Model Nomenclature 3
Unit Physical Data 6
Horizontal Installation 7
Field Conversion of Air Discharge 9
Horizontal Installation 10
Vertical Installation 11
Piping Installation 13
Water-Loop Heat Pump Applications 14
Ground-Loop Heat Pump Applications 15
Ground-Water Heat Pump Applications 17
Water Quality Standards 19
Electrical - Line Voltage 20
Electrical - Power Wiring 22
Electrical - Power & Low Voltage Wiring 23
Electrical - Low Voltage Wiring 24
Electrical - Thermostat Wiring 26
Blower Performance Data 27
ECM Blower Control 28
Typical Wiring Diagram - Units with CXM Board
and ECM Fan Motor (Single Phase) 30
Typical Wiring Diagram - Units with
ClimaDry
Typical Wiring Diagram - Units with CXM Board, 32
ECM Fan Motor, and MPC (DDC) CONTROLS
(SINGLE PHASE) 32
CXM Controls 33
DXM Controls 34
Safety Features - CXM and DXM Controls 36
ClimaDry
Unit Starting and Operating Conditions 41
Piping System Cleaning and Flushing 42
Unit and System Checkout 44
Unit Start-Up Procedure 45
ClimaDry
(When Operating in Non-ClimaDry
Unit Operating Conditions 47
Preventive Maintenance 49
Functional Troubleshooting 50
Performance Troubleshooting 51
Start-Up Log Sheet 52
Functional Troubleshooting 53
Warranty (U.S. & Canada) 54
Warranty (International) 55
Revision History 56
Note: Above model nomenclature is a general reference. Consult individual engineering guides for
detailed information.
ClimaDry® II Option Notes:
1. Unit must have DXM control option. 460 volt unit units require a four wire power supply with neutral.
2. ClimaDry® II may not be combined with motorized water valve, internal secondary circulating pump, or automatic
fl ow regulator options.
3. Unit minimum entering air temperature while in the dehumidifi cation, cooling, or continuous fan modes is 70ºF DB/61ºF WB. Operation below this minimum may result in nuisance faults.
4. A thermostat with dehumidifi cation mode or thermostat and separate humidistat/dehumidistat is required for
activation and control of ClimaDry® II.
5. Downfl ow and 575 volt units are not eligible for ClimaDry® II.
climatemaster.com
3
Page 4
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
S
e
P
n
Tranquility
Rev.: 07/18/13
®
30 (TT) 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! The EarthPure® Application and Service Manual
should be read and understood before attempting to service
refrigerant circuits with HFC-410A.
WARNING!
WARNING! To avoid the release of refrigerant into the
atmosphere, the refrigerant circuit of this unit must be
serviced only by technicians who meet local, state, and
federal profi ciency requirements.
torag
re-Installatio
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.
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.
4
Unit Protection - Cover units on the job site with either
the original packaging or an equivalent protective
covering. Cap the open ends of pipes stored on the
job site. In areas where painting, plastering, and/or
spraying has not been completed, all due precautions
must be taken to avoid physical damage to the units and
contamination by foreign material. Physical damage and
contamination may prevent proper start-up and may result
in costly equipment clean-up.
Examine all pipes, fi ttings, and valves before installing
any of the system components. Remove any dirt or debris
found in or on these components.
ClimateMaster Water-Source Heat Pumps
Page 5
THE SMART SOLUTION FOR ENERGY EFFICIENCY
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
®
30 (TT) Series
Rev.: 07/18/13
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.
Notes:
All units have TXV expansion device and 1/2” & 3/4” electrical knockouts.
575 volt motors are two speed.
For units with ClimaDry
®
option add 66lbs (30kg) to weights.
Unit Maximum Water Working Pressure
Options
Base Unit
Internal Secondary Pump (ISP)
®
ClimaDry
Internal Motorized Water Valve (MWV)
Internal Auto Flow Valve
Use the lowest maximum pressure rating when multiple options are combined.
6
Max Pressure PSIG [kPa]
300 [2,068]
145 [999]
145 [999]
300 [2,068]
300 [2,068]
ClimateMaster Water-Source Heat Pumps
Page 7
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
®
30 (TT) Series
Rev.: 07/18/13
Horizontal Installation
Mounting Horizontal Units
Horizontal units have hanger kits pre-installed from the
factory as shown in Figure 1. Figure 3 shows a typical
horizontal unit installation.
Horizontal heat pumps are typically suspended above
a ceiling or within a 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.
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 rack.
Canvas or fl exible connectors should also be used to
minimize vibration between the unit and ductwork.
8
ClimateMaster Water-Source Heat Pumps
Page 9
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
®
30 (TT) Series
Rev.: 07/18/13
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
Page 10
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Condensate Piping
07/18/13
n
Tranquility
Rev.: 07/18/13
.:
®
30 (TT) Series
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.
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.
10
ClimateMaster Water-Source Heat Pumps
Page 11
THE SMART SOLUTION FOR ENERGY EFFICIENCY
n
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 Locatio
Figure 7: V ertical Unit Mounting
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SRO\VW\UHQHLQVXODWLRQERDUG
®
30 (TT) Series
Rev.: 07/18/13
Vertical Installation
1. Install the unit on a piece of rubber, neoprene orother
mounting pad material for sound isolation. The pad
should be at least 3/8” [10mm] to 1/2” [13mm] in
thickness. Extend the pad beyond all four edges of
the unit.
2. Provide adequate clearance for 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 rack.
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
Page 12
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
Rev.: 07/18/13
®
30 (TT) 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
ರ
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.
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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.
Figure 10b: Vertical Internal Condensate Trap
12
ClimateMaster Water-Source Heat Pumps
Page 13
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.
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.
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.
Tranquility
®
30 (TT) Series
Rev.: 07/18/13
Piping Installation
Installer Caution: After making water connections on
units equipped with ClimaDry®, ensure the three union
nuts on the internal three-way water valve are tight.
ClimaDry®-equipped units have a manual air bleed valve
at the top of the reheat coil. This valve must be used to
bleed the air from the reheat coil after fi lling the system,
for the ClimaDry® to operate properly.
WARNING!
WARNING! Polyolester Oil, commonly known as POE oil, is
a synthetic oil used in many refrigeration systems including
those with HFC-410A refrigerant. POE oil, if it ever comes
in contact with PVC or CPVS piping, may cause failure of
the PVC/CPVC. PVC/CPVC piping should never be used
as supply or return water piping with water source heat
pump products containing HFC-410A as system failures and
property damage may result.
CAUTION!
CAUTION! Corrosive system water requires corrosion
resistant fi ttings and hoses, and may require water treatment.
CAUTION!
CAUTION! Do not bend or kink supply lines or hoses.
CAUTION!
CAUTION! Piping must comply with all applicable codes.
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
climatemaster.com
13
Page 14
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
Rev.: 07/18/13
®
30 (TT) 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 on® tape thread sealant is recommended to
minimize internal fouling of the heat exchanger. Do
not over tighten connections and route piping so as
not to interfere with service or maintenance access.
Hose kits are available from ClimateMaster in different
confi gurations as shown in Figure 12 for connection
between the unit and the piping system. Depending
upon selection, hose kits may include shut off valves,
P/T plugs for performance measurement, high pressure
stainless steel braided hose, “Y” type strainer with blow
down valve, and/or “J” type swivel connection. Balancing
valves and an external low pressure drop solenoid valve
for use in variable speed pumping systems may also be
included in the hose kit.
The piping system should be 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.
Figure 12: Typical Water-Loop Application
3/8" [10mm] threaded rods
(by others)
Low Water Temperature Cutout Setting - CXM Control
When antifreeze is selected, the 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
Page 15
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 so that
fl ow can be measured using the pressure drop of the unit
heat exchanger.
Earth loop temperatures can range between 25 and 110°F
[-4 to 43°C]. Flow rates between 2.25 and 3 gpm [2.41 to
3.23 l/m per kW] of cooling capacity is recommended in
these applications.
Tranquility
®
30 (TT) Series
Rev.: 07/18/13
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 - CXM Control
When antifreeze is selected, the LT1 jumper (JW3) should
be clipped to select the low temperature (antifreeze
10.0°F [-12.2°C]) setpoint and avoid nuisance faults (see
“Low Water Temperature Cutout Selection” in this
manual). Note: Low water temperature operation
- Typical open
loop piping is shown in Figure 14. Shut off valves should be
included for ease of servicing. Boiler drains or other valves
should be “tee’d” into the lines to allow acid 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 pressure drop and temperature can be
measured. Supply and return water piping materials should
be limited to copper, PE, or similar material. PVC or CPVC
should never be used as they are incompatible with the
POE oils used in HFC-410A products and piping system
failure and property damage may result.
WARNING!
WARNING! Polyolester Oil, commonly known as POE oil, is
a synthetic oil used in many refrigeration systems including
those with HFC-410A refrigerant. POE oil, if it ever comes
in contact with PVC or CPVS piping, may cause failure of
the PVC/CPVC. PVC/CPVC piping should never be used
as supply or return water piping with water source heat
pump products containing HFC-410A as system failures and
property damage may result.
Water quantity should be plentiful and of good quality.
Consult table 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.
Tranquility
Ground-Water Heat Pump Applications
Water Quality Standards
- Table 3 should be consulted
®
30 (TT) Series
Rev.: 07/18/13
for water quality requirements. Scaling potential should
be assessed using the pH/Calcium hardness method.
If the pH <7.5 and the calcium hardness is less than
100 ppm, scaling potential is low. If this method yields
numbers out of range of those listed, the Ryznar Stability
and Langelier Saturation indecies should be calculated.
Use the appropriate scaling surface temperature for the
application, 150°F [66°C] for direct use (well water/open
loop) and DHW (desuperheater); 90°F [32°F] for indirect
use. A monitoring plan should be implemented in these
probable scaling situations. Other water quality issues
such as iron fouling, corrosion prevention and erosion and
clogging should be referenced in Table 3.
Expansion Tank and Pump
- Use a closed, bladdertype expansion tank to minimize mineral formation due
to air exposure. The expansion tank should be sized to
provide at least one minute continuous run time of the
pump using its drawdown capacity rating to prevent
pump short cycling. Discharge water from the unit is not
contaminated in any manner and can be disposed of in
various ways, depending on local building codes (e.g.
recharge well, storm sewer, drain 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.
Water Control Valve
- Note the placement of the water
control valve in Figure 14. Always maintain water pressure
in the heat exchanger by placing the water control valve(s)
on the discharge line to prevent mineral precipitation
during the off-cycle. Pilot operated slow closing valves are
recommended to reduce water hammer. If water hammer
persists, a mini-expansion tank can be mounted on the
piping to help absorb the excess hammer shock. Ensure
that the total ‘VA’ draw of the valve can be supplied by
the unit transformer. For instance, a slow closing valve
can draw up to 35VA. This can overload smaller 40 or
50 VA transformers depending on the other controls in
the circuit. A typical pilot operated solenoid valve draws
approximately 15VA (see Figure 21). Note the special
wiring diagrams for slow closing valves (Figures 22 & 23).
climatemaster.com
17
Page 18
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
Rev.: 07/18/13
®
30 (TT) 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 pressur e dr op thr ough 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 dischar ge line.
Slightly closing the valve will spread the pressure dr op 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
open loop systems the 30°F [-1.1°C] FP1 setting (factory
setting-water) should be used to avoid freeze damage to
the unit. See “Low Water Temperature Cutout Selection” in
this manual for details on the low limit setting.
- For all
Figure 14: Typical Open Loop/Well Application
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18
ClimateMaster Water-Source Heat Pumps
Page 19
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tranquility
®
30 (TT) 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.
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. When water properties are outside of those
requirements, an external secondary heat exchanger must be used to isolate the heat pump heat exchanger from the unsuitable water. Failure to do so will void the
warranty for the coaxial heat exchanger.
15Application not recommended.
1RGHVLJQ0D[LPXP
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
-
-<20ppmNRNR
-<150 ppmNRNR
<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.: 07/18/13
C
Rev.: 3/22/2012
climatemaster.com
19
Page 20
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
Rev.: 07/18/13
®
30 (TT) 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
for 208 volt. If supply voltage is 230 volt, installer must
rewire transformer. See wire diagram for connections.
- All 208/230 voltage units are factory wired
- 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.
20
ClimateMaster Water-Source Heat Pumps
Page 21
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tranquility
®
30 (TT) Series
Rev.: 07/18/13
Electrical - Line Voltage
Table 4a: Tranquility® 30 (TT) Series Electrical Data (Standard Units)
All TT UnitsStandard TT Units
Model
TT
026
TT
038
TT
049
TT
064
TT
072
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 with ECM motors require a four wire power supply with neutral. ECM motor
is rated 265 vac and is wired between one hot leg and neutral.
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 with ECM motors 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
®
Max
Fuse/HACR
TT Units with Secondary Pump
Pump
FLA
Total
Unit FLA
Min
Circuit
Amp
Max
Fuse/
HACR
climatemaster.com
21
Page 22
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
Rev.: 07/18/13
®
30 (TT) Series
Electrical - Power Wiring
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,
Power Connection -
Line voltage connection is made by
connecting the incoming line voltage wires to the “L” side
of the contractor as shown in Figure 15. Consult electrical
data tables for correct fuse size.
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.
General Line Voltage Wiring
- Be sure the available
power is the same voltage and phase shown on the unit
serial plate. Line and low voltage wiring must be done in
accordance with local codes or the National Electric Code,
whichever is applicable.
Figure 15: Single Phase Line V oltage Field Wiring.
Three phase wiring is similar except that all three
power wires are directly connected to the contactor.
Unit Power Supply
(see electrical table for wire and
breaker size)
Note: 460V units with
ECM motor require
a neutral wire.
22
ClimateMaster Water-Source Heat Pumps
Page 23
THE SMART SOLUTION FOR ENERGY EFFICIENCY
ELECTRICAL - LOW VOLTAGE WIRING
Thermostat Connections - Depending on the unit model
the thermostat will be wired to either the ECM control
board or a terminal block, both are located within the
unit control box. Refer to the unit wiring diagram for
specifi c details.
Figure 16: Low Voltage Field Wiring
Low voltage fi eld wiring for units with ECM fan
Tranquility
®
30 (TT) Series
Rev.: 07/18/13
Electrical - Power & Low Voltage Wiring
Low Water Temperature Cutout Selection - The CXM/
DXM control allows the fi eld selection of low water (or
water-antifreeze solution) temperature limit by clipping
jumper JW3, which changes the sensing temperature
associated with thermistor FP1. Note that the FP1
thermistor is located on the refrigerant line between
the coaxial heat exchanger and expansion device (TXV).
Therefore, FP1 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 FP1 is for systems using water
(30°F [-1.1°C] refrigerant temperature). In low water
temperature (extended range) applications with
antifreeze (most ground loops), jumper JW3 should be
clipped as shown in Figure 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.
climatemaster.com
23
Page 24
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
Rev.: 07/18/13
®
30 (TT) Series
Electrical - Low Voltage Wiring
Figure 17: LT1 Limit Setting
JW3-LT1 jumper should
LT1
LT2
CXM PCB
Accessory Connections
A terminal paralleling the compressor contactor coil
has been provided on the CXM/DXM control. Terminal
“A” is designed to control accessory devices, such as
water valves. Note: This terminal should be used only
with 24 Volt signals and not line voltage. Terminal “A” is
energized with the compressor contactor. See Figure 18
or the specifi c unit wiring diagram for details.
+ DXM board (8 - 12 VA)*24 - 34
Remaing VA for Accessories41 - 51
*Standard transformer for CXM board is 50VA.
Optional DXM board and/or DDC controls
include 75VA transformer.
be clipped for low
temperature operation
Figure 18: Accessory Wiring
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® 30
(TT) two-stage units should be designed with
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 TT049 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.
24
ClimateMaster Water-Source Heat Pumps
Figure 21 illustrates piping for two-stage solenoid valves.
Review fi gures 21-23 for wiring of stage one valve. Stage
two valve should be wired between terminal “Y2” (ECM
board) and terminal “C.” NOTE: When EWT is below
50°F [10°C], 2 gpm per ton (2.6 l/m per kW) is required.
NOTE: Shut-off valves, strainers and
other required components not shown.
To Discharge
climatemaster.com
25
Page 26
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
Rev.: 07/18/13
®
30 (TT) Series
Electrical - Thermostat Wiring
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: Auto-dehumidifi cation Control
Connection to ECM Control
ATP32U04 Thermostat
Compressor
Compressor Stage 2
Dehumidification
Reversing Valve
Fan
24Vac Hot
24Vac Common
Fault LED
Electric Heat
Y1
Y2
DH
O
G
R
C
L
W1
ECM
Y1
Y2
DH
O
G
R
C
AL1
W
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-c 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: No Dehumidifi cation Control.
Connection to ECM Control
ATP32U03 or ATA22U01 Thermostat
Fan
Y1
Y2
O
G
R
C
L
Compressor
Compressor Heating Stage 2
Reversing Valve
24Vac Hot
24Vac Common
Fault LED
ECM
Interface
Board
Y
Y2
O
G
R
C
AL1
Units with CXM or DXM board and ECM fan motor, utilizing
ECM dehumidification mode (w/o ClimaDry option)
Notes:
1) ECM dehumidification mode slows down fan speed in the
cooling mode when dehumidification output from thermostat is
active. Normal heating and cooling fan speeds are not
affected.
2) ECM board DIP switch SW9 must be in dehumid. mode.
Field Wiring
Factory Wiring
Figure 22c: Units with ClimaDry® Reheat
Connection to ECM & DXM Control
ATP32U04 Thermostat
Compressor
Compressor Stage 2
Dehumidification
Reversing Valve
Fan
24Vac Hot
24Vac Common
Fault LED
Electric Heat
Y1
Y2
DH
O
G
R
C
L
W
Terminal
Block
2
1
4
3
7
6
8
5
ECM
Y1
AL1
DXM
Y2
H
O/W2
G
R
C
W
26
ClimateMaster Water-Source Heat Pumps
Page 27
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tranquility
TT Standard Unit - No Reheat
Airfl ow in CFM with wet coil and clean air fi lter
Fan
Motor
(hp)
Tap
Setting
026
038
049
064
072
Max ESP
(in. wg)
0.501/248109504756307404759201060475
0.501/23725850425560660425825950425
0.501/22620730370490570370710820370
0.501/21520610300600690300
0.501/2411201400700870109070011201400700
0.501/231000125063078098063010001250630
0.501/2286010805406708405408601080540
0.501/21730900450730900450
0.7514146017308701140135087015601850870
0.7513130015507801020121078014001650780
0.751211201330670870104067012001430670
0.7511940112056010101200560
0.7514167020501020130016001020186022801020
0.7513150018259201160143092016502050920
0.7512128015807901000123079014301750790
0.75111080132066012001470660
0.7514162021901050127016501050169022301050
0.7513150019509801170152098016002100980
0.7512140018309101100142091014001850910
0.75111320170085012401620850
Model
Factory shipped on Tap Setting 2
During Auxiliary operation (residential units only) the CFM will run at the higher if the heating (delay jumper) or AUX settings
Airfl ow is controlled within +/- 5% up to Max ESP shown with wet coil and standard 1” fi berglass fi lter
Do not select Dehumidifi cation mode if HP CFM is on setting 1
All units AHRI/ISO/ASHRAE 13256-1 rated HP (Cooling) Delay (Heating) CFM Setting 3
Cooling Mode Dehumid ModeHeating Mode
Stg 1Stg 2FanStg 1Stg 2FanStg 1Stg 2Fan
®
30 (TT) Series
Rev.: 07/18/13
Blower Performance Data
Tranquility
®
30 (TT) Series with ClimaDry® Reheat Option - All Tranquility® 30 (TT) units have an ECM fan motor as a
standard feature. The small additional pressure drop of the reheat coil causes the ECM motor to slightly increase RPM
to overcome the added pressure drop, and maintain selected CFM up to the maximum ESP.
Unit minimum entering air temperature while in the dehumidifi cation, cooling, or continuous fan modes is 70ºF DB/61ºF WB. Operation below this minimum may result in nuisance faults.
climatemaster.com
27
Page 28
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
Rev.: 07/18/13
®
30 (TT) Series
ECM Blower Control
The ECM fan is controlled by an interface board that
converts thermostat inputs and fi eld selectable CFM
settings to signals used by the ECM motor controller.
Units manufactured before July 2005 have version I (P/N
69243707). Units manufactured after July 2005 have
version II (P/N 17B0019N01). Fan speeds are selected
with jumpers for version I or via a nine position DIP
switch for version II. To take full advantage of the ECM
motor features, a multi-stage thermostat should be used
(2-stage heat/2-stage cool or 3-stage heat/2-stage cool).
Note: Power must be off to the unit for at least three
seconds before the ECM motor will recognize a speed
change. The motor will recognize a change in the CFM
Adjust or dehumidifi cation mode settings while the
unit is powered.
There are four different airfl ow settings from lowest
airfl ow rate (speed tap 1) to the highest airfl ow rate
(speed tap 4).
The charts below indicate settings for both versions
of the ECM interface board, followed by detailed
information for each setting.
Cooling Settings: The cooling setting determines the
cooling (normal) CFM for all units with ECM motor.
Cooling (normal) setting is used when the unit is not in
dehumidifi cation mode. Tap 1 is the lowest CFM setting,
while tap 4 is the highest CFM setting. To avoid air coil
freeze-up, tap 1 may not be used if the dehumidifi cation
mode is selected. Consult submittal data or specifi cations
catalog for the specifi c unit series and model to correlate
speed tap setting to airfl ow in CFM.
Heati
ng Settings: The heating setting determines the
heating CFM. Tap 1 is the lowest CFM setting, while tap
4 is the highest CFM setting. Consult submittal data or
specifi cations catalog for the specifi c unit series and
model to correlate speed tap setting to airfl ow in CFM.
Auxiliary/Emergency Heat Settings: The auxiliary/
emergency heat setting determines the CFM when
the unit is in auxiliary heat or emergency heat mode.
This setting is used for residential units with internal
electric heat. When auxiliary electric heat is energized
(i.e. compressor and electric heat), the greater of the
auxiliary/emergency or heating setting will be used. A
“G” (fan) signal must be present from the thermostat
for electric heat to operate. Consult the submittal data
or specifi cations catalog for the specifi c unit series and
model to correlate speed tap setting to airfl ow in CFM.
CFM Adjust Settings: The CFM adjust setting allows
four selections. The NORM setting is the factory default
position. The + or – settings adjust the airfl ow by +/-
5%. The +/- settings are used to “fi ne tune” airfl ow
adjustments. The TEST setting runs the ECM motor at
400 cfm/ton, which causes the motor to operate like a
standard PSC motor, and disables the CFM counter.
Dehumidifi cation Mode Settings: The dehumidifi cation
mode setting provides fi eld selection of humidity control.
When operating in the normal mode, the cooling airfl ow
settings are determined by the cooling tap setting above.
When dehumidifi cation is enabled there is a reduction
in airfl ow in cooling to increase the moisture removal of
the heat pump. Consult submittal data or specifi cations
catalog for the specifi c unit series and model to correlate
speed tap to airfl ow in CFM. The dehumidifi cation mode
can be enabled in two ways.
1. Constant Dehumidifi cation Mode: When the
dehumidifi cation mode is selected (via DIP switch
or jumper setting), the ECM motor will operatewith
a multiplier applied to the cooling CFM settings
(approx. 20-25% lower airfl ow). Any time the unit
is running in the cooling mode, it will operate at
the lower airfl ow to improve latent capacity. The
“DEHUM” LED will be illuminated at all times.
Heating airfl ow is not affected Note: Do not select
dehumidifi cation mode if cooling setting is tap 1.
2. Automatic (Humidistat-controlled)
Dehumidifi cation Mode: When the dehumidifi cation
mode is selected (via DIP switch or jumper setting
AND a humidistat is connected to terminal
DH(version II) or HUM (version I), the cooling airfl ow
will only be reduced when the humidistat senses
that additional dehumidifi cation is required. The
DH (or HUM) terminal is reverse logic. Therefore,
a humidistat (not dehumidistat) is required. The
“DEHUM” LED will be illuminated only when the
humidistat is calling for dehumidifi cation mode.
Heating airfl ow is not affected. Note: Do not select
dehumidifi cation mode if cooling setting is tap 1.
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.
28
ClimateMaster Water-Source Heat Pumps
Page 29
THE SMART SOLUTION FOR ENERGY EFFICIENCY
To ‘ESD’ on DXM
To ‘R’ on DXM
ESD Signal
(eldinput)
The ramp down feature may be eliminated during an
ESD (Emergency Shut Down) situation when using a DXM
unit controller. A DPDT relay is required to break the line
voltage to the ECM motor during ESD. This relay can be
wired as shown below to eliminate the ramp down (and
operation) of the ECM blower motor.
Tranquility
ECM Blower Control
®
30 (TT) Series
Rev.: 07/18/13
Table 5: ECM Board Tap Settings
Figure 23: ECM Version II Interface Layout
1/4" Spade
Connections
to CXM or
DXM Board
Thermostat
Connections
Dehumidification
LED
Y1
Y2
G
R
GGGGR
C
TB1
Y2
Y1
G
O
W
C
R
DH
AL1
A
G
A
DEHUM
AL1
Fan Speed Selection DIP Switch
OFF
ON
SW9
SW8
SW7
SW6
SW5
SW4
O
SW3
SW2
SW1
W
CFM
Y
S1
J1
Thermostat
Input LEDs
CFM Counter
1 flash per 100 CFM
ECM Motor
Low Voltage
Connector
climatemaster.com
29
Page 30
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
Rev.: 07/18/13
®
30 (TT) Series
Typical Wiring Diagram - Units with CXM Board and ECM Fan Motor (Single Phase)
30
ClimateMaster Water-Source Heat Pumps
Page 31
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tranquility
®
30 (TT) Series
Rev.: 07/18/13
Typical Wiring Diagram - Units with ClimaDry® (Single Phase)
climatemaster.com
31
Page 32
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
Rev.: 07/18/13
®
30 (TT) Series
Typical Wiring Diagram - Units with CXM Board,
ECM Fan Motor, and MPC (DDC) CONTROLS (SINGLE PHASE)
32
ClimateMaster Water-Source Heat Pumps
Page 33
THE SMART SOLUTION FOR ENERGY EFFICIENCY
CXM Control - For detailed control information, see
CXM Application, Operation and Maintenance (AOM)
manual (part # 97B0003N12).
Field Selectable Inputs - Test mode: Test mode allows
the service technician to check the operation of the
control in a timely manner. By momentarily shorting the
test terminals, the CXM control enters a 20 minute test
mode period in which all time delays are sped up 15
times. Upon entering test mode, the status LED will fl ash
a code representing the last fault. For diagnostic ease at
the thermostat, the alarm relay will also cycle during test
mode. The alarm relay will cycle on and off similar to the
status LED to indicate a code representing the last fault,
at the thermostat. Test mode can be exited by shorting
the test terminals for 3 seconds.
Retry Mode: If the control is attempting a retry of a fault,
the status LED will slow 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 CXM
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].
Air coil low temperature limit setting: Jumper 2 (JW2LT2 Low Temp) provides fi eld selection of temperature
limit setting for LT2 of 30°F or 10°F [-1°F or -12°C]
(refrigerant temperature). Note: This jumper should
only be clipped under extenuating circumstances, as
recommended by the factory.
Not Clipped = 30°F [-1°C]. Clipped = 10°F [-12°C].
Alarm relay setting: Jumper 1 (JW1-AL2 Dry) provides 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 CXM control.
DIP switch 1: Unit Performance Sentinel Disable provides fi eld selection to disable the UPS feature.
On = Enabled. Off = Disabled.
Tranquility
®
30 (TT) Series
Rev.: 07/18/13
CXM Controls
DIP switch 2: Stage 2 Selection - provides selection of
whether compressor has an “on” delay. If set to stage
2, the compressor will have a 3 second delay before
energizing. Also, if set for stage 2, the alarm relay will
NOT cycle during test mode.
On = Stage 1. Off = Stage 2
DIP switch 3: Not Used.
DIP switch 4: DDC Output at EH2 - provides selection for
DDC operation. If set to “DDC Output at EH2,” the EH2
terminal will continuously output the last fault code of
the controller. If set to “EH2 normal,” EH2 will operate as
standard electric heat output.
On = EH2 Normal. Off = DDC Output at EH2.
Note: Some CXM controls only have a 2 position DIP
switch package. If this is the case, this option can be
selected by clipping the jumper which is in position 4
of SW1.
Jumper not clipped = EH2 Normal. Jumper clipped =
DDC Output at EH2.
DIP switch 5: Factory Setting - Normal position is “On.”
Do not change selection unless instructed to do so by
the factory.
Table 6a: LED And Alarm Relay Operations
Description of OperationLEDAlarm
Normal Mode
Normal Mode w/UPS Warning
CXM is non-functional
Fault Retry
Lockout
Over/Under Voltage Shutdown
Test Mode - No Fault in Memory
Test Mode - HP Fault in Memory
Test Mode - LP Fault in Memory
Test Mode - LT1 Fault in Memory
Test Mode - LT2 Fault in Memory
-Flash code 2 = 2 quick fl ashes, 10 second pause, 2 quick fl ashes, 10 second pause, etc.
-On pulse 1/3 second; off pulse 1/3 second
Field Selectable Inputs - Test mode: Test mode allows
the service technician to check the operation of the
control in a timely manner. By momentarily shorting the
test terminals, the DXM control enters a 20 minute test
mode period in which all time delays are sped up 15
times. Upon entering test mode, the status LED will fl ash
a code representing the last fault. For diagnostic ease at
the thermostat, the alarm relay will also cycle during test
mode. The alarm relay will cycle on and off similar to the
status LED to indicate a code representing the last fault,
at the thermostat. Test mode can be exited by shorting
the test terminals for 3 seconds.
Retry mode: If the control is attempting a retry of a fault,
the status LED will slow fl ash (slow fl ash = one fl ash every
2 seconds) to indicate the control is in the process of
retrying.
Field Confi gu r a t i o n O p t i o n s - Note: In the following fi eld confi guration options, jumper wires should be
clipped ONLY when power is removed from the DXM
control.
Water coil low temperature limit setting: Jumper
3 (JW3-LT1 Low Temp) provides fi eld selection of
temperature limit setting for LT1 of 30°F or 10°F [-1°F or
34
ClimateMaster Water-Source Heat Pumps
-12°C] (refrigerant temperature).
Not Clipped = 30°F [-1°C]. Clipped = 10°F [-12°C].
Air coil low temperature limit setting: Jumper 2 (JW2-LT2
Low Temp) provides fi eld selection of temperature limit
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 DXM controls are being used) or with master/
slave applications. In master/slave applications,
each compressor and fan will stage according to
its appropriate DIP 1.2 setting. If set to stage 2, the
compressor will have a 3 second on-delay before
energizing during a Stage 2 demand. Also, if set for stage
2, the alarm relay will NOT cycle during test mode.
On = Stage 1. Off = Stage 2.
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
setting for LT2 of 30°F or 10°F [-1°F or -12°C]
(refrigerant temperature). Note: This jumper
should only be clipped under extenuating
circumstances, as recommended by
ClimateMaster technical services.
Not Clipped = 30°F [-1°C]. Clipped = 10°F
[-12°C].
Alarm relay setting: Jumper 4 (JW4-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).
Low pressure normally open: Jumper 1 (JW1LP norm open) provides fi eld selection for low
pressure input to be normally closed or normally
open.
Page 35
THE SMART SOLUTION FOR ENERGY EFFICIENCY
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.
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) - DIP Package #2 has 8 switches
and provides the following setup selections:
2.1 - Accessory1 relay personality: DIP 2.1 provides
selection of ACC1 relay personality (relay operation/
characteristics). See table 5c for description of
functionality.
2.2 - Accessory1 relay personality: DIP 2.2 provides
selection of ACC 1 relay personality (relay operation/
characteristics). See table 5c for description of
functionality.
selection of ACC 1 relay options. See table 5c for
description of functionality.
2.4 - Accessory2 relay personality: DIP 2.4 provides
selection of ACC 2 relay personality (relay operation/
characteristics). See table5c for description of
functionality.
2.5 - Accessory2 relay personality: DIP 2.5 provides
selection of ACC 2 relay personality (relay operation/
characteristics). See table 5c for description of
functionality.
2.6 - Accessory2 relay personality: DIP 2.6 provides
selection of ACC 2 relay options. See table 5c for
description of 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. 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 6c: Accessory DIP Switch Settings
DIP 2.1DIP 2.2DIP 2.3ACC1 Relay Option
On
Off
On
On
Off
Off
DIP 2.4DIP 2.5DIP 2.6ACC2 Relay Option
On
Off
On
On
All other DIP combinations are invalid
OnOnCycle with fan
OnOnDigital NSB
OffOnWater Valve - slow opening
OnOffOAD
OffOffReheat Option - Humidistat
OnOffReheat Option - Dehumidistat
The safety features below are provided to protect
the compressor, heat exchangers, wiring, and other
components from damage caused by operation outside
of design conditions.
Anti-short cycle protection: The control features a 5
minute anti-short cycle protection for the compressor.
Note: The 5 minute anti-short cycle also occurs at
power up.
Random start: The control features a random start upon
power up of 5-80 seconds.
Fault Retry: In Fault Retry mode, the Status LED begins
slowly fl ashing to signal that the control is trying to
recover from a fault input. The control will stage off the
outputs and then “try again” to satisfy the thermostat
input call. Once the thermostat input call is satisfi ed,
the control will continue on as if no fault occurred. If 3
consecutive faults occur without satisfying the thermostat
input call, the control will go into “lockout” mode. The
last fault causing the lockout will be stored in memory
and can be viewed at the “fault” LED (DXM board) or by
going into test mode (CXM board). Note: LT1/LT2 faults
are factory set at only one try.
Lockout: In lockout mode, the status LED will begin fast
fl ashing. The compressor relay is turned off immediately.
Lockout mode can be “soft” reset by turning off the
thermostat (or satisfying the call). A “soft” reset keeps
the fault in memory but resets the control. A “hard” reset
(disconnecting power to the control) resets the control
and erases fault memory.
Lockout with emergency heat: While in lockout mode,
if W becomes active (CXM), emergency heat mode will
occur. If DXM is confi gured for heat pump thermostat
type (DIP 1.3), emergency heat will become active if O/W2
is energized.
High pressure switch: When the high pressure switch
opens due to high refrigerant pressures, the compressor
relay is de-energized immediately since the high pressure
switch is in series with the compressor contactor coil. The
high pressure fault recognition is immediate (does not
delay for 30 continuous seconds before de-energizing the
compressor).
High pressure lockout code = 2
Example: 2 quick fl ashes, 10 sec pause, 2 quick fl ashes, 10
sec. pause, etc.
Low pressure switch: The low pressur e switch must be open
and remain open for 30 continuous seconds during “on”
cycle to be recognized as a low pressure fault. If the low
pressure switch is open for 30 seconds prior to compressor
power up it will be considered a low pressure (loss of char ge)
fault. The low pressure switch input is bypassed for the initial
120 seconds of a compressor run cycle.
36
ClimateMaster Water-Source Heat Pumps
Low pressure lockout code = 3
Water coil low temperature (LT1): The LT1 thermistor
temperature must be below the selected low
temperature limit setting for 30 continuous seconds
during a compressor run cycle to be recognized as a LT1
fault. The LT1 input is bypassed for the initial 120 seconds
of a compressor run cycle. LT1 is set at the factory for one
try. Therefore, the control will go into lockout mode once
the LT1 fault has occurred.
LT1 lockout code = 4
Air coil low temperature (LT2): The LT2 thermistor
temperature must be below the selected low
temperature limit setting for 30 continuous seconds
during a compressor run cycle to be recognized as a LT2
fault. The LT2 input is bypassed for the initial 60 seconds
of a compressor run cycle. LT2 is set at the factory for one
try. Therefore, the control will go into lockout mode once
the LT2 fault has occurred.
LT2 lockout code = 5
Condensate overfl ow: The condensate overfl ow sensor
must sense overfl ow level for 30 continuous seconds to
be recognized as a CO fault. Condensate overfl ow will be
monitored at all times.
CO lockout code = 6
Over/under voltage shutdown: An over/under voltage
condition exists when the control voltage is outside the
range of 19VAC to 30VAC. Over/under voltage shut
down is a self-resetting safety. If the voltage comes back
within range for at least 0.5 seconds, normal operation
is restored. This is not considered a fault or lockout. If
the CXM/DXM is in over/under voltage shutdown for 15
minutes, the alarm relay will close.
Over/under voltage shut down code = 7
Unit Performance Sentinel-UPS (patent pending): The
UPS feature indicates when the heat pump is operating
ineffi ciently. A UPS condition exists when:
a. In heating mode with compressor energized, LT2 is greater
than 125°F [52°C] for 30 continuous seconds, or:
b. In cooling mode with compressor energized, LT1 is greater
than 125°F [52°C] for 30 continuous seconds, or:
c. In cooling mode with compressor energized, LT2 is less
than 40°F [4.5°C] for 30 continuous seconds.
Page 37
THE SMART SOLUTION FOR ENERGY EFFICIENCY
If a UPS condition occurs, the control will immediately
go to UPS warning. The status LED will remain on as if
the control is in normal mode. Outputs of the control,
excluding LED and alarm relay, will NOT be affected
by UPS. The UPS condition cannot occur during a
compressor off cycle. During UPS warning, the alarm
relay will cycle on and off. The cycle rate will be “on” for
5 seconds, “off” for 25 seconds, “on” for 5 seconds, “off”
for 25 seconds, etc.
UPS warning code = 8
Swapped LT1/LT2 thermistors: During test mode, the
control monitors to see if the FP1 and FP2 thermistors are
in the appropriate places. If the control is in test mode,
the control will lockout with code 9 after 30 seconds if:
a. The compressor is on in the cooling mode and the LT1
sensor is colder than the LT2 sensor, or:
b. The compressor is on in the heating mode and the LT2
sensor is colder than the LT1 sensor.
Swapped LT1/LT2 thermistor code = 9.
ESD (DXM only): The ESD (Emergency Shut Down)
mode can be enabled from an external common signal
to terminal ESD to shut down the unit. The green status
light will fl ash code 3 when the unit is in ESD mode.
ESD mode = code 3 (green “status” LED)
Tranquility
®
30 (TT) Series
Rev.: 07/18/13
Safety Features - CXM and DXM Controls
CXM/DXM Control Start-up Operation
The control will not operate until all inputs and safety
controls are checked for normal conditions. The compressor will have a 5 minute anti-short cycle delay at
power-up. The 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.
Diagnostic Features
The LED on the CXM board advises the technician of the
current status of the CXM control. The LED can display
either the current CXM mode or the last fault in memory
if in test mode. If there is no fault in memory, the LED will
fl ash Code 1 (when in test mode).
The green status LED and red fault LED on the DXM
board advise the technician of the current status of the
DXM control. The status LED will indicate the current
mode that the DXM control is in. The fault LED will
ALWAYS fl ash a code representing the LAST fault in
memory. If there is no fault in memory, the fault LED will
fl ash Code 1. The yellow test LED will turn on when in
test mode. CAUTION: Do not restart units without
inspection and remedy of faulting condition. Damage
may occur.
climatemaster.com
37
Page 38
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
Rev.: 07/18/13
®
30 (TT) Series
ClimaDry® Modulating Reheat Option
ClimaDry® Sequence Of Operation
A heat pump equipped with ClimaDry® can operate in
three modes, cooling, cooling with reheat, and heating. The
cooling/heating modes are like any other ClimateMaster
WSHP. The reversing valve (“O” signal) is energized in
cooling, along with the compressor contactor(s) and
blower relay. In the heating mode the reversing valve
is de-energized. Almost any thermostat will activate
the heat pump in heating or cooling modes. The DXM
microprocessor board, which is standar d with the ClimaDry®
option, will accept either heat pump (Y,O) thermostats or
non-heat pump (Y,W) thermostats.
The reheat mode requires either a separate humidistat/
dehumidistat or a thermostat that has an integrated
dehumidifi cation function for activation. The DXM board is
confi gured to work with either a humidistat or dehumidistat
input to terminal “H” (DIP switch settings for the DXM
board are shown below in table 7). Upon receiving an “H”
input, the DXM board will activate the cooling mode and
engage reheat. Table 8 shows the relationship between
thermostat input signals and unit operation.
There are four operational inputs for single stage units
and six operational inputs for dual stage units:
-Fan Only
-1st Stage Cooling
-2nd Stage Cooling
-1st Stage Heating
-2nd Stage Heating
-Reheat Mode
• Fan Only: A (G) call from the thermostat to the (G
terminal of the DXM control board will bring the unit
on in fan only mode.
• 1st Stage Cooling: A simultaneous call from (G),
(Y1), and (O) to the (G), (Y1), (O/W2) terminals of the
DXM control board will bring the unit on in 1st Stage
Cooling.
• 2nd Stage Cooling: A simultaneous call from (G), (Y1),
(Y2), and (O) to the (G), (Y1), (Y2), and (O/W2)terminals
of the DXM control board will bring the unit on in
2nd Stage Cooling. When the call is satisfi ed at the
thermostat the unit will continue to run in 1st Stage
Cooling until the 1st Stage Cooling call is removed or
satisfi ed, shutting down the unit. Note: Not all units
have two-stage cooling functionality (e.g. GC series
units).
• 1st Stage Heating: A simultaneous call from (G) and
(Y1) to the (G) and (Y1) terminals of the DXM control
board will bring the unit on in 1st Stage Heating.
• 2nd Stage Heating: A simultaneous call from (G), (Y1),
and (Y2) to the (G), (Y1), and (Y2) terminals of the
DXM control board will bring the unit on in 2nd Stage
Heating. When the call is satisfi ed at the thermostat
the unit will continue to run in 1st Stage Heating
until the call is removed or satisfi ed, shutting down
the unit. NOTE: Not all units have two-stage heating
functionality (e.g. GC series units).
• Reheat Mode: A call from the Humidistat/Dehumidistat
to the (H) terminal of the DXM control board will
bring the unit on in Reheat Mode if there is no call
for cooling at the thermostat. When the Humidistat
Dehumidifi cation call is removed or satisfi ed the
unit will shut down. Note: Cooling always overrides
Reheat Mode. In the Cooling mode, the unit cools
and dehumidifi es. If the cooling thermostat is satisfi ed
but there is still a call for dehumidifi cation, the unit will
continue to operate in Reheat Mode.
ClimaDry® Component Functions
The ClimaDry® option consists of the following
components:
• Proportional Controller
• Supply Air Sensor
• Motorized Valve
• Loop Pump
• Hydronic Coil
The Proportional Controller operates on 24 VAC power
supply and automatically adjusts the water valve based
upon the Supply Air Sensor. The Supply Air Sensor
senses supply air temperature at the blower inlet
providing the input signal necessary for the proportional
control to drive the motorized valve during the reheat
mode of operation. The Motorized Valve is a proportional
actuator/three-way valve combination used to divert
the condenser water from the coax to the hydronic
reheat coil during the reheat mode of operation. The
proportional controller sends a signal to the motorized
valve based on the supply air temperature of the supply
air sensor.
38
ClimateMaster Water-Source Heat Pumps
Page 39
THE SMART SOLUTION FOR ENERGY EFFICIENCY
The Loop Pump circulates condenser water through
the hydronic reheat coil during the reheat mode of
operation. In this application, the loop pump is only
energized during the reheat mode of operation. The
Hydronic Coil is utilized during the reheat mode of
operation to reheat the air to the setpoint of the
proportional controller. Condenser water is diverted by
the motorized valve and pumped through the hydronic
coil by the loop pump in proportion to the control
setpoint. The amount of reheating is dependent on
the setpoint and how far from setpoint the supply air
temperature is. The factory setpoint is 70–75°F [21-24°C],
generally considered “neutral” air.
ClimaDry® Application Considerations
Unlike most hot gas reheat options, the ClimaDry®
option will operate over a wide range of EWTs. Special
fl ow regulation (water regulating valve) is not required
for low EWT conditions. However, below 55°F [13°C],
supply air temperatures may not be maintained at
72°F [22°C] because the cooling capacity exceeds the
reheat coil capacity at low water temperatures. Below
55°F [13°C], essentially all water is diverted to the
Tranquility
®
30 (TT) Series
Rev.: 07/18/13
ClimaDry® Modulating Reheat Option
reheat coil (no heat of rejection to the building loop).
Although the ClimaDry® option will work fi ne with low
EWTs, overcooling of the space may result with well
water systems or on rare occasions with ground loop
(geothermal) systems (Note: Extended range units are
required for well water and ground loop systems).
Since dehumidifi cation is generally only required in
cooling, most ground loop systems will not experience
overcooling of the supply air temperature. If overcooling
of the space is a concern (e.g. computer room well
water application), auxiliary heating may be required to
maintain space temperature when the unit is operating in
the dehumidifi cation mode.
Unit minimum entering air temperature while in the
dehumidifi cation, cooling, or continuous fan modes is 65ºF DB/55ºF WB. Operation below this minimum may
result in nuisance faults.
Water-Source Heat Pumps with ClimaDry® should not be
used as make-up air units. These applications should use
equipment specifi cally designed for makeup air.
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.
Min. entering water30ºF [-1ºC]20ºF [-6.7ºC]
Normal entering water50-110ºF [10-43ºC]30-70ºF [-1 to 21ºC]
Max. entering water120ºF [49ºC]90ºF [32ºC]
Normal Water Flow
CoolingHeating
*60/45ºF [16/7ºC]40ºF [4.4ºC]
TT
1.5 to 3.0 gpm / ton
[1.6 to 3.2 l/m per kW]
*If with ClimaDry® 65/55°
40
ClimateMaster Water-Source Heat Pumps
Page 41
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tranquility
®
30 (TT) Series
Rev.: 07/18/13
Unit Starting and Operating Conditions
Commissioning Conditions
Consult Table 9b for the particular model. Starting conditions vary depending upon model and are based upon the
following notes:
Notes:
1. Conditions in Table 9b are not normal or continuous operating conditions. Minimum/maximum limits are start-up
conditions to bring the building space up to occupancy temperatures. Units are not designed to operate under
these conditions on a regular basis.
2. Voltage utilization range complies with AHRI Standard 110.
Min. entering water30ºF [-1ºC]20ºF [-6.7ºC]
Normal entering water50-110ºF [10-43ºC]30-70ºF [-1 to 21ºC]
Max. entering water120ºF [49ºC]90ºF [32ºC]
Normal Water Flow
*If with ClimaDry® 65/55°
CoolingHeating
1.5 to 3.0 gpm / ton
[1.6 to 3.2 l/m per kW]
climatemaster.com
41
Page 42
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
Rev.: 07/18/13
®
30 (TT) 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. ClimaDry®-equipped units have a manual
air bleed valve at the top of the reheat coil. This
valve must be used to bleed the air from the reheat
coil after fi lling the system, for ClimaDry® to operate
properly.
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.
42
ClimateMaster Water-Source Heat Pumps
Page 43
THE SMART SOLUTION FOR ENERGY EFFICIENCY
When fl ushing/purging units equipped with ClimaDry®
the unit should be fully fl ushed/purged before attempt-
ing to fl ush/purge the ClimaDry® coil. Once the unit
is fl ushed, energize the modulating three-way dehu-
midifi cation valve to allow fl ow through the ClimaDry®
hydronic circuit.
The unit must be powered (but not operating) during
fl ushing/purging. Unit power is required to operate the
three-way modulating valve during fl ushing.
Disable the ClimaDry® sensor located in the supply air
stream by removing the white wire from the low voltage
terminal block (LVTB) as shown in the fi gure that follows.
Energize the modulating three-way dehumidifi cation
valve by removing the red wire from the ACC1 ‘N.O.’ terminal on the DXM board. Connect this wire to the ACC1
‘NC’ terminal of the DXM controller, as shown in fi gure
1, to energize the modulating three-way dehumidifi ca-
tion valve. Once energized, the valve will take 45 – 75
seconds to fully shift. Continue fl ushing during this time.
After the valve has completed its shift, use the air bleed
from the top of the reheat coil to purge air from the coil.
Tranquility
®
30 (TT) Series
Rev.: 07/18/13
Flushing/Purging Units with ClimaDry
De-energize the valve by removing the red wire from the
ACC1 ‘NC’ terminal on the DXM board. The valve will
spring return to its normal position in just a few seconds.
After the valve has fully returned, repeat the process of
running the valve through its cycle and purging air from
the reheat coil.
Under extreme circumstances this procedure may be
required multiple times to purge all air from the circuit.
After completing the fl ushing/purging procedure, recon-
nect the red wire to the ACC1 ‘N.O.’ terminal on the
DXM for normal operation. Reconnect the white sensor wire to the LVTB, as shown below. If air is allowed
to collect in the ClimaDry® piping, nuisance trips may
occur. Additional fl ush/purge cycles may be used when
required.
Normal Unit Wiring
White Thermistor Wire
Red Three-Way Valve Wire
®
White Thermistor WireRed Three-Way Valve Wire
climatemaster.com
43
Page 44
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
Rev.: 07/18/13
®
30 (TT) Series
Unit and System Checkout
WARNING!
WARNING! Polyolester Oil, commonly known as POE oil, is
a synthetic oil used in many refrigeration systems including
those with HFC-410A refrigerant. POE oil, if it ever comes
in contact with PVC or CPVS piping, may cause failure of
the PVC/CPVC. PVC/CPVC piping should never be used
as supply or return water piping with water source heat
pump products containing HFC-410A as system failures and
property damage may result.
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 CXM/DXM control is
properly set.
Unit fan: Manually rotate fan to verify free rotation
and ensure that blower wheel is secured to the
motor shaft. Be sure to remove any shipping
supports if needed. DO NOT oil motors upon 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 CXM or DXM fi eld selection
options are properly set.
SYSTEM CHECKOUT
System water temperature: Check water temperature
for proper range and also verify heating and cooling
set points for proper operation.
System pH: Check and adjust water pH if necessary
to maintain a level between 6 and 8.5. Proper pH
promotes longevity of hoses and 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.
44
ClimateMaster Water-Source Heat Pumps
Page 45
THE SMART SOLUTION FOR ENERGY EFFICIENCY
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 on the
CXM/DXM control board as shown below in
Figure 25. See controls description for details.
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
°F and 25°F [
g. Turn thermostat to “OFF” position. A hissing noise
indicates proper functioning of the reversing valve.
8°C and 14°C].
climatemaster.com
Tranquility
®
30 (TT) Series
Rev.: 07/18/13
Unit Start-Up Procedure
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 “HEA T” 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 CXM/DXM 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.
45
Page 46
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
Rev.: 07/18/13
®
30 (TT) Series
Unit Start-Up Procedure
Figure 25: Test Mode Pins
Short test pins together
to enter Test Mode and
speed-up timing and delays
for 20 minutes.
LT1
LT2
Motorized Water Valve Option Corrections
Model Cv MOPD
10.3150
10.3150
026
10.3150
10.3150
10.3150
038
10.3150
10.3150
10.3150
049
10.3150
8.9150
8.9150
064
8.9150
8.9150
8.9150
072
8.9150
WPD Adders (Part Load) WPD Adders (Full Load)
GPMPSIFTGPMPSIFT
3.50.120.274.00.150.35
5.80.310.726.00.340.78
7.00.461.078.00.601.39
4.00.150.354.50.190.44
6.00.340.786.80.430.99
8.00.601.399.00.761.76
5.50.290.666.00.340.78
8.30.641.489.00.761.76
11.01.142.6312.01.363.14
7.00.621.437.50.711.64
10.51.393.2211.31.603.69
14.02.475.7215.02.846.56
7.50.711.648.50.912.11
11.31.613.7212.82.074.78
15.02.846.5617.03.658.43
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! 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.
UNIT OPERATING CONDITIONS
ClimaDry® II Option Corrections
(When Operating in Non-ClimaDry® Mode)
Model
015
018
024
030
036
042
048
060
WARNING!
CAUTION!
Additional WPD
GPMPSIFT
1.80.320.73
2.80.771.77
2.30.521.20
3.41.132.62
3.00.882.04
4.51.984.58
3.80.621.44
5.61.353.12
4.50.872.02
6.81.994.60
5.31.212.80
7.92.696.21
6.01.553.58
9.03.498.06
7.51.493.45
11.33.397.82
Table 10: TT Coax Water Pressure Drop
Model
026
038
049
064
072
*Note: To convert to kPa millibars, multiply by 10.
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;
Table 11: TT Series Typical Unit Operating Pressures and Temperatures (60Hz - I-P Units)
TT026Full Load Cooling - without HWG activeFull 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
118-128
118-128
118-128
128-138
128-138
128-138
136-146
136-146
136-146
139-149
139-149
139-149
143-153
143-153
143-153
Discharge
Pressure
PSIG
159-179
146-166
132-152
186-206
172-192
158-178
281-301
267-287
253-273
368-388
354-374
340-360
465-485
450-470
433-453
*Based on 15% Methanol antifreeze solution
Superheat Subcooling
25-30
25-30
25-30
18-23
18-23
18-23
7-12
7-12
7-12
6-11
6-11
6-11
6-11
6-11
6-11
9-14
7-12
7-12
8-13
6-11
6-11
7-12
5-10
4-9
7-12
5-10
5-10
7-12
5-10
5-10
Water
Temp
Rise
16.7-18.7
12.3-14.3
7.9-9.9
16.3-18.3
12.1-14.1
7.8-9.8
15.7-17.7
11.6-13.6
7.6-9.6
14.9-16.9
11-13
7.2-9.2
13.9-15.9
10.2-12.2
6.5-8.5
• Subcooling is based upon head pressure at
compressor service port;
• Cooling air and water values can vary greatly with
changes in humidity level.
Air Temp
Drop °F
°F
19-25
20-26
20-26
19-25
20-26
20-26
19-25
19-25
19-25
18-24
18-24
18-24
17-23
17-23
17-23
DB
Suction
Pressure
PSIG
72-83
75-85
78-88
102-112
106-116
110-120
128-138
134-144
141-151
162-172
166-176
171-181
Discharge
Pressure
PSIG
273-293
275-295
277-297
302-322
303-323
305-325
330-350
332-352
334-354
367-387
372-392
377-397
Superheat Subcooling
6-11
6-11
6-11
8-12
8-12
8-12
10-15
10-15
10-15
14-19
15-20
17-22
®
30 (TT) Series
Rev.: 07/18/13
3-8
3-8
3-8
6-11
6-11
6-11
8-13
8-13
8-13
10-15
10-15
10-15
Water
Temp
Drop
°F
5.9-7.9
4.2-6.2
2.7-4.7
8.9-10.9
6.7-8.7
4.5-6.5
11.3-13.3
8.5-10.5
5.8-7.8
14.4-16.4
10.8-12.8
7.1-9.1
Air
Temp
Rise °F
DB
16-22
17-23
18-24
22-28
23-29
23-29
27-34
28-35
28-35
33-41
34-42
34-42
TT038Full Load Cooling - without HWG activeFull Load Heating - without HWG active
Entering
Water
Temp
°F
30*
110
Water
Flow
GPM/ton
2.25
50
70
90
2.25
2.25
2.25
2.25
1.5
1.5
1.5
1.5
1.5
Suction
Pressure
PSIG
120-130
119-129
3
119-129
129-139
128-138
128-138
3
136-146
135-145
3
135-145
140-150
140-150
3
140-150
145-155
145-155
3
145-155
Discharge
Pressure
PSIG
156-176
148-168
138-158
225-245
211-231
197-217
302-322
283-303
265-285
390-410
369-389
349-369
488-508
467-487
447-467
Superheat Subcooling
*Based on 15% Methanol antifreeze solution
25-30
25-30
25-30
15-20
15-20
15-20
9-14
9-14
9-14
7-12
8-13
8-13
7-12
8-13
8-13
Water
Temp
Rise
°F
9-14
8-13
8-13
10-15
9-14
9-14
13-18
12-17
12-17
13-18
8-13
8-13
13-18
8-13
8-13
22.1-24.1
16.8-18.8
10.5-12.5
21.9-23.9
16.1-18.1
10.3-12.3
21.5-23.5
15.8-17.8
10-12
20.5-22.5
14.9-16.9
9.3-11.3
19-21
14-16
9-11
climatemaster.com
Air Temp
Drop °F
DB
18-24
19-25
19-25
18-24
19-25
19-25
18-24
19-25
19-25
17-23
17-23
17-23
17-23
17-23
17-23
Suction
Pressure
PSIG
69-79
73-83
76-86
96-106
100-110
105-115
123-133
129-139
135-145
157-167
169-179
181-191
Discharge
Pressure
PSIG
293-313
297-317
300-320
322-342
326-346
331-351
352-372
358-378
364-384
390-410
399-419
408-428
Superheat Subcooling
7-12
7-12
7-12
10-15
10-15
10-15
11-16
11-16
11-16
13-18
13-18
14-19
14-19
14-19
14-19
17-22
17-22
17-22
19-24
19-24
19-24
18-23
16.5-21.5
15-20
Water
Temp
Drop
°F
8.9-10.9
6.7-8.7
4.5-6.5
12.2-14.2
9.3-11.3
6.4-8.4
15-17
11.6-13.6
8.2-10.2
21-23
15.5-17.5
10.5-12.5
Air
Temp
Rise °F
DB
17-23
18-24
19-25
23-29
24-30
24-30
28-35
29-36
30-37
36-44
37-45
39-47
47
Page 48
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
®
30 (TT) Series
Rev.: 07/18/13
Unit Operating Conditions
TT049Full Load Cooling - without HWG activeFull Load Heating - without HWG active
Entering
Water
Temp
30*
110
Water
Flow
GPM/ton
°F
2.25
50
70
90
2.25
2.25
2.25
2.25
1.5
1.5
1.5
1.5
1.5
Suction
Pressure
PSIG
112-122
111-121
3
111-121
125-135
123-133
3
122-132
133-143
132-142
3
131-141
138-148
137-147
3
136-146
144-154
143-153
3
142-152
Discharge
Pressure
PSIG
187-207
167-187
147-167
242-262
224-244
205-225
310-330
290-310
270-290
396-416
374-394
352-372
497-517
472-492
447-467
Superheat Subcooling
22-27
22-27
23-28
13-18
13-18
14-19
8-13
8-13
9-14
7-12
7-12
7-12
7-12
7-12
7-12
14-19
12-17
11-16
10-15
9-14
7-12
8-13
7-12
5-10
7-12
6-11
4-9
5-10
4-9
3-8
*Based on 15% Methanol antifreeze solution
TT064Full Load Cooling - without HWG activeFull Load Heating - without HWG active
Entering
Water
Temp
30*
50
70
90
110
Water
Flow
GPM/ton
°F
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
117-127
116-126
115-125
128-138
126-136
125-135
135-145
134-144
133-143
139-149
138-148
138-148
144-154
143-153
142-152
Discharge
Pressure
PSIG
170-190
143-163
135-155
238-258
222-242
205-225
315-335
296-316
276-296
408-428
386-406
364-384
515-535
493-513
469-489
Superheat Subcooling
27-32
28-33
29-34
16-21
21-26
26-31
10-15
12-17
15-20
10-15
10-15
10-15
8-13
8-13
8-13
15-20
13-18
12-17
14-19
13-18
12-17
14-19
13-18
11-16
15-20
13-18
11-16
14-19
13-18
12-17
*Based on 15% Methanol antifreeze solution
TT072Full Load Cooling - without HWG activeFull 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
119-129
117-127
115-125
131-141
130-140
129-139
135-145
131-141
128-138
139-149
137-147
135-145
145-155
145-155
144-154
Discharge
Pressure
PSIG
155-175
150-170
144-164
210-230
205-225
200-220
300-320
295-315
290-310
390-410
370-390
350-370
490-510
470-490
452-472
Superheat Subcooling
25-30
25-30
28-32
10-15
11-16
13-18
10-15
11-16
13-18
10-15
10-15
10-15
10-15
10-15
9-14
17-22
17-22
17-22
12-17
12-17
12-17
15-20
14-19
14-19
16-21
14-19
13-18
16-21
14-19
13-18
*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]
Water
Temp
Rise
°F
20.7-22.7
15.5-17.5
10.2-12.2
20.9-22.9
15.6-17.6
10.2-12.2
20.5-22.5
15.2-17.2
9.9-11.9
19.2-21.2
14.3-16.3
9.3-11.3
18-20
13.3-15.3
8.5-10.5
Water
Temp
Rise
°F
18.2-20.2
12.6-14.6
7-9
20.5-22.5
14.9-16.9
9.2-11.2
21-23
15.5-17.5
10-12
20.1-22.1
14.8-16.8
9.5-11.5
19-21
14-16
9-11
Water
Temp
Rise
°F
18-20
13.2-15.2
8.4-9.4
18.5-20.5
14-16
9.5-11.5
17.6-19.6
13.8-15.8
10-12
16.7-18.7
12.6-14.6
8.5-10.5
15.9-17.9
11.7-13.7
7.4-9
Rise, Cooling
°F, [°C]
9 - 12
[5 - 6.7]
20 - 26
[11.1 - 14.4]
Air Temp
Drop °F
DB
18-24
18-24
18-24
19-25
19-25
19-25
19-25
19-25
19-25
18-24
18-24
18-24
17-23
17-23
17-23
Air Temp
Drop °F
DB
17-23
17-23
17-23
21-27
21-27
21-27
22-28
22-28
22-28
21-27
21-27
21-27
20-26
20-26
20-26
Air
Temp
Drop °F
DB
21-27
21-27
22-28
22-28
23-29
24-30
23-29
23-29
23-29
22-28
22-28
22-28
20-27
20-27
20-27
Drop, Heating
°F, [°C]
[2.2 - 4.4]
[5.6 - 9.4]
Suction
Pressure
93-103
98-108
103-113
123-133
130-140
137-147
165-175
175-185
185-195
Pressure
Pressure
4 - 8
10 - 17
PSIG
66-76
69-79
72-82
Suction
PSIG
66-76
69-79
72-82
90-100
95-105
99-109
115-125
120-130
126-136
157-167
161-171
166-176
Suction
PSIG
61-71
65-75
68-78
89-99
98-108
106-116
119-129
132-142
144-154
162-172
172-182
182-192
Discharge
Pressure
PSIG
286-306
289-309
292-312
314-334
320-340
326-346
344-364
354-374
361-381
390-410
401-421
413-433
Discharge
Pressure
PSIG
282-302
285-305
289-309
310-330
313-333
316-336
337-357
341-361
345-365
390-410
394-414
398-418
Discharge
Pressure
PSIG
292-312
296-316
300-320
327-347
337-357
348-368
365-385
380-400
395-415
418-438
430-450
444-464
Superheat Subcooling
7-12
7-12
7-12
8-13
8-13
8-13
9-14
9-14
9-14
13-18
15-20
17-22
Superheat Subcooling
10-16
10-16
10-16
11-17
11-17
11-17
12-18
12-18
12-18
15-20
15-20
15-20
8-13
9-14
9-14
10-15
10-15
10-15
9-14
9-14
9-14
8-13
8-13
8-13
9-14
9-14
10-15
12-17
12-17
12-17
14-19
14-19
15-20
14-19
14-19
15-20
Superheat Subcooling
11-16
11-16
10-15
10-15
10-15
10-15
10-15
10-15
10-15
10-15
10-15
11-16
13-18
14-19
15-20
19-24
14-19
9-14
21-26
16-21
11-16
19-24
19-24
19-24
Water
Temp
Drop
°F
8-10
6-8
4-6
11.5-13.5
8.7-10.7
5.9-7.9
15-17
11.5-13.5
7.9-9.9
19.6-21.6
15-17
10.3-12.3
Water
Temp
Drop
°F
8-10
6-8
4-6
11.3-13.3
8.5-10.5
5.7-7.7
14-16
10.6-12.6
7.3-9.3
18.2-20.2
13.9-15.9
9.6-11.6
Water
Temp
Drop
7.2-9.2
5.4-7.4
3.5-5.5
10.9-12.9
8.3-10.3
5.7-7.7
14.7-16.7
11.3-13.3
7.9-9.9
19.4-21.4
14.7-16.7
10.1-12.1
°F
Air
Temp
Rise °F
DB
18-24
19-25
19-25
23-29
24-30
25-31
28-35
29-36
30-37
37-45
38-46
39-47
Air
Temp
Rise °F
DB
19-25
19-25
20-26
24-30
25-31
26-32
28-35
29-36
30-37
37-45
38-46
39-47
Air
Temp
Rise
°F DB
19-25
20-26
21-27
26-32
28-34
30-36
33-39
36-42
38-44
43-49
45-51
47-53
48
ClimateMaster Water-Source Heat Pumps
Page 49
THE SMART SOLUTION FOR ENERGY EFFICIENCY
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.
Hot Water Generator Coils - See water coil
maintenance for ground water units. If the potable
water is hard or not chemically softened, the high
temperatures of the desuperheater will tend to scale
even quicker than the water coil and may need more
frequent inspections. In areas with extremely hard water,
a HWG is not recommended.
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.
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.
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.
climatemaster.com
Tranquility
Preventive Maintenance
®
30 (TT) Series
Rev.: 07/18/13
49
Page 50
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
®
30 (TT) Series
Rev.: 07/18/13
Functional Troubleshooting
FaultHtg Clg Possible CauseSolution
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 coolingBring water temp within design parameters.
XReduced or no air fl ow in heating
High Pressure
XAir temperature out of range in heatingBring return air temp within design parameters.
XXOvercharged with refrigerantCheck superheat/subcooling vs typical operating condition table.
XXBad HP SwitchCheck 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
No Fault Code Shown
Unit Short Cycles
Only Fan Runs
Only Compressor Runs
Unit Doesn’t Operate
in Cooling
XXInsuffi cient chargeCheck for refrigerant leaks
XCompressor pump down at start-upCheck charge and start-up water fl ow.
XReduced or no water fl ow in heating
XInadequate antifreeze levelCheck antifreeze density with hydrometer.
Improper temperature limit setting (30°F vs
X
10°F [-1°C vs -2°C])
XWater Temperature out of rangeBring water temp within design parameters.
XXBad thermistorCheck temp and impedance correlation per chart
X Reduced or no air fl ow in cooling
X Air Temperature out of rangeToo 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 thermistorCheck temp and impedance correlation per chart.
XXBlocked drainCheck for blockage and clean drain.
XXImproper trapCheck trap dimensions and location ahead of vent.
X Poor drainage
X Moisture on sensorCheck for moisture shorting to air coil.
XXPlugged air fi lterReplace air fi lter.
xXRestricted Return Air FlowFind and eliminate restriction. Increase return duct and/or grille size.
XXUnder Voltage
XXOver Voltage
XHeating 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 swappedReverse position of thermistors
XXNo compressor operationSee "Only Fan Operates".
XXCompressor overloadCheck and replace if necessary.
XXControl boardReset power and check operation.
XXDirty air fi lterCheck and clean air fi lter.
XXUnit in "test mode"Reset power or wait 20 minutes for auto exit.
XXUnit selectionUnit may be oversized for space. Check sizing for actual load of space.
XXCompressor overloadCheck and replace if necessary
XXThermostat positionEnsure thermostat set for heating or cooling operation.
XXUnit locked outCheck for lockout codes. Reset power.
XXCompressor OverloadCheck compressor overload. Replace if necessary.
XXThermostat wiring
XXThermostat wiringCheck G wiring at heat pump. Jumper G and R for fan operation
XX
Fan motor relay
XXCheck fan power enable relay operation (if present).
XXFan motorCheck for line voltage at motor. Check capacitor.
XXThermostat wiring
X Reversing valve
X Thermostat setupCheck for ‘O’ RV setup not ‘B’.
X Thermostat wiringCheck O wiring at heat pump. Jumper O and R for RV coil ‘click’.
X Thermostat wiring
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 thermostat wiring at heat pump. Jumper Y and R for compressor operation
in test mode.
Jumper G and R for fan operation. Check for Line voltage across BR contacts.
Check thermostat wiring at heat pump. Jumper Y and R for compressor operation
in test mode
Set for cooling demand and check 24VAC on RV coil and at CXM/DXM board.
If RV is stuck, run high pressure up by reducing water fl ow and while operating
engage and disengage RV coil voltage to push valve.
Put thermostat in cooling mode. Check 24 VAC on O (check between C and
O); check for 24 VAC on W (check between W and C). There should be voltage
on O, but not on W. If voltage is present on W, thermostat may be bad or wired
incorrectly.
50
ClimateMaster Water-Source Heat Pumps
Page 51
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Performance Troubleshooting Htg Clg Possible CauseSolution
Insuffi cient capacity/ Not
cooling or heating
High Head Pressure
Low Suction Pressure
Low Discharge Air Temperature
in Heating
High humidity
XXDirty fi lterReplace or clean.
XReduced or no air fl ow in heating
X Reduced or no air fl ow in cooling
XXLeaky duct work
XXLow refrigerant chargeCheck superheat and subcooling per chart.
XXRestricted metering deviceCheck superheat and subcooling per chart. Replace.
X Defective reversing valvePerform RV touch test.
XXThermostat improperly locatedCheck location and for air drafts behind stat.
XXUnit undersizedRecheck loads & sizing. Check sensible clg. load and heat pump capacity.
XXScaling in water heat exchangerPerform scaling check and clean if necessary.
XXInlet water too hot or too coldCheck load, loop sizing, loop backfi ll, ground moisture.
XReduced or no air fl ow in heating
X Reduced or no water fl ow in cooling
X Inlet water too hotCheck load, loop sizing, loop backfi ll, ground moisture.
XAir temperature out of range in heatingBring return air temperature within design parameters.
X Scaling in water heat exchangerPerform scaling check and clean if necessary.
XXUnit overchargedCheck superheat and subcooling. Re-weigh in charge.
XXNon-condensables in systemVacuum system and re-weigh in charge.
XXRestricted metering device.Check superheat and subcooling per chart. Replace.
XReduced water fl ow in heating.
XWater temperature out of range.Bring water temperature within design parameters.
X Reduced air fl ow in cooling.
X Air temperature out of rangeToo much cold vent air? Bring entering air temperature within design parameters.
XXInsuffi cient chargeCheck for refrigerant leaks.
XToo high of air fl owCheck fan motor speed selection and air fl ow chart.
XPoor performanceSee ‘Insuffi cient Capacity’
X Too high of air fl owCheck fan motor speed selection and airfl ow chart.
X Unit oversizedRecheck loads & sizing. Check sensible clg load and heat pump capacity.
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.
Check supply and return air temperatures at the unit and at distant duct registers
if signifi cantly different, duct leaks are present.
Check for dirty air fi lter and clean or replace.
Check fan motor operation and air fl ow restrictions.
Too high of external static. Check static vs. blower table.
Check pump operation or valve operation/setting.
Check water fl ow. Adjust to proper fl ow rate.
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.
Check for dirty air fi lter and clean or replace.
Check fan motor operation and air fl ow restrictions.
Too high of external static. Check static vs. blower table.
Tranquility
®
30 (TT) Series
Rev.: 07/18/13
Performance Troubleshooting
climatemaster.com
51
Page 52
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
Rev.: 07/18/13
®
30 (TT) 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 ModeHeating Mode
Entering Fluid Temperature
Leaving Fluid Temperature
Temperature Differential
Return-Air TemperatureDBWBDB
Supply-Air Temperature DBWBDB
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
Page 53
THE SMART SOLUTION FOR ENERGY EFFICIENCY
s
Refrigerant Circuit Diagram
+($7,1*&<&/($1$/<6,6
$)$)
)3+($7,1*
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$)$)
$,5
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$)$)
36,36,
:$7(5,1:$7(5287
Tranquility
®
30 (TT) Series
Functional Troubleshooting
36,
$)
68&7,21
&2035(6625
',6&+$5*(
+:*
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36,
Look up pressure drop in
I.O.M. or spec. catalog to
determine flow rate.
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.
%WXKU
GHJ)
GHJ)
5HY
climatemaster.com
53
Page 54
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
®
30 (TT) Series
Rev.: 07/18/13
Warranty (U.S. & Canada)
CLIMATE MASTER, INC.
LIMITED EXPRESS WARRANTY/ LIMITATION OF REMEDIES AND LIABILITY
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
ClimateMaster Water-Source Heat Pumps
54
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.
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,
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-
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-
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
OBTAINING WARRANTY PERFORMANCE
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.
Climate Master, Inc. • Customer Service • 7300 S.W. 44th Street • Oklahoma City, Oklahoma 73179 (405) 745-6000
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:
Please refer to the CM Installation, Operation and Maintenance Manual for operating and maintenance instructions.
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.
Rev.: 11/09 LC083
*LC083*
Page 55
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Rev.: 10/09
Tranquility
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
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.
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 • (405) 745-6000 • FAX (405) 745-6068
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.
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-
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
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
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
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
®
30 (TT) Series
Rev.: 07/18/13
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
Page 56
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
®
30 (TT) Series
Rev.: 07/18/13
Revision History
Date:Item:Action:
07/18/13
04/29/13
11/09/12
09/27/12
08/17/12AllUpdated Tranquility
04/16/12
12/14/11TT026, 072Added new voltages
08/09/11Unit Maximum Working Water PressureUpdated to Refl ect New Safeties
08/01/11First Published
EAT Minimum Limit ClimaDry
and ECM Fan Motor (Single Phase) Wiring Diagram
®
and Units with CXM Board
Updated
Model NomenclatureUpdated Revision Levels
POE Oil WarningAdded
EAT Limits
Water Quality Table
Condensate Drain Connection
Updates to Text - ClimaDry
Updated
Updated
®
Option
®
27 to Tranquility® 30
AllUpdated ClimaDry® II Information
ISO 9001:2008
Certified
Quality: First & Always
T
O
D
E
A
I
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F
I
I
T
A
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I
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I
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A
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*97B0075N05*
97B0075N05
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.