ClimateMaster | OB Series | Service manual | ClimateMaster OB Series Service manual

ClimateMaster OB Series Service manual
Tranquility® Modular
(TRM) Vertical Stack Series
Table of Contents
TRM Model Nomenclature
3
TRM Model Nomenclature - Chassis
4
Accessory Nomenclature
5
General Information
6
Riser & Cabinet Installation
8
Cabinet Installation
11
Piping Installation
14
Water-Loop Heat Pump Applications
15
Ground-Loop Heat Pump Applications
16
Ground-Water Heat Pump Applications
17
Water Quality Standards
19
Electrical Wiring - Line Voltage
20
Electrical Wiring - Low Voltage
21
Blower Performance Data
22
Thermostat Installation
23
Chassis Pre-Installation
24
Start-Up Preparation
25
Hose Kit & Chassis Installation
26
TRM Series Wiring Diagram Matrix
30
Typical Wiring Diagram Single Phase TRM Units with CXM Controller
Commercial
Vertical Stack
Water-Source Heat Pumps
Installation, Operation
& Maintenance
97B0056N01
Revised: 09 November, 2012
31
Typical Wiring Diagram Single Phase TRM Units with DXM Controller
32
CXM Controls
33
DXM Controls
34
Safety Features - CXM/DXM Controls
36
Unit and System Checkout
39
Unit Start-Up Procedures
40
Unit Operating Conditions
41
Start-Up Log Sheet
44
Preventive Maintenance
45
Functional Troubleshooting
46
Performance Troubleshooting
47
Troubleshooting Form
48
Warranty
49
Revision History
52
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Vertical Stack
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This Page Intentionally Left Blank
2
C l i m a t e M a s t e r Wa t e r - S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Vertical Stack
R e v. : 1 1 / 0 9 / 1 2
TRM Model Nomenclature
2
3
09
1
S
4
6
5
G O N
7
8
9 10
11
12
13
14
15
A
A
1A
O O
O
O
A
REVISION LEVEL
UNIT SIZE
(TRM)
(816)
SIZE / R22 SIZE / R410A
10
09
15
12
(816)
R22
15=(cab size 18)
20
18
24
30
36
(TRM)
R410A
28
30
36
A = CURRENT R410A UNITS
CABINET STYLE
A = STANDARD
C = MASTER
D = SLAVE
B = STANDARD
E = MASTER
F = SLAVE
P = STANDARD
Q = MASTER
R = SLAVE
S = STANDARD
T = MASTER
U = SLAVE
.625 Flange
“H” PANEL
STANDARD
O = STANDARD
A, B, C etc.... = SPECIAL 1, 2, 3 etc....
RIGHT
1.250 Flange
“G” PANEL
LEFT
SUPPLY AIR OPENING SIZES
FRONT
.625 Flange
“H” PANEL
VOLTAGE
1.250 Flange
“G” PANEL
OPTION
Volt/Hertz/Phaze
G
E
208-230/60/1
265/60/1
TOP DISCHARGE OPENINGS BY UNIT SIZE
UNIT SIZE
OPENING
816-10 & 15/TRM-09 & 12
10” x 10”
816-20/TRM-15 & 18
13” x 13”
816-28, 30 & 36/TRM-24, 30 &36 17” x 17”
G = 14”W x 6”H
A = 10”W x 6”H
B = 10”W x 8”H H = 14”W x 8”H
C = 10”W x 10”H M = 16”W x 6”H
D = 12”W x 10”H P = 16”W x 10”H
E = 12”W x 12”H Q = 16”W x 12”H
F = 12”W x 6”H
R = 16”W x 14”H
O = NO OPENINGS
OPTIONS
OPTION HI STATIC MOTOR 3 S.S. DRAIN PAN MANUAL AIR VENT
A
B
C
D
E
H
M
1
2
3
4
5
6
7
O
X
X
X
X
X
X
X
X
NO OPTIONS
X
X
X
X
X
X
X
X
-
X
X
X
X
X
X
X
X
RISER CHASE
X
X
X
X
X
X
X
RETURN & SUPPLY AIR
CONTROLS
OPTION CXM DXM
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
NO OPTION
C
D
E
F
G
H
L
M
N
P
R
S
1
2
3
4
5
6
7
8
O
SURFACE/
REMOTE/
X-MOTOR
WALL SENSOR
X
X
X
X
X
X
X
X
W
W
W
W
R
S
W
W
R
S
R
S
R
S
R
S
W
W
W
W
MPC/
LON
M
M
M
L
L
L
M
M
L
L
QUANTITY OF RETURN
AIR FLOW
AIR
SUPPLIES POSITION
N.O.
MWV
S
I
N
G
L
E
X
X
X
X
X
X
X
X
S
U
P
P
L
Y
A
C
D
E
F
G
H
J
2
3
4
6
7
8
O
X
X
X
NO OPTIONS
NLLS
2 SPD FAN SW
DIGIT
9 & 10
2A
2B
2C
2D
2E
2F
2G
2H
2J
2K
2L
2M
2N
2P
2Q
2R
2S
2T
S
U
P
P
L
Y
ELECTRIC HEAT
X
X
X
-
X
X
X
-
X
X
X
X
X
X
X
X
X
-
2.5Kw
5.0Kw
7.5Kw
2.5Kw
5.0Kw
7.5Kw
1A
1B
1C
1D
1E
1F
1G
1H
1J
1K
1L
1M
FRONT
FRONT
FRONT
FRONT
FRONT
FRONT
RIGHT
RIGHT
RIGHT
RIGHT
RIGHT
RIGHT
LEFT
LEFT
LEFT
LEFT
LEFT
LEFT
D
O
U
B
L
E
X
X
X
-
DIGIT
9 & 10
QUANTITY OF RETURN
AIR FLOW
AIR
SUPPLIES POSITION
POWER TERMINATION
OPTION DISCONNECT SWITCH BREAKER
FRONT
FRONT
FRONT
FRONT
RIGHT
RIGHT
RIGHT
RIGHT
LEFT
LEFT
LEFT
LEFT
SUPPLY AIR POSITION
FRONT RIGHT
LEFT
TOP
X
-
X
-
-
-
-
X
-
X
X
-
X
-
-
X
-
X
-
X
-
-
X
-
-
-
-
X
-
X
SUPPLY AIR POSITION
FRONT RIGHT
X
X
X
-
LEFT
TOP
X
-
X
-
X
X
X
-
-
X
-
X
X
X
X
X
X
X
-
X
-
X
-
X
X
-
-
X
-
X
X
X
X
X
X
X
-
X
-
X
-
X
X
-
-
X
-
X
X
X
QUANTITY OF RETURN
AIR FLOW
AIR
SUPPLIES POSITION
T
R
I
P
L
E
S
U
P
P
L
Y
FRONT
FRONT
FRONT
FRONT
RIGHT
RIGHT
RIGHT
RIGHT
LEFT
LEFT
LEFT
LEFT
QUANTITY OF RETURN
AIR FLOW
AIR
SUPPLIES POSITION
QUAD
SUPPLY
FRONT
RIGHT
LEFT
QUANTITY OF RETURN
AIR FLOW
AIR
SUPPLIES POSITION
NO
SUPPLY
(Zero)
FRONT
RIGHT
LEFT
DIGIT
9 & 10
3A
3B
3C
3D
3E
3F
3G
3H
3J
3K
3L
3M
DIGIT
9 & 10
4A
4B
4C
DIGIT
9 & 10
0A
0B
0C
SUPPLY AIR POSITION
FRONT RIGHT
LEFT
TOP
X
X
X
X
X
-
X
X
-
X
X
X
X
X
X
X
X
X
X
-
X
X
X
X
X
X
X
X
X
X
-
X
X
-
X
X
-
X
X
X
X
X
SUPPLY AIR POSITION
FRONT RIGHT
LEFT
TOP
X
X
X
X
X
X
X
X
X
X
X
X
SUPPLY AIR POSITION
FRONT RIGHT
LEFT
TOP
-
-
-
-
-
-
-
-
BACK
LEFT
S
U
P
P
L
Y
D
R
A
I
N
R
E
T
U
R
N
RIGHT
FRONT
CABINET HEIGHT
OPTION
80”
88”
8” CABINET STAND
ISO PAD
A
B
C
D
E
F
G
H
X
X
X
X
X
X
X
X
-
X
X
X
X
X
X
X
X
c l i m a t e m a s t e r. c o m
3
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Vertical Stack
R e v. : 1 1 / 0 9 / 1 2
TRM Model Nomenclature - Chassis
Chassis
1 2
3
4 5
TRM
6
7
8
9
10
11
12
09 G S S S C S A
Series
Revision Level
TRM = Tranquility® High Rise Chassis
A = 24, 30, 36
B = 09, 12, 15, 18
Unit Size
Standard
09, 12, 15, 18, 24, 30, 36
S = Standard
Voltage
Heat Exchanger Options
G = 208-230/60/1
E = 265/60/1
Standard
Extended Range
Options*
A
S.S.
Drain
Pan
X
B
OPTION
MUTE
AST008 AST009
RAS
RAS
-
-
-
-
-
-
X
C
X
-
-
X
D
-
-
X
-
E
X
-
X
-
1
-
X
-
-
2
X
X
-
-
3
-
X
-
X
4
X
X
-
X
5
6
S
X
-
X
X
-
X
X
-
-
* - TRM Only available with P Control
Water Valve & Pump Option
S = No Water valve
M = Normally Closed Water Valve
P = Secondary Circulating Pump
Auto Flow Regulator
7/8 SWEAT
5/8 SWEAT
C
D
E
F
G
H
J
K
L
M
N
P
UNIT
09
UNIT
12
UNIT
15
UNIT
18
UNIT
24
UNIT
30
UNIT
36
1.5
2.0
2.5
3.0
-
2.0
2.5
3.0
2.5
3.0
3.5
3.0
-
-
--
3.5
-
4.0
-
-
4.0
5.0
6.0
-
-
4.0
5.0
-
5.0
6.0
6.0
-
7.0
-
7.0
8.0
-
7.0
8.0
9.0
10.0
3.5
-
-
S = STANDARD - NO FLOW REGULATOR
4
Non Coated Air Coil
Copper Cupro-nickel
L
M
F
G
C l i m a t e M a s t e r Wa t e r - S o u r c e H e a t P u m p s
Coated Air Coil
Copper Cupro-nickel
C
N
D
E
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Vertical Stack
R e v. : 1 1 / 0 9 / 1 2
Accessory Nomenclature
Return Air Panel
1
2
3
4
5
6
7
8
9
10
11
AVHSG 1 S F S L S
Accessory Return Air Panel
Standard
AVHSG = G-Panel
AVHSH = H-Panel
S = Standard
Revision Level
J = Current Revision (”H” Panel)
L = Current Revision (”G” Panel)
Unit Size
OPTION
TRM
1
2
3
09 & 12
15 & 18
24, 30 & 36
Style
S = G & H Panel - Standard
G = G-Panel - Door W/Grille
K = G-Panel - Door w/Key Locks & Grille
L = G-Panel - Door w/Key Locks
M = H-Panel - w/Motorized Damper
Color
S = Standard (Polar Ice)
Insulation Type
F = Fiberglass
Supply Air Grille
1
2
3
4
5
6
7 8
9 10 11 12 13
14
A816G A SS 1006 O A
Supply Air Grille
Revision Level
A = Current
Grille Deflection
Special Options
A = Single Deflection
B = Double Deflection
C = Double Deflection w/Opposed Damper
O = Standard
Always "O" Unless Special Option
Quoted From Factory
Material & Color
Dimensions
SS = Brushed Aluminum
SP = Painted Aluminum, Polar Ice
1006 = 10"W x 6"H
Available From 10"H x 6"W to 16"W x 14"H
Hose Kit
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5
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Vertical Stack
R e v. : 1 1 / 0 9 / 1 2
General Information
Safety
Warnings, cautions, and notices appear throughout this
manual. Read these items carefully before attempting any
installation, service, or troubleshooting of the equipment.
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.
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.
NOTICE: Notification of installation, operation, or
maintenance information, which is important, but which is
not hazard-related.
WARNING: Indicates a potentially hazardous situation,
which if not avoided could result in death or serious injury.
WARNING!
WARNING! Verify refrigerant type before proceeding.
Units are shipped with R-407c and HFC-410A (EarthPure®)
refrigerants. The unit label will indicate which refrigerant is
provided. The EarthPure® Application and Service Manual
should be read and understood before attempting to service
refrigerant circuits with R-407c or HFC-410A.
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!
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!
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.
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.
6
C l i m a t e M a s t e r Wa t e r - S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Vertical Stack
R e v. : 1 1 / 0 9 / 1 2
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 chassis in an upright
position at all times. Stack units at a maximum of 2 units high.
Store cabinets horizontally, keeping them on their pallets
to protect the risers. Do not stack multipacks. Stack single
cabinets at a maximum of 3 units high.
Prepare cabinet 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. Each cabinet has a tag to indicate the location to be
installed and the riser diameter.
3. Keep the cabinet openings and exposed sheet
metal covered until installation is complete and all
plastering, painting, etc. is finished.
4. Inspect all electrical connections. Connections must
be clean and tight at the terminals.
Prepare chassis for installation as follows:
1. Verify refrigerant tubing is free of kinks or dents and
that it does not touch other unit components.
2. Inspect all electrical connections. Connections must
be clean and tight at the terminals.
3. Remove compressor shipping clips, bracket, or screws.
See chasss pre-installation section for instructions.
4. If chassis is not installed in cabinet, store in
original carton.
CAUTION!
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. All openings in cabinet
must be covered during all stages of construction. Physical
damage and contamination may prevent proper start-up
and may result in costly equipment clean-up.
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.
Examine all pipes, fittings, and valves before installing
any of the system components. Remove any dirt or debris
found in or on these components.
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.
Prior to flushing risers with water, be sure that the
temperature in building will always be above freezing.
Pre-Installation - Installation, Operation, and
Maintenance instructions are provided with each unit.
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.
CAUTION!
NOTICE! Failure to remove shipping brackets from
spring-mounted compressors will cause excessive
noise, and could cause component failure due to
added vibration.
c l i m a t e m a s t e r. c o m
7
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Vertical Stack
R e v. : 1 1 / 0 9 / 1 2
Riser & Cabinet Installation
Figure 1: Vertical Stack Unit Components
WARNING!
1
Supply, Return, and
Condensate Risers
2
Cabinet
3
Optional Frame
CAUTION!
4
Chassis
5
Return Air Panel
CAUTION! To ensure correct riser positioning and to
compensate for variations in floor-to-floor dimensions, do not
allow the unit to unit riser joint to bottom out.
6
Supply Air Grille
7
Thermostat (Not shown)
8
Hoses (Not shown)
Supply and Return Piping
1. Install a drain valve, shut-off/balancing valves, flow
indicators and drain tees at the base of each supply
and return riser to enable system flushing at start-up,
balancing and during servicing.
2. Install strainers at the inlet of each circulating pump.
3. Insulate loop water piping which runs through
nonconditioned areas or outside the building.
Because loop temperature is normally between 60°
F and 90° F, piping does not sweat or suffer heat loss
under ambient conditions.
Condensate Piping - Condensate connection between
the drain pan assembly and condensate riser is factory
installed and trapped in VHS cabinet.
Riser Connections
1. Note: Cabinet and riser assemblies are designed
to accommodate a maximum of 1-½" expansion
and 1-½” contraction. If the calculated riser stack
expansion or contraction exceeds 1-½”, expansion
devices must be provided.
2. Slab slot opening must allow for how cabinet will
be set upright (see submittal). Openings should be
aligned from floor to floor.
Note: All riser modifications necessitated by variations
in floor-to-floor dimensions including cutting off or
extending risers or modifications due to misalignment
is the sole responsibility of the installing contractor.
Cabinet Installation
1. Each cabinet was ordered and built for a specific
location in building. Check tag information before
installing. Tag is located on bottom and lower
front of cabinet. Do not remove and discard shipping
brace until chassis is installed. For proper cabinet/riser
installation, installer must have access to all sides.
8
}
WARNING! To avoid damage from clogged coil surfaces,
clogged motor ventilation openings, seized fan blades and
potential unit failure, DO NOT OPERATE UNIT without
complete enclosure, supply grille, return air grille and filter in
place.
S
R
1
Install Now
}
Install Later
Low Voltage Exit
For Remote Thermostat
(Optional Whip Exit)
High Voltage Entry
6
2
5
Do not
drive screws
into this area
3
(Optional)
4
Service Area
24” Min From
Finished Wall
WARNING!
WARNING! To prevent electrical shorts and drain pan leaks,
assure that screws do not penetrate unit components when
driving screws near the unit control box or drain pan. Do not
allow screws or nails to penetrate chassis, risers, electrical
junction boxes, raceways or to interfere with chassis removal.
To avoid motor or compressor damage, keep wallboard dust
out of the unit.
C l i m a t e M a s t e r Wa t e r - S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Vertical Stack
R e v. : 1 1 / 0 9 / 1 2
2. Move cabinet into position. CAUTION: Keep risers
off the floor while moving cabinet. Look into risers
and remove any debris. From the bottom of the riser,
measure up 2” and mark. See 6B.
3. Raise the cabinet upright, align it and fit 3 risers into
the risers below. The top of each riser is equipped
with a 3" swagged section. Insertion must be 1”
minimum to 2” maximum. Modify risers or use
extensions if needed.
4. Center risers in the slab opening and shim the cabinet
level. Plumb risers in two planes to assure proper unit
operation and condensate drainage.
5. Attach the cabinet assembly to the floor on at least
two sides using sheet metal angles. If risers are
secured to building structure and clamped to cabinet,
mounting angles are not required. A base vibration
dampening pad is recommended to help eliminate
transfer of vibration to the structure. Material of
0.070 to 0.125 inches thick should be applied to the
perimeter of the cabinet base. Additional anchorage
can be provided by installing brackets at the top of
the cabinet.
6. DO NOT attach drywall studs to cabinet. When all
units on a riser are anchored into place, complete riser
joints as follows:
a. Center the horizontal supply and return runouts
in the expansion slots provided in the back
panel of the cabinet assembly. Assure that
runouts are perpendicular to the back panel.
b. Verify that all riser joints are vertically aligned
and that risers penetrate 1” to 2” into the
swaged joint of the riser below. DO NOT let
riser joint bottom out.
c. Braze riser joints with a high-temperature alloy
(such as Phos-copper or Silfos). Soft solder (5050, 60-40 or 85-15) or low-temperature alloys
are NOT suitable for this application.
d. Anchor built-in risers to the building
structure with at least one contact point.
To accommodate vertical expansion and
contraction DO NOT fasten risers rigidly within
the unit.
e. Verify that unit shut-off valves are closed. DO
NOT OPEN VALVES until the system has been
cleaned and flushed.
f. Pressure check riser - locate and repair leaks.
g. Check condensate drain - clean pan if needed.
Slowly pour 1 to 2 quarts of water into pan.
Water should drain freely. check for water on
floor. Note: If cabinet is slave, make sure P-Trap
Hose is connected and clamped to master.
h. Repair or replace any damaged or missing
insulation on risers.
i. To facilitate cleaning and flushing, install the
hose kit at the end farthest from the pump and
connect the ends of the hoses with the riser
flush adapter (Kit - AFL5751). Then open both
valves before pumping fresh water through
the system, close the valves when the system
is clean. Remove the flush adapter before
installing the chassis.
Note: Refer to System Flushing Section of
this manual for more information.
j. Install vents in piping loop as required to
bleed the system of air accumulated during
installation. Optional factory installed air vents
may be ordered.
CAUTION!
CAUTION! ClimateMaster strongly recommends all piping
connections, both internal and external to the unit, be
pressure tested for leakage by an appropriate method prior
to any finishing of the interior space or before access to all
connections is limited. ClimateMaster will not be responsible
or liable for damages from water leaks due to inadequate or
a lack of pressurized leak testing during installation.
Electrical Connections - Complete all electrical
connections prior to enclosing cabinet. See Electrical
Section.
Optional G and H Panel Frame - Position studs in
front of cabinet and install frame in opening. Seal the
gap between the cabinet and the opening. If fresh air
motorized damper assembly is used, field fabricate and
install duct from outside to frame opening. Assembly is
installed later. See instructions with assembly. NOTICE!
Allow for wallboard thickness under frame front flange.
Optional Field Supplied Duct Installation - When return
air is required to enter the unit through openings in a stud
wall, supply and field install an optional duct. Seal duct
against the return air grille. Add a blockoff above and
below the chassis to ensure that all air entering the unit
passes through the filter and refrigerant-to-air coil. Sheet
metal ductwork must not be attached to the cabinet. A
canvas type flexible connection should be used between
the cabinet and the ductwork.
When supply air is ducted from unit, sheet metal ductwork
must not be attached to the cabinet. A canvas-type
flexible connection should be used between the cabinet
and the ductwork.
c l i m a t e m a s t e r. c o m
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Wallboard Installation - NOTICE! If you have the surface
mounted thermostat option, make sure before you
install the wallboard that the 2x4 tile ring is in the correct
orientation. Turn if needed. Check your thermostat.
Install studs and wallboard using conventional
construction methods. Secure drywall to studs with low
profile, pan-head sheet metal screws. Wallboard must not
be fastened to drain pan edges or control box enclosure.
Do not attach drywall studs to cabinet. Do not install
wallboard using adhesive alone.
Vacuum all drywall dust and construction debris from
cabinet insulation coils, drain pans and blower discharge
plenum after cutting out supply and return holes for
grilles. Insulation should be placed between the drywall
and the cabinet for sound attenuation.
When installation is complete, cover all cabinet openings
and exposed sheet metal. (Cardboard from unit shipping
cartons can be used). Do not allow paint or wall texture
over-spray to contact coil, fan or other unit components.
Warranties are void if paint or other foreign debris is
allowed to contaminate internal unit components.
Do not adjust the Sight and Sound X-baffle (see Figure 2).
It is not designed to be used as a damper.
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C l i m a t e M a s t e r Wa t e r - S o u r c e H e a t P u m p s
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Cabinet Installation
Figure 2: Cabinet
Conduit For
Electrical
3” Swage
Sight and
Riser runouts must be
Sound Baffle centered in slot. They may have
moved durring shipping.
Control Box
Loosen clamps and readjust
if needed. Then re-tighten clamps.
Wallboard
Flanges Field
Fabricate
Extensions
If Required
Riser
Runout
Riser
Shutoffs
Shipping
Brace
Do not remove
until framing
and wall board
is complete
Riser Clamp Top and Bottom
Condensate Hose
(7/8” I.D.)
Internally trapped
SIDE VIEW
Supply Grille Installation - Cabinet opening should be
sealed to wall. Use canvas-type flex collar or field supplied
duct extension if needed.
Refer to Table 1 to make sure that the grille size is correct
based on the type and size of the supply air grille.
• Install the grille into the cabinet discharge opening.
Assure that the grille flange rests against the drywall
covering the cabinet. Do not caulk.
• Secure the grille to the drywall with the screws
provided.
Table 1: Supply Grille Sizes and Arrangements
Unit Size
Single Discharge
Double Discharge
Triple Discharge
TRM09
12” x 10”
10” x 6”
N/A
TRM12
12” x 12”
10” x 6”
N/A
TRM15
16” x 12”
14” x 8”
14” x 6”
TRM18
16” x 12”
14” x 8”
14” x 6”
TRM24
N/A
16” x 10”
16” x 6”
TRM30
N/A
16” x 12”
12” x 10”
TRM36
N/A
16” x 14”
16” x 10”
c l i m a t e m a s t e r. c o m
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NOTICE - Drywall openings shown below are for
specific cabinets.
Cut openings for your cabinet.
For correct fit of G Panel:
Drywall (2 layers of 5/8” thick)
attached to front of cabinet
or
1 layer of drywall
and recessed cabinet
1¼”
1¼”
Whip (Optional)
2”
Opening 10” x 12”
For Supply Air Grille
A816GASS1210OA,
(cut openings for your grille)
2”
Opening 2¼ x 3¾
for A9155727
or similar
2½”
88”
Note 2
88”
57½”
6”
Opening for
“G” Panel
57½”
14”
16”
16”
Slab
Slab
17”
17”
Cabinet
Fig. 2B
Cabinet
Fig. 2A
Drywall Openings
for 09SG0P0A1A00DOA
on floor
8” Stand
Option
Drywall Openings
for 09SG0P0A1A00DOA
With 8” Stand and Whip Option
Notes:
1. Whip ends with 9 pin molex connector.
2. Field-supplied 2x4 Box must be a type that the side can be removed so molex can be put inside.
3. Special 25, 35 and 45 foot whips and BX armor available.
4. Special 1” to 10” stands available.
5. When stands are used, make sure riser length and position is calculated correctly. 3” above and tailpiece always
from cabinet. Stand raises everything up.
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Field Supplied Grille with
Insect Screen
Outside Wall
Insulation
Drywall
Field Supplied
Insulated
Ductwork
Field Supply
Flex Duct Collar
or Fabricate Extension.
Seal to Cabinet and Wall.
Cut Hole
in Stud
and Seal.
See IOM
with Kit for
Location
and Size.
Supply Air
Grille Opening
G or H Panel Frame
Motorized Air Damper
Assembled to Frame.
Connect Molex Wire Harness
to Chassis Control Box.
Fig 2C
TOP VIEW
Cabinet with Frame
and Optional Outside Air
Notes:
1. All units with outside air option must use motorized air damper. Damper to be closed when unit not operating.
2. Duct can be on right or left side.
3. On all installations, return air must be 50°F (10°C) to 95°F (35°C).
4. On all installations, the ambient temperature behind interior wall must be above freezing.
5. Prevent condensate on all installations of risers and loop piping insulate if required.
A
B
62½”
1” Min
5½ Max
Fig 2D: H Panel
A
B
09-12
17”
16”
15-18
24-36
20”
19”
24”
23”
Slab
57½”
6”
Fig 2E: G Panel
Slab
Drywall Opening
(with frame)
Drywall Opening
(with frame)
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Piping Installation
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. Factory standard cabinets have shut-off valves and
hoses have swivel-joint fittings to permit chassis
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 2. 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.
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 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.
CAUTION!
CAUTION! Corrosive system water requires corrosion
resistant fittings and hoses, and may require water treatment.
Table 2: 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!
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.
Note: When anti-freeze is used in the loop, ensure
that it is compatible with the Teflon tape or pipe joint
compound that is applied.
CAUTION!
CAUTION! Piping must comply with all applicable codes.
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.
Figure 3: Supply/Return Hose Kit (AHH Series)
Pressure-rated hose assemblies designed specifically for
use with ClimateMaster units should be used. Supply and
return hoses are fitted with swivel-joint fittings at one end
to prevent kinking during installation.
Refer to Figure 3 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.
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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.
Teflon 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 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.
GROUND-LOOP HEAT PUMP APPLICATIONS
CAUTION!
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! Ground loop applications require extended range
equipment and optional refrigerant/water circuit insulation.
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 - All earth loop piping materials
should be limited to polyethylene fusion only for inground 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
per ton [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.
c l i m a t e m a s t e r. c o m
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Ground-Loop Heat Pump Applications
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 - In 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 manager should
be consulted for 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 25 to 22°F [-4 to -6°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
3 for the amount of antifreeze needed. Antifreeze
concentration should be checked from a well mixed
sample using a hydrometer to measure specific gravity.
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.
Table 3: Antifreeze Percentages by Volume
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]
25%
38%
29%
21%
25%
25%
16%
22%
20%
10%
15%
14%
Methanol
100% USP food grade Propylene Glycol
Ethanol*
* Must not be denatured with any petroleum based product
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Ground-Water Heat Pump Applications
Open Loop - Ground Water Systems - 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.
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 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.
Water quantity should be plentiful and of good quality.
Consult Table 4 for water quality guidelines. The unit can
be ordered with either a copper or cupro-nickel water
heat exchanger. Consult Table 4 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
CAUTION!
CAUTION! Many units are installed with a factory or field
supplied manual or electric shut-off valve. DAMAGE WILL
OCCUR if shut-off valve is closed during unit operation. A
high pressure switch must be installed on the heat pump side
of any field provided shut-off valves and connected to the
heat pump controls in series with the built-in refrigerant circuit
high pressure switch to disable compressor operation if water
pressure exceeds pressure switch setting. The field installed
high pressure switch shall have a cut-out pressure of 300
psig and a cut-in pressure of 250 psig. This pressure switch
can be ordered from ClimateMaster with a 1/4” internal flare
connection as part number 39B0005N02.
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.
Water Quality Standards - Table 4 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) and DHW (desuperheater); 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 4.
Expansion Tank and Pump - Use a closed, bladdertype 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 - 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.
c l i m a t e m a s t e r. c o m
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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. 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.
NOTICE! Ground-water applications for commercial
buildings with more than 2-3 units should include
a plate frame heat-exchanger to isolate the heat
pumps from the ground-water and confine heat
exchanger cleanings to one location and lessen
maintenance. Direct use of ground-water may
increase the frequency of heat pump maintenance
and may shorten life expectancy.
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.
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Water Quality Standards
Table 4: Water Quality Standards
Water Quality
Parameter
HX
Material
Closed
Recirculating
Open Loop and Recirculating Well
Scaling Potential - Primary Measurement
Above the given limits, scaling is likely to occur. Scaling indexes should be calculated using the limits below
pH/Calcium Hardness
Method
All
-
pH < 7.5 and Ca Hardness <100ppm
Index Limits for Probable Scaling Situations - (Operation outside these limits is not recommended)
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.
Ryznar
6.0 - 7.5
All
Stability Index
If >7.5 minimize steel pipe use.
-0.5 to +0.5
Langelier
All
If <-0.5 minimize steel pipe use. Based upon 66°C HWG and
Saturation Index
Direct well, 29°C Indirect Well HX
Iron Fouling
Iron Fe 2+ (Ferrous)
(Bacterial Iron potential)
All
Iron Fouling
All
-
<0.2 ppm (Ferrous)
If Fe2+ (ferrous)>0.2 ppm with pH 6 - 8, O2<5 ppm check for iron bacteria.
-
<0.5 ppm of Oxygen
Above this level deposition will occur .
Corrosion Prevention
6 - 8.5
pH
All
Hydrogen Sulfide (H2S)
All
Ammonia ion as hydroxide, chloride,
nitrate and sulfate compounds
All
Monitor/treat as
needed
-
6 - 8.5
Minimize steel pipe below 7 and no open tanks with pH <8
<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.
-
<0.5 ppm
Maximum Allowable at maximum water temperature.
Maximum
Chloride Levels
Copper
Cupronickel
304 SS
316 SS
Titanium
-
10$C
<20ppm
<150 ppm
<400 ppm
<1000 ppm
>1000 ppm
24$C
NR
NR
<250 ppm
<550 ppm
>550 ppm
38 C
NR
NR
<150 ppm
< 375 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.
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.
Rev.: 3/22/2012
Notes:
‡&ORVHG5HFLUFXODWLQJV\VWHPLVLGHQWLILHGE\Dclosed pressurized piping system.
‡5HFLUFXODWLQJRSHQZHOOVVKRXOGREVHUYHWKHRSHQUHFLUFXODWLQJGHVLJQFRQVLGHUDWLRQV
‡15Application not recommended.
‡1RGHVLJQ0D[LPXP
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Electrical Wiring - Line Voltage
WARNING!
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!
CAUTION! Use only copper conductors for field installed
electrical wiring. Unit terminals are not designed to accept
other types of conductors.
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.
WARNING!
WARNING! Disconnect electrical power source to prevent
injury or death from electrical shock.
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.
Blower Speed Selection – Units with PSC Motor
PSC (Permanent Split Capacitor) blower fan speed can
be changed by moving the blue wire on the fan motor
terminal block to the desired speed as shown in Figure
4. Most ClimateMaster units are shipped on the medium
speed tap. Consult submittal data or engineering
design guide for specific unit airflow tables. Typical unit
design delivers rated airflow at nominal static on medium
speed and rated airflow at a higher static on high speed
for applications where higher static is required. Low
speed will deliver approximately 85% of rated airflow.
An optional high static blower is available on some 816
models.
Blower Speed Selection – Units with ECM-X Motor
Fan speeds can be changed by moving wires on motor
terminal block shown in Fig. 4A. Use information in Table
5 to set CFM for your static.
Special Note for AHRI Testing: To achieve rated airflow
for AHRI testing purposes on all PSC products, it is necessary to change the fan speed to “HI” speed, for ECM-X
motor products TRM15 and 24 wire to medium low (2),
TRM18 and 30 wire to medium (3) and TRM36 wire to
medium high (4). When the heat pump has experienced
less than 100 operational hours and the coil has not had
sufficient time to be “seasoned”, it is necessary to clean
the coil with a mild surfactant such as Calgon to remove
the oils left by manufacturing processes and enable the
condensate to properly “sheet” off of the coil.
Figure 4: PSC Motor Speed Selection
/MVY/PNOZWLLKMHU
4MVY4LKP\TZWLLKMHU
3MVY3V^ZWLLKMHU
;944LKP\TPZMHJ[VY`ZL[[PUN
Power Connection - Line voltage connection is made
by connecting the incoming line voltage wires to the “L”
side of the contactor.
208 Volt Operation - All commercial 208-230 Volt units
are factory wired for 208 Volt operation. If supply voltage
is 230V, then the transformer must be rewired to the 230V
tap as illustrated on the wiring diagram by switching the
red (208V) and the orange (230V) wires at the contactor
terminal.
-HU4V[VY
Figure 4A: ECM-X Motor Speed Selection
)32
>/;
3PUL=VS[HNL
)95
=*VT
3PUL=VS[HNL
* 3 . 5
36
43 4,+ 4/
/0
9,+
20
)3<
C l i m a t e M a s t e r Wa t e r - S o u r c e H e a t P u m p s
:WLLK;(7:
-PLSK9L^PYL
0M5LLKLK
THE SMART SOLUTION FOR ENERGY EFFICIENCY
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Electrical Wiring - Low Voltage
Thermostat Connections - The thermostat should be
wired directly to the CXM or DXM board. See “Electrical
– Thermostat” for specific terminal connections. Review
the appropriate AOM (Application, Operation and Maintenance) manual for units with DDC controls.
Low Water Temperature Cutout Selection - The CXM/
DXM control allows the field selection of low water (or
water-antifreeze solution) temperature limit by clipping
jumper JW3, which changes the sensing temperature associated with thermistor FP1. Note that the FP1 thermistor is located on the refrigerant line between the coaxial
heat exchanger and expansion device (TXV or cap tube).
Therefore, FP1 is sensing refrigerant temperature, not
water temperature, which is a better indication of how
water flow rate/temperature is affecting the refrigeration
circuit.
Figure 5: FP1 Limit Setting
JW3-FP1 jumper
should be clipped
for low temperature operation
CXM PCB
JW3 should never be clipped for equipment or systems
without antifreeze.
The factory setting for FP1 is for systems using water
(30°F [-1.1°C] refrigerant temperature). In low water
temperature (extended range) applications with
antifreeze (most ground loops), jumper JW3 should be
clipped as shown in Figure 5 to change the setting to
10°F [-12.2°C] refrigerant temperature, a more suitable
temperature when using an antifreeze solution. All
ClimateMaster units operating with entering water
temperatures below 59°F [15°C] must include the
optional water/refrigerant circuit insulation package to
prevent internal condensation.
c l i m a t e m a s t e r. c o m
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CLIMATEMASTER WATER-SOURCE HEAT PUMPS
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Blower Performance Data
Table 5: TRM with ECM-X Motor
Model
TRM15
TRM18
TRM24
TRM30
TRM36
Motor
TAP
HI
MED HI
MED
MED LOW*
LOW
HI
MED HI
MED*
MED LOW
LOW
HI
MED HI
MED
MED LOW*
LOW
HI
MED HI
MED*
MED LOW
LOW
HI
MED HI*
MED
MED LOW
LOW
Rated
Airflow
Min
CFM
600
650
900
0.0
0.1
416
650
600
500
640
590
480
480
650
600
500
640
590
480
596
900
850
1150
1290
798
820
1,200
1,150
1,000
900
1290
1190
860
820
870
770
1200
1120
1070
950
850
1260
1160
840
Airflow (cfm) at External Static Pressure (in. wg)
0.2
0.25
0.3
0.35
0.4
0.5
0.6
650
590
650
635
620
560
630
615
600
595
590
520
575
550
540
535
525
425
470
460
450
435
423
675
650
590
680
650
635
620
560
630
615
600
595
590
520
575
550
540
535
525
470
460
450
435
423
925
875
840
920
900
840
800
925
900
880
850
815
750
700
850
820
790
760
740
645
730
690
650
630
610
1150
1100 1050 1030
995
950
925
1050 1010
975
950
920
880
830
1020
990
950
920
880
800
910
880
860
840
800
800
1310 1290 1260 1240 1170 1090 1025
1230 1150
1120
1100 1070 1030
960
1140 1038 1010
990
950
910
860
825
800
All units AHRI/ISO/ASHRAE 13256-1 rated on * speed motor TAP.
Airflow is rated at lowest Voltage if unit is dual Voltage rated, i.e. 208V for 208-230V units.
Unit must have DXM. Factory shipped on low and medium tap. Field select other taps if needed.
22
C l i m a t e M a s t e r Wa t e r - S o u r c e H e a t P u m p s
0.7
0.8
800
750
620
750
700
875
800
840
920
880
820
840
805
THE SMART SOLUTION FOR ENERGY EFFICIENCY
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Thermostat Installation
Installation of Optional Wall-Mounted Thermostat The unit can be furnished with a 24-volt surface mounted
ACO or MCO control circuit or a remote 24-volt ACO
or MCO thermostat. A typical field connection diagram
is shown in Figure 6. Refer to instructions provided with
remote thermostat for wiring instructions.
WARNING! Zone integrity must be maintained to efficiently
control units or groups of units. Unless zones of control are
considered and accounted for, adjacent units may operate in
heating and cooling modes simultaneously.
Low-voltage wiring between the unit and the wall
thermostat must comply with all applicable electrical
codes (i.e., NEC and local codes), and be completed
before the unit is installed. Use of four-wire, color-coded,
low-voltage cable is recommended.
Table 6 below lists recommended wire sizes and lengths
to install the thermostat. The total resistance of lowvoltage wiring must not exceed 1 ohm. Any resistance
in excess of 1 ohm may cause the control to malfunction
because of high voltage drop.
Figure 6: Typical Field Connections for units
with Wall-Mounted 24V Thermostat
A9155 Series Thermostats have 6” pigtail ending with
9-pin Molex. This allows an easy connection to either
surface mount or remote with whip option. AT Series
Thermostats have to be wired to screw terminals under
the cover.
CXM
PDB
O
Y
G
UNIT
JUNCTION
BOX
A
L2
Grd
L1
R
{
B
WARNING!
TRM cabinets with optional electric heat require
thermostat with minimum 2 stages of heat with
emergency heat mode, similar to ATP32U03. Stage 1 is
heat pump only. Stage 2 is heat pump with supplemental
electric heat and emergency heat is electric heat only.
Table 6: Recommended Thermostat Wire Sizes
Thermostat
R
G
Y
O
WARNING!
WARNING! Disconnect electrical power source to prevent
injury or death from electrical shock.
WIRE SIZE
MAX. WIRE LENGTH
22-Gauge
30 Feet
20-Gauge
50 Feet
18-Gauge
75 Feet
16-Gauge
125 Feet
14-Gauge
200 Feet
*Physical distance from thermostat to unit
CAUTION!
CAUTION! Use copper conductors only to prevent
equipment damage
Legend:
A = Two power wires and ground for single-phase units.
B = Low voltage (24 vac) up to 9 wires required.
Check your thermostat.
Thermostat - 1H/1C, MCO or ACO
MCO = Manual changeover thermostat.
ACO = Automatic changeover thermostat.
Note: All customer-supplied wiring to be copper only,
and must conform to NEC and local electrical codes.
Wiring shown with dashed lines must be field-supplied
and field-installed.
c l i m a t e m a s t e r. c o m
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CLIMATEMASTER WATER-SOURCE HEAT PUMPS
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Chassis Pre-Installation
1. Check chassis data plate. Verify chassis is correct for
cabinet.
2. Check for any shipping or handling damage. Make
repairs or adjustments.
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. Replace any panels or covers removed for steps 2-4.
6. Remove compressor shipping clips, brackets or screws
per steps below. Always keep chassis upright.
The chassis is now ready for installation.
All TRM models (except TRM15 G Voltage) are ready for installation
Figure 13: TRM 15 G Voltage compressor shipping screw removal
Shipping Screws
Step 1: Remove the six screws from the very bottom of the sides, three
from each side as shown above.
The chassis is now ready for installation.
24
C l i m a t e M a s t e r Wa t e r - S o u r c e H e a t P u m p s
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Start-Up Preparation
System Cleaning and Flushing - Cleaning and flushing
the unit is the single most important step to ensure
proper start-up and continued efficient operation of the
system. Follow the instructions below to properly clean
and flush the system: Do not flush through chassis koax.
WARNING!
WARNING! To prevent injury or death due to electrical shock
or contact with moving part, open unit disconnect before
servicing unit.
1. Verify that electrical power to the unit is disconnected.
2. Verify that supply and return riser service valves are
closed at each unit.
3. Fill the system with water, leaving the air vents open.
Bleed all air from the system but do not allow the
system to over flow. Check the system for leaks and
make any required repairs.
4. Adjust the water and air level in the expansion tank.
5. With strainers in place, (ClimateMaster recommends a
strainer with a #20 stainlees steel wire mesh) start the
pumps. Systematically check each vent to ensure that
all of the air is bled from the system.
6. Verify that make-up water is available and adjusted to
properly replace any space remaining when all air is
evacuated. Check the system for leaks and make any
additional repairs required.
7. Set the boiler to raise the loop temperature to
approximately 85°F [29.4°C]. Open the drain at the
lowest point in the system. Verify that make-up water
replacement rate equals rate of bleed. Continue to
bleed the system until the water appears clean or for
at least three hours whichever is longer.
8. Completely drain the system.
6. Refill the system and add in a proportion of trisodium
phosphate approximately one pound per 150 gallons
[0.4kg per 500 liters] of water. Reset the boiler to raise
the loop temperature to about 100°F [37.8°C].
7. Circulate the solution for between 8 to 24 hours. At
the end of this period, shut off the circulating pump
and drain the solution. Repeat system cleaning if
desired.
8. Open the supply and return riser service valves at each
unit. Refill the system and bleed off all air.
9. Test the system pH with litmus paper. The system
water should have a pH of 6 to 8.5. Add chemicals as
appropriate to maintain pH levels.
10. When the system is successfully cleaned, flushed,
refilled, and bled, check the main system panels,
safety cutouts, and alarms. Set controls to properly
maintain loop temperature.
Figure 14: Typical piping arrangement for flushing risers.
To
Waste
Flush risers as follows: (Refer to Figure 14).
1. Close shut-off valves at each cabinet on the riser
except the shut-off valve on the top floor.
2. At the top floor, install the hose kit and connect the
ends of the hoses with the factory riser flush adapter
from AFL5751.
3. Flush solution through supply riser. Note: The solution
passes through the top floor connection down the
return riser.
4. When the building has more than 10 floors, connect the
supply and return runouts on the top two floors to divide
the water flow and reduce pressure drop at the pump.
5. Repeat flushing procedure for each set of risers in
the building.
CAUTION!
CAUTION! Do Not use "Stop-Leak" or any similar chemical
agent in this system. Addition of these chemicals to the loop
water can foul the system and can inhibit unit operation.
CAUTION!
CAUTION! To avoid possible damage to piping systems
constructed of plastic piping, DO NOT allow loop temperature
to exceed 110°F [43.3°C].
c l i m a t e m a s t e r. c o m
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CLIMATEMASTER WATER-SOURCE HEAT PUMPS
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Hose Kit & Chassis Installation
Hose Kit Installation - After cabinets are installed,
remove the upper and lower panels. SAVE THESE FOR
RE-INSTALLATION AFTER THE CHASSIS IS INSTALLED!
The cabinet has one or two shipping braces across the
front (Figure 15) remove and discard both braces.
Figure 16
Step 1: Remove (2) Panels and Shipping Braces
Figure 15
Locate the valves inside the unit cabinet marked WATER
IN and WATER OUT (Figure 17). Apply Teflon tape to the
male pipe thread end of each hose (Figure 16). Attach
the hoses to the water valve. Always use a back-up
wrench when tightening the hose to the valve
(Figure 18).
Remove
WARNING!
WARNING! Under no circumstances should any part of the
hose itself be gripped or twisted by hand, pliers, channel
locks or any other tool. Leakage or bursting may occur!
Always use a back-up wrench when tightening the hose.
Figure 17
Step 2: Attach the Flex Hoses. Unpack and examine
hose kit. Remove all shipping and/or packing material
such as rubber bands, plastic caps, and styrofoam. Hose
kit should contain (2) hoses (Figure 16).
CAUTION!
CAUTION! If the risers are under pressure, do not open shut
off valves until installation is complete!
26
C l i m a t e M a s t e r Wa t e r - S o u r c e H e a t P u m p s
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Figure 18
WARNING!
WARNING! Do Not Remove Valve without first draining the
risers below cabinet level.
Step 2: Attach Flex Hoses. Let the universal ends of the
hoses hang inside the cabinet for now. (Figure 22).
Note: Be sure the valve handles are in a position that
enables them to be opened and closed. Check the
swivel ends of the hoses (Figure 21). Gaskets must be
in the hose for proper seal.
Figure 19
Figure 21
Option to Step 2
If you remove the valves to attach the hoses, be sure the
0-ring is in the valve before attaching to the union in the
cabinet.
Note: The valve union is to be hand tight plus a 1/4
turn.
Figure 22
Figure 20
c l i m a t e m a s t e r. c o m
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CLIMATEMASTER WATER-SOURCE HEAT PUMPS
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Step 3: Attach to the Chassis. Slide the chassis part
way into the cabinet. Match the WATER IN hose to the
WATER IN tube on the chassis and the WATER OUT hose
to the WATER OUT tube. Tighten the swivel connection
keeping the copper tube parallel to the sides of the
chassis, then tighten the hose to the copper making
sure the hose hangs straight without twisting or turning
(Figure 23).
Figure 24
Note: The rule of thumb for tightening the copper
union and the hose union is hand tight plus 1/4 turn.
WARNING!
WARNING! Under no circumstances should any part of the
hose itself be gripped or twisted by hand, pliers, channel
locks or any other tool. Leakage or bursting may occur!
Always use a back-up wrench when tightening the hose.
Chassis and Hose Kit Installation
Install the Chassis as follows:
1. Verify that the shut-off/balancing valve in the return
line and the shut-off valve in the supply line are
closed.
2. Flush system following the procedure in Preparation
for Start-up Section of this manual.
3. When the system is clean and flushed, open the unit
water valves and check piping for leaks.
4. A flexible electrical cable terminating in quickconnect plugs is provided in chassis.
5. Complete electrical connections between cabinet
and chassis by mating the quick-connect plugs on
the chassis cable to the plugs located in the bottom
surface of the blower deck, directly under the
control box.
6. Install the air filter in the chassis by inserting the
bottom edge of the filter into the bottom filter
bracket. Push filter down until the top can be
pushed into place, then latch the filter in place with
the two top latches.
Figure 23
This!
28
Check all connections for tightness including the ones
above the installed valves (valve union). The chassis
should slide into the cabinet without restriction (Figure 24).
Not This!
C l i m a t e M a s t e r Wa t e r - S o u r c e H e a t P u m p s
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7. Before installing the return air/access panel, perform
the following checks:
a. Ensure that fan wheel rotates freely and does
not rub against housing. If rough handling
during shipping has caused fan wheel to shift,
adjust as necessary.
b. Verify that water piping connections to the chassis
are complete and that unit service valves which
were closed during flushing have been opened.
c. Verify that power between the cabinet and
chassis is properly connected.
d. Assure that the unit drain is properly
positioned, secured and not blocked.
e. Verify that the nuts used to secure the blower
assembly to the fan deck are tight. After the
system has been filled and system pump is
started, all connections should be re-checked
for water leaks. ClimateMaster WILL NOT be
responsible or liable for damage caused by
water leaks at any field water connections!
8. Re-attach the upper and lower panels as shown in
Figure 25.
9. Install the cabinet return air/access panel. See
installation instructions shipped with return air/access
panel for detailed information.
WARNING!
WARNING! Do Not Open Valves to chassis until system has
been purged!
IMPORTANT!
IMPORTANT! After the system has been filled and system
pump is started, all connections should be rechecked for
water leaks. ClimateMaster WILL NOT be responsible or
liable for damage caused by water leaks at any field water
connections!
Figure 25
c l i m a t e m a s t e r. c o m
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CLIMATEMASTER WATER-SOURCE HEAT PUMPS
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TRM Series Wiring Diagram Matrix
Only CXM and DXM diagrams for ACO/MCO Controls are presented in this IOM.
Other diagrams can be located online at climatemaster.com. Click ‘Commercial’ (go to ‘Quick
Links’ in the upper right) using the part numbers presented below.
Cabinet
Model
Refrigerant
Wiring Diagram
Part Number
96B0135N61
96B0135N67
TRM09-36
PSC Motor
96B0135N65
96B0135N62
96B0135N68
96B0135N66
TRM09-12
ECM Motor
TRM15-36
ECM-X Motor
TRM09-36
Electric Heater
EarthPure®
(HFC-410A)
96B0173N27
96B0173N25
96B0173N26
96B0135N92
96B0135N98
96B0135N96
96B0135N70
Electrical
208-230/60/1,
265/60/1
Control
ACO/MCO
CXM
LON
MPC
ACO/MCO
208-230/60/1,
265/60/1
208-230/60/1,
265/60/1
LON
MPC
ACO/MCO
LON
DXM
208-230/60/1
265/60/1
208-230/60/1
265/60/1
MPC
ACO/MCO
LON
MPC
ACO/MCO
Chassis
Model
Refrigerant
Wiring Diagram Part Number
Electrical
Control
Agency
TRM09-36
EarthPure®
(HFC-410A)
96B0036N18
208-230/60/1,
265/60/1
CXM, DXM
ETL
30
Agency
C l i m a t e M a s t e r Wa t e r - S o u r c e H e a t P u m p s
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Typical Wiring Diagram
Single Phase TRM Units with CXM Controller
c l i m a t e m a s t e r. c o m
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CLIMATEMASTER WATER-SOURCE HEAT PUMPS
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Typical Wiring Diagram
Single Phase TRM Units with DXM Controller
32
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CXM Controls
CXM Control - For detailed control information, see
CXM or DXM Application, Operation and Maintenance
(AOM) manual (part # 97B0003N12 or part #97B0003N13).
Field Selectable Inputs - Test mode: Test mode allows
the service technician to check the operation of the
control in a timely manner. By momentarily shorting the
test terminals, the CXM control enters a 20 minute test
mode period in which all time delays are sped up 15
times. Upon entering test mode, the status LED will flash
a code representing the last fault. For diagnostic ease at
the thermostat, the alarm relay will also cycle during test
mode. The alarm relay will cycle on and off similar to the
status LED to indicate a code representing the last fault,
at the thermostat. Test mode can be exited by shorting
the test terminals for 3 seconds.
Retry Mode: If the control is attempting a retry of a fault,
the status LED will slow flash (slow flash = one flash every
2 seconds) to indicate the control is in the process of
retrying.
Field Configuration Options - Note: In the following
field configuration options, jumper wires should be
clipped ONLY when power is removed from the CXM
control.
Water coil low temperature limit setting: Jumper 3 (JW3FP1 Low Temp) provides field selection of temperature
limit setting for FP1 of 30°F or 10°F [-1°F or -12°C]
(refrigerant temperature).
Not Clipped = 30°F [-1°C]. Clipped = 10°F [-12°C].
Air coil low temperature limit setting: Jumper 2 (JW2FP2 Low Temp) provides field selection of temperature
limit setting for FP2 of 30°F or 10°F [-1°F or -12°C]
(refrigerant temperature). Note: This jumper should
only be clipped under extenuating circumstances, as
recommended by the factory.
Not Clipped = 30°F [-1°C]. Clipped = 10°F [-12°C].
Alarm relay setting: Jumper 1 (JW1-AL2 Dry) provides field
selection of the alarm relay terminal AL2 to be jumpered
to 24VAC or to be a dry contact (no connection).
Not Clipped = AL2 connected to R. Clipped = AL2 dry
contact (no connection).
DIP Switches - Note: In the following field configuration
options, DIP switches should only be changed when
power is removed from the CXM control.
DIP switch 2: Stage 2 Selection - provides selection of
whether compressor has an “on” delay. If set to stage
2, the compressor will have a 3 second delay before
energizing. Also, if set for stage 2, the alarm relay will
NOT cycle during test mode.
On = Stage 1. Off = Stage 2
DIP switch 3: Not Used.
DIP switch 4: DDC Output at EH2 - provides selection for
DDC operation. If set to “DDC Output at EH2,” the EH2
terminal will continuously output the last fault code of
the controller. If set to “EH2 normal,” EH2 will operate as
standard electric heat output.
On = EH2 Normal. Off = DDC Output at EH2.
Note: Some CXM controls only have a 2 position DIP
switch package. If this is the case, this option can be
selected by clipping the jumper which is in position 4
of SW1.
Jumper not clipped = EH2 Normal. Jumper clipped =
DDC Output at EH2.
DIP switch 5: Factory Setting - Normal position is “On.”
Do not change selection unless instructed to do so by
the factory.
Table 7a: CXM/DXM LED And Alarm Relay Operations
Description of Operation
LED
Alarm Relay
Normal Mode
Normal Mode with UPS Warning
CXM is non-functional
Fault Retry
Lockout
Over/Under Voltage Shutdown
On
On
Off
Slow Flash
Fast Flash
Slow Flash
Open
Cycle (closed 5 sec., Open 25 sec.)
Open
Open
Closed
Open (Closed after 15 minutes)
Test Mode - No fault in memory
Flashing Code 1
Cycling Code 1
Test Mode - HP Fault in memory Flashing Code 2
Cycling Code 2
Test Mode - LP Fault in memory
Flashing Code 3
Cycling Code 3
Test Mode - FP1 Fault in memory Flashing Code 4
Cycling Code 4
Test Mode - FP2 Fault in memory Flashing Code 5
Cycling Code 5
Test Mode - CO Fault in memory Flashing Code 6
Cycling Code 6
Test Mode - Over/Under
shutdown in memory
Flashing Code 7
Cycling Code 7
Test Mode - UPS in memory
Flashing Code 8
Cycling Code 8
Test Mode - Swapped Thermistor Flashing Code 9
Cycling Code 9
-Slow Flash = 1 flash every 2 seconds
-Fast Flash = 2 flashes every 1 second
-Flash code 2 = 2 quick flashes, 10 second pause, 2 quick
flashes, 10 second pause, etc.
-On pulse 1/3 second; off pulse 1/3 second
DIP switch 1: Unit Performance Sentinel Disable provides field selection to disable the UPS feature.
On = Enabled. Off = Disabled.
c l i m a t e m a s t e r. c o m
33
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Vertical Stack
R e v. : 1 1 / 0 9 / 1 2
DXM Controls
DXM Control - For detailed control information, see
CXM AOM (part #97B0003N12), DXM AOM (part
#97B0003N13), Lon controller AOM (part #97B0013N01)
or MPC AOM (part # 97B0031N01).
Water coil low temperature limit setting: Jumper
3 (JW3-FP1 Low Temp) provides field selection of
temperature limit setting for FP1 of 30°F or 10°F [-1°F or
-12°C] (refrigerant temperature).
Not Clipped = 30°F [-1°C]. Clipped = 10°F [-12°C].
Table 7b: DXM LED And Alarm Relay Operations
Air coil low temperature limit setting: Jumper 2 (JW2FP2 Low Temp) provides field selection of
6WDWXV/('
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'HVFULSWLRQRI
$ODUP5HOD\
temperature limit setting for FP2 of 30°F or
UHG
2SHUDWLRQ
JUHHQ
\HOORZ
10°F [-1°F or -12°C] (refrigerant temperature).
1RUPDOPRGH
2Q
2II
2SHQ
Note: This jumper should only be clipped
&\FOHFORVHGVHF
1RUPDOPRGHZLWK836
2Q
)ODVKLQJ&RGH
RSHQVHF
under extenuating circumstances, as
';0LVQRQIXQFWLRQDO
2II
2II
2II
2SHQ
recommended by ClimateMaster technical
)DXOW5HWU\
6ORZ)ODVK
)ODVKLQJIDXOWFRGH
2SHQ
/RFNRXW
)DVW)ODVK
)ODVKLQJIDXOWFRGH
&ORVHG
services.
7HVW0RGH
2Q
Not Clipped = 30°F [-1°C]. Clipped = 10°F
1LJKW6HWEDFN
)ODVKLQJ&RGH
[-12°C].
(6'
)ODVKLQJ&RGH
,QYDOLG 7VWDW,QSXWV
)ODVKLQJ&RGH
Alarm relay setting: Jumper 4 (JW4-AL2 Dry)
+3)DXOW
6ORZ)ODVK
)ODVKLQJ&RGH
2SHQ
provides field selection of the alarm relay
/3)DXOW
6ORZ)ODVK
)ODVKLQJ&RGH
2SHQ
terminal AL2 to be jumpered to 24VAC or to
)3)DXOW
6ORZ)ODVK
)ODVKLQJ&RGH
2SHQ
)3)DXOW
6ORZ)ODVK
)ODVKLQJ&RGH
2SHQ
be a dry contact (no connection).
&2)DXOW
6ORZ)ODVK
)ODVKLQJ&RGH
2SHQ
Not Clipped = AL2 connected to R.
2SHQFORVHGDIWHU
2YHU8QGHU9ROWDJHV
6ORZ)ODVK
)ODVKLQJ&RGH
Clipped = AL2 dry contact
PLQXWHV
(no connection).
-Slow Flash = 1 flash every 2 seconds
Low pressure normally open: Jumper 1 (JW1-LP norm
-Fast Flash = 2 flashes every 1 second
open) provides field selection for low pressure input to
-Flash code 2 = 2 quick flashes, 10 second pause, 2 quick
be normally closed or normally open.
flashes, 10 second pause, etc.
Not Clipped = LP normally closed. Clipped = LP normally
-On pulse 1/3 second; off pulse 1/3 second
open.
Field Selectable Inputs - Test mode: Test mode allows
the service technician to check the operation of the
control in a timely manner. By momentarily shorting the
test terminals, the DXM control enters a 20 minute test
mode period in which all time delays are sped up 15
times. Upon entering test mode, the status LED will flash
a code representing the last fault. For diagnostic ease at
the thermostat, the alarm relay will also cycle during test
mode. The alarm relay will cycle on and off similar to the
status LED to indicate a code representing the last fault,
at the thermostat. Test mode can be exited by shorting
the test terminals for 3 seconds.
Retry mode: If the control is attempting a retry of a fault,
the status LED will slow flash (slow flash = one flash every
2 seconds) to indicate the control is in the process of
retrying.
Field Configuration Options
Note: In the following field configuration options, jumper
wires should be clipped ONLY when power is removed
from the DXM control.
34
DIP Switches - Note: In the following field
configuration options, DIP switches should only be
changed when power is removed from the DXM
control.
DIP Package #1 (S1) - DIP Package #1 has 8 switches
and provides the following setup selections:
1.1 - Unit Performance Sentinel (UPS) disable: DIP Switch
1.1 provides field selection to disable the UPS feature.
On = Enabled. Off = Disabled.
1.2 - Compressor relay staging operation: DIP 1.2
provides selection of compressor relay staging operation.
The compressor relay can be selected to turn on with
a stage 1 or stage 2 call from the thermostat. This
is used with dual stage units (2 compressors where
2 DXM controls are being used) or with master/
slave applications. In master/slave applications,
each compressor and fan will stage according to
its appropriate DIP 1.2 setting. If set to stage 2, the
compressor will have a 3 second on-delay before
energizing during a Stage 2 demand. Also, if set for stage
2, the alarm relay will NOT cycle during test mode.
On = Stage 1. Off = Stage 2.
C l i m a t e M a s t e r Wa t e r - S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Vertical Stack
R e v. : 1 1 / 0 9 / 1 2
1.3 - Thermostat type (heat pump or heat/cool): DIP 1.3
provides selection of thermostat type. Heat pump or
heat/cool thermostats can be selected. When in heat/
cool mode, Y1 is the input call for cooling stage 1; Y2 is
the input call for cooling stage 2; W1 is the input call for
heating stage 1; and O/W2 is the input call for heating
stage 2. In heat pump mode, Y1 is the input call for
compressor stage 1; Y2 is the input call for compressor
stage 2; W1 is the input call for heating stage 3 or
emergency heat; and O/W2 is the input call for reversing
valve (heating or cooling, depending upon DIP 1.4).
On = Heat Pump. Off = Heat/Cool.
1.4 - Thermostat type (O/B): DIP 1.4 provides selection of
thermostat type for reversing valve activation. Heat pump
thermostats with “O” output (reversing valve energized
for cooling) or “B” output (reversing valve energized for
heating) can be selected with DIP 1.4.
On = HP stat with “O” output for cooling. Off = HP stat
with “B” output for heating.
1.5 - Dehumidification mode: DIP 1.5 provides
selection of normal or dehumidification fan mode. In
dehumidification mode, the fan speed relay will remain
off during cooling stage 2. In normal mode, the fan
speed relay will turn on during cooling stage 2.
On = Normal fan mode. Off = Dehumidification mode.
1.6 - DDC output at EH2: DIP 1.6 provides selection for
DDC operation. If set to “DDC Output at EH2,” the EH2
terminal will continuously output the last fault code of
the controller. If set to “EH2 normal,” EH2 will operate as
standard electric heat output.
On = EH2 Normal. Off = DDC Output at EH2.
1.7 - Boilerless operation: DIP 1.7 provides selection of
boilerless operation. In boilerless mode, the compressor
is only used for heating when FP1 is above the
temperature specified by the setting of DIP 1.8. Below
DIP 1.8 setting, the compressor is not used and the
control goes into emergency heat mode, staging on EH1
and EH2 to provide heating.
On = normal. Off = Boilerless operation.
1.8 - Boilerless changeover temperature: DIP 1.8
provides selection of boilerless changeover temperature
set point. Note that the FP1 thermistor is sensing
refrigerant temperature between the coaxial heat
exchanger and the expansion device (TXV or cap tube).
Therefore, the 50°F [10°C] setting is not 50°F [10°C] water,
but approximately 60°F [16°C] EWT.
On = 50°F [10°C]. Off = 40°F [16°C].
DIP Package #2 (S2) - DIP Package #2 has 8 switches and
provides the following setup selections:
2.1 - Accessory1 relay personality: DIP 2.1 provides
selection of ACC1 relay personality (relay operation/
characteristics). See table 6c for description of
functionality.
2.2 - Accessory1 relay personality: DIP 2.2 provides
selection of ACC 1 relay personality (relay operation/
characteristics). See table 6c for description of
functionality.
2.3 - Accessory1 relay personality: DIP 2.3 provides
selection of ACC 1 relay options. See table 6c for
description of functionality.
2.4 - Accessory2 relay personality: DIP 2.4 provides
selection of ACC 2 relay personality (relay operation/
characteristics). See table 6c for description of
functionality.
2.5 - Accessory2 relay personality: DIP 2.5 provides
selection of ACC 2 relay personality (relay operation/
characteristics). See table 6c for description of
functionality.
2.6 - Accessory2 relay personality: DIP 2.6 provides
selection of ACC 2 relay options. See table 6c for
description of functionality.
2.7 - Auto dehumidification fan mode or high fan mode:
DIP 2.7 provides selection of auto dehumidification fan
mode or high fan mode. In auto dehumidification mode,
the fan speed relay will remain off during cooling stage 2
IF the H input is active. In high fan mode, the fan enable
and fan speed relays will turn on when the H input is active.
On = Auto dehumidification mode. Off = High fan mode.
2.8 - Special factory selection: DIP 2.8 provides special
factory selection. Normal position is “On.” Do not change
selection unless instructed to do so by the factory.
Table 7c: Accessory DIP Switch Settings
DIP 2.1
DIP 2.2
DIP 2.3
ACC1 Relay Option
On
On
On
Cycle with fan
Off
On
On
Digital NSB
On
Off
On
Water Valve - slow opening
On
On
Off
OAD
Off
Off
Off
Reheat Option - Humidistat
Off
On
Off
Reheat Option - Dehumidistat
DIP 2.4
DIP 2.5
DIP 2.6
ACC2 Relay Option
On
On
On
Cycle with compressor
Off
On
On
Digital NSB
On
Off
On
Water Valve - slow opening
On
On
Off
OAD
All other DIP combinations are invalid
c l i m a t e m a s t e r. c o m
35
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Vertical Stack
R e v. : 1 1 / 0 9 / 1 2
Safety Features - CXM/DXM Controls
Safety Features – CXM/DXM Control
The safety features below are provided to protect
the compressor, heat exchangers, wiring and other
components from damage caused by operation outside
of design conditions.
Anti-short cycle protection: The control features a 5
minute anti-short cycle protection for the compressor.
Note: The 5 minute anti-short cycle also occurs at power up.
Random start: The control features a random start upon
power up of 5-80 seconds.
Fault Retry: In Fault Retry mode, the Status LED begins
slowly flashing to signal that the control is trying to
recover from a fault input. The control will stage off the
outputs and then “try again” to satisfy the thermostat
input call. Once the thermostat input call is satisfied,
the control will continue on as if no fault occurred. If 3
consecutive faults occur without satisfying the thermostat
input call, the control will go into “lockout” mode. The
last fault causing the lockout will be stored in memory
and can be viewed at the “fault” LED (DXM board) or by
going into test mode (CXM board). Note: FP1/FP2 faults
are factory set at only one try.
Lockout: In lockout mode, the status LED will begin fast
flashing. The compressor relay is turned off immediately.
Lockout mode can be “soft” reset by turning off the
thermostat (or satisfying the call). A “soft” reset keeps
the fault in memory but resets the control. A “hard”
reset (disconnecting power to the control) resets the
control and erases fault memory.
Lockout with emergency heat: While in lockout mode,
if W becomes active (CXM), emergency heat mode will
occur. If DXM is configured for heat pump thermostat
type (DIP 1.3), emergency heat will become active if O/
W2 is energized.
High pressure switch: When the high pressure switch
opens due to high refrigerant pressures, the compressor
relay is de-energized immediately since the high pressure
switch is in series with the compressor contactor coil. The
high pressure fault recognition is immediate (does not
delay for 30 continuous seconds before de-energizing
the compressor).
High pressure lockout code = 2
Example: 2 quick flashes, 10 sec pause, 2 quick flashes, 10
sec. pause, etc.
Low pressure switch: The low pressure switch must be
open and remain open for 30 continuous seconds during
“on” cycle to be recognized as a low pressure fault. If
the low pressure switch is open for 30 seconds prior to
compressor power up it will be considered a low pressure
(loss of charge) fault. The low pressure switch input is
bypassed for the initial 120 seconds of a compressor
run cycle.
Low pressure lockout code = 3
36
Water coil low temperature (FP1): The FP1 thermistor
temperature must be below the selected low
temperature limit setting for 30 continuous seconds
during a compressor run cycle to be recognized as a
FP1 fault. The FP1 input is bypassed for the initial 120
seconds of a compressor run cycle. FP1 is set at the
factory for one try. Therefore, the control will go into
lockout mode once the FP1 fault has occurred.
FP1 lockout code = 4
Air coil low temperature (FP2): The FP2 thermistor
temperature must be below the selected low
temperature limit setting for 30 continuous seconds
during a compressor run cycle to be recognized as a FP2
fault. The FP2 input is bypassed for the initial 60 seconds
of a compressor run cycle. FP2 is set at the factory for one
try. Therefore, the control will go into lockout mode once
the FP2 fault has occurred.
FP2 lockout code = 5
Condensate overflow: The condensate overflow sensor
must sense overflow level for 30 continuous seconds to
be recognized as a CO fault. Condensate overflow will be
monitored at all times.
CO lockout code = 6
Over/under voltage shutdown: An over/under voltage
condition exists when the control voltage is outside the
range of 19VAC to 30VAC. Over/under voltage shut
down is a self-resetting safety. If the voltage comes back
within range for at least 0.5 seconds, normal operation
is restored. This is not considered a fault or lockout. If
the CXM/DXM is in over/under voltage shutdown for 15
minutes, the alarm relay will close.
Over/under voltage shut down code = 7
Unit Performance Sentinel-UPS (patent pending): The
UPS feature indicates when the heat pump is operating
inefficiently. A UPS condition exists when:
a. In heating mode with compressor energized, FP2
is greater than 125°F [52°C] for 30 continuous
seconds, or:
b. In cooling mode with compressor energized, FP1
is greater than 125°F [52°C] for 30 continuous
seconds, or:
c. In cooling mode with compressor energized, FP2 is
less than 40°F [4.5°C] for 30 continuous seconds.
If a UPS condition occurs, the control will immediately
go to UPS warning. The status LED will remain on as if
the control is in normal mode. Outputs of the control,
excluding LED and alarm relay, will NOT be affected
by UPS. The UPS condition cannot occur during a
compressor off cycle. During UPS warning, the alarm
relay will cycle on and off. The cycle rate will be “on” for
5 seconds, “off” for 25 seconds, “on” for 5 seconds, “off”
for 25 seconds, etc.
C l i m a t e M a s t e r Wa t e r - S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Vertical Stack
R e v. : 1 1 / 0 9 / 1 2
UPS warning code = 8
Swapped FP1/FP2 thermistors: During test mode, the
control monitors to see if the FP1 and FP2 thermistors are
in the appropriate places. If the control is in test mode,
the control will lockout with code 9 after 30 seconds if:
a. The compressor is on in the cooling mode and the
FP1 sensor is colder than the FP2 sensor, or:
b. The compressor is on in the heating mode and the
FP2 sensor is colder than the FP1 sensor.
Swapped FP1/FP2 thermistor code = 9.
ESD (DXM only): The ESD (Emergency Shut Down)
mode can be enabled from an external common signal
to terminal ESD to shut down the unit. The green status
light will flash code 3 when the unit is in ESD mode.
ESD mode = code 3 (green “status” LED)
Diagnostic Features - The LED on the CXM board
advises the technician of the current status of the CXM
control. The LED can display either the current CXM
mode or the last fault in memory if in test mode. If there
is no fault in memory, the LED will flash Code 1 (when in
test mode).
The green status LED and red fault LED on the DXM
board advise the technician of the current status of the
DXM control. The status LED will indicate the current
mode that the DXM control is in. The fault LED will
ALWAYS flash a code representing the LAST fault in
memory. If there is no fault in memory, the fault LED will
flash Code 1. The yellow test LED will turn on when in
test mode.
CXM/DXM Control Start-up Operation - The control
will not operate until all inputs and safety controls are
checked for normal conditions. The compressor will have
a 5 minute anti-short cycle delay at power-up. The first
time after power-up that there is a call for compressor,
the compressor will follow a 5 to 80 second random start
delay. After the random start delay and anti-short cycle
delay, the compressor relay will be energized. On all
subsequent compressor calls, the random start delay is
omitted.
CAUTION!
CAUTION! Do not restart units without inspection and
remedy of faulting condition. Equipment damage may occur.
UNIT COMMISSIONING AND OPERATING CONDITIONS
Environment - This unit is designed for indoor
installation only. Do not install in an area subject to
freezing or where humidity levels can cause cabinet
condensation.
Power Supply - A voltage variation of +/- 10% of
nameplate utilization voltage is acceptable.
Operation and performance is primarily dependent
upon return air temperature, airflow, water temperature,
water flow rate and ambient air temperature. This water
to air heat pump is capable of operating over a wide
temperature range and with flow rates of between 1.5
GPM (.1 l/s) and 3 GPM (.19 l/s) per ton, however usually
no more than one of these factors may be at a minimum
or maximum level at a time.
The commissioning table indicates air and water
temperatures which are suitable for initial unit
commissioning in an environment where the flow rate
and water temperature is not yet stable and to avoid
nuisance shut down of the units freeze and refrigerant
pressure safeties.
The operating table indicates the maximum and
minimum ranges of the unit.
For more specific unit performance reference the product
catalog, the submittal data sheets or contact your
supplier for assistance.
c l i m a t e m a s t e r. c o m
37
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Vertical Stack
R e v. : 1 1 / 0 9 / 1 2
Table 8: Building Commissioning Limits
BUILDING COMMISSIONING
ALL TRM MODELS
AMBIENT MIN - MAX DB
Cooling °F [°C]
Heating °F [°C]
45-110 [7-43]
40-85 [4.5-29]
RETURN AIR MIN DB/WB
60/45 [16/7]
40 [4.5]
RETURN AIR MAX DB/WB
100-83 [38-28]
80 [27]
STANDARD UNIT ENTERING
WATER MIN* - MAX
40-120 [4.5-49]
60-90 [16-43]
EXTENDED RANGE UNIT** ENTERING WATER MIN* - MAX
30-120 [-1-49]
20-90 [-6.7-32]
*- Requires optional insulation package when operating below the dew point
**- Requires antifreeze, optional insulation package and jumper clipped.
Table 8A: Unit Operating Limits
UNIT OPERATING LIMITS
ALL TRM MODELS
Cooling °F [°C]
Heating °F [°C]
AMBIENT MIN - MAX DB
50-100 [10-38]
50-85 [10-29]
RETURN AIR MIN DB/WB
65/60 [18/15.5]
50 [10]
RETURN AIR MAX DB/WB
95/75 [35/24]
80 [27]
STANDARD UNIT ENTERING
WATER MIN* - MAX
50-120 [10-49]
60-90 [16-43]
EXTENDED RANGE UNIT** ENTERING WATER MIN* - MAX
30-120 [-1-49]
20-90 [-6.7-32]
*- Requires optional insulation package when operating below the dew point
**- Requires antifreeze, optional insulation package and jumper clipped.
Table 9: Water Temperature Change Through Heat Exchanger
PIPING SYSTEM CLEANING AND FLUSHING
Piping System Cleaning and Flushing - Cleaning and flushing the WLHP piping system is the single most important
step to ensure proper start-up and continued efficient operation of the system. Do not flush through chassis koax.
Follow the instructions under ‘System Cleaning and Flushing’ to properly clean and flush the system.
38
C l i m a t e M a s t e r Wa t e r - S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Vertical Stack
R e v. : 1 1 / 0 9 / 1 2
Unit and System Checkout
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 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.
Note: The manufacturer strongly recommends all
piping connections, both internal and external to the
unit, be pressure tested by an appropriate method
prior to any finishing of the interior space or before
access to all connections is limited. Test pressure may
not exceed the maximum allowable pressure for the
unit and all components within the water system.
The manufacturer will not be responsible or liable
for damages from water leaks due to inadequate or
lack of a pressurized leak test, or damages caused
by exceeding the maximum pressure rating during
installation.
BEFORE POWERING SYSTEM, please check the following:
UNIT CHECKOUT
Balancing/shutoff valves: Ensure that all isolation
valves are open and water control valves are wired.
Line voltage and wiring: Verify that voltage is within
an acceptable range for the unit and wiring and fuses/
breakers are properly sized. Verify that low voltage
wiring is complete.
Unit control transformer: Ensure that transformer has
the properly selected voltage tap. Commercial 208230V units are factory wired for 208V operation unless
specified otherwise.
Entering water and air: Ensure that entering water and
air temperatures are within operating limits of Table 8.
Low water temperature cutout: Verify that low water
temperature cut-out on the CXM/DXM control is
properly set.
Unit fan: Manually rotate fan to verify free rotation
and ensure that blower wheel is secured to the motor
shaft. Be sure to remove any shipping supports if
needed. DO NOT oil motors upon start-up. Fan
motors are pre-oiled at the factory. Check unit fan
speed selection and compare to design requirements.
Condensate line: Verify that condensate line is open
and properly pitched toward drain.
Water flow balancing: Record inlet and outlet water
temperatures for each heat pump upon startup.
This check can eliminate nuisance trip outs and high
velocity water flow that could erode heat exchangers.
Unit air coil and filters: Ensure that filter is clean and
accessible. Clean air coil of all manufacturing oils.
Unit controls: Verify that CXM or DXM field selection
options are properly set.
SYSTEM CHECKOUT
System water temperature: Check water temperature
for proper range and also verify heating and cooling
set points for proper operation.
System pH: Check and adjust water pH if necessary to
maintain a level between 6 and 8.5. Proper pH promotes
longevity of hoses and fittings (see Table 4).
System flushing: Verify that all hoses are connected end
to end when flushing to ensure that debris bypasses the
unit heat exchanger, water valves and other components.
Water used in the system must be potable quality initially
and clean of dirt, piping slag, and strong chemical
cleaning agents. Verify that all air is purged from the
system. Air in the system can cause poor operation or
system corrosion.
Cooling tower/boiler: Check equipment for proper set
points and operation.
Standby pumps: Verify that the standby pump is
properly installed and in operating condition.
System controls: Verify that system controls function
and operate in the proper sequence.
Low water temperature cutout: Verify that low water
temperature cut-out controls are provided for the
outdoor portion of the loop. Otherwise, operating
problems may occur.
System control center: Verify that the control center
and alarm panel have appropriate set points and are
operating as designed.
Miscellaneous: Note any questionable aspects of
the installation.
CAUTION!
CAUTION! Verify that ALL water control valves are open and
allow water flow prior to engaging the compressor. Freezing
of the coax or water lines can permanently damage the heat
pump.
CAUTION!
CAUTION! To avoid equipment damage, DO NOT
leave system filled in a building without heat during the
winter unless antifreeze is added to the water loop. Heat
exchangers never fully drain by themselves and will freeze
unless winterized with antifreeze.
NOTICE! Failure to remove shipping brackets from
spring-mounted compressors will cause excessive
noise, and could cause component failure due to
added vibration.
c l i m a t e m a s t e r. c o m
39
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Vertical Stack
R e v. : 1 1 / 0 9 / 1 2
Unit Start-Up Procedures
Unit Start-up Procedure
1. Turn the thermostat fan position to “ON”. Blower
should start.
2. Balance air flow at registers.
3. Adjust all valves to their full open positions. Turn on
the line power to all heat pumps.
4. Room temperature should be within the minimummaximum ranges of Table 8. During start-up checks,
loop water temperature entering the heat pump
should be between 60°F [16°C] and 95°F [35°C].
5. Two factors determine the operating limits of
ClimateMaster heat pumps, (a) return air temperature,
and (b) water temperature. When any one of these
factors is at a minimum or maximum level, the other
factor must be at normal level to ensure proper unit
operation.
a. Adjust the unit thermostat to the warmest
setting. Place the thermostat mode switch in the
“COOL” position. Slowly reduce thermostat
setting until the compressor activates.
b. Check for cool air delivery at the unit grille
within a few minutes after the unit has begun
to operate. Note: Units have a five minute
time delay in the control circuit that can be
eliminated on the CXM/DXM control board
as shown below in Figure 25. See controls
description for details.
c. Check the elevation and cleanliness of the
condensate lines. Dripping may be a sign of a
blocked line. Check that the condensate trap is
filled to provide a water seal.
d. Refer to Table 9. Check the temperature of
both entering and leaving water. If temperature
is within range, proceed with the test. If
temperature is outside of the operating range,
check refrigerant pressures.
e. Check air temperature drop across the air coil
when compressor is operating. Air temperature
drop should be between 15°F and 25°F [8°C
and 14°C].
f. Turn thermostat to “OFF” position. A hissing
noise indicates proper functioning of the
reversing valve.
6. Allow five (5) minutes between tests for pressure to
equalize before beginning heating test.
a. Adjust the thermostat to the lowest setting.
Place the thermostat mode switch in the
“HEAT” position.
b. Slowly raise the thermostat to a higher
temperature until the compressor activates.
c. Check for warm air delivery within a few minutes
after the unit has begun to operate.
40
d. Refer to Table 9. Check the temperature of
both entering and leaving water. If temperature
is within range, proceed with the test. If
temperature is outside of the operating range,
check refrigerant pressures.
e. Check air temperature rise across the air coil when
compressor is operating. Air temperature rise
should be between 20°F and 30°F [11°C and 17°C].
f. Check for vibration, noise, and water leaks.
7. Cabinets with optional electric heat (model with digit 7:19). Raise the thermostat setting additional 5 to10 degrees.
After 2 minutes, discharge air temperature should be
higher than in step 6. Select emergency heat mode then
wait 2 minutes and air temperature should be warm.
8. If unit fails to operate, perform troubleshooting analysis
(see troubleshooting section). If the check described
fails to reveal the problem and the unit still does not
operate, contact a trained service technician to ensure
proper diagnosis and repair of the equipment.
9. When testing is complete, set system to maintain
desired comfort level.
10. BE CERTAIN TO FILL OUT AND FORWARD
ALL WARRANTY REGISTRATION PAPERS TO
CLIMATEMASTER.
Note: If performance during any mode appears
abnormal, refer to the CXM and DXM sections or
troubleshooting section of this manual. To obtain
maximum performance, the air coil should be cleaned
before start-up. A 10% solution of dishwasher
detergent and water is recommended.
WARNING!
WARNING! When the disconnect switch is closed, high
voltage is present in some areas of the electrical panel.
Exercise caution when working with energized equipment.
CAUTION!
CAUTION! Verify that ALL water control valves are open and
allow water flow prior to engaging the compressor. Freezing
of the coax or water lines can permanently damage the heat
pump.
Figure 25: Test Mode Pins
C l i m a t e M a s t e r Wa t e r - S o u r c e H e a t P u m p s
Short test pins
together to enter Test
Mode and speed-up
timing and delays for
20 minutes.
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Vertical Stack
R e v. : 1 1 / 0 9 / 1 2
Unit Operating Conditions
Note: Table 10 includes the following notes:
• Airflow is at nominal (rated) conditions;
• Entering air is based upon 70°F [21°C] DB in heating
and 80/67°F [27/19°C] in cooling;
• Subcooling is based upon head pressure at
compressor service port;
• Cooling air and water values can vary greatly with
changes in humidity level.
Table 10: TRM Series Typical Operating Pressures and Temperatures (60 Hz I-P Units)
TRM09
Full Load Cooling
TRM09
Full Load Heating
Entering
Water
Temp °F
Water
Flow
GPM/
Ton
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Superheat
Subcooling
Water
Temp
Drop °F
Air Temp
Rise °F
DB
Entering
Water
Temp °F
Water
Flow
GPM/ton
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Superheat
Subcooling
Water
Temp
Drop °F
Air Temp
Rise °F
DB
30
1.5
2.25
3
114-124
111-121
109-119
142-162
132-152
122-142
24-29
26-31
28-33
3-8
3-8
3-8
15.2-17.2
11.4-13.4
7.5-9.5
17-23
17-23
17-23
30
1.5
2.25
3
75-85
78-88
81-91
272-292
274-294
276-296
13-18
13-18
13-18
4-9
4-9
4-9
5.9-7.9
4.3-6.3
2.7-4.7
16-22
16-22
17-23
50
1.5
2.25
3
130-140
129-139
128-138
190-210
180-200
170-190
14-19
16-21
19-24
2-7
2-7
2-7
16.5-18.5
12.3-14.3
8-10
18-24
18-24
18-24
50
1.5
2.25
3
104-114
112-122
120-130
299-319
304-324
308-328
12-17
12-17
12-17
6-11
4-9
3-8
8.8-10.8
6.7-8.7
4.5-6.5
21-27
22-28
23-29
70
1.5
2.25
3
143-153
141-151
140-150
265-285
252-272
240-260
9-14
10-15
11-16
2-7
2-7
2-7
15.5-17.5
11.5-13.5
7.5-9.5
18-24
18-24
18-24
70
1.5
2.25
3
129-139
144-154
159-169
321-341
330-350
340-360
11-16
13-18
15-20
7-12
4-9
3-8
11.2-13.2
8.8-10.8
6.3-8.3
25-31
27-33
28-34
90
1.5
2.25
3
149-159
149-159
148-158
340-370
335-355
320-340
8-13
8-13
8-13
2-7
2-7
2-7
14.2-16.2
10.6-12.6
7-9
17-23
17-23
17-23
90
1.5
2.25
3
163-173
180-190
198-208
349-369
360-380
372-392
13-18
11-16
10-15
7-12
4-9
3-8
14.3-16.3
11.2-13.2
8.1-10.1
30-36
32-38
34-40
110
1.5
2.25
3
154-164
154-164
153-163
451-471
428-448
405-425
8-13
8-13
8-13
2-7
2-7
2-7
12.7-14.7
9.5-11.5
6.5-8.5
15-21
15-21
15-21
110
1.5
2.25
3
TRM12
Full Load Cooling
TRM12
Full Load Heating
Entering
Water
Temp °F
Water
Flow
GPM/
Ton
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Superheat
Subcooling
Water
Temp
Drop °F
Air Temp
Rise °F
DB
Entering
Water
Temp °F
Water
Flow
GPM/ton
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Superheat
Subcooling
Water
Temp
Drop °F
Air Temp
Rise °F
DB
30
1.5
2.25
3
126-136
126-136
126-136
161-181
146-166
131-151
17-22
17-22
17-22
8-13
7-12
6-11
19.8-21.8
14.9-16.9
9.9-11.9
21-27
21-27
21-27
30
1.5
2.25
3
74-84
77-87
79-89
278-298
280-300
283-303
6-11
6-11
6-11
4-9
4-9
3-8
6.1-8.1
4.5-6.5
2.8-4.8
18-24
18-24
19-25
50
1.5
2.25
3
132-142
132-142
132-142
215-235
200-220
185-205
10-15
10-15
10-15
8-13
7-12
6-11
18.8-20.8
14.1-16.1
9.4-11.4
20-26
20-26
20-26
50
1.5
2.25
3
104-114
106-116
108-118
309-329
312-332
315-335
8-12
8-12
8-12
7-12
7-12
7-12
9.6-11.6
7-9
4.5-6.5
24-30
24-30
25-31
70
1.5
2.25
3
138-148
138-148
137-147
278-298
263-283
248-268
8-13
8-13
8-13
9-14
8-13
7-12
17.7-19.7
13.1-15.1
8.5-10.5
19-25
19-25
19-25
70
1.5
2.25
3
127-137
132-142
138-148
332-352
340-360
347-367
10-15
11-16
13-18
10-15
10-15
10-15
12-14
9-10
6.1-8.1
29-35
29-35
30-36
90
1.5
2.25
3
142-152
142-152
142-152
365-385
351-371
337-357
8-13
8-13
8-13
9-14
8-13
7-12
16-18
12-14
8-10
18-24
18-24
18-24
90
1.5
2.25
3
164-174
165-175
167-177
372-392
375-395
379-399
17-22
18-23
19-24
13-18
13-18
13-18
14.5-16.5
11.2-13.2
7.9-9.9
35-41
35-41
36-42
110
1.5
2.25
3
150-160
150-160
150-160
439-459
439-459
439-459
17-22
17-22
17-22
9-14
8-13
7-12
14.2-16.2
10.6-12.6
6.9-8.9
17-23
17-23
17-23
110
1.5
2.25
3
TRM15
Full Load Cooling
TRM15
Full Load Heating
Entering
Water
Temp °F
Water
Flow
GPM/
Ton
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Superheat
Subcooling
Water
Temp
Drop °F
Air Temp
Rise °F
DB
Entering
Water
Temp °F
Water
Flow
GPM/ton
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Superheat
Subcooling
Water
Temp
Drop °F
Air Temp
Rise °F
DB
30
1.5
2.25
3
98-108
98-108
99-109
140-160
135-155
127-148
36-41
36-41
36-41
14-19
12-17
10-15
17.1-19.1
12.5-14.5
7.9-9.9
19-25
19-25
19-25
30
1.5
2.25
3
72-82
85-95
78-88
301-321
304-324
308-328
9-14
9-14
9-14
12-17
12-17
12-17
6.5-8.5
4.7-6.7
2.9-4.9
21-27
21-27
22-28
50
1.5
2.25
3
118-128
118-128
118-128
215-235
200-220
185-205
22-27
22-27
22-27
14-19
12-17
10-15
18.1-20.1
13.1-15.1
8.1-10.1
20-26
20-26
19-25
50
1.5
2.25
3
100-110
98-108
95-105
337-357
334-354
332-352
10-15
10-15
11-16
15-20
15-20
15-20
9.5-11.5
6.6-8.6
3.8-5.8
26-32
26-32
26-32
70
1.5
2.25
3
132-142
132-142
132-142
300-320
263-282
245-265
11-16
11-16
12-17
12-17
10-15
7-12
17-19
12.6-14.6
8.2-10.2
19-25
19-25
19-25
70
1.5
2.25
3
115-125
112-122
110-120
361-381
360-380
356-376
19-24
20-25
21-26
18-23
18-23
18-23
11.1-13.1
8-10
4.8-6.8
29-35
29-35
29-35
90
1.5
2.25
3
138-148
138-148
138-148
366-386
353-373
340-360
9-14
9-14
9-14
11-16
9-14
6-11
15.8-17.8
14.9-16.9
14-16
18-24
18-24
18-24
90
1.5
2.25
3
122-132
123-133
124-134
376-396
378-398
380-400
34-39
36-41
38-43
22-27
22-27
23-28
12.1-14.1
9-11
5.8-7.8
32-38
32-38
32-38
110
1.5
2.25
3
145-155
145-155
145-155
453-473
442-462
431-451
9-14
9-14
9-14
9-14
7-12
5-10
14.7-16.7
10.8-12.8
6.8-8.8
16-22
16-22
17-23
110
1.5
2.25
3
Table Continued on Next Page
c l i m a t e m a s t e r. c o m
41
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Vertical Stack
R e v. : 1 1 / 0 9 / 1 2
Table 10: TRM Series Typical Operating Pressures and Temperatures (60 Hz I-P Units)
TRM18
Full Load Cooling
TRM18
Full Load Heating
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Superheat
Subcooling
Water
Temp
Drop °F
Air
Temp
Rise °F
DB
1.5
2.25
3
75-85
78-88
81-91
272-292
274-294
276-296
13-18
13-18
13-18
4-9
4-9
4-9
5.9-7.9
4.3-6.3
2.7-4.7
16-22
16-22
17-23
50
1.5
2.25
3
104-114
112-122
120-130
299-319
304-324
308-328
12-17
12-17
12-17
6-11
4-9
3-8
8.8-10.8
6.7-8.7
4.5-6.5
21-27
22-28
23-29
19-25
19-25
19-25
70
1.5
2.25
3
129-139
144-154
159-169
321-341
330-350
340-360
11-16
13-18
15-20
7-12
4-9
3-8
11.2-13.2
8.8-10.8
6.3-8.3
25-31
27-33
28-34
16-18
12-14
8-10
18-24
18-24
18-24
90
1.5
2.25
3
163-173
180-190
198-208
349-369
360-380
372-392
13-18
11-16
10-15
7-12
4-9
3-8
14.3-16.3
11.2-13.2
8.1-10.1
30-36
32-38
34-40
14.2-16.2
10.6-12.6
6.9-8.9
17-23
17-23
17-23
110
1.5
2.25
3
Entering
Water
Temp °F
Water
Flow
GPM/
Ton
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Superheat
Subcooling
Water
Temp
Drop °F
Air Temp
Rise °F
DB
Entering
Water
Temp °F
Water
Flow
GPM/ton
30
1.5
2.25
3
126-136
126-136
126-136
161-181
146-166
131-151
17-22
17-22
17-22
8-13
7-12
6-11
19.8-21.8
14.9-16.9
9.9-11.9
21-27
21-27
21-27
30
50
1.5
2.25
3
132-142
132-142
132-142
215-235
200-220
185-205
10-15
10-15
10-15
8-13
7-12
6-11
18.8-20.8
14.1-16.1
9.4-11.4
20-26
20-26
20-26
70
1.5
2.25
3
138-148
138-148
137-147
278-298
263-283
248-268
8-13
8-13
8-13
9-14
8-13
7-12
17.7-19.7
13.1-15.1
8.5-10.5
90
1.5
2.25
3
142-152
142-152
142-152
365-385
351-371
337-357
8-13
8-13
8-13
9-14
8-13
7-12
110
1.5
2.25
3
150-160
150-160
150-160
439-459
439-459
439-459
7-12
7-12
7-12
9-14
8-13
7-12
TRM24
Full Load Cooling
TRM24
Full Load Heating
Entering
Water
Temp °F
Water
Flow
GPM/
Ton
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Superheat
Subcooling
Water
Temp
Drop °F
Air Temp
Rise °F
DB
Entering
Water
Temp °F
Water
Flow
GPM/ton
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Superheat
Subcooling
Water
Temp
Drop °F
Air
Temp
Rise °F
DB
30
1.5
2.25
3
126-136
126-136
126-136
161-181
146-166
131-151
17-22
17-22
17-22
8-13
7-12
6-11
19.8-21.8
14.9-16.9
9.9-11.9
21-27
21-27
21-27
30
1.5
2.25
3
75-85
78-88
81-91
272-292
274-294
276-296
13-18
13-18
13-18
4-9
4-9
4-9
5.9-7.9
4.3-6.3
2.7-4.7
16-22
16-22
17-23
50
1.5
2.25
3
132-142
132-142
132-142
215-235
200-220
185-205
10-15
10-15
10-15
8-13
7-12
6-11
18.8-20.8
14.1-16.1
9.4-11.4
20-26
20-26
20-26
50
1.5
2.25
3
104-114
112-122
120-130
299-319
304-324
308-328
12-17
12-17
12-17
6-11
4-9
3-8
8.8-10.8
6.7-8.7
4.5-6.5
21-27
22-28
23-29
70
1.5
2.25
3
138-148
138-148
137-147
278-298
263-283
248-268
8-13
8-13
8-13
9-14
8-13
7-12
17.7-19.7
13.1-15.1
8.5-10.5
19-25
19-25
19-25
70
1.5
2.25
3
129-139
144-154
159-169
321-341
330-350
340-360
11-16
13-18
15-20
7-12
4-9
3-8
11.2-13.2
8.8-10.8
6.3-8.3
25-31
27-33
28-34
90
1.5
2.25
3
142-152
142-152
142-152
365-385
351-371
337-357
8-13
8-13
8-13
9-14
8-13
7-12
16-18
12-14
8-10
18-24
18-24
18-24
90
1.5
2.25
3
163-173
180-190
198-208
349-369
360-380
372-392
13-18
11-16
10-15
7-12
4-9
3-8
14.3-16.3
11.2-13.2
8.1-10.1
30-36
32-38
34-40
110
1.5
2.25
3
150-160
150-160
150-160
439-459
439-459
439-459
7-12
7-12
7-12
9-14
8-13
7-12
14.2-16.2
10.6-12.6
6.9-8.9
17-23
17-23
17-23
110
1.5
2.25
3
TRM30
Full Load Cooling
TRM30
Full Load Heating
Entering
Water
Temp °F
Water
Flow
GPM/
ton
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Superheat
Subcooling
Water
Temp
Drop °F
Air
Temp
Rise °F
DB
21-27
21-27
21-27
30
1.5
2.25
3
75-85
78-88
81-91
272-292
274-294
276-296
13-18
13-18
13-18
4-9
4-9
4-9
5.9-7.9
4.3-6.3
2.7-4.7
16-22
16-22
17-23
18.8-20.8
14.1-16.1
9.4-11.4
20-26
20-26
20-26
50
1.5
2.25
3
104-114
112-122
120-130
299-319
304-324
308-328
12-17
12-17
12-17
6-11
4-9
3-8
8.8-10.8
6.7-8.7
4.5-6.5
21-27
22-28
23-29
9-14
8-13
7-12
17.7-19.7
13.1-15.1
8.5-10.5
19-25
19-25
19-25
70
1.5
2.25
3
129-139
144-154
159-169
321-341
330-350
340-360
11-16
13-18
15-20
7-12
4-9
3-8
11.2-13.2
8.8-10.8
6.3-8.3
25-31
27-33
28-34
8-13
8-13
8-13
9-14
8-13
7-12
16-18
12-14
8-10
18-24
18-24
18-24
90
1.5
2.25
3
163-173
180-190
198-208
349-369
360-380
372-392
13-18
11-16
10-15
7-12
4-9
3-8
14.3-16.3
11.2-13.2
8.1-10.1
30-36
32-38
34-40
7-12
7-12
7-12
9-14
8-13
7-12
14.2-16.2
10.6-12.6
6.9-8.9
17-23
17-23
17-23
110
1.5
2.25
3
Entering
Water
Temp °F
Water
Flow
GPM/
Ton
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Superheat
Subcooling
Water
Temp
Drop °F
Air Temp
Rise °F
DB
30
1.5
2.25
3
126-136
126-136
126-136
161-181
146-166
131-151
17-22
17-22
17-22
8-13
7-12
6-11
19.8-21.8
14.9-16.9
9.9-11.9
50
1.5
2.25
3
132-142
132-142
132-142
215-235
200-220
185-205
10-15
10-15
10-15
8-13
7-12
6-11
70
1.5
2.25
3
138-148
138-148
137-147
278-298
263-283
248-268
8-13
8-13
8-13
90
1.5
2.25
3
142-152
142-152
142-152
365-385
351-371
337-357
110
1.5
2.25
3
150-160
150-160
150-160
439-459
439-459
439-459
Table Continued on Next Page
42
C l i m a t e M a s t e r Wa t e r - S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Vertical Stack
R e v. : 1 1 / 0 9 / 1 2
Table 10: TRM Series Typical Operating Pressures and Temperatures (60 Hz I-P Units)
TRM36
Full Load Cooling
TRM36
Full Load Heating
Entering
Water
Temp °F
Water
Flow
GPM/
Ton
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Superheat
Subcooling
Water
Temp
Drop °F
Air Temp
Rise °F
DB
Entering
Water
Temp °F
Water
Flow
GPM/ton
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Superheat
Subcooling
Water
Temp
Drop °F
Air
Temp
Rise °F
DB
30
1.5
2.25
3
126-136
126-136
126-136
161-181
146-166
131-151
17-22
17-22
17-22
8-13
7-12
6-11
19.8-21.8
14.9-16.9
9.9-11.9
21-27
21-27
21-27
30
1.5
2.25
3
75-85
78-88
81-91
272-292
274-294
276-296
13-18
13-18
13-18
4-9
4-9
4-9
5.9-7.9
4.3-6.3
2.7-4.7
16-22
16-22
17-23
50
1.5
2.25
3
132-142
132-142
132-142
215-235
200-220
185-205
10-15
10-15
10-15
8-13
7-12
6-11
18.8-20.8
14.1-16.1
9.4-11.4
20-26
20-26
20-26
50
1.5
2.25
3
104-114
112-122
120-130
299-319
304-324
308-328
12-17
12-17
12-17
6-11
4-9
3-8
8.8-10.8
6.7-8.7
4.5-6.5
21-27
22-28
23-29
70
1.5
2.25
3
138-148
138-148
137-147
278-298
263-283
248-268
8-13
8-13
8-13
9-14
8-13
7-12
17.7-19.7
13.1-15.1
8.5-10.5
19-25
19-25
19-25
70
1.5
2.25
3
129-139
144-154
159-169
321-341
330-350
340-360
11-16
13-18
15-20
7-12
4-9
3-8
11.2-13.2
8.8-10.8
6.3-8.3
25-31
27-33
28-34
90
1.5
2.25
3
142-152
142-152
142-152
365-385
351-371
337-357
8-13
8-13
8-13
9-14
8-13
7-12
16-18
12-14
8-10
18-24
18-24
18-24
90
1.5
2.25
3
163-173
180-190
198-208
349-369
360-380
372-392
13-18
11-16
10-15
7-12
4-9
3-8
14.3-16.3
11.2-13.2
8.1-10.1
30-36
32-38
34-40
110
1.5
2.25
3
150-160
150-160
150-160
439-459
439-459
439-459
7-12
7-12
7-12
9-14
8-13
7-12
14.2-16.2
10.6-12.6
6.9-8.9
17-23
17-23
17-23
110
1.5
2.25
3
Table 11: Coax Water Pressure Drop
Pressure Drop, PSI
30°F
50°F
70°F
90°F
PD Added for
Motorized Water Valve
1.1
1.7
2.3
0.6
1.7
3.3
0.5
1.5
2.9
0.5
1.4
2.8
0.4
1.3
2.5
0.25
0.64
1.27
TRC12
1.5
2.3
3.0
1.4
3.2
5.8
1.2
2.8
5.1
1.1
2.5
4.6
0.9
2.2
4.2
0.46
1.17
2.16
TRC15
1.9
2.8
3.8
0.3
0.6
1.8
0.3
0.5
1.5
0.2
0.4
1.3
0.2
0.4
1.2
0.74
1.74
2.16
TRC18
2.3
3.4
4.5
0.7
1.8
3.5
0.6
1.6
2.9
0.5
1.3
2.5
0.4
1.2
2.3
0.24
0.58
1.10
TRC24
3.0
4.5
6.0
1.3
2.4
4.6
1.2
2.1
4.1
1.1
1.8
3.6
1.0
1.6
3.3
0.42
1.02
1.96
TRC30
3.8
5.6
7.5
1.0
2.9
5.5
0.9
2.8
5.3
0.8
2.0
3.8
0.6
1.9
3.6
0.67
1.58
3.06
TRC36
4.5
6.8
9.0
2.5
5.2
8.6
2.1
4.4
7.4
1.9
4.0
6.6
1.7
4.0
5.9
0.93
2.32
4.40
Model
GPM
TRC09
c l i m a t e m a s t e r. c o m
43
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Vertical Stack
R e v. : 1 1 / 0 9 / 1 2
Start-Up Log Sheet
Installer: Complete unit and system checkout and follow unit start-up procedures in the IOM. Use this form to record
unit information, temperatures and pressures during start-up. Keep this form for future reference.
Job Name:
Street Address:
Chassis Model Number:
Serial Number:
Cabinet Model Number:
Serial Number:
Unit Location in Building:
Date:
Sales Order No:
In order to minimize troubleshooting and costly system failures, complete the following checks and data entries before
the system is put into full operation.
Motor Speed(s): ___________
Temperatures: F or C
Antifreeze: ______%
Type: ___________
Pressures: PSIG or kPa
Cooling Mode
Heating Mode
Return-Air Temperature
DB
WB
DB
Supply-Air Temperature
DB
WB
DB
Temperature Differential
Entering Fluid Temperature
Leaving Fluid Temperature
Temperature Differential
Water Coil Heat Exchanger
(Water Pressure IN)
Water Coil Heat Exchanger
(Water Pressure OUT)
Pressure Differential
Flow Rate GPM (l/s)
Compressor
Amps
Volts
Discharge Line Temperature
Motor
Amps
Volts
Allow unit to run 15 minutes in each mode before taking data.
Do not connect gauge lines
44
C l i m a t e M a s t e r Wa t e r - S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Vertical Stack
R e v. : 1 1 / 0 9 / 1 2
Preventive Maintenance
Water Coil Maintenance
(Direct ground water applications only)
If the system is installed in an area with a known high
mineral content (125 P.P.M. or greater) in the water, it is
best to establish a periodic maintenance schedule with
the owner so the coil can be checked regularly. Consult
the well water applications section of this manual for
a more detailed water coil material selection. Should
periodic coil cleaning be necessary, use standard coil
cleaning procedures, which are compatible with the heat
exchanger material and copper water lines. Generally,
the more water flowing through the unit, the less chance
for scaling. Therefore, 1.5 gpm per ton [2.0 l/m per kW]
is recommended as a minimum flow. Minimum flow rate
for entering water temperatures below 50°F [10°C] is 2.0
gpm per ton [2.6 l/m per kW].
Water Coil Maintenance
(All other water loop applications)
Generally water coil maintenance is not needed for
closed loop systems. However, if the piping is known to
have high dirt or debris content, it is best to establish a
periodic maintenance schedule with the owner so the
water coil can be checked regularly. Dirty installations are
typically the result of deterioration of iron or galvanized
piping or components in the system. Open cooling
towers requiring heavy chemical treatment and mineral
buildup through water use can also contribute to higher
maintenance. Should periodic coil cleaning be necessary,
use standard coil cleaning procedures, which are
compatible with both the heat exchanger material and
copper water lines. Generally, the more water flowing
through the unit, the less chance for scaling. However,
flow rates over 3 gpm per ton (3.9 l/m per kW) can
produce water (or debris) velocities that can erode the
heat exchanger wall and ultimately produce leaks.
Filters - Filters must be clean to obtain maximum
performance. Filters should be inspected every month
under normal operating conditions and be replaced
when necessary. Units should never be operated without
a filter.
Condensate Drain - In areas where airborne bacteria
may produce a “slimy” substance in the drain pan, it may
be necessary to treat the drain pan chemically with an
algaecide approximately every three months to minimize
the problem. The condensate pan may also need to be
cleaned periodically to ensure indoor air quality. The
condensate drain can pick up lint and dirt, especially with
dirty filters. Inspect the drain twice a year to avoid the
possibility of plugging and eventual overflow.
Compressor - Conduct annual amperage checks to
ensure that amp draw is no more than 10% greater than
indicated on the serial plate data.
Fan Motors - All units have lubricated fan motors. Fan
motors should never be lubricated unless obvious, dry
operation is suspected. Periodic maintenance oiling is
not recommended, as it will result in dirt accumulating in
the excess oil and cause eventual motor failure. Conduct
annual dry operation check and amperage check to
ensure amp draw is no more than 10% greater than
indicated on serial plate data.
Air Coil - The air coil must be cleaned to obtain
maximum performance. Check once a year under normal
operating conditions and, if dirty, brush or vacuum clean.
Care must be taken not to damage the aluminum fins
while cleaning. CAUTION: Fin edges are sharp.
Cabinet - Check inside cabinet once a year. Gently brush
or vacuum clean if needed. Do not tear insulation.
Refrigerant System - To maintain sealed circuit integrity,
do not install service gauges unless unit operation
appears abnormal. Reference the operating charts for
pressures and temperatures. Verify that air and water
flow rates are at proper levels before servicing the
refrigerant circuit.
Washable, high efficiency, electrostatic filters, when dirty,
can exhibit a very high pressure drop for the fan motor
and reduce air flow, resulting in poor performance. It is
especially important to provide consistent washing of
these filters (in the opposite direction of the normal air
flow) once per month using a high pressure wash similar
to those found at self-serve car washes.
c l i m a t e m a s t e r. c o m
45
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Vertical Stack
R e v. : 1 1 / 0 9 / 1 2
Functional Troubleshooting
Fault
Main power problems
HP Fault
Code 2
Htg Clg Possible Cause
Solution
Air temperature out of range in heating
Overcharged with refrigerant
Bad HP Switch
Insufficient charge
Check line voltage circuit breaker and disconnect.
Check for line voltage between L1 and L2 on the contactor.
Check for 24VAC between R and C on CXM/DXM'
Check primary/secondary voltage on transformer.
Check pump operation or valve operation/setting.
Check water flow adjust to proper flow rate.
Bring water temp within design parameters.
Check for dirty air filter and clean or replace.
Check fan motor operation and airflow restrictions.
Dirty Air Coil- construction dust etc.
Too high of external static. Check static vs blower table.
Bring return air temp within design parameters.
Check superheat/subcooling vs typical operating condition table.
Check switch continuity and operation. Replace.
Check for refrigerant leaks
X
Compressor pump down at start-up
Check charge and start-up water flow.
X
Reduced or no water flow in heating
X
X
Inadequate antifreeze level
Improper temperature limit setting (30°F vs
10°F [-1°C vs -2°C])
Water Temperature out of range
Bad thermistor
X
Reduced or no air flow in cooling
X
X
X
X
Air Temperature out of range
Improper temperature limit setting (30°F vs
10°F [-1°C vs -12°C])
Bad thermistor
Blocked drain
Improper trap
X
Poor drainage
X
x
X
X
X
Moisture on sensor
Plugged air filter
Restricted Return Air Flow
X
X
Under Voltage
X
X
Over Voltage
X
X
Green Status LED Off
X
Reduced or no water flow in cooling
X
Water Temperature out of range in cooling
X
Reduced or no air flow in heating
High Pressure
LP/LOC Fault
Code 3
X
X
X
X
X
X
X
Low Pressure / Loss of Charge
LT1 Fault
Code 4
Water coil low
temperature limit
X
X
X
LT2 Fault
Code 5
Air coil low
temperature limit
X
X
X
X
Condensate Fault
Code 6
Over/Under
Voltage Code 7
(Auto resetting)
Unit Performance Sentinel
Code 8
No Fault Code Shown
Unit Short Cycles
Only Fan Runs
Only Compressor Runs
Unit Doesn’t Operate
in Cooling
46
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Heating mode FP2>125°F [52°C]
Cooling Mode FP1>125°F [52°C] OR FP2<
40ºF [4ºC])
No compressor operation
Compressor overload
Control board
Dirty air filter
Unit in "test mode"
Unit selection
Compressor overload
Thermostat position
Unit locked out
Compressor Overload
X
X
Thermostat wiring
X
X
Thermostat wiring
X
X
X
X
X
X
Fan motor
X
X
Thermostat wiring
X
Fan motor relay
X
Reversing valve
X
X
Thermostat setup
Thermostat wiring
X
Thermostat wiring
Check pump operation or water valve operation/setting.
Plugged strainer or filter. Clean or replace..
Check water flow adjust to proper flow rate.
Check antifreeze density with hydrometer.
Clip JW3 jumper for antifreeze (10°F [-12°C]) use.
Bring water temp within design parameters.
Check temp and impedance correlation per chart
Check for dirty air filter and clean or replace.
Check fan motor operation and airflow restrictions.
Too high of external static. Check static vs blower table.
Too much cold vent air? Bring entering air temp within design parameters.
Normal airside applications will require 30°F [-1°C] only.
Check temp and impedance correlation per chart.
Check for blockage and clean drain.
Check trap dimensions and location ahead of vent.
Check for piping slope away from unit.
Check slope of unit toward outlet.
Poor venting. Check vent location.
Check for moisture shorting to air coil.
Replace air filter.
Find and eliminate restriction. Increase return duct and/or grille size.
Check power supply and 24VAC voltage before and during operation.
Check power supply wire size.
Check compressor starting. Need hard start kit?
Check 24VAC and unit transformer tap for correct power supply voltage.
Check power supply voltage and 24VAC before and during operation.
Check 24VAC and unit transformer tap for correct power supply voltage.
Check for poor air flow or overcharged unit.
Check for poor water flow, or air flow.
See "Only Fan Operates".
Check and replace if necessary.
Reset power and check operation.
Check and clean air filter.
Reset power or wait 20 minutes for auto exit.
Unit may be oversized for space. Check sizing for actual load of space.
Check and replace if necessary
Ensure thermostat set for heating or cooling operation.
Check for lockout codes. Reset power.
Check compressor overload. Replace if necessary.
Check thermostat wiring at heat pump. Jumper Y and R for compressor operation
in test mode.
Check G wiring at heat pump. Jumper G and R for fan operation
Jumper G and R for fan operation. Check for Line voltage across BR contacts.
Check fan power enable relay operation (if present).
Check for line voltage at motor. Check capacitor.
Check thermostat wiring at heat pump. Jumper Y and R for compressor operation
in test mode
Set for cooling demand and check 24VAC on RV coil and at CXM/DXM board.
If RV is stuck, run high pressure up by reducing water flow and while operating
engage and disengage RV coil voltage to push valve.
Check for ‘O’ RV setup not ‘B’.
Check O wiring at heat pump. Jumper O and R for RV coil ‘click’.
Put thermostat in cooling mode. Check 24 VAC on O (check between C and
O); check for 24 VAC on W (check between W and C). There should be voltage
on O, but not on W. If voltage is present on W, thermostat may be bad or wired
incorrectly.
C l i m a t e M a s t e r Wa t e r - S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Vertical Stack
R e v. : 1 1 / 0 9 / 1 2
Performance Troubleshooting
Performance Troubleshooting
Htg Clg Possible Cause
X
X
Dirty filter
Solution
Replace or clean.
Check for dirty air filter and clean or replace.
X
Reduced or no air flow in heating
Check fan motor operation and airflow restrictions.
Too high of external static. Check static vs. blower table.
Check for dirty air filter and clean or replace.
X
Reduced or no air flow in cooling
Check fan motor operation and airflow restrictions.
Too high of external static. Check static vs. blower table.
Insufficient capacity/ Not
cooling or heating
X
X
Leaky duct work
Check supply and return air temperatures at the unit and at distant duct registers
if significantly different, duct leaks are present.
X
X
Low refrigerant charge
Check superheat and subcooling per chart.
X
X
Restricted metering device
Check superheat and subcooling per chart. Replace.
X
Defective reversing valve
Perform RV touch test.
X
X
Thermostat improperly located
Check location and for air drafts behind stat.
X
X
Unit undersized
Recheck loads & sizing. Check sensible clg. load and heat pump capacity.
X
X
Scaling in water heat exchanger
Perform scaling check and clean if necessary.
X
X
Inlet water too hot or too cold
Check load, loop sizing, loop backfill, ground moisture.
Check for dirty air filter and clean or replace.
X
Reduced or no air flow in heating
Check fan motor operation and air flow restrictions.
Too high of external static. Check static vs. blower table.
High Head Pressure
X
Reduced or no water flow in cooling
X
Inlet water too hot
X
Check pump operation or valve operation/setting.
Check water flow. Adjust to proper flow rate.
Check load, loop sizing, loop backfill, ground moisture.
Air temperature out of range in heating
Bring return air temperature within design parameters.
X
Scaling in water heat exchanger
Perform scaling check and clean if necessary.
X
X
Unit overcharged
Check superheat and subcooling. Re-weigh in charge.
X
X
Non-condensables in system
Vacuum system and re-weigh in charge.
X
X
Restricted metering device.
Check superheat and subcooling per chart. Replace.
Check pump operation or water valve operation/setting.
X
Reduced water flow in heating.
Plugged strainer or filter. Clean or replace.
X
Water temperature out of range.
Bring water temperature within design parameters.
Check water flow. Adjust to proper flow rate.
Low Suction Pressure
Check for dirty air filter and clean or replace.
X
Reduced air flow in cooling.
Check fan motor operation and air flow restrictions.
X
Air temperature out of range
Too much cold vent air? Bring entering air temperature within design parameters.
X
Insufficient charge
Check for refrigerant leaks.
Too high of external static. Check static vs. blower table.
X
Low Discharge Air Temperature
in Heating
High humidity
X
Too high of air flow
Check fan motor speed selection and air flow chart.
X
Poor performance
See ‘Insufficient Capacity’
X
Too high of air flow
Check fan motor speed selection and airflow chart.
X
Unit oversized
Recheck loads & sizing. Check sensible clg load and heat pump capacity.
c l i m a t e m a s t e r. c o m
47
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Vertical Stack
R e v. : 1 1 / 0 9 / 1 2
Troubleshooting Form
Customer:
Loop Type:
Model #:
Serial #:
Startup Date:
Antifreeze Type & %:
Complaint:
REFRIGERANT: HFC-410A
OPERATING MODE:
HEATING
REFRIG FLOW - HEATING
10
HEATING POSITION
COOLING POSITION
COOLING
REFRIG FLOW - COOLING
11
AIR
COIL
REVERSING
VALVE
CONDENSER (HEATING)
EVAPORATOR (COOLING)
2
1
SUCTION
CONDENSER (COOLING)
EVAPORATOR (HEATING)
COMPRESSOR
EXPANSION
VALVE
3
COAX
FILTER
DRIER
DISCHARGE
4
Source
5 FP2:
HEATING
LIQUID
LINE
1
2
2a
2b
3
4
4a
4b
5
6
7
8
9
9a
9b
10
Description
Voltage
Compressor Amps
Suction Temp
Suction Press
Saturation Temp
Superheat
Discharge Temp
Discharge Press
Saturation Temp
Subcooling
Liquid Line Temp
5 FP1:
COOLING
LIQUID
LINE
Heating
6
7
8
9
Cooling
Source Water In Tmp
Source Water Out Tmp
Source Water In Pres
Source Water Out Pres
Notes
Temp Diff. =
Press Drop
Flow Rate
Return Air Temp
11 Supply Air Temp
Heat of Extraction (Absorption) or Heat of Rejection:
HE or HR =
Flow Rate x
Temp. Diff x
Fluid Factor: (for Btuh)
Fluid Factor: (for kW)
500 (Water); 485 (Antifreeze)
4.18 (Water); 4.05 (Antifreeze)
Fluid Factor
Superheat = Suction temperature - suction saturation temp. = _________________ (deg F)
Subcooling = Discharge saturation temp. - liquid line temp. = _________________ (deg F)
Note: Never connect refrigerant gauges during startup procedures. Conduct water-side analysis using P/T
ports to determine water flow and temperature difference. If water-side analysis shows poor performance,
refrigerant troubleshooting may be required. Connect refrigerant gauges as a last resort.
48
C l i m a t e M a s t e r Wa t e r - S o u r c e H e a t P u m p s
c l i m a t e m a s t e r. c o m
Rev.: 11/09
Please refer to the CM Installation, Operation and Maintenance Manual for operating and maintenance instructions.
LC083
*LC083*
NOTE: Some states or Canadian provinces do not allow limitations on how long an implied warranty lasts, or the limitation or exclusions of consequential or incidental damages, so the foregoing exclusions and limitations may
not apply to you. This warranty gives you speciÀc legal rights, and you may also have other rights which vary from state to state and from Canadian province to Canadian province.
Climate Master, Inc. • Customer Service • 7300 S.W. 44th Street • Oklahoma City, Oklahoma 73179 (405) 745-6000
OBTAINING WARRANTY PERFORMANCE
Normally, the contractor or service organization who installed the products will provide warranty performance for the owner. Should the installer be unavailable, contact any CM recognized dealer, contractor or service organization. If assistance is required in obtaining warranty performance, write or call:
LIMITATION OF LIABILITY
CM shall have no liability for any damages if CM’s performance is delayed for any reason or is prevented to any extent by any event such as, but not limited to: any war, civil unrest, government restrictions or restraints, strikes
or work stoppages, Àre, Áood, accident, shortages of transportation, fuel, material, or labor, acts of God or any other reason beyond the sole control of CM. CM EXPRESSLY DISCLAIMS AND EXCLUDES ANY LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGE IN CONTRACT, FOR BREACH OF ANY EXPRESS OR IMPLIED WARRANTY, OR IN TORT, WHETHER FOR CM’s NEGLIGENCE OR AS
STRICT LIABILITY.
LIMITATION OF REMEDIES
In the event of a breach of the Limited Express Warranty, CM will only be obligated at CM’s option to repair the failed part or unit or to furnish a new or rebuilt part or unit in exchange for the part or unit which has failed. If
after written notice to CM’s factory in Oklahoma City, Oklahoma of each defect, malfunction or other failure and a reasonable number of attempts by CM to correct the defect, malfunction or other failure and the remedy fails
of its essential purpose, CM shall refund the purchase price paid to CM in exchange for the return of the sold good(s). Said refund shall be the maximum liability of CM. THIS REMEDY IS THE SOLE AND EXCLUSIVE
REMEDY OF THE BUYER OR THEIR PURCHASER AGAINST CM FOR BREACH OF CONTRACT, FOR THE BREACH OF ANY WARRANTY OR FOR CM’S NEGLIGENCE OR IN STRICT LIABILITY.
Limitation: This Limited Express Warranty is given in lieu of all other warranties. If, notwithstanding the disclaimers contained herein, it is determined that other warranties exist, any such warranties, including without limitation any express warranties or any implied warranties of Àtness for particular purpose and merchantability, shall be limited to the duration of the Limited Express Warranty.
CM is not responsible for: (1) The costs of any Áuids, refrigerant or other system components, or associated labor to repair or replace the same, which is incurred as a result of a defective part covered by CM’s Limited Express
Warranty; (2) The costs of labor, refrigerant, materials or service incurred in removal of the defective part, or in obtaining and replacing the new or repaired part; or, (3) Transportation costs of the defective part from the installation site to CM or of the return of any part not covered by CM’s Limited Express Warranty.
This warranty does not cover and does not apply to: (1) Air Àlters, fuses, refrigerant, Áuids, oil; (2) Products relocated after initial installation; (3) Any portion or component of any system that is not supplied by CM, regardless
of the cause of the failure of such portion or component; (4) Products on which the unit identiÀcation tags or labels have been removed or defaced; (5) Products on which payment to CM is or has been in default; (6) Products
which have defects or damage which result from improper installation, wiring, electrical imbalance characteristics or maintenance; or are caused by accident, misuse or abuse, Àre, Áood, alteration or misapplication of the product; (7) Products which have defects or damage which result from a contaminated or corrosive air or liquid supply, operation at abnormal temperatures, or unauthorized opening of refrigerant circuit; (8) Mold, fungus or bacteria
damages; (9) Products subjected to corrosion or abrasion; (10) Products manufactured or supplied by others; (11) Products which have been subjected to misuse, negligence or accidents; (12) Products which have been operated
in a manner contrary to CM’s printed instructions; or (13) Products which have defects, damage or insufÀcient performance as a result of insufÀcient or incorrect system design or the improper application of CM’s products.
GRANT OF LIMITED EXPRESS WARRANTY
CM warrants CM products purchased and retained in the United States of America and Canada to be free from defects in material and workmanship under normal use and maintenance as follows: (1) All complete air conditioning, heating and/or heat pump units built or sold by CM for twelve (12) months from date of unit start up or eighteen (18) months from date of shipment (from factory), whichever comes Àrst; (2) Repair and replacement parts,
which are not supplied under warranty, for nintey (90) days from date of shipment (from factory). All parts must be returned to CM’s factory in Oklahoma City, Oklahoma, freight prepaid, no later than sixty (60) days after
the date of the failure of the part; if CM determines the part to be defective and within CM’s Limited Express Warranty, CM shall, when such part has been either replaced or repaired, return such to a factory recognized dealer,
contractor or service organization, F.O.B. CM’s factory, Oklahoma City, Oklahoma, freight prepaid. The warranty on any parts repaired or replaced under warranty expires at the end of the original warranty period.
EXCEPT AS SPECIFICALLY SET FORTH HEREIN, THERE IS NO EXPRESS WARRANTY AS TO ANY OF CM’S PRODUCTS. CM MAKES NO WARRANTY AGAINST LATENT DEFECTS. CM MAKES
NO WARRANTY OF MERCHANTABILITY OF THE GOODS OR OF THE FITNESS OF THE GOODS FOR ANY PARTICULAR PURPOSE.
It is expressly understood that unless a statement is speciÀcally identiÀed as a warranty, statements made by Climate Master, Inc., a Delaware corporation, (“CM”) or its representatives, relating to CM’s products, whether oral,
written or contained in any sales literature, catalog or any other agreement, are not express warranties and do not form a part of the basis of the bargain, but are merely CM’s opinion or commendation of CM’s products.
CLIMATE MASTER, INC.
LIMITED EXPRESS WARRANTY/ LIMITATION OF REMEDIES AND LIABILITY
THE SMART SOLUTION FOR ENERGY EFFICIENCY
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C l i m a t e M a s t e r Wa t e r - S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
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c l i m a t e m a s t e r. c o m
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Revision History
Date:
Item:
Action:
POE Oil Warning
Added
Water Quality Standards Table
Updated
07/17/12
Wiring Diagrams and Matrix
Updated
01/03/11
Format - All Pages
Updated
7/26/10
Wiring Diagrams
Updated
06/11/10
Format - All Pages
Updated
01/11/10
816 Information
Removed
01/11/10
ECM-X Motor Information
Updated
11/05/09
Warranty
Updated
10/30/09
Functional Troubleshooting Table
Updated
09/15/09
Safety Features - CXM/DXM Controls
Updated
09/03/09
Optional Electric Heat and Minor Corrections
Added
07/29/09
Unit Commissioning & Operating Conditions
Data tables corrected
06/09/09
‘Unit Starting & Operating Conditions’ Section & Table
Edited and renamed ‘Unit Commissioning and Operating Conditions’
04/16/09
Shipping Bracket Removal
Updated
04/16/09
Unit Start-Up Log Sheet
Added
04/16/09
Unit Operating Conditions Tables
Updated
02/24/09
Unit Operating Conditions and Coax WPD Tables
Added
02/05/09
All
Updated
09/09/08
Pressure Testing Note
Updated
06/30/08
Shut-Off Valve Note
Added to Ground-Water Heat Pump Applications
05/21/08
Pressure Testing Language Note
Added to Unit and System Checkout
01/01/07
First Published
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IFIED TO ARI A
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ER
11/09/12
IS
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ARD 1
-1
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25
6
ISO 9001:2008
Certified
Quality: First & Always
7300 S.W. 44th Street
Oklahoma City, OK 73179
Phone: 405-745-6000
Fax: 405-745-6058
climatemaster.com
*97B0056N01*
97B0056N01
ClimateMaster works continually to improve its products. As a result, the design and specifications of each product at the time for order may be changed
without notice and may not be as described herein. Please contact ClimateMaster’s Customer Service Department at 1-405-745-6000 for specific
information on the current design and specifications. Statements and other information contained herein are not express warranties and do not form
the basis of any bargain between the parties, but are merely ClimateMaster’s opinion or commendation of its products.
The management system governing the manufacture of ClimateMaster’s products is ISO 9001:2008 certified.
ClimateMaster is a proud supporter of the Geothermal Exchange Organization - GEO. For more information visit geoexchange.org.
© ClimateMaster, Inc. 2009
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C l i m a t e M a s t e r Wa t e r - S o u r c e H e a t P u m p s
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