ClimateMaster Tranquility 16 Compact Series Instruction manual

Tranquility®16
COMPACT (TC) Series
MODELS TCH/V 006 - 60
60 HZ - HFC-410A
INSTALLATION, OPERATION
& MAINTENANCE
97B0075N07
Revised: 04 February, 2013
Table of Contents
Model Nomenclature - General Overview 3
General Information 4
Unit Physical Data 6
Horizontal Installation 7
Field Conversion of Air Discharge 9
Horizontal Installation 10
Vertical Installation 11
Piping Installation 13
Water-Loop Heat Pump Applications 14
Ground-Loop Heat Pump Applications 15
Ground-Water Heat Pump Applications 17
Water Quality Standards 19
Electrical - Line Voltage 20
Electrical - Power Wiring 22
Electrical - Power & Low Voltage Wiring 23
Electrical - Low Voltage Wiring 24
Electrical - Thermostat Wiring 25
TC Blower Performance Data 26
Typical Wiring Diagram - Units with DXM Board
and PSC Fan Motor (Three Phase) 27
Typical Wiring Diagram - Units with CXM Board
and PSC Fan Motor (Single Phase) 28
CXM Controls 29
DXM Controls 30
Safety Features - CXM and DXM Controls 32
Unit Starting and Operating Conditions 34
Piping System Cleaning and Flushing 35
Unit and System Checkout 36
Unit Start-Up Procedure 37
Unit Operating Conditions 39
Preventive Maintenance 44
Functional Troubleshooting 45
Performance Troubleshooting 46
Start-Up Log Sheet 47
Functional Troubleshooting 48
Warranty (U.S. & Canada) 49
Warranty (International) 50
Revision History 52

2ClimateMaster Water-Source Heat Pumps
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility®Compact (TC) Series
Rev.: 02/04/13
This Page Intentionally Left Blank

3
climatemaster.com
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tranquility®Compact (TC) Series
Rev.: 02/04/13
Model Nomenclature - General Overview
Note: Above model nomenclature is a general reference. Consult individual engineering guides for detailed information.
TC V A0 3 6 CG 3 0 C L T S
1 2 3 4 5 6 7
8
9101112131415
TC = TRANQUILITY ®COMPACT HFC-410A
MODEL TYPE
H = HORIZONTAL
CONFIGURATION
V = VERTICAL
UNIT SIZE
018 - E,G
024 - E,G,H,F
030 - E,G,H,F
036 - E,G,H,F
042 - G,H,F,N
048 - G,H,F,N
060 - G,H,F,N
REVISION LEVEL
A = CURRENT REVISION
VOLTAGE
C = CXM
CONTROLS
D = DXM
L = CXM w/LON
M = DXM w/LON
N = CXM w/MPC
P = DXM w/MPC
1 = EXTENDED RANGE
CABINET INSULATION
2 = EXTENDED RANGE w/ULTRA QUIET
0 = NONE
FUTURE USE
A = Copper Water Coil w/Coated Air Coil
HEAT EXCHANGER OPTIONS
C = Copper Water Coil w/Non-Coated Air Coil
L = LEFT RETURN
RETURN AIR OPTIONS
R = RIGHT RETURN
B = BACK DISCHARGE, HORIZONTAL ONLY
SUPPLY AIR OPTIONS
Y = BACK DISCHARGE, HIGH STATIC HORIZONTAL
T = TOP DISCHARGE, VERTICAL ONLY
V = TOP DISCHARGE, HIGH STATIC
VERTICAL
S = STRAIGHT DISCHARGE, HORIZONTAL ONLY
Z = STRAIGHT DISCHARGE, HIGH STATIC HORIZONTAL
S = STANDARD
J = Cupro-nickel Water Coil w/Coated Air Coil
N = Cupro-nickel Water Coil w/Non-Coated Air Coil
015 - E,G
012 - E,G
009 - E,G
006 - E,G
3 = STANDARD RANGE
4 = STANDARD RANGE w/ULTRA QUIET
V = LEFT RETURN S.S. DRAIN PAN
W = RIGHT RETURN S.S. DRAIN PAN
F = FRONT RETURN, TCV009-030, and 041 ONLY
Z = FRONT RETURN, S.S. DRAIN PAN, TCV009-030, and 041 ONLY
G = 208-230/60/1
E = 265/60/1
H = 208-230/60/3
F = 460/60/3
N = 575/60/3
AVAILABLE
VOLTAGES
041 - G,H,F,N (TCV only)

4ClimateMaster Water-Source Heat Pumps
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility®Compact (TC) Series
Rev.: 02/04/13
General Information
 WARNING! 
 WARNING! 
 WARNING! 
 CAUTION! 
S
torage
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on
 WARNING! 
WARNING! To avoid the release of refrigerant into the
atmosphere, the refrigerant circuit of this unit must be
serviced only by technicians who meet local, state, and
federal proficiency requirements.
WARNING! All refrigerant discharged from this unit must
be recovered WITHOUT EXCEPTION. Technicians must
follow industry accepted guidelines and all local, state, and
federal statutes for the recovery and disposal of refrigerants.
If a compressor is removed from this unit, refrigerant circuit
oil will remain in the compressor. To avoid leakage of
compressor oil, refrigerant lines of the compressor must be
sealed after it is removed.
CAUTION! To avoid equipment damage, DO NOT use
these units as a source of heating or cooling during the
construction process. The mechanical components and filters
will quickly become clogged with construction dirt and debris,
which may cause system damage.
Safety
Warnings, cautions, and notices appear throughout this
manual. Read these items carefully before attempting any
installation, service, or troubleshooting of the equipment.
DANGER: Indicates an immediate hazardous situation,
which if not avoided will result in death or serious injury.
DANGER labels on unit access panels must be observed.
WARNING: Indicates a potentially hazardous situation,
which if not avoided could result in death or serious injury.
CAUTION: Indicates a potentially hazardous situation or
an unsafe practice, which if not avoided could result in
minor or moderate injury or product or property damage.
NOTICE: Notification of installation, operation, or
maintenance information, which is important, but which is
not hazard-related.
WARNING! The EarthPure®Application and Service Manual
should be read and understood before attempting to service
refrigerant circuits with HFC-410A.
Inspection - Upon receipt of the equipment, carefully
check the shipment against the bill of lading. Make sure
all units have been received. Inspect the packaging of
each unit, and inspect each unit for damage. Ensure that
the carrier makes proper notation of any shortages or
damage on all copies of the freight bill and completes a
common carrier inspection report. Concealed damage
not discovered during unloading must be reported to the
carrier within 15 days of receipt of shipment. If not filed
within 15 days, the freight company can deny the claim
without recourse.
Note: It is the responsibility of the purchaser to file all
necessary claims with the carrier. Notify your equipment
supplier of all damage within fifteen (15) days of
shipment.
Storage - Equipment should be stored in its original
packaging in a clean, dry area. Store units in an upright
position at all times. Stack units a maximum of 3 units
high.
Unit Protection - Cover units on the job site with either
the original packaging or an equivalent protective
covering. Cap the open ends of pipes stored on the
job site. In areas where painting, plastering, and/or
spraying has not been completed, all due precautions
must be taken to avoid physical damage to the units
and contamination by foreign material. Physical damage
and contamination may prevent proper start-up and may
result in costly equipment clean-up.
WARNING! The installation of water-source heat pumps and
all associated components, parts, and accessories which
make up the installation shall be in accordance with the
regulations of ALL authorities having jurisdiction and MUST
conform to all applicable codes. It is the responsibility of
the installing contractor to determine and comply with ALL
applicable codes and regulations.

5
climatemaster.com
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tranquility®Compact (TC) Series
Rev.: 02/04/13
 CAUTION! 
 CAUTION! 
 CAUTION! 
CAUTION! All three phase scroll compressors must have
direction of rotation verified at start-up. Verification is
achieved by checking compressor Amp draw. Amp draw
will be substantially lower compared to nameplate values.
Additionally, reverse rotation results in an elevated sound
level compared to correct rotation. Reverse rotation will result
in compressor internal overload trip within several minutes.
Verify compressor type before proceeding.
CAUTION! DO NOT store or install units in corrosive
environments or in locations subject to temperature or
humidity extremes (e.g., attics, garages, rooftops, etc.).
Corrosive conditions and high temperature or humidity can
significantly reduce performance, reliability, and service life.
Always move and store units in an upright position. Tilting
units on their sides may cause equipment damage.
NOTICE! Failure to remove shipping brackets from
spring-mounted compressors will cause excessive
noise, and could cause component failure due to
added vibration.
CAUTION! CUT HAZARD - Failure to follow this caution may
result in personal injury. Sheet metal parts may have sharp
edges or burrs. Use care and wear appropriate protective
clothing, safety glasses and gloves when handling parts and
servicing heat pumps.
Examine all pipes, fittings, and valves before installing
any of the system components. Remove any dirt or debris
found in or on these components.
Pre-Installation - Installation, Operation, and
Maintenance instructions are provided with each unit.
Horizontal equipment is designed for installation
above false ceiling or in a ceiling plenum. Other unit
configurations are typically installed in a mechanical
room. The installation site chosen should include
adequate service clearance around the unit. Before unit
start-up, read all manuals and become familiar with the
unit and its operation. Thoroughly check the system
before operation.
Prepare units for installation as follows:
1. Compare the electrical data on the unit nameplate
with ordering and shipping information to verify that
the correct unit has been shipped.
2. Keep the cabinet covered with the original packaging
until installation is complete and all plastering,
painting, etc. is finished.
3. Verify refrigerant tubing is free of kinks or dents and
that it does not touch other unit components.
4. Inspect all electrical connections. Connections must
be clean and tight at the terminals.
5. Remove any blower support packaging (water-to-air
units only).
6. Loosen compressor bolts on units equipped with
compressor spring vibration isolation until the
compressor rides freely on the springs. Remove
shipping restraints. (No action is required for
compressors with rubber grommets.)
7. Some airflow patterns are field convertible (horizontal
units only). Locate the airflow conversion section of
this IOM.
8. Locate and verify any hot water generator (HWG),
hanger, or other accessory kit located in the
compressor section or blower section.

6ClimateMaster Water-Source Heat Pumps
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility®Compact (TC) Series
Rev.: 02/04/13
TC Series 006 009 012 015 018 024 030 036 041 042 048 060
Compressor (1 Each) Rotary Scroll
Factory Charge HFC-410A (oz) 17 18.5 23 32 43 43 47 50 70 70 74 82
PSC Fan Motor & Blower
Fan Motor Type/Speeds PSC/3 PSC/3 PSC-3 PSC/3 PSC/3 PSC/3 PSC/3 PSC/3 PSC/3 PSC/3 PSC/3 PSC/3
Fan Motor (hp) 1/25 1/10 1/10 1/6 1/6 1/4 3/4 1/2 3/4 3/4 3/4 1
Blower Wheel Size (Dia x w) 5x5 5x5 6x5 8x7 8x7 9x7 9x7 9x8 9x8 9x8 10x10 11x10
Water Connection Size
FPT 1/2” 1/2” 1/2” 1/2" 1/2" 3/4" 3/4" 3/4" 3/4” 3/4" 1" 1"
Coax Volume (gallons) 0.123 0.143 0.167 0.286 0.450 0.286 0.323 0.323 0.890 0.890 0.738 0.939
Vertical
Air Coil Dimensions (H x W) 10x15 10x15 10x15 20x17.25 20x17.25 20x17.25 20x17.25 24x21.75 20x17.25 24x21.76 24x28.25 24x28.25
Filter Standard - 1" Throwaway 10x18 10x18 10x18 20x20 20x20 20x20 20x20 24x24 20x20 24x24 1-14x24,
1-18x24
1-14x24,
1-18x24
Weight - Operating (lbs.) 103 105 114 153 158 189 197 203 210 218 263 278
Weight - Packaged (lbs.) 113 115 124 158 163 194 202 209 217 224 270
285
Horizontal
Air Coil Dimensions (H x W) 10x15 10x15 10x15 16x22 16x22 16x22 16x22 20x25 N/A 20x25 20x35 20x35
Filter Standard - 1" Throwaway 10x18 10x18 10x18 16x25 16x25 18x25
18x25 20x28 or
2-20x14
N/A
20x28 or
2-20x14
1-20x24,
1-20x14
1-20x24,
1-20x14
Weight - Operating (lbs.) 103 105 114 153 158 174 182 203 N/A 218 263 278
Weight - Packaged (lbs.) 113 115 124 158 163 179 187 209 N/A 224 270 285
Notes:
All units have TXV expansion device, and 1/2” & 3/4” electrical knockouts.
FPT = Female Pipe Thread
Condensate Drain Connection is 3/4” FPT.
575 volt fan motors are two speed.
Unit Maximum Water Working Pressure Max Pressure PSIG [kPa]
Base Unit 300 [2,068]
Unit Physical Data
Tranquility® 16 (TC) Series (60 Hz)

7
climatemaster.com
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tranquility®Compact (TC) Series
Rev.: 02/04/13
Horizontal Installation
Mounting Horizontal Units
Horizontal units have hanger kits pre-installed from the
factory as shown in Figure 1. Figure 3 shows a typical
horizontal unit installation.
Horizontal heat pumps are typically suspended above
a ceiling or within a soffit using field supplied, threaded
rods sized to support the weight of the unit.
Use four (4) field supplied threaded rods and factory
provided vibration isolators to suspend the unit. Hang
the unit clear of the floor slab above and support the
unit by the mounting bracket assemblies only. DO NOT
attach the unit flush with the floor slab above.
Pitch the unit toward the drain as shown in Figure 2 to
improve the condensate drainage. On small units (less
than 2.5 tons/8.8kW) ensure that unit pitch does not
cause condensate leaks inside the cabinet.
Figure 1: Hanger Bracket
Figure 2: Horizontal Unit Pitch
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1/4” (6.4mm) pitch
per foot for drainage
Drain Connection
Horizontal Unit Location
Units are not designed for outdoor installation. Locate
the unit in an INDOOR area that allows enough space
for service personnel to perform typical maintenance or
repairs without removing unit from the ceiling. Horizontal
units are typically installed above a false ceiling or in a
ceiling plenum. Never install units in areas subject to
freezing or where humidity levels could cause cabinet
condensation (such as unconditioned spaces subject
to 100% outside air). Consideration should be given to
access for easy removal of the filter and access panels.
Provide sufficient room to make water, electrical, and
duct connection(s).
If the unit is located in a confined space, such as a closet,
provisions must be made for return air to freely enter the
space by means of a louvered door, etc. Any access panel
screws that would be difficult to remove after the unit
is installed should be removed prior to setting the unit.
Refer to Figure 3 for an illustration of a typical installation.
Refer to unit submittal data or engineering design guide
for dimensional data.
In limited side access installations, pre-removal of the
control box side mounting screws will allow control box
removal for future servicing.
Conform to the following guidelines when selecting
unit location:
1. Provide a hinged access door in concealed-spline
or plaster ceilings. Provide removable ceiling
tiles in T-bar or lay-in ceilings. Refer to horizontal
unit dimensions for specific series and model in
unit submittal data. Size the access opening to
accommodate the service technician during the
removal or replacement of the compressor and the
removal or installation of the unit itself.
2. Provide access to hanger brackets, water valves
and fittings. Provide screwdriver clearance to
access panels, discharge collars and all electrical
connections.
3. DO NOT obstruct the space beneath the unit with
piping, electrical cables and other items that prohibit
future removal of components or the unit itself.
4. Use a manual portable jack/lift to lift and support the
weight of the unit during installation and servicing.
The installation of water source heat pump units and all
associated components, parts and accessories which
make up the installation shall be in accordance with
the regulations of ALL authorities having jurisdiction
and MUST conform to all applicable codes. It is the
responsibility of the installing contractor to determine
and comply with ALL applicable codes and regulations.

8ClimateMaster Water-Source Heat Pumps
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility®Compact (TC) Series
Rev.: 02/04/13
Horizontal Installation
Figure 3: Typical Horizontal Unit Installation
Air Coil - To obtain maximum performance, the air coil
should be cleaned before start-up. A 10% solution of
dishwasher detergent and water is recommended for
both sides of the coil. A thorough water rinse should
follow. UV based anti-bacterial systems may damage
e-coated air coils.
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Notice! Installation Note - Ducted Return: Many
horizontal WSHPs are installed in a return air ceiling
plenum application (above ceiling). Vertical WSHPs are
commonly installed in a mechanical room with free return
(e.g. louvered door). Therefore, filter rails are the industry
standard and are included on ClimateMaster commercial
heat pumps for the purposes of holding the filter only.
For ducted return applications, the filter rail must be
removed and replaced with a duct flange or filter rack.
Canvas or flexible connectors should also be used to
minimize vibration between the unit and ductwork.

9
climatemaster.com
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tranquility®Compact (TC) Series
Rev.: 02/04/13
Field Conversion of Air Discharge
Water
Connection End
Return Air
Remove Screws
Water
Connection End
Return Air
Rotate
Move to Side
Side Discharge
Return Air
Water
Connection End
Discharge Air
Drain
Back Discharge
Replace Screws
Water
Connection End
Supply Duct
Return Air
Water
Connection End
Drain
Return Air
Discharge Air
Side Discharge
Back Discharge
Overview - Horizontal units can be field converted
between side (straight) and back (end) discharge using
the instructions below.
Note: It is not possible to field convert return air
between left or right return models due to the
necessity of refrigeration copper piping changes.
Preparation - It is best to field convert the unit on the
ground before hanging. If the unit is already hung it
should be taken down for the field conversion.
Side to Back Discharge Conversion
1. Place unit in well lit area. Remove the screws as shown
in Figure 4 to free top panel and discharge panel.
2. Lift out the access panel and set aside. Lift and rotate
the discharge panel to the other position as shown,
being careful with the blower wiring.
3. Check blower wire routing and connections for
tension or contact with sheet metal edges. Re-route if
necessary.
4. Check refrigerant tubing for contact with other
components.
5. Reinstall top panel and screws noting that the location
for some screws will have changed.
6. Manually spin the fan wheel to ensure that the wheel
is not rubbing or obstructed.
7. Replace access panels.
Back to Side Discharge Conversion - If the discharge is
changed from back to side, use above instruction noting
that illustrations will be reversed.
Left vs. Right Return - It is not possible to field convert
return air between left or right return models due to
the necessity of refrigeration copper piping changes.
However, the conversion process of side to back or
back to side discharge for either right or left return
configuration is the same. In some cases, it may be
possible to rotate the entire unit 180 degrees if the return
air connection needs to be on the opposite side. Note
that rotating the unit will move the piping to the other
end of the unit.
Figure 5: Right Return Side to Back
Figure 4: Left Return Side to Back

10 ClimateMaster Water-Source Heat Pumps
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility®Compact (TC) Series
Rev.: 02/04/13
Horizontal Installation
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* Some units include a painted drain connection.
Using a threaded pipe or similar device to clear
any excess paint accumulated inside this fitting
may ease final drain line installation.
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Figure 6: Horizontal Condensate Connection
CAUTION! Ensure condensate line is pitched toward drain
1/8 inch per ft [11mm per m] of run.
 CAUTION! 
Duct System Installation - Proper duct sizing and design
is critical to the performance of the unit. The duct system
should be designed to allow adequate and even airflow
through the unit during operation. Air flow through
the unit MUST be at or above the minimum stated
airflow for the unit to avoid equipment damage. Duct
systems should be designed for quiet operation. Refer
to Figure 3 for horizontal duct system details or Figure
8 for vertical duct system details. A flexible connector
is recommended for both discharge and return air duct
connections on metal duct systems to eliminate the
transfer of vibration to the duct system. To maximize
sound attenuation of the unit blower, the supply and
return plenums should include internal fiberglass duct
liner or be constructed from ductboard for the first few
feet. Application of the unit to uninsulated ductwork in
an unconditioned space is not recommended, as the
unit’s performance may be adversely affected.
At least one 90° elbow should be included in the supply
duct to reduce air noise. If air noise or excessive air flow
is a problem, the blower speed can be changed. For
airflow charts, consult submittal data for the series and
model of the specific unit.
If the unit is connected to existing ductwork, a previous
check should have been made to ensure that the
ductwork has the capacity to handle the airflow required
for the unit. If ducting is too small, as in the replacement
of a heating only system, larger ductwork should be
installed. All existing ductwork should be checked for
leaks and repaired as necessary.
Condensate Piping
e 0/0/3
Duct S
y
stem Installatio
n
Condensate Piping - Horizontal Units - A condensate
drain line must be installed and pitched away for the unit
to allow for proper drainage. This connection must meet
all local plumbing/building codes.
Pitch the unit toward the drain as shown in Figure 2 to
improve the condensate drainage. On small units (less
than 2.5 tons/8.8 kW), ensure that unit pitch does not
cause condensate leaks inside the cabinet.
Install condensate trap at each unit with the top of
the trap positioned below the unit condensate drain
connection as shown in Figure 6. Design the depth of
the trap (water-seal) based upon the amount of ESP
capability of the blower (where 2 inches [51mm] of ESP
capability requires 2 inches [51mm] of trap depth).
As a general rule, 1-1/2 inch [38mm] trap depth is the
minimum.
Each unit must be installed with its own individual trap
and connection to the condensate line (main) or riser.
Provide a means to flush or blow out the condensate line.
DO NOT install units with a common trap and/or vent.
Always vent the condensate line when dirt or air
can collect in the line or a long horizontal drain line
is required. Also vent when large units are working
against higher external static pressure than other units
connected to the same condensate main since this may
cause poor drainage for all units on the line. WHEN A
VENT IS INSTALLED IN THE DRAIN LINE, IT MUST BE
LOCATED AFTER THE TRAP IN THE DIRECTION OF
THE CONDENSATE FLOW.

11
climatemaster.com
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tranquility®Compact (TC) Series
Rev.: 02/04/13
Flexible canvas duct
connector to reduce
noise and vibration
Use turning vanes in
supply transition
Internally insulate return
transition duct to reduce
noise
Rounded return
transition
Rev.: 6/2/09S
Internally insulate supply
duct for the first 4’ (1.2m)
each way to reduce noise
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Vertical Installation
Figure 7: Vertical Unit Mounting
Figure 8: Typical Vertical Unit Installation Using
Ducted Return Air
Vertical Unit Location - Units are not designed for
outdoor installation. Locate the unit in an INDOOR
area that allows enough space for service personnel to
perform typical maintenance or repairs without removing
unit from the mechanical room/closet. Vertical units
are typically installed in a mechanical room or closet.
Never install units in areas subject to freezing or where
humidity levels could cause cabinet condensation (such
as unconditioned spaces subject to 100% outside air).
Consideration should be given to access for easy removal
of the filter and access panels. Provide sufficient room to
make water, electrical, and duct connection(s).
If the unit is located in a confined space, such as a closet,
provisions must be made for return air to freely enter
the space by means of a louvered door, etc. Any access
panel screws that would be difficult to remove after
the unit is installed should be removed prior to setting
the unit. Refer to Figures 7 and 8 for typical installation
illustrations. Refer to unit submittal data or engineering
design guide for dimensional data.
1. Install the unit on a piece of rubber, neoprene orother
mounting pad material for sound isolation. The pad
should be at least 3/8” [10mm] to 1/2” [13mm] in
thickness. Extend the pad beyond all four edges of
the unit.
2. Provide adequate clearance for filter replacement
and drain pan cleaning. Do not block filter access
with piping, conduit or other materials. Refer to
unit submittal data or engineering design guide for
dimensional data.
3. Provide access for fan and fan motor maintenance
and for servicing the compressor and coils without
removing the unit.
4. Provide an unobstructed path to the unit within the
closet or mechanical room. Space should be sufficient
to allow removal of the unit, if necessary.
5. In limited side access installations, pre-removal of the
control box side mounting screws will allow control
box removal for future servicing.
6. Provide access to water valves and fittings and
screwdriver access to the unit side panels, discharge
collar and all electrical connections.
Vertical Unit L
o
cati
on
Notice! Installation Note - Ducted Return: Many
horizontal WSHPs are installed in a return air ceiling
plenum application (above ceiling). Vertical WSHPs are
commonly installed in a mechanical room with free return
(e.g. louvered door). Therefore, filter rails are the industry
standard and are included on ClimateMaster commercial
heat pumps for the purposes of holding the filter only. For
ducted return applications, the filter rail must be removed
and replaced with a duct flange or filter rack. Canvas
or flexible connectors should also be used to minimize
vibration between the unit and ductwork.

12 ClimateMaster Water-Source Heat Pumps
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility®Compact (TC) Series
Rev.: 02/04/13
Vertical Installation
Sound Attenuation for Vertical Units - Sound
attenuation is achieved by enclosing the unit within a
small mechanical room or a closet. Additional measures
for sound control include the following:
1. Mount the unit so that the return air inlet is 90° to
the return air grille. Refer to Figure 9. Install a sound
baffle as illustrated to reduce line-of sight sound
transmitted through return air grilles.
2. Mount the unit on a rubber or neoprene isolation
pad to minimize vibration transmission to the
building structure.
Return
Air Inlet
Figure 9: Vertical Sound Attenuation
Condensate Piping for Vertical Units - A condensate
line must be installed and pitched away from the unit to
allow for proper drainage. This connection must meet
all local plumbing/building codes. Vertical units utilize
a condensate hose inside the cabinet as a trapping
loop; therefore an external trap is not necessary. Figure
10a shows typical condensate connections. Figure 10b
illustrates the internal trap for a typical vertical heat
pump. Each unit must be installed with its own individual
vent (where necessary) and a means to flush or blow
out the condensate drain line. Do not install units with a
common trap and/or vent.
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ರ
ರ
* Some units include a painted drain connection.
Using a threaded pipe or similar device to clear
any excess paint accumulated inside this fitting
may ease final drain line installation.
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Figure 10a: Vertical Condensate Drain
Figure 10b: Vertical Internal Condensate Trap
Notice! Units with clear plastic drain lines should have
regular maintenance (as required) to avoid buildup of
debris, especially in new construction.

13
climatemaster.com
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tranquility®Compact (TC) Series
Rev.: 02/04/13
Piping Installation
CAUTION! Corrosive system water requires corrosion
resistant fittings and hoses, and may require water treatment.
Table 1: Metal Hose Minimum Bend Radii
Hose Diameter Minimum Bend Radii
1/2" [12.7mm] 2-1/2" [6.4cm]
3/4" [19.1mm] 4" [10.2cm]
1" [25.4mm] 5-1/2" [14cm]
1-1/4" [31.8mm] 6-3/4" [17.1cm]
CAUTION! Do not bend or kink supply lines or hoses.
NOTICE! Do not allow hoses to rest against structural
building components. Compressor vibration may
be transmitted through the hoses to the structure,
causing unnecessary noise complaints.
Figure 11: Supply/Return Hose Kit
 CAUTION! 
 CAUTION! 
 CAUTION! 
Rib Crimped
Length
(2 ft [0.6m] Length Standard)
Swivel
Brass
Fitting
Brass
Fitting
MPT
MPT
CAUTION! Piping must comply with all applicable codes.
Installation of Supply and Return Piping
Follow these piping guidelines.
1. Install a drain valve at the base of each supply and
return riser to facilitate system flushing.
2. Install shut-off / balancing valves and unions at each
unit to permit unit removal for servicing.
3. Place strainers at the inlet of each system circulating
pump.
4. Select the proper hose length to allow slack between
connection points. Hoses may vary in length by +2%
to -4% under pressure.
5. Refer to Table 1. Do not exceed the minimum bend
radius for the hose selected. Exceeding the minimum
bend radius may cause the hose to collapse, which
reduces water flow rate. Install an angle adapter to
avoid sharp bends in the hose when the radius falls
below the required minimum.
Insulation is not required on loop water piping except
where the piping runs through unheated areas, outside
the building or when the loop water temperature is
below the minimum expected dew point of the pipe
ambient conditions. Insulation is required if loop water
temperature drops below the dew point (insulation is
required for ground loop applications in most climates).
Pipe joint compound is not necessary when Teflon®
thread tape is pre-applied to hose assemblies or when
flared-end connections are used. If pipe joint compound
is preferred, use compound only in small amounts on
the external pipe threads of the fitting adapters. Prevent
sealant from reaching the flared surfaces of the joint.
Note: When antifreeze is used in the loop, ensure that
it is compatible with the Teflon®tape or pipe joint com-
pound that is applied.
Maximum allowable torque for brass fittings is 30 ft-lbs
[41 N-m]. If a torque wrench is not available, tighten
finger-tight plus one quarter turn. Tighten steel fittings
as necessary.
Optional pressure-rated hose assemblies designed
specifically for use with ClimateMaster units are available.
Similar hoses can be obtained from alternate suppliers.
Supply and return hoses are fitted with swivel-joint fittings
at one end to prevent kinking during installation.
A backup wrench is required when tightening water
connections on TC Series units to prevent water line
damage.
Refer to Figure 11 for an illustration of a typical supply/
return hose kit. Adapters secure hose assemblies to the
unit and risers. Install hose assemblies properly and check
regularly to avoid system failure and reduced service life.
WARNING! Polyolester Oil, commonly known as POE oil, is
a synthetic oil used in many refrigeration systems including
those with HFC-410A refrigerant. POE oil, if it ever comes
in contact with PVC or CPVS piping, may cause failure of
the PVC/CPVC. PVC/CPVC piping should never be used
as supply or return water piping with water source heat
pump products containing HFC-410A as system failures and
property damage may result.
 WARNING! 

14 ClimateMaster Water-Source Heat Pumps
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility®Compact (TC) Series
Rev.: 02/04/13
Water-Loop Heat Pump Applications
Commercial Water Loop Applications
Commercial systems typically include a number of
units connected to a common piping system. Any unit
plumbing maintenance work can introduce air into the
piping system; therefore air elimination equipment
is a major portion of the mechanical room plumbing.
Consideration should be given to insulating the
piping surfaces to avoid condensation. ClimateMaster
recommends unit insulation any time the water
temperature is expected to be below 60ºF (15.6ºC). Metal
to plastic threaded joints should never be used due to
their tendency to leak over time.
Tefl on®tape thread sealant is recommended to
minimize internal fouling of the heat exchanger. Do
not over tighten connections and route piping so as
not to interfere with service or maintenance access.
Hose kits are available from ClimateMaster in different
configurations as shown in Figure 12 for connection
between the unit and the piping system. Depending
upon selection, hose kits may include shut off valves,
P/T plugs for performance measurement, high pressure
stainless steel braided hose, “Y” type strainer with blow
down valve, and/or “J” type swivel connection. Balancing
valves and an external low pressure drop solenoid valve
for use in variable speed pumping systems may also be
included in the hose kit.
The piping system should be flushed to remove dirt,
piping chips, and other foreign material prior to
operation (see “Piping System Cleaning and Flushing
Procedures” in this manual). The flow rate is usually set
between 2.25 and 3.5 gpm per ton [2.9 and 4.5 l/m per
kW] of cooling capacity. ClimateMaster recommends 3
gpm per ton [3.9 l/m per kW] for most applications of
water loop heat pumps. To ensure proper maintenance
and servicing, P/T ports are imperative for temperature
and flow verification, as well as performance checks.
Water loop heat pump (cooling tower/boiler) systems
typically utilize a common loop, maintained between
60 - 90°F [16 - 32°C]. The use of a closed circuit evaporative
cooling tower with a secondary heat exchanger between
the tower and the water loop is recommended. If an
open type cooling tower is used continuously, chemical
treatment and filtering will be necessary.
Figure 12: Typical Water-Loop Application
3/8" [10mm] threaded rods
(by others)
Low Water Temperature Cutout Setting - CXM Control
When antifreeze is selected, the FP1 jumper (JW3) should be clipped to select the low temperature (antifreeze 10.0°F
[-12.2°C]) setpoint and avoid nuisance faults (see “Low Water Temperature Cutout Selection” in this manual). Note:
Low water temperature operation requires extended range equipment.

15
climatemaster.com
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tranquility®Compact (TC) Series
Rev.: 02/04/13
Ground-Loop Heat Pump Applications
Pre-Installation
Prior to installation, locate and mark all existing
underground utilities, piping, etc. Install loops for new
construction before sidewalks, patios, driveways, and other
construction has begun. During construction, accurately
mark all ground loop piping on the plot plan as an aid in
avoiding potential future damage to the installation.
Piping Installation
The typical closed loop ground source system is shown in
Figure 13. All earth loop piping materials should be limited
to polyethylene fusion only for in-ground sections of the
loop. Galvanized or steel fittings should not be used at any
time due to their tendency to corrode. All plastic to metal
threaded fittings should be avoided due to their potential
to leak in earth coupled applications. A flanged fitting
should be substituted. P/T plugs should be used so that
flow can be measured using the pressure drop of the unit
heat exchanger.
Earth loop temperatures can range between 25 and 110°F
[-4 to 43°C]. Flow rates between 2.25 and 3 gpm [2.41 to
3.23 l/m per kW] of cooling capacity is recommended in
these applications.
Test individual horizontal loop circuits before backfilling.
Test vertical U-bends and pond loop assemblies prior to
installation. Pressures of at least 100 psi [689 kPa] should
be used when testing. Do not exceed the pipe pressure
rating. Test entire system when all loops are assembled.
Flushing the Earth Loop
Upon completion of system installation and testing, flush
the system to remove all foreign objects and purge to
remove all air.
Antifreeze
I n areas where minimum entering loop temperatures
drop below 40°F [5°C] or where piping will be routed
through areas subject to freezing, antifreeze is required.
Alcohols and glycols are commonly used as antifreeze;
however your local sales office should be consulted to
determine the antifreeze best suited to your area. Freeze
protection should be maintained to 15°F [9°C] below
the lowest expected entering loop temperature. For
example, if 30°F [-1°C] is the minimum expected entering
loop temperature, the leaving loop temperature would
be 22 to 25°F [-6 to -4°C] and freeze protection should be
at 15°F [-10°C]. Calculation is as follows:
30°F - 15°F = 15°F [-1°C - 9°C = -10°C].
All alcohols should be premixed and pumped from
a reservoir outside of the building when possible or
introduced under the water level to prevent fumes.
Calculate the total volume of fluid in the piping system.
Then use the percentage by volume shown in table
2 for the amount of antifreeze needed. Antifreeze
concentration should be checked from a well mixed
sample using a hydrometer to measure specific gravity.
CAUTION! The following instructions represent industry
accepted installation practices for closed loop earth coupled
heat pump systems. Instructions are provided to assist the
contractor in installing trouble free ground loops. These
instructions are recommendations only. State/provincial
and local codes MUST be followed and installation MUST
conform to ALL applicable codes. It is the responsibility of
the installing contractor to determine and comply with ALL
applicable codes and regulations.
Table 2: Antifreeze Percentages by Volume
Low Water Temperature Cutout Setting - CXM Control
When antifreeze is selected, the FP1 jumper (JW3) should
be clipped to select the low temperature (antifreeze
10.0°F [-12.2°C]) setpoint and avoid nuisance faults (see
“Low Water Temperature Cutout Selection” in this
manual). Note: Low water temperature operation
requires extended range equipment.
 CAUTION! 
 CAUTION! 
Type Minimum Temperature for Low Temperature Protection
10°F [-12.2°C] 15°F [-9.4°C] 20°F [-6.7°C] 25°F [-3.9°C]
Methanol
100% USP food grade Propylene Glycol
Ethanol*
25%
38%
29%
21%
25%
25%
16%
22%
20%
10%
15%
14%
* Must not be denatured with any petroleum based product
CAUTION! Ground loop applications require extended range
equipment and optional refrigerant/water circuit insulation.

16 ClimateMaster Water-Source Heat Pumps
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility®Compact (TC) Series
Rev.: 02/04/13
Ground-Loop Heat Pump Applications
Figure 13: Typical Ground-Loop Application
High and
Low Voltage
Knockouts
Vibration Isolation Pad
To Thermostat

17
climatemaster.com
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tranquility®Compact (TC) Series
Rev.: 02/04/13
Ground-Water Heat Pump Applications
Open Loop - Ground Water Systems - Typical open
loop piping is shown in Figure 14. Shut off valves should
be included for ease of servicing. Boiler drains or other
valves should be “tee’d” into the lines to allow acid
flushing of the heat exchanger. Shut off valves should be
positioned to allow flow through the coax via the boiler
drains without allowing flow into the piping system.
P/T plugs should be used so that pressure drop and
temperature can be measured. Supply and return water
piping materials should be limited to copper, PE, or similar
material. PVC or CPVC should never be used as they are
incompatible with the POE oils used in HFC-410A products
and piping system failure and property damage may result.
Water quantity should be plentiful and of good quality.
Consult table 3 for water quality guidelines. The unit can
be ordered with either a copper or cupro-nickel water
heat exchanger. Consult Table 3 for recommendations.
Copper is recommended for closed loop systems and
open loop ground water systems that are not high
in mineral content or corrosiveness. In conditions
anticipating heavy scale formation or in brackish water, a
cupro-nickel heat exchanger is recommended. In ground
water situations where scaling could be heavy or where
biological growth such as iron bacteria will be present, an
open loop system is not recommended. Heat exchanger
coils may over time lose heat exchange capabilities due
to build up of mineral deposits. Heat exchangers must
only be serviced by a qualified technician, as acid and
special pumping equipment is required. Desuperheater
coils can likewise become scaled and possibly plugged.
In areas with extremely hard water, the owner should be
informed that the heat exchanger may require occasional
acid flushing. In some cases, the desuperheater
option should not be recommended due to hard water
conditions and additional maintenance required.
WARNING! Polyolester Oil, commonly known as POE oil, is
a synthetic oil used in many refrigeration systems including
those with HFC-410A refrigerant. POE oil, if it ever comes
in contact with PVC or CPVS piping, may cause failure of
the PVC/CPVC. PVC/CPVC piping should never be used
as supply or return water piping with water source heat
pump products containing HFC-410A as system failures and
property damage may result.
 WARNING! 
Water Quality Standards - Table 3 should be consulted
for water quality requirements. Scaling potential should
be assessed using the pH/Calcium hardness method.
If the pH <7.5 and the calcium hardness is less than
100 ppm, scaling potential is low. If this method yields
numbers out of range of those listed, the Ryznar Stability
and Langelier Saturation indecies should be calculated.
Use the appropriate scaling surface temperature for
the application, 150°F [66°C] for direct use (well water/
open loop); 90°F [32°F] for indirect use. A monitoring
plan should be implemented in these probable scaling
situations. Other water quality issues such as iron fouling,
corrosion prevention and erosion and clogging should be
referenced in Table 3.
Expansion Tank and Pump - Use a closed, bladder-type
expansion tank to minimize mineral formation due to
air exposure. The expansion tank should be sized to
provide at least one minute continuous run time of the
pump using its drawdown capacity rating to prevent
pump short cycling. Discharge water from the unit is not
contaminated in any manner and can be disposed of in
various ways, depending on local building codes (e.g.
recharge well, storm sewer, drain field, adjacent stream
or pond, etc.). Most local codes forbid the use of sanitary
sewer for disposal. Consult your local building and
zoning department to assure compliance in your area.
Water Control Valve - Note the placement of the
water control valve in Figure 14. Always maintain water
pressure in the heat exchanger by placing the water
control valve(s) on the discharge line to prevent mineral
precipitation during the off-cycle. Pilot operated slow
closing valves are recommended to reduce water
hammer. If water hammer persists, a mini-expansion
tank can be mounted on the piping to help absorb the
excess hammer shock. Ensure that the total ‘VA’ draw
of the valve can be supplied by the unit transformer.
For instance, a slow closing valve can draw up to 35VA.
This can overload smaller 40 or 50 VA transformers
depending on the other controls in the circuit. A typical
pilot operated solenoid valve draws approximately 15VA
(see Figure 19). Note the special wiring diagrams for slow
closing valves (Figures 20 & 21).

18 ClimateMaster Water-Source Heat Pumps
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility®Compact (TC) Series
Rev.: 02/04/13
Figure 14: Typical Open Loop/Well Application
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Ground-Water Heat Pump Applications
Flow Regulation - Flow regulation can be accomplished
by two methods. One method of flow regulation involves
simply adjusting the ball valve or water control valve on
the discharge line. Measure the pressure drop through
the unit heat exchanger, and determine flow rate from
Tables 8a through 8e. Since the pressure is constantly
varying, two pressure gauges may be needed. Adjust the
valve until the desired flow of 1.5 to 2 gpm per ton [2.0
to 2.6 l/m per kW] is achieved. A second method of flow
control requires a flow control device mounted on the
outlet of the water control valve. The device is typically
a brass fitting with an orifice of rubber or plastic material
that is designed to allow a specified flow rate. On
occasion, flow control devices may produce velocity noise
that can be reduced by applying some back pressure
from the ball valve located on the discharge line. Slightly
closing the valve will spread the pressure drop over both
devices, lessening the velocity noise.
Note: When EWT is below 50°F [10°C], 2 gpm per ton
(2.6 l/m per kW) is required.
Water Coil Low Temperature Limit Setting - For all
open loop systems the 30°F [-1.1°C] FP1 setting (factory
setting-water) should be used to avoid freeze damage to
the unit. See “Low Water Temperature Cutout Selection”
in this manual for details on the low limit setting.

19
climatemaster.com
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tranquility®Compact (TC) Series
Rev.: 02/04/13
Water Quality Standards
Table 3: Water Quality Standards
Water Quality
Parameter
HX
Material
Closed
Recirculating Open Loop and Recirculating Well
Scaling Potential - Primary Measurement
pH/Calcium Hardness All -pH < 7.5 and Ca Hardness <100ppm
Method
Index Limits for Probable Scaling Situations - (Operation outside these limits is not recommended)
Ryznar All - 6.0 - 7.5
Stability Index If >7.5 minimize steel pipe use.
Langelier All --0.5 to +0.5
Saturation Index If <-0.5 minimize steel pipe use. Based upon 66°C HWG and
Direct well, 29°C Indirect Well HX
Iron Fouling
Iron Fe 2+ (Ferrous) All -<0.2 ppm (Ferrous)
(Bacterial Iron potential) If Fe2+
(ferrous)>0.2 ppm with pH 6 - 8, O2<5 ppm check for iron bacteria.
Iron Fouling All -<0.5 ppm of Oxygen
Above this level deposition will occur .
Corrosion Prevention
pH All
6 - 8.5 6 - 8.5
Monitor/treat as
needed Minimize steel pipe below 7 and no open tanks with pH <8
Hydrogen Sulfide (H2S) All
- <0.5 ppm
At H2S>0.2 ppm, avoid use of copper and copper nickel piping or HX's.
Rotten egg smell appears at 0.5 ppm level.
Copper alloy (bronze or brass) cast components are OK to <0.5 ppm.
Ammonia ion as hydroxide, chloride,
nitrate and sulfate compounds All -<0.5 ppm
Maximum
Maximum Allowable at maximum water temperature.
Chloride Levels
10$C24$C38
C
Copper
Cupronickel
-<20ppm NR NR
-<150 ppm NR NR
304 SS-<400 ppm <250 ppm <150 ppm
316 SS-<1000 ppm <550 ppm < 375 ppm
Titanium ->1000 ppm >550 ppm >375 ppm
Erosion and Clogging
Particulate Size and
Erosion
All
<10 ppm of particles
and a maximum
velocity of 1.8 m/s
Filtered for maximum
841 micron [0.84 mm,
20 mesh] size.
<10 ppm (<1 ppm "sandfree” for reinjection) of particles and a maximum
velocity of 1.8 m/s. Filtered for maximum 841 micron 0.84 mm,
20 mesh] size. Any particulate that is not removed can potentially
clog components.
Notes:
Rev.: 3/22/2012
15Application not recommended.
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&ORVHG5HFLUFXODWLQJV\VWHPLVLGHQWLILHGE\Dclosed pressurized piping system.
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Above the given limits, scaling is likely to occur. Scaling indexes should be calculated using the limits below
Scaling indexes should be calculated at 66°C for direct use and HWG applications, and at 32°C for indirect HX use.
A monitoring plan should be implemented.
The ClimateMaster Water Quality Table provides water quality requirements for ClimateMaster coaxial heat exchangers. When water properties are outside of those
requirements, an external secondary heat exchanger must be used to isolate the heat pump heat exchanger from the unsuitable water. Failure to do so will void the
warranty for the coaxial heat exchanger.

20 ClimateMaster Water-Source Heat Pumps
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility®Compact (TC) Series
Rev.: 02/04/13
Electrical - Line Voltage
Electrical - Line Voltage - All field installed wiring,
including electrical ground, must comply with the
National Electrical Code as well as all applicable local
codes. Refer to the unit electrical data for fuse sizes.
Consult wiring diagram for field connections that must
be made by the installing (or electrical) contractor. All
final electrical connections must be made with a length
of flexible conduit to minimize vibration and sound
transmission to the building.
General Line Voltage Wiring - Be sure the available
power is the same voltage and phase shown on the unit
serial plate. Line and low voltage wiring must be done
in accordance with local codes or the National Electric
Code, whichever is applicable.
WARNING! To avoid possible injury or death due to electrical
shock, open the power supply disconnect switch and secure
it in an open position during installation.
CAUTION! Use only copper conductors for field installed
electrical wiring. Unit terminals are not designed to accept
other types of conductors.
 WARNING! 
 CAUTION! 
Transformer - All 208/230 voltage units are factory wired
for 208 volt. If supply voltage is 230 volt, installer must
rewire transformer. See wire diagram for connections.