ClimateMaster DG series Unit installation

Tranquility® 22
(TZ) Series
Table of Contents
Models TZH/V 024 - 060
60 Hz - HFC-410A
INSTALLATION, OPERATION,
& MAINTENANCE
97B0075N16
Revised: 12 May, 2015
Model Nomenclature
General Information
Unit Physical Data
Horizontal Installation
Field Conversion of Air Discharge
Horizontal Installation
Vertical Installation
Piping Installation
vFlow™ Heat Pump Applications Overview
Water-Loop Heat Pump Applications
Ground-Loop Heat Pump Applications
Ground-Loop and Ground Water Heat
Pump Applications
Ground-Water Heat Pump Applications
Water Quality Standards
Electrical - Line Voltage
Electrical Data
Electrical - Power & Low Voltage Wiring
Electrical - Low Voltage Wiring
Electrical - Low Voltage Wiring for non-vFlow™ Units
Using External Motorized Water Valve
Electrical - Thermostat Wiring
Blower Performance Data
ECM Blower Control
Typical Wiring Diagram - Single Phase Units
Typical Wiring Diagram - Single Phase Unit
with MPC Controller
Typical Wiring Diagram - Three Phase Units
DXM2 Controls
DXM2 Layout and Connections
Unit Starting and Operating Conditions
Piping System Cleaning and Flushing
Unit and System Checkout
Unit Start-Up Procedure
Unit Operating Conditions
Preventive Maintenance
Troubleshooting
DXM2 Process Flow Chart
Functional Troubleshooting
Performance Troubleshooting
Start-Up Log Sheet
Functional Troubleshooting
Warranty (U.S. & Canada)
Warranty (International)
Revision History
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CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
This Page Intentionally Left Blank
2
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Model Nomenclature
1 2
3
4 5 6
7
TZ
V 024 C G D 3
8
9
10
11
12
13
14
15
5 B L T S
STANDARD
SERIES
S = Standard
TZ = Tranquility® 22
SUPPLY AIR FLOW &
MOTOR CONFIGURATION
CONFIGURATION
V = Vertical Up
H = Horizontal
T
B
S
UNIT SIZE
Supply Configuration
Top
TZV
TZH
Back
TZH
Straight
Motor
ECM
ECM
ECM
RETURN AIR FLOW CONFIGURATION
024
030
036
042
048
060
L = Left Return
R = Right Return
V = Left Return, Stainless Steel Drain Pan
W = Right Return, Stainless Steel Drain Pan
HEAT EXCHANGER OPTIONS
Standard
HWG (Coil Only)
REVISION LEVEL
C = Current Revision
WATER CIRCUIT OPTIONS
VOLTAGE
3 = Internal Pump Standard Head (Variable) UPM-Geo
4 = Internal Pump High Head (Variable) Magna Pump
5 = Motorized Valve (Modulating) Closed Loop Applications,
Low System Pressure Drop
6 = Motorized Valve (Modulating) Open Loop Applications,
High System Pressure Drop
7 = Internal Secondary Pump
G = 208-230/60/1
E = 265/60/1
F = 460/60/3
H = 208-230/60/3
CONTROLS
D = DXM2
M = DXM2 w/LON
P = DXM2 w/MPC
Non Coated Air Coil Tin Plated Air Coil
Copper Cupro-Nickel Copper Cupro-Nickel
B
G
A
J
T
V
U
W
CABINET
OPTION RANGE
1
A
J
K
2
C
L
M
3
E
N
P
4
G
R
S
ULTRA
QUIET
NO
YES
NO
YES
1” FILTER 2” FILTER 1” FILTER 2” FILTER
RAIL
RAIL
FRAME
FRAME
YES
NO
NO
YES
NO
YES
NO
NO
NO
YES
YES
NO
NO
YES
NO
YES
NO
NO
NO
YES
YES
NO
NO
YES
NO
YES
NO
NO
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
NO
Note: Above model nomenclature is a general reference. Consult individual engineering guides for
detailed information.
c l i m a t e m a s t e r. c o m
3
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Storage
Pre-Installation
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: Notification of installation, operation, or
maintenance information, which is important, but which is
not hazard-related.
WARNING!
WARNING! To avoid the release of refrigerant into the
atmosphere, the refrigerant circuit of this unit must be
serviced only by technicians who meet local, state, and
federal proficiency requirements.
CAUTION!
CAUTION! To avoid equipment damage, DO NOT use
these units as a source of heating or cooling during the
construction process. The mechanical components and filters
will quickly become clogged with construction dirt and debris,
which may cause system damage.
WARNING!
WARNING! The installation of water-source heat pumps and
all associated components, parts, and accessories which
make up the installation shall be in accordance with the
regulations of ALL authorities having jurisdiction and MUST
conform to all applicable codes. It is the responsibility of
the installing contractor to determine and comply with ALL
applicable codes and regulations.
4
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 filed
within 15 days, the freight company can deny the claim
without recourse.
Note: It is the responsibility of the purchaser to file all
necessary claims with the carrier. Notify your equipment
supplier of all damage within fifteen (15) days of
shipment.
Storage - Equipment should be stored in its original
packaging in a clean, dry area. Store units in an upright
position at all times. Stack units a maximum of 3 units
high.
Unit Protection - Cover units on the job site with either
the original packaging or an equivalent protective
covering. Cap the open ends of pipes stored on the
job site. In areas where painting, plastering, and/or
spraying has not been completed, all due precautions
must be taken to avoid physical damage to the units
and contamination by foreign material. Physical damage
and contamination may prevent proper start-up and may
result in costly equipment clean-up.
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
General Information
Examine all pipes, fittings, and valves before installing
any of the system components. Remove any dirt or debris
found in or on these components.
Pre-Installation - Installation, Operation, and
Maintenance instructions are provided with each unit.
Horizontal equipment is designed for installation
above false ceiling or in a ceiling plenum. Other unit
configurations 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 finished.
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 airflow patterns are field convertible (horizontal
units only). Locate the airflow 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.
CAUTION!
CAUTION! All three phase scroll compressors must have
direction of rotation verified at start-up. Verification 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
significantly reduce performance, reliability, and service life.
Always move and store units in an upright position. Tilting
units on their sides may cause equipment damage.
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.
c l i m a t e m a s t e r. c o m
5
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Unit Physical Data
Tranquility® 22 Two-Stage (TZ) Series (60Hz Only)
Model
024
030
036
Compressor (1 Each)
042
048
060
Scroll
Factory Charge HFC-410A (oz)
51
48
54
70
80
84
Fan Motor (hp)
1/2
1/2
1/2
3/4
3/4
1
Blower Wheel Size (dia x w) - (in)
9X7
9X7
9X8
9X8
10X10
11X10
3/4”
3/4”
3/4”
3/4"
1"
1"
0.323
0.323
0.738
0.89
0.738
0.939
ECM Fan Motor & Blower
Water Connection Size
FPT(in)
Coax Volume (gallons)
HWG Connection Size
FPT(in)
1/2”
Vertical Upflow
Air Coil Dimensions (h x w) - (in)
20 X 17.25 20 X 17.25
Standard Filter - 1" [25.4mm] Throwaway, qty (in)
24 X 21.75
24 X 21.75 28.75 X 24 28.75 X 24
20x20
20x20
24x24
24x24
28x28
Weight - Operating, (lbs)
224
224
249
260
315
28x28
330
Weight - Packaged, (lbs)
229
229
255
266
322
337
16 X 22
16 X 22
20 X 25
20 X 25
20 X 35
20 X 35
18x25
18x25
20x28 or
2-20x14
20x28 or
2-20x14
1-20x24,
1-20x14
1-20x24,
1-20x14
Weight - Operating, (lbs)
208
208
233
244
299
314
Weight - Packaged, (lbs)
213
213
239
250
306
321
Horizontal
Air Coil Dimensions (h x w) - (in)
Standard Filter - 1" [25.4mm] Throwaway, qty (in)
Notes:
All units have TXV expansion device and 1/2” & 3/4” electrical knockouts.
Unit Maximum Water Working Pressure
Options
Internal Pump
Internal Modulating Water Valve (MWV)
6
Max Pressure PSIG [kPa]
145 [999]
300 [2,068]
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Horizontal Installation
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 filter and access panels.
Provide sufficient room to make water, electrical, and
duct connection(s).
If the unit is located in a confined 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 difficult 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 specific 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
fittings. 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.
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 soffit using field supplied, threaded
rods sized to support the weight of the unit.
Use four (4) field supplied threaded rods and factory
provided vibration isolators to suspend the unit. Hang
the unit clear of the floor slab above and support the
unit by the mounting bracket assemblies only. DO NOT
attach the unit flush with the floor slab above.
Pitch the unit toward the drain as shown in Figure 2 to
improve the condensate drainage. On small units (less
than 2.5 tons/8.8kW) ensure that unit pitch does not
cause condensate leaks inside the cabinet.
Figure 1: Hanger Bracket
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Figure 2: Horizontal Unit Pitch
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.
c l i m a t e m a s t e r. c o m
1/4” (6.4mm) pitch
toward drain for drainage
Drain Connection
7
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Horizontal Installation
Figure 3: Typical Horizontal Unit Installation
3/8” [10mm] thread rods
(by others)
Thermostat
Wiring
Stainless Steel
Braid Hose with
Integral “J” Swivel
Power Wiring
Suppy Air
Unit Power
Building
Loop
Insulated supply duct with
at least on 90 deg. elbow
to reduce air noise
Unit Power
Disconnect
Water out
Water in
Ball valve with optional
integral P/T plug
Unit Hanger Kits
(included)
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.
8
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, filter rails are the industry
standard and are included on ClimateMaster commercial
heat pumps for the purposes of holding the filter only.
For ducted return applications, the filter rail must be
removed and replaced with a duct flange or filter frame.
Canvas or flexible connectors should also be used to
minimize vibration between the unit and ductwork.
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Field Conversion of Air Discharge
Overview - Horizontal units can be field converted
between side (straight) and back (end) discharge using
the instructions below.
Figure 4: Left Return Side to Back
Remove Screws
Water
Connection End
Note: It is not possible to field convert return air
between left or right return models due to the
necessity of refrigeration copper piping changes.
Return Air
Preparation - It is best to field convert the unit on the
ground before hanging. If the unit is already hung it
should be taken down for the field 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.
Side Discharge
Water
Connection End
Rotate
Return Air
Move to Side
Return Air
Drain
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 field 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
configuration 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.
Replace Screws
Water
Connection End
Discharge Air
Back Discharge
Figure 5: Right Return Side to Back
Water
Connection End
Return Air
Supply Duct
Side Discharge
Water
Connection End
Return Air
Drain
Discharge Air
c l i m a t e m a s t e r. c o m
Back Discharge
9
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Condensate Piping
Duct System Installation
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.
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.
Each unit must be installed with its own individual trap
and connection to the condensate line (main) or riser.
Provide a means to flush or blow out the condensate line.
DO NOT install units with a common trap and/or vent.
Always vent the condensate line when dirt or air
can collect in the line or a long horizontal drain line
is required. Also vent when large units are working
against higher external static pressure than other units
connected to the same condensate main since this may
cause poor drainage for all units on the line. WHEN A
VENT IS INSTALLED IN THE DRAIN LINE, IT MUST BE
LOCATED AFTER THE TRAP IN THE DIRECTION OF
THE CONDENSATE FLOW.
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 airflow
through the unit during operation. Air flow through
the unit MUST be at or above the minimum stated
airflow 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 flexible 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 fiberglass duct
liner or be constructed from ductboard for the first few
feet. Application of the unit to uninsulated ductwork in an
unconditioned space is not recommended, as the unit’s
performance may be adversely affected.
10
At least one 90° elbow should be included in the supply
duct to reduce air noise. If air noise or excessive air flow
is a problem, the blower speed can be changed. For
airflow charts, consult submittal data for the series and
model of the specific 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 airflow 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.
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Vertical Unit Location
Vertical Installation
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 filter and access panels. Provide sufficient room to
make water, electrical, and duct connection(s).
If the unit is located in a confined 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 difficult to remove after
the unit is installed should be removed prior to setting
the unit. Refer to Figures 7 and 8 for typical installation
illustrations. Refer to unit submittal data or engineering
design guide for dimensional data.
1. Install the unit on a piece of rubber, neoprene or
other mounting pad material for sound isolation. The
pad should be at least 3/8” [10mm] to 1/2” [13mm] in
thickness. Extend the pad beyond all four edges of
the unit.
2. Provide adequate clearance for filter replacement
and drain pan cleaning. Do not block filter 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 sufficient
to allow removal of the unit, if necessary.
5. Provide access to water valves and fittings 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, filter rails are the industry
standard and are included on ClimateMaster commercial
heat pumps for the purposes of holding the filter only.
For ducted return applications, the filter rail must be
removed and replaced with a duct flange or filter frame.
Canvas or flexible connectors should also be used to
minimize vibration between the unit and ductwork.
Figure 7: Vertical Unit Mounting
Vibration Isolation Pad
Figure 8: Typical Vertical Unit Installation Using
Ducted Return Air
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
Internally insulate return
transition duct to reduce noise
c l i m a t e m a s t e r. c o m
Rev.: 2/13
11
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
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 baffle
as illustrated to reduce line-of sight sound transmitted
through return air grilles.
2. Mount the unit on a rubber or neoprene isolation pad
to minimize vibration transmission to the building
structure.
Condensate Piping for Vertical Units - A condensate
line must be installed and pitched away from the unit to
allow for proper drainage. This connection must meet
all local plumbing/building codes. Vertical units utilize
a condensate hose inside the cabinet as a trapping
loop; therefore an external trap is not necessary. Figure
10a shows typical condensate connections. Figure 10b
illustrates the internal trap for a typical vertical heat
pump. Each unit must be installed with its own individual
vent (where necessary) and a means to flush or blow
out the condensate drain line. Do not install units with a
common trap and/or vent.
Figure 9: Vertical Sound Attenuation
Figure 10a: Vertical Condensate Drain
*3/4" FPT
Vent
3/4" PVC
1/8" per foot
slope to drain
Return
Air Inlet
Water
Connections
Alternate
Condensate
Location
* 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
Notice! Units with clear plastic drain lines should
have regular maintenance (as required) to avoid
buildup of debris, especially in new construction.
12
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
located on corner post
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Piping Installation
Installation of Supply and Return Piping
Follow these piping guidelines.
1. Install a drain valve at the base of each supply and
return riser to facilitate system flushing.
2. 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 flow rate. Install an angle adapter to
avoid sharp bends in the hose when the radius falls
below the required minimum.
Insulation is not required on loop water piping except
where the piping runs through unheated areas, outside
the building or when the loop water temperature is
below the minimum expected dew point of the pipe
ambient conditions. Insulation is required if loop water
temperature drops below the dew point (insulation is
required for ground loop applications in most climates).
WARNING!
WARNING! Polyolester Oil, commonly known as POE oil, is
a synthetic oil used in many refrigeration systems including
those with HFC-410A refrigerant. POE oil, if it ever comes
in contact with PVC or CPVC piping, may cause failure of
the PVC/CPVC. PVC/CPVC piping should never be used
as supply or return water piping with water source heat
pump products containing HFC-410A as system failures and
property damage may result.
CAUTION!
CAUTION! Corrosive system water requires corrosion
resistant fittings 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.
Table 1: Metal Hose Minimum Bend Radii
®
Pipe joint compound is not necessary when Teflon
thread tape is pre-applied to hose assemblies or when
flared-end connections are used. If pipe joint compound
is preferred, use compound only in small amounts on
the external pipe threads of the fitting adapters. Prevent
sealant from reaching the flared surfaces of the joint.
Note: When antifreeze is used in the loop, ensure that
it is compatible with the Teflon® tape or pipe joint
compound that is applied.
Minimum Bend Radii
1/2" [12.7mm]
2-1/2" [6.4cm]
3/4" [19.1mm]
4" [10.2cm]
1" [25.4mm]
5-1/2" [14cm]
1-1/4" [31.8mm]
6-3/4" [17.1cm]
NOTICE! Do not allow hoses to rest against structural
building components. Compressor vibration may
be transmitted through the hoses to the structure,
causing unnecessary noise complaints.
Figure 11: Supply/Return Hose Kit
Maximum allowable torque for brass fittings is 30 ft-lbs
[41 N-m]. If a torque wrench is not available, tighten
finger-tight plus one quarter turn. Tighten steel fittings
as necessary.
Optional pressure-rated hose assemblies designed
specifically for use with ClimateMaster units are available.
Similar hoses can be obtained from alternate suppliers.
Supply and return hoses are fitted with swivel-joint fittings
at one end to prevent kinking during installation.
Hose Diameter
Rib Crimped
Swivel
Brass
Fitting
Brass
Fitting
Length
(2 ft [0.6m] Length Standard)
MPT
c l i m a t e m a s t e r. c o m
MPT
13
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
vFlow™ Heat Pump Applications Overview
vFlow™ is a revolutionary new, intelligent, and efficient way
to circulate water (or water plus antifreeze) using internal,
variable speed water flow control. The factory installed
high efficiency variable speed pumps uses almost half
the wattage of traditional fixed speed pump. vFlow™
technology improves the life expectancy of the unit by
reducing the amount of energy required to optimize the
flow of water throughout the system and also reduces the
space, cost, and labor required to install external water flow
control mechanisms (flow controllers, solenoid and flow
control valves).
vFlow™ Configurations:
1. Low System Pressure Drop Modulating Motorized
Valve – Typical for External Central Pumping.
Primarily for use on multi-unit applications with central
pumping. With this option the unit includes a low
pressure drop, high Cv modulating motorized water
valve that is controlled by the DXM2 control based
on the difference in the entering and leaving water
temperature delta T.
This valve is a standard factory installed feature for the
TZ unit.
2. High System Pressure Drop Modulating Motorized
Valve – Typical for High Pressure Water System such
as Water Well Pumps.
With this option the unit includes a high pressure
drop modulating water valve that is controlled by the
DXM2 control based on the difference in the entering
and leaving water temperature delta T. A low Cv valve
is used to provide more precise control against high
system pressure differential type of loops. This valve
is a factory installed option for the TZ unit and when
selected replaces the modulating valve.
3. Standard Head Variable Pump – Typical for Multiple
Unit Central Pumping.
With this option the unit includes an internal variable
speed pump that is best suited to low pressure drop
systems such as primary/secondary pumping. The
pump speed is controlled by the DXM2 control based
on the difference in the entering and leaving water
temperature delta T. This pump includes an internal
check valve for multiple unit installations.
This pump is a factory installed option for the TZ unit
and when selected replaces the modulating valve.
4. High Head Variable Pump – Typical for Individual
Unit Pumping.
With this option the unit includes an internal variable
speed pump that is capable of higher system pressure
drops. The pump speed is controlled by the DXM2
control based on the difference in the entering and
leaving water temperature delta T. This pump includes
14
an internal check valve for multiple unit installations.
This pump is a factory installed option for the TZ unit
and when selected replaces the modulating valve.
Variable speed pump or motorized modulating valve delivers variable
water-flow, controlled by DXM2 control, based on loop water ∆T.
Typical Closed-Loop Application (with Internal
Variable Pump Shown)
To Thermostat
Internal Variable
Pump
Water Out
High and
Low Voltage
Knockouts
Water In
Vibration Isolation Pad
Typical Open Loop Application (with Internal
Modulating Motorized Valve Shown)
For use on applications using external source for flow.
To Thermostat
Internal Motorized
Modulating Valve
Pressure
Tank
Water Out
Water In
High and
Low Voltage
Knockouts
Boiler
Drains
Optional
Filter
Vibration Isolation Pad
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
Shut Off
Ball Valves
for Isolation
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
vFlow™ Heat Pump Applications Overview - Continued
Water Pressure Schrader Ports
The pressure ports built in to the unit are provided as a
means of measuring pressure drop through the water-torefrigerant heat exchanger. The water pressure ports are
schrader ports smaller than refrigerant schrader ports.
They are the same size as tire schrader ports. A digital
pressure gauge is recommended for taking pressure
High System Pressure Drop Valve
Model
024
030
036
042
048
060
CV
MOPD
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7
7.4
7.4
7.4
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
readings through these ports. The water flow through
the unit can be determined by measuring the water
pressure at the “water pressure out” port and subtracting
it from the water pressure at the “water pressure in” port.
Comparing the pressure differential to the pressure drop
table (wpd)/flow rate in Tables 15a through 15d in this
manual will determine the flow rate through the unit.
Low System Pressure Drop Valve
WPD Adders
GPM
PSI
FT
3.0
4.5
6.0
3.8
5.6
7.5
4.5
6.8
9.0
5.3
7.9
10.5
6.0
9.0
12.0
7.0
10.5
14.0
0.41
0.92
1.63
0.65
1.42
2.55
0.92
2.09
3.67
1.27
2.83
4.99
1.63
3.67
6.52
.89
2.01
3.58
0.94
2.12
3.76
1.51
3.28
5.88
2.12
4.84
8.47
2.94
6.53
11.53
3.76
8.47
15.06
2.06
4.64
8.26
Model
024
030
036
042
048
060
CV
MOPD
4.7
4.7
4.7
7.4
7.4
7.4
7.4
7.4
7.4
10.0
10.0
10.0
10.0
10.0
10.0
19.0
19.0
19.0
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
WPD Adders
GPM
PSI
FT
3.0
4.5
6.0
3.8
5.6
7.5
4.5
6.8
9.0
5.3
7.9
10.5
6.0
9.0
12.0
7.0
10.5
14.0
0.41
0.92
1.63
0.26
0.57
1.03
0.37
0.84
1.48
0.28
0.62
1.10
0.36
0.81
1.44
0.14
0.31
0.54
0.94
2.12
3.76
0.61
1.32
2.37
0.85
1.95
3.42
0.65
1.44
2.55
0.83
1.87
3.33
0.31
0.70
1.25
Standard Head Variable Pump Performance
35
30
Head (Ft.)
25
20
15
10
5
0
0
5
10
15
Flow (GPM)
c l i m a t e m a s t e r. c o m
20
25
GPM
Head (ft)
0.00
28.7
1.00
28.4
2.00
28.1
3.00
27.9
4.00
27.7
5.00
27.0
6.00
25.3
7.00
23.7
8.00
22.2
9.00
20.6
10.00
19.1
11.00
17.7
12.00
16.2
13.00
14.8
14.00
13.4
15.00
12.1
16.00
10.8
17.00
9.5
18.00
8.2
19.00
7.0
20.00
5.8
15
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
High Head Variable Pump Performance
Magna Geo 25-140 Pump Curve
60
50
Head (Ft.)
40
30
20
10
0
0
5
10
15
20
25
30
35
Flow (GPM)
16
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
40
GPM
Head (ft)
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
12.0
13.0
14.0
15.0
16.0
17.0
18.0
19.0
20.0
21.0
22.0
23.0
24.0
25.0
44.7
45.4
46.1
46.8
47.5
47.7
47.1
46.1
45.3
43.9
42.6
41.2
39.9
38.7
37.4
36.1
34.9
33.7
32.5
31.3
30.1
28.9
27.8
26.7
25.6
24.5
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
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.
Teflon® tape thread sealant is recommended to
minimize internal fouling of the heat exchanger. Do
not over tighten connections and route piping so as
not to interfere with service or maintenance access.
Hose kits are available from ClimateMaster in different
configurations for connection between the unit and the
piping system. Depending upon selection, hose kits
may include shut off valves, P/T plugs for performance
measurement, high pressure stainless steel braided hose,
“Y” type strainer with blow down valve, and/or “J” type
swivel connection.
The piping system should be flushed to remove dirt,
piping chips, and other foreign material prior to
operation (see “Piping System Cleaning and Flushing
Procedures” in this manual). The flow rate is usually set
between 2.25 and 3.5 gpm per ton [2.9 and 4.5 l/m per
kW] of cooling capacity. ClimateMaster recommends 3
gpm per ton [3.9 l/m per kW] for most applications of
water loop heat pumps. To ensure proper maintenance
and servicing, P/T ports are imperative for temperature
and flow verification, as well as performance checks.
Water loop heat pump (cooling tower/boiler) systems
typically utilize a common loop, maintained between
60 - 90°F [16 - 32°C]. The use of a closed circuit evaporative
cooling tower with a secondary heat exchanger between
the tower and the water loop is recommended. If an
open type cooling tower is used continuously, chemical
treatment and filtering will be necessary.
Typical Water-Loop Application
3/8” [10mm] thread rods
(by others)
Thermostat
Wiring
Stainless Steel
Braid Hose with
Integral “J” Swivel
Power Wiring
Suppy Air
Unit Power
Building
Loop
Insulated supply duct with
at least on 90 deg. elbow
to reduce air noise
Unit Power
Disconnect
Water out
Water in
Ball valve with optional
integral P/T plug
Unit Hanger Kits
(included)
Low Water Temperature Cutout Setting - DXM2 Control
When antifreeze is selected, the LT1 jumper (JW3) should be clipped to select the low temperature (antifreeze 10.0°F
[-12.2°C]) setpoint and avoid nuisance faults (see “Low Water Temperature Cutout Selection” in this manual). Note:
Low water temperature operation requires extended range equipment.
c l i m a t e m a s t e r. c o m
17
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Ground-Loop Heat Pump Applications
CAUTION!
CAUTION! The following instructions represent industry
accepted installation practices for closed loop earth coupled
heat pump systems. Instructions are provided to assist the
contractor in installing trouble free ground loops. These
instructions are recommendations only. State/provincial
and local codes MUST be followed and installation MUST
conform to ALL applicable codes. It is the responsibility of
the installing contractor to determine and comply with ALL
applicable codes and regulations.
CAUTION!
CAUTION! Ground loop applications require extended range
equipment and optional refrigerant/water circuit insulation.
Pre-Installation
Prior to installation, locate and mark all existing
underground utilities, piping, etc. Install loops for new
construction before sidewalks, patios, driveways, and other
construction has begun. During construction, accurately
mark all ground loop piping on the plot plan as an aid in
avoiding potential future damage to the installation.
Piping Installation
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 fittings should not be used at any
time due to their tendency to corrode. All plastic to metal
threaded fittings should be avoided due to their potential
to leak in earth coupled applications. A flanged fitting
should be substituted. P/T plugs should be used with units
that do not include vFlow so that flow can be measured
using the pressure drop of the unit heat exchanger. Units
equipped with any of the four vFlow configurations have
built in Schrader ports. Water temperature may be viewed
on the iGate communicating thermostat.
Earth loop temperatures can range between 25 and 110°F
[-4 to 43°C]. Flow rates between 2.25 and 3 gpm [2.41 to
3.23 l/m per kW] of cooling capacity is recommended in
these applications.
Test individual horizontal loop circuits before backfilling.
Test vertical U-bends and pond loop assemblies prior to
installation. Pressures of at least 100 psi [689 kPa] should
be used when testing. Do not exceed the pipe pressure
rating. Test entire system when all loops are assembled.
Flushing the Earth Loop
Upon completion of system installation and testing, flush
the system to remove all foreign objects and purge to
remove all air.
Antifreeze
In areas where minimum entering loop temperatures
drop below 40°F [5°C] or where piping will be routed
through areas subject to freezing, antifreeze is required.
Alcohols and glycols are commonly used as antifreeze;
however your local sales office 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 fluid 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 specific gravity.
Low Water Temperature Cutout Setting - DXM2
Control
When antifreeze is selected, the LT1 jumper (JW3) should
be clipped to select the low temperature (antifreeze
10.0°F [-12.2°C]) setpoint and avoid nuisance faults (see
“Low Water Temperature Cutout Selection” in this
manual). Note: Low water temperature operation
requires extended range equipment.
Table 2: Antifreeze Percentages by Volume
Type
Methanol
100% USP food grade Propylene Glycol
Ethanol*
Minimum Temperature for Low Temperature Protection
10°F [-12.2°C]
15°F [-9.4°C]
20°F [-6.7°C]
25°F [-3.9°C]
25%
21%
16%
10%
38%
25%
22%
15%
29%
25%
20%
14%
* Must not be denatured with any petroleum based product
18
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Ground-Loop and Ground Water Heat Pump Applications
Ground-Loop Heat Pump Applications
Typical Closed Loop with Central Pumping (unit with
internal modulating water valve)
To Thermostat
Internal Motorized
Modulating Valve
Water Out
Water In
High and
Low Voltage
Knockouts
Shut Off
Ball Valves
for Isolation
Vibration Isolation Pad
Ground Water Heat Pump Applications
Typical Open Loop/Well (unit with internal
modulating water valve)
To Thermostat
Internal Motorized
Modulating Valve
Pressure
Tank
Water Out
Water In
High and
Low Voltage
Knockouts
Boiler
Drains
Shut Off
Ball Valves
for Isolation
Optional
Filter
Vibration Isolation Pad
c l i m a t e m a s t e r. c o m
19
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Ground-Water Heat Pump Applications
Open Loop - Ground Water Systems - Typical open
loop piping is shown in accompanying illustration. Shut
off valves should be included for ease of servicing. Boiler
drains or other valves should be “tee’d” into the lines to
allow acid flushing of the heat exchanger. Shut off valves
should be positioned to allow flow through the coax via the
boiler drains without allowing flow into the piping system.
P/T plugs should be used with units that do not include
vFlow™ so that flow can be measured using the pressure
drop of the unit heat exchanger. Units equipped with any
of the four vFlow™ configurations have built in Schrader
ports. Water temperature may be viewed on the iGate
communicating thermostat. Supply and return water piping
should be limited to copper, HPDE, or other acceptable
high temperature material. Note that PVC or CPVC
material is not recommended as they are not compatible
with the polyolester oil used in HFC-410A products.
WARNING!
WARNING! Polyolester Oil, commonly known as POE oil, is
a synthetic oil used in many refrigeration systems including
those with HFC-410A refrigerant. POE oil, if it ever comes
in contact with PVC or CPVC piping, may cause failure of
the PVC/CPVC. PVC/CPVC piping should never be used
as supply or return water piping with water source heat
pump products containing HFC-410A as system failures and
property damage may result.
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 qualified technician, as acid and special pumping
equipment is required. Desuperheater coils can likewise
become scaled and possibly plugged. In areas with
extremely hard water, the owner should be informed that
the heat exchanger may require occasional acid flushing.
In some cases, the desuperheater option should not be
recommended due to hard water conditions and additional
maintenance required.
20
Water Quality Standards - Table 3 should be consulted
for water quality requirements. Scaling potential should be
assessed using the pH/Calcium hardness method. If the pH
<7.5 and the calcium hardness is less than 100 ppm, scaling
potential is low. If this method yields numbers out of range
of those listed, the Ryznar Stability and Langelier Saturation
indecies should be calculated. Use the appropriate scaling
surface temperature for the application, 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, bladder-type
expansion tank to minimize mineral formation due to air
exposure. The expansion tank should be sized to provide
at least one minute continuous run time of the pump using
its drawdown capacity rating to prevent pump short cycling.
Discharge water from the unit is not contaminated in any
manner and can be disposed of in various ways, depending
on local building codes (e.g. recharge well, storm sewer,
drain field, adjacent stream or pond, etc.). Most local codes
forbid the use of sanitary sewer for disposal. Consult your
local building and zoning department to assure compliance
in your area.
Water Control Valve - Units without vFlow™ - 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. A typical pilot operated
solenoid valve draws approximately 15VA. Note the special
wiring diagrams for slow closing valves (shown later in this
manual).
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Ground-Water Heat Pump Applications
Flow Regulation - Units without vFlow™ - Flow
regulation can be accomplished by two methods. One
method of flow regulation involves simply adjusting the ball
valve or water control valve on the discharge line. Measure
the pressure drop through the unit heat exchanger, and
determine flow rate from Tables 8a through 8e. Since the
pressure is constantly varying, two pressure gauges may be
needed. Adjust the valve until the desired flow of 1.5 to 2
gpm per ton [2.0 to 2.6 l/m per kW] is achieved. A second
method of flow control requires a flow control device
mounted on the outlet of the water control valve. The
device is typically a brass fitting with an orifice of rubber
or plastic material that is designed to allow a specified
flow rate. On occasion, flow control devices may produce
velocity noise that can be reduced by applying some back
pressure from the ball valve located on the discharge line.
Slightly closing the valve will spread the pressure drop over
both devices, lessening the velocity noise.
Note: When EWT is below 50°F [10°C], 2 gpm per
ton (2.6 l/m per kW) is required.
Water Coil Low Temperature Limit Setting - For all
open loop systems the 30°F [-1.1°C] LT1 setting (factory
setting-water) should be used to avoid freeze damage to
the unit. See “Low Water Temperature Cutout Selection” in
this manual for details on the low limit setting.
c l i m a t e m a s t e r. c o m
21
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Water Quality Standards
Table 3: Water Quality Standards
Water Quality
Parameter
HX
Material
Closed
Recirculating
Open Loop and Recirculating Well
Scaling Potential - Primary Measurement
Above the given limits, scaling is likely to occur. Scaling indexes should be calculated using the limits below
pH/Calcium Hardness
Method
-
All
pH < 7.5 and Ca Hardness <100ppm
Index Limits for Probable Scaling Situations - (Operation outside these limits is not recommended)
Scaling indexes should be calculated at 66°C for direct use and HWG applications, and at 32°C for indirect HX use.
A monitoring plan should be implemented.
Ryznar
6.0 - 7.5
All
Stability Index
If >7.5 minimize steel pipe use.
-0.5 to +0.5
Langelier
All
If <-0.5 minimize steel pipe use. Based upon 66°C HWG and
Saturation Index
Direct well, 29°C Indirect Well HX
Iron Fouling
Iron Fe 2+ (Ferrous)
(Bacterial Iron potential)
All
Iron Fouling
All
-
<0.2 ppm (Ferrous)
If Fe2+ (ferrous)>0.2 ppm with pH 6 - 8, O2<5 ppm check for iron bacteria.
-
<0.5 ppm of Oxygen
Above this level deposition will occur .
Corrosion Prevention
6 - 8.5
pH
All
Hydrogen Sulfide (H2S)
All
Ammonia ion as hydroxide, chloride,
nitrate and sulfate compounds
All
Monitor/treat as
needed
-
6 - 8.5
Minimize steel pipe below 7 and no open tanks with pH <8
<0.5 ppm
At H2S>0.2 ppm, avoid use of copper and copper nickel piping or HX's.
Rotten egg smell appears at 0.5 ppm level.
Copper alloy (bronze or brass) cast components are OK to <0.5 ppm.
-
<0.5 ppm
Maximum Allowable at maximum water temperature.
Maximum
Chloride Levels
Copper
Cupronickel
304 SS
316 SS
Titanium
-
10$C
<20ppm
<150 ppm
<400 ppm
<1000 ppm
>1000 ppm
24$C
NR
NR
<250 ppm
<550 ppm
>550 ppm
38 C
NR
NR
<150 ppm
< 375 ppm
>375 ppm
Erosion and Clogging
Particulate Size and
Erosion
All
<10 ppm of particles
and a maximum
velocity of 1.8 m/s
Filtered for maximum
841 micron [0.84 mm,
20 mesh] size.
<10 ppm (<1 ppm "sandfree” for reinjection) of particles and a maximum
velocity of 1.8 m/s. Filtered for maximum 841 micron 0.84 mm,
20 mesh] size. Any particulate that is not removed can potentially
clog components.
The ClimateMaster Water Quality Table provides water quality requirements for ClimateMaster coaxial heat exchangers. The water should be evaluated by an
independent testing facility comparing to this Table and when properties are outside of these requirements, an external secondary heat exchanger must be used to
isolate the heat pump heat exchanger from the unsuitable water. Failure to do so will void the warranty for the coaxial heat exchanger and any other components
damaged by a leak.
Notes:
• Closed Recirculating system is identified by a closed pressurized piping system.
• Recirculating open wells should observe the open recirculating design considerations.
• NR - Application not recommended.
• "-" No design Maximum.
22
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
Rev.: 5/6/2014 S
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Electrical - Line Voltage
Electrical - Line Voltage - All field installed wiring,
including electrical ground, must comply with the National
Electrical Code as well as all applicable local codes. Refer
to the unit electrical data for fuse sizes. Consult wiring
diagram for field connections that must be made by
the installing (or electrical) contractor. All final electrical
connections must be made with a length of flexible conduit
to minimize vibration and sound transmission to the
building.
WARNING!
WARNING! To avoid possible injury or death due to electrical
shock, open the power supply disconnect switch and secure
it in an open position during installation.
CAUTION!
CAUTION! Use only copper conductors for field installed
electrical wiring. Unit terminals are not designed to accept
other types of conductors.
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.
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.
c l i m a t e m a s t e r. c o m
23
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Electrical - Line Voltage
Units with Modulating Motorized Valve
Model
024
030
036
042
048
060
Compressor
Voltage
Code
Voltage
Min/Max
Voltage
RLA
LRA
Qty
Fan Motor
FLA
Total Unit
FLA
Min Circ
Amp
Max Fuse/
HACR
G
E
H
F*
G
E
H
F*
G
E
H
F*
G
H
F*
G
E
H
F*
G
E
H
F*
208/230/60/1
265/60/1
208/230/60/3
460/60/3*
208/230/60/1
265/60/1
208/230/60/3
460/60/3*
208/230/60/1
265/60/1
208/230/60/3
460/60/3*
208/230/60/1
208/230/60/3
460/60/3*
208/230/60/1
265/60/1
208/230/60/3
460/60/3*
208/230/60/1
265/60/1
208/230/60/3
460/60/3*
197/252
239/292
197/252
414/506
197/252
239/292
197/252
414/506
197/252
239/292
197/252
414/506
197/252
197/252
414/506
197/252
239/292
197/252
414/506
197/252
239/292
197/252
414/506
11.7
9.1
6.5
3.5
13.1
10.2
8.7
4.3
15.3
13.0
11.6
5.7
17.9
14.2
6.2
21.2
16.0
14.0
6.4
27.1
22.4
16.5
7.2
58.3
54.0
55.4
28.0
73.0
60.0
58.0
28.0
83.0
72.0
73.0
38.0
96.0
88.0
44.0
104.0
109.7
83.1
41.0
152.9
130.0
110.0
52.0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3.9
3.2
3.9
3.2
3.9
3.2
3.9
3.2
3.9
3.2
3.9
3.2
5.2
5.2
4.7
5.2
4.7
5.2
4.7
6.9
6.0
6.9
6.0
15.6
12.3
10.4
6.7
17.0
13.4
12.6
7.5
19.2
16.2
15.5
8.9
23.1
19.4
10.9
26.4
20.7
19.2
11.1
34.0
28.4
23.4
13.2
18.5
14.6
12.0
7.6
20.3
16.0
14.8
8.6
23.0
19.5
18.4
10.3
27.6
23.0
12.5
31.7
24.7
22.7
12.7
40.8
34.0
27.5
15.0
30
20
15
15
30
25
20
15
35
30
30
15
45
35
15
50
40
35
15
60
50
40
20
HACR circuit breaker in USA only
Wire length based on one way measurement with 2% voltage drop
Wire size based on 60°C copper conductor
All fuses Class RK-5
* NEUTRAL CONNECTION REQUIRED! All F Voltage (460 vac) units require a four wire power supply with neutral. ECM motor is rated
265 vac and is wired between one hot leg and neutral.
Units with Internal Secondary Pump
Model
024
030
036
042
048
060
Compressor
Voltage
Code
Voltage
Min/Max
Voltage
RLA
LRA
Qty
G
E
H
F*
G
E
H
F*
G
E
H
F*
G
H
F*
G
E
H
F*
G
E
H
F*
208/230/60/1
265/60/1
208/230/60/3
460/60/3*
208/230/60/1
265/60/1
208/230/60/3
460/60/3*
208/230/60/1
265/60/1
208/230/60/3
460/60/3*
208/230/60/1
208/230/60/3
460/60/3*
208/230/60/1
265/60/1
208/230/60/3
460/60/3*
208/230/60/1
265/60/1
208/230/60/3
460/60/3*
197/252
239/292
197/252
414/506
197/252
239/292
197/252
414/506
197/252
239/292
197/252
414/506
197/252
197/252
414/506
197/252
239/292
197/252
414/506
197/252
239/292
197/252
414/506
11.7
9.1
6.5
3.5
13.1
10.2
8.7
4.3
15.3
13.0
11.6
5.7
17.9
14.2
6.2
21.2
16.0
14.0
6.4
27.1
22.4
16.5
7.2
58.3
54.0
55.4
28.0
73.0
60.0
58.0
28.0
83.0
72.0
73.0
38.0
96.0
88.0
44.0
104.0
109.7
83.1
41.0
152.9
130.0
110.0
52.0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Pump Motor Fan Motor
FLA
FLA
0.8
0.7
0.8
0.7
0.8
0.7
0.8
0.7
0.8
0.7
0.8
0.7
0.8
0.8
0.7
1.1
1.1
1.1
1.1
1.1
1.1
1.1
1.1
3.9
3.2
3.9
3.2
3.9
3.2
3.9
3.2
3.9
3.2
3.9
3.2
5.2
5.2
4.7
5.2
4.7
5.2
4.7
6.9
6.0
6.9
6.0
Total Unit
FLA
Min Circ
Amp
Max Fuse/
HACR
16.4
13.0
11.2
7.4
17.8
14.1
13.4
8.2
20.0
16.9
16.3
9.6
23.9
20.2
11.6
27.5
21.8
20.3
12.2
35.1
29.5
24.5
14.3
19.3
15.3
12.8
8.3
21.1
16.7
15.6
9.3
23.8
20.2
19.2
11.0
28.4
23.8
13.2
32.8
25.8
23.8
13.8
41.9
35.1
28.6
16.1
30
20
15
15
30
25
20
15
35
30
30
15
45
35
15
50
40
35
20
60
50
45
20
HACR circuit breaker in USA only
Wire length based on one way measurement with 2% voltage drop
Wire size based on 60°C copper conductor
All fuses Class RK-5
* NEUTRAL CONNECTION REQUIRED! All F Voltage (460 vac) units require a four wire power supply with neutral. ECM motor and optional circulating pumps
are rated 265 vac and are wired between one hot leg and neutral.
24
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Electrical Data
Units with High Head Variable Pump
Model
024
030
036
042
048
060
Voltage
Code
Voltage
Min/
Max
Voltage
RLA
Compressor
LRA
Qty
Pump
Motor
FLA
Fan
Motor
FLA
Total
Unit
FLA
Min
Circ
Amp
Max
Fuse/
HACR
G
H
G
H
G
H
G
H
G
H
G
H
208/230/60/1
208/230/60/3
208/230/60/1
208/230/60/3
208/230/60/1
208/230/60/3
208/230/60/1
208/230/60/3
208/230/60/1
208/230/60/3
208/230/60/1
208/230/60/3
197/252
197/252
197/252
197/252
197/252
197/252
197/252
197/252
197/252
197/252
197/252
197/252
11.7
6.5
14.7
8.7
18.0
11.6
21.8
14.2
25.0
14.0
28.9
16.5
58.3
55.4
73.0
58.0
83.0
73.0
96.0
88.0
104.0
83.1
152.9
110.0
1
1
1
1
1
1
1
1
1
1
1
1
1.7
1.7
1.7
1.7
1.7
1.7
1.7
1.7
1.7
1.7
1.7
1.7
3.9
3.9
3.9
3.9
3.9
3.9
5.2
5.2
5.2
5.2
6.9
6.9
17.3
12.1
18.7
14.3
20.9
17.2
24.8
21.1
28.1
20.9
35.7
25.1
20.2
13.7
22.0
16.5
24.7
20.1
29.3
24.7
33.4
24.4
42.5
29.2
30
20
35
25
40
30
45
35
50
35
60
45
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
Units with Standard Head Variable Pump
Model
024
030
036
042
048
Voltage
Code
Voltage
Voltage
Min/
Max
Compressor
RLA
LRA
G
H
G
H
G
H
G
H
G
H
208/230/60/1
208/230/60/3
208/230/60/1
208/230/60/3
208/230/60/1
208/230/60/3
208/230/60/1
208/230/60/3
208/230/60/1
208/230/60/3
197/252
197/252
197/252
197/252
197/252
197/252
197/252
197/252
197/252
197/252
11.7
6.5
14.7
8.7
18.0
11.6
21.8
14.2
25.0
14.0
58.3
55.4
73.0
58.0
83.0
73.0
96.0
88.0
104
83.1
Qty
Pump
Motor
FLA
Fan
Motor
FLA
Total
Unit
FLA
Min
Circ
Amp
Max
Fuse/
HACR
1
1
1
1
1
1
1
1
1
1
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
3.9
3.9
3.9
3.9
3.9
3.9
5.2
5.2
5.2
5.2
16.3
11.1
17.7
13.3
19.9
16.2
23.8
20.1
27.1
19.9
19.2
12.7
21.0
15.5
23.7
19.1
28.3
23.6
32.4
23.4
30
15
30
20
35
30
45
35
50
35
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
Low head variable pump not available for size 060 unit.
c l i m a t e m a s t e r. c o m
25
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Electrical - Power & Low Voltage Wiring
WARNING!
WARNING! Disconnect electrical power source to prevent
injury or death from electrical shock.
CAUTION!
Power Connection - Line voltage connection is made
by connecting the incoming line voltage wires to the “L”
side of the contractor as shown in the unit wiring diagram.
Consult electrical data tables for correct fuse size.
460 volt units require a neutral wire.
CAUTION! Use only copper conductors for field installed
electrical wiring. Unit terminals are not designed to accept
other types of conductors.
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.
Electrical - Line Voltage - All field installed wiring,
including electrical ground, must comply with the National
Electrical Code as well as all applicable local codes. Refer
to the unit electrical data for fuse sizes. Consult wiring
diagram for field connections that must be made by
the installing (or electrical) contractor. All final electrical
connections must be made with a length of flexible conduit
to minimize vibration and sound transmission to the
building.
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.
ELECTRICAL - LOW VOLTAGE WIRING
Thermostat Connections - The thermostat will be wired
to the DXM2 board located within the unit control box.
Refer to the unit wiring diagram for specific details.
Low Water Temperature Cutout Selection - The DXM2
control allows the field selection of low water (or waterantifreeze solution) temperature limit by clipping jumper
JW3, which changes the sensing temperature associated
with thermistor LT1. Note that the LT1 thermistor is
located on the refrigerant line between the coaxial heat
exchanger and expansion device (TXV). Therefore, LT1 is
sensing refrigerant temperature, not water temperature,
which is a better indication of how water flow rate/
temperature is affecting the refrigeration circuit.
26
The factory setting for LT1 is for systems using water
(30°F [-1.1°C] refrigerant temperature). In low water
temperature (extended range) applications with
antifreeze (most ground loops), jumper JW3 should be
clipped as shown in Figure 17 to change the setting to
10°F [-12.2°C] refrigerant temperature, a more suitable
temperature when using an antifreeze solution. All
ClimateMaster units operating with entering water
temperatures below 60°F [15.6°C] must include the
optional water/refrigerant circuit insulation package to
prevent internal condensation.
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Electrical - Low Voltage Wiring
Figure 17: LT1 Limit Setting
Figure 18: Accessory Wiring
LP
LP
LT1
LT1
LT2
LT2
RV
RV
CO
12 CO
Fault Status
Off
On
1 2 3 4
JW3
Off
On
1 2 3 4 5 6 7 8
S3
Off
On
Typical
Water
Valve
1 2 3 4 5 6 7 8
P7
RV
Relay
CCH
Relay
P2 Terminal Strip
1 24Vdc
S2
A0-1 A0-2
EH1
4 EH2
S1
P6
Comp
Relay
CCG
P10
P11
Gnd AO2 Gnd
P9
T1 T2 T2 T3 T3 T4 T4
CC
T5 T5 T6 T6
DXM2 PCB
JW3-LT1 jumper should be clipped for low temperature
(antifreeze) operation
Accessory Connections - A terminal paralleling the
compressor contactor coil has been provided on the DXM2
control. Terminal “A” is designed to control accessory
devices. Note: This terminal should be used only with 24
Volt signals and not line voltage. Terminal “A” is energized
with the compressor contactor.
The DXM2 controller includes two accessory relays ACC1
and ACC2. Each relay includes a normally open (NO) and
a normally closed (NC) contact. Accessory relays may be
configured to operate as shown in the tables below.
Accessory Relay 1 Configuration
DIP 2.1
ON
OFF
ON
ON
OFF
OFF
OFF
ON
DIP 2.2
ON
ON
OFF
ON
ON
OFF
OFF
OFF
DIP 2.3
ON
ON
ON
OFF
OFF
OFF
ON
OFF
ACC1 Relay Option
Cycle with fan
N/A for Residential Applications
Water valve – Slow opening
Outside air damper
ClimaDry option – Dehumidistat
ClimaDry option – Humidistat
N/A for Residential Applications
N/A for Residential Applications
All other DIP combinations are invalid
Accessory Relay 2 Configuration
DIP 2.4
ON
DIP 2.5
ON
DIP 2.6
ON
Cycle with compressor
OFF
ON
ON
N/A for Residential Applications
Water valve – Slow opening
Note: This valve can overheat the anticipator of an
electromechanical thermostat. Therefore, only relay or
triac based thermostats should be used.
Two-stage Units
Tranquility® 22 (TZ) two-stage units should be designed with
two parallel valves for ground water applications to limit
water use during first stage operation. For example, at 1.5
gpm/ton [2.0 l/m per kW], a TZ049 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 first stage 80-90% of the time, significant water savings
can be realized by using two parallel solenoid valves with two
flow regulators. In the example above, stage one solenoid
would be installed with a 4 gpm [15 l/m] flow regulator on
the outlet, while stage two would utilize a 2 gpm [8 l/m] flow
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 flow rate.
ACC2 Relay Option
ON
OFF
ON
OFF
OFF
ON
Humidifier
ON
ON
OFF
Outside air damper
All other DIP combinations are invalid
Unit Without vFlow™ - An external solenoid valve(s)
should be used on ground water installations to shut off
flow 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 flow 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.
Figure 21 illustrates piping for two-stage solenoid valves.
Review figures 18-20 for wiring of stage one valve. Stage
two valve should be wired between terminal “Y2” and
terminal “C.” NOTE: When EWT is below 50°F [10°C], 2
gpm per ton (2.6 l/m per kW) is required.
c l i m a t e m a s t e r. c o m
27
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Electrical - Low Voltage Wiring for non-vFlow™ Units Using External Motorized Water Valve
Water Valve Wiring
C
2
3
1
AVM
Taco Valve
Y1
Heater Switch
C
Figure 20: Taco SBV Valve Wiring
Y1
Figure 19: AVM Valve Wiring
Thermostat
Figure 21: Two-Stage Piping
Solenoid
Valve
Flow
Regulator
Stage 2
To Discharge
OUT
Stage 1
IN
From Water Source
NOTE: Shut-off valves, strainers and
other required components not shown.
28
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
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: Conventional 3 Heat / 2 Cool
Thermostat Connection to DXM2 Control
Thermostat
Compressor
Compressor Stage 2
Y1
Y2
Auxiliary Heat
W
Dehumidification
DH
Reversing Valve
Fan
O
24Vac Hot
24Vac Common
Fault LED
R
C
G
L
DXM2
Board
Y1
Y2
W
H
of the back plate. Mark the position of the back plate
mounting holes and drill holes with a 3/16” (5mm) bit.
Install supplied anchors and secure plate to the wall.
Thermostat wire must be 18 AWG wire. Representative
thermostat wiring is shown in Figures 22a-b however,
actual wiring connections should be determined from the
thermostat IOM and or unit wiring diagram. Practically
any heat pump thermostat will work with ClimateMaster
units, provided it has the correct number of heating and
cooling stages.
Figure 22b: Communicating Thermostat Connection
to DXM2 Control
iGate™ Thermostat
ATC32U**
DXM2
24Vac Common
C
Comm +
A+
24Vac Hot
R
Comm -
B-
Gnd
A+
B24V
O
G
R
C
AL1
OD
GND
ID
Outdoor
Sensor
(Optiona)
Remote Indoor
Sensor
(Optiona)
Notes:
1) ECM automatic dehumidification mode operates with dehumidification airflows
in the cooling mode when the dehumidification output from thermostat is active.
Normal heating and cooling airflows are not affected.
2) DXM2 board DIP switch S2-7 must be in the auto dehumidification mode for
automatic dehumidification
3) DH connection not possible with units with internal pump. Use ATC32U**.
4) Only use ATC Communicating Thermostat when using Humidifier (H Input) with
units with internal flow controller.
Field Wiring
Factory Wiring
c l i m a t e m a s t e r. c o m
29
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Blower Performance Data
TZ Standard Unit - No Reheat
Model
024
030
036
042
048
060
Max ESP
(in wg)
Fan
Motor
(hp)
Range
Default
750
575
650
500
750
575
350
750
0.75
1/2
Maximum
850
650
800
600
850
850
850
850
Minimum
600
450
600
450
600
450
300
650
Default
950
650
800
575
950
650
450
950
Maximum
1100
750
1000
700
1100
1100
1100
1100
Minimum
750
525
750
525
750
525
375
750
Default
1125
750
975
650
1125
750
525
1125
Maximum
1250
950
1200
800
1250
1250
1250
1250
Minimum
900
600
900
600
900
600
450
900
Default
1300
925
1125
825
1300
925
600
1300
Maximum
1475
1100
1400
1000
1475
1475
1475
1475
Minimum
1050
750
1050
750
1050
750
525
1050
0.5
0.6
0.6
0.75
0.75
1/2
1/2
3/4
3/4
1
Cooling Mode
Stg 2
Stg 1
Dehumid Mode
Stg 2
Stg 1
Heating Mode
Stg 2
Fan Only
Mode
Aux Emerg
Mode
Default
1500
1125
1300
975
1500
1125
700
1500
Maximum
1700
1300
1600
1200
1700
1700
1700
1700
Minimum
1200
900
1200
900
1200
900
600
1350
Default
1875
1500
1625
1300
1875
1500
875
1875
Maximum
2100
1700
2000
1600
2100
2100
2100
2100
Minimum
1500
1200
1500
1200
1500
1200
750
1500
Airflow is controlled within 5% up to the Max ESP shown with wet coil.
Performance shown is with wet coil and factory air filters.
30
Stg 1
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
ECM Blower Control
The ECM fan is controlled directly by the DXM2 control
board that converts thermostat inputs and CFM settings
to signals used by the ECM motor controller. To take full
advantage of the ECM motor features, a communicating
multi-stage thermostat should be used (ATC32U**).
The DXM2 control maintains a selectable operating
airflow [CFM] for each heat pump operating mode. For
each operating mode there are maximum and minimum
airflow limits. See the ECM Blower Performance tables
for the maximum, minimum, and default operating
airflows.
The ramp down feature is eliminated during an ESD
(Emergency Shut Down) situation. When the DXM2
ESD input is activated, the blower and all other control
outputs are immediately de-activated.
The ramp down feature (also known as the heating or
cooling “Off Delay”) is field selectable by the installer.
The allowable range is 0 to 255 seconds.
Special Note for AHRI Testing:
To achieve rated airflow for AHRI testing purposes, it is
necessary to change the CFM settings to rated airflow.
Airflow levels are selected using the configuration menus
of a communicating thermostat (ATC32U**) or diagnostic
tool (ACDU**). The configuration menus allow the
installer to independently select and adjust the operating
airflow for each of the operating modes. Air flow can be
selected in 25 CFM increments within the minimum and
maximum limits shown in the ECM Blower Performance
Table. The blower operating modes include:
• First Stage Cooling (Y1 & O)
• Second Stage Cooling (Y1, Y2, & O)
• First Stage Cooling in Dehumidification Mode
(Y1, O, & Dehumid)
• Second Stage Cooling in Dehumidification Mode
(Y1, Y2, O, & Dehumid)
• First Stage Heating (Y1)
• Second Stage Heating (Y1 & Y2)
• Third Stage (Auxiliary) Heating (Y1, Y2, & W)
• Emergency Heating (W with no Y1 or Y2)
• Fan (G with no Y1, Y2, or W)
It is highly recommended that ATC32U** or ACDU**
be used to set dehumidification mode electronically.
Dehumidification can NOT be selected when using a
non-communicating thermostat with a vFlow™ unit with
Internal Flow Controller (pump). For dehumidification
settings on other units using the non-communicating
stat, refer to DXM2 AOM (part #97B0003N15).
The ECM motor includes “soft start” and “ramp down”
features. The soft start feature is a gentle increase of
motor rpm at blower start up. This creates a much quieter
blower start cycle.
The ramp down feature allows the blower to slowly
decrease rpm to a full stop at the end of each blower
cycle. This creates a much quieter end to each blower
cycle and adds overall unit efficiency.
c l i m a t e m a s t e r. c o m
31
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Typical Wiring Diagram - Single Phase Unit
32
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Typical Wiring Diagram - Three Phase Unit
c l i m a t e m a s t e r. c o m
33
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Typical Wiring Diagram - 460 Volt Unit
34
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
DXM2 Controls
DXM2 Control - For detailed control information, see
DXM2 Application, Operation and Maintenance (AOM)
manual (part # 97B0003N15).
DIP Switches – Note: In the following field configuration
options, DIP switches should only be changed when
power is removed from the DXM2 control.
Field Selectable Inputs - Test mode: Test mode allows
the service technician to check the operation of the
control in a timely manner. By momentarily pressing the
TEST pushbutton, the DXM2 control enters a 20 minute
test mode period in which all time delays are sped up
15 times. Upon entering test mode, the status LED
display will change, either flashing rapidly to indicate the
control is in the test mode, or displaying a numeric flash
code representing the current airflow if an ECM blower
is connected and operating. For diagnostic ease at
conventional thermostats, the alarm relay will also cycle
during test mode. The alarm relay will cycle on and off
similar to the fault LED to indicate a code representing
the last fault, at the thermostat. Test mode can be exited
by pressing the TEST pushbutton for 3 seconds.
DIP Package #1 (S1) – DIP Package #1 has 8 switches
and provides the following setup selections:
Retry Mode – If the control is attempting a retry of a
fault, the fault LED will slow flash (slow flash = one flash
every 2 seconds) to indicate the control is in the process
of retrying.
Field Configuration Options – Note: In the following
field configuration options, jumper wires should be
clipped ONLY when power is removed from the DXM2
control.
Water coil low temperature limit setting: Jumper 3 (JW3LT1 Low Temp) provides field selection of temperature
limit setting for LT1 of 30°F or 10°F [-1°F or -12°C]
(refrigerant temperature).
Not Clipped = 30°F [-1°C]. Clipped = 10°F [-12°C].
Alarm relay setting: Jumper 1 (JW1-AL2 Dry) provides
field selection of the alarm relay terminal AL2 to
be jumpered to 24VAC or to be a dry contact (no
connection).
Not Clipped = AL2 connected to R. Clipped = AL2 dry
contact (no connection).
JUMPERS (Set at Factory)
A0-2: Configure Modulating Valve or Variable-Speed
Pump
Set A0-2 jumper (Figure 26a) to “IOV” if using Internal
Modulating Motorized Valve or “PMW” if using Internal
Variable-Speed Pump.
1.1 - Unit Performance Sentinel (UPS) disable: DIP Switch
1.1 provides field selection to disable the UPS feature.
On = Enabled. Off = Disabled.
1.2 - Compressor relay staging operation: DIP 1.2
provides selection of compressor relay staging operation.
The compressor relay can be selected to turn on with
a stage 1 or stage 2 call from the thermostat. This
is used with dual stage units (2 compressors where
2 DXM2 controls are being used) or with master/
slave applications. In master/slave applications,
each compressor and fan will stage according to
its appropriate DIP 1.2 setting. If set to stage 2, the
compressor will have a 3 second on-delay before
energizing during a Stage 2 demand. Also, if set for
stage 2, the alarm relay will NOT cycle during test mode.
On = Stage 1. Off = Stage 2.
1.3 - Thermostat type (heat pump or heat/cool): DIP 1.3
provides selection of thermostat type. Heat pump or
heat/cool thermostats can be selected. When in heat/
cool mode, Y1 is the input call for cooling stage 1; Y2 is
the input call for cooling stage 2; W1 is the input call for
heating stage 1; and O/W2 is the input call for heating
stage 2. In heat pump mode, Y1 is the input call for
compressor stage 1; Y2 is the input call for compressor
stage 2; W1 is the input call for heating stage 3 or
emergency heat; and O/W2 is the input call for reversing
valve (heating or cooling, depending upon DIP 1.4).
On = Heat Pump. Off = Heat/Cool.
1.4 - Thermostat type (O/B): DIP 1.4 provides selection of
thermostat type for reversing valve activation. Heat pump
thermostats with “O” output (reversing valve energized
for cooling) or “B” output (reversing valve energized for
heating) can be selected with DIP 1.4.
On = HP stat with “O” output for cooling. Off = HP stat
with “B” output for heating.
1.5 - Dehumidification mode: DIP 1.5 provides
selection of normal or dehumidification fan mode. In
dehumidification mode, the fan speed relay will remain
off during cooling stage 2. In normal mode, the fan
speed relay will turn on during cooling stage 2.
On = Normal fan mode. Off = Dehumidification mode.
c l i m a t e m a s t e r. c o m
35
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
DXM2 Controls
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 specified by the setting of DIP 1.8.
Below DIP 1.8 setting, the compressor is not used and
the control goes into emergency heat mode, staging
on EH1 and EH2 to provide heating.
On = normal. Off = Boilerless operation.
1.8 – Boilerless changeover temperature: DIP
1.8 provides selection of boilerless changeover
temperature setpoint. Note that the LT1 thermistor is
sensing refrigerant temperature between the coaxial
heat exchanger and the expansion device (TXV).
Therefore, the 50°F [10°C] setting is not 50°F [10°C]
water, but approximately 60°F [16°C] EWT.
On = 50°F [10°C]. Off = 40°F [16°C].
DIP Package #2 (S2) – A combination of dip switches
2.1, 2.2, 2.3, and 2.4, 2.5, 2.6 deliver configuration of
ACC1 and ACC2 relay options respectively. See Table
7a for description and functionality.
2.7 – Auto dehumidification fan mode or high
fan mode: DIP 2.7 provides selection of auto
dehumidification fan mode or high fan mode. In auto
dehumidification mode, the fan speed relay will remain
off during cooling stage 2 IF the H input is active. In
high fan mode, the fan enable and fan speed relays will
turn on when the H input is active.
On = Auto dehumidification mode (default). Off = High
fan mode.
2.8 – Special factory selection: DIP 2.8 provides special
factory selection. Normal position is “On”. Do not
change selection unless instructed to do so by the
factory.
Table 7a: Accessory DIP Switch Settings
DIP 2.1
DIP 2.2
DIP 2.3
ACC1 Relay Option
On
On
On
Cycle with fan
Off
On
On
Digital NSB
On
Off
On
Water Valve - slow opening
On
On
Off
OAD
Off
Off
Off
Reheat Option - Humidistat
Off
On
Off
Reheat Option - Dehumidistat
DIP 2.4
DIP 2.5
DIP 2.6
ACC2 Relay Option
On
On
On
Cycle with compressor
Off
On
On
Digital NSB
On
Off
On
Water Valve - slow opening
On
On
Off
OAD
(SSV[OLY+07JVTIPUH[PVUZHYLPU]HSPK
DIP Package #3 (S3)
– DIP Package #3 has 4 switches and provides the
following setup and operating selections:
3.1 – Communications configuration: DIP 3.1 provides
selection of the DXM2 operation in a communicating
system. The DXM2 may operate as the Master of certain
network configurations. In most configurations the
DXM2 will operate as a master device.
On = Communicating Master device (default). Off =
communicating Slave device.
3.2 – HWG Test Mode: DIP 3.2 provides forced operation
of the HWG pump output, activating the HWG pump
output for up to five minutes.
On = HWG test mode. Off = Normal HWG mode
(default).
3.3 – HWG Temperature: DIP 3.3 provides the selection
of the HWG operating setpoint.
On = 150°F [66°C]. Off = 125°F [52°C] (default).
3.4 – HWG Status: DIP 3.4 provides HWG operation
control.
On = HWG mode enabled. Off = HWG mode disabled
(default).
CAUTION!
CAUTION! Do not restart units without inspection and
remedy of faulting condition. Equipment damage may occur.
36
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
DXM2 Controls
Table 7b: LED and Alarm Relay Output Table
DMX2 CONTROLLER FAULT CODES
DMX2 Fault and Status LED Operation
with Test Mode Not Active
Fault LED
(Red)
Status LED
(Green)
Alarm Relay
DXM2 Is Non-Functional
Off
Off
Open
Normal Operation - No Active Communications
On
On
Open
Normal Operation - With Active Communications
Very Slow Flash
ON
Open
Control Is Currently In Fault Retry Mode
Slow Flash
-
Open
Control Is Currently Locked Out
Fast Flash
-
Closed
Control Is Currently In An Over/ Under Voltage Condition
Slow Flash
-
Open (Closed After 15 min)
Hot Water Mode Active
-
Slow Flash
Open
(NSB) Night Setback Condition Recognized
-
Flashing Code 2
-
(ESD) Emergency Shutdown Condition Recognized
-
Flashing Code 3
-
Invalid Thermostat Input Combination
-
Flashing Code 4
-
High Hot Water Temperature Lockout Active
-
Flashing Code 5
-
Hot Water Mode Sensor Fault Active
-
Flashing Code 6
-
DMX2 Fault LED and Status Operation
with Test Mode Active
Fault LED
(Red)
Status LED
(Green)
Alarm Relay
No Fault Since Power Up In Memory
Flashing Code 1
-
Cycling Code 1
High Pressure Fault In Memory
Flashing Code 2
-
Cycling Code 2
Low Pressure Fault In Memory
Flashing Code 3
-
Cycling Code 3
Low Temperature Protection 1 In Fault Memory
Flashing Code 4
-
Cycling Code 4
Low Temperature Protection 2 In Fault Memory
Flashing Code 5
-
Cycling Code 5
Condensate Overflow Fault In Memory
Flashing Code 6
-
Cycling Code 6
Over/Under Voltage Shutdown In Memory
Flashing Code 7
-
Cycling Code 7
UPS Warning In Memory
Flashing Code 8
-
Cycling Code 8
UPT Fault In Memory
Flashing Code 9
-
Cycling Code 9
ECM Air Flow Fault In Memory
Flashing Code 10
-
Cycling Code 10
Test Mode Active With No ECM Connected Or Operating
-
Fast Flash
-
Test Mode Active With ECM Operating
-
Flashing ECM Airflow
-
- Fast Flash = 2 flashes every 1 second.
- Slow Flash = 1 flash every 2 seconds.
- Very Slow Flash = 1 flash every 5 seconds.
- Numeric Codes = On pulse 1/3 second; Off pulse 1/3 second followed by a 10 second delay.
- ECM Airflow = 1 flash per 100 CFM; On pulse 1/3 second followed by a 10 second delay.
- Alarm Relay Open = alarm signal off; Alarm Relay Closed = alarm signal on.
c l i m a t e m a s t e r. c o m
37
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
DXM2 Layout and Connections
Service tool Communicating
connection stat connection
C
Gnd B-
A+ 24V
P4
N.O.
Com
Y2
Conventional
stat connection
N.C.
N.O.
P5
R
Y1
(240Vac)
(240Vac)
P1
Fan Enable
Fan Speed
W
O
G
P8
R
Test
C
12V
IN
OUT
Gnd
NC
P12
AL1
P2
AL2
R
Cabinet
temperature
sensor
(with variable
speed pump)
NSB
C
Alarm
Relay
Micro
U1
JW1
1
HP
HP
LP
LP
LT1
LT1
LT2
LT2
RV
RV
CO
12 CO
Fault Status
ESD
OVR
H
Off
A
JW3
1 2 3 4
Off
On
R
NO1
COM1
NO2
NC2
COM2
R
Factory Use
Accessory
relays refer
to DXM2 AOM
for configuration
NC1
Acc1
Relay
1 24Vdc
S2
A0-1 A0-2
COM
AO2 Gnd
Factory low
voltage molex
connection for
unit harness
Electric heat
connection
EH1
P6
Comp
Relay
CCG
P11
Water Coil
Low Temp
Limit Setting.
JWT-LT1 jumper
should be clipped
for low temp
(antifreeze)
operation
4 EH2
Acc2
Relay
COH
ECM Motor
Connection
P7
RV
Relay
CCH
Relay
S1
P10
P9
T1 T2 T2 T3 T3 T4 T4
CC
Configure
modulating valve
or variable
speed pump
T5 T5 T6 T6
Compressor Discharge
temperature
Entering Hot water
Temperature
Leaving
air temp
Leaving
water temp
Entering
water temp
Variable
speed pump
24V to compressor
second-stage solenoid
for Y2/full
load capacity
38
On
1 2 3 4 5 6 7 8
S3
P3
Off
1 2 3 4 5 6 7 8
Communications
and HWG
Settings
On
Test Button
to Speed up
Time Delays
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
Use 4 mounting screws
#6 sheet metal screw
1” long
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
DXM2 Controls
DXM2 Control Start-up Operation – The control will not
operate until all inputs and safety controls are checked
for normal conditions. The compressor will have a 5
minute anti-short cycle delay at power-up. The first time
after power-up that there is a call for compressor, the
compressor will follow a 5 to 80 second random start delay.
After the random start delay and anti-short cycle delay,
the compressor relay will be energized. On all subsequent
compressor calls, the random start delay is omitted.
2
Gnd B-
A+ 24V
P4
Conventional
T-stat signal
(Non-Communicating)
ECM fan
G
Fan only
G, Y1
Stage 1 heating1
G, Y1, Y2
Stage 2 heating1
G, Y1, Y2, W
Stage 3 heating1
G, W
Emergency heat
Stage 1 cooling2
G, Y1, Y2, O
Stage 2 cooling2
(240Vac)
N.C.
N.O.
N.O.
Com
Fan Enable
Unit
G, Y1, O
(240Vac)
P5
Pust test button to enter Test
Mode and speed-up timing and
delays for 20 minutes.
Table 7c: Unit Operation
1
Figure 26b: Test Mode Button
Fan Speed
P8
Test
P12
12V
IN
OUT
Gnd
NC
Stage 1 = 1st stage compressor, 1st stage fan operation
Stage 2 = 2nd stage compressor, 2nd stage fan operation
Stage 3 = 2nd stage compressor, auxiliary electric heat, 3rd stage fan operation
Stage 1 = 1st stage compressor, 1st stage fan operation, reversing valve
Stage 2 = 2nd stage compressor, 2nd stage fan operation, reversing valve
c l i m a t e m a s t e r. c o m
39
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
DXM2 Controls
Table 8: Nominal Resistance at Various Temperatures
40
Temp (ºC)
Temp (ºF)
-17.8
-17.5
-16.9
-12
-11
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
0.0
0.5
1.5
10.4
12.2
14.0
15.8
17.6
19.4
21.2
23.0
24.8
26.6
28.4
30.2
32.0
33.8
35.6
37.4
39.2
41.0
42.8
44.6
46.4
48.2
50.0
51.8
53.6
55.4
57.2
59.0
60.8
62.6
64.4
66.2
68.0
69.8
71.6
73.4
75.2
77.0
78.8
80.6
82.4
84.2
86.0
87.8
89.6
91.4
93.2
95.0
96.8
98.6
100.4
102.2
104.0
105.8
107.6
109.4
111.2
113.0
114.8
116.6
118.4
120.2
122.0
123.8
125.6
127.4
129.2
Resistance
(kOhm)
85.34
84.00
81.38
61.70
58.40
55.30
52.38
49.64
47.05
44.61
42.32
40.15
38.11
36.18
34.37
32.65
31.03
29.50
28.05
26.69
25.39
24.17
23.02
21.92
20.88
19.90
18.97
18.09
17.26
16.46
15.71
15.00
14.32
13.68
13.07
12.49
11.94
11.42
10.92
10.45
10.00
9.57
9.16
8.78
8.41
8.06
7.72
7.40
7.10
6.81
6.53
6.27
6.01
5.77
5.54
5.33
5.12
4.92
4.72
4.54
4.37
4.20
4.04
3.89
3.74
3.60
3.47
3.34
3.22
3.10
Temp (ºC) Temp (ºF)
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
131.0
132.8
134.6
136.4
138.2
140.0
141.8
143.6
145.4
147.2
149.0
150.8
152.6
154.4
156.2
158.0
159.8
161.6
163.4
165.2
167.0
168.8
170.6
172.4
174.2
176.0
177.8
179.6
181.4
183.2
185.0
186.8
188.6
190.4
192.2
194.0
195.8
197.6
199.4
201.2
203.0
204.8
206.6
208.4
210.2
212.0
213.8
215.6
217.4
219.2
221.0
222.8
224.6
226.4
228.2
230.0
231.8
233.6
235.4
237.2
239.0
240.8
242.6
244.4
246.2
248.0
249.8
251.6
253.4
Resistance
(kOhm)
2.99
2.88
2.77
2.67
2.58
2.49
2.40
2.32
2.23
2.16
2.08
2.01
1.94
1.88
1.81
1.75
1.69
1.64
1.58
1.53
1.48
1.43
1.39
1.34
1.30
1.26
1.22
1.18
1.14
1.10
1.07
1.04
1.01
0.97
0.94
0.92
0.89
0.86
0.84
0.81
0.79
0.76
0.74
0.72
0.70
0.68
0.66
0.64
0.62
0.60
0.59
0.57
0.55
0.54
0.52
0.51
0.50
0.48
0.47
0.46
0.44
0.43
0.42
0.41
0.40
0.39
0.38
0.37
0.36
DXM2 Thermostat Details
Thermostat Compatibility – Most heat pump and heat/
cool thermostats can be used with the DXM2, as well as
ClimateMaster communicating thermostats (ATC32).
Anticipation Leakage Current – Maximum leakage
current for “Y1” is 50 mA and for “W” is 20mA. Triacs
can be used if leakage current is less than above.
Thermostats with anticipators can be used if anticipation
current is less than that specified above.
Thermostat Signals • “Y1, Y2, W1, O” and “G” have a 1 second recognition
time when being activated or being removed.
• “R” and “C” are from the transformer.
• “AL1” and “AL2” originate from the Alarm Relay.
• “A+” and “B-” are for a communicating thermostat.
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Unit Starting and Operating Conditions
Operating Limits
Environment – Units are designed for indoor installation only. Never install units in areas subject to freezing or where
humidity levels could cause cabinet condensation (such as unconditioned spaces subject to 100% outside air).
Power Supply – A voltage variation of +/– 10% of nameplate utilization voltage is acceptable.
Determination of operating limits is dependent primarily upon three factors: 1) return air temperature. 2) water
temperature, and 3) ambient temperature. When any one of these factors is at minimum or maximum levels, the
other two factors should be at normal levels to ensure proper unit operation. Extreme variations in temperature and
humidity and/or corrosive water or air will adversely affect unit performance, reliability, and service life. Consult Table
9a for operating limits.
Table 9a: Operating Limits
Operating Limits
TZ
Cooling
Heating
45ºF [7ºC]
80.6ºF [27ºC]
130ºF [54.4ºC]
65/45ºF [18/7ºC]
80.6/66.2ºF [27/19ºC]
100/75ºF [38/24ºC]
39ºF [4ºC]
68ºF [20ºC]
85ºF [29ºC]
50ºF [10ºC]
68ºF [20ºC]
80ºF [27ºC]
Air Limits
Min. ambient air, DB
Rated ambient, DB
Max. ambient air, DB
Min. entering air, DB/WB
Rated entering air, DB/WB
Max. entering air, DB/WB
Water Limits
Min. entering water
Normal entering water
Max. entering water
Normal Water Flow
20ºF [-6.7ºC]
*20ºF [-6.7ºC]
30-80ºF [-1.1 – 26.7ºC]
50 – 110ºF [10 – 43.3ºC]
120ºF [48.9ºC]
*120ºF [48.9ºC]
1.5 to 3.0 gpm / ton
[1.6 to 3.2 l/m per kW]
*When unit is equipped with Internal Secondary Pump option (code 7 in position eleven of the unit model
number) the minimum entering water temperature is 30ºF [-1.1ºC] and the maximum entering heating water
is 90ºF [32.2ºC].
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.
Table 9b: Starting Limits
Operating Limits
TZ
Cooling
Heating
45ºF [7ºC]
80.6ºF [27ºC]
130ºF [54.4ºC]
60/45ºF [16/7ºC]
80.6/66.2ºF [27/19ºC]
100/75ºF [38/24ºC]
39ºF [4ºC]
68ºF [20ºC]
85ºF [29ºC]
50ºF [10ºC]
68ºF [20ºC]
80ºF [27ºC]
Air Limits
Min. ambient air, DB
Rated ambient, DB
Max. ambient air, DB
Min. entering air, DB/WB
Rated entering air, DB/WB
Max. entering air, DB/WB
Water Limits
Min. entering water
Normal entering water
Max. entering water
Normal Water Flow
20ºF [-6.7ºC]
*20ºF [-6.7ºC]
30-80ºF [-1.1 – 26.7ºC]
50 – 110ºF [10 – 43.3ºC]
120ºF [48.9ºC]
*120ºF [48.9ºC]
1.5 to 3.0 gpm / ton
[1.6 to 3.2 l/m per kW]
*When unit is equipped with Internal Secondary Pump option (code 7 in position eleven of the unit model
number) the minimum entering water temperature is 30ºF [-1.1ºC] and the maximum entering heating water
is 90ºF [32.2ºC].
c l i m a t e m a s t e r. c o m
41
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Piping System Cleaning and Flushing
Piping System Cleaning and Flushing - Cleaning and
flushing the WLHP piping system is the single most
important step to ensure proper start-up and continued
efficient operation of the system.
DO NOT 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.
Follow the instructions below to properly clean and flush
the system:
Note: The manufacturer strongly recommends all
piping connections, both internal and external to the
unit, be pressure tested by an appropriate method
prior to any finishing of the interior space or before
access to all connections is limited. Test pressure may
not exceed the maximum allowable pressure for the
unit and all components within the water system.
The manufacturer will not be responsible or liable
for damages from water leaks due to inadequate or
lack of a pressurized leak test, or damages caused
by exceeding the maximum pressure rating during
installation.
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
flexible hose.
3. Open all air vents. Fill the system with water. DO NOT
allow system to overflow. Bleed all air from the system.
Pressurize and check the system for leaks and repair as
appropriate.
4. Verify that all strainers are in place (ClimateMaster
recommends a strainer with a #20 stainless steel
wire mesh). Start the pumps, and systematically
check each vent to ensure that all air is bled from the
system.
5. Verify that make-up water is available. Adjust make-up
water as required to replace the air which was bled
from the system. Check and adjust the water/air level
in the expansion tank.
6. Set the boiler to raise the loop temperature to
approximately 86°F [30°C]. Open a drain at the
lowest point in the system. Adjust the make-up water
replacement rate to equal the rate of bleed.
7. Refill 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. Refill 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, flushed,
refilled and bled, check the main system panels,
safety cutouts and alarms. Set the controls to properly
maintain loop temperatures.
42
Internal Modulating Motorized Valve Positions
Sizes 024-036
Closed
Sizes 048-060
Closed
/RFN5HOHDVH
Open
Open
To manually open the internal modulating motorized
water valve in TZ026 – 049 push down on the handle to
unlock it. Then rotate the handle to the open position
as shown in. This fully opens the valve for flushing.
Once flushing is complete, return the valve handle to its
normally closed position.
To manually open the internal modulating motorized
water valve in TZ064 – 072, push down on the lock release
button while turning the handle to the open position
as shown. This fully opens the valve for flushing. Once
flushing is complete, press the lock release again and
return the valve handle to its normally closed position.
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Unit and System Checkout
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 CPVC piping, may cause failure of
the PVC/CPVC. PVC/CPVC piping should never be used
as supply or return water piping with water source heat
pump products containing HFC-410A as system failures and
property damage may result.
Unit and System Checkout
BEFORE POWERING SYSTEM, please check the following:
UNIT CHECKOUT
Balancing/shutoff valves: Ensure that all isolation
valves are open and water control valves are wired.
Line voltage and wiring: Verify that voltage is within
an acceptable range for the unit and wiring and
fuses/breakers are properly sized. Verify that low
voltage wiring is complete.
Unit control transformer: Ensure that transformer has
the properly selected voltage tap.
Entering water and air: Ensure that entering water
and air temperatures are within operating limits of
Table 9a-b.
Low water temperature cutout: Verify that low water
temperature cut-out on the DXM2 control is properly
set.
Unit fan: Manually rotate fan to verify free rotation
and ensure that blower wheel is secured to the
motor shaft. Be sure to remove any shipping
supports if needed. DO NOT oil motors upon startup. Fan motors are pre-oiled at the factory. Check
unit fan speed selection and compare to design
requirements.
Condensate line: Verify that condensate line is open
and properly pitched toward drain.
Water flow balancing: Record inlet and outlet water
temperatures for each heat pump upon startup.
This check can eliminate nuisance trip outs and
high velocity water flow that could erode heat
exchangers.
Unit air coil and filters: Ensure that filter is clean and
accessible. Clean air coil of all manufacturing oils.
Unit controls: Verify that DXM2 field selection
options are properly set.
System water temperature: Check water temperature
for proper range and also verify heating and cooling
set points for proper operation.
System pH: Check and adjust water pH if necessary
to maintain a level between 6 and 8.5. Proper pH
promotes longevity of hoses and fittings (see table 3).
System flushing: Verify that all hoses are connected
end to end when flushing to ensure that debris
bypasses the unit heat exchanger, water valves and
other components. Water used in the system must be
potable quality initially and clean of dirt, piping slag,
and strong chemical cleaning agents. Verify that all
air is purged from the system. Air in the system can
cause poor operation or system corrosion.
Cooling tower/boiler: Check equipment for proper
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 flow prior to engaging the compressor. Freezing
of the coax or water lines can permanently damage the heat
pump.
CAUTION!
CAUTION! To avoid equipment damage, DO NOT
leave system filled in a building without heat during the
winter unless antifreeze is added to the water loop. Heat
exchangers never fully drain by themselves and will freeze
unless winterized with antifreeze.
NOTICE! Failure to remove shipping brackets from
spring-mounted compressors will cause excessive
noise, and could cause component failure due to
added vibration.
c l i m a t e m a s t e r. c o m
43
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Unit Start-Up Procedure
Unit Start-up Procedure
1. Turn the thermostat fan position to “ON”. Blower
should start.
2. Balance air flow at registers.
3. Adjust all valves to their full open positions. Turn on
the line power to all heat pumps.
4. Room temperature should be within the minimummaximum ranges of table 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 five minute time delay in
the control circuit that can be eliminated by
pushing the test button on the DXM2 control
board.
c. Verify that the compressor is on and that the water
flow 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
filled 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
flow 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 flow 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 [8°C and 14°C].
g. Turn thermostat to “OFF” position. A hissing noise
indicates proper functioning of the reversing valve.
44
6. Allow five (5) minutes between tests for pressure to
equalize before beginning heating test.
a. Adjust the thermostat to the lowest setting. Place
the thermostat mode switch in the “HEAT” position.
b. Slowly raise the thermostat to a higher
temperature until the compressor activates.
c. Check for warm air delivery within a few minutes
after the unit has begun to operate.
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 flow 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 flow rate in U.S.
GPM, determined by comparing the pressure drop
across the heat exchanger to table 10. In S-I units,
the formula is as follows: HE (kW) = TD x l/s x 4.18.
e. Check air temperature rise across the air coil when
compressor is operating. Air temperature rise
should be between 20°F and 30°F [11°C and 17°C].
f. Check for vibration, noise, and water leaks.
7. If unit fails to operate, perform troubleshooting analysis
(see troubleshooting section). If the check described fails
to reveal the problem and the unit still does not operate,
contact a trained service technician to ensure proper
diagnosis and repair of the equipment.
8. When testing is complete, set system to maintain
desired comfort level.
Note: If performance during any mode appears
abnormal, refer to the DXM2 section or
troubleshooting section of this manual. To obtain
maximum performance, the air coil should be cleaned
before start-up. A 10% solution of dishwasher
detergent and water is recommended.
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Unit Operating Conditions
Table 10: TZ Coax Water Pressure Drop
WARNING!
Pressure Drop (psi)
Model
GPM
30°F*
50°F
70°F
90°F
024
Rev B
2.5
3.0
3.8
4.5
6.0
0.8
1.2
1.8
2.7
3.9
0.3
0.6
1.1
1.6
2.8
0.2
0.5
0.9
1.2
2.2
0.2
0.5
0.8
1.2
2.0
030
3.0
3.8
4.5
6.0
7.5
1.7
2.3
2.7
3.8
5.1
0.9
1.2
1.6
2.4
3.5
0.8
1.1
1.4
2.2
3.1
0.8
1.1
1.4
2.1
2.9
036
Rev B
4.0
6.0
6.8
8.0
9.0
0.6
1.8
2.3
3.2
4.0
0.1
1.0
1.5
2.2
2.9
0.1
0.7
1.1
1.8
2.4
0.1
0.7
1.1
1.7
2.3
042
3.8
5.3
7.5
7.9
10.5
1.7
2.7
4.5
4.8
7.4
1.0
1.8
3.1
3.4
5.4
0.9
1.6
2.8
3.1
4.9
0.9
1.5
2.6
2.9
4.7
048
4.5
6.0
6.8
9.0
12.0
1.4
2.0
2.5
4.0
6.5
1.1
1.7
2.1
3.4
5.5
0.9
1.4
1.8
3.0
4.9
0.8
1.3
1.7
2.7
4.5
060
Rev B
6.0
7.5
9.0
12.0
15.0
1.2
2.1
3.1
5.4
8.1
0.9
1.7
2.5
4.6
7.0
0.8
1.5
2.3
4.2
6.4
0.8
1.4
2.2
3.9
6.1
WARNING! When the disconnect switch is closed, high
voltage is present in some areas of the electrical panel.
Exercise caution when working with energized equipment.
CAUTION!
CAUTION! Verify that ALL water control valves are open and
allow water flow prior to engaging the compressor. Freezing
of the coax or water lines can permanently damage the heat
pump.
Operating Pressure/Temperature tables include the
following notes:
• Airflow is at nominal (rated) conditions;
• Entering air is based upon 70°F [21°C] DB in heating
and 80/67°F [27/19°C] in cooling;
• Subcooling is based upon head pressure at
compressor service port;
• Cooling air and water values can vary greatly with
changes in humidity level.
* Based on 15% methanol antifreeze solution
c l i m a t e m a s t e r. c o m
45
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Unit Operating Conditions
Table 11: TZ Series Typical Unit Operating Pressures and Temperatures (60Hz – I-P Units)
024
Full Load Cooling - without HWG active
Entering
Water
Temp °F
Water
Flow
GPM/ton
30*
1.5
2.25
3
50
70
90
110
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Superheat
Subcooling
Water
Temp Drop
°F
Full Load Heating - without HWG active
Air Temp
Drop °F
DB
1.5
2.25
3
1.5
2.25
3
1.5
2.25
3
127-137
125-135
124-134
132-142
131-141
130-140
140-150
139-149
138-148
244-264
240-160
237-257
322-342
325-345
329-349
410-430
427-447
444-464
9-14
10-15
11-16
8-13
9-14
9-14
6-11
6-11
7-12
13-18
11-16
8-13
14-19
12-17
10-15
15-20
13-18
11-16
20.6-22.6
15.6-17.6
11.4-13.4
20-22
14.8-16.8
9.6-11.6
19.9-21.9
14.6-16.6
9.4-11.4
19-25
19-25
19-25
18-24
18-24
18-24
17-23
17-23
17-23
1.5
2.25
3
144-154
143-153
143-153
490-510
500-520
513-533
5-10
5-10
5-10
16-21
14-19
13-18
19.8-21.8
14.45-16.45
9-11
16-22
16-22
16-22
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Superheat
Subcooling
Water
Temp Drop
°F
Air Temp
Rise °F
DB
67-77
72-82
77-87
305-325
310-330
314-334
6-11
6-11
6-11
6-11
7-12
7-12
8.0-10.0
5.9-7.9
3.8-5.8
19-25
19-25
19-25
98-108
104-114
111-121
129-139
137-147
145-155
162-172
170-180
178-188
346-366
350-370
355-375
384-404
390-410
397-417
421-441
430-450
440-460
9-14
9-14
9-14
11-16
11-16
11-16
14-19
14-19
14-19
8-13
7-12
6-11
10-15
7-12
6-11
8-13
8-13
8-13
11.1-13.1
8.1-10.1
5.2-7.2
14.4-16.4
10.5-12.5
6.5-8.5
17.5-19.5
12.7-14.7
9-11
26-32
26-32
27-33
32-38
33-39
34-40
39-45
39-45
41-47
*Based on 15% Methanol antifreeze solution
030
Full Load Cooling - without HWG active
Entering
Water
Temp °F
Water
Flow
GPM/ton
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
30*
1.5
2.25
3
50
1.5
2.25
3
122-132
121-131
121-131
240-260
213-233
186-206
10-15
11-16
11-16
11-16
9-14
7-12
19.5-21.5
15.0-17.0
10.3-12.3
70
1.5
2.25
3
122-132
121-131
121-131
316-336
298-318
280-300
9-14
9-14
9-14
12-17
11-16
9-14
90
1.5
2.25
3
133-143
133-143
132-142
438-458
420-440
401-421
8-13
8-13
8-13
110
1.5
2.25
3
137-147
136-146
135-145
507-527
490-510
473-493
6-11
7-12
7-12
Superheat
Full Load Heating - without HWG active
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Superheat
Subcooling
Water
Temp Drop
°F
Air Temp
Rise °F
DB
65-75
67-77
72-82
311-331
315-335
319-339
9-14
9-14
9-14
9-14
9-14
9-14
8.0-10.0
6.2-8.2
4.3-6.3
19-24
20-25
21-26
18-23
19-24
19-24
95-105
100-110
105-115
353-373
358-378
362-382
11-16
11-16
12-17
10-15
10-15
10-15
10.5-12.5
8.2-10.2
5.8-7.8
26-31
26-31
27-32
18.8-20.8
14.3-16.3
9.8-11.8
17-22
17-22
17-22
124-134
130-140
137-147
390-410
398-418
405-425
13-18
14-19
15-20
10-15
9-14
9-14
13.5-15.5
10.5-12.5
7.5-9.5
33-38
33-38
34-39
14-19
13-18
11-16
17.8-19.8
13.5-15.5
9.2-11.2
15-20
15-20
15-20
156-166
163-173
170-180
430-450
459-479
448-468
16-21
17-22
18-23
8-13
8-13
8-13
16.5-18.5
12.8-14.8
9.0-11.0
37-42
39-44
40-45
16-21
14-19
13-18
17.2-19.2
13.0-15.0
8.8-10.8
15-20
15-20
15-20
Subcooling
Water
Temp Rise
°F
Air Temp
Drop °F
DB
*Based on 15% Methanol antifreeze solution
036
Full Load Cooling - without HWG active
Entering
Water
Temp °F
Water
Flow
GPM/ton
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
30*
1.5
2.25
3
50
1.5
2.25
3
123-133
122-132
121-131
232-252
232-252
232-252
11-16
12-17
13-18
12-17
10-15
7-12
19.9-21.9
14.3-16.3
9.6-11.6
70
1.5
2.25
3
128-138
124-134
119-129
310-330
290-310
270-290
10-15
10-15
11-16
11-16
10-15
8-13
90
1.5
2.25
3
135-145
134-144
132-142
420-440
410-430
390-410
7-12
8-13
8-13
110
1.5
2.25
3
139-149
138-148
137-147
490-510
480-500
470-490
6-11
6-11
6-11
Superheat
Full Load Heating - without HWG active
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Superheat
Subcooling
Water
Temp Drop
°F
Air Temp
Rise °F
DB
60-70
65-75
70-80
315-335
319-339
325-345
6-11
6-11
6-11
11-16
11-16
11-16
10.0-12.0
6.7-8.7
3.4-5.4
18-23
19-24
20-25
19-24
19-24
19-24
88-98
96-106
105-115
353-373
361-381
370-390
9-14
10-15
10-15
14-19
14-19
14-19
13.2-15.2
9.0-11.0
4.8-6.8
24-29
25-30
26-31
19-21
14.1-16.1
9.2-11.2
18-23
18-23
18-23
116-126
128-138
139-149
390-410
406-426
419-439
11-16
12-17
14-19
15-20
15-20
15-20
17.0-19.0
11.6-13.6
6.1-8.1
29-34
31-36
32-37
11-16
9-14
8-13
18.1-20.1
13.4-15.4
8.7-10.7
17-22
17-22
17-22
148-158
160-170
173-183
436-456
451-471
466-486
14-19
16-21
17-22
15-20
15-20
15-20
20.9-22.9
14.2-16.2
7.4-9.4
35-40
37-42
39-44
10-15
9-14
8-13
17.8-19.8
13.2-15.2
8.6-10.6
16-21
16-21
16-21
Subcooling
Water
Temp Drop
°F
Air Temp
Drop °F
DB
*Based on 15% Methanol antifreeze solution
46
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Unit Operating Conditions
042
Entering
Water
Temp °F
Water
Flow
GPM/ton
Full Load Cooling - without HWG active
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
1.5
2.25
3
1.5
121-131
230-250
50
2.25
120-130
200-240
3
120-130
164-184
1.5
127-137
305-325
70
2.25
125-135
290-310
125-135
263-283
3
1.5
133-143
426-446
90
2.25
132-142
406-426
3
132-142
390-410
1.5
137-147
494-514
110
2.25
136-146
477-497
3
136-146
460-480
*Based on 15% Methanol antifreeze solution
Superheat
Subcooling
Water
Temp Rise
°F
Full Load Heating - without HWG active
Air Temp
Drop °F DB
30*
048
Entering
Water
Temp °F
Water
Flow
GPM/ton
10-15
11-16
11-16
8-13
9-13
10-15
7-12
7-12
7-12
5-10
6-11
6-11
10-15
8-13
6-11
10-15
9-14
7-12
11-16
9-14
8-13
11-16
10-15
8-13
20.5-22.5
15.2-17.2
9.8-11.8
19.8-21.8
14.7-16.7
9.5-11.5
19-21
14-16
9-11
18-20
14-16
9-11
22-27
22-27
22-27
20-25
21-26
21-26
19-24
19-24
19-24
18-23
18-23
18-23
Discharge
Pressure
PSIG
1.5
2.25
3
1.5
124-134
250-270
50
2.25
123-133
212-232
3
121-131
173-193
1.5
129-139
334-354
70
2.25
128-138
309-329
284-304
3
127-137
135-145
470-490
1.5
90
2.25
134-144
446-466
132-142
422-442
3
1.5
138-148
548-568
110
2.25
138-148
526-546
3
137-147
505-525
*Based on 15% Methanol antifreeze solution
060
Water
Flow
GPM/ton
Discharge
Pressure
PSIG
Superheat
Subcooling
Water
Temp Drop
°F
Air Temp
Rise °F
DB
64-74
67-77
71-81
95-105
100-110
104-114
124-134
131-141
138-148
157-167
164-174
172-182
314-334
317-337
321-341
351-371
356-376
361-381
386-406
390-410
400-420
423-443
432-452
441-461
6-11
6-11
7-12
8-13
9-14
10-15
11-16
12-17
13-18
13-18
15-20
16-21
9-14
9-14
9-14
9-14
9-14
9-14
8-13
8-13
7-12
5-10
5-10
5-10
8.0-10.0
6.0-8.0
4.0-6.0
10.7-12.7
8.1-10.1
5.4-7.4
13.8-15.8
10.4-12.4
7.0-9.0
16.8-18.8
12.7-14.7
8.5-10.5
20-25
20-25
21-26
26-31
27-32
27-32
32-37
33-37
34-39
38-43
40-45
41-46
Full Load Cooling - without HWG active
Suction
Pressure
PSIG
Superheat
Subcooling
Water
Temp Drop
°F
Full Load Heating - without HWG active
Air Temp
Drop °F DB
30*
Entering
Water
Temp °F
Suction
Pressure
PSIG
11-16
12-17
13-18
9-14
10-15
10-15
7-12
7-12
8-13
6-11
6-11
6-11
13-18
10-15
7-12
16-21
13-18
10-15
20-25
17-22
15-20
22-27
19-24
17-22
20.1-22.1
14.8-16.8
9.5-11.5
19.6-21.6
14.4-16.4
9.3-11.3
18.9-20.9
13.8-15.8
8.8-10.8
18.6-20.6
13.6-15.6
8.6-10.6
19-24
19-24
19-24
18-23
18-23
18-23
16-21
16-21
16-21
15-20
15-20
15-20
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Superheat
Subcooling
Water
Temp Drop
°F
Air Temp
Rise °F
DB
61-71
64-74
68-78
88-98
94-104
100-110
117-127
125-135
133-143
150-160
158-168
166-176
290-310
293-313
296-316
319-339
324-344
330-350
349-369
357-377
365-385
384-404
391-411
399-419
9-14
9-14
10-15
11-16
11-16
12-17
13-18
14-19
15-20
15-20
16-21
17-22
5-10
5-10
5-10
6-11
6-11
6-11
5-10
5-10
4-11
3-8
2-7
2-7
7.7-9.7
5.7-7.7
3.7-5.7
10.3-12.3
7.8-9.8
5.3-7.3
13.4-15.4
10.2-12.2
6.9-8.9
16.6-18.6
12.6-14.6
8.5-10.5
18-23
18-23
18-23
24-29
25-30
25-30
29-34
30-35
31-36
35-40
36-41
37-42
Full Load Cooling - without HWG active
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
1.5
2.25
3
1.5
120-130
225-245
50
2.25
120-130
222-242
3
118-128
220-240
1.5
124-134
300-320
278-298
70
2.25
124-134
123-133
256-276
3
1.5
130-140
420-440
90
2.25
129-139
400-420
3
129-139
390-410
1.5
133-143
495-515
110
2.25
132-142
475-495
3
132-142
454-474
*Based on 15% Methanol antifreeze solution
Superheat
Subcooling
Water
Temp Drop
°F
Full Load Heating - without HWG active
Air Temp
Drop °F DB
30*
9-14
9-14
9-14
8-13
8-13
8-13
7-12
7-12
7-12
6-11
6-11
6-11
13-18
10-15
9-14
14-19
11-16
9-14
16-21
12-17
9-14
16-21
13-18
9-14
21.8-23.8
14.7-16.7
8.7-10.7
19.9-21.9
14.1-16.1
8.3-10.3
19.0-21.0
13.4-15.4
7.9-9.9
18.5-20.5
13.1-15.1
7.6-9.6
20-25
20-25
20-25
19-24
19-24
19-24
17-22
17-22
17-22
16-21
16-21
16-21
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Superheat
Subcooling
Water
Temp Drop
°F
Air Temp
Rise °F
DB
64-74
68-78
71-81
94-104
100-110
105-115
122-132
130-140
137-147
155-165
165-175
175-185
309-329
313-333
317-337
343-363
350-270
356-376
377-397
386-406
394-414
412-432
423-443
423-443
7-12
7-12
8-13
9-14
10-15
10-15
11-16
12-17
13-18
14-19
15-20
16-21
10-15
10-15
10-15
12-18
11-16
10-15
9-14
8-13
7-12
6-11
5-10
4-9
8.4-10.4
6.0-8.0
3.6-5.6
11.3-13.3
8.2-10.2
5.0-8.0
14.2-16.2
10.3-12.3
6.5-8.5
17.2-19.2
12.6-14.6
7.9-9.9
19-24
20-25
20-25
25-30
26-31
26-31
31-36
31-36
33-38
36-41
37-42
39-44
Table 12: Water Temperature Change Through Heat Exchanger
Water Flow, gpm [l/m]
Rise, Cooling
°F, [°C]
Drop, Heating
°F, [°C]
For Closed Loop: Ground Source or Closed Loop
Systems at 3 gpm per ton [3.2 l/m per kW]
9 - 12
[5 - 6.7]
4-8
[2.2 - 4.4]
For Open Loop: Ground Water
Systems at 1.5 gpm per ton [1.6 l/m per kW]
20 - 26
[11.1 - 14.4]
10 - 17
[5.6 - 9.4]
c l i m a t e m a s t e r. c o m
47
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Preventive Maintenance
Water Coil Maintenance - (Direct ground water
applications only) If the system is installed in an area with
a known high mineral content (125 P.P.M. or greater) in
the water, it is best to establish a periodic maintenance
schedule with the owner so the coil can be checked
regularly. Consult the well water applications section
of this manual for a more detailed water coil material
selection. Should periodic coil cleaning be necessary, use
standard coil cleaning procedures, which are compatible
with the heat exchanger material and copper water
lines. Generally, the more water flowing through the unit,
the less chance for scaling. Therefore, 1.5 gpm per ton
[1.6 l/m per kW] is recommended as a minimum flow.
Minimum flow rate for entering water temperatures
below 50°F [10°C] is 2.0 gpm per ton [2.2 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 flowing
through the unit, the less chance for scaling. However,
flow rates over 3 gpm per ton (3.9 l/m per kW) can
produce water (or debris) velocities that can erode the
heat exchanger wall and ultimately produce leaks.
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 filter.
Washable, high efficiency, electrostatic filters, when dirty,
can exhibit a very high pressure drop for the fan motor
and reduce air flow, resulting in poor performance. It is
especially important to provide consistent washing of
48
these filters (in the opposite direction of the normal air
flow) once per month using a high pressure wash similar
to those found at self-serve car washes.
Condensate Drain - In areas where airborne bacteria
may produce a “slimy” substance in the drain pan, it may
be necessary to treat the drain pan chemically with an
algaecide approximately every three months to minimize
the problem. The condensate pan may also need to be
cleaned periodically to ensure indoor air quality. The
condensate drain can pick up lint and dirt, especially with
dirty filters. Inspect the drain twice a year to avoid the
possibility of plugging and eventual overflow.
Compressor - Conduct annual amperage checks to
ensure that amp draw is no more than 10% greater than
indicated on the serial plate data.
Fan Motors - All units have lubricated fan motors. Fan
motors should never be lubricated unless obvious, dry
operation is suspected. Periodic maintenance oiling is
not recommended, as it will result in dirt accumulating in
the excess oil and cause eventual motor failure. Conduct
annual dry operation check and amperage check to
ensure amp draw is no more than 10% greater than
indicated on serial plate data.
Air Coil - The air coil must be 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 fins while
cleaning. When the heat pump has experienced less
than 100 operational hours and the coil has not had
sufficient time to be “seasoned”, it is necessary to clean
the coil with a mild surfactant such as Calgon to remove
the oils left by manufacturing processes and enable the
condensate to properly “sheet” off of the coil.
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 floor 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
flow rates are at proper levels before servicing the
refrigerant circuit.
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Troubleshooting
General
If operational difficulties are encountered, perform
the preliminary checks below before referring to the
troubleshooting charts.
• Verify that the unit is receiving electrical supply power.
• Make sure the fuses in the fused disconnect switches
are intact.
After completing the preliminary checks described
above, inspect for other obvious problems such as
leaking connections, broken or disconnected wires, etc.
If everything appears to be in order, but the unit still fails
to operate properly, refer to the “DXM2 Troubleshooting
Process Flowchart” or “Functional Troubleshooting
Chart.”
DXM2 Board
DXM2 board troubleshooting in general is best
summarized as verifying inputs and outputs. After inputs
and outputs have been verified, board operation is
confirmed and the problem must be elsewhere. Below
are some general guidelines for troubleshooting the
DXM2 control.
Field Inputs
Conventional thermostat inputs are 24VAC from the
thermostat and can be verified using a voltmeter
between C and Y1, Y2, W, O, G. 24VAC will be present at
the terminal (for example, between “Y1” and “C”) if the
thermostat is sending an input to the DXM2 board.
Proper communications with a thermostat can be verified
using the Fault LED on the DXM2. If the control is NOT
in the Test mode and is NOT currently locked out or
in a retry delay, the Fault LED on the DXM2 will flash
very slowly (1 second on, 5 seconds off), if the DXM2 is
properly communicating with the thermostat.
Outputs
The compressor and reversing valve relays are 24VAC
and can be verified using a voltmeter. For units with
ECM blower motors, the DXM2 controls the motor using
serial communications, and troubleshooting should be
done with a communicating thermostat or diagnostic
tool. The alarm relay can either be 24VAC as shipped or
dry contacts for use with DDC controls by clipping the
JW1 jumper. Electric heat outputs are 24VDC “ground
sinking” and require a voltmeter set for DC to verify
operation. The terminal marked “24VDC” is the 24VDC
supply to the electric heat board; terminal “EH1” is stage
1 electric heat; terminal “EH2” is stage 2 electric heat.
When electric heat is energized (thermostat is sending a
“W” input to the DXM2 controller), there will be 24VDC
between terminal “24VDC” and “EH1” (stage 1 electric
heat) and/or “EH2” (stage 2 electric heat). A reading
of 0VDC between “24VDC” and “EH1” or “EH2” will
indicate that the DXM2 board is NOT sending an output
signal to the electric heat board.
Test Mode
Test mode can be entered for 20 minutes by pressing the
Test pushbutton. The DXM2 board will automatically exit
test mode after 20 minutes.
WARNING!
WARNING! HAZARDOUS VOLTAGE! DISCONNECT ALL
ELECTRIC POWER INCLUDING REMOTE DISCONNECTS
BEFORE SERVICING.
Failure to disconnect power before servicing can cause
severe personal injury or death.
Sensor Inputs
All sensor inputs are ‘paired wires’ connecting each
component to the board. Therefore, continuity on
pressure switches, for example can be checked at the
board connector. The thermistor resistance should be
measured with the connector removed so that only the
impedance of the thermistor is measured. If desired, this
reading can be compared to the thermistor resistance
chart shown in Table 8. An ice bath can be used to check
the calibration of the thermistor.
c l i m a t e m a s t e r. c o m
49
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Troubleshooting (Continued)
Advanced Diagnostics
If a communicating thermostat or diagnostic tool
(ACDU) is connected to the DXM2, additional diagnostic
information and troubleshooting capabilities are
available. The current status of all DXM2 inputs can be
verified, including the current temperature readings of all
temperature inputs. With a communicating thermostat
the current status of the inputs can be accessed from
the Service Information menu. In the manual operating
mode, most DXM2 outputs can be directly controlled
for system troubleshooting. With a communicating
thermostat the manual operating mode can be accessed
from the Installer menu. For more detailed information
on the advanced diagnostics of the DXM2, see the
DXM2 Application, Operation and Maintenance (AOM)
manual (part #97B0003N15).
DXM2 Troubleshooting Process Flowchart/Functional
Troubleshooting Chart
The “DXM2 Functional Troubleshooting Process
Flowchart” is a quick overview of how to start diagnosing
a suspected problem, using the fault recognition features
of the DXM2 board. The “Functional Troubleshooting
Chart” on the following page is a more comprehensive
method for identifying a number of malfunctions that
may occur, and is not limited to just the DXM2 controls.
Within the chart are five columns:
• The “Fault” column describes the symptoms.
• Columns 2 and 3 identify in which mode the fault is
likely to occur, heating or cooling.
• The “Possible Cause column” identifies the most likely
sources of the problem.
• The “Solution” column describes what should be done to
correct the problem.
50
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
DXM2 Process Flow Chart
WARNING!
WARNING! HAZARDOUS VOLTAGE! DISCONNECT ALL
ELECTRIC POWER INCLUDING REMOTE DISCONNECTS
BEFORE SERVICING.
Failure to disconnect power before servicing can cause
severe personal injury or death.
Start
Did Unit
Attempt to
Start?
DXM2 Functional
Troubleshooting Flow Chart
No
Check Main
power (see power
problems)
Yes
Did Unit
Lockout at
Start-up?
No
See “ Unit
short
cycles”
Yes
Yes
Check fault code on communicating
thermostat (ATC32) or Configuration
and Diagnostics Tool (ACD01)
Unit Short
Cycles?
No fault
shown
Replace
DXM2
No
See “ Only
Fan Runs”
Yes
See “ Only Yes
Comp
Runs”
Only Fan
Runs?
See fault codes in table
on following page
No
Only
Compressor
Runs?
No
Did unit lockout Yes
after a period of
operation?
No
Does unit
See “ Does No
operate in
not Operate
cooling?
in Clg”
Yes
Unit is OK!
‘See Performance
Troubleshooting’ for
further help
c l i m a t e m a s t e r. c o m
51
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Functional Troubleshooting
Fault
Main power problems
HP Fault
Code 2
Htg Clg Possible Cause
Air temperature out of range in heating
Overcharged with refrigerant
Bad HP Switch
Insufficient charge
X
Compressor pump down at start-up
Check charge and start-up water flow.
X
Reduced or no water flow in heating
X
X
Inadequate antifreeze level
Improper temperature limit setting (30°F vs
10°F [-1°C vs -2°C])
Water Temperature out of range
Bad thermistor
X
Reduced or no air flow in cooling
X
X
X
X
Air Temperature out of range
Improper temperature limit setting (30°F vs
10°F [-1°C vs -12°C])
Bad thermistor
Blocked drain
Improper trap
X
Poor drainage
X
x
X
X
X
Moisture on sensor
Plugged air filter
Restricted Return Air Flow
X
X
Under Voltage
X
X
X
X
Green Status LED Off
X
Reduced or no water flow in cooling
X
Water Temperature out of range in cooling
Reduced or no air flow in heating
X
High Pressure
LP/LOC Fault
Code 3
Solution
Check line voltage circuit breaker and disconnect.
Check for line voltage between L1 and L2 on the contactor.
Check for 24VAC between R and C on CXM/DXM'
Check primary/secondary voltage on transformer.
Check pump operation or valve operation/setting.
Check water flow adjust to proper flow rate.
Bring water temp within design parameters.
Check for dirty air filter and clean or replace.
Check fan motor operation and airflow restrictions.
Dirty Air Coil- construction dust etc.
Too high of external static. Check static vs blower table.
Bring return air temp within design parameters.
Check superheat/subcooling vs typical operating condition table.
Check switch continuity and operation. Replace.
Check for refrigerant leaks
X
X
X
X
X
X
X
Low Pressure / Loss of Charge
LT1 Fault
Code 4
Water coil low
temperature limit
X
X
X
LT2 Fault
Code 5
Air coil low
temperature limit
X
X
X
X
Condensate Fault
Code 6
Over/Under
Voltage Code 7
(Auto resetting)
Unit Performance Sentinel
Code 8
Swapped Thermistor
Code 9
X
X
X
X
X
X
Over Voltage
Heating mode LT2>125°F [52°C]
Cooling Mode LT1>125°F [52°C] OR LT2<
40ºF [4ºC])
LT1 and LT2 swapped
Blower does not operate
ECM Fault - Code 10
Blower operating with incorrect airflow
X
Low Air Coil Pressure Fault
(ClimaDry) Code 11
52
Reduced or no air flow in cooling or ClimaDry
Check pump operation or water valve operation/setting.
Plugged strainer or filter. Clean or replace..
Check water flow adjust to proper flow rate.
Check antifreeze density with hydrometer.
Clip JW3 jumper for antifreeze (10°F [-12°C]) use.
Bring water temp within design parameters.
Check temp and impedance correlation per chart
Check for dirty air filter and clean or replace.
Check fan motor operation and airflow restrictions.
Too high of external static. Check static vs blower table.
Too much cold vent air? Bring entering air temp within design parameters.
Normal airside applications will require 30°F [-1°C] only.
Check temp and impedance correlation per chart.
Check for blockage and clean drain.
Check trap dimensions and location ahead of vent.
Check for piping slope away from unit.
Check slope of unit toward outlet.
Poor venting. Check vent location.
Check for moisture shorting to air coil.
Replace air filter.
Find and eliminate restriction. Increase return duct and/or grille size.
Check power supply and 24VAC voltage before and during operation.
Check power supply wire size.
Check compressor starting. Need hard start kit?
Check 24VAC and unit transformer tap for correct power supply voltage.
Check power supply voltage and 24VAC before and during operation.
Check 24VAC and unit transformer tap for correct power supply voltage.
Check for poor air flow or overcharged unit.
Check for poor water flow, or air flow.
Reverse position of thermistors
Check blower line voltage
Check blower low voltage wiring
Wrong unit size selection
Wrong unit family selection
Wrong motor size
Incorrect blower selection
Check for dirty air filter and clean or replace
Check fan motor operation and airflow restrictions
Too high of external static - check static vs blower table
Air temperature out of range
Too much cold vent air - bring entering air temp within design parameters
Bad pressure switch
Check switch continuity and operation - replace
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Functional Troubleshooting (cont.)
Fault
Htg Clg Possible Cause
X
Low Air Coil Temperature
Fault - (ClimaDry) Code 12
ESD - ERV Fault (DXM Only)
Green Status LED Code 3
X
X
No Fault Code Shown
X
X
Unit Short Cycles
X
X
Only Fan Runs
X
X
Solution
Air temperature out of range
Bad thermistor
Check for dirty air filter and clean or replace
Check fan motor operation and airflow restrictions
Too high of external static - check static vs blower table
Too much cold vent air - bring entering air temp within design parameters
Check temp and impedance correlation per chart
ERV unit has fault (Rooftop units only)
Troubleshoot ERV unit fault
No compressor operation
Compressor overload
Control board
Dirty air filter
Unit in ‘Test Mode’
Unit selection
Compressor overload
Thermostat position
Unit locked out
Compressor overload
See ‘Only Fan Operates’
Check and replace if necessary
Reset power and check operation
Check and clean air filter
Reset power or wait 20 minutes for auto exit
Unit may be oversized for space - check sizing for actual load of space
Check and replace if necessary
Ensure thermostat set for heating or cooling operation
Check for lockout codes - reset power
Check compressor overload - replace if necessary
Check thermostat wiring at DXM2 - put in Test Mode and jumper Y1 and R to
give call for compressor
Reduced airflow in cooling, ClimaDry, or
constant fan
Thermostat wiring
c l i m a t e m a s t e r. c o m
53
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Performance Troubleshooting
Symptom
Htg Clg Possible Cause
X
X
Rduced or no air flow
in heating
X
Insufficient
f
Capacity/
Not Cooling or Heating
Properl
r
y
Properly
Check for dirty air filter and clean or replace
Check fan motor operation and airflow restrictions
Too high of external static - check static vs blower table
Check for dirty air filter and clean or replace
Check fan motor operation and airflow restrictions
Too high of external static - check static vs blower table
Check supply and return air temperatures at the unit and at
distant duct registers if significantly different, duct leaks
are present
Check superheat and subcooling per chart
Check superheat and subcooling per chart - replace
Perform RV touch test
Check location and for air drafts behind stat
Recheck loads & sizing check sensible clg load and heat
pump capacity
Reduced or no air flow
in cooling
X
X
Leaky duct work
X
X
X
X
X
X
X
Low refrigerant charge
Restricted metering device
Defective reversing va lve
Thermostat improperly located
X
X
Unit undersized
X
X
Scaling in water heat exchanger
Perform Scaling check and clean if necessary
X
X
Inlet water too hot or cold
Check load, loop sizing, loop backfill, ground moisture
Reduced or no air flow
in heating
X
High Head Pressure
X
X
X
X
X
X
X
X
X
Check for dirty air filter and clean or replace
Check fan motor operation and airflow restrictions
Too high of external static - check static vs blower table
Reduced or no water flow
in cooling
Inlet w ater too hot
Air temperature out of range in
heating
Check pump operation or valve operation/setting
Check water flow adjust to proper flow rate
Check load, loop sizing, loop backfill, ground moisture
Scaling in water heat exchanger
Unit over charged
Non-condensables insystem
Restricted metering device
Perform Scaling check and clean if necessary
Check superheat and subcooling - reweigh in charge
Vacuum system and reweigh in charge
Check superheat and subcooling per chart - replace
Check pump operation or water valve operation/setting
Plugged strainer or filter - clean or replace
Check water flow adjust to proper flow rate
X
Reduced water flow
in heating
X
Water temperature out of range
Low Suction Pressure
Bring return air temp within design parameters
Bring water temp within design parameters
Check for dirty air filter and clean or replace
Check fan motor operation and airflow restrictions
Too high of external static - check static vs blower table
Too much cold vent air - bring entering air temp within
design parameters
X
Reduced air flow
in cooling
X
Air temperature out of range
X
Insufficient charge
Check for refrigerant leaks
X
Too high of air flow
Check fan motor speed selection and airflow chart
X
Poor performance
See “Insufficient Capacity”
X
54
Replace or clean
X
X
Low Dischage Air
Temperature in Heating
Dirty filter
Solution
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Performance Troubleshooting (continued)
Low Dischage Air
Symptom
Temperature in Heating
X
Too high of air flow
Check fan motor speed selection and airflow chart
X
X
Poor performance
Too high of air flow
X
Unit oversized
See “Insufficient Capacity”
Check fan motor speed selection and airflow chart
Recheck loads and sizing check sensible clg load and
heat pump capacity
X
X
Thermostat wiring
Check G wiring at heat pump. Jumper G and R for fan
operation.
X
X
Fan motor relay
Jumper G and R for fan operation. Check for Line voltage
across blower relay contacts.
Check fan power enable relay operation (if present)
X
X
Fan motor
Check for line voltage at motor. Check capacitor
X
X
Thermostat wiring
Check thermostat wiring at or DXM2. Put in Test Mode
and then jumper Y1 and W1 to R to give call for fan,
compressor and electric heat.
Htg Clg Possible Cause
High Humidity
Only Compressor Runs
Unit Doesn't Operate in
Cooling
Modulating Valve
Troubleshooting
X
Solution
Set for cooling demand and check 24VAC on RV coil.
If RV is stuck, run high pressure up by reducing water flow
and while operating engage and disengage RV coil voltage
to push valve.
For DXM2 check for “O” RV setup not “B”.
Check O wiring at heat pump. DXM2 requires call for
compressor to get RV coil “Click.”
X
Reversing Valve
X
Thermostat setup
X
Thermostat wiring
Improper output setting
Verify the AO-2 jumper is in the 0-10V position
X
No valve output signal
Check DC voltage between AO2 and GND. Should be O
when valve is off and between 3.3v and 10v when valve
is on.
Check voltage to the valve
Replace valve if voltage and control signals are present at
the valve and it does not operate
No valve operation
c l i m a t e m a s t e r. c o m
55
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Start-Up Log Sheet
Installer: Complete unit and system checkout and follow unit start-up procedures in the IOM. Use this form to record
unit information, temperatures and pressures during start-up. Keep this form for future reference.
Job Name:
Street Address:
Model Number:
Serial Number:
Unit Location in Building:
Date:
Sales Order No:
In order to minimize troubleshooting and costly system failures, complete the following checks and data entries before
the system is put into full operation.
Fan Motor: CFM Settings (ECM)
Temperatures: F or C
Antifreeze:
Pressures: PSIG or kPa
Type
Cooling Mode
%
Heating Mode
Entering Fluid Temperature
Leaving Fluid Temperature
Temperature Differential
Return-Air Temperature
DB
WB
DB
Supply-Air Temperature
DB
WB
DB
Temperature Differential
Water Coil Heat Exchanger
(Water Pressure IN)
Water Coil Heat Exchanger
(Water Pressure OUT)
Pressure Differential
Water Flow GPM
Compressor
Amps
Volts
Discharge Line Temperature
Motor
Amps
Volts
Allow unit to run 15 minutes in each mode before taking data.
Note: Never connect refrigerant gauges during startup procedures. Conduct water-side analysis using P/T
ports to determine water flow and temperature difference. If water-side analysis shows poor performance,
refrigerant troubleshooting may be required. Connect refrigerant gauges as a last resort.
56
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Functional Troubleshooting
Refrigerant Circuit Diagrams
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Look up pressure drop in
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determine flow rate.
+HDWRI([WUDFWLRQ$EVRUSWLRQRU+HDWRI5HMHFWLRQ
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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.
c l i m a t e m a s t e r. c o m
57
58
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s
Rev.: 11/09
Please refer to the CM Installation, Operation and Maintenance Manual for operating and maintenance instructions.
LC083
*LC083*
NOTE: Some states or Canadian provinces do not allow limitations on how long an implied warranty lasts, or the limitation or exclusions of consequential or incidental damages, so the foregoing exclusions and limitations may
not apply to you. This warranty gives you speciÀc legal rights, and you may also have other rights which vary from state to state and from Canadian province to Canadian province.
Climate Master, Inc. • Customer Service • 7300 S.W. 44th Street • Oklahoma City, Oklahoma 73179 (405) 745-6000
OBTAINING WARRANTY PERFORMANCE
Normally, the contractor or service organization who installed the products will provide warranty performance for the owner. Should the installer be unavailable, contact any CM recognized dealer, contractor or service organization. If assistance is required in obtaining warranty performance, write or call:
LIMITATION OF LIABILITY
CM shall have no liability for any damages if CM’s performance is delayed for any reason or is prevented to any extent by any event such as, but not limited to: any war, civil unrest, government restrictions or restraints, strikes
or work stoppages, Àre, Áood, accident, shortages of transportation, fuel, material, or labor, acts of God or any other reason beyond the sole control of CM. CM EXPRESSLY DISCLAIMS AND EXCLUDES ANY LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGE IN CONTRACT, FOR BREACH OF ANY EXPRESS OR IMPLIED WARRANTY, OR IN TORT, WHETHER FOR CM’s NEGLIGENCE OR AS
STRICT LIABILITY.
LIMITATION OF REMEDIES
In the event of a breach of the Limited Express Warranty, CM will only be obligated at CM’s option to repair the failed part or unit or to furnish a new or rebuilt part or unit in exchange for the part or unit which has failed. If
after written notice to CM’s factory in Oklahoma City, Oklahoma of each defect, malfunction or other failure and a reasonable number of attempts by CM to correct the defect, malfunction or other failure and the remedy fails
of its essential purpose, CM shall refund the purchase price paid to CM in exchange for the return of the sold good(s). Said refund shall be the maximum liability of CM. THIS REMEDY IS THE SOLE AND EXCLUSIVE
REMEDY OF THE BUYER OR THEIR PURCHASER AGAINST CM FOR BREACH OF CONTRACT, FOR THE BREACH OF ANY WARRANTY OR FOR CM’S NEGLIGENCE OR IN STRICT LIABILITY.
Limitation: This Limited Express Warranty is given in lieu of all other warranties. If, notwithstanding the disclaimers contained herein, it is determined that other warranties exist, any such warranties, including without limitation any express warranties or any implied warranties of Àtness for particular purpose and merchantability, shall be limited to the duration of the Limited Express Warranty.
CM is not responsible for: (1) The costs of any Áuids, refrigerant or other system components, or associated labor to repair or replace the same, which is incurred as a result of a defective part covered by CM’s Limited Express
Warranty; (2) The costs of labor, refrigerant, materials or service incurred in removal of the defective part, or in obtaining and replacing the new or repaired part; or, (3) Transportation costs of the defective part from the installation site to CM or of the return of any part not covered by CM’s Limited Express Warranty.
This warranty does not cover and does not apply to: (1) Air Àlters, fuses, refrigerant, Áuids, oil; (2) Products relocated after initial installation; (3) Any portion or component of any system that is not supplied by CM, regardless
of the cause of the failure of such portion or component; (4) Products on which the unit identiÀcation tags or labels have been removed or defaced; (5) Products on which payment to CM is or has been in default; (6) Products
which have defects or damage which result from improper installation, wiring, electrical imbalance characteristics or maintenance; or are caused by accident, misuse or abuse, Àre, Áood, alteration or misapplication of the product; (7) Products which have defects or damage which result from a contaminated or corrosive air or liquid supply, operation at abnormal temperatures, or unauthorized opening of refrigerant circuit; (8) Mold, fungus or bacteria
damages; (9) Products subjected to corrosion or abrasion; (10) Products manufactured or supplied by others; (11) Products which have been subjected to misuse, negligence or accidents; (12) Products which have been operated
in a manner contrary to CM’s printed instructions; or (13) Products which have defects, damage or insufÀcient performance as a result of insufÀcient or incorrect system design or the improper application of CM’s products.
GRANT OF LIMITED EXPRESS WARRANTY
CM warrants CM products purchased and retained in the United States of America and Canada to be free from defects in material and workmanship under normal use and maintenance as follows: (1) All complete air conditioning, heating and/or heat pump units built or sold by CM for twelve (12) months from date of unit start up or eighteen (18) months from date of shipment (from factory), whichever comes Àrst; (2) Repair and replacement parts,
which are not supplied under warranty, for nintey (90) days from date of shipment (from factory). All parts must be returned to CM’s factory in Oklahoma City, Oklahoma, freight prepaid, no later than sixty (60) days after
the date of the failure of the part; if CM determines the part to be defective and within CM’s Limited Express Warranty, CM shall, when such part has been either replaced or repaired, return such to a factory recognized dealer,
contractor or service organization, F.O.B. CM’s factory, Oklahoma City, Oklahoma, freight prepaid. The warranty on any parts repaired or replaced under warranty expires at the end of the original warranty period.
EXCEPT AS SPECIFICALLY SET FORTH HEREIN, THERE IS NO EXPRESS WARRANTY AS TO ANY OF CM’S PRODUCTS. CM MAKES NO WARRANTY AGAINST LATENT DEFECTS. CM MAKES
NO WARRANTY OF MERCHANTABILITY OF THE GOODS OR OF THE FITNESS OF THE GOODS FOR ANY PARTICULAR PURPOSE.
It is expressly understood that unless a statement is speciÀcally identiÀed as a warranty, statements made by Climate Master, Inc., a Delaware corporation, (“CM”) or its representatives, relating to CM’s products, whether oral,
written or contained in any sales literature, catalog or any other agreement, are not express warranties and do not form a part of the basis of the bargain, but are merely CM’s opinion or commendation of CM’s products.
CLIMATE MASTER, INC.
LIMITED EXPRESS WARRANTY/ LIMITATION OF REMEDIES AND LIABILITY
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Warranty (U.S. & Canada)
THE SMART SOLUTION FOR ENERGY EFFICIENCY
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Warranty (International)
CLIMATE MASTER, INC.
LIMITED EXPRESS WARRANTY /LIMITATION OF REMEDIES AND LIABILITY
(FOR INTERNATIONAL CLASS PRODUCTS)
Disclaimer: It is expressly understood that unless a statement is speciÀcally identiÀed 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, written 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 Àrst; 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 qualiÀes 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
expires at the end of the original warranty period.
This warranty does not cover and does not apply to: (1) Air Àlters, fuses, refrigerant, Áuids, oil; (2) Products relocated after initial installation; (3) Any portion or component of any system that is not supplied by CM, regardless of the cause of the failure
of such portion or component; (4) Products on which the unit identiÀcation tags or labels have been removed or defaced; (5) Products on which payment 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,
Àre, Áood, 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 Áow 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 insufÀcient performance as a result of insufÀcient or incorrect system design or the improper
application, installation, or use of CM’s products; or (14) Electricity or fuel costs, or any increases or unrealized savings in same, for any reason.
CM is not responsible for: (1) The cost of any Áuids, refrigerant or other system components, or the associated labor to repair or replace the same, which is incurred as a result of a defective part covered by CM’s Limited Express Warranty; (2) The cost
of labor, refrigerant, materials or service incurred in diagnosis and removal of the defective part, or in obtaining and replacing the new or repaired part; (3) Transportation costs of the defective part from the installation site to CM or of the return of any
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 qualiÀed judicial body that other warranties exist, any such warranty, including
without limitation any express warranty or any implied warranty of Àtness for particular purpose and merchantability, shall be limited to the duration of the Limited Express Warranty. This Limited Express Warranty does not exclude any warranty that is
mandatory and that may not be excluded under applicable imperative law.
LIMITATION OF REMEDIES
In the event of a breach of this Limited Express Warranty or any warranty that is mandatory under applicable imperative law, CM will only be obligated at CM’s option to either repair the failed part or unit or to furnish a new or rebuilt part or unit in exchange 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
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,
Àre, Áood, 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 STRICT LIABILITY. Nothing in this Agreement is intended to
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
LC079
*LC079*
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
speciÀc 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.
Rev.: 10/09
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c l i m a t e m a s t e r. c o m
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tr a n q u i l i t y ® 2 2 ( T Z ) S e r i e s
Revised: 05/12/15
Revision History
Date:
Item:
Action:
05/12/15
Decoder - Page 3
Changed to Rev C
12/17/14
Table - Page 6
Updated
06/10/14
Pages 8, 11, 12, 15, 20, 22, 25, 32, 33, 34
Misc. edits
03/24/14
Table 10
Updated PD 024, 036, 060
10/08/13
Figure 7b
Updated
10/07/13
Figure 10a: Vertical Condensate Drain
Updated
01/21/13
vFlow Tables
Updated GPM, WPD
11/09/12
POE Oil Warning
Added
10/29/12
Unit Operating Conditions
Water Quality Table
Condensate Drain Connection
Nominal Resistance at Various Temp Table
Updated
06/05/12
First Published
ISO 9001:2008
Certified
R
AI
BR
I
HE
AT P U M P S
A
TO
NE
WATER
TO
IFIED TO ARI A
RT
S
C
CE
NG WITH
LYI
MP
O
IR
MANUFACT
UR
ER
Quality: First & Always
R
ST
AND
3
ARD 1
7300 S.W. 44th Street
-1
IS
O
25
6
Oklahoma City, OK 73179
Phone: 405-745-6000
*97B0075N16*
Fax: 405-745-6058
climatemaster.com
97B0075N16
ClimateMaster works continually to improve its products. As a result, the design and specifications of each product at the time for order may be changed
without notice and may not be as described herein. Please contact ClimateMaster’s Customer Service Department at 1-405-745-6000 for specific
information on the current design and specifications. Statements and other information contained herein are not express warranties and do not form
the basis of any bargain between the parties, but are merely ClimateMaster’s opinion or commendation of its products.
The management system governing the manufacture of ClimateMaster’s products is ISO 9001:2008 certified.
ClimateMaster is a proud supporter of the Geothermal Exchange Organization - GEO. For more information visit geoexchange.org.
© ClimateMaster, Inc. 2009
60
C l i m a t e M a s t e r W a t e r- S o u r c e H e a t P u m p s