Nibe CLIMATEMASTER TRANQUILITY 16 Series Owner's manual

Tranquility® 16
(TC)Series
Commercial Horizontal
& Vertical Packaged
Water-Source Heat
Pumps
50Hz-HFC-410A
InstAllAtIon, operAtIon
& MAIntenAnCe
97B0075N02
Revised: 24 January, 2023
Table of Contents
Model Nomenclature – General Overview 3
General Information 4
Unit Physical Data 6
Horizontal Installation 7
Field Conversion of Air Discharge 10
Horizontal Installation 11
Duct System Installation 12
Vertical Installation 13
Piping Installation 16
Water-Loop Heat Pump Applications 17
Ground-Loop Heat Pump Applications 18
Ground-Water Heat Pump Applications 20
Water Quality Standards 22
Electrical - Line Voltage 23
Electrical Data 24
Electrical - Power Wiring 25
Electrical - Power & Low Voltage Wiring 26
Electrical - Low Voltage Wiring 27
Blower Performance Data 28
ECM Motor – Blower Performance Data 30
Electrical - Thermostat Wiring 33
TC-Horizontal – Dimensional Data 34
TC-Vertical Upow – Dimensional Data 36
TC Series Wiring Diagram Matrix 38
Controls – CXM2 and DXM2.5 39
Operating Limits 40
Piping System Cleaning and Flushing 41
Unit Starting and Operating Conditions 42
Unit Start-Up Procedure 43
Preventive Maintenance 45
Functional Troubleshooting 46
Performance Troubleshooting 47
Functional Troubleshooting - S-I Units 48
Warranty 49
Revision History 52

CLIMATEMASTER WATER-SOURCE HEAT PUMPS
2ClimateMaster Water-Source Heat Pumps
Tranquility 16 (TC) Series
Rev.: 24 January, 2023
This Page Intentionally Left Blank

THE SMART SOLUTION FOR ENERGY EFFICIENCY
3
climatemaster.com
Tranquility 16 (TC) Series
Rev.: 24 January, 2023
TC H A0 3 6 FU 3 0 A L B S
1 2 3 4 5 6 7
8
9 10 11 12 13 14 15
TC= TRANQUILITY®COMPACT(HFC-410A)
MODELTYPE
H = HORIZONTAL
CONFIGURATION
V = VERTICAL
UNIT SIZE
006 - V
009 - V
012 -V
015 - V
018 - V
024 - V
REVISION LEVEL
A= CURRENTREVISION FOR ALLSIZES
VOLTAGE
F = CXM2
CONTROLS
G = DXM2.5
T= CXM2 w/MPC
U = DXM2.5 w/MPC
1 = EXTENDED RANGE
CABINET INSULATION
2 = EXTENDED RANGE w/ULTRAQUIET
0 = NONE
FUTURE USE
A= Copper Water Coil w/Coated Air Coil
HEAT EXCHANGER OPTIONS
C = Copper Water Coil w/Non-Coated Air Coil
P= LEFTRETURN
RETURN AIR OPTIONS
C = RIGHTRETURN
B = BACK DISCHARGE, HORIZONTAL ONLY
SUPPLY AIR OPTIONS
Y= BACK DISCHARGE, HIGH STATIC
HORIZONTAL 015 - 060
T= TOP DISCHARGE, VERTICALONLY
V = TOP DISCHARGE, HIGH STATIC
VERTICAL015 - 060
S = STRAIGHTDISCHARGE, HORIZONTAL ONLY
Z = STRAIGHTDISCHARGE, HIGH STATIC
HORIZONTAL 015 - 060
S = STANDARD
J = Cupro-nickel Water Coil w/Coated Air Coil
N = Cupro-nickel Water Coil w/Non-Coated Air Coil
3 = STANDARD RANGE
4 = STANDARD RANGE w/ULTRAQUIET
S = LEFTRETURN S.S. DRAIN PAN
T = RIGHTRETURN S.S. DRAIN PAN
Z = FRONTRETURN S.S. DRAIN PAN,
VERTICAL009-030
{
CE
APPROVED
030 - V, U
036 - V, U
042 - U
048 - U
060 - U
V = 220/240/50/1
U = 380/420/50/3
Model Nomenclature – General Overview

CLIMATEMASTER WATER-SOURCE HEAT PUMPS
4ClimateMaster Water-Source Heat Pumps
Tranquility 16 (TC) Series
Rev.: 24 January, 2023
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.
⚠
WARNING!
⚠
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
led within 15 days, the freight company can deny the
claim without recourse. Note: It is the responsibility of
the purchaser to le all necessary claims with the carrier.
Notify your equipment supplier of all damage within
fteen (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.
Examine all pipes, ttings, and valves before installing
any of the system components. Remove any dirt or
debris found in or on these components.
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 prociency requirements.
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
lters can quickly become clogged with construction dirt
and debris, which may cause system damage and void
product warranty.
⚠
WARNING!
⚠
⚠
WARNING!
⚠
⚠
WARNING!
⚠
⚠
CAUTION!
⚠
WARNING! The EarthPure®Application and Service
Manual should be read and understood before attempting
to service refrigerant circuits with HFC-410A.
WARNING! This appliance is not intended for use by
persons (including children) with reduced physical,
sensory, or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision or
instruction concerning use of the appliance by a person
responsible for their safety.
Saftey
Warnings, cautions, and notices appear throught this
manual. Read these items carefully before attempting
any installation, service, or troubeshooting 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 an immediate hazardous situation,
which if not avoided will 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 with product or property
damage.
NOTICE: Notication of installation, operation, or
maintenance information, which is important, but
which is not hazard-related.
General Information

THE SMART SOLUTION FOR ENERGY EFFICIENCY
5
climatemaster.com
Tranquility 16 (TC) Series
Rev.: 24 January, 2023
CAUTION! All three phase scroll compressors must have
direction of rotation veried at start-up. Verication 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
signicantly reduce performance, reliability, and service
life. Always move and store units in an upright position.
Tilting units on their sides will cause equipment damage.
⚠
CAUTION!
⚠
⚠
CAUTION!
⚠
⚠
CAUTION!
⚠
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.
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 congurations 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 nished.
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. Some airow patterns are eld convertible
(horizontal units only). Locate the airow conversion
section of this IOM.
7. Locate and verify any hot water generator (HWG),
hanger, or other accessory kit located in the
compressor section or blower section.
⚠ WARNING! ⚠
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 the polymer drain pan, may cause the drain pan
to leak. The polymer drain pan should never come in contact
with POE oil as system failures and property damage may
result.
General Information, Cont’d.

CLIMATEMASTER WATER-SOURCE HEAT PUMPS
6ClimateMaster Water-Source Heat Pumps
Tranquility 16 (TC) Series
Rev.: 24 January, 2023
TC Series 006 009 012 015 018 024 030 036 042 048 060
Compressor (1 Each) Rotary Scroll
Factory Charge HFC-410A - kg 0.54 0.52 0.65 0.99 1.22 1.13 1.36 1.42 1.98 2.10 2.32
ECM Fan Motor & Blower
Fan Motor (Watts) 186 249 373 746
Blower Wheel Size (Dia x W) mm 127 x 127 152 x 127 229 x 178 229 x 203 254 x 254 305 x 254
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
Fan Motor (Watts) 19 75 53 149 249 249
Blower Wheel Size (Dia x W) mm 127 x 127 152 x 127 229 x 178 229 x 178 229 x 203 254 x 254 305 x 254
Water Connection Size
FPT 1/2" 3/4" 1"
Coax Volume (liters) 0.29 0.37 0.50 0.68 0.79 0.68 1.13 1.83 1.54 2.32
Vertical
Air Coil Dimensions (H x W) mm 254 x 381 3Row 508 x 438 3Row 610 x 553 3Row 610 x 718 3Row
Filter Standard - 25.4mm
Throwaway mm 254 x 457 508 x 508 610 x 610 457 x 610 356 x 610
Weight - Operating kg 47 48 52 70 72 86 90 92 99 120 126
Weight - Packaged kg 51 52 56 72 74 88 92 95 102 123 130
Horizontal
Air Coil Dimensions (H x W) mm 254 x 381 3Row 406 x 559 3Row 508 x 635 3Row
Filter Standard - 25.4mm
Throwaway mm 254 x 457 406 x 635 457 x 635 356 x 508 (2) 356 x 508 508 x 610
Weight - Operating kg 47 48 52 70 72 79 83 92 99 120 126
Weight - Packaged kg 51 52 56 72 74 81 85 95 102 123 130
Notes:
All units have dual isolation compressor mounts for quiet operation, thermal expansion valves for refrigerant metering, and 22.2mm & 28.6mm electrical knock-
outs to accommodate eld wiring.
FPT - Female Pipe Thread
Condensate Drain Connection is rubber coupling that couples to 3/4” schedule 40/80 PVC.
Unit Maximum Water Working Pressure
Options Max Pressure kPa
Base Unit 3447
Tranquility®16 (TC)Series (50 Hz)
Unit Physical Data

THE SMART SOLUTION FOR ENERGY EFFICIENCY
7
climatemaster.com
Tranquility 16 (TC) Series
Rev.: 24 January, 2023
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 lter and access panels.
Provide sufcient room to make water, electrical, and
duct connection(s).
If the unit is located in a conned 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 difcult 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.
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 specic series and model in
unit submittal data. Size the access opening to
accommodate the service technician during the
removal or replacement of the compressor, control, or
blower assembly.
2. Provide access to hanger brackets, water valves
and ttings. 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.
Mounting Horizontal Units
Horizontal units have 4 hanger brackets partially
attached at the factory, one at each corner. Enclosed
within the unit there is a hanger kit hardware bag
containing vibration isolation grommets, washers,
screws and a hanger installation instruction page. One
additional screw from the hardware bag must be added
to each hanger bracket before unit installation.Tighten
each screw to 75 in-lbs (8.5 Nm). See Figure 1. Refer
to the hanger installation instruction page contained
in the hardware bag for details of nal hanger bracket
attachment and unit suspension. See Figure 1a.
Use four (4) eld supplied threaded rods and factory
provided vibration isolators to suspend the unit. Safely
lift the unit into position supporting the bottom of the
unit. Ensure the top of the unit is not in contact with any
external objects. Connect the top end of the 4 all-thread
rods, slide rods through the brackets and grommet
then assemble washers and double nuts at each rod.
Ensure that the unit is approximately level and that the
threaded rod extends past the nuts.
Pitch the unit toward the drain as shown in Figure 2 to
improve the condensate drainage. On small units (less
than 8.8 kW) ensure that unit pitch does not cause
condensate leaks inside the cabinet.
VIEW WATER CONNECTION END
FULLY ASSEMBLED
(Unit pictured for hanger bracket reference)
(Water hardware may vary per unit model)
ADD
BEFORE
HANGING
Figure 1a:
Figure 1: Hanger Bracket
Horizontal Installation
SCALE 1.000
DETAIL A

CLIMATEMASTER WATER-SOURCE HEAT PUMPS
8ClimateMaster Water-Source Heat Pumps
Tranquility 16 (TC) Series
Rev.: 24 January, 2023
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
coated air coils.
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, lter rails are the
industry standard and are included on ClimateMaster
commercial heat pumps for the purposes of holding the
lter only. For ducted return applications, the lter rail
must be removed and replaced with a duct ange or
lter frame. Canvas or exible connectors should also
be used to minimize vibration between the unit and
ductwork.
Figure 3: Typical Horizontal Unit Installation
(by others)
Thermostat
Wiring
Water In
Water Out
Optional Balancing Valve
Stainless steel braid hose
with integral "J" swivel
Building
Loop
Power Wiring
Return Air
Supply Air
Unit Hanger
Ball Valve with optional
integral P/T plug
3/8" [10mm] threaded rods
Unit Power
Flexible Duct
Connector
Insulated supply duct with
at least one 90 deg elbow
to reduce noise Unit Power
Disconnect
(by others)
Optional Low Pressure Drop Water
Control Valve
(can be internally mounted
on some models)
Figure 2: Horizontal Unit Pitch
6.4mm pitch
for drainage
Drain Connection
Horizontal Installation, Cont’d.

THE SMART SOLUTION FOR ENERGY EFFICIENCY
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climatemaster.com
Tranquility 16 (TC) Series
Rev.: 24 January, 2023
ASPASPASP
CCPCCP
ASP
ASP ASP
BSP
BSP BSP
BSP
ASP ASP
Return
Air Flow
Left Return Back Discharge
Supply
Air Flow
Air Coil
Right Return Back Discharge
Supply
Air Flow
Air Coil
Return
Air Flow
Return
Air Flow
Right Return Straight Discharge
Supply
Air Flow
Supply
Air Flow
Air Coil
Return
Air Flow
Left Return Straight Discharge
= mandatory 61 cm service access
= (optional) additional 61 cm service access
Air Coil
Front Front
FrontFront
CCP CCP
Notes:
1. While clear access to all removable panels is not required,
installer should take care to comply with all building codes
and allow adequate clearance for future eld service.
2. CCP and BSP requires 61 cm service access.
3. Blower service access is through back panel on straight
discharge units or through panel opposite air coil on back
discharge units.
4. ASP are removable panels that provide additional access
to the units interior. Clear access to ASP panels is not
required and they are not to be used in place of the
mandatory CCP and BSP panels.
Legend:
CCP = Control/Compressor Access Panel
BSP = Blower Service Panel
ASP = Additional Service Panel (not required)
Horizontal Installation, Cont’d.

CLIMATEMASTER WATER-SOURCE HEAT PUMPS
10 ClimateMaster Water-Source Heat Pumps
Tranquility 16 (TC) Series
Rev.: 24 January, 2023
Overview - Horizontal units can be eld converted
between straight (side) and back (end) discharge using
the instructions below.
Note: It is not possible to eld convert return air
between left or right return models due to the
necessity of refrigeration copper piping changes.
Preparation - Field conversion must be completed
on the ground. If the unit is already hung it should be
taken down for the eld conversion. Place in a well-
lighted area. Conversion should only be attempted by a
qualied service technician.
Side to Back Discharge Conversion
1. Remove back panel and side access panel
2. Loosen 2 motor slide nuts, raise motor slide
assembly and remove belt and motor sheave.
3. Remove blower sheave. Remove motor bolts and
carefully remove motor.
4. Remove 2 motor clips and reattach to opposite side.
5. Unbolt (3 per side) complete housing assembly.
6. Rotate complete assembly into new position.
Locate over mounting holes in base, reattach using
3 bolts per side.
7. Mount motor, motor sheave, blower sheave and
belt. Make sure wires are not pinched and not over
sharp edges. Adjust motor downward to tighten
belt. Raise or lower motor slide assembly with
adjusting bolt and retighten 2 slide nuts. Check
for correct tension (See Tensioning V-Belt Drives
page). Rewire motor (at contactor) for correct
rotation. Spin blower wheel to ensure wheel is not
obstructed.
8. Replace 2 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 eld 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
conguration 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.
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
Figure 5: Right Return Side to Back
Figure 4: Left Return Side to Back
Extremo de Con
Conducto de Alimentación
Retorno de Aire
Extremo de Conexión de Agua
Drenaje
Retorno de Aire
Descarga de Aire
Descarga Lateral
Water
Connection End
Supply Duct
Return Air
Water
Connection End
Drain
Return Air
Discharge Air
Side Discharge
Back Discharge
Field Conversion of Air Discharge

THE SMART SOLUTION FOR ENERGY EFFICIENCY
11
climatemaster.com
Tranquility 16 (TC) Series
Rev.: 24 January, 2023
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 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 51mm of ESP capability
requires 51mm of trap depth). As a general rule, 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 ush 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.
Condensate drain connection is a rubber coupling that
couples to 3/4” schedule 40/80 PVC. Use hose clamps
to secure the pipe inside the coupling. If the connection
is not secure, the connection may leak. Instructions for
coupling the condensate drain to the trap are included in
the bag that includes the coupling and hose clamps.
3/4" Coupling
Trap Depth
38mm
Min
38mm
21mm per m
drain slope
3/4" PVC or
Copper by others
Vent
Figure 6: Horizontal Condensate Connection
CAUTION! Ensure condensate line is pitched toward drain
21mm per m of run.
⚠
CAUTION!
⚠
Horizontal Installation

CLIMATEMASTER WATER-SOURCE HEAT PUMPS
12 ClimateMaster Water-Source Heat Pumps
Tranquility 16 (TC) Series
Rev.: 24 January, 2023
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 airow through the unit during operation.
Air ow through the unit MUST be at or above the
minimum stated airow 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
exible 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 berglass duct liner or be constructed from
ductboard for the rst 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 ow
is a problem, the blower speed can be changed. For
airow charts, consult submittal data for the series and
model of the specic 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 airow 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.
Duct System Installation

THE SMART SOLUTION FOR ENERGY EFFICIENCY
13
climatemaster.com
Tranquility 16 (TC) Series
Rev.: 24 January, 2023
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 lter
and access panels. Provide sufcient room to make
water, electrical, and duct connection(s).
If the unit is located in a conned 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 difcult 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 or
other mounting pad material for sound isolation.
The pad should be at least 10mm to 13mm in
thickness. Extend the pad beyond all four edges of
the unit.
2. Provide adequate clearance for lter replacement
and drain pan cleaning. Do not block lter 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
sufcient 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 (TC units only).
6. Provide access to water valves and ttings
and screwdriver access to the unit side panels,
discharge collar and all electrical connections.
Flexible canvas duct
connector to reduce
noise and vibration
Use turning vanes in
supply transition
Internally insulate return
transition duct to reduce noise Rev.: 2/13
Internally insulate supply
duct for the first 4’ (1.2m)
each way to reduce noise
Rounded return
transition
Remove supply duct
flanges from inside blower
compartment and install
on supply air opening of
unit. Do not use a supply
air plenum/duct smaller
than the size of the supply
duct flanges.
Flexible canvas duct
connector to reduce
noise and vibration
Use turning vanes in
supply transition
Internally insulate supply
duct for first 1.2 m each way
to reduce noise
Internally insulate return
transition duct to reduce noise
Rounded return
transition
Remove supply duct
flanges from inside blower
compartment and install
on supply air opening of
unit. Do not use a supply
air plenum/duct smaller
than the size of the supply
duct flanges.
Figure 8: Typical Vertical Unit Installation Using
Ducted Return Air
bloque o del ladrillo o sacado
Cojín del aire o sacado
Bloque o ladrillo concreto
Air Pad or extruded
polystyrene insulation board
Figure 7: Typical Vertical Unit Mounting
Vertical Installation

CLIMATEMASTER WATER-SOURCE HEAT PUMPS
14 ClimateMaster Water-Source Heat Pumps
Tranquility 16 (TC) Series
Rev.: 24 January, 2023
Vertical Units
Left Return
Right Return
= mandatory 61 cm service access
= (optional) additional 61 cm service access
ASPASP
Air Coil
Front
CCP and BSP
Supply Air
Opening
ASPASP
Air Coil
Front
CCP and BSP
Supply Air
Opening
Legend:
CCP = Control/Compressor Access Panel
BSP = Blower Service Panel
ASP = Additional Service Panel (not required)
Notes:
1. While clear access to all removable panels is not required,
installer should take care to comply with all building codes
and allow adequate clearance for future eld service.
2. Front & Side access is preferred for service access.
However, all components may be serviced from the front
access panel if side access is not available. (Except on
units with front return air).
3. ASP are removable panels that provide additional access
to the units interior. Clear access to ASP panels is not
required and they are not to be used in place of the
mandatory CCP and BSP panels.
4. Top supply air is shown, the same clearances apply to
bottom supply air units.
5. Front return units (not shown) require front access for
controls/compressor and left side access for blower.
Recommended Minimum Installation Clearances for Vertical Units*
2.5
cm
Back of unit
Side opposite return air
15.2
cm Front if hard piped
Return Air Side
2.5
cm
Ducted return
- ‡ Add for duct width
- † Add 5.0 cm for 2.5 cm lter frame/rail or 7.6 cm for 5.0 cm
lter frame/rail
Free (open) return - calculate required dimension for a maximum
velocity of 3.0 m/s
*Field installed accessories (hoses, air cleaners, etc.) may require additional space.
Top supply air is shown, the same clearances apply to bottom supply air units.
Air Coil Side
Front
‡†
2.5
cm
15.2
cm
2.5
cm
2.5
cm
Vertical Installation, Cont’d.

THE SMART SOLUTION FOR ENERGY EFFICIENCY
15
climatemaster.com
Tranquility 16 (TC) Series
Rev.: 24 January, 2023
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 bafe 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.
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 ush
or blow out the condensate drain line. Do not install
units with a common trap and/or vent.
Return
Air Inlet
Figure 9: Vertical Sound Attenuation
Units with clear plastic drain lines should have regular maintenance
(as required) to avoid buildup of debris, especially in new
construction.
Vertical Installation, Cont’d.
Figure 10: Vertical Condensate Drain
2”
1.5”
1.5”
1/8” Per
Foot

CLIMATEMASTER WATER-SOURCE HEAT PUMPS
16 ClimateMaster Water-Source Heat Pumps
Tranquility 16 (TC) Series
Rev.: 24 January, 2023
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 ushing.
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 ow 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 Teon®
thread tape is pre-applied to hose assemblies or when
ared-end connections are used. If pipe joint compound
is preferred, use compound only in small amounts on
the external pipe threads of the tting adapters. Prevent
sealant from reaching the ared surfaces of the joint.
Note: When antifreeze is used in the loop, ensure
that it is compatible with the Teon tape or pipe joint
compound that is applied.
Maximum allowable torque for brass ttings is 41 N-m.
If a torque wrench is not available, tighten nger-tight
plus one quarter turn. Tighten steel ttings
as necessary.
Optional pressure-rated hose assemblies designed
specically for use with ClimateMaster units are
available. Similar hoses can be obtained from alternate
suppliers. Supply and return hoses are tted with
swivel-joint ttings at one end to prevent kinking during
installation.
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.
A backup wrench is required when tightening water
connections to prevent water line damage for TC Series
equipment. TS Series equipment has water connections
secured to the corner post.
Table 1: Metal Hose Minimum Bend Radii
Hose Diameter Minimum Bend Radii
12.7mm 6.4cm
19.1mm 10.2cm
25.4mm 14cm
31.8mm 17.1cm
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
Rib Crimped
Length
(2 ft [0.6m] Length Standard)
Swivel
Brass
Fitting
Brass
Fitting
MPT
Reborde Acanalado
Longitud
(Long. Estándar de 2 pies)
Accesorio
Giratorio
de Bronce
Accesorio
de Bronce
MPT
MPT
MPT
Rib Crimped
Length
(0.6m Length Standard)
Swivel
Brass
Fitting
Brass
Fitting
MPT
MPT
CAUTION! Corrosive system water requires corrosion
resistant ttings and hoses, and may require water
treatment.
CAUTION! Do not bend or kink supply lines or hoses.
⚠
CAUTION!
⚠
⚠
CAUTION!
⚠
⚠
CAUTION!
⚠
CAUTION! Piping must comply with all applicable codes.
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 CPVC 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!
⚠
Piping Installation

THE SMART SOLUTION FOR ENERGY EFFICIENCY
17
climatemaster.com
Tranquility 16 (TC) Series
Rev.: 24 January, 2023
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 15.6ºC. Metal to
plastic threaded joints should never be used due to their
tendency to leak over time.
Te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
congurations 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 ushed to remove
dirt, piping chips, and other foreign material prior to
operation (see “Piping System Cleaning and Flushing
Procedures” in this manual). The ow rate is usually set
between 2.9 and 4.5 l/m per kW of cooling capacity.
ClimateMaster recommends 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 ow verication, as well
as performance checks.
Water loop heat pump (cooling tower/boiler) systems
typically utilize a common loop, maintained between
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 ltering will be necessary.
Figure 12: Typical Water-Loop Application
Low Water Temperature Cutout Setting
CXM2 - When antifreeze is selected, the FP1 jumper (JW3) should be clipped to select the low temperature
(antifreeze -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.
(by others)
Thermostat
Wiring
Water In
Water Out
Optional Balancing Valve
Stainless steel braid hose
with integral "J" swivel
Building
Loop
Power Wiring
Return Air
Supply
Air
Unit Hanger
Ball Valve with optional
integral P/T plug
3/8" [10mm] threaded rods
Unit Power
Flexible Duct
Connector
Insulated supply duct with
at least one 90 deg elbow
to reduce noise Unit Power
Disconnect
(by others)
Optional Low Pressure Drop Water
Control Valve
(can be internally mounted
on some models)
Water-Loop Heat Pump Applications

CLIMATEMASTER WATER-SOURCE HEAT PUMPS
18 ClimateMaster Water-Source Heat Pumps
Tranquility 16 (TC) Series
Rev.: 24 January, 2023
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 ttings should
not be used at any time due to their tendency to
corrode. All plastic to metal threaded ttings should be
avoided due to their potential to leak in earth coupled
applications. A anged tting should be substituted.
P/T plugs should be used so that ow can be measured
using the pressure drop of the unit heat exchanger.
Earth loop temperatures can range between -4 to 43°C.
Flow rates between 2.41 to 3.23 l/m per kW of cooling
capacity is recommended in these applications.
Test individual horizontal loop circuits before backlling.
Test vertical U-bends and pond loop assemblies prior
to installation. Pressures of at least 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,
ush the system to remove all foreign objects and purge
to remove all air.
Antifreeze
In areas where minimum entering loop temperatures
drop below 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 ofce should be consulted to determine
the antifreeze best suited to your area. Freeze protection
should be maintained to 9°C below the lowest expected
entering loop temperature. For example, if -1°C is the
minimum expected entering loop temperature, the
leaving loop temperature would be -4 to -6°C and
freeze protection should be at -10°C. Calculation is as
follows: -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 uid 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 specic gravity.
Table 2: Antifreeze Percentages by Volume
Type Minimum Temperature for Low Temperature Protection
-12.2°C -9.4°C -6.7°C -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! 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.
⚠
CAUTION!
⚠
⚠
CAUTION!
CAUTION! Ground loop applications require extended
range equipment and optional refrigerant/water circuit
insulation.
Ground-Loop Heat Pump Applications

THE SMART SOLUTION FOR ENERGY EFFICIENCY
19
climatemaster.com
Tranquility 16 (TC) Series
Rev.: 24 January, 2023
Figure 13: Typical Ground-Loop Application
(by others)
Thermostat
Wiring
Water In
Water Out
Optional Balancing Valve
Stainless steel braid hose
with integral "J" swivel
Building
Loop
Power Wiring
Return Air
Supply
Air
Unit Hanger
Ball Valve with optional
integral P/T plug
3/8" [10mm] threaded rods
Unit Power
Flexible Duct
Connector
Insulated supply duct with
at least one 90 deg elbow
to reduce noise Unit Power
Disconnect
(by others)
Optional Low Pressure Drop Water
Control Valve
(can be internally mounted
on some models)
Ground-Loop Heat Pump Applications, Cont’d.

CLIMATEMASTER WATER-SOURCE HEAT PUMPS
20 ClimateMaster Water-Source Heat Pumps
Tranquility 16 (TC) Series
Rev.: 24 January, 2023
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 ushing of the heat exchanger. Shut off
valves should be positioned to allow ow through the
coax via the boiler drains without allowing ow into
the piping system. P/T plugs should be used so that
pressure drop and temperature can be measured.
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 eld, 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 21). NOTE: the special wiring
diagrams for slow closing valves (Figures 22 & 23).
Flow Regulation
Flow regulation can be accomplished by two methods.
One method of ow 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 ow rate from Tables 8a
through 8e. Since the pressure is constantly varying,
two pressure gauges may be needed. Adjust the
valve until the desired ow of 2.0 to 2.6 l/m per kW is
achieved. A second method of ow control requires a
ow control device mounted on the outlet of the water
control valve. The device is typically a brass tting with
an orice of rubber or plastic material that is designed
to allow a specied ow rate. On occasion, ow 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 10°C, 2.6 l/m per kW is 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 CPVC 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 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 qualied
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 ushing.
In some cases, the desuperheater option should not
be recommended due to hard water conditions and
additional maintenance required.
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, 66°C for direct use (well water/open
loop) and DHW (desuperheater); 32°C for indirect use.
Ground-Water Heat Pump Applications