ClimateMaster TRC09, TRC18, TRC12, TRC15 Installation Operation & Maintenance
Tranquility® Console
(TRC) Series
Commercial Console
Water-Source Heat Pumps
50Hz & 60Hz
Installation, Operation
& Maintenance
97B0035N01
Revised: 24 August, 2015
Table of Contents
Model Nomenclature: Tranquility® Console
(TRC) Series (60Hz) 3
Model Nomenclature: Tranquility® Console
(TRC) Series (50Hz) 4
General Information 5
Unit Physical Data 7
Installation 9
Piping Connections - TRC Size 06-15 11
Piping Connections - TRC Size 18 12
Piping Connections 13
Water-Loop Heat Pump Applications 14
Ground-Loop Heat Pump Applications 15
Ground-Water Heat Pump Applications 16
Water Quality Standards 18
Electrical - Line Voltage 19
Electrical - Low Voltage 22
TRC Series Wiring Diagram Matrix 24
CXM Controls 25
DXM Controls 26
Safety Features - CXM/DXM Controls 28
Unit Commissioning and Operating Conditions 30
Piping System Cleaning and Flushing 31
Unit and System Checkout Procedure 32
Unit Start-Up Procedure 33
Unit Operating Conditions 34
Start-Up Log Sheet 36
Preventive Maintenance 37
Functional Troubleshooting 38
Performance Troubleshooting 39
Troubleshooting Form 40
Warranty (U.S. & Canada) 41
Warranty (International) 42
Revision History 44
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Consoles
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ClimateMaster Water-Source Heat Pumps
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THE SMART SOLUTION FOR ENERGY EFFICIENCY
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Model Nomenclature: Tranquility® Console (TRC) Series (60Hz)
T R C AB0 9 CG S S C S R S
94 5 6
7
8101112131415
TRC = Console
Revision Level
Voltage
Controls
Cabinet Construction
D = Bottom Return w/Locking Control Door
Subbase
A = Copper Water Coil w/ e-CoatedAir Coil
Heat Exchanger Options
C = Copper Water Coil
J = Cupro-nickel Water Coil w/ e-Coated Air Coil
N = Cupro-nickel Water Coil
R = Right Piping
Piping Connections
L = Left Piping
V = Left Piping w/SS Drain Pan
W = Right Piping w/SS Drain Pan
Standard
B = Front Return
M = Bottom Return
S = 5” Subbase
H = 5” Subbase w/Motorized Damper
N = None
V = Copper Water Coil w/ e-Coated Air Coil & Extended Range Insulation
E = Copper Water Coil w/Extended Range Insulation
M = Cupro-nickel Water Coil w/ e-Coated Air Coil & Extended Range Insulation
F = Cupro-nickel Water Coil w/Extended Range Insulation
1 2 3
S = Standard
None S F M
Motorized Water Valve A G N
Autoflow (2.25 Gpm/Ton) B H P
Autoflow (3.0 Gpm/Ton) C J Q
Motorized Water Valve & Afr (2.25) D K R
Motorized Water Valve & Afr (3.0) E L T
Secondary Circulation Pump U V W
Water Circuit Options
E = Front Return w/Locking Control Door
C = No Cabinet BR Chassis Only
09, 12, 15, 18
B = Current Revision
Model Type
Unit Size
Sweat FPT MPT
L = Bottom Return w/Locking Control Door
F = Front Return
S = Bottom Return
G = Front Return w/Locking Control Door
N = No Cabinet BR Chassis Only
With UltraQuiet Without UltraQuiet
C = ACO Unit Mounted Tstat w/CXM
D = ACO Unit Mounted Tstat w/DXM
R = Remote Mounted Tstat w/CXM
S = Remote Mounted Tstat w/DXM
L = Remote Mounted w/CXM & LON
M = Remote Mounted w/DXM & LON
N = Remote Mounted w/CXM & MPC
P = Remote Mounted w/DXM & MPC
G = 208-230/60/1
A = 115/60/1
E = 265/60/1
J = No Cabinet FR Chassis Only
H = No Cabinet FR Chassis Only
POWER TERMINATION & OPTIONS
OPTION
A
B
D
F
K
DISCONNECT
SWITCH
-
-
X
X
FIELD
CONNECTED
(HARD WIRE)
X
-
-
-
-
20 Amp
PLUG &
CORD
X
-
X
BREAKER
-
X
-
-
RECEPTACLE
-
-
-
X
ISO 9001:2008
Certified
Quality: First & Always
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Consoles
Rev.: 08/24/15
4
ClimateMaster Water-Source Heat Pumps
}
Extended Range
TRC AB12 FV
M
S C S R S
94 5 6
7
8 101112131415
POWER TERMINATION & OPTIONS
REVISION LEVEL
VOLTAGE
CONTROLS
SUBBASE
A = Copper Water Coil w/E-Coated Air Coil
HEAT EXCHANGER OPTIONS
C = Copper Water Coil w/Non-Coated Air Coil
J = Cupro-Nickel Water Coil w/E-Coated Air Coil
N = Cupro-Nickel Water Coil w/Non-Coated Air Coil
R = RIGHT PIPING
PIPING CONNECTIONS
L = LEFT PIPING
S = STANDARD
S = 5” SUBBASE (BLACK)
H = 5” SUBBASE w/MOTORIZED DAMPER
N = NONE
V = Copper Water Coil w/E-Coated Air Coil
E = Copper Water Coil w/Non-Coated Air Coil
M = Cupro-Nickel Water Coil w/E-Coated Air Coil
F = Cupro-Nickel Water Coil w/Non-Coated Air Coil
1 2 3
ABC....(EXCEPT “S”) = SPECIAL
Sweat FPT MPT
None S F M
AutoFlow (2.25 gpm/ton) B H P
AutoFlow (3.0 gpm/ton) C J Q
WATER CIRCUIT OPTIONS
09
12
15
18
SERIES
UNIT SIZE
Size
TRC06
TRC09
TRC12
TRC15
TRC18
1.5
2.0
2.5
3.0
3.5
0.095
0.126
0.158
0.189
0.221
2.0
2.5
3.0
3.5
4.0
0.126
0.158
0.189
0.221
0.252
US GPM LPS US GPM LPS
Option B,H,P,D,K,R Option C,J,Q,E,L,T
Flow Regulator Reference
GPM = Gallons Per Minute
LPS = Liters Per Second
OPTION
A
F
DISCONNECT
SWITCH
-
X
FIELD
CONNECTED
(HARD WIRE)
X
-
B = CURRENT REVISION
M = BOTTOM RETURN w/ULTRA QUIET
B = FRONT RETURN w/ULTRA QUIET
TRC = TRANQUILITY CONSOLE (R410A)
CABINET AND CONSTRUCTION
D = BOTTOM RETURN w/LOCKING CONTROL DOOR w/ULTRA QUIET
E = FRONT RETURN w/LOCKING CONTROL DOOR w/ULTRA QUIET
C = NO CABINET, BOTTOM RETURN CHASSIS ONLY w/ULTRA QUIET
J = NO CABINET, FRONT RETURN CHASSIS ONLY w/ULTRA QUIET
V = 220-240/50/1
F = ACO UNIT MOUNTED TSTAT w/CXM
K = ACO UNIT MOUNTED TSTAT w/DXM
Q = REMOTE MOUNTED TSTAT w/CXM
G = REMOTE MOUNTED TSTAT w/DXM
H = REMOTE MOUNTED LON w/CXM
V = REMOTE MOUNTED LON w/DXM
T = REMOTE MOUNTED MPC w/CXM
U = REMOTE MOUNTED MPC w/DXM
Model Nomenclature: Tranquility® Console (TRC) Series (50Hz)
ISO 9001:2008
Certified
Quality: First & Always
THE SMART SOLUTION FOR ENERGY EFFICIENCY
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General Information
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 profi ciency 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 fi lters
will quickly become clogged with construction dirt and debris,
which may cause system damage.
WARNING!
WARNING!
WARNING!
CAUTION!
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: Notifi cation 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.
WARNING!
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.
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Consoles
Rev.: 08/24/15
6
ClimateMaster Water-Source Heat Pumps
General Information
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. Insure 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
fi led within 15 days, the freight company can deny the
claim without recourse. Note: It is the responsibility of the
purchaser to fi le all necessary claims with the carrier. Notify
your equipment supplier of all damage within fi 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, fi ttings, 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
confi 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. Make sure wall behind the unit is fl at
and smooth.
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 fi 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.
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
signifi cantly reduce performance, reliability, and service life.
Always move and store units in an upright position. Tilting
units on their sides may cause equipment damage.
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.
THE SMART SOLUTION FOR ENERGY EFFICIENCY
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Unit Physical Data
Tranquility® Console (TRC) Series (60Hz)
Optional Factory Installed Auto Flow Regulator GPM [LPS]
Model 2.25 GPM/Ton 3 GPM/Ton
9
2.0 [.126] 2.5 [.158]
12
2.5
[.158] 3.0 [.189]
15
3.0
[.189] 3.5 [.221]
18
3.5
[.221] 4.0 [.252]
Model 09 12 15 18
Compressor (1 Each) Rotary
Factory Charge HFC-410A (oz) [kg] 28 [0.794] 29 [0.822] 33 [0.907] 39 [1.105]
Blower Wheel
Blower Wheel Size (dia x w) (in) [mm] - Qty 2
5.25 x 6.25 [133 x 159]
Water Connection Size
O.D. Sweat (in) [mm] 1/2 [12.7] 3/4 [19.1]
Optional FPT Fittings (in) 1/2 3/4
Optional MPT Fittings (in) 1/2 3/4
Coax Volume
Volume US Gal
[Liters]
.09
[.34]
.09
[.34]
.23
[.87]
.26
[.98]
Condensate Connection Size
I.D. Vinyl Hose (In) [mm] 5/8 [15.9]
Air Coil Size
Dimensions (h x w) - (in) [mm]
8 x 26
[203 x 660]
10 x 26
[254 x 660]
10 x 32
[254 x 812]
Filter Size
Bottom Return (in) [mm] 1 - 10 x 30 x 1 [254 x 762 x 25] 1 - 10 x 36 x 1 [254 x 914 x 25]
Front Return (In) [mm] 1 - 7 x 29.5 x 1/8 [178 x 749 x 3.2] 1 - 7 x 35.5 x 1/8 [178 x 902 x 3.2]
Unit Size
Bottom Return (Std. 5” Base)
(W x H x D) - (In) [mm]
48 x 26 x 12 [1219 x 660 x 305] 54 x 26 x 12 [1372 x 660 x 305]
Front Return (No Subbase)
(W x H x D) - (In) [mm]
48 x 21 x 12 [1219 x 533 x 305] 54 x 21 x 12 [1372 x 533 x 305]
Unit Weight
Weight - Operating, (lbs) [kg] 175 [79] 180 [82] 190 [86.2] 220 [99.8]
Weight - Packaged, (lbs) [kg] 185 [83.9] 190 [86] 200 [90.8] 232 [105.2]
All units have rubber grommet compressor mountings and TXV expansion devices.
Unit Maximum Water Working Pressure
Options
Max Pressure PSIG [kPa]
Base Unit
500 [3,445]
Internal Secondary Pump (ISP)
145 [999]
Internal Motorized Water Valve (MWV)
300 [2,068]
Internal Auto Flow Valve
500 [3,445]
Use the lowest maximum pressure rating when multiple options are combined.
Optional hoses have pressure rating of 400 PSIG (2758 (kPa)
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Consoles
Rev.: 08/24/15
8
ClimateMaster Water-Source Heat Pumps
Unit Physical Data
Tranquility® Console (TRC) Series (50Hz)
Model 09 12 15 18
Compressor (1 Each) Rotary
Factory Charge R410A (oz) [kg] 28 [0.794] 29 [0.822] 33 [0.936] 39 [1.105]
PSC Fan Motor & Blower (3 Speeds)
Fan Motor (hp) [W] 1/20 [37] 1/12 [62] 1/8 [93] 1/8 [93]
Blower Wheel Size (dia x w) -
(in) [mm] - Qty 2
5.25 x 6.25 [133 x 159]
Water Connection Size
O.D. Sweat (in) [mm] 1/2 [12.7] 3/4 [19.1]
Optional IPT Fittings (in) 1/2 3/4
Optional EPT Fittings (in) 1/2 3/4
Condensate Connection Size
I.D. Vinyl Hose (In) [mm] 5/8 [15.9]
Air Coil Size
Dimensions (h x w) - (in) [mm]
8 x 26
[203 x 660]
10 x 26 [254 x 660]
10 x 32
[254 x 813]
Filter Size
Bottom Return (in) [mm] 1 - 10 x 30 x 1 [254 x 762 x 25]
1 - 10 x 36 x 1
[25.4 x 91.4 x 2.5]
Front Return (In) [mm] 1 - 7 x 29.5 x 1/8 [178 x 749 x 3.2]
1 -7 x 35.5 x 1/8
[178 x 902 x 3.2]
Cabinet Size
Bottom Return (Std. 5" [127] Base)
(W x H x D) - (In) [mm]
48 x 26 x 12 [1219 x 660 x 305]
54 x 26 x 12
[1372 x 660 x 305]
Front Return (No Subbase)
(W x H x D) - (In) [mm]
48 x 21 x 12 [1219 x 533 x 305]
54 x 21 x 12
[1372 x 533 x 305]
Cabinet Size
Weight - Operating, (lbs) [kg] 175 [79] 180 [82] 190 [86.2] 220 [99.8]
Weight - Packaged, (lbs) [kg] 185 [83.9] 190 [86] 200 [90.8] 232 [105.2]
All units have rubber grommet compressor mountings and TXV expansion devices.
Unit Maximum Water Working Pressure
Options
Max Pressure PSIG [kPa]
Base Unit
500 [3,445]
Internal Secondary Pump (ISP)
145 [999]
Internal Motorized Water Valve (MWV)
300 [2,068]
Internal Auto Flow Valve
500 [3,445]
Use the lowest maximum pressure rating when multiple options are combined.
Optional hoses have pressure rating of 400 PSIG (2758 (kPa)
Optional Factory Installed Auto Flow Regulator GPM [LPS]
Model 2.25 GPM/Ton 3 GPM/Ton
9
2.0 [.126] 2.5 [.158]
12
2.5
[.158] 3.0 [.189]
15
3.0
[.189] 3.5 [.221]
18
3.5
[.221] 4.0 [.252]
THE SMART SOLUTION FOR ENERGY EFFICIENCY
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Rev.: 08/24/15
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Installation
1. Console units are typically installed along an outside
wall of the room. Provide adequate space in front
of the unit for service and maintenance. Locate
the Console Unit so that it provides adequate air
circulation throughout the room.
2. Unpack the Console Unit from the shipping carton.
Remove the front cabinet by lifting up and away from
the backplate. Protect the cabinet from damage
during installation by returning it to its original
packaging until required.
3. Using a carpenter's square and a level, ensure the
unit is level. Shim the unit if necessary to assure
proper installation.
4. Select the proper fasteners to connect the backplate
securely to the wall.
5. Fasten the backplate onto the wall through the screw
holes located in the back fl ange. Secure the subbase
in place.
6. Make all necessary electrical connections as
described in the Electrical Wiring section of this
manual. Consult the wiring diagram to ensure proper
hook-up.
7. Connect the fi nal piping as described in the Supply
and Return Piping and Condensate Piping section
of the manual. Install shut-off valves, piping and/or
hoses and other accessories as specifi ed.
8. Before making the fi nal water connections, fl ush the
system as described in the Start Up section of this
manual. After fl ushing the system, connect piping and
hoses to the proper supply, return and condensate
connections of the unit.
Note: When necessary, use adapters to connect hoses.
9. Install any other system components as required
following manufacturer's instructions.
10. After Start-up, reinstall the front cabinet by
carefully lowering the front cabinet over the chassis
onto the backplate.
Supply and Return Hoses - Optional pressure-rated
hose assemblies 400 psi [2758 kPa] are available for use
with ClimateMaster Console Units. Use the following
guidelines when installing supply and return hose
assemblies.
1. Install supply and return hoses fi tted with swivel-joint
fi ttings at one end to prevent the hose from twisting.
2. Use adapters to secure the hose assembly to the unit
and the riser.
3. Do not allow the hose to twist during installation.
Twisting may damage the hose wall or the interior
rubber compound.
4. Use pipe joint compound sparingly on the pipe
threads of the fi tting adapters.
5. Prevent sealant from reaching the fl ared surfaces of
the joint.
6. Do not use pipe joint compound when tefl on thread
tape is pre-applied to hose assemblies or when
fl ared-end connections are used.
7. Maximum torque which may be applied to brass
fi ttings is 30 ft-lbs [41 N-m]. When a torque wrench is
not used, tighten brass fi ttings fi nger-tight plus one
quarter turn.
8. Tighten steel fi ttings as necessary.
9. Shut-off/balancing valves, fl ow indicators, and drain
tees in the supply runout and return at each fl oor to
aid in loop balancing and servicing.
The installation of Console Water-Source Heat Pumps
and all associated components, parts and accessories
that 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.
Note: An Installation Checklist is provided in this
manual. Complete this checklist after all installation
procedures are completed. A periodic maintenance
checklist provided in the Maintenance section outlines
recommended maintenance schedules. A Start-Up
Inspection Log is also included at the end of this
manual to encourage thorough unit checkout at initial
start-up. These checklists are not a substitute for the
detailed information found in the Installation section
of this manual
.
CAUTION! Poor or inadequate installation may result in
noisy unit operation or unattractive installation.
CAUTION!
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Consoles
Rev.: 08/24/15
10
ClimateMaster Water-Source Heat Pumps
CAUTION!
CAUTION! Loop Fluids should be of good quality with no
more than 0.50 ppm of chlorides w/copper heat exchangers
(125 ppm w/ Cupro-nickel) to prevent corrosion and should
also be fi ltered to a maximum 800 micron [0.8mm particle
size to prevent erosion of the heat exchangers.
Installation
Condensate Piping - Unit is supplied with condensate
drain hose, 5/8 inch [16mm] I.D. fl exible plastic
nonpressure-rated, protruding from piping side of unit.
Connect this hose to building drain. Avoid making kinks
in hose to ensure an unobstructed fl ow of condensate
from the unit to the drain. DO NOT twist, pull hose out,
or push excess hose into unit. If hose will not connect
to your building drain several options include, relocate
end of building drain, add to or cut hose, use hard
plastic or copper elbow fi ttings for tight radii (put inside
hose). Keep hose positioned within or over subbase
area so hose does not interfere with front cabinet.
Cabinet should not push or reroute hose. Clamp all joints
watertight. Check for leaks.
Internally the drain hose is clamped to drain pan and
pitched correctly. Horizontal runs of condensate hose
should be pitched downward 1/4 inch minimum for every
foot [10mm per 46cm] of hose. Avoid low points because
dirt collects in these areas and may cause blockage. If
blocked the condensate level in drain pan increases.
When the level gets too high, the Console unit has
sensor switch that will shut unit off. Overfl ow may still
occur.
If the building drain connection is parallel with fl oor,
the height can be up to 1-1/2 inches [38mm] above the
subbase for proper pitch and correct drainage. Up to
5 inches [127mm] above the subbase is allowable, but
drainage will be slower. When the drain connection
is 2-1/2 to 5 inches [64 to 127mm] above, the hose
inside the unit will act as a trap. Heights of more than 5
inches [127mm] above the subbase are NOT allowable
(condensate overfl ow may occur). If the unit has a
disconnect option, drain locations are limited. See unit
confi guration pages for details.
Field installation of a trap or vent is not required unless
specifi ed by local codes. Console units are designed
in a blow-through confi guration. The condensate drain
pan is located on the outlet side of the blower so that
the pressure in the drain pan is higher than atmospheric
pressures.
When drain connection is completed check for proper
drainage and leaks. Correct if necessary.
If trap is used, check and clean often. See Preventive
Maintenance Instructions.
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Consoles
Rev.: 08/24/15
11
climatemaster.com
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Piping Connections - TRC Size 09-15
CAUTION! Corrosive system water requires corrosion
resistant fi ttings and hoses, and may require water treatment.
CAUTION! Piping must comply with all applicable codes.
CAUTION!
CAUTION!
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Consoles
Rev.: 08/24/15
12
ClimateMaster Water-Source Heat Pumps
Piping Connections - TRC Size 18
CAUTION! Corrosive system water requires corrosion
resistant fi ttings and hoses, and may require water treatment.
CAUTION! Piping must comply with all applicable codes.
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CAUTION!
CAUTION!
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Consoles
Rev.: 08/24/15
13
climatemaster.com
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 fl 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 fl 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 Tefl on®
thread tape is pre-applied to hose assemblies or when
fl ared-end connections are used. If pipe joint compound
is preferred, use compound only in small amounts on
the external pipe threads of the fi tting adapters. Prevent
sealant from reaching the fl ared surfaces of the joint.
Note: When antifreeze is used in the loop, insure that it is
compatible with the Tefl on tape or pipe joint compound
that is applied.
Maximum allowable torque for brass fi ttings is 30 ft-lbs
[41 N-m]. If a torque wrench is not available, tighten
fi nger-tight plus one quarter turn. Tighten steel fi ttings
as necessary.
Optional pressure-rated hose assemblies designed
specifi cally for use with ClimateMaster units are available.
Similar hoses can be obtained from alternate suppliers.
Supply and return hoses are fi tted with swivel-joint fi ttings
at one end to prevent kinking during installation.
Refer to Figure 2 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.
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]
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 2: Supply/Return Hose Kit
Rib Crimped
Length
(0.6m Length Standard)
Swivel
Brass
Fitting
Brass
Fitting
MPT
MPT
Piping Connections
CAUTION! Do not bend or kink supply lines or hoses.
CAUTION!
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!
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Consoles
Rev.: 08/24/15
14
ClimateMaster Water-Source Heat Pumps
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. In piping systems expected to utilize water
temperatures below 50°F [10°C], 1/2” (13mm) closed cell
insulation is required on all piping surfaces to eliminate
condensation (extended range units required). Metal to
plastic threaded joints should never be used due to their
tendency to leak over time.
Te fl 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 confi gurations 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 fl ushed to remove dirt, piping
chips, and other foreign material prior to operation (see
“Piping System Cleaning and Flushing Procedures” in this
manual). The fl ow 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
insure proper maintenance and servicing, P/T ports are
imperative for temperature and fl ow verifi cation, 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 fi ltering will be necessary.
Table 2: Antifreeze Percentages by Volume
Low Water Temperature Cutout Setting - CXM Control
When antifreeze is selected, the LT1 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.
Type
Minimum Temperature for Freeze Protection
10ºF [-12.2ºC] 15ºF [-9.4ºC] 20ºF [6.7ºC] 25ºF [-3.9ºC]
Methanol - 100% USP food grade 25% 21% 16% 10%
Propylene Glycol 38% 30% 22% 15%
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