuration
Zone Temp Sensor/Timed Override and
Timed Override Cancel
Fan Mode (Control Auto/Off)
AHRI Audit Test Mode Initiate
Compressor Protection Status – Discharge
Line Thermostat/Low/High Pressure Cut Out/
Overload Relay Status
Connection
specifications
10 kΩ Thermistor-40-212°F
200-100 kΩ
24 Vac detect
2.88 A @24 Vac pilot duty
0.5 A max @24–277 Vac,
resistive and pilot duty
3-Wire:+5Vdc, Signal,
Gnd
3-Wire:+5Vdc, Signal,
Gnd
(a)
Auto/Off
Test Mode Active/Inactive
Normally Open
Occ./Unocc
Normally Closed
Okay/Failed
Normally Closed
Okay/Failed
Energized/De-Energized
Energized/De-Energized
0Vdc/5Vdc
(Normal/Test Mode Active)
0Vdc/5Vdc
(Okay/Drive Disabled or Failed)
Valid range
WSHP-SVX13C-EN47
Page 48
Variable-Speed WSHP Tracer™ UC400 Controller
UC400 Setpoints and Setup Parameters
The setpoints shown in Table 44, p. 48 are available for
modification through theTracer™TU Field ServiceTool if
changes from the factory default values are required.
Table 44. UC400 setpoints
Input NameSelectionsDefault
Default Setpoints
Space Temperature Setpoint Source
Unoccupied Cooling Setpoint40°F to 115°F85°F
Unoccupied Heating Setpoint40°F to 115°F60°F
Occupied Offset0.9°F to 18°F1.5°F
Standby Offset0.9°F to 18°F7.5°F
Space Temperature Setpoint Default40 to 115°F72.5°F
Setpoint Limits
Cooling Setpoint High Limit40 to 115°F110°F
Cooling Setpoint Low Limit40 to 115°F40°F
Heating Setpoint High Limit40 to 115°F105°F
Heating Setpoint Low Limit40 to 115°F40°F
Humidity Setpoint40–100%60%
BAS
Local Source
Default
Local Source
The setup parameters shown in Table 45, p. 48 are
available for modification through the Tracer™TU Field
ServiceTool if changes are required
Note: Table 45, p. 48 indicates only product-specific
setup parameters and does not include standard
Tracer™TU parameters (for example, units of
measure).
Table 45. UC400 setup parameters
Input NameRangeDefault
Device
Occupancy Request SourceLocal Source/BASLocal Source
Heat Cool Mode Request SourceLocal Source/BASLocal Source
Emergency Override Command SourceLocal Source/BASLocal Source
Space Temperature SourceLocal Source/BASLocal Source
Space Humidity SourceLocal Source/BASLocal Source
Entering Water Temperature SourceLocal Source/BASLocal Source
Supply Fan
(b)
(a)
Continuous
33%
Supply Fan Configuration Command
Enable Local Supply Fan Switch ControlEnable/DisableEnable
Supply Fan Speed Low Limit33-100%
Supply Fan Speed High Limit75-110%100%
Filter Runtime Hours EnableEnable/DisableEnable
Filter Runtime Hours Setpoint0-10000 hours600 hrs.
Bypass Time
Occupied Bypass Time
Humidity/Dehumidification
Space Dehumidification Setpoint Default40-100%60%
(a) Fan will cycle when unoccupied.
(b) The minimum supply fan speed percent is dependent upon the maximum supply fan speed PWM percent. The maximum supply fan speed percent is
based on the user selected maximum and is the highest fan speed the unit will run: 100% Cool output.
(c) The occupied bypass timer is used for timed override applications.
(c)
Continuous
Cycling with capacity
0-240 minutes120 minutes
48WSHP-SVX13C-EN
Page 49
Sequence of Operation
During normal operation, the compressor and supply fan
outputs modulate to maintain the space temperature at
the user-selected space temperature setpoint(s).
Functions other than heating and cooling that are
controlled by the variable-speed WSHP UC400 controller
are described in this section.
Random StartTimer
At power-up, the UC400 controller will generate a random
timer (unique to each controller) from 5–30 seconds.
During this time period, all unit functionality will be held
off until the timer expires.
For unoccupied zone setpoints, the UC400 has default
values for heating and cooling and they are adjustable
throughTracer™TU.
When multiple setpoint sources are available (local and
BAS), the controller will use the following logic for
determining which setpoint should be used for active
control:
1. If a valid communicated setpoint value is present, the
communicated value will be used for control.
2. If a valid communicated setpoint value is not present
but a valid hard-wired setpoint value is present, the
hard-wired value will be used for control.
3. If neither valid communicated or hard-wired setpoint
values are present, the controller will use the default
setpoints.
MaintenanceTimer
The UC400 controller will compare the amount of fan run
time against an adjustable filter runtime hours setpoint
(stored in the controller) to determine when maintenance
is recommended for the unit (check the filter status and
other routine maintenance items as necessary). The filter
runtime hours setpoint can be user-edited as required
through theTracer™TU service tool.The valid range for
the filter runtime hours setpoint is 0 to 10000 hours and
the default value is 600 hours. If the user selects a setpoint
of 0, the filter change required diagnostic is disabled.
Once the filter runtime hours setpoint has been exceeded,
the controller generates a filter change required
diagnostic.The user will be notified of this diagnostic in
building automation system applications or through
Tracer™TU.
The filter change required diagnostic is cleared whenever
a filter timer reset request is communicated to the
controller and the fan run hours has exceeded the fan run
hours limit. At that point, the fan run time is reset (to zero)
and the process starts over.
Setpoint Arbitration
Variable-speed WSHP units will require traditional zone
heating and cooling setpoints. These setpoints will be
available locally through the UC400 or may be provided
from a BAS.
The UC400 has provisions for a local zone setpoint input
with a range of 50-85°F which will be used in conjunction
with the occupied and standby offsets (Default 1.5°F and
7.5°F, respectively).The local occupied zone setpoints will
be calculated as follows depending on the occupancy
status of the unit:
Cooling Setpoint = Space Temp Setpoint Default +
(Occupied Offset or Standby Offset)
Heating Setpoint = Space Temp Setpoint Default—
(Occupied Offset or Standby Offset)
Sensor Arbitration
The following sensor values can be provided to the UC400
via hard-wired inputs or through BACnet communication.
The controller will use a valid communicated value for unit
control, regardless of the status of the hard-wired input.
•SpaceTemperature
•Entering WaterTemperature
•Space Humidity
Occupancy Determination
The following standard occupancy modes and arbitration
are supported in the VSPD WSHP UC400:
MSV
occupancy
request
UnoccupiedN/A
(a) MSV occupancy request is a communicated Occupancy Mode request
(a)
Occupied
Bypass
StandbyN/A
Auto
from a BAS.
Occupied mode
When the controller is in occupied mode, the unit will
attempt to maintain the space temperature to the active
occupied heating or cooling setpoint. Occupied mode is
the default mode of the UC400 controller.
Local
occupancy
input
OccupiedN/AOccupied
Unoccupied
OccupiedN/AOccupied
Unoccupied
OccupiedN/AOccupied
Unoccupied
Bypass
timer
ZeroStandby
Not zeroBypass
ZeroStandby
Not zeroBypass
ZeroUnoccupied
Not zeroBypass
ZeroStandby
Not zeroBypass
ZeroUnoccupied
Not zeroBypass
MSV
occupancy
status
WSHP-SVX13C-EN49
Page 50
Sequence of Operation
Unoccupied mode
When the controller is in Unoccupied mode, the unit will
attempt to maintain the space temperature at the stored
unoccupied heating or cooling setpoint (configurable
through the BAS or Tracer™TU).
Occupied Standby mode
The occupied standby mode allows the unit to operate at
a heating or cooling setpoint between the occupied and
unoccupied setpoints (space temperature setpoint ±
standby offset) to help maintain the space while
decreasing energy consumption. Unit operation in this
mode is identical to the occupied mode except for the
different heating and cooling setpoints.
Occupied Bypass mode
The occupied bypass mode is used to transition the unit
from the unoccupied mode to the occupied mode for a
period of time from 0 to 4 hours (configurable through
Tracer™TU).
The controller can be placed in occupied bypass mode by
either communicating an occupancy request of bypass or
by using the timed override (for example, ON)
functionality of the controller and applicable zone sensors:
Timed override operation
While the unit is operating in unoccupied mode, if the
timed override request button on the zone sensor is
selected for 0.2 to 5 seconds, the unit will recognize this as
a timed override request.This request is always accepted,
but will only transition to occupied bypass mode if the
controller was in unoccupied mode. Once initiated, the
unit will enter occupied bypass mode for the duration of
the occupancy bypass timer (default 120 minutes) or until
the timed override request is cancelled.
While the unit is operating in occupied bypass mode, the
timed override operation can be cancelled by a timed
override cancel request. This request is always accepted,
but the unit will transition back to unoccupied mode only
if the unit is currently operating in occupied bypass mode.
SomeTrane® zone sensors have ON and CANCEL buttons
for timed override operation. Pressing the ON button on
the zone sensor applies a direct short across the space
temperature input, as described above, and when the unit
is in unoccupied mode, initiates the occupied bypass
mode.The CANCEL button applies 1.5 k across the space
temperature input and is used to return a unit operating in
occupied bypass mode back into Unoccupied mode before
the occupancy bypass timer has expired.
Supply fan mode: Cycling
For active cooling, heating operation, the supply fan will
be commanded ON and will ramp up to minimum speed
once the unit determines that there is a request for cooling
or heating operation. Once the control determines that
there is no longer a capacity request, and the compressor
output is OFF, the supply fan will be de-energized once any
supply fan off delays have timed out. During the supply fan
off delay, the supply fan will remain energized for the
predetermined time at the previous unit function’s
minimum speed.
Note: During heating only, there will be a 30 second
supply fan off delay.
Supply fan mode: ON
For active unit control with the supply fan mode set to
continuous, the unit will energize the supply fan and hold
the fan speed output at the active minimum speed until
there is a request for the fan speed to increase. This will
hold true for all cases except during Unoccupied periods
in which the supply fan mode is forced to operate in
cycling mode.
Zone sensor fan switch
The controller supports a fan switch selection that is
selectable by an applicable zone sensor module. When the
fan switch is set to AUTO,the unit will utilize the configured
supply fan mode (cycling or continuous) for supply fan
output control and will operate heating, cooling, and
dehumidification in order to meet the space demand.
When the fan switch is set to OFF, the unit will enter OFF
mode. All heating and cooling capacity will be deenergized after the associated minimum on timers expire,
the isolation valve will be de-energized, and the supply fan
will de-energize once any associated off delay timer has
expired; no heating, cooling, or supply fan operation will
be allowed when the fan switch is set to OFF.
If required, the user can enable/disable the zone sensor fan
switch functionality through BAS or the Tracer™TU
service tool. A fan mode can also be requested through
BAS. If a requested fan mode is requested through BAS,
the local setting is ignored.
Supply fan mode operation
Variable-speed WSHP units can be set up to have either
cycling or continuous fan mode operation.This feature is
selectable throughTracer™TU or through a BAS as a
communicated value.The default value for the supply fan
mode is continuous.
50WSHP-SVX13C-EN
Page 51
Sequence of Operation
Unit Mode Arbitration
are provided through the BAS, arbitration is used to
determine the active mode as follows:
Manual mode determination
Any BAS request for AUTO mode or any other
enumeration for the heat cool mode request object that
results in a system mode request of AUTO will result in the
unit alternating between heating and cooling operation
automatically as described in the auto-changeoversection
(p. 51). If unit mode requests for modes other than AUTO
Refer to the Table 46, p. 51 to determine the unit operating
mode based on communicated heat cool mode request
values:
Note: If the local fan switch functionality is enabled and
the switch selection is set to OFF, the unit will be
OFF regardless of the heat cool mode request from
the BAS.
Table 46. Unit operating mode based on communicated value
Heat Cool Mode
Request
AUTOAUTOMode determined by active setpoint/sensor values.
HEATHEATFan Operation and Heating Operation Allowed; no Cooling or Dehumidification.
MORNING WARMUPHEATFan Operation and Heating Operation Allowed; no Cooling or Dehumidification.
COOLINGCOOL
NIGHT PURGEAUTOMode determined by active setpoint/sensor values.
PRE-COOLCOOL
OFFOFFFan, Cooling, Heating, and Dehumidification Operation disabled.
TESTAUTOMode determined by active setpoint/sensor values.
EMERGENCY HEATHEATFan Operation and Heating Operation Allowed; no Cooling or Dehumidification.
FAN ONLYFAN ONLYFan Operation at Maximum Speed only; no Heating or Cooling available.
FREE COOLAUTOMode determined by active setpoint/sensor values.
ICE-MAKINGAUTOMode determined by active setpoint/sensor values.
MAX HEATAUTOMode determined by active setpoint/sensor values.
ECONOMIZING AUTOMode determined by active setpoint/sensor values.
DEHUMIDIFYAUTOMode determined by active setpoint/sensor values.
CALIBRATEAUTOMode determined by active setpoint/sensor values.
Effective Unit
Mode OperationDescription
Fan Operation, Cooling Operation, Dehumidification Operation Allowed; no Heating
Operation.
Fan Operation, Cooling Operation, Dehumidification Operation Allowed; no Heating
Operation.
Auto-Changeover
When the effective unit mode is auto, the following auto-
changeover rules are used to determine the active unit
mode:
At power-up, or after a unit reset, the active unit mode is
set to:
•Heat, if the active space temperature < the cooling
setpoint
•Cool, if the active zone temperature > the cooling
setpoint
If the active unit mode is cool, the active unit mode is
switchedto heat when both of the following conditions are
met:
•Active space temperature < the heating setpoint
• There is no longer a request for cooling
If the active unit mode is heat, the active unit mode is
switchedto cool when both of the following conditions are
met:
•Active zone temperature > cooling setpoint
• There is no longer a request for heating
WSHP-SVX13C-EN51
Note: Once the controller determines that there is a need
to change the active unit mode, the compressor will
not energize for the new mode until the
compressor minimum off time has been met.
Isolation Valve Operation
For all units, the UC400 supports a two-position water
isolation valve without needing any special configuration;
by default, the UC400 will control as though isolation
valves are present.
Isolation Valve “ON” Control
The isolation valve output will be energized prior to the
compressor (controlled open) during active compressor
heating, cooling, dehumidification, and when forced open
during manual output override testing.The water isolation
valve will be driven open during all heating and cooling
requests, even if the compressor output is not energized,
such as during low load conditions when the compressor
is operating in the duty cycle routine in order to achieve its
minimum capacity.To reduce excessive cycling of the
isolation valve, once opened, the isolation valve will
remain open for a minimum of 10 minutes.
Page 52
Sequence of Operation
Entering water temperature (EWT)
sampling
The controller will sample the entering water temperature
to determine proper control action for all units that utilize
a hard-wired entering water temperature indication. If the
entering water temperature is communicated to the
controller via a BAS system, then no sampling will be
required.When the EWT sampling function is invoked, the
isolation valve output will be driven open for 3 minutes
and the EWT reading is taken at that time.
EWT sampling will not occur automatically at power up,
only when all of the following conditions are met:
•EWT is not communicated via BAS system
• There is a new request for compressor operation.
• The isolation valve is not OPEN.
•It has been more than an hour since the last time that
the isolation valve was opened.
After the 3-minute EWT sampling time period expires, the
isolation valve will remain open for compressor operation.
Isolation Valve “OFF” Control
The isolation valve output will be de-energized (controlled
closed) when there is no longer a request for compressor
operation and the 10minute minimum on time has expired
or the manual output override test has driven it closed.
Demand Limit Operation
The controller supports a communicated request for
demand limiting operation of the compressor and supply
fan outputs. Demand limiting operates as follows: If the
point is placed into the active state, the unit limits the
compressor capacity output to 50% for all unit modes
(cooling and heating). During this period, the supply fan
tracks the compressor as normal and is limited by the userselected minimum and maximum fan speeds. Demand
limit requests do not override compressor startup and
shutdown sequences or unit protection modes.
Reversing Valve Operation
For normal unit operation, the reversing valve output is
energized when the unit is in cooling mode and deenergized in heating mode. Under normal operating
modes, the reversing valve does not change states until
the compressor is energized and reaches its startup speed.
Cooling and Heating Operation
For normal cooling and heating operation, the unit cooling
or heating capacity will modulate and cycle based on a PI
algorithm in order to meet the active space setpoint. The
following fan and compressor actions are based on the
required unit capacity:
•When no unit capacity is required, the compressor
output(s) will be OFF.
•When the required unit capacity is less than the
compressor can provide at its minimum speed, the unit
will operate in a duty cycle schemebased on a required
ON/OFF time in order to meet the space demand.
•When the required unit capacity is greater than the
minimum capacity for the unit, the unit will operate the
compressor and fan between minimum and maximum
capacity in order to meet the space demand.
Unoccupied Cooling and Heating
Operation
The unit will control the zone temperature to the active
unoccupied setpoints during unoccupied periods.
52WSHP-SVX13C-EN
Page 53
Pre-Start Checklist
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 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?
•Is vibration isolation provided? (i.e. unit isolation pad,
hose kits)
•Is unit serviceable? See “Clearance Dimensions,” p. 9.
•Are the low/high-side pressure temperature caps
secure and in place?
•Are all the unit access panels secure and in place?
•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?
WSHP-SVX13C-EN53
Page 54
Start-Up
Note: Start-up with the heat pump zone sensor is
included below:
1. Cooling mode expectations: On the zone sensor, set
the fan/system mode switch to the AUTO position.
2. Reduce the zone sensor setpoint 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.
Cool air should blow from the register. 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 cool with no frost observed on
the refrigerant circuit.
3. Check the cooling refrigerant pressures against values
in Table 49, p. 56.
4. Turn the zone sensor fan/system mode switch to the
OFF position. Unit should stop running and the
reversing valve should de-energize.
5. Leave unit off for approximately 5 minutes to allow for
pressure equalization.
6. Turn the zone sensor setpoint to the highest setting.
7. Heating mode expectations: Set the zone system fan/
system mode switch to the AUTO position.
8. Wait until the unit energizes the Fan and Compressor
for Heating operation. 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 on
the refrigeration circuit.
9. Check the heating refrigerant pressures against values
in Table 49, p. 56.
10. Set the zone sensor setpoint to the appropriate setting
according to the application requirements. Note the
Occupied Offset selection when determining the
desired cooling and heating setpoints.
11. Instruct the owner on system operation.
Table 47. Checklist
MODEHeatCool
Water coil heat exchanger
(Water Pressure OUT)
Pressure Differential_________PSIG _________PSIG
COMPRESSOR
Amps
Volts
Discharge line temperature
(after 10 minutes)
_________PSIG _________PSIG
_______F_______F
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°F(DB), 67°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 47. 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)
54WSHP-SVX13C-EN
_________PSIG _________PSIG
Page 55
Table 48. Operating pressures in cooling/heating -VSH
Table 54, p. 58 and Table 55, p. 58 are provided for use in
calculating glycol requirements for the unit.
Table 54. Water volume - VSH
Model VSH VSH024 VSH033 VSH042 VSH050 VSH060
Internal
water
volume (in
Internal
water
volume (ft
Internal
water
volume (gal)
Table 55. Water volume - VSV
Model VSV VSV024 VSV033 VSV042 VSV050 VSV060
Internal
water
volume (in
Internal
water
volume (ft
Internal
water
volume (gal)
142.4142.4331.2331.2331.2
3
)
0.0820.0820.1920.1920.192
3
)
0.6160.6161.4341.4341.434
212212414414414
3
)
0.1230.1230.240.240.24
3
)
0.9180.9181.7921.7921.792
58WSHP-SVX13C-EN
Page 59
Maintenance
scale.This service should be performed by an experienced
service person.
Preventive Maintenance
Maintenance on the unit is simplified with the following
preventive suggestions:
Filter maintenance must be performed to assure proper
operation of the equipment. Filters should be inspected at
least every three months, and replaced when it is evident
they are dirty. Filter sizing is shown in Table 57, p. 59:
Table 56. Filter sizing for disposable filters -VSH
Size (60 Hz)Nominal Filter Size
VSH 024-033
VSH 042-06020 inch x 25 inch 20 inch x 30 inch
Table 57. Filter sizing for disposable filters - VSV
Size (60 Hz)Nominal Filter Size
VSV 024-03320 inch x 25 inch
VSV 042-05024 inch x 30 inch
The use of untreated or improperly treated water in
coils could result in scaling, erosion, corrosion, algae or
slime. It is recommended that the services of a
qualified water treatment specialist be engaged to
determine what water treatment, if any, is required.
Trane assumes no responsibility for equipment failures
which result from untreated or improperly treated
water or saline or brackish water.
CondensateTrap
For units incorporating a negative trap design, ensure that
the condensate system is primed with water at all times.
Allowing a negative, pressure condensate system to run
dry could cause a break in the condensate seal allowing
the fan to draw water from the condensate line to spray
moisture into the mechanical system. By maintaining a
primed condensate trap, a seal will be created and will
help prevent these complications. The condensate trap
must be field installed.
Note: When maintenance is performed on this unit, care
should be taken not to damage the foil face
insulation surfaces. If damage occurs repair
damage with foil faced tape.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Failure to disconnect power
before servicing could result in death or serious injury.
Check the contactors and relays within the control panel at
least once a year. It is good practice to check the tightness
of the various wiring connections within the control panel.
A strainer (60 mesh or greater) must be used on an open
loop system to keep debris from entering the unit heat
exchanger and to ensure a clean system.
For units on well water, it is important to check the
cleanliness of the water-to-refrigerant heat exchanger.
Should it become contaminated with dirt and scaling as a
result of bad water, the heat exchanger will have to be back
flushed and cleaned with a chemical that will remove the
WSHP-SVX13C-EN59
Page 60
Troubleshooting
WARNING
Hazardous Service Procedures!
The maintenance and troubleshooting procedures recommended in this section of the manual could result in
exposure to electrical, mechanical or other potential safety hazards. Always refer to the safety warnings provided
throughout this manual concerning these procedures. When possible, disconnect all electrical power including
remote disconnects before servicing.
Follow proper lockout/tagout procedures to ensure the power can not be inadvertently energized.When necessary to
work with live electrical components, have a qualified licensed electrician or other individual who has been trained in
handling live electrical components per these tasks. Failure to follow all of the recommended safety warnings
provided, could result in death or serious injury.
General UnitTroubleshooting
1
ProblemHeating CoolingCauseCorrection
XXMain power offCheck fuses
No response to any zone sensor
setting
Unit short cyclesXXZone sensor improperly locatedRelocate
Blower runs but compressor does not
Insufficient capacity
High pressure switch open
XXDefective control transformerReplace
XXBroken or loose connectionRepair
XXDefective zone sensorReplace
XXTransformerReset Transformer
XXSupply Voltage too lowCorrect
XXDefective windingsReplace
XXLimit switches openCheck cause/replace or repair
XXZones sensor errorCheck cause/replace or repair
XXCompressor drive errorCheck cause/replace or repair
XXDirty filterReplace/clean
XXBlower RPM too low Correct
XX
XIntroduction of excessively hot return airCorrect
XIntroduction of excessively cold return airCorrect
XXLow on refrigerant charge
XXRestricted thermal expansion valveReplace
XXZone sensor improperly locatedRelocate
XXUnit undersizedRecalculate heat gains/losses
XXInadequate water flowIncrease GPM
XXScaling in heat exchanger Clean or replace
XWater too hotDecrease temperature
XWater too coldIncrease temperature
XXFilter drier blockedReplace
XXDefective reversing valveCheck or replace
XInadequate GPMIncrease water flow to unit
XWater too hotDecrease temperature
XInadequate air flowCheck, clean blower and coil
XDirty filterClean/replace
XXOvercharged with refrigerantDecrease charge
XXDefective pressure switchCheck or replace
Loss of conditioned air due to leaks in
ductwork
Repair leaks
Locate leak, repair and recharge by
weight (not by superheat)
1
Variable speed compressors sound different than single speed compressors. The compressor sound will change as the speed and operating conditions change.
60WSHP-SVX13C-EN
Page 61
Troubleshooting
ProblemHeating CoolingCauseCorrection
XTrash in heat exchangerBackflush
XLow water flowIncrease GPM
XXOvercharge of refrigerantDecrease charge
High head pressure
Low suction pressureXXUnderchargedLocate leak; repair and recharge
XXNon-condensable in systemEvacuate and recharge by weight
XXWater too hotDecrease temperature
XDirty filterClean/replace
XInadequate air flowCheck, clean blower and coil
XDirty filterClean/replace
XXUndercharged with refrigerantIncrease charge
XXDefective pressure switchReplace
XXHeat transfer fluid too coldRaise water temperature
Compressor Drive
Troubleshooting
The variable-speed compressor drive includes internal
protection functions that limit the compressor operation,
or in some cases, disable compressor operation
completely.In an event occurs that causes the compressor
operation to shut down, the compressor drive sends a
binary signal to the VSPD WSHP UC400 controller and a
diagnostic is generated. Refer to Table 59, p. 61 for the
correct DIP switch settings for each unit.The DIP switches
are located on the interface module located in the
compressor drive assembly.
WSHP-SVX13C-EN61
Page 62
Troubleshooting
Pressure transducer/controller
For units with the plenum fan option, gravity will affect the
diaphragm and consequently the pressure measurement
value of the pressure transducer/controller.
Note: This does not apply to units with the ECM fan/
motor option.
If the CFM control does not seem to be performing as
expected, the pressure transducer/controller may need to
be reset.This procedure will have been performed at the
factory and generally will not be needed in the field.
To perform this procedure, the power on to the transducer
must be on but the pressure probe (tubing) must not be
connected. Place the magnet at the marked location to
permit the activation of a reed switch in the control
electronics from the outside. This process will adjust the
gravity effect to zero.The controller will display for a short
time that the offset has been zeroed and saved.
Once this procedure is complete, attach the pressure
tubing to the negative pressure port.
Figure 31. Pressure controller
62WSHP-SVX13C-EN
Page 63
Control Wiring
Figure 32. 208V single-phase wiring with ECM option
WSHP-SVX13C-EN63
Page 64
Control Wiring
Figure 33. 460V three-phase wiring with ECM option
64WSHP-SVX13C-EN
Page 65
Figure 34. 460V three-phase wiring with plenum fan
Control Wiring
Notes: Unless otherwise noted, all switches are shown at 25°C (77°F), at atmospheric pressure, at 50% relative humidity, with all util ities turned off, and
after a normal shutdown has occurred. Dashed lines indicate recommended field wiring by others. Field writing to be rated for 600V. Dashed line
enclosure and/or dashed device outlines indicate components provided by the field. Solid lines indicate wiring by the Trane company. Numbers
along the right side of the schematic designate the location of the contacts by line number. All field wiring must be in accordance with the National
Electric Code (NEC) and state and local requirements.
WSHP-SVX13C-EN65
Page 66
Page 67
Page 68
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Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.