ClimateMaster TYH/V 024 - 060 60Hz - HFC-410A, Tranquility 22 (TY) Series Installation, Operation, & Maintenance Instruction

Tranquility® 22

(TY) Series

Models TYH/V 024 - 060

60Hz - HFC-410A

INSTALLATION, OPERATION,

& MAINTENANCE

97B0075N15

Revised: 17 December, 2014

Table of Contents

Model Nomenclature 3
General Information 5
Unit Physical Data 6
Horizontal Installation 7
Field Conversion of Air Discharge 9
Horizontal Installation 10
Vertical Installation 11
Piping Installation 13
Water-Loop Heat Pump Applications 14
Ground-Loop Heat Pump Applications 15
Ground-Loop and Ground Water Heat
Pump Applications 16
Ground-Water Heat Pump Applications 17
Water Quality Standards 19
Electrical - Line Voltage 20
Electrical - Power Wiring 21
Electrical - Power & Low Voltage Wiring 22
Electrical - Low Voltage Wiring 23
Electrical - Low Voltage Wiring for Units Using External
Motorized Water Valve 24
Electrical - Thermostat Wiring 25
Blower Performance Data 26
ECM Blower Control 27
Typical Wiring Diagram - Single Phase Units 28
Typical Wiring Diagram - Single Phase Unit with
MPC Controller 29
Typical Wiring Diagram - Three Phase Units 30
DXM2 Controls 31
DXM2 Layout and Connections 34
Unit Starting and Operating Conditions 37
Piping System Cleaning and Flushing 38
Unit and System Checkout 39
Unit Start-Up Procedure 40
Unit Operating Conditions 42
Preventive Maintenance 44
Troubleshooting 45
DXM2 Process Flow Chart 47
Functional Troubleshooting 48
Performance Troubleshooting 50
Start-Up Log Sheet 52
Functional Troubleshooting 53
Warranty (U.S. & Canada) 54
Warranty (International) 55
Revision History 56

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility

Rev.: 12/17/14

®

22 (TY) Series

This Page Intentionally Left Blank

2

ClimateMaster Water-Source Heat Pumps

THE SMART SOLUTION FOR ENERGY EFFICIENCY

Tranquility

®

22 (TY) Series

Model Nomenclature

1 2

TY

SERIES

TY = Tranquility® 22 Digital

CONFIGURATION

V = Vertical Up
H = Horizontal

UNIT SIZE

024
030
036
042

048
060

REVISION LEVEL

A = 030, 042, 048
B = 024, 036, 060

3

V

4 5 6 7

A0 2 4 DG 3 0 B L T

VOLTAGE

G = 208-230/60/1
E = 265/60/1
F = 460/60/3
H = 208-230/60/3

CONTROLS

D = DXM2
M = DXM2 w/LON
P = DXM2 w/MPC

Note: Above model nomenclature is a general reference. Consult individual engineering guides for
detailed information.

91011121314

8

Standard

WATER CIRCUIT OPTIONS

0 = None

CABINET

RANGE

ULTRA
QUIET

OPTION

1
A
J
K
2
C
L
M
3
E
N
P
4
G
R
S

15

S

STANDARD

S = Standard

SUPPLY AIR FLOW &
MOTOR CONFIGURATION

TTYV
BTYH
STYH

RETURN AIR FLOW CONFIGURATION

L = Left Return
R = Right Return
V = Left Return, Stainless Steel Drain Pan
W = Right Return, Stainless Steel Drain Pan

HEAT EXCHANGER OPTIONS

Non-Coated Air Coil

Copper

Cupro-Nickel

BG

2” FILTER

1” FILTER

RAIL

FRAME

NO

YES

NO

NO

NO

NO

YES

YES

YES

YES

NO

YES

NO

YES

NO

YES

YES

YES

1” FILTER

RAIL

YES

NO

NO

YES

NO

YES

NO

NO

YES

NO

Supply

Straight

NO

NO

NO

NO

Configuration

Top

Back

Tin Plated Air Coil

Copper

2” FILTER

FRAME

YES

NO

NO

YES

NO

NO

YES

NO

NO

YES

NO

NO

AJ

Cupro-Nickel

Rev.: 12/17/14

Motor

ECM
ECM
ECM

climatemaster.com

3

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

S

P

on

Tranquility

Rev.: 12/17/14

®

22 (TY) Series

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.

DANGER: Indicates an immediate hazardous situation,
which if not avoided will result in death or serious injury.
DANGER labels on unit access panels must be observed.

WARNING: Indicates a potentially hazardous situation,
which if not avoided could result in death or serious injury.

CAUTION: Indicates a potentially hazardous situation or
an unsafe practice, which if not avoided could result in
minor or moderate injury or product or property damage.

NOTICE: Notifi cation of installation, operation, or
maintenance information, which is important, but which is
not hazard-related.

 WARNING! 

WARNING! To avoid the release of refrigerant into the

atmosphere, the refrigerant circuit of this unit must be
serviced only by technicians who meet local, state, and
federal profi ciency requirements.

 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 fi lters
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.

torage
re-Installati

 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.

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 fi led
within 15 days, the freight company can deny the claim
without recourse.

Note: It is the responsibility of the purchaser to fi le all
necessary claims with the carrier. Notify your equipment
supplier of all damage within fi fteen (15) days of
shipment.

Storage - Equipment should be stored in its original

packaging in a clean, dry area. Store units in an upright
position at all times. Stack units a maximum of 3 units
high.

Unit Protection - Cover units on the job site with either
the original packaging or an equivalent protective
covering. Cap the open ends of pipes stored on the
job site. In areas where painting, plastering, and/or
spraying has not been completed, all due precautions
must be taken to avoid physical damage to the units
and contamination by foreign material. Physical damage
and contamination may prevent proper start-up and may
result in costly equipment clean-up.

4

ClimateMaster Water-Source Heat Pumps

THE SMART SOLUTION FOR ENERGY EFFICIENCY

Examine all pipes, fi ttings, and valves before installing
any of the system components. Remove any dirt or debris
found in or on these components.

Pre-Installation - Installation, Operation, and
Maintenance instructions are provided with each unit.
Horizontal equipment is designed for installation
above false ceiling or in a ceiling plenum. Other unit
confi gurations are typically installed in a mechanical
room. The installation site chosen should include
adequate service clearance around the unit. Before unit
start-up, read all manuals and become familiar with the
unit and its operation. Thoroughly check the system
before operation.

Prepare units for installation as follows:

1. Compare the electrical data on the unit nameplate
with ordering and shipping information to verify that
the correct unit has been shipped.

2. Keep the cabinet covered with the original packaging
until installation is complete and all plastering,
painting, etc. is fi nished.

3. Verify refrigerant tubing is free of kinks or dents and
that it does not touch other unit components.

4. Inspect all electrical connections. Connections must
be clean and tight at the terminals.

5. Remove any blower support packaging (water-to-air
units only).

6. Loosen compressor bolts on units equipped with
compressor spring vibration isolation until the
compressor rides freely on the springs. Remove
shipping restraints. (No action is required for
compressors with rubber grommets.)

7. Some airfl ow patterns are fi eld convertible (horizontal
units only). Locate the airfl ow conversion section of
this IOM.

8. Locate and verify any hot water generator (HWG),
hanger, or other accessory kit located in the
compressor section or blower section.

Tranquility

®

22 (TY) Series

Rev.: 12/17/14

General Information

 CAUTION! 

CAUTION! All three phase scroll compressors must have

direction of rotation verifi ed at start-up. Verifi cation is
achieved by checking compressor Amp draw. Amp draw
will be substantially lower compared to nameplate values.
Additionally, reverse rotation results in an elevated sound
level compared to correct rotation. Reverse rotation will result
in compressor internal overload trip within several minutes.
Verify compressor type before proceeding.

 CAUTION! 

CAUTION! DO NOT store or install units in corrosive

environments or in locations subject to temperature or
humidity extremes (e.g., attics, garages, rooftops, etc.).
Corrosive conditions and high temperature or humidity can
signifi cantly reduce performance, reliability, and service life.
Always move and store units in an upright position. Tilting
units on their sides may cause equipment damage.

 CAUTION! 

CAUTION! 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.

NOTICE! Failure to remove shipping brackets from
spring-mounted compressors will cause excessive
noise, and could cause component failure due to
added vibration.

climatemaster.com

5

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility

Rev.: 12/17/14

®

22 (TY) Series

Unit Physical Data

Tranquility®

Factory Charge HFC-410A (oz) [kg] 49 48 48 70 80 84

PSC Fan Motor & Blower ECM

Blower Wheel Size (dia x w) - (in) [mm] 9X7 9X7 9X8 9X8 10X10 11X10

Air Coil Dimensions (h x w) - (in) [mm] 20 X 17.25 20 X 17.25 24 X 21.75 24 X 21.75 24x28.25 24x28.25

Standard Filter - 1" [25.4mm] Throwaway,

Air Coil Dimensions (h x w) - (in) [mm] 16 X 22 16 X 22 20 X 25 20 X 25 20 X 35 20 X 35

Standard Filter - 1" [25.4mm] Throwaway,

Notes:
All units have TXV expansion device and 1/2” & 3/4” electrical knockouts.

22 Two-Stage (TY) Series (60Hz Only)

Model 024 030 036 042 048 060

Compressor (1 Each) Scroll Scroll Scroll Scroll Scroll Scroll

Fan Motor (hp) [W] 1/2 1/2 1/2 3/4 3/4 1

Water Connection Size

FPT (in) 3/4" 3/4" 3/4" 3/4" 1" 1"

Coax Volume (gallons) 0.323 0.323 0.738 0.89 0.738 0.939

Vertical Upfl ow

qty (in) [mm]
Weight - Operating, (lbs) [kg] 189 197 203 218 263 278
Weight - Packaged, (lbs) [kg] 194 202 209 224 270 285

Horizontal

qty (in) [mm]
Weight - Operating, (lbs) [kg] 174 182 203 218 263 278
Weight - Packaged, (lbs) [kg] 179 187 209 224 270 285

20x20 20x20 24x24 24x24

18x25 18x25 2-14x20 2-14x20 1-20x24 1-14x20 1-20x24 1-14x20

1-14x24
1-18x24

1-14x24
1-18x24

Unit Maximum Water Working Pressure

Options
Base Unit

Use the lowest maximum pressure rating when multiple options are combined.

Max Pressure PSIG [kPa]

300 [2,068]

6

ClimateMaster Water-Source Heat Pumps

THE SMART SOLUTION FOR ENERGY EFFICIENCY

Horizontal Unit Location

Units are not designed for outdoor installation. Locate
the unit in an INDOOR area that allows enough space
for service personnel to perform typical maintenance or
repairs without removing unit from the ceiling. Horizontal
units are typically installed above a false ceiling or in a
ceiling plenum. Never install units in areas subject to
freezing or where humidity levels could cause cabinet
condensation (such as unconditioned spaces subject
to 100% outside air). Consideration should be given to
access for easy removal of the fi lter and access panels.
Provide suffi cient room to make water, electrical, and
duct connection(s).

If the unit is located in a confi ned space, such as a closet,
provisions must be made for return air to freely enter the
space by means of a louvered door, etc. Any access panel
screws that would be diffi cult to remove after the unit
is installed should be removed prior to setting the unit.
Refer to Figure 3 for an illustration of a typical installation.
Refer to unit submittal data or engineering design guide
for dimensional data.

Conform to the following guidelines when selecting
unit location:

1. Provide a hinged access door in concealed-spline
or plaster ceilings. Provide removable ceiling
tiles in T-bar or lay-in ceilings. Refer to horizontal
unit dimensions for specifi c series and model in
unit submittal data. Size the access opening to
accommodate the service technician during the
removal or replacement of the compressor and the
removal or installation of the unit itself.

2. Provide access to hanger brackets, water valves and
fi ttings. Provide screwdriver clearance to access
panels, discharge collars and all electrical connections.

3. DO NOT obstruct the space beneath the unit with
piping, electrical cables and other items that prohibit
future removal of components or the unit itself.

4. Use a manual portable jack/lift to lift and support the
weight of the unit during installation and servicing.

The installation of water source heat pump units and all
associated components, parts and accessories which
make up the installation shall be in accordance with
the regulations of ALL authorities having jurisdiction
and MUST conform to all applicable codes. It is the
responsibility of the installing contractor to determine
and comply with ALL applicable codes and regulations.

Tranquility

®

22 (TY) Series

Rev.: 12/17/14

Horizontal Installation

Mounting Horizontal Units

Horizontal units have hanger kits pre-installed from the
factory as shown in Figure 1. Figure 3 shows a typical
horizontal unit installation.

Horizontal heat pumps are typically suspended above
a ceiling or within a soffi t using fi eld supplied, threaded
rods sized to support the weight of the unit.

Use four (4) fi eld supplied threaded rods and factory
provided vibration isolators to suspend the unit. Hang
the unit clear of the fl oor slab above and support the
unit by the mounting bracket assemblies only. DO NOT
attach the unit fl ush with the fl oor slab above.

Pitch the unit toward the drain as shown in Figure 2 to
improve the condensate drainage. On small units (less
than 2.5 tons/8.8kW) ensure that unit pitch does not
cause condensate leaks inside the cabinet.

Figure 1: Hanger Bracket

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Figure 2: Horizontal Unit Pitch

1/4” (6.4mm) pitch
toward drain for drainage

Drain Connection

climatemaster.com

7

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility

Rev.: 12/17/14

®

22 (TY) Series

Horizontal Installation

Figure 3: Typical Horizontal Unit Installation

Power Wiring

Supply Air

Unit Power

Insulated supply duct with
at least one 90 deg elbow
to reduce air noise

Flexible Duct

Connector

Unit Power
Disconnect

(by others)

Unit Hanger

Return Air

Thermostat

Wiring

Optional Water Control Valve

Stainless steel braid hose

with integral "J" swivel

Ball Valve with optional

integral P/T plug

Building

Loop

Air Coil - To obtain maximum performance, the air coil
should be cleaned before start-up. A 10% solution of
dishwasher detergent and water is recommended for
both sides of the coil. A thorough water rinse should
follow. UV based anti-bacterial systems may damage

coated air coils.

Notice! Installation Note - Ducted Return: Many

horizontal WSHPs are installed in a return air ceiling
plenum application (above ceiling). Vertical WSHPs are
commonly installed in a mechanical room with free return
(e.g. louvered door). Therefore, fi lter rails are the industry
standard and are included on ClimateMaster commercial
heat pumps for the purposes of holding the fi lter only.
For ducted return applications, the fi lter rail must be
removed and replaced with a duct fl ange or fi lter frame.
Canvas or fl exible connectors should also be used to
minimize vibration between the unit and ductwork.

8

ClimateMaster Water-Source Heat Pumps

THE SMART SOLUTION FOR ENERGY EFFICIENCY

Overview - Horizontal units can be fi eld converted
between side (straight) and back (end) discharge using
the instructions below.

Note: It is not possible to fi eld convert return air
between left or right return models due to the
necessity of refrigeration copper piping changes.

Preparation - It is best to fi eld convert the unit on the

ground before hanging. If the unit is already hung it
should be taken down for the fi eld conversion.

Side to Back Discharge Conversion

1. Place unit in well lit area. Remove the screws as shown
in Figure 4 to free top panel and discharge panel.

2. Lift out the access panel and set aside. Lift and rotate
the discharge panel to the other position as shown,
being careful with the blower wiring.

3. Check blower wire routing and connections for
tension or contact with sheet metal edges. Re-route if
necessary.

4. Check refrigerant tubing for contact with other
components.

5. Reinstall top panel and screws noting that the location
for some screws will have changed.

6. Manually spin the fan wheel to ensure that the wheel
is not rubbing or obstructed.

7. Replace access panels.

Tranquility

Field Conversion of Air Discharge

Figure 4: Left Return Side to Back

Water

Connection End

Water

Connection End

Water

Connection End

Side Discharge

Remove Screws

Rotate

Move to Side

Replace Screws

®

22 (TY) Series

Rev.: 12/17/14

Return Air

Return Air

Return Air

Back to Side Discharge Conversion - If the discharge is
changed from back to side, use above instruction noting
that illustrations will be reversed.

Left vs. Right Return - It is not possible to fi eld convert
return air between left or right return models due to
the necessity of refrigeration copper piping changes.
However, the conversion process of side to back or
back to side discharge for either right or left return
confi guration is the same. In some cases, it may be
possible to rotate the entire unit 180 degrees if the return
air connection needs to be on the opposite side. Note

that rotating the unit will move the piping to the
other end of the unit.

Back Discharge

Figure 5: Right Return Side to Back

Return Air

Supply Duct

Side Discharge

Return Air

Drain

Discharge Air

Back Discharge

Drain

Discharge Air

Water

Connection End

Water

Connection End

climatemaster.com

9

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

C

n

Tranquility

Rev.: 12/17/14

®

22 (TY) Series

ondensate Piping

Duct System Installatio

Horizontal Installation

Condensate Piping - Horizontal Units - A condensate

drain line must be installed and pitched away for the unit
to allow for proper drainage. This connection must meet
all local plumbing/building codes.

Pitch the unit toward the drain as shown in Figure 2 to
improve the condensate drainage. On small units (less
than 2.5 tons/8.8 kW), ensure that unit pitch does not
cause condensate leaks inside the cabinet.

Install condensate trap at each unit with the top of
the trap positioned below the unit condensate drain
connection as shown in Figure 6. Design the depth of
the trap (water-seal) based upon the amount of ESP
capability of the blower (where 2 inches [51mm] of ESP
capability requires 2 inches [51mm] of trap depth).
As a general rule, 1-1/2 inch [38mm] trap depth is the
minimum.

Each unit must be installed with its own individual trap
and connection to the condensate line (main) or riser.
Provide a means to fl ush or blow out the condensate line.
DO NOT install units with a common trap and/or vent.

Figure 6: Horizontal Condensate Connection

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* Some units include a painted drain connection.
Using a threaded pipe or similar device to clear
any excess paint accumulated inside this fitting
may ease final drain line installation.

 CAUTION! 

CAUTION! Ensure condensate line is pitched toward drain

1/8 inch per ft [11mm per m] of run.

Always vent the condensate line when dirt or air
can collect in the line or a long horizontal drain line
is required. Also vent when large units are working
against higher external static pressure than other units
connected to the same condensate main since this may
cause poor drainage for all units on the line. WHEN A

VENT IS INSTALLED IN THE DRAIN LINE, IT MUST BE
LOCATED AFTER THE TRAP IN THE DIRECTION OF
THE CONDENSATE FLOW.

Duct System Installation - Proper duct sizing and design

is critical to the performance of the unit. The duct system
should be designed to allow adequate and even airfl ow
through the unit during operation. Air fl ow through
the unit MUST be at or above the minimum stated
airfl ow for the unit to avoid equipment damage. Duct
systems should be designed for quiet operation. Refer
to Figure 3 for horizontal duct system details or Figure
8 for vertical duct system details. A fl exible connector
is recommended for both discharge and return air duct
connections on metal duct systems to eliminate the
transfer of vibration to the duct system. To maximize
sound attenuation of the unit blower, the supply and
return plenums should include internal fi berglass duct
liner or be constructed from ductboard for the fi rst few
feet. Application of the unit to uninsulated ductwork in an
unconditioned space is not recommended, as the unit’s
performance may be adversely affected.

10

At least one 90° elbow should be included in the supply
duct to reduce air noise. If air noise or excessive air fl ow
is a problem, the blower speed can be changed. For
airfl ow charts, consult submittal data for the series and
model of the specifi c unit.

If the unit is connected to existing ductwork, a previous
check should have been made to ensure that the
ductwork has the capacity to handle the airfl ow required
for the unit. If ducting is too small, as in the replacement
of a heating only system, larger ductwork should be
installed. All existing ductwork should be checked for
leaks and repaired as necessary.

ClimateMaster Water-Source Heat Pumps

THE SMART SOLUTION FOR ENERGY EFFICIENCY

on

Vertical Unit Location - Units are not designed for
outdoor installation. Locate the unit in an INDOOR
area that allows enough space for service personnel to
perform typical maintenance or repairs without removing
unit from the mechanical room/closet. Vertical units
are typically installed in a mechanical room or closet.
Never install units in areas subject to freezing or where
humidity levels could cause cabinet condensation (such
as unconditioned spaces subject to 100% outside air).
Consideration should be given to access for easy removal
of the fi lter and access panels. Provide suffi cient room to
make water, electrical, and duct connection(s).

If the unit is located in a confi ned space, such as a closet,
provisions must be made for return air to freely enter
the space by means of a louvered door, etc. Any access
panel screws that would be diffi cult to remove after
the unit is installed should be removed prior to setting
the unit. Refer to Figures 7 and 8 for typical installation
illustrations. Refer to unit submittal data or engineering
design guide for dimensional data.

Tranquility

Vertical Unit Locati

Figure 7: Vertical Unit Mounting

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®

22 (TY) Series

Rev.: 12/17/14

Vertical Installation

1. Install the unit on a piece of rubber, neoprene or
other mounting pad material for sound isolation. The
pad should be at least 3/8” [10mm] to 1/2” [13mm] in
thickness. Extend the pad beyond all four edges of
the unit.

2. Provide adequate clearance for fi lter replacement
and drain pan cleaning. Do not block fi lter access
with piping, conduit or other materials. Refer to
unit submittal data or engineering design guide for
dimensional data.

3. Provide access for fan and fan motor maintenance
and for servicing the compressor and coils without
removing the unit.

4. Provide an unobstructed path to the unit within the
closet or mechanical room. Space should be suffi cient
to allow removal of the unit, if necessary.

5. Provide access to water valves and fi ttings and
screwdriver access to the unit side panels, discharge
collar and all electrical connections.

Notice! Installation Note - Ducted Return: Many
horizontal WSHPs are installed in a return air ceiling
plenum application (above ceiling). Vertical WSHPs are
commonly installed in a mechanical room with free return
(e.g. louvered door). Therefore, fi lter rails are the industry
standard and are included on ClimateMaster commercial
heat pumps for the purposes of holding the fi lter only.
For ducted return applications, the fi lter rail must be
removed and replaced with a duct fl ange or fi lter frame.
Canvas or fl exible connectors should also be used to
minimize vibration between the unit and ductwork.

Figure 8: Typical Vertical Unit Installation Using
Ducted Return Air

Internally insulate return
transition duct to reduce noise

climatemaster.com

Internally insulate supply
duct for first 1.2 m each way
to reduce noise

Use turning vanes in
supply transition

Flexible canvas duct
connector to reduce
noise and vibration

Remove supply duct
flanges from inside blower
compartment and install
on supply air opening of
unit. Do not use a supply
air plenum/duct smaller
than the size of the supply
duct flanges.

Rounded return
transition

Rev.: 2/13

11

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility

Rev.: 12/17/14

®

22 (TY) Series

Vertical Installation

Sound Attenuation for Vertical Units - Sound

attenuation is achieved by enclosing the unit within a
small mechanical room or a closet. Additional measures
for sound control include the following:

1. Mount the unit so that the return air inlet is 90° to the
return air grille. Refer to Figure 9. Install a sound baffl e
as illustrated to reduce line-of sight sound transmitted
through return air grilles.

2. Mount the unit on a rubber or neoprene isolation pad
to minimize vibration transmission to the building
structure.

Figure 9: Vertical Sound Attenuation

Condensate Piping for Vertical Units - A condensate

line must be installed and pitched away from the unit to
allow for proper drainage. This connection must meet
all local plumbing/building codes. Vertical units utilize
a condensate hose inside the cabinet as a trapping
loop; therefore an external trap is not necessary. Figure
10a shows typical condensate connections. Figure 10b
illustrates the internal trap for a typical vertical heat
pump. Each unit must be installed with its own individual
vent (where necessary) and a means to fl ush or blow
out the condensate drain line. Do not install units with a
common trap and/or vent.

Figure 10a: Vertical Condensate Drain

*3/4" FPT

Vent

3/4" PVC

1/8" per foot

slope to drain

Return
Air Inlet

Notice! Units with clear plastic drain lines should
have regular maintenance (as required) to avoid
buildup of debris, especially in new construction.

Water

Connections

* Some units include a painted drain connection. Using a
threaded pipe or similar device to clear any excess paint
accumulated inside this fitting may ease final drain line installation.

Alternate

Condensate

Location

Figure 10b: Vertical Internal Condensate Trap

12

ClimateMaster Water-Source Heat Pumps

THE SMART SOLUTION FOR ENERGY EFFICIENCY

Installation of Supply and Return Piping

Follow these piping guidelines.

1. Install a drain valve at the base of each supply and
return riser to facilitate system fl ushing.

2. Install shut-off / balancing valves and unions at each
unit to permit unit removal for servicing.

3. Place strainers at the inlet of each system circulating
pump.

4. Select the proper hose length to allow slack between
connection points. Hoses may vary in length by +2%
to -4% under pressure.

5. Refer to Table 1. Do not exceed the minimum bend
radius for the hose selected. Exceeding the minimum
bend radius may cause the hose to collapse, which
reduces water fl ow rate. Install an angle adapter to
avoid sharp bends in the hose when the radius falls
below the required minimum.

Tranquility

®

22 (TY) Series

Rev.: 12/17/14

Piping Installation

 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 CPVC piping, may cause failure of
the PVC/CPVC. PVC/CPVC piping should never be used
as supply or return water piping with water source heat
pump products containing HFC-410A as system failures and
property damage may result.

 CAUTION! 

CAUTION! Corrosive system water requires corrosion

resistant fi ttings and hoses, and may require water treatment.

 CAUTION! 

CAUTION! Do not bend or kink supply lines or hoses.

Insulation is not required on loop water piping except
where the piping runs through unheated areas, outside
the building or when the loop water temperature is
below the minimum expected dew point of the pipe
ambient conditions. Insulation is required if loop water
temperature drops below the dew point (insulation is
required for ground loop applications in most climates).

Pipe joint compound is not necessary when Tefl on®
thread tape is pre-applied to hose assemblies or when
fl ared-end connections are used. If pipe joint compound
is preferred, use compound only in small amounts on
the external pipe threads of the fi tting adapters. Prevent
sealant from reaching the fl ared surfaces of the joint.

Note: When antifreeze is used in the loop, ensure that
it is compatible with the Tefl on

®

tape or pipe joint

compound that is applied.

Maximum allowable torque for brass fi ttings is 30 ft-lbs
[41 N-m]. If a torque wrench is not available, tighten
fi nger-tight plus one quarter turn. Tighten steel fi ttings
as necessary.

Optional pressure-rated hose assemblies designed
specifi cally for use with ClimateMaster units are available.
Similar hoses can be obtained from alternate suppliers.
Supply and return hoses are fi tted with swivel-joint fi ttings
at one end to prevent kinking during installation.

 CAUTION! 

CAUTION! Piping must comply with all applicable codes.

Table 1: Metal Hose Minimum Bend Radii

Hose Diameter Minimum Bend Radii

1/2" [12.7mm] 2-1/2" [6.4cm]
3/4" [19.1mm] 4" [10.2cm]

1" [25.4mm] 5-1/2" [14cm]

1-1/4" [31.8mm] 6-3/4" [17.1cm]

NOTICE! Do not allow hoses to rest against structural
building components. Compressor vibration may
be transmitted through the hoses to the structure,
causing unnecessary noise complaints.

Figure 11: Supply/Return Hose Kit

MPT

Rib Crimped

Length

(2 ft [0.6m] Length Standard)

Swivel
Brass
Fitting

Brass

Fitting

MPT

Refer to Figure 11 for an illustration of a typical supply/
return hose kit. Adapters secure hose assemblies to the
unit and risers. Install hose assemblies properly and check
regularly to avoid system failure and reduced service life.

climatemaster.com

13

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility

Rev.: 12/17/14

®

22 (TY) Series

Water-Loop Heat Pump Applications

Commercial Water Loop Applications

Commercial systems typically include a number of
units connected to a common piping system. Any unit
plumbing maintenance work can introduce air into the
piping system; therefore air elimination equipment
is a major portion of the mechanical room plumbing.
Consideration should be given to insulating the
piping surfaces to avoid condensation. ClimateMaster
recommends unit insulation any time the water
temperature is expected to be below 60ºF (15.6ºC). Metal
to plastic threaded joints should never be used due to
their tendency to leak over time.

®

Tefl o n
minimize internal fouling of the heat exchanger. Do
not over tighten connections and route piping so as
not to interfere with service or maintenance access.
Hose kits are available from ClimateMaster in different
confi gurations for connection between the unit and the
piping system. Depending upon selection, hose kits
may include shut off valves, P/T plugs for performance
measurement, high pressure stainless steel braided hose,
“Y” type strainer with blow down valve, and/or “J” type
swivel connection.

tape thread sealant is recommended to

The piping system should be fl ushed to remove dirt,
piping chips, and other foreign material prior to
operation (see “Piping System Cleaning and Flushing
Procedures” in this manual). The fl ow rate is usually set
between 2.25 and 3.5 gpm per ton [2.9 and 4.5 l/m per
kW] of cooling capacity. ClimateMaster recommends 3
gpm per ton [3.9 l/m per kW] for most applications of
water loop heat pumps. To ensure proper maintenance
and servicing, P/T ports are imperative for temperature
and fl ow verifi cation, as well as performance checks.

Water loop heat pump (cooling tower/boiler) systems
typically utilize a common loop, maintained between
60 - 90°F [16 - 32°C]. The use of a closed circuit evaporative
cooling tower with a secondary heat exchanger between
the tower and the water loop is recommended. If an
open type cooling tower is used continuously, chemical
treatment and fi ltering will be necessary.

Typical Water-Loop Application

3/8" [10mm] threaded rods

(by others)

Optional Water Control Valve

Stainless steel braid hose

with integral "J" swivel

Ball Valve with optional

integral P/T plug

Building

Loop

Supply Air

Insulated supply duct with
at least one 90 deg elbow
to reduce air noise

Power Wiring

Unit Power
Disconnect

(by others)

Unit Hanger

Return Air

Unit Power

Thermostat

Wiring

Low Water Temperature Cutout Setting - DXM2 Control

When antifreeze is selected, the LT1 jumper (JW3) should be clipped to select the low temperature (antifreeze 10.0°F
[-12.2°C]) setpoint and avoid nuisance faults (see “Low Water Temperature Cutout Selection” in this manual). Note:

Low water temperature operation requires extended range equipment.

14

ClimateMaster Water-Source Heat Pumps

THE SMART SOLUTION FOR ENERGY EFFICIENCY

 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

The typical closed loop ground source system is shown in
Figure 13. All earth loop piping materials should be limited
to polyethylene fusion only for in-ground sections of the
loop. Galvanized or steel fi ttings should not be used at any
time due to their tendency to corrode. All plastic to metal
threaded fi ttings should be avoided due to their potential
to leak in earth coupled applications. A fl anged fi tting
should be substituted. P/T plugs should be used with units
that do not include vFlow so that fl ow can be measured
using the pressure drop of the unit heat exchanger. Units
equipped with any of the four vFlow confi gurations have
built in Schrader ports. Water temperature may be viewed
on the iGate communicating thermostat.

Earth loop temperatures can range between 25 and 110°F
[-4 to 43°C]. Flow rates between 2.25 and 3 gpm [2.41 to

3.23 l/m per kW] of cooling capacity is recommended in

these applications.

Tranquility

®

22 (TY) Series

Rev.: 12/17/14

Ground-Loop Heat Pump Applications

Test individual horizontal loop circuits before backfi lling.
Test vertical U-bends and pond loop assemblies prior to
installation. Pressures of at least 100 psi [689 kPa] should
be used when testing. Do not exceed the pipe pressure
rating. Test entire system when all loops are assembled.

Flushing the Earth Loop

Upon completion of system installation and testing, fl ush
the system to remove all foreign objects and purge to
remove all air.

Antifreeze

I

n areas where minimum entering loop temperatures
drop below 40°F [5°C] or where piping will be routed
through areas subject to freezing, antifreeze is required.
Alcohols and glycols are commonly used as antifreeze;
however your local sales offi ce should be consulted to
determine the antifreeze best suited to your area. Freeze
protection should be maintained to 15°F [9°C] below
the lowest expected entering loop temperature. For
example, if 30°F [-1°C] is the minimum expected entering
loop temperature, the leaving loop temperature would
be 22 to 25°F [-6 to -4°C] and freeze protection should be
at 15°F [-10°C]. Calculation is as follows:
30°F - 15°F = 15°F [-1°C - 9°C = -10°C].

All alcohols should be premixed and pumped from
a reservoir outside of the building when possible or
introduced under the water level to prevent fumes.
Calculate the total volume of fl uid in the piping system.
Then use the percentage by volume shown in table
2 for the amount of antifreeze needed. Antifreeze
concentration should be checked from a well mixed
sample using a hydrometer to measure specifi c gravity.

Low Water Temperature Cutout Setting - DXM2
Control

When antifreeze is selected, the LT1 jumper (JW3) should
be clipped to select the low temperature (antifreeze

10.0°F [-12.2°C]) setpoint and avoid nuisance faults (see
“Low Water Temperature Cutout Selection” in this
manual). Note: Low water temperature operation

requires extended range equipment.

Table 2: Antifreeze Percentages by Volume

Type

Methanol
100% USP food grade Propylene Glycol
Ethanol*

* Must not be denatured with any petroleum based product

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%

climatemaster.com

21%
25%
25%

16%
22%
20%

10%
15%
14%

15

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility

Rev.: 12/17/14

®

22 (TY) Series

Ground-Loop and Ground Water Heat Pump Applications

Ground-Loop Heat Pump Applications
Typical Closed Loop with Central Pumping

T o Thermostat

Water Out

High and
Low Voltage
Knockouts

Water In

Shut Off

Ball Valves

for Isolation

Vibration Isolation Pad

Ground Water Heat Pump Applications
Typical Open Loop/Well

T o Thermostat

High and
Low Voltage
Knockouts

Optional

Filter

Boiler

Drains

Pressure

Tank

Shut Off

Ball Valves

for Isolation

Water Out

Water In

Vibration Isolation Pad

16

ClimateMaster Water-Source Heat Pumps

THE SMART SOLUTION FOR ENERGY EFFICIENCY

Open Loop - Ground Water Systems

ppp

p

Open Loop - Ground Water Systems

loop piping is shown in accompanying illustration. 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 fl ushing of the heat exchanger. Shut off valves
should be positioned to allow fl ow through the coax via the
boiler drains without allowing fl ow into the piping system.
P/T plugs should be used so that flow can be measured
using the pressure drop of the unit heat exchanger. Water
temperature may be viewed on the iGate communicating
thermostat. Supply and return water piping materials
should be limited to copper, HPDE, or other acceptable
high temperature material. Note that PVC or CPVC
material is not recommended as they are not compatible
with the polyolester oil used in HFC-410A products.

- Typical open

 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 CPVC piping, may cause failure of
the PVC/CPVC. PVC/CPVC piping should never be used
as supply or return water piping with water source heat
pump products containing HFC-410A as system failures and
property damage may result.

Tranquility

®

22 (TY) Series

Rev.: 12/17/14

Ground-Water Heat Pump Applications

Water Quality Standards

for water quality requirements. Scaling potential should be
assessed using the pH/Calcium hardness method. If the pH
<7.5 and the calcium hardness is less than 100 ppm, scaling
potential is low. If this method yields numbers out of range
of those listed, the Ryznar Stability and Langelier Saturation
indecies should be calculated. Use the appropriate scaling
surface temperature for the application, 150°F [66°C] for
direct use (well water/open loop); 90°F [32°F] for indirect
use. A monitoring plan should be implemented in these
probable scaling situations. Other water quality issues
such as iron fouling, corrosion prevention and erosion and
clogging should be referenced in Table 3.

Expansion Tank and Pump
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 fi eld, adjacent stream or pond, etc.). Most local codes
forbid the use of sanitary sewer for disposal. Consult your
local building and zoning department to assure compliance
in your area.

- Table 3 should be consulted

- Use a closed, bladder-type

Water quantity should be plentiful and of good quality.
Consult table 3 for water quality guidelines. The unit can
be ordered with either a copper or cupro-nickel water heat
exchanger. Consult Table 3 for recommendations. Copper
is recommended for closed loop systems and open
loop ground water systems that are not high in mineral
content or corrosiveness. In conditions anticipating heavy
scale formation or in brackish water, a cupro-nickel heat
exchanger is recommended. In ground water situations
where scaling could be heavy or where biological growth
such as iron bacteria will be present, an open loop system
is not recommended. Heat exchanger coils may over
time lose heat exchange capabilities due to build up of
mineral deposits. Heat exchangers must only be serviced
by a qualifi ed technician, as acid and special pumping
equipment is required. Desuperheater coils can likewise
become scaled and possibly plugged. In areas with
extremely hard water, the owner should be informed that
the heat exchanger may require occasional acid fl ushing.
In some cases, the desuperheater option should not be
recommended due to hard water conditions and additional
maintenance required.

Water Control Valve

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. Note
the special wiring diagrams for slow closing valves (shown
later in this manual).

- Always maintain water pressure in

climatemaster.com

17

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility

Rev.: 12/17/14

®

22 (TY) Series

Ground-Water Heat Pump Applications

Flow Regulation

by two methods. One method of fl ow regulation involves
simply adjusting the ball valve or water control valve on
the discharge line. Measure the pressure drop through the
unit heat exchanger, and determine fl ow rate from Tables
8a through 8e. Since the pressure is constantly varying, two
pressure gauges may be needed. Adjust the valve until
the desired fl ow of 1.5 to 2 gpm per ton [2.0 to 2.6 l/m per
kW] is achieved. A second method of fl ow control requires
a fl ow control device mounted on the outlet of the water
control valve. The device is typically a brass fi tting with
an orifi ce of rubber or plastic material that is designed
to allow a specifi ed fl ow rate. On occasion, fl ow control
devices may produce velocity noise that can be reduced by
applying some back pressure from the ball valve located
on the discharge line. Slightly closing the valve will spread
the pressure drop over both devices, lessening the velocity
noise.

- Flow regulation can be accomplished

Note: When EWT is below 50°F [10°C], 2 gpm per
ton (2.6 l/m per kW) is required.
Water Coil Low Temperature Limit Setting

- For all
open loop systems the 30°F [-1.1°C] LT1 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.

18

ClimateMaster Water-Source Heat Pumps

THE SMART SOLUTION FOR ENERGY EFFICIENCY

Tranquility

®

22 (TY) Series

Water Quality Standards

Table 3: Water Quality Standards

Water Quality

Parameter

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

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
Stability Index If >7.5 minimize steel pipe use.

Langelier
Saturation Index

Iron Fouling

Iron Fe2+(Ferrous)
(Bacterial Iron potential)

Iron Fouling

Corrosion Prevention

pH

Hydrogen Sulfide (H

Ammonia ion as hydroxide, chloride,
nitrate and sulfate compounds

Maximum
Chloride Levels

S)

2

Erosion and Clogging

Particulate Size and
Erosion

The ClimateMaster Water Quality Table provides water quality requirements for ClimateMaster coaxial heat exchangers. The water should be evaluated by an
independent testing facility comparing to this Table and when properties are outside of these 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 and any other components
damaged by a leak.

Notes:

• Closed Recirculating system is identified by a

• Recirculating open wells should observe the open recirculating design considerations.

• NR - Application not recommended.

• "-" No design Maximum.

HX

Material

All

All

All

All

All

All

All

All

Copper

Cupronickel

304 S

S - <400 ppm <250 ppm <150 ppm

316 S

S - <1000 ppm <550 ppm < 375 ppm

Titanium - >1000 ppm >550 ppm >375 ppm

All

closed pressurized piping system.

Closed

Recirculating

-

- 6.0 - 7.5

-

-

-

6 - 8.5

Monitor/treat as

needed

- <0.5 ppm

-

- <20ppm NR NR

- <150 ppm NR NR

<10 ppm of particles
and a maximum
velocity of 1.8 m/s
Filtered for maximum
841 micron [0.84 mm,
20 mesh] size.

Open Loop and Recirculating Well

pH < 7.5 and Ca Hardness <100ppm

If <-0.5 minimize steel pipe use. Based upon 66°C HWG and

2+

(ferrous)>0.2 ppm with pH 6 - 8, O2<5 ppm check for iron bacteria.

If Fe

Above this level deposition will occur.

Minimize steel pipe below 7 and no open tanks with pH <8

At H

S>0.2 ppm, avoid use of copper and copper nickel piping or HX's.

2

Copper alloy (bronze or brass) cast components are OK to <0.5 ppm.

<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.

Rotten egg smell appears at 0.5 ppm level.

Maximum Allowable at maximum water temperature.

10$C24$C38

-0.5 to +0.5

Direct well, 29°C Indirect Well HX

<0.2 ppm (Ferrous)

<0.5 ppm of Oxygen

6 - 8.5

<0.5 ppm

Rev.: 12/17/14

C

Rev.: 5/6/2014 S

climatemaster.com

19

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility

Rev.: 12/17/14

®

22 (TY) Series

Electrical - Line Voltage

Electrical - Line Voltage

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 fi eld connections that must be made by
the installing (or electrical) contractor. All fi nal electrical
connections must be made with a length of fl exible conduit
to minimize vibration and sound transmission to the
building.

General Line Voltage Wiring

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.

Transformer

- All 208/230 voltage units are factory wired
for 208 volt. If supply voltage is 230 volt, installer must
rewire transformer. See wire diagram for connections.

- All fi eld installed wiring,

- Be sure the available

 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 fi eld installed

electrical wiring. Unit terminals are not designed to accept
other types of conductors.

Standard Unit

Compressor

RLA LRA Qty

Fan Motor

FLA

Total Unit

FLA

Min Circ

Amp

Max Fuse/

HACR

024

030

036

042

048

060

Voltage

Code

G 208/230/60/1 197/252 11.7 58.3 1 3.9 15.6 18.5 30
E 265/60/1 239/292 9.1 54.0 1 3.2 12.3 14.6 20
H 208/230/60/3 197/252 6.5 55.4 1 3.9 10.4 12.0 15

F* 460/60/3* 414/506 3.5 28.0 1 3.2 6.7 7.6 15

G 208/230/60/1 197/252 13.1 73.0 1 3.9 17.0 20.3 30
E 265/60/1 239/292 10.2 60.0 1 3.2 13.4 16.0 25
H 208/230/60/3 197/252 8.7 58.0 1 3.9 12.6 14.8 20

F* 460/60/3* 414/506 4.3 28.0 1 3.2 7.5 8.6 15

G 208/230/60/1 197/252 15.3 83.0 1 3.9 19.2 23.0 35
E 265/60/1 239/292 13.0 72.0 1 3.2 16.2 19.5 30
H 208/230/60/3 197/252 11.6 73.0 1 3.9 15.5 18.4 30

F* 460/60/3* 414/506 5.7 38.0 1 3.2 8.9 10.3 15

G 208/230/60/1 197/252 17.9 96.0 1 5.2 23.1 27.6 45
H 208/230/60/3 197/252 14.2 88.0 1 5.2 19.4 23.0 35

F* 460/60/3* 414/506 6.2 44.0 1 4.7 10.9 12.5 15

G 208/230/60/1 197/252 21.2 104.0 1 5.2 26.4 31.7 50
E 265/60/1 239/292 16.0 109.7 1 4.7 20.7 24.7 40
H 208/230/60/3 197/252 14.0 83.1 1 5.2 19.2 22.7 35

F* 460/60/3* 414/506 6.4 41.0 1 4.7 11.1 12.7 15

G 208/230/60/1 197/252 27.1 152.9 1 6.9 34.0 40.8 60
E 265/60/1 239/292 22.4 130.0 1 6.0 28.4 34.0 50
H 208/230/60/3 197/252 16.5 110.0 1 6.9 23.4 27.5 40

F* 460/60/3* 414/506 7.2 52.0 1 6.0 13.2 15.0 20

Voltage

Model

HACR circuit breaker in USA only
Wire length based on one way measurement with 2% voltage drop
Wire size based on 60°C copper conductor

All fuses Class RK-5

* NEUTRAL CONNECTION REQUIRED! All F Voltage (460 vac) units require a four wire power supply with neutral. ECM motor is rated
265 vac and is wired between one hot leg and neutral.

Min/Max

Voltage

20

ClimateMaster Water-Source Heat Pumps

THE SMART SOLUTION FOR ENERGY EFFICIENCY

 WARNING! 

WARNING! Disconnect electrical power source to prevent

injury or death from electrical shock.

 CAUTION! 

CAUTION! Use only copper conductors for fi eld installed

electrical wiring. Unit terminals are not designed to accept
other types of conductors.

Electrical - Line Voltage

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 fi eld connections that must be made by
the installing (or electrical) contractor. All fi nal electrical
connections must be made with a length of fl exible conduit
to minimize vibration and sound transmission to the
building.

- All fi eld installed wiring,

Tranquility

®

22 (TY) Series

Rev.: 12/17/14

Electrical - Power Wiring

Power Connection -

by connecting the incoming line voltage wires to the “L”
side of the contractor as shown in the unit wiring diagram.
Consult electrical data tables for correct fuse size.

460 volt units require a neutral wire.

Transformer -

for 208 volt. If supply voltage is 230 volt, installer must
rewire transformer. See wire diagram for connections.

Line voltage connection is made

All 208/230 voltage units are factory wired

General Line Voltage Wiring

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.

- Be sure the available

climatemaster.com

21

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility

Rev.: 12/17/14

®

22 (TY) Series

Electrical - Power & Low Voltage Wiring

ELECTRICAL - LOW VOLTAGE WIRING

Thermostat Connections - The thermostat will be wired
to the DXM2 board located within the unit control box.
Refer to the unit wiring diagram for specifi c details.

Low Water Temperature Cutout Selection - The DXM2
control allows the fi eld selection of low water (or water­antifreeze solution) temperature limit by clipping jumper
JW3, which changes the sensing temperature associated
with thermistor LT1. Note that the LT1 thermistor is
located on the refrigerant line between the coaxial heat
exchanger and expansion device (TXV). Therefore, LT1 is
sensing refrigerant temperature, not water temperature,
which is a better indication of how water fl ow rate/
temperature is affecting the refrigeration circuit.

The factory setting for LT1 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 17 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 60°F [15.6°C] must include the
optional water/refrigerant circuit insulation package to
prevent internal condensation.

22

ClimateMaster Water-Source Heat Pumps

THE SMART SOLUTION FOR ENERGY EFFICIENCY

A

HP

Figure 17: LT1 Limit Setting

Fault

Status

Off On

1 2 3 4

Off On

1 2 3 4 5 6 7 8

S3

Off On

1 2 3 4 5 6 7 8

cc1

elay

S1

cc2

elay

P11

T1

AO1

Gnd

Gnd

AO2

JW3-LT1 jumper should be clipped for low temperature

(antifreeze) operation

S2

A0-1 A0-2

P10

T2 T2 T3 T3 T4 T4

Accessory Connections - A terminal paralleling the
compressor contactor coil has been provided on the DXM2
control. Terminal “A” is designed to control accessory
devices. Note: This terminal should be used only with 24
Volt signals and not line voltage. Terminal “A” is energized
with the compressor contactor.

The DXM2 controller includes two accessory relays ACC1
and ACC2. Each relay includes a normally open (NO) and
a normally closed (NC) contact. Accessory relays may be
confi gured to operate as shown in the tables below.

Accessory Relay 1 Confi guration

DIP 2.1 DIP 2.2 DIP 2.3 ACC1 Relay Option

ON ON ON Cycle with fan

OFF ON ON N/A for Residential Applications

ON OFF ON Water valve – Slow opening

ON ON OFF Outside air damper
OFF ON OFF ClimaDry option – Dehumidistat
OFF OFF OFF ClimaDry option – Humidistat
OFF OFF ON N/A for Residential Applications

ON OFF OFF N/A for Residential Applications

All other DIP combinations are invalid

Accessory Relay 2 Confi guration

DIP 2.4 DIP 2.5 DIP 2.6 ACC2 Relay Option

ON ON ON

OFF ON ON

ON OFF ON

OFF OFF ON

ON ON OFF

All other DIP combinations are invalid

N/A for Residential Applications

JW3

12

RV

T5

Relay

Comp
Relay

P9

T5

T6 T6

1

4

24Vdc

CCG

CC

CCH
Relay

DXM2 PCB

Cycle with compressor

Water valve – Slow opening

Humidifi er

Outside air damper

climatemaster.com

LP

LP
LT1
LT1
LT2
LT2

RV

RV
CO
CO

P7

EH1
EH2

P6

Tranquility

®

22 (TY) Series

Rev.: 12/17/14

Electrical - Low Voltage Wiring

Figure 18: Accessory Wiring

P2 Terminal Strip

Typical

Wate r
Valve

Water Solenoid Valves - An external solenoid valve(s)

should be used on ground water installations to shut off
fl ow to the unit when the compressor is not operating.
A slow closing valve may be required to help reduce
water hammer. Figure 18 shows typical wiring for a 24VAC
external solenoid valve. Figures 19 and 20 illustrate
typical slow closing water control valve wiring for Taco
500 series (ClimateMaster P/N AVM) and Taco SBV
series valves. Slow closing valves take approximately
60 seconds to open (very little water will fl ow before 45
seconds). Once fully open, an end switch allows the
compressor to be energized. Only relay or triac based
electronic thermostats should be used with slow closing
valves. When wired as shown, the slow closing valve will
operate properly with the following notations:

1. The valve will remain open during a unit lockout.

2. The valve will draw approximately 25-35 VA through
the “Y” signal of the thermostat.

Note: This valve can overheat the anticipator of an
electromechanical thermostat. Therefore, only relay or
triac based thermostats should be used.

Two-stage Units

Tranquility® 22
two parallel valves for ground water applications to limit
water use during fi rst stage operation. For example, at 1.5
gpm/ton [2.0 l/m per kW], a TY048 unit requires 6 gpm [23
l/m] for full load (2nd stage) operation, but only 4 gpm [15
l/m] during 1st stage operation. Since the unit will operate
on fi rst stage 80-90% of the time, signifi cant water savings
can be realized by using two parallel solenoid valves with two
fl ow regulators. In the example above, stage one solenoid
would be installed with a 4 gpm [15 l/m] fl ow regulator on
the outlet, while stage two would utilize a 2 gpm [8 l/m] fl ow
regulator. When stage one is operating, the second solenoid
valve will be closed. When stage two is operating, both
valves will be open, allowing full load fl ow rate.

Figure 21 illustrates piping for two-stage solenoid valves.
Review fi gures 18-20 for wiring of stage one valve. Stage
two valve should be wired between terminal “Y2” and
terminal “C.” NOTE: When EWT is below 50°F [10°C], 2
gpm per ton (2.6 l/m per kW) is required.

(TY) two-stage units should be designed with

23

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility

Rev.: 12/17/14

®

22 (TY) Series

Electrical - Low Voltage Wiring for Units Using External Motorized Water Valve

Water Valve Wiring

Figure 19: AVM Valve Wiring Figure 20: Taco SBV Valve Wiring

C

1

Heater Switch

C

Thermostat

Figure 21: Two-Stage Piping

Y1

2

3

Taco Valve

AVM

Y1

Solenoid

Valve

Flow

Regulator

OUT

IN

Stage 2

Stage 1

From Water Source

NOTE: Shut-off valves, strainers and
other required components not shown.

To Discharge

24

ClimateMaster Water-Source Heat Pumps

THE SMART SOLUTION FOR ENERGY EFFICIENCY

Thermostat Installation - The thermostat should be
located on an interior wall in a larger room, away from
supply duct drafts. DO NOT locate the thermostat in
areas subject to sunlight, drafts or on external walls.
The wire access hole behind the thermostat may in
certain cases need to be sealed to prevent erroneous
temperature measurement. Position the thermostat
back plate against the wall so that it appears level and
so the thermostat wires protrude through the middle

Figure 22a: Conventional 3 Heat / 2 Cool
Thermostat Connection to DXM2 Control

Thermostat

Compressor

Compressor Stage 2

Auxiliary Heat

Dehumidification

Reversing Valve

Fan

24Vac Hot

24Vac Common

Fault LED

Y1
Y2

W

DH

O
G
R

C

L

DXM2
Board

Y1
Y2

W

H

O

G
R
C

AL1

Tranquility

®

22 (TY) Series

Rev.: 12/17/14

Electrical - Thermostat Wiring

of the back plate. Mark the position of the back plate
mounting holes and drill holes with a 3/16” (5mm) bit.
Install supplied anchors and secure plate to the wall.
Thermostat wire must be 18 AWG wire. Representative
thermostat wiring is shown in Figures 22a-b however,
actual wiring connections should be determined from the
thermostat IOM and or unit wiring diagram. Practically
any heat pump thermostat will work with ClimateMaster
units, provided it has the correct number of heating and
cooling stages.

Figure 22b: Communicating Thermostat Connection
to

DXM2 Control

iGate™ Thermostat

24Vac Common

24Vac Hot

ATC32U**

C
R

Comm +
Comm -

A+

B-

OD

GND

ID

DXM2

Gnd

A+

B-

24V

Outdoor

Sensor

(Optiona)

Remote Indoor

Sensor

(Optiona)

Notes:

1) ECM automatic dehumidification mode operates with dehumidification airflows
in the cooling mode when the dehumidification output from thermostat is active.
Normal heating and cooling airflows are not affected.

2) DXM2 board DIP switch S2-7 must be in the auto dehumidification mode for
automatic dehumidification

3) DH connection not possible with units with internal pump. Use ATC32U**.

4) Only use ATC Communicating Thermostat when using Humidifier (H Input) with
units with internal flow controller.

Field Wiring
Factory Wiring

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25

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility

Rev.: 12/17/14

®

22 (TY) Series

Blower Performance Data

TY Standard Unit - No Reheat

Model

024 0.75 1/2

030 0.5 1/2

036 0.6 1/2

042 0.6 3/4

048 0.75 3/4

060 0.75 1

Max ESP

(in wg)

Fan

Motor

(hp)

Range

Default 750 575 650 500 750 575 350 750

Maximum 850 650 800 600 850 850 850 850

Minimum 600 450 600 450 600 450 300 650

Default 950 650 800 575 950 650 450 950

Maximum 1100 750 1000 700 1100 1100 1100 1100

Minimum 750 525 750 525 750 525 375 750

Default 1125 750 975 650 1125 750 525 1125

Maximum 1250 950 1200 800 1250 1250 1250 1250

Minimum 900 600 900 600 900 600 450 900

Default 1300 925 1125 825 1300 925 600 1300

Maximum 1475 1100 1400 1000 1475 1475 1475 1475

Minimum 1050 750 1050 750 1050 750 525 1050

Default 1500 1125 1300 975 1500 1125 700 1500

Maximum 1700 1300 1600 1200 1700 1700 1700 1700

Minimum 1200 900 1200 900 1200 900 600 1350

Default 1875 1500 1625 1300 1875 1500 875 1875

Maximum 2100 1700 2000 1600 2100 2100 2100 2100

Minimum 1500 1200 1500 1200 1500 1200 750 1500

Cooling Mode Dehumid Mode Heating Mode

Stg 2 Stg 1 Stg 2 Stg 1 Stg 2 Stg 1

Fan Only

Mode

Aux Emerg

Mode

Airfl ow is controlled within 5% up to the Max ESP shown with wet coil.
Performance shown is with wet coil and factory air fi lters.

26

ClimateMaster Water-Source Heat Pumps

THE SMART SOLUTION FOR ENERGY EFFICIENCY

The ECM fan is controlled directly by the DXM2 control
board that converts thermostat inputs and CFM settings
to signals used by the ECM motor controller. To take full
advantage of the ECM motor features, a communicating
multi-stage thermostat should be used (ATC32U**).

The DXM2 control maintains a selectable operating
airfl ow [CFM] for each heat pump operating mode. For
each operating mode there are maximum and minimum
airfl ow limits. See the ECM Blower Performance tables
for the maximum, minimum, and default operating
airfl ows.

Airfl ow levels are selected using the confi guration menus
of a communicating thermostat (ATC32U**) or diagnostic
tool (ACDU**). The confi guration menus allow the
installer to independently select and adjust the operating
airfl ow for each of the operating modes. Air fl ow can be
selected in 25 CFM increments within the minimum and
maximum limits shown in the ECM Blower Performance
Table. The blower operating modes include:

• First Stage Cooling (Y1 & O)

• Second Stage Cooling (Y1, Y2, & O)

• First Stage Cooling in Dehumidification Mode
(Y1, O, & Dehumid)

• Second Stage Cooling in Dehumidification Mode
(Y1, Y2, O, & Dehumid)

• First Stage Heating (Y1)

• Second Stage Heating (Y1 & Y2)

• Third Stage (Auxiliary) Heating (Y1, Y2, & W)

• Emergency Heating (W with no Y1 or Y2)

• Fan (G with no Y1, Y2, or W)

Tranquility

®

22 (TY) Series

Rev.: 12/17/14

ECM Blower Control

The ramp down feature is eliminated during an ESD
(Emergency Shut Down) situation. When the DXM2
ESD input is activated, the blower and all other control
outputs are immediately de-activated.

The ramp down feature (also known as the heating or
cooling “Off Delay”) is fi eld selectable by the installer.
The allowable range is 0 to 255 seconds.

Special Note for AHRI Testing:

To achieve rated airfl ow for AHRI testing purposes, it is
necessary to change the CFM settings to rated airfl ow.

It is highly recommended that ATC32U** or ACDU**
be used to set dehumidifi cation mode electronically.
Dehumidifi cation can NOT be selected when using a
non-communicating thermostat with a vFlow™ unit with
Internal Flow Controller (pump). For dehumidifi cation
settings on other units using the non-communicating
stat, refer to DXM2 AOM (part #97B0003N15).

The ECM motor includes “soft start” and “ramp down”
features. The soft start feature is a gentle increase of
motor rpm at blower start up. This creates a much quieter
blower start cycle.

The ramp down feature allows the blower to slowly
decrease rpm to a full stop at the end of each blower
cycle. This creates a much quieter end to each blower
cycle and adds overall unit effi ciency.

climatemaster.com

27

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility

Rev.: 12/17/14

®

22 (TY) Series

Typical Wiring Diagram - Single Phase Units

28

ClimateMaster Water-Source Heat Pumps

THE SMART SOLUTION FOR ENERGY EFFICIENCY

Tranquility

®

22 (TY) Series

Rev.: 12/17/14

Typical Wiring Diagram - Single Phase Unit with MPC Controller

climatemaster.com

29

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility

Rev.: 12/17/14

®

22 (TY) Series

Typical Wiring Diagram - Three Phase Units

30

ClimateMaster Water-Source Heat Pumps

THE SMART SOLUTION FOR ENERGY EFFICIENCY

DXM2 Control - For detailed control information, see
DXM2 Application, Operation and Maintenance (AOM)
manual (part # 97B0003N15).

Field Selectable Inputs - Test mode: Test mode allows
the service technician to check the operation of the
control in a timely manner. By momentarily pressing the
TEST pushbutton, the DXM2 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
display will change, either fl ashing rapidly to indicate the
control is in the test mode, or displaying a numeric fl ash
code representing the current airfl ow if an ECM blower
is connected and operating. For diagnostic ease at
conventional thermostats, the alarm relay will also cycle
during test mode. The alarm relay will cycle on and off
similar to the fault LED to indicate a code representing
the last fault, at the thermostat. Test mode can be exited
by pressing the TEST pushbutton for 3 seconds.

Retry Mode – If the control is attempting a retry of a
fault, the fault LED will slow fl ash (slow fl ash = one fl ash
every 2 seconds) to indicate the control is in the process
of retrying.

Field Confi guration Options – Note: In the following
fi eld confi guration options, jumper wires should be
clipped ONLY when power is removed from the DXM2
control.

Water coil low temperature limit setting: Jumper 3 (JW3­LT1 Low Temp) provides fi eld selection of temperature
limit setting for LT1 of 30°F or 10°F [-1°F or -12°C]
(refrigerant temperature).

Not Clipped = 30°F [-1°C]. Clipped = 10°F [-12°C].

Alarm relay setting: Jumper 1 (JW1-AL2 Dry) provides
fi eld 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 fi eld confi guration
options, DIP switches should only be changed when
power is removed from the DXM2 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 fi eld 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 DXM2 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.

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 - Dehumidifi cation mode: DIP 1.5 provides
selection of normal or dehumidifi cation fan mode. In
dehumidifi cation 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 = Dehumidifi cation 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 LT1 is above the
temperature specifi ed 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.

climatemaster.com

Tranquility

®

22 (TY) Series

Rev.: 12/17/14

DXM2 Controls

31

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

(

Tranquility

Rev.: 12/17/14

®

22 (TY) Series

DXM2 Controls

On = normal. Off = Boilerless operation.

1.8 – Boilerless changeover temperature: DIP 1.8
provides selection of boilerless changeover temperature
setpoint. Note that the LT1 thermistor is sensing
refrigerant temperature between the coaxial heat
exchanger and the expansion device (TXV). 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) – A combination of dip switches

2.1, 2.2, 2.3, and 2.4, 2.5, 2.6 deliver confi guration of
ACC1 and ACC2 relay options respectively. See Table 7a
for description and functionality.

2.7 – Auto dehumidifi cation fan mode or high fan mode:
DIP 2.7 provides selection of auto dehumidifi cation fan
mode or high fan mode. In auto dehumidifi cation 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 dehumidifi cation mode (default). 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 7a: 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

SSV[OLY+07JVTIPUH[PVUZHYLPU]HSPK

DIP Package #3 (S3)

– DIP Package #3 has 4 switches and provides the
following setup and operating selections:

3.1 – Communications confi guration: DIP 3.1 provides
selection of the DXM2 operation in a communicating
system. The DXM2 may operate as the Master of certain
network confi gurations. In most confi gurations the
DXM2 will operate as a master device.

On = Communicating Master device (default). Off =
communicating Slave device.

3.2 – HWG Test Mode: DIP 3.2 provides forced operation
of the HWG pump output, activating the HWG pump
output for up to fi ve minutes.

On = HWG test mode. Off = Normal HWG mode
(default).

3.3 – HWG Temperature: DIP 3.3 provides the selection
of the HWG operating setpoint.

On = 150°F [66°C]. Off = 125°F [52°C] (default).

3.4 – HWG Status: DIP 3.4 provides HWG operation
control.

On = HWG mode enabled. Off = HWG mode disabled
(default).

 CAUTION! 

CAUTION! Do not restart units without inspection and
remedy of faulting condition. Equipment damage may occur.

32

ClimateMaster Water-Source Heat Pumps

THE SMART SOLUTION FOR ENERGY EFFICIENCY

Table 7b: LED and Alarm Relay Output Table

DMX2 CONTROLLER FAULT CODES

DMX2 Fault and Status LED Operation

with Test Mode Not Active

DXM2 Is Non-Functional Off Off Open

Normal Operation - No Active Communications On On Open

Normal Operation - With Active Communications Very Slow Flash ON Open

Control Is Currently In Fault Retry Mode Slow Flash - Open

Control Is Currently Locked Out Fast Flash - Closed

Control Is Currently In An Over/ Under Voltage Condition Slow Flash - Open (Closed After 15 min)

Hot Water Mode Active - Slow Flash Open

(NSB) Night Setback Condition Recognized - Flashing Code 2 -

(ESD) Emergency Shutdown Condition Recognized - Flashing Code 3 -

Invalid Thermostat Input Combination - Flashing Code 4 -

High Hot Water Temperature Lockout Active - Flashing Code 5 -

Hot Water Mode Sensor Fault Active - Flashing Code 6 -

DMX2 Fault LED and Status Operation

with Test Mode Active

No Fault Since Power Up In Memory Flashing Code 1 - Cycling Code 1

High Pressure Fault In Memory Flashing Code 2 - Cycling Code 2

Low Pressure Fault In Memory Flashing Code 3 - Cycling Code 3
Low Temperature Protection 1 In Fault Memory Flashing Code 4 - Cycling Code 4
Low Temperature Protection 2 In Fault Memory Flashing Code 5 - Cycling Code 5

Condensate Overfl ow Fault In Memory Flashing Code 6 - Cycling Code 6

Over/Under Voltage Shutdown In Memory Flashing Code 7 - Cycling Code 7

UPS Warning In Memory Flashing Code 8 - Cycling Code 8

UPT Fault In Memory Flashing Code 9 - Cycling Code 9

ECM Air Flow Fault In Memory Flashing Code 10 - Cycling Code 10

Test Mode Active With No ECM Connected Or Operating - Fast Flash -

Test Mode Active With ECM Operating - Flashing ECM Airfl ow -

Fault LED

(Red)

Fault LED

(Red)

Tranquility

Status LED

(Green)

Status LED

(Green)

®

22 (TY) Series

DXM2 Controls

Alarm Relay

Alarm Relay

Rev.: 12/17/14

- Fast Flash = 2 fl ashes every 1 second.

- Slow Flash = 1 fl ash every 2 seconds.

- Very Slow Flash = 1 fl ash every 5 seconds.

- Numeric Codes = On pulse 1/3 second; Off pulse 1/3 second followed by a 10 second delay.

- ECM Airfl ow = 1 fl ash per 100 CFM; On pulse 1/3 second followed by a 10 second delay.

- Alarm Relay Open = alarm signal off; Alarm Relay Closed = alarm signal on.

climatemaster.com

33

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility

Rev.: 12/17/14

®

22 (TY) Series

DXM2 Layout and Connections

Service tool

connection

C

Conventional

stat connection

Cabinet

temperature

sensor
(with variable
speed pump)

Communications

and HWG

Settings

Accessory

relays refer

to DXM2 AOM

for configuration

P1

Y1
Y2

W
O
G
R
C

AL1

P2

AL2

R

NSB

C

ESD

OVR

H
A

P3

R

NO1

NC1

COM1

NO2
NC2

COM2

R

COH
COM

Alarm
Relay

R

JW1

Acc1

Relay

sU yrotcaF

e

Acc2

Relay

Communicating

stat connection

Gnd

B-

A+ 24V

P5

Fault

Status

Off On

1 2 3 4

S3

Off On

1 2 3 4 5 6 7 8

S1

P11

T1

Gnd

AO2

P4

(240Vac)

N.O.

Com

Fan Enable

Test

Micro

U1

Off On

S2

A0-1 A0-2

JW3

1 2 3 4 5 6 7 8

CCH
Relay

P10

T2 T2 T3 T3 T4 T4

(240Vac)

Fan Speed

P12

RV

Relay

Comp
Relay

P9

T5

T5

N.C.
N.O.

12

T6 T6

1

1

4

P8

12V

IN
OUT
Gnd

NC

HP
HP

LP

LP

LT1
LT1

LT2
LT2

RV
RV
CO
CO

P7

24Vdc

EH1
EH2

P6

CCG

CC

Test Button
to Speed up
Time Delays

ECM Motor
Connection

Water Coil
Low Temp
Limit Setting.
JWT-LT1 jumper
should be clipped
for low temp
(antifreeze)
operation

Factory low
voltage molex
connection for

unit harness

Electric heat
connection

Configure
modulating valve
or variable
speed pump

24V to compressor

second-stage solenoid

for Y2/full

load capacity

34

ClimateMaster Water-Source Heat Pumps

Variable

speed pump

water temp

Entering

water temp

air temp

Leaving

Leaving

Entering Hot water

Compressor Discharge

Temperature

Use 4 mounting screws

temperature

#6 sheet metal screw
1” long

THE SMART SOLUTION FOR ENERGY EFFICIENCY

DXM2 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 fi rst 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.

Table 7c: Unit Operation

Conventional

T-stat signal

(Non-Communicating)

G Fan only

G, Y1 Stage 1 heating

G, Y1, Y2 Stage 2 heating

G, Y1, Y2, W Stage 3 heating

G, W Emergency heat

G, Y1, O Stage 1 cooling

G, Y1, Y2, O Stage 2 cooling

1

Stage 1 = 1st stage compressor, 1st stage fan operation

Stage 2 = 2nd stage compressor, 2nd stage fan operation
Stage 3 = 2nd stage compressor, auxiliary electric heat, 3rd stage fan operation

2

Stage 1 = 1st stage compressor, 1st stage fan operation, reversing valve

Stage 2 = 2nd stage compressor, 2nd stage fan operation, reversing valve

Unit

ECM fan

1

1

1

2

2

Tranquility

Figure 26b: Test Mode Button

Gnd

B-

Pust test button to enter Test
Mode and speed-up timing and
delays for 20 minutes.

A+ 24V

P5

P4

(240Vac)

Com

Fan Enable

Test

®

22 (TY) Series

Rev.: 12/17/14

DXM2 Controls

(240Vac)

N.O.

N.C.
N.O.

Fan Speed

P12

P8

12V

IN
OUT
Gnd

NC

climatemaster.com

35

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility

®

22 (TY) Series

Rev.: 12/17/14

DXM2 Controls

Table 8: Nominal Resistance at Various Temperatures

Temp (ºC) Temp (ºF)

-17.8 0.0 85.34 55 131.0 2.99

-17.5 0.5 84.00 56 132.8 2.88

-16.9 1.5 81.38 57 134.6 2.77

-12 10.4 61.70 58 136.4 2.67

-11 12.2 58.40 59 138.2 2.58

-10 14.0 55.30 60 140.0 2.49

-9 15.8 52.38 61 141.8 2.40

-8 17.6 49.64 62 143.6 2.32

-7 19.4 47.05 63 145.4 2.23

-6 21.2 44.61 64 147.2 2.16

-5 23.0 42.32 65 149.0 2.08

-4 24.8 40.15 66 150.8 2.01

-3 26.6 38.11 67 152.6 1.94

-2 28.4 36.18 68 154.4 1.88

-1 30.2 34.37 69 156.2 1.81
0 32.0 32.65 70 158.0 1.75
1 33.8 31.03 71 159.8 1.69
2 35.6 29.50 72 161.6 1.64
3 37.4 28.05 73 163.4 1.58
4 39.2 26.69 74 165.2 1.53
5 41.0 25.39 75 167.0 1.48
6 42.8 24.17 76 168.8 1.43
7 44.6 23.02 77 170.6 1.39
8 46.4 21.92 78 172.4 1.34
9 48.2 20.88 79 174.2 1.30

10 50.0 19.90 80 176.0 1.26
11 51.8 18.97 81 177.8 1.22
12 53.6 18.09 82 179.6 1.18
13 55.4 17.26 83 181.4 1.14
14 57.2 16.46 84 183.2 1.10
15 59.0 15.71 85 185.0 1.07
16 60.8 15.00 86 186.8 1.04
17 62.6 14.32 87 188.6 1.01
18 64.4 13.68 88 190.4 0.97
19 66.2 13.07 89 192.2 0.94
20 68.0 12.49 90 194.0 0.92
21 69.8 11.94 91 195.8 0.89
22 71.6 11.42 92 197.6 0.86
23 73.4 10.92 93 199.4 0.84
24 75.2 10.45 94 201.2 0.81
25 77.0 10.00 95 203.0 0.79
26 78.8 9.57 96 204.8 0.76
27 80.6 9.16 97 206.6 0.74
28 82.4 8.78 98 208.4 0.72
29 84.2 8.41 99 210.2 0.70
30 86.0 8.06 100 212.0 0.68
31 87.8 7.72 101 213.8 0.66
32 89.6 7.40 102 215.6 0.64
33 91.4 7.10 103 217.4 0.62
34 93.2 6.81 104 219.2 0.60
35 95.0 6.53 105 221.0 0.59
36 96.8 6.27 106 222.8 0.57
37 98.6 6.01 107 224.6 0.55
38 100.4 5.77 108 226.4 0.54
39 102.2 5.54 109 228.2 0.52
40 104.0 5.33 110 230.0 0.51
41 105.8 5.12 111 231.8 0.50
42 107.6 4.92 112 233.6 0.48
43 109.4 4.72 113 235.4 0.47
44 111.2 4.54 114 237.2 0.46
45 113.0 4.37 115 239.0 0.44
46 114.8 4.20 116 240.8 0.43
47 116.6 4.04 117 242.6 0.42
48 118.4 3.89 118 244.4 0.41
49 120.2 3.74 119 246.2 0.40
50 122.0 3.60 120 248.0 0.39
51 123.8 3.47 121 249.8 0.38
52 125.6 3.34 122 251.6 0.37
53 127.4 3.22 123 253.4 0.36
54 129.2 3.10

Resistance

(kOhm)

Temp (ºC) Temp (ºF)

Resistance

(kOhm)

DXM2 Thermostat Details
Thermostat Compatibility – Most heat pump and heat/

cool thermostats can be used with the DXM2, as well as
ClimateMaster communicating thermostats (ATC32).

Anticipation Leakage Current – Maximum leakage
current for “Y1” is 50 mA and for “W” is 20mA. Triacs
can be used if leakage current is less than above.
Thermostats with anticipators can be used if anticipation
current is less than that specifi ed above.

Thermostat Signals -

• “Y1, Y2, W1, O” and “G” have a 1 second recognition
time when being activated or being removed.

• “R” and “C” are from the transformer.

• “AL1” and “AL2” originate from the Alarm Relay.

• “A+” and “B-” are for a communicating thermostat.

36

ClimateMaster Water-Source Heat Pumps

THE SMART SOLUTION FOR ENERGY EFFICIENCY

Tranquility

®

22 (TY) Series

Rev.: 12/17/14

Unit Starting and Operating Conditions

Operating Limits

Environment – Units are designed for indoor installation only. Never install units in areas subject to freezing or where
humidity levels could cause cabinet condensation (such as unconditioned spaces subject to 100% outside air).

Power Supply – A voltage variation of +/– 10% of nameplate utilization voltage is acceptable.

Determination of operating limits is dependent primarily upon three factors: 1) return air temperature. 2) water
temperature, and 3) ambient temperature. When any one of these factors is at minimum or maximum levels, the
other two factors should be at normal levels to ensure proper unit operation. Extreme variations in temperature and
humidity and/or corrosive water or air will adversely affect unit performance, reliability, and service life. Consult Table
9a for operating limits.

Table 9a: Operating Limits

Operating Limits

Air Limits

Min. ambient air, DB

Rated ambient, DB

Max. ambient air, DB

Min. entering air, DB/WB

Rated entering air, DB/WB

Max. entering air, DB/WB

Water Limits

Min. entering water

Normal entering water

Max. entering water

Normal Water Flow

Cooling Heating

45ºF [7ºC]

80.6ºF [27ºC]

130ºF [54.4ºC]

65/45ºF [18/7ºC]

80.6/66.2ºF [27/19ºC]
100/75ºF [38/24ºC]

30ºF [-1.1ºC]

50 – 110ºF [10 – 43.3ºC]

120ºF [48.9ºC]

[1.6 to 3.2 l/m per kW]

TY

39ºF [4ºC]
68ºF [20ºC]
85ºF [29ºC]
50ºF [10ºC]
68ºF [20ºC]
80ºF [27ºC]

20ºF [-6.7ºC]

30-80ºF [-1.1 – 26.7ºC]

90ºF [32.2ºC]

1.5 to 3.0 gpm / ton

Operating Limits

Environment – Units are designed for indoor installation only. Never install units in areas subject to freezing or where
humidity levels could cause cabinet condensation (such as unconditioned spaces subject to 100% outside air).

Power Supply – A voltage variation of +/– 10% of nameplate utilization voltage is acceptable.

Determination of operating limits is dependent primarily upon three factors: 1) return air temperature. 2) water
temperature, and 3) ambient temperature. When any one of these factors is at minimum or maximum levels, the
other two factors should be at normal levels to ensure proper unit operation. Extreme variations in temperature and
humidity and/or corrosive water or air will adversely affect unit performance, reliability, and service life. Consult Table
9a for operating limits.

Table 9b: Starting Limits

Operating Limits

Air Limits

Min. ambient air, DB

Rated ambient, DB

Max. ambient air, DB

Min. entering air, DB/WB

Rated entering air, DB/WB

Max. entering air, DB/WB

Water Limits

Min. entering water

Normal entering water

Max. entering water

Normal Water Flow

Cooling Heating

45ºF [7ºC]

80.6ºF [27ºC]

130ºF [54.4ºC]

60/45ºF [16/7ºC]

80.6/66.2ºF [27/19ºC]
100/75ºF [38/24ºC]

30ºF [-1.1ºC]

50 – 110ºF [10 – 43.3ºC]

120ºF [48.9ºC]

TY

39ºF [4ºC]
68ºF [20ºC]
85ºF [29ºC]
50ºF [10ºC]
68ºF [20ºC]
80ºF [27ºC]

20ºF [-6.7ºC]

30-80ºF [-1.1 – 26.7ºC]

90ºF [32.2ºC]

1.5 to 3.0 gpm / ton

[1.6 to 3.2 l/m per kW]

climatemaster.com

37

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility

Rev.: 12/17/14

®

22 (TY) Series

Piping System Cleaning and Flushing

Piping System Cleaning and Flushing - Cleaning and

fl ushing the WLHP piping system is the single most
important step to ensure proper start-up and continued
effi cient operation of the system.

Follow the instructions below to properly clean and fl ush
the system:

1. Ensure that electrical power to the unit is
disconnected.

2. Install the system with the supply hose connected
directly to the return riser valve. Use a single length of
fl exible hose.

3. Open all air vents. Fill the system with water. DO NOT
allow system to overfl ow. Bleed all air from the system.
Pressurize and check the system for leaks and repair as
appropriate.

4. Verify that all strainers are in place (ClimateMaster
recommends a strainer with a #20 stainless steel
wire mesh). Start the pumps, and systematically
check each vent to ensure that all air is bled from the
system.

5. Verify that make-up water is available. Adjust make-up
water as required to replace the air which was bled
from the system. Check and adjust the water/air level
in the expansion tank.

6. Set the boiler to raise the loop temperature to
approximately 86°F [30°C]. Open a drain at the
lowest point in the system. Adjust the make-up water
replacement rate to equal the rate of bleed.

7. Refi ll the system and add trisodium phosphate in
a proportion of approximately one pound per 150
gallons (.8 kg per 1000 l) of water (or other equivalent
approved cleaning agent). Reset the boiler to raise
the loop temperature to 100°F [38°C]. Circulate the
solution for a minimum of 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. When the cleaning process is complete, remove the
short-circuited hoses. Reconnect the hoses to the
proper supply, and return the connections to each of
the units. Refi ll the system and bleed off all air.

9. Test the system pH with litmus paper. The system
water should be in the range of pH 6.0 - 8.5 (see
table 3). Add chemicals, as appropriate to maintain
neutral pH levels.

10. When the system is successfully cleaned, fl ushed,

refi lled and bled, check the main system panels,
safety cutouts and alarms. Set the controls to properly
maintain loop temperatures.

DO NOT use “Stop Leak” or similar chemical agent in
this system. Addition of chemicals of this type to the
loop water will foul the heat exchanger and inhibit unit
operation.

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 fi nishing 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.

38

ClimateMaster Water-Source Heat Pumps

THE SMART SOLUTION FOR ENERGY EFFICIENCY

 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 CPVC piping, may cause failure of
the PVC/CPVC. PVC/CPVC piping should never be used
as supply or return water piping with water source heat
pump products containing HFC-410A as system failures and
property damage may result.

Unit and System Checkout

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.

 Entering water and air: Ensure that entering water

and air temperatures are within operating limits of
Table 9a-b.

 Low water temperature cutout: Verify that low water

temperature cut-out on the DXM2 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 start­up. 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 fl ow balancing: Record inlet and outlet water

temperatures for each heat pump upon startup.
This check can eliminate nuisance trip outs and
high velocity water fl ow that could erode heat
exchangers.

 Unit air coil and fi lters: Ensure that fi lter is clean and

accessible. Clean air coil of all manufacturing oils.

 Unit controls: Verify that DXM2 fi eld selection

options are properly set.

Tranquility

®

22 (TY) Series

Rev.: 12/17/14

Unit and System Checkout

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 fi ttings (see table 3).

 System fl ushing: Verify that all hoses are connected

end to end when fl ushing 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

setpoints 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 setpoints 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 fl ow 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 fi lled 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.

climatemaster.com

39

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility

Rev.: 12/17/14

®

22 (TY) Series

Unit Start-Up Procedure

Unit Start-up Procedure

1. Turn the thermostat fan position to “ON”. Blower
should start.

2. Balance air fl ow 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 9b. 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 fi ve minute time delay in

the control circuit that can be eliminated by
pushing the test button on the DXM2 control
board.

c. Verify that the compressor is on and that the water

fl ow rate is correct by measuring pressure drop
through the heat exchanger using the P/T plugs
and comparing to table 10.

d. Check the elevation and cleanliness of the

condensate lines. Dripping may be a sign of a
blocked line. Check that the condensate trap is
fi lled to provide a water seal.

e. Refer to table 12. Check the temperature of both

entering and leaving water. If temperature is within
range, proceed with the test. Verify correct water
fl ow by comparing unit pressure drop across the
heat exchanger versus the data in table 10. Heat
of rejection (HR) can be calculated and compared
to submittal data capacity pages. The formula for
HR for systems with water is as follows:
HR (Btuh) = TD x GPM x 500,where TD is the
temperature difference between the entering and
leaving water, and GPM is the fl ow rate in U.S.
GPM, determined by comparing the pressure drop
across the heat exchanger to table 10. In S-I units,
the formula is as follows: HR (kW) = TD x l/s x 4.18.

f. Check air temperature drop across the air coil when

compressor is operating. Air temperature drop
should be between 15

g. Turn thermostat to “OFF” position. A hissing noise

indicates proper functioning of the reversing valve.

40

°F and 25°F [

ClimateMaster Water-Source Heat Pumps

6. Allow fi ve (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.

d. Refer to table 12. 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 and compare to table 11. Verify correct
water fl ow by comparing unit pressure drop across
the heat exchanger versus the data in table 10.
Heat of extraction (HE) can be calculated and
compared to submittal data capacity pages. The
formula for HE for systems with water is as follows:

HE (kW) = TD xGPM x 500, where TD is the

temperature difference between the entering
and leaving water, and l/s is the fl ow rate in U.S.
GPM, determined by comparing the pressure drop
across the heat exchanger to table 10. In S-I units,
the formula is as follows: HE (kW) = TD x l/s x 4.18.

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. 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.

8. When testing is complete, set system to maintain
desired comfort level.

Note: If performance during any mode appears
abnormal, refer to the DXM2 section 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.

8°C and 14°C].

THE SMART SOLUTION FOR ENERGY EFFICIENCY

Table 10: TY Coax Water Pressure Drop

Model GPM

2.5

024

Rev B

030

036

Rev B

042

048

060

Rev B

* Based on 15% methanol antifreeze solution

3.0

3.8

4.5

6.0

3.0

3.8

4.5

6.0

7.5

4.0

6.0

6.8

8.0

9.0

3.8

5.3

7.5

7.9

10.5

4.5

6.0

6.8

9.0

12.0

6.0

7.5

9.0

12.0

15.0

30°F* 50°F 70°F 90°F

0.8

1.2

1.8

2.7

3.9

1.7

2.3

2.7

3.8

5.1

0.6

1.8

2.3

3.2

4.0

1.7

2.7

4.5

4.8

7.4

1.4

2.0

2.5

4.0

6.5

1.2

2.1

3.1

5.4

8.1

Pressure Drop (psi)

0.3

0.6

1.1

1.6

2.8

0.9

1.2

1.6

2.4

3.5

0.1

1.0

1.5

2.2

2.9

1.0

1.8

3.1

3.4

5.4

1.1

1.7

2.1

3.4

5.5

0.9

1.7

2.5

4.6

7.0

0.2

0.5

0.9

1.2

2.2

0.8

1.1

1.4

2.2

3.1

0.1

0.7

1.1

1.8

2.4

0.9

1.6

2.8

3.1

4.9

0.9

1.4

1.8

3.0

4.9

0.8

1.5

2.3

4.2

6.4

0.2

0.5

0.8

1.2

2.0

0.8

1.1

1.4

2.1

2.9

0.1

0.7

1.1

1.7

2.3

0.9

1.5

2.6

2.9

4.7

0.8

1.3

1.7

2.7

4.5

0.8

1.4

2.2

3.9

6.1

Tranquility

®

22 (TY) Series

Rev.: 12/17/14

Unit Operating Conditions

 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 fl ow prior to engaging the compressor. Freezing
of the coax or water lines can permanently damage the heat
pump.

Operating Pressure/Temperature tables include 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.

climatemaster.com

41

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility

®

22 (TY) Series

Rev.: 12/17/14

Unit Operating Conditions

Table 11: TY Series Typical Unit Operating Pressures and Temperatures (60Hz – I-P Units)

024 Full Load Cooling - without HWG active Full Load Heating - without HWG active

Entering

Water

Temp °F

*Based on 15% Methanol antifreeze solution

30*

50

70

90

110

Water

Flow

GPM/ton

1.5

2.25
3

1.5

2.25
3

1.5

2.25
3

1.5

2.25
3

1.5

2.25
3

Suction

Pressure

PSIG

127-137
125-135
124-134

132-142
131-141
130-140

140-150
139-149
138-148

144-154
143-153
143-153

Discharge

Pressure

PSIG

244-264
205-225
166-186

327-347
301-321
276-296

457-477
433-453
409-429

530-550
510-530
490-510

Superheat Subcooling

8-12
8-12

10-15

8-12
8-12
8-12

6-11
6-11
6-11

4-10
4-10
4-10

9-14
7-12
5-10

11-16

9-14
7-12

13-18
11-16

9-14

13-18
13-18
11-16

Water

Temp Drop

°F

20.6-22.6

14.5-16.5

8.41-10.41

19.9-21.9

14.0-16.0

8.0-10.0

19.9-21.9

13.2-15.2

7.5-9.5

18.9-20.9

13.0-15.0

7.11-9.11

Air Temp

Drop °F

DB

19-25
19-25
19-25

18-24
18-24
18-24

17-23
17-23
17-23

16-22
16-22
16-22

Suction

Pressure

PSIG

67-77
72-82
77-87

98-108
104-114
111-121

129-139
137-147
145-155

162-172
170-180
178-188

Discharge

Pressure

PSIG

297-317
303-323
309-329

340-360
343-363
346-366

373-393
390-410
401-421

406-426
415-435
423-443

Superheat Subcooling

1-6
3-8
3-8

6-11
6-11

8-12

10-15
11-16
11-16

14-19
14-19
14-19

2-7
5-10
5-10

5-10
5-10
5-10

5-10
5-10
5-10

3-8

3-8

3-8

Water

Temp Drop

°F

8.0-10.0

5.9-7.9

3.8-5.8

11.1-13.1

8.1-10.1

5.2-7.2

14.4-16.4

10.5-12.5

6.5-8.5

17.5-19.5

12.7-14.7

7.9-9.9

Air Temp

Rise °F

DB

18-23
20-25
21-27

24-27
26-31
27-32

30-35
33-40
33-36

36-41
37-41
38-43

030 Full Load Cooling - without HWG active Full Load Heating - without HWG active

Entering

Water

Temp °F

30*

50

70

90

110

Water

Flow

GPM/ton

1.5

2.25
3

1.5

2.25
3

1.5

2.25
3

1.5

2.25
3

1.5

2.25
3

Suction

Pressure

PSIG

122-132
121-131
121-131

122-132
121-131
121-131

133-143
133-143
132-142

137-147
136-146
135-145

Discharge

Pressure

PSIG

240-260
213-233
186-206

316-336
298-318
280-300

438-458
420-440
401-421

507-527
490-510
473-493

Superheat Subcooling

10-15

11-16
11-16

9-14
9-14
9-14

8-13
8-13
8-13

6-11
7-12
7-12

11-16

9-14
7-12

12-17
11-16

9-14

14-19
13-18
11-16

16-21
14-19
13-18

Water

Temp Rise

°F

19.5-21.5

15.0-17.0

10.3-12.3

18.8-20.8

14.3-16.3

9.8-11.8

17.8-19.8

13.5-15.5

9.2-11.2

17.2-19.2

13.0-15.0

8.8-10.8

Air Temp

Drop °F

DB

18-23
19-24
19-24

17-22
17-22
17-22

15-20
15-20
15-20

15-20
15-20
15-20

Suction

Pressure

PSIG

65-75
67-77
72-82

95-105
100-110
105-115

124-134
130-140
137-147

156-166
163-173
170-180

Discharge

Pressure

PSIG

311-331
315-335
319-339

353-373
358-378
362-382

390-410
398-418
405-425

430-450
459-479
448-468

Superheat Subcooling

9-14
9-14
9-14

11-16
11-16
12-17

13-18
14-19
15-20

16-21
17-22
18-23

9-14
9-14
9-14

10-15
10-15
10-15

10-15

9-14
9-14

8-13
8-13
8-13

*Based on 15% Methanol antifreeze solution

036 Full Load Cooling - without HWG active Full Load Heating - without HWG active

Entering

Water

Temp °F

30*

50

70

90

110

Water

Flow

GPM/ton

1.5

2.25
3

1.5

2.25
3

1.5

2.25
3

1.5

2.25
3

1.5

2.25
3

Suction

Pressure

PSIG

123-133
122-132
121-131

128-138
124-134
119-129

135-145
134-144
132-142

139-149
138-148
137-147

Discharge

Pressure

PSIG

244-264
240-260
235-255

328-348
300-320
273-293

453-473
428-448
402-422

525-545
503-523
480-500

Superheat Subcooling

10-15
10-15
11-16

8-13
9-14
9-14

7-12
7-12
8-13

6-11
6-11
6-11

12-17

9-14
7-12

12-17
10-15

9-14

13-18
11-16

9-14

14-19
12-17
10-15

Water

Temp Drop

°F

20.9-22.9

14.3-16.3

7.8-9.8

20.2-22.2

13.8-15.8

7.5-9.5

19.2-21.2

13.1-15.1

7.1-9.1

18.5-20.5

12.7-14.7

6.9-8.9

Air Temp

Drop °F

DB

17-22
17-22
17-22

16-21
16-21
16-21

16-21
15-20
14-19

13-18
13-18
14-19

Suction

Pressure

PSIG

60-70
65-75
70-80

88-98

96-106

105-115
116-126

128-138
139-149

148-158
160-170
173-183

Discharge

Pressure

PSIG

315-335
321-341
327-347

353-373
361-381
370-390

390-410
400-420

411-431

424-444
439-459
453-473

Superheat Subcooling

4-9
5-10
6-11

6-11
8-13
9-14

9-14

11-16

13-18
12-17

14-19
16-21

11-16
11-16
11-16

12-17
12-17
12-17

12-17
10-15
10-15

9-14
9-14
8-13

*Based on 15% Methanol antifreeze solution

Water

Temp Drop

°F

8.0-10.0

6.2-8.2

4.3-6.3

10.5-12.5

8.2-10.2

5.8-7.8

13.5-15.5

10.5-12.5

7.5-9.5

16.5-18.5

12.8-14.8

9.0-11.0

Water

Temp Drop

°F

10.0-12.0

6.7-8.7

3.4-5.4

13.2-15.2

9.0-11.0

4.8-6.8

17.0-19.0

11.6-13.6

6.1-8.1

20.9-22.9

14.2-16.2

7.4-9.4

Air Temp

Rise °F

DB

19-24
20-25
21-26

26-31
26-31
27-32

33-38
33-38
34-39

37-42
39-44
40-45

Air Temp

Rise °F

DB

18-23
19-24
20-25

24-29
25-30
26-31

29-34
31-36
32-37

35-40
37-42
39-44

42

ClimateMaster Water-Source Heat Pumps

THE SMART SOLUTION FOR ENERGY EFFICIENCY

Tranquility

Unit Operating Conditions

042 Full Load Cooling - without HWG active Full Load Heating - without HWG active

Entering

Water

Temp °F

30*

110

*Based on 15% Methanol antifreeze solution

Entering

Water

Temp °F

30*

110

*Based on 15% Methanol antifreeze solution

Water

Flow

GPM/ton

2.25

50

2.25

70

2.25

90

2.25

2.25

1.5

1.5

1.5

1.5

1.5

Suction

Pressure

3

121-131
120-130

3

120-130
127-137

125-135

3

125-135
133-143

132-142

3

132-142
137-147

136-146

3

136-146

PSIG

Discharge

Pressure

PSIG

230-250
200-240
164-184

305-325
290-310
263-283

426-446
406-426
390-410

494-514
477-497
460-480

Superheat Subcooling

10-15
11-16
11-16

8-13
9-13

10-15

7-12
7-12
7-12

5-10

6-11
6-11

10-15

8-13

6-11

10-15

9-14
7-12

11-16

9-14
8-13

11-16
10-15

8-13

Water

Temp Rise

°F

20.5-22.5

15.2-17.2

9.8-11.8

19.8-21.8

14.7-16.7

9.5-11.5
19-21

14-16

9-11

18-20
14-16

9-11

Air Temp

Drop °F DB

22-27
22-27
22-27

20-25
21-26
21-26

19-24
19-24
19-24

18-23
18-23
18-23

Suction

Pressure

PSIG

64-74
67-77
71-81

95-105
100-110
104-114

124-134
131-141
138-148

157-167
164-174
172-182

Discharge

Pressure

PSIG

314-334
317-337
321-341

351-371
356-376
361-381

386-406
390-410
400-420

423-443
432-452
441-461

Superheat Subcooling

6-11
6-11
7-12

8-13
9-14

10-15
11-16

12-17
13-18

13-18
15-20
16-21

9-14
9-14
9-14

9-14
9-14
9-14

8-13
8-13
7-12

5-10
5-10
5-10

048 Full Load Cooling - without HWG active Full Load Heating - without HWG active

Water

Flow

GPM/ton

2.25

50

2.25

70

2.25

90

2.25

2.25

1.5

1.5

1.5

1.5

1.5

Suction

Pressure

PSIG

3

124-134
123-133

3

121-131
129-139

128-138

3

127-137
135-145

134-144

3

132-142
138-148

138-148

3

137-147

Discharge

Pressure

PSIG

250-270
212-232
173-193

334-354
309-329
284-304

470-490
446-466
422-442

548-568
526-546
505-525

Superheat Subcooling

11-16
12-17
13-18

9-14
10-15
10-15

7-12

7-12

8-13

6-11

6-11

6-11

13-18
10-15

7-12

16-21
13-18
10-15

20-25
17-22
15-20

22-27
19-24
17-22

Water

Temp Drop

°F

20.1-22.1

14.8-16.8

9.5-11.5

19.6-21.6

14.4-16.4

9.3-11.3

18.9-20.9

13.8-15.8

8.8-10.8

18.6-20.6

13.6-15.6

8.6-10.6

Air Temp

Drop °F DB

19-24
19-24
19-24

18-23
18-23
18-23

16-21
16-21
16-21

15-20
15-20
15-20

Suction

Pressure

PSIG

61-71
64-74
68-78

88-98

94-104

100-110
117-127

125-135
133-143

150-160
158-168
166-176

Discharge

Pressure

PSIG

290-310
293-313
296-316

319-339
324-344
330-350

349-369
357-377
365-385

384-404
391-411
399-419

Superheat Subcooling

9-14
9-14

10-15
11-16

11-16
12-17

13-18
14-19
15-20

15-20
16-21
17-22

5-10
5-10
5-10

6-11
6-11
6-11

5-10
5-10

4-11

3-8
2-7
2-7

®

22 (TY) Series

Rev.: 12/17/14

Water

Temp Drop

8.0-10.0

6.0-8.0

4.0-6.0

10.7-12.7

8.1-10.1

5.4-7.4

13.8-15.8

10.4-12.4

7.0-9.0

16.8-18.8

12.7-14.7

8.5-10.5

Water

Temp Drop

7.7-9.7

5.7-7.7

3.7-5.7

10.3-12.3

7.8-9.8

5.3-7.3

13.4-15.4

10.2-12.2

6.9-8.9

16.6-18.6

12.6-14.6

8.5-10.5

Air Temp

Rise °F

°F

°F

DB

20-25
20-25
21-26

26-31
27-32
27-32

32-37
33-37
34-39

38-43
40-45
41-46

Air Temp

Rise °F

DB

18-23
18-23
18-23

24-29
25-30
25-30

29-34
30-35
31-36

35-40
36-41
37-42

060 Full Load Cooling - without HWG active Full Load Heating - without HWG active

Entering

Water

Temp °F

30*

110

Water

Flow

GPM/ton

2.25

50

2.25

70

2.25

90

2.25

2.25

1.5

1.5

1.5

1.5

1.5

Suction

Pressure

PSIG

Discharge

Pressure

PSIG

Superheat Subcooling

3

120-130
120-130

3

118-128

124-134
124-134

3

123-133
130-140

129-139

3

129-139
133-143

132-142

3

132-142

225-245
222-242
220-240

300-320
278-298
256-276

420-440
400-420
390-410

495-515
475-495
454-474

9-14

9-14

9-14

8-13

8-13

8-13

7-12

7-12

7-12

6-11
6-11
6-11

*Based on 15% Methanol antifreeze solution

Table 12: Water Temperature Change Through Heat Exchanger

Water Flow, gpm [l/m]

For Closed Loop: Ground Source or Closed Loop

Systems at 3 gpm per ton [3.2 l/m per kW]

For Open Loop: Ground Water

Systems at 1.5 gpm per ton [1.6 l/m per kW]

13-18
10-15

9-14

14-19
11-16

9-14

16-21
12-17

9-14

16-21
13-18

9-14

Water

Temp Drop

21.8-23.8

14.7-16.7

8.7-10.7

19.9-21.9

14.1-16.1

8.3-10.3

19.0-21.0

13.4-15.4

7.9-9.9

18.5-20.5

13.1-15.1

7.6-9.6

Rise, Cooling

Air Temp

Drop °F DB

°F

20-25
20-25
20-25

19-24
19-24
19-24

17-22
17-22
17-22

16-21
16-21
16-21

Drop, Heating

°F, [°C]

9 - 12

[5 - 6.7]

20 - 26

[11.1 - 14.4]

climatemaster.com

Suction

Pressure

PSIG

64-74
68-78
71-81

94-104
100-110
105-115

122-132
130-140
137-147

155-165
165-175
175-185

°F, [°C]

4 - 8

[2.2 - 4.4]

10 - 17

[5.6 - 9.4]

Discharge

Pressure

PSIG

309-329
313-333
317-337

343-363
350-270
356-376

377-397
386-406
394-414

412-432
423-443
423-443

Superheat Subcooling

7-12
7-12
8-13

9-14
10-15
10-15

11-16
12-17
13-18

14-19
15-20
16-21

10-15
10-15
10-15

12-18
11-16
10-15

9-14
8-13
7-12

6-11
5-10

4-9

Water

Temp Drop

°F

8.4-10.4

6.0-8.0

3.6-5.6

11.3-13.3

8.2-10.2

5.0-8.0

14.2-16.2

10.3-12.3

6.5-8.5

17.2-19.2

12.6-14.6

7.9-9.9

Air Temp

Rise °F

DB

19-24
20-25
20-25

25-30
26-31
26-31

31-36
31-36
33-38

36-41
37-42
39-44

43

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility

Rev.: 12/17/14

®

22 (TY) Series

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 fl owing through the unit,
the less chance for scaling. Therefore, 1.5 gpm per ton
[1.6 l/m per kW] is recommended as a minimum fl ow.
Minimum fl ow rate for entering water temperatures
below 50°F [10°C] is 2.0 gpm per ton [2.2 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 fl owing
through the unit, the less chance for scaling. However,
fl ow 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.

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 fi lters. Inspect the drain twice a year to avoid the
possibility of plugging and eventual overfl ow.

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 clean 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 fi ns while
cleaning. When the heat pump has experienced less
than 100 operational hours and the coil has not had
suffi cient 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.
CAUTION: Fin edges are sharp.

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 fi lter.

Washable, high effi ciency, electrostatic fi lters, when dirty,
can exhibit a very high pressure drop for the fan motor
and reduce air fl ow, resulting in poor performance. It is
especially important to provide consistent washing of
these fi lters (in the opposite direction of the normal air
fl ow) once per month using a high pressure wash similar
to those found at self-serve car washes.

44

ClimateMaster Water-Source Heat Pumps

Cabinet - Do not allow water to stay in contact with the
cabinet for long periods of time to prevent corrosion of
the cabinet sheet metal. Generally, vertical cabinets are
set up from the fl oor a few inches [7 - 8 cm] to prevent
water from entering the cabinet. The cabinet can be
cleaned using a mild detergent.

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
fl ow rates are at proper levels before servicing the
refrigerant circuit.

THE SMART SOLUTION FOR ENERGY EFFICIENCY

General

If operational diffi culties are encountered, perform
the preliminary checks below before referring to the
troubleshooting charts.

• Verify that the unit is receiving electrical supply power.

• Make sure the fuses in the fused disconnect switches
are intact.

After completing the preliminary checks described
above, inspect for other obvious problems such as
leaking connections, broken or disconnected wires, etc.
If everything appears to be in order, but the unit still fails
to operate properly, refer to the “DXM2 Troubleshooting
Process Flowchart” or “Functional Troubleshooting
Chart.”

DXM2 Board

DXM2 board troubleshooting in general is best
summarized as verifying inputs and outputs. After inputs
and outputs have been verifi ed, board operation is
confi rmed and the problem must be elsewhere. Below
are some general guidelines for troubleshooting the
DXM2 control.

Field Inputs

Conventional thermostat inputs are 24VAC from the
thermostat and can be verifi ed using a voltmeter
between C and Y1, Y2, W, O, G. 24VAC will be present at
the terminal (for example, between “Y1” and “C”) if the
thermostat is sending an input to the DXM2 board.

Proper communications with a thermostat can be verifi ed
using the Fault LED on the DXM2. If the control is NOT
in the Test mode and is NOT currently locked out or
in a retry delay, the Fault LED on the DXM2 will fl ash
very slowly (1 second on, 5 seconds off), if the DXM2 is
properly communicating with the thermostat.

Tranquility

®

22 (TY) Series

Rev.: 12/17/14

Troubleshooting

Outputs

The compressor and reversing valve relays are 24VAC
and can be verifi ed using a voltmeter. For units with
ECM blower motors, the DXM2 controls the motor using
serial communications, and troubleshooting should be
done with a communicating thermostat or diagnostic
tool. The alarm relay can either be 24VAC as shipped or
dry contacts for use with DDC controls by clipping the
JW1 jumper. Electric heat outputs are 24VDC “ground
sinking” and require a voltmeter set for DC to verify
operation. The terminal marked “24VDC” is the 24VDC
supply to the electric heat board; terminal “EH1” is stage
1 electric heat; terminal “EH2” is stage 2 electric heat.
When electric heat is energized (thermostat is sending a
“W” input to the DXM2 controller), there will be 24VDC
between terminal “24VDC” and “EH1” (stage 1 electric
heat) and/or “EH2” (stage 2 electric heat). A reading
of 0VDC between “24VDC” and “EH1” or “EH2” will
indicate that the DXM2 board is NOT sending an output
signal to the electric heat board.

Test Mode

Test mode can be entered for 20 minutes by pressing the
Test pushbutton. The DXM2 board will automatically exit
test mode after 20 minutes.

 WARNING! 

WARNING! HAZARDOUS VOLTAGE! DISCONNECT ALL

ELECTRIC POWER INCLUDING REMOTE DISCONNECTS
BEFORE SERVICING.
Failure to disconnect power before servicing can cause
severe personal injury or death.

Sensor Inputs

All sensor inputs are ‘paired wires’ connecting each
component to the board. Therefore, continuity on
pressure switches, for example can be checked at the
board connector. The thermistor resistance should be
measured with the connector removed so that only the
impedance of the thermistor is measured. If desired, this
reading can be compared to the thermistor resistance
chart shown in Table 8. An ice bath can be used to check
the calibration of the thermistor.

climatemaster.com

45

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility

Rev.: 12/17/14

®

22 (TY) Series

Troubleshooting (Continued)

Advanced Diagnostics

If a communicating thermostat or diagnostic tool
(ACDU) is connected to the DXM2, additional diagnostic
information and troubleshooting capabilities are
available. The current status of all DXM2 inputs can be
verifi ed, including the current temperature readings of all
temperature inputs. With a communicating thermostat
the current status of the inputs can be accessed from
the Service Information menu. In the manual operating
mode, most DXM2 outputs can be directly controlled
for system troubleshooting. With a communicating
thermostat the manual operating mode can be accessed
from the Installer menu. For more detailed information
on the advanced diagnostics of the DXM2, see the
DXM2 Application, Operation and Maintenance (AOM)
manual (part #97B0003N15).

DXM2 Troubleshooting Process Flowchart/Functional
Troubleshooting Chart

The “DXM2 Functional Troubleshooting Process
Flowchart” is a quick overview of how to start diagnosing
a suspected problem, using the fault recognition features
of the DXM2 board. The “Functional Troubleshooting
Chart” on the following page is a more comprehensive
method for identifying a number of malfunctions that
may occur, and is not limited to just the DXM2 controls.
Within the chart are fi ve columns:

• The “Fault” column describes the symptoms.

• Columns 2 and 3 identify in which mode the fault is
likely to occur, heating or cooling.

• The “Possible Cause column” identifies the most likely
sources of the problem.

• The “Solution” column describes what should be done to

correct the problem.

46

ClimateMaster Water-Source Heat Pumps

THE SMART SOLUTION FOR ENERGY EFFICIENCY

 WARNING! 

WARNING! HAZARDOUS VOLTAGE! DISCONNECT

ALL ELECTRIC POWER INCLUDING REMOTE
DISCONNECTS BEFORE SERVICING.
Failure to disconnect power before servicing can cause
severe personal injury or death.

Start

DXM2 Functional
Troubleshooting Flow Chart

See “Unit

short

cycles”

Yes

Did Unit

Attempt to

Start?

Yes

Did Unit

Lockout at

Start-up?

No

Unit Short

Cycles?

No

No

Yes

Tranquility

Check Main

power (see power

problems)

Check fault code on communicating

thermostat (ATC32) or Configuration

and Diagnostics Tool (ACD01)

®

22 (TY) Series

Rev.: 12/17/14

DXM2 Process Flow Chart

No fault

shown

Replace

DXM2

See “Only

Fan Runs”

See “Only

Comp
Runs”

See “Does

not Operate

in Clg”

Yes

Yes

No

Only Fan

Compressor

Runs?

Did unit lockout

after a period of

operation?

Does unit

operate in

cooling?

Unit is OK!

‘See Performance

Troubleshooting’ for

further help

Runs?

No

Only

No

No

Yes

See fault codes in table

on following page

Yes

climatemaster.com

47

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility

®

22 (TY) Series

Rev.: 12/17/14

Functional Troubleshooting

Fault Htg Clg Possible Cause Solution

Main power problems

HP Fault
Code 2

XXGreen Status LED Off

X Reduced or no water fl ow in cooling
X Water Temperature out of range in cooling Bring water temp within design parameters.

X Reduced or no air fl ow in heating

High Pressure

X Air temperature out of range in heating Bring return air temp within design parameters.
XXOvercharged with refrigerant Check superheat/subcooling vs typical operating condition table.
XXBad HP Switch Check switch continuity and operation. Replace.

LP/LOC Fault
Code 3

Low Pressure / Loss of Charge

LT1 Fault
Code 4

Water coil low
temperature limit

LT2 Fault
Code 5

Air coil low
temperature limit

Condensate Fault
Code 6

Over/Under
Voltage Code 7

(Auto resetting)

Unit Performance Sentinel
Code 8

Swapped Thermistor
Code 9

ECM Fault - Code 10

Low Air Coil Pressure Fault
(ClimaDry) Code 11

Low Air Coil Temperature
Fault - (ClimaDry) Code 12

XXInsuffi cient charge Check for refrigerant leaks

X Compressor pump down at start-up Check charge and start-up water fl ow.

X Reduced or no water fl ow in heating

X Inadequate antifreeze level Check antifreeze density with hydrometer.

Improper temperature limit setting (30°F vs

X

10°F [-1°C vs -2°C])

X Water Temperature out of range Bring water temp within design parameters.
XXBad thermistor Check temp and impedance correlation per chart

X Reduced or no air fl ow in cooling

X Air Temperature out of range Too much cold vent air? Bring entering air temp within design parameters.

Improper temperature limit setting (30°F vs

X

10°F [-1°C vs -12°C])

XXBad thermistor Check temp and impedance correlation per chart.
XXBlocked drain Check for blockage and clean drain.
XXImproper trap Check trap dimensions and location ahead of vent.

X Poor drainage

X Moisture on sensor Check for moisture shorting to air coil.
XXPlugged air fi lter Replace air fi lter.
xXRestricted Return Air Flow Find and eliminate restriction. Increase return duct and/or grille size.

XXUnder Voltage

XXOver Voltage
X Heating mode LT2>125°F [52°C] Check for poor air fl ow or overcharged unit.

Cooling Mode LT1>125°F [52°C] OR LT2<

X

40ºF [4ºC])

XXLT1 and LT2 swapped Reverse position of thermistors

XX

Blower does not operate

Blower operating with incorrect airfl ow

X

Reduced or no air fl ow in cooling or ClimaDry

Air temperature out of range Too much cold vent air - bring entering air temp within design parameters
Bad pressure switch Check switch continuity and operation - replace

X

Reduced airfl ow in cooling, ClimaDry, or
constant fan

Air temperature out of range Too much cold vent air - bring entering air temp within design parameters
Bad thermistor Check temp and impedance correlation per chart

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 fl ow adjust to proper fl ow rate.

Check for dirty air fi lter and clean or replace.
Check fan motor operation and airfl ow restrictions.
Dirty Air Coil- construction dust etc.
Too high of external static. Check static vs blower table.

Check pump operation or water valve operation/setting.
Plugged strainer or fi lter. Clean or replace..
Check water fl ow adjust to proper fl ow rate.

Clip JW3 jumper for antifreeze (10°F [-12°C]) use.

Check for dirty air fi lter and clean or replace.
Check fan motor operation and airfl ow restrictions.
Too high of external static. Check static vs blower table.

Normal airside applications will require 30°F [-1°C] only.

Check for piping slope away from unit.
Check slope of unit toward outlet.
Poor venting. Check vent location.

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 water fl ow, or air fl ow.

Check blower line voltage
Check blower low voltage wiring
Wrong unit size selection
Wrong unit family selection
Wrong motor size
Incorrect blower selection
Check for dirty air fi lter and clean or replace
Check fan motor operation and airfl ow restrictions
Too high of external static - check static vs blower table

Check for dirty air fi lter and clean or replace
Check fan motor operation and airfl ow restrictions
Too high of external static - check static vs blower table

Table Continued on Next Page

48

ClimateMaster Water-Source Heat Pumps

THE SMART SOLUTION FOR ENERGY EFFICIENCY

Fault Htg Clg Possible Cause Solution
ESD - ERV Fault (DXM Only)

Green Status LED Code 3

No Fault Code Shown

Unit Short Cycles

Only Fan Runs

XXERV unit has fault (Rooftop units only) Troubleshoot ERV unit fault

No compressor operation See ‘Only Fan Operates’

XX

Compressor overload Check and replace if necessary
Control board Reset power and check operation

Dirty air fi lter Check and clean air fi lter
Unit in ‘Test Mode’ Reset power or wait 20 minutes for auto exit

XX

Unit selection Unit may be oversized for space - check sizing for actual load of space
Compressor overload Check and replace if necessary
Thermostat position Ensure thermostat set for heating or cooling operation
Unit locked out Check for lockout codes - reset power

XX

Compressor overload Check compressor overload - replace if necessary
Thermostat wiring

Check thermostat wiring at DXM2 - put in Test Mode and jumper Y1 and R to
give call for compressor

Tranquility

®

22 (TY) Series

Rev.: 12/17/14

Functional Troubleshooting (cont.)

climatemaster.com

49

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Symptom Htg Clg Possible Cause Solution

Insufficient Capacity/

X X Dirty filter Replace or clean

Not Cooling or Heating

Rduced or no air flow

Check for dirty air filter and clean or replace

Properly

in heating

Check fan motor operation and airflow restrictions
Too high of external static - check static vs blower table

Reduced or no air flow

Check for dirty air filter and clean or replace

in cooling

Check fan motor operation and airflow restrictions
Too high of external static - check static vs blower table

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 cold Check load, loop sizing, loop backfill, ground moisture

High Head Pressure

X

Reduced or no air flow

Check for dirty air filter and clean or replace

in heating

Check fan motor operation and airflow restrictions

Too high of external static - check static vs blower table

X Reduced or no water flow Check pump operation or valve operation/setting

in cooling

Check water flow adjust to proper flow rate

X Inlet water too hot Check load, loop sizing, loop backfill, ground moisture

X

Air temperature out of range in
heating

Bring return air temp within design parameters

X Scaling in water heat exchanger Perform Scaling check and clean if necessary
X X Unit overcharged Check superheat and subcooling - reweigh in charge
X X Non-condensables insystem Vacuum system and reweigh in charge
X X Restricted metering device Check superheat and subcooling per chart - replace

Low Suction Pressure

X

Reduced water flow

Check pump operation or water valve operation/setting

in heating

Plugged strainer or filter - clean or replace
Check water flow adjust to proper flow rate

X Water temperature out of range Bring water temp within design parameters

X

Reduced air flow

Check for dirty air filter and clean or replace

in cooling

Check fan motor operation and airflow restrictions
Too high of external static - check static vs blower table

X Air temperature out of range

Too much cold vent air - bring entering air temp within
design parameters

X X Insufficient charge Check for refrigerant leaks

Low Dischage Air
Temperature in Heating

X Too high of air flow Check fan motor speed selection and airflow chart
X Poor performance See “Insufficient Capacity”

X

X

S

n

Symptom

g

Clg

e

f

ficient Capacity/

g

operl

y

essur

e

r

essur

e

T

Tranquility

Rev.: 12/17/14

®

22 (TY) Series

Performance Troubleshooting

t

nsu

Not Cooling or Heatin

gh Head Pr

Possible Caus

olutio

Low Suction P

ow Dischage Air
emperature in Heating

50

ClimateMaster Water-Source Heat Pumps

THE SMART SOLUTION FOR ENERGY EFFICIENCY

High Humidity

X Too high of air flow Check fan motor speed selection and airflow chart

X Unit oversized

Recheck loads and sizing check sensible clg load and
heat pump capacity

Only Compressor Runs

X X Thermostat wiring

Check G wiring at heat pump. Jumper G and R for fan
operation.

X X Fan motor relay

Jumper G and R for fan operation. Check for Line voltage
across blower relay contacts.

Check fan power enable relay operation (if present)

X X Fan motor Check for line voltage at motor. Check capacitor

X X Thermostat wiring

Check thermostat wiring at or DXM2. Put in Test Mode
and then jumper Y1 and W1 to R to give call for fan,
compressor and electric heat.

Unit Doesn't Operate in
Cooling

X Reversing Valve

Set for cooling demand and check 24VAC on RV coil.
If RV is stuck, run high pressure up by reducing water flow

and while operating engage and disengage RV coil voltage
to push valve.

X Thermostat setup

X Thermostat wiring

Check O wiring at heat pump. DXM2 requires call for
compressor to get RV coil “Click.”

Modulating Valve
Troubleshooting

X

Improper output setting

Verify the AO-2 jumper is in the 0-10V position

No valve operation

Check voltage to the valve

X

No valve output signal

Check DC voltage between AO2 and GND. Should be O
when valve is off and between 3.3v and 10v when valve
is on.

Replace valve if voltage and control signals are present at
the valve and it does not operate

For DXM2 check for “O” RV setup not “B”.

idity

Only Compr

essor Runs

n

C

n

g

T

Symptom Htg Clg Possible Cause Solution

S

n

e

g

Clg

S

m

ympto

Hum

Unit Doesn't Operate i

ooli

Tranquility

®

22 (TY) Series

Rev.: 12/17/14

Performance Troubleshooting (continued)

t

Possible Caus

olutio

Modulating Valve

roubleshooting

climatemaster.com

51

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility

Rev.: 12/17/14

®

22 (TY) Series

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:

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.

Fan Motor: CFM Settings (ECM)
Temperatures: F or C Antifreeze: %
Pressures: PSIG or kPa Type

Cooling Mode Heating Mode

Entering Fluid Temperature
Leaving Fluid Temperature
Temperature Differential
Return-Air Temperature DB WB DB
Supply-Air Temperature DB WB DB
Temperature Differential

Water Coil Heat Exchanger
(Water Pressure IN)

Water Coil Heat Exchanger
(Water Pressure OUT)

Pressure Differential
Water Flow GPM

Compressor

Amps
Volts
Discharge Line Temperature

Motor

Amps
Volts

Allow unit to run 15 minutes in each mode before taking data.

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.

52

ClimateMaster Water-Source Heat Pumps

THE SMART SOLUTION FOR ENERGY EFFICIENCY

s

Refrigerant Circuit Diagram

+($7,1*&<&/($1$/ <6,6 

&22/,1*&<&/($1$/<6,6 

5HIULJHUDQW7\SH

+)&$

$,5

&2,/

$) $)

(;3$16,21

9$/9 (

$)

)3+($7,1*
/,48,'/,1(

)/$6+

*$6/,1(

$,5

&2,/

$) $)

$)

),/7(5
'5,(5

)3

6(1625

Tranquility

&2$;

$)

$) $)

36, 36,

:$7(5,1 :$7(5287

®

22 (TY) Series

Rev.: 12/17/14

Functional Troubleshooting

36,

$)

+:*

$)

36,

Look up pressure drop in
I.O.M. or spec. catalog to
determine flow rate.

36,

$)

6$7

68&7,21

&2035(6625

',6&+$5*(

6$7

6$7

68&7,21

&2035(6625

$)

),/7(5
'5,(5

)3&/*

/,4/,1(

&2$;

$)

$) $)

36, 36,

:$7(5,1 :$7(5287

',6&+$5*(

+:*

$)

36,

6$7

Look up pressure drop in

9ROWDJHBBBBBBBB

&RPS$PSVBBBBBBB

7RWDO$PSVBBBBBBBB

)3)/$6+
*$6/,1(

(;3$16,21

9$/9 (

$)

27+(56,'(

2)),/75'5

I.O.M. or spec. catalog to
determine flow rate.

+HDWRI([WUDFWLRQ$EVRUSWLRQRU+HDWRI5HMHFWLRQ

________ IORZUDWH GLII IDFWRU  BBBBBBBBBBBBB

6XSHUKHDW

6XEFRROLQJ



8VHIRUZDWHUIRUDQWLIUHH]H

JSP[BBBBBBBBWHPS GHJ)[BBBBBBBBIOXLG

6XFWLRQWHPSHUDWXUH VXFWLRQVDWXUDWLRQWHPS

'LVFKDUJHVDWXUDWLRQWHPS  OLTXLGOLQHWHPS

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.



%WXKU

GHJ)

GHJ)

5HY

climatemaster.com

53

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

CLIMATE MASTER, INC.

LIMITED EXPRESS WARRANTY/ LIMITATION OF REMEDIES AND LIABILITY

It is expressly understood that unless a statement is speciÀ cally identiÀ ed 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.

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.

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 condition-

ing, 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 À rst; (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.

This warranty does not cover and does not apply to: (1) Air À lters, fuses, refrigerant, Á uids, 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 identiÀ cation 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, À re, Á ood, alteration or misapplication of the prod-

uct; (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 insufÀ cient performance as a result of insufÀ cient or incorrect system design or the improper application of CM’s products.

CM is not responsible for: (1) The costs of any Á uids, 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 installa-

tion site to CM or of the return of any part not covered by CM’s Limited Express Warranty.

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 limita-

tion any express warranties or any implied warranties of À tness for particular purpose and merchantability, shall be limited to the duration of the Limited Express Warranty.

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 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, À re, Á ood, 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 LIABIL-

ITY 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.

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 organiza-

tion. If assistance is required in obtaining warranty performance, write or call:

Climate Master, Inc. • Customer Service • 7300 S.W. 44th Street • Oklahoma City, Oklahoma 73179 [phone]

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 speciÀ c legal rights, and you may also have other rights which vary from state to state and from Canadian province to Canadian province.

Please refer to the CM Installation, Operation and Maintenance Manual for operating and maintenance instructions.

*LC083*

Rev.: 11/09 LC083

Tranquility

®

22 (TY) Series

Rev.: 12/17/14

Warranty (U.S. & Canada)

ClimateMaster Water-Source Heat Pumps

54

THE SMART SOLUTION FOR ENERGY EFFICIENCY

Rev.: 10/09

Tranquility

APPLICABLE LAW, THIS REMEDY IS THE SOLE AND EXCLUSIVE REMEDY OF THE CUSTOMER AGAINST CM FOR BREACH OF CONTRACT, FOR THE BREACH OF ANY WARRANTY OR FOR CM’S NEGLIGENCE

OR IN STRICT LIABILITY.

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,

À re, Á ood, accident, allocation, shortages of transportation, fuel, materials, or labor, acts of God or any other reason beyond the sole control of CM. TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW AND SUBJECT TO

THE NEXT SENTENCE, CM EXPRESSLY DISCLAIMS AND EXCLUDES ANY LIABILITY FOR LOSS OF PROFITS, LOSS OF BUSINESS OR GOODWILL, CONSEQUENTIAL, INCIDENTAL, SPECIAL, LIQUIDATED, OR

PUNITIVE DAMAGE IN CONTRACT, FOR BREACH OF ANY EXPRESS OR IMPLIED WARRANTY, OR IN TORT, WHETHER FOR CM’s NEGLIGENCE OR AS STRIC

exclude CM’s liability for death, personal injury or fraud.

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 Representative. If assistance is required in obtaining warranty

performance, write or call:

Climate Master, Inc. • Customer Service • 7300 S.W. 44th Street • Oklahoma City, Oklahoma, U.S.A. 73179 • [phone] • FAX [phone]

NOTE: Some countries 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

speciÀ c legal rights, and you may also have other rights which vary from state to state and country to country.

Please refer to the CM Installation, Operation and Maintenance Manual for operating and maintenance instructions.

change for the part or unit which has failed. If after written notice to CM’s factory in Oklahoma City, Oklahoma, U.S.A. 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. TO THE FULLEST EXTENT PERMITTED BY

part not covered by CM’s Limited Express Warranty; or (4) The costs of normal maintenance.

Limitation: This Limited Express Warranty is given in lieu of all other warranties. If, notwithstanding the disclaimers contained herein, it is determined by a court or other qualiÀ ed judicial body that other warranties exist, any such warranty, including

without limitation any express warranty or any implied warranty of À tness for particular purpose and merchantability, shall be limited to the duration of the Limited Express Warranty. This Limited Express Warranty does not exclude any warranty that is

mandatory and that may not be excluded under applicable imperative law.

LIMITATION OF REMEDIES

In the event of a breach of this Limited Express Warranty or any warranty that is mandatory under applicable imperative law, CM will only be obligated at CM’s option to either repair the failed part or unit or to furnish a new or rebuilt part or unit in ex-

of the refrigerant circuit; (8) Mold, fungus or bacteria damages; (9) Products subjected to corrosion or abrasion; (10) Products, parts or components 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; (13) Products which have defects, damage or insufÀ cient performance as a result of insufÀ cient or incorrect system design or the improper

application, installation, or use of CM’s products; or (14) Electricity or fuel costs, or any increases or unrealized savings in same, for any reason.

CM is not responsible for: (1) The cost of any Á uids, refrigerant or other system components, or the 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 cost

of labor, refrigerant, materials or service incurred in diagnosis and removal of the defective part, or in obtaining and replacing the new or repaired part; (3) Transportation costs of the defective part from the installation site to CM or of the return of any

expires at the end of the original warranty period.

This warranty does not cover and does not apply to: (1) Air À lters, fuses, refrigerant, Á uids, 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 identiÀ cation tags or labels have been removed or defaced; (5) Products on which payment by Customer to CM or its distributors or Representatives, or the Customer’s seller is in default;

(6) Products which have defects or damage which result from improper installation, wiring, electrical imbalance characteristics or maintenance; or from parts or components manufactured by others; or are caused by accident, misuse, negligence, abuse,

À re, Á ood, lightning, 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 Á ow rates, or unauthorized opening

®

22 (TY) Series

Rev.: 12/17/14

Warranty (International)

Disclaimer: It is expressly understood that unless a statement is speciÀ cally identiÀ ed as a warranty, statements made by Climate Master, Inc., a Delaware corporation, U. S. A. (“CM”) or its representatives, relating to CM’s products, whether oral, writ-

ten or contained in any sales literature, catalog, this or any other agreement or other materials, 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. EXCEPT AS

SPECIFICALLY SET FORTH HEREIN AND TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, CM MAKES NO WARRANTY AS TO ANY OF CM’S PRODUCTS, AND CM MAKES NO WARRANTY AGAINST

LATENT DEFECTS OR ANY WARRANTY OF MERCHANTABILITY OF THE GOODS OR OF THE FITNESS OF THE GOODS FOR ANY PARTICULAR PURPOSE.

GRANT OF LIMITED EXPRESS WARRANTY

CM warrants CM products purchased and installed outside the United States of America (“U.S.A.”) and Canada to be free from material defects in materials and workmanship under normal use and maintenance as follows: (1) All complete air

conditioning, heating 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 CM’s factory), whichever comes À rst; and, (2) Repair and replacement parts, which are

not supplied under warranty, for ninety (90) days from date of shipment (from factory).

Warranty parts shall be furnished by CM if ordered through an authorized sales representative of CM (“Representative”) within sixty (60) days after the failure of the part. If CM determines that a parts order qualiÀ es for replacement under CM’s

warranty, such parts shall be shipped freight prepaid to the Representative or the ultimate user, as requested by Representative. All duties, taxes and other fees shall be paid by the ultimate user through the Representative.

If requested by CM, all defective parts shall be returned to CM’s factory in Oklahoma City, Oklahoma, U.S.A, freight and duty prepaid, not later than sixty (60) days after the date of the request. If the defective part is not timely returned or if CM

determines the part to not be defective or otherwise not to qualify under CM’s Limited Express Warranty, CM shall invoice Customer the costs for the parts furnished, including freight. The warranty on any part repaired or replaced under warranty

CLIMATE MASTER, INC.

LIMITED EXPRESS WARRANTY /LIMITATION OF REMEDIES AND LIABILITY

(FOR INTERNATIONAL CLASS PRODUCTS)

*LC079*

LC079

T LIABILITY. Nothing in this Agreement is intended to

climatemaster.com

55

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility

®

22 (TY) Series

Rev.: 12/17/14

Revision History

Date: Item: Action:

12/17/14
07/25/14

06/13/14

03/24/14
10/08/13
10/07/13
03/07/13

11/09/12

06/20/12 First Published

Table - Page 6
Page 17, 20, 23, 37

Page 8, 11 & 19
Table 10

Table 7b
Figure 10a: Vertical Condensate Drain

POE Oil Warning

Wiring Diagrams
Nominal Resistance Table
Condensate Drain Connection
Water Quality Table

Updated

Misc. Edits

Change Text - Filter “rack” to “frame”

Updated Water Quality Table

Updated PD for 024, 036, 060

Updated
Updated

Added

Updated

ISO 9001:2008
Certified

Quality: First & Always

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ClimateMaster works continually to improve its products. As a result, the design and specifi cations 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 specifi c
information on the current design and specifi cations. 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 certifi ed.
ClimateMaster is a proud supporter of the Geothermal Exchange Organization - GEO. For more information visit geoexchange.org.

© ClimateMaster, Inc. 2009

56

ClimateMaster Water-Source Heat Pumps

7300 S.W. 44th Street

Oklahoma City, OK 73179

Phone: [phone]

Fax: [phone]

climatemaster.com