Climatemaster Tranquility® Low Profile TRL Series ½ – 1¼ Tons (1.76 – 4.4 kW) Install Manual

PDF Download

Document

Tranquility

®

Low-Profile

(TRL) Series

Models TRL 006 - 015

60Hz - HFC-410A

INSTALLATION, OPERATION

& MAINTENANCE

97B0001N15

Created: November 11, 2021

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

This page intentionally left blank.

2 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Model Nomenclature - General Overview .......................................................................................4

General Information ............................................................................................................................ 5-7

Unit Physical Data ....................................................................................................................................8

TRL – Horizontal Dimensional Drawing ...........................................................................................9

TRL – Horizontal Service Access ..................................................................................................... 10

Horizontal Installation ...................................................................................................................11-13

Condensate Installation ....................................................................................................................... 14

Ductwork Installation ....................................................................................................................15-17

Unit Access .......................................................................................................................................18-20

Piping Installation ...........................................................................................................................21-22

Internal Water Pump Performance ................................................................................................. 23

Water-Loop Heat Pump Applications.....................................................................................24-25

Ground-Loop Heat Pump Applications ..................................................................................26-27

Electrical - Line Voltage ....................................................................................................................... 28

Electrical Data ........................................................................................................................................ 29

Electrical - Power Wiring .............................................................................................................30-31

Electrical - Power & Low Voltage Wiring ..............................................................................32-33

Electrical - Low Voltage Wiring ........................................................................................................ 34

Electrical - Thermostat Wiring .......................................................................................................... 35

Blower Performance Data ................................................................................................................. 36

TRL Series Wiring Diagram Matrix ................................................................................................. 37

CXM2 Controls ................................................................................................................................38-42

Safety Features - CXM2 Controls .............................................................................................43-45

Unit Starting and Operating Conditions .................................................................................46-47

Water Quality Standards .............................................................................................................48-51

Piping System Cleaning and Flushing ....................................................................................52-53

Unit and System Checkout ..........................................................................................................54-55

Unit Start-Up Procedure ..............................................................................................................56-58

Unit Operating Conditions ...........................................................................................................59-61

Preventive Maintenance ...............................................................................................................62-63

Functional Troubleshooting .........................................................................................................64-67

Performance Troubleshooting....................................................................................................68-70

Start-Up Log Sheet ............................................................................................................................... 71

Functional Troubleshooting Form .............................................................................................72-73

Warranty (U.S. & Canada) .................................................................................................................. 74

Revision History ..................................................................................................................................... 76 c l i m a t e m a s t e r.c o m 3

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Model Nomenclature – General Overview

MODEL TYPE

TR = TRANQUILITY HIGH

EFFICIENCY 410A

1 2

T R

CONFIGURATION

L - HORIZONTAL LOW PROFILE

UNIT SIZE

006 - G

009 - G

012 - G

015 - G

4 5 6

0 1 2

VOLTAGE

G = 208-230/60/1

CXM2

CXM2 w/MPC

CONTROLS

STANDARD

DISCONNECT

S = STANDARD

SUPPLY AIR OPTIONS

Option

Supply

Straight

Straight + Back

Opening

Area (in)

8x6

16x6

24x6

8x6 + 7x6

16x6 + 7x6

006 or

009

N/A

012 or

015

N/A

Back

Field Configured

24x6 + 7x6

7x6

N/A

* For sizes 012-015 this configuration will have internal static pressure

losses up to 0.2.

RETURN AIR OPTIONS

S = LEFT RETURN, STAINLESS STEEL DRAIN PAN

T = RIGHT RETURN, STAINLESS STEEL DRAIN PAN

1” FILTER FRAME

2” FILTER FRAME

CABINET INSULATION

EXTENDED RANGE

STANDARD ULTRA QUIET

STANDARD RANGE

STANDARD ULTRA QUIET

WATER FLOW SWITCH & AIR COIL OPTIONS

WATER FLOW

SWITCH TYPE

Standard

High Pressure

NON

COATED

AIR COIL

TIN

COATED

AIR COIL

E-COATED

AIR COIL

NOTES:

1. All products come standard with Braze Plate Heat Exchangers (BPHE).

2. Products with the Extended Range option come with the BPHE and all copper tubing insulated.

The units are equipped with low temperature discharge line/low pressure sensors for extended

operating range conditions.

WATER CIRCUIT OPTIONS

0 = None

7 = Internal Circulating Pump

M = Motorized Water Valve

F = 2.5 GPM/Ton Auto Flow Regulator

L = 3.0 GPM/Ton Auto Flow Regulator

W = 2.5 GPM/Ton Auto Flow Regulator & Motorized Water Valve

V = 3.0 GPM/Ton Auto Flow Regulator & Motorized Water Valve

Note: Above model nomenclature is a general reference. Not all configurations are available on all models.

Consult selection software for detailed information.

4 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

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.

⚠

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

General Information

WARNING!

⚠

WARNING!

The EarthPure ®

Application and Service Manual should be read and understood before attempting to service refrigerant circuits with HFC-410A.

⚠ WARNING!

⚠

WARNING!

To avoid the release of refrigerant into the atmosphere, the refrigerant circuit of this unit must be serviced only by technicians who meet local, state, and federal 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 can quickly become clogged with construction dirt and debris, which may cause system damage and void product warranty.

⚠ WARNING!

⚠

WARNING! The installation of watersource 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.

⚠ 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.

c l i m a t e m a s t e r.c o m 5

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

General Information, Cont’d.

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.

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. Confirm supply air configuration matches duct design plans.

7. Locate and verify the hanger kit and other provided field installed parts have been removed from the compressor and blower sections of the unit.

8. The unit is shipped with plastic plugs

(hand-tightened) to protect the water lines from debris or contaminant agents that might affect the BPHE, remove before connecting the unit to the main water loop.

6 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

General Information, Cont’d.

⚠ 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 will 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.

⚠ WARNING!

⚠

WARNING!

This product can expose you to chemicals including formaldehyde, which is known to the state of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.

c l i m a t e m a s t e r.c o m 7

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Unit Physical Data

Tranquility ®

( TRL ) Series ( 60 Hz )

Model

Factory Charge R410A - (oz.)

Motor & Blower

ECM Constant Torque (HP) [W]

Blower Wheel Size (Dia x W)

Water Connection Size

Water volume (gal)*

FPT - All Other

Horizontal

Filter Standard - 1” Throwaway

Filter Standard - 2” Throwaway

Weight - Operating (lbs.)

Weight - Packaged (lbs.)

*Volume for BPHE only

TRL006

0.037

145

185

TRL009

5.7 x 7.98 (1pc)

0.25 [186]

0.042

1/2” FPT

TRL012

146

186

8.5 x 28 x 1

8.5 x 28 x 2

152

192

TRL015

5.7 x 7.98 (2pc)

0.049

159

199

Unit Maximum Water Working Pressure

Base Unit

Internal Secondary Pump (ISP)

Internal Motorized Water Valve (MWV)

Internal Auto Flow Valve

20 Mesh Y Strainer Valve

Flow switch - Low Pressure System

Flow switch - High Pressure System

Max Pressure PSIG

[kPa]

500 [3447]

200 [1379]

300 [2068]

600 [4137]

160 [1103]

360 [2482]

8 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

TRL – Horizontal Dimensional Drawing

RIGHT RETURN

BOTTOM ISO VIEW

SERVICE TOOL

CONNECTION

ASP

CEP CEP

ASP

SERVICE TOOL

CONNECTION

LEFT RETURN

BOTTOM ISO VIEW

SUPPLY AIR

KNOCKOUTS

SUPPLY AIR

KNOCKOUTS

CEP CEP

WRP WRP

HANGER POINTS 4X

BAP RETURN

AIR

TOP

BAP

BOTTOM

21.155

WRP

BAP

9.000

ASP

HIGH VOLTAGE

WIRING K.O.

J 4.532

3.157

LOW VOLTAGE

WIRING K.O.

RIGHT

.975

54.718

FRONT

WATER OUT

1/2"fpt

CEP

2.377

6.408

WATER IN

1/2"fpt

1.781

22.500

AIR DISCHARGE 3X

FIELD CONFIGURABLE

KNOCKOUTS

24.000

.906

6.000

2.978

1.578 P

53.006

7.052

1.742

REAR

BACK FIELD CONFIGURED

SUPPLY AIR KNOCK OUT

ASP

.811

CONDENSATE

DRAIN

26.378

2.540

RETURN

AIR

.471

LEFT

ASP

Notes:

1. While clear access to all removable panels is not required, installer should take care to comply with all building codes and allow adequate clearance for future field service.

2. Units shipped with filter frames with duct mounting collar for connection to return air duct connection.

3. Hanger brackets are designed into the top panel of the unit.

4. Units are provided with a 1/2” MPT condensate connection. There is also a condensate connection kit provided in the unit which contains a flexible coupling that can be used to connect to 3/4” PVC or 1” Copper.

5. Blower service access can be from the bottom, side, or top.

6. Bottom blower access allows blower assembly to be dropped, disconnected, and removed for servicing.

7. An installation kit that includes the hanger hardware and condensate coupling is attached the unit side access panel. Remove before installing.

Legend:

CEP = Controls & Electrical Service Panel

BAP = Blower, Air Coil & Drain Pan Service Panel

WRP = Water & Refrigerant Service Panel

*ASP = Additional Service Panel (not required)

Note:

*ASP are removable panels that provide additional access to the units interior. Clear access to ASP panels is not required and they are not to be used in place of the mandatory CEP, WRP, or BAP panels.

c l i m a t e m a s t e r.c o m 9

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

TRL – Horizontal Service Access

Ceiling Hung - Left Return Straight Discharge

RETURN AIR ASP Front Access Panel

BAP CEP

Front Access Panel

Ceiling Hung - Right Return Straight Discharge

ASP RETURN AIR

CEP

Top View - Left Return Straight Discharge

ASP

BAP

Top View - Right Return Straight Discharge

ASP

Return

Air Flow

Supply

Air Flow

Supply

Air Flow

Return

Air Flow

Front Front

ASP

CEP

ASP ASP ASP

CEP

= Optional 2 ′ Service Access = Mandatory 1 ′ Service Access

(front access service should be

increased if external pumps,

valves, etc. are applied)

= Mandatory 3 ′ Service Access

Notes:

1. While clear access to all removable panels is not required, installer should take care to comply with all building codes and allow adequate clearance for future field service.

2. CEP and BAP requires 2’ bottom service access. CEP requires 2’ front service access as well. Ceiling mounted service access doors are acceptable. BAP side service access is optional.

3. ASP are removable panels that provide additional access to the units interior. Clear access to ASP panels is not required and they are not to be used in place of the mandatory CEP and BSP panels.

4. For back discharge configurations, supply air is delivered to the back of the unit (side opposite of the controls) and all blower service access is from the bottom. Not all sizes available in back discharge only.

Please see the Ductwork Installation section for details.

5. For back and straight combined discharge configurations, all blower service access is from the bottom.

Legend:

CEP = Controls & Electrical Service Panel

BAP = Blower, Air Coil, & Drain Pan Service Panel

WRP = Water & Refrigerant Service Panel

ASP = Additional Service Panel (not required)

10 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

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).

TRL units are designed to be accessed from the bottom for servicing. Sufficient clearance should be given underneath the unit for access to bottom service panels.

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 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, control, or blower assembly.

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.

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 11

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Horizontal Installation Cont’d.

Mounting Horizontal Units

Horizontal units have 4 hanger brackets designed into the top panel of the unit, one at each corner. Enclosed within the unit there is a hanger kit hardware bag containing vibration isolation grommets, washers and a hanger installation instruction page. See Figure 1. Refer to the hanger installation instruction page contained in the hardware bag for details of final hanger bracket attachment and unit suspension. See Figure 1a.

Use four (4) field supplied 3/8” diameter threaded rods and factory provided vibration isolators to suspend the unit.

Safely lift the unit into position supporting the bottom of the unit. Ensure the top of the unit is not in contact with any external objects. Connect the top end of the 4 all-thread rods, slide rods through the brackets and grommet then assemble washers and double nuts at each rod.

Ensure that the unit is approximately level and that the threaded rod extends past the nuts.

Pitch the unit toward the drain as shown in Figure 2 to improve the condensate drainage. Ensure that unit pitch does not cause condensate leaks inside the cabinet. Cut any remaining all thread below the lower nut so that it does not interfere with any electrical or water connections on the front of the unit.

Figure 1: Hanger Bracket

Figure 1a:

12 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Horizontal Installation, Cont’d.

Figure 2: Horizontal Unit Pitch

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

Drain Connection

Figure 3: Typical Horizontal Unit Installation

3/8" [10mm] threaded rods

(by others)

Insulated

Supply Duct

Return Air

Unit Hanger

Optional Low Pressure Drop Water

Control Valve

(can be internally mounted on some models)

Stainless steel braid hose with integral "J" swivel

Optional Balancing Valve

Building

Loop

Supply Air

Flexible Duct

Connector

Unit Power

Thermostat

Wiring

Water Out

Water In

Ball Valve with optional integral P/T plug and strainer

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 e-coated air coils.

Notice!

Installation Note - Ducted Return:

Many horizontal WSHPs are installed in a return air ceiling plenum application (above ceiling). All TRL products are equipped with filter frames for ducted or non-ducted returns. 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.c o m 13

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Condensate 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. 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 4. As a general rule, the minimum depth for traps is 1-1/2 inches. 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.

Figure 4: Horizontal Condensate

Connection

2”

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.

Some applications will require condensate pumping due to limited ceiling space or the need to connect to a main drain line higher in elevation. Condensate pumps are to be field provided and are mounted externally to the unit.

Units are provided with a 1/2" MPT condensate connection. There is also a condensate connection kit provided in the unit which contains a flexible coupling that can be used to connect to 3/4" PVC or 1" Copper. Dispose of kit if not used.

See figure 5.

Figure 5: Condensate Kit

1.5”

⚠ CAUTION!

⚠

CAUTION! Ensure condensate line is pitched toward drain 1/8 inch per ft

[11mm per m] of run.

14 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Duct Work 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 6 for horizontal 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 duct board 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.

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.

TRL products can be supplied with factory or field configured supply air openings. If factory configured supply air openings are desired, the configurations can be either left or right return air with right or left supply air. Back supply air can also be selected as field or factory configured but must be paired with left or right supply air openings on sizes 12 and 15. Please refer to Tables 1,

2, and 3 for minimum and maximum supply air openings by size.

Flanges for connection to the supply air are provided when factory configured supply air openings are ordered. When field configured supply air openings are selected, supply air flanges are integrated into the cabinet design.

Perforated supply air openings are knocked out and then the supply air flanges are bent back for connection to supply air plenum or duct work.

NOTES: Only TRL sizes 006-009 can be applied as back discharge supply air only. Sizes 012-015 must be applied as side discharge supply air with the option to be combined with back discharge supply air. Return air configurations can not be converted in the field. c l i m a t e m a s t e r.c o m 15

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Duct Work Installation, Cont’d.

Figure 6: Side Discharge Supply Air Openings

8 x 6

16 x 6

24 x 6

Figure 6a: Back Discharge Supply Air Opening

7 x 6

16 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Duct Work Installation, Cont’d.

Table 1: Supply Air (SA) Opening Dimensional Data

Size Right/Left SA Opening Sizes Back SA Opening

006-009

012-015

All dimensions shown in inches.

8 x 6 or 16 x 6

16 x 6 or 24 x 6

7 x 6

Table 2: Supply Air (SA) Square Inches

Size

006-009

012-015

Number of

Openings

1 or 2

Minimum Sq. in.

Opening*

All dimensions shown in inches.

* Less than minimum SA open area will cause unit to trip on safeties.

Maximum Sq. in.

Opening

186

Recommended Sq. in.

Opening

144

Table 3: Supply Air Options

Supply

Straight

Straight + Back

Opening Area (in)

8x6

16x6

24x6

8x6 + 7x6

16x6 + 7x6

24x6 + 7x6

7X6

006 or 009

012 or 015

Back

Field Configured -

X X

* For sizes 012-015 this configuration will have internal static pressure losses up to 0.2. ClimateMaster recommends field

wiring to motor speed tap four for highest fan motor CFM performance.

c l i m a t e m a s t e r.c o m 17

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Unit Access

The TRL series is unique to the

ClimateMaster product line in the way installers and service technicians’ interface with the product. Traditionally for horizontal products unit controls/electrical connections are accessed from the unit’s front access panel, blowers are accessed through the side or back panel, and water/refrigerant circuit repairs require the unit to be brought down from the ceiling installation.

The complete blower assembly can be slid down from the bottom of the unit.

The is a safety latch in place to prevent the blower assembly from dropping when the bottom blower access panel is removed. Remove the screw and pull back on the latch to slide the blower assembly down. The assembly will rest on a service rail where the technician may service the motor or remove the whole assembly by disconnecting one electrical quick connector.

On TRL products the unit controls, electrical components, water components/ circuit, the refrigeration components/ circuit, optional power disconnect, service tool connection, drain pan, air coil, air filter, and blower motor can be accessed from the bottom of the unit (see Figures 7 and

8). This greatly increases the installers and service technicians’ ability to access and interface the water source heat pump while it is installed in the ceiling.

The product is also designed to be accessed in many of the traditional ways as well. The unique control box design ships from ClimateMaster facing down for bottom access but can be flipped up in the field for front access. This allows those who interface with the product to access the unit controls either from the bottom or from the front of the unit. See Figures 9 and 10 for details.

The TRL condensate drain pan can be accessed for service or removal from the bottom of the unit. After removing the external condensate line connection, remove the drain pan access panel. First, remove the condensate sensor clip from the pan and set it to the side. Next remove the drain pan set screw located next to the compressor side of the unit. Then hold the drain pan and slide it towards the back of the unit until the condensate pan is pushed all the way against the back access panel. Lastly, allow the opposite side of the pan to drop down and then slowly slide the drain pan down allowing the drain pan nipple to be pulled through the access panel opening with out damaging the connection threads.

Alternatively, if the unit requires tabletop service on the control box, the TRL product is designed with a rotation feature to allow installer or service technician to interact with the control panel from the front of the unit. The user will need to remove the top and front access panels from the unit, remove the 2 screws that hold the control panel facing down, rotate the control panel and lock it at 45 degrees with the pivotal element on the right side of the panel control support. See Figure

11 for details.

Bottom Service Access

• Controls

• Electrical Components

• Water Circuit/Components

• Refrigerant Circuit/Components

• Power Disconnect (optional - not shown)

• Service Tool Connection

• Drain Pan

• Air Filter

• Air Coil

• Blower Motor Assembly

C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Unit Access, Cont’d.

Figure 7: ISO View (Left Return Configuration w/ Optional Power Disconnect Shown)

CONTROLS & ELECTRICAL

FRONT SERVICE PANEL

SERVICE TOOL

CONNECTION

ADDITIONAL

SERVICE

PANEL

WATER STRAINER

WATER & REFRIGERANT

SERVICE PANEL

SUPPLY AIR

OPENINGS/

KNOCKOUTS

CONTROLS & ELECTRICAL

BOTTOM SERVICE PANEL

OPTIONAL POWER DISCONNECT

(NON-REMOVABLE PANEL

WHEN OPTION IS SELECTED)

BLOWER, AIR COIL, &

DRAIN PAN SERVICE PANEL

Figure 8: Bottom View (without Optional Power Disconnect Shown)

CONTROLS & ELECTRICAL BOTTOM SERVICE PANEL

WATER &

REFRIGERANT

SERVICE PANEL

BLOWER, AIR COIL, &

DRAIN PAN SERVICE PANEL c l i m a t e m a s t e r.c o m 19

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Unit Access, Cont’d.

Figure 9: Unit Control Box Rotation - Side View

Figure 10: Unit Control Box Rotation - Front ISO View

Figure 11: Unit Control Box Rotation - Table Top Service Position

20 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

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 3. 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.

6. Before connecting the hose kits to the supply and return water connections, remove the threaded pipe caps and dispose

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 for ground loop applications in most climates).

Pipe joint compound is not necessary when plumbing pipe 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 plumbing pipe tape or pipe joint compound that is applied.

Maximum allowable torque for brass fittings is 30 ft-lbs [41 N-m]. If a torque wrench is not available, tighten fingertight 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.

All units come standard with and require a minimum 20 mesh water strainer located on the water inlet side.

Installations not using a minimum

20 mesh water strainer will void all warranties. Braze plate heat exchangers contain small water cavities. Blockage of water flow cavities within the heat exchanger from water containing contaminants could cause a critical failure of the heat exchanger which could result in flooding.

Table 3: Metal Hose Minimum Bend Radii

Hose Diameter

1/2" [12.7mm]

Minimum Bend Radii

2-1/2" [6.4cm]

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.

c l i m a t e m a s t e r.c o m 21

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Piping Installation, Cont’d.

Figure 12: Supply/Return Hose Kit

Return

Supply

Refer to Figure 12 for an illustration of a typical supply/return hose kit. Adapters secure hose assemblies to the unit and risers. Install hose assemblies properly and check regularly to avoid system failure and reduced service life.

⚠ WARNING!

⚠

WARNING!

A minimum 20 mesh water strainer is required for all units.

⚠ 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.

22 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Internal Water Pump Performance

Internal water pumps are utilized for single pipe applications. A single pipe loop designs combines the supply and return water lines into one pipe saving money on installation labor and material costs. Not only is there reduced piping material, internal pumps remove the need for motorized water valves and auto flow regulators (sometimes called balancing valves). Internal factory installed water pumps inside the unit are designed to provide the needed water flow through the unit heat exchanger. The chart below demonstrates the performance of this optional factory installed water pump.

Figure 13: Internal Water Pump Performance

60 Hz Performance Curves

0.0

0 2

1.0

CIRCULATOR MODELS

FLOW-M3/H

2.0 3.0 4.0

60hz

5.0

06-09

12-15 4.0

4 6 8 10 12

FLOW-GPM

14 16 18 20

3.0

2.0

1.0

0.0

c l i m a t e m a s t e r.c o m 23

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

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. If air is introduced to the TRL system, an air lock can get trapped in the braze plate heat exchanger causing freezing of the heat exchanger and potential flooding.

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.

Plumbing pipe thread tape 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 as shown in Figure 14 for connection between the unit and the piping system.

Depending upon selection, hose kits may include shut off valves, P/T plugs for performance measurement, high pressure stainless steel braided hose, “Y” type strainer with blow down valve, and/ or “J” type swivel connection. Balancing valves and an external low pressure drop solenoid valve for use in variable speed pumping systems may also be included in the hose kit.

The piping system should be flushed to remove dirt, piping chips, and other foreign material prior to operation (see “Piping

System Cleaning and Flushing Procedures” in this manual). The flow rate is usually set between 2 and 3 gpm per ton [2.9 and 4.5 l/m per kW] of cooling capacity.

ClimateMaster recommends 2.5-3 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.

24 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Water-Loop Heat Pump Applications, Cont’d.

Figure 14: Typical Water-Loop Application

3/8" [10mm] threaded rods

(by others)

Insulated

Supply Duct

Return Air

Unit Hanger

Optional Low Pressure Drop Water

Control Valve

(can be internally mounted on some models)

Stainless steel braid hose with integral "J" swivel

Optional Balancing Valve

Building

Loop

Supply Air

Flexible Duct

Connector

Unit Power

Thermostat

Wiring

Water Out

Water In

Ball Valve with optional integral P/T plug and strainer c l i m a t e m a s t e r.c o m 25

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

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.

should be used so that flow can be measured using the pressure drop of the unit heat exchanger.

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

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

⚠ WARNING!

⚠

WARNING! TRL Series products contain braze plate heat exchangers and should never be applied to a ground water application. Applying the TRL product to a ground water application will void the warranty. ⚠ 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.

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.

Piping Installation

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

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,

C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Ground-Loop Heat Pump Applications, Cont’d.

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 4 for the amount of antifreeze needed. Antifreeze concentration should be checked from a well mixed sample using a hydrometer to measure specific gravity.

⚠ WARNING!

⚠

WARNING! In the event of a power outage generator powered backup water pumping must be used to insure the water loop temperature does not drop below freezing. If motorized water valves are used in the system they must be set to fail (normally) open which will allow water to flow through the heat exchanger in the event there is power loss in the building.

Table 4: Antifreeze Percentages by Volume

Type

Minimum Temperature for Low Temperature Protection

10°F [-12.2°C]

25%

15°F [-9.4°C]

21%

20°F [-6.72°C]

16%

25°F [-3.92°C]

10% Methanol

100% USP food grade inhibited

Propylene Glycol

Ethanol*

38%

29%

* Must not be denatured with any petroleum based product

25%

22%

20%

15%

14% c l i m a t e m a s t e r.c o m 27

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

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.

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 and the

National Electric Code, as 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.

⚠ 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.

28 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Electrical Data

Standard Unit

Voltage

Code

Rated

Voltage

Min/Max

Compressor

MCC RLA LRA

ECM

FLA

Total

Unit

FLA

Min

Circ

AMP

Max

Fuse

AMP

Max

Fuse/

HACR

208-230/60/1

187.2 /

253

5.2

2.5

17.7

2.3

4.8

5.4

7.9

15A

G 208-230/60/1

187.2 /

253

7 3.6

22.2

2.3

5.9

6.8

10.4

15A

G 208-230/60/1

187.2 /

253

7.9

5.6

32.5

2.3

7.9

9.3

14.9

20A

G 208-230/60/1

187.2 /

253

10.3 5.6

29 2.3

7.9

9.3

14.9

20A w/Internal Pump

Voltage

Code

Rated

Voltage

Min/Max

Compressor

MCC RLA LRA

ECM

FLA

ISP

Pump

FLA

Total

Unit

FLA

Min

Circ

AMP

Max

Fuse

AMP

Max

Fuse/

HACR

208-230/60/1

187.2 /

253

5.2

2.5

17.7

2.3

0.39

5.2

5.8

8.3

15A

G 208-230/60/1

187.2 /

253

7 3.6

22.2

2.3

0.39

6.3

7.2

10.8

15A

G 208-230/60/1

187.2 /

253

7.9

5.6

32.5

2.3

0.52

8.4

9.8

15.4

20A

G 208-230/60/1

187.2 /

253

10.3 5.6

29 2.3

0.52

8.4

9.8

15.4

20A c l i m a t e m a s t e r.c o m 29

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Electrical – Power Wiring

⚠ WARNING!

⚠

WARNING!

Disconnect electrical power source to prevent injury or death from electrical shock.

⚠ CAUTION!

⚠

CAUTION!

Use only copper conductors for field installed electrical wiring. Unit terminals are not designed to accept other types of conductors.

Electrical - Line Voltage - All field installed wiring, including electrical ground, must comply with the National

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 and the

National Electric Code, as applicable.

Power Connection - Line voltage connection is made by connecting the incoming line voltage wires to the “L” side of the contactor as shown in Figure 15.

Consult electrical data tables for correct fuse size.

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

Blower Speed Selection – CT ECM

- CT (Constant Torque) ECM blower fan speeds can be changed at the thermostat. Please see Table 6 for blower speed settings. Consult the TRL submittal and wire diagrams for reference to AHRI rated air flow and factory default wiring.

Special Note for AHRI Testing: To achieve rated airflow for AHRI testing purposes on all CT ECM products is necessary to be wired to the correct fan motor tap. 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.

30 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Electrical – Power Wiring, Cont’d.

Figure 15: Single Phase Line Voltage Field Wiring

6 5

3 1

ID #

DESCRIPTION

TERMINAL BLOCK

BLOWER RELAY

CONTACTOR

PUMP/MWV RELAY

RUN CAPACITOR

START CAPACITOR

TRANSFORMER 75VA

CXM2 CONTROL BOARD

GROUND LUG

CONTROL BOX

2 c l i m a t e m a s t e r.c o m 31

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Electrical – Power & Low Voltage Wiring

Thermostat Connections - The thermostat should be wired directly to the

CXM2 board. See “Electrical – Thermostat” for specific terminal connections. Review the appropriate AOM (Application,

Operation and Maintenance) manual for units with DDC controls.

Low Water Temperature Cutout

Selection Do not clip the JW3 jumper, which lowers the sensing temperature associated with thermistor LT1 and LWT connected to the board, unless the unit is working with a minimum of 20% brine solution, in which case, the jumper can be clipped. Entering water temperatures below the products operational range will damage the braze plate heat exchanger and cause critical failure. Note that the LT1 thermistor is located on the refrigerant line between the braze plate heat exchanger and expansion device (TXV). LWT thermistor is located on the water line leaving the braze plate heat exchanger.

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.

Low Pressure Switch Cutout Selection -

TRL units are equipped with two low pressure switches which are monitored by the CXM2 unit controller. If the JW3 jumper is not clipped, the board will look for the pressure switch wired on the LP-J3 input and ignore the T4-J8 input. If JW3 jumper is clipped, the board will look for the pressure switch wired on T4-J8 and ignore the LP-J3 input.

Pump or Motorized Water Valve Relay -

If an internal pump or mwv is selected as one of the options, it will be controlled by a 24VDC relay connected to EH1 on the CXM2 board, allowing independent control from CC.

32 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Electrical – Power & Low Voltage Wiring, Cont’d.

Figure 16: LT1 Limit Setting c l i m a t e m a s t e r.c o m 33

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Electrical – Low Voltage Wiring

Accessory Connections

When water valves or circulating pumps are applied as field installed external to the unit, a field accessory kit is required.

This kit includes a relay, wires, and installation instructions. See figures 17 and 18 for wiring details.

Low Voltage VA Ratings

Component

Typical Blower Relay

Typical Reversing Valve Solenoid

30A Compressor Contactor

Subtotal

+ CXM2 board (5 - 9 VA)*

Remaining VA for Accessories**

6 - 7

4 - 6

6 - 9

16 - 22

21 - 31

19 - 29

* Standard transformer for CXM2 board is 75VA.

Optional DDC controls.

** Add accessory relay for pump or mwv (optional) - 1.4 VA

Figure 17: CXM2 Connection

Figure 18: Field Installed Accessory Relay Connection

34 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

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 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 19 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 heat pump units, provided it has the correct number of heating and cooling stages.

Figure 19: Typical Thermostat

Wiring Illustrations

Connection to CXM2 Control

Heat Pump Thermostat

Compressor Y/Y1

Reversing Valve

Fan

Common 24v

24Vac Hot

Fault LED

High Speed Fan G2

CXM2

ALI

Field Wiring

Factory Wiring c l i m a t e m a s t e r.c o m 35

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Blower Performance Data – TRL

Rated

CFM

Max

CFM

Min

CFM

Motor

Speed

Tap

Value

External Static Pressure (in. wg)

0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50

006 225

009 325

012 400

015 500

275 150

425 200

525 300

550 375

Power (W)

CFM

24 25 27 28 30 31 31

230 216 202 188 174 164 153

Power/CFM 0.1 0.12 0.13 0.15 0.17 0.19 0.2

Power (W) 32 33 34 36 38 40 42 43 43

268 258 247 233 220 208 197 188 179 CFM

Power/CFM 0.12 0.13 0.14 0.16 0.17 0.19 0.21 0.23 0.24

Power (W)

CFM

48 50 52 54 56

263 253 242 232 223

0.18 0.2 0.21 0.23 0.25

Power/CFM

Power (W)

CFM

Power/CFM

Power (W)

CFM

34 35 35 37 39 42

65 67

275 266 257

0.23 0.24 0.26

45 46 47

300 290 279 265 251 235 219 212 206

Power/CFM 0.11 0.12 0.13 0.14 0.16 0.18 0.21 0.22 0.23

Power (W)

CFM

Power (W)

CFM

55 56 57 58 59 62 64 66 68

376 366 355 345 335 321 307 295 283

Power/CFM 0.15 0.15 0.16 0.17 0.18 0.19 0.21 0.22 0.24

Power/CFM

Power (W)

CFM

Power/CFM

79 81 82 83 84 86 87 89

422 412 403 394 386 378 363 348

0.19 0.2

0.2 0.21 0.22 0.23 0.24 0.26

104 101

Power (W)

CFM

61 64 67 69 72 78

406 387 368 352 335 326 317

428 412 391 370

0.24 0.25 0.25 0.25

Power/CFM 0.15 0.17 0.18 0.2 0.21 0.23 0.24

Power (W)

CFM

Power (W)

CFM

71 73 75 77 79 82 85 88 91

451 432 413 393 374 354 333 323 313

Power/CFM 0.16 0.17 0.18 0.2 0.21 0.23 0.25 0.27 0.29

Power/CFM

Power (W)

CFM

Power/CFM

96 98 100 102 104 107 110 113

495 478 461 443 426 408 389 369

0.19 0.21 0.22 0.23 0.25 0.26 0.28 0.31

127 129 131 133 134

Power (W) 75

CFM

503 487 471 450 430

0.25 0.27 0.28 0.3 0.31

77 79 80 81 83

450 432 413 397 380 363

Power/CFM 0.17 0.18 0.19 0.2 0.21 0.23

Power (W) 99 101 103 104 106 108

CFM 517 500 483 467 451 435

Power/CFM 0.19 0.2 0.21 0.22 0.24 0.25

Power (W) 125 127 129 130 132 133

CFM 567 555 543 528 512 495

Power/CFM 0.22 0.23 0.24 0.25 0.26 0.27

Power (W)

CFM

Power/CFM

140 142 144 145 146

578 562 550 538 521

0.24 0.25 0.26 0.27 0.28

Black areas denote ESP where operation is not recommended.

CT ECM: Units factory shipped on Speed Tap 2 for Fan-Only and Speed Tap 3 for Heating/Cooling.

All airflow is rated and shown above at the lower voltage if unit is dual voltage rated, e.g. 208V for 208-230V units.

Performance stated is at the rated power supply. Performance may vary as the power supply varies from the rated.

All data is shown wet coil with clean 1” filter. All data is ran at 80 °F DB and 67 °F WB.

CFM Tolerance is +/-10%. Watt Tolerance +/-10%.

Blower performance tested with a 8" x 6" side discharge supply air opening for sizes 006 and 009.

Blower performance tested with a 24" x 6" side discharge supply air opening for sizes 012 and 015.

36 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

TRL Series Wiring Diagram Matrix

All current diagrams can be located online at climatemaster.com.

Click ‘Commercial Professional’.

1. Click ‘Products’ in the main navigation

2. Select ‘Small Packaged Units’

3. Select the TRL product series

4. Click the Wire Diagrams tab in the middle of the page

5. Select your voltage and controls

Control Type

CXM2

CXM2/MPC

Blower Type

Constant Torque

ECM

Voltage

208-230/60/1

TRL 006-015

Wiring Diagram Part Number

96B1001N01

96B1001N02 c l i m a t e m a s t e r.c o m 37

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

CXM2 Controls

CXM2 Control -

Field Configuration Options – Note: In the following field configuration options, jumper wires should be clipped ONLY when power is removed from the CXM2 control.

For detailed control information, see CXM2 Application,

Operation and Maintenance (AOM) manual (part #97B0137N01).

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 CXM2 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.

Water coil low temperature limit setting:

Jumper 3 (JW3-LT1 Low Temp) provides field selection of refrigerant temperature limit setting of 25°F or 10°F [-4°F or -12°C] and leaving water temperature of 30°F and

15°F [-1°C or -9°C].

Refrigerant Temperatures:

Not Clipped = 25°F [-4°C].

Clipped = 10°F [-12°C].

Leaving Water Temperatures:

Not Clipped = 30°F [-1°C].

Clipped = 15°F [-9°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).

Low pressure limit setting: Jumper 3

(JW3-LP switch) provides field selection of pressure limit setting for LP switch.

Each unit comes equipped with one LP1 switch setup at 70psig cut-out and one

LP2 switch setup at 45psig cut-out.

CXM2 board will ignore one based on

JW3 jumper status.

Not clipped = Ignore LP2.

Clipped = Ignore LP1

38 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

CXM2 Controls, Cont’d.

DIP Switches – Note: In the following field configuration options, DIP switches should only be changed when power is removed from the CXM2 control.

DIP Package #1 (S2) – DIP Package

#1 has 5 switches and provides the following setup selections:

1.1 - Unit Performance Sentinel (UPS) disable: DIP Switch 1.1 provides field selection to disable the UPS feature.

On = Enabled. Off = Disabled.

1.2 Compressor relay staging operation: DIP 1.2 provides selection of compressor relay staging operation. The compressor relay can be selected to turn on with a stage 1 or stage 2 call from the thermostat. This is used with dual stage units (2 compressors where 2 CXM2 controls are being used) or with leader/ follower applications. In leader/follower 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 Communications configuration:

Provides selection of the CXM2 operation in a communicating system. The CXM2 may operate as a communicating leader or follower device depending on the network configuration. In most configurations, the CXM2 will operate as a leader device.

On = Communicating Follower device

(default).

Off = Communicating Leader device.

1.4 DDC Output at EH2 - DIP Switch

1.4 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, then the EH2 will operate as standard electric heat output.

On = EH2 Normal.

Off = DDC Output at EH2.

1.5 Fault Lockout - Normal position is On. Do not change selection unless instructed to do so by the Factory.

On = CXM2 will lockout after a single LT1 or LT2 freeze protection fault.

Off = CXM2 will not lockout until after 3

LT1 or LT2 freeze protection faults.

⚠ CAUTION!

⚠

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

c l i m a t e m a s t e r.c o m 39

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

CXM2 Controls, Cont’d.

Table 5: LED and Alarm Relay Output Table

CXM2 is non-functional

CXM2 CONTROLLER FAULT CODES

CXM2 Status LED Operation with Test

Mode Not Active

Fault LED

(Red)

Off

Status LED

(Green)

Off

Normal operation -

No active communication

Normal operation -

With active communication

Control is currently in fault retry mode

Very Slow Flash

Slow Flash

–

Fast Flash – Control is currently locked out

Control is currently in an over / under voltage condition

(ESD) Emergency shutdown condition recognized

Slow Flash

–

Flashing Code 3

Invalid thermostat input combination

CXM2 Status LED Operation with

Test Mode Not Active

No fault since power up in memory

High pressure fault in memory

Low pressure fault in memory

Low temperature protection

1 fault in memory

Low temperature protection

2 fault in memory

Condensate overflow fault in memory

Over / Under voltage fault in memory

UPS warning in memory

UPT fault in memory

Low water flow fault

Leaving water temperature low fault

Test mode active

–

Fault LED

(Red)

Flashing Code 1

Flashing Code 2

Flashing Code 3

Flashing Code 4

Flashing Code 5

Flashing Code 6

Flashing Code 7

Flashing Code 8

Flashing Code 9

Flashing Code 13

Flashing Code 14

–

Flashing Code 4

Status LED

(Green)

–

Fast Flash

Alarm Relay

Open

Cycling Code 5

Cycling Code 6

Cycling Code 7

Cycling Code 8

Cycling Code 9

Cycling Code 13

Cycling Code 14

–

– 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

Open

Closed

Open (Closed after 15 min.)

Closed

Open (Closed after 15 min.)

Alarm Relay

Cycling Code 1

Cycling Code 2

Cycling Code 3

Cycling Code 4

40 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

CXM2 Controls, Cont’d.

CXM2 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.

Note: Please refer to the thermostat and fan speed sequence of operations table 6 determine unit blower speed operation.

Table 6: Thermostat and Fan Speed Sequence of Operations

Conventional

T-stat signal (Non-

Communicating)

G, Y1

G, Y1, O

Operating Mode

Fan Only

Compressor Heat

Compressor Cool

ECM Fan

Speed

Setting

Low Speed

Fan

High Speed

Fan

Medium

Speed Fan

Medium

Speed Fan

Speed

Tap

Blower

Motor

Connection

Pin

G2, Y1 4 1

G2, Y1, O 4 1 c l i m a t e m a s t e r.c o m 41

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

CXM2 Controls, Cont’d.

Figure 20: Test Mode Button

42 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Safety Features – CXM2 Controls

Safety Features – CXM2 Control

The safety features below are provided to protect the compressor, heat exchangers, wiring, and other components from damage caused by operation outside of design conditions.

Anti-short cycle protection: The control features a 5 minute anti-short cycle protection for the compressor.

Note: The 5 minute anti-short cycle also occurs at power up and is triggered every time that the compressor goes into off cycle.

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. NOTE: this feature is true for all faults except the ones related to freeze protection (low flow, low water temperature and low pressure).

Random start: The control features a random start upon power up of 5-80 seconds.

Lockout: In lockout mode, the status LED will begin fast flashing. The compressor relay is turned off immediately. Lockout mode can be “soft” reset by turning off the thermostat (or satisfying the call). A

“soft” reset keeps the fault in memory but resets the control. A “hard” reset

(disconnecting power to the control) resets the control and erases fault memory. Note: Soft reset does not apply for lockout caused by low pressure or low flow.

High pressure switch: When the high pressure switch opens due to high refrigerant pressures, the compressor relay is de-energized immediately since the high pressure switch is in series with the compressor contactor coil. The high pressure fault recognition is immediate

(does not delay for 30 continuous seconds before de-energizing the compressor).

High pressure lockout code = 2

Example: 2 quick flashes, 10 sec pause, 2 quick flashes, 10 sec. pause, etc.

Low pressure switch: If the low pressure switch is open during "on" cycle it will be recognized as a low pressure fault and shut off the compressor immediately. If the

LP switch is open prior the compressor power up, it will be considered as LP (loss of charge) fault. There is no ignoring time at start up since the limits are low enough to avoid nuisance trips. The fault will cause a lockout condition that will remain until pressure rises above the threshold and the unit power is cycled.

Low pressure lockout code = 3

Water coil low temperature (LT1/LWT):

The LT1 thermistor temperature must be below the selected low temperature limit setting to be considered as a LT1 fault.

There is no continuous reading needed to create a fault signal and there is not ignoring time during start up. The LWT thermistor temperature must be below the selected low temperature limit setting to be considered as a LWT fault. There is no continuous reading needed to create a fault signal and there is not ignoring time during start up. A LT1 fault and a

LWT fault are needed in order to send unit into lockout mode. WARNING! If you are receiving a fault code 4 or suspect the braze plate water heat exchanger is frozen, DO NOT run the unit in cooling mode during diagnosis as it could critically damage the heat exchanger.

LT1 lockout code = 4 c l i m a t e m a s t e r.c o m 43

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Safety Features – CXM2 Controls, Cont’d.

Air coil low temperature (LT2): The LT2 thermistor temperature must be below the selected low temperature limit setting for 30 continuous seconds during a compressor run cycle to be recognized as a LT2 fault. The LT2 input is bypassed for the initial 60 seconds of a compressor run cycle. LT2 is set at the factory for one try.

Therefore, the control will go into lockout mode once the LT2 fault has occurred.

LT2 lockout code = 5

Condensate overflow: The condensate overflow sensor must sense overflow level for 30 continuous seconds to be recognized as a CO fault. Condensate overflow will be monitored at all times.

CO lockout code = 6

Over/under voltage shutdown: An over/ under voltage condition exists when the control voltage is outside the range of

19VAC to 30VAC. Over/under voltage shut down is a self-resetting safety. If the voltage comes back within range for at least 0.5 seconds, normal operation is restored. This is not considered a fault or lockout. If the CXM2 is in over/under voltage shutdown for 15 minutes, the alarm relay will close.

Over/under voltage shut down code = 7

Unit Performance Sentinel-UPS: The UPS feature indicates when the heat pump is operating inefficiently. A UPS condition exists when: a. In heating mode with compressor energized, LT2 is greater than 125°F

[52°C] for 30 continuous seconds, or: b. In cooling mode with compressor energized, LT1 is greater than 125°F

[52°C] for 30 continuous seconds, or: c. In cooling mode with compressor energized, LT2 is less than 40°F

[4.5°C] for 30 continuous seconds.

If a UPS condition occurs, the control will immediately go to UPS warning. The status LED will remain on as if the control is in normal mode. Outputs of the control, excluding LED and alarm relay, will NOT be affected by UPS. The UPS condition cannot occur during a compressor off cycle. During UPS warning, the alarm relay will cycle on and off. The cycle rate will be “on” for 5 seconds, “off” for 25 seconds, “on” for 5 seconds, “off” for 25 seconds, etc.

UPS warning code = 8

Swapped LT1/LT2 thermistors: During test mode, the control monitors to see if the LT1 and LT2 thermistors are in the appropriate places. If the control is in test mode, the control will lockout with code 9 after 30 seconds if: a. The compressor is on in the cooling mode and the LT1 sensor is colder than the LT2 sensor, or: b. The compressor is on in the heating mode and the LT2 sensor is colder than the LT1 sensor.

Swapped LT1/LT2 thermistor code = 9.

ESD (CXM2 only): The ESD (Emergency

Shut Down) mode can be enabled from an external common signal to terminal

ESD to shut down the unit. The green status light will flash code 3 when the unit is in ESD mode.

ESD mode = code 3 (green “status” LED)

Low flow protection: The unit is equipped with a flow switch to proof there is enough flow on the water loop to run the compressor, especially during extreme cold conditions. If the flow switch contact is open for 10 continuous seconds, CXM2 will send the compressor into an off cycle, however, if flow conditions are not improved and the contact remains open for 50 continuous seconds, CXM2 will

44 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Safety Features – CXM2 Controls, Cont’d.

go into lockout mode. On the contrary, if sufficient flow is detected for 10 continuous seconds where the contact is closed and there is Y1 demand, the compressor on cycle will come back up after ASC. The fault will cause a lockout condition that will remain until flow rises above the threshold and the unit power is cycled.

Diagnostic Features

The green status LED and red fault LED on the CXM2 board advise the technician of the current status of the CXM2 control.

The fault LED will ALWAYS flash a code representing the LAST fault in memory.

If there is no fault in memory, the fault

LED will flash Code 1. CAUTION: Do not restart units without inspection and remedy of faulting condition. Damage may occur.

CXM2 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.

c l i m a t e m a s t e r.c o m 45

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

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 7 for operating limits.

Commissioning Conditions

Starting conditions vary depending upon model and are based upon the following notes:

Notes:

1. Conditions in Table 8 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 7: Operating Limits

Operating Limits

Cooling

TRL

Heating

Air Limits

Min. ambient air, DB

Rated ambient air, 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*

45°F [7°C]

80.6°F [27°C]

130°F [54.4°C]

65/50°F [18/10°C]

80.6/66.2°F [27/19°C]

95/75°F [35/24°C]

39°F [4°C]

68°F [20°C]

85°F [29°C]

45°F [7.2°C]

68°F [20°C]

80°F [27°C]

30°F [-1°C] 20°F [-6.7°C]

50-110°F [10-43°C]

120°F [49°C]

30-70°F [-1 to 21°C]

90°F [32°C]

2.25 to 4.5 gpm/ton

[1.6 to 3.2 l/m per kW]

* Except when identified on model-specific performance envelop

46 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Unit Starting and Operating Conditions

Table 8: Building Commissioning Limits

Commissioning Limits

Air Limits

Min. ambient air, DB

Rated ambient air, DB

Max. ambient air, DB

Min. entering air, DB/WB

Rated entering air, DB/WB

Max. entering air, DB/WB

Water Limits

Min. entering water

Normal entering water

Max. entering water

Normal Water Flow

Cooling

45°F [7°C]

80.6°F [27°C]

130°F [54.4°C]

50/45°F [10/7°C]

80.6/66.2°F [27/19°C]

110/83°F [43/28°C]

Heating

39°F [4°C]

68°F [20°C]

85°F [29°C]

40°F [4.5°C]

68°F [20°C]

80°F [27°C]

30°F [-1°C] 20°F [-6.7°C]

50-110°F [10-43°C]

120°F [49°C]

30-70°F [-1 to 21°C]

90°F [32°C]

2.25 to 4.5 gpm/ton

[1.6 to 3.2 l/m per kW] c l i m a t e m a s t e r.c o m 47

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Water Quality Standards

Water Quality Standards

Clean water is essential to the performance and life span of water source heat pumps.

Contaminants, chemicals, and minerals all have the potential to cause damage to the water heat exchanger if not treated properly. All closed water loop systems should undergo water quality testing and be maintained to the water quality standards listed in this table.

CLIMATEMASTER WATER QUALITY STANDARDS

For Closed-Loop and Open-Loop Systems

Heat Exchanger Type

Desc rip�on pH - Chilled Water < 8 pH - Heated Water > 8

° F

Symbol

(Cl

(TDS)

(SO

(NO

(Cl)

)

S) ppm - CaCO

equiv.

)

) ppm p m

Units

Alkalinity

Calcium

Magnesium

Total Hardness

equiv.

(Ca)

(Mg) ppm ppm

(CaCO3) ppm - CaCO3 equiv.

Langelier Satura � on Index LSI

Ryznar Stability I n d e x

Total Dissolved Solids

Sulfate

Nitrate

Chlorine (free)

Chloride (water < 80°F)

Chloride (water > 120°F)

Hydrogen Sul ﬁ de α p ppm ppm ppm p p b

Carbon Dioxide

Iron Oxide

Manganese

Ammonia

Chloramine

(CO

(Fe)

(NH

(Mn)

(NH

)

) ppm ppm ppm ppm

CL) ppm

Closed Loop

Recirc ula�ng

All Heat Exchanger

Types

8 .

0 to 9.0

to 10.0

50 to 500

<100

30 to 150

-0.5 to +0.5

6 .

<1000

<200

to 8.0

1 0

<0.5

<20

0 .

<1.0

< 0.4

<0.05

Open Loop, Tower, Ground Source Well

COAXIAL HX Copper

Tube in Tube

7.0 to 9.0

8.0 to 10.0

50 to 500

<100

150 to 450

-0.5 to +0.5

6.5 to 8.0

<1000

<200

< 1 0 0

<0.5

<20

0 .

<50

<1.0

<0.4

<0.1

COAXIAL HX

Cupronickel

7.0 to 9.0

8.0 to 10.0

50 to 500

<100

150 to 450

-0.5 to +0.5

6.5 to 8.0

<1000

<200

< 1 0 0

<0.5

<150

<125

< 0 .

10 to 50

<1.0

<0.4

<0.1

Brazed Plate HX

316 SS

7.0 to 9.0

8.0 to 10.0

50 to 500

<100

150 to 450

-0.5 to +0.5

6.5 to 8.0

<1500

<200

< 1 0 0

<0.5

<150

<125

< 0 .

10 to 50

<0.2

<0.4

<0.1

Iron B a c t e ir a

Slime Forming B a

Sulfate reducing b

Suspended Solids β c t e a c t e ir a ir a

Earth Ground Resistance χ

Electrolysis Voltage δ

Leakage Current δ

( T S S ) c e e l l c p p c e l sl sl sl m

/ m m m

O h m s m V m A

1 0

< 3

0 0

1 5

1 0 <

Consult NEC & local electrical codes for grounding requirements

Measure voltage internal water loop to HP ground

Measure current in water loop pipe

Building Primary Electrical Ground to unit, must meet local diameter and penetra � on length requirements

Do not connect heat pump to steel pipe unless dissimilar materials are separated by using Di-electric unions. Galvanic corrosion of heat pump water pipe will occur.

48 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

1. The ClimateMaster Water Quality

Table provides water quality requirements for coaxial & brazed plate heat exchangers.

2. The water must be evaluated by an independent testing facility comparing site samples against this Table. When water properties are outside of these parameters, the water must either be treated by a professional water treatment specialist to bring the water quality within the boundaries of this specification, or an external secondary heat exchanger must be used to isolate the heat pump water system from the unsuitable water. Failure to do so will void the warranty of the heat pump system and will limit liability for damage caused by leaks or system failure.

3. Regular sampling, testing and treatment of the water is necessary to assure that the water quality remains within acceptable levels thereby allowing the heat pump to operate at optimum levels.

4. If closed‐loop systems are turned off for extended periods, water samples must be tested prior to operating the system.

5. For optimal performance, it is recommended that the closed‐loop piping systems are initially filled with de‐ionized water.

6. Well water with chemistry outside of these boundaries, and salt water or brackish water requires an external secondary heat exchanger. Surface/

Pond water should not be used.

7. If water temperature is expected to fall below 40°F, antifreeze is required. Refer to the heat pump

IOM for the correct solution ratios to prevent freezing.

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Water Quality Standards, Cont’d.

α Hydrogen Sulfide has an odor of rotten eggs. If one detects this smell, a test for H2S must be performed. If H2S is detected above the limit indicated, remediation is necessary (Consult with your Water

Testing/Treatment Professional) or a secondary heat exchanger is required using appropriate materials as recommended by the heat exchanger supplier.

β Suspended solids and particulates must be filtered to prevent fouling and failure of heat exchangers.

Strainers or particulate filters must be installed to provide a maximum particle size of 600 micron (0.60 mm, 0.023 in.) using a 20 to 30 mesh screen size. When a loop is installed in areas with fine material such as sand or clay, further filtration is required to a maximum of 100 micron. Refer to the Strainer / Filter

Sizing Chart to capture the particle sizes encountered on the site.

χ An electrical grounding system using a dedicated ground rod meeting

NEC and Local Electrical codes must be installed. Building Ground must not be connected the WSHP piping system or other plumbing pipes.

δ Refer to IOM for instructions on measuring resistance and leakage currents within water loops.

Do not use PVC pipe for water loop

(compressor POE oil and glycols damage PVC) use of HDPE pipe is recommended.

c l i m a t e m a s t e r.c o m 49

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Water Quality Standards, Cont’d.

Mesh Size

100

150

200 ppm = parts per million ppb = parts per billion

Strainer / Filter Sizing

Particle Size

Microns

840

533

0.840

0.533

250

149

100

0.250

0.149

0.100

0.074

Inch

0.0340

0.0210

0.0100

0.0060

0.0040

0.0029

Measuring Earth Ground Resistance

0.02

�

Building

Ground Rod

Well Casing

OHM meter

Measure the earth ground bond using an Ohm meter between the building’s ground rod and the steel well casing.

The resistance measured should be zero Ohms. The NEC allows a resistance to ground up to 20 Ohms. Any resistance above zero, indicates a poor earth ground which may be the result of a hot neutral line or that conductive water is present. Both of these may lead to electrolysis and corrosion of the heat pump piping. A check for both should be performed and resolved.

Note if the well casing is plastic, a conductive path can be achieved by inserting a #6 AWG bare copper wire into the well water. Remove the temporary conductor when finished.

C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Water Quality Standards, Cont’d.

Measuring Electrolysis Voltage and Current

300mV

Heat Pump

HP Piping

Volt Meter

Pete's Port

Water-out

Wire Electrode inserted into port for

Voltage measurement

Water-in

Amp Sensor to VOM for Current

Measure the electrolysis voltage using a volt meter between the heat pump ground and #14 AWG solid copper wire electrode inserted into the water using a Pete’s style access port.

The HP must be operating and the water stream flowing.

The voltage measured should be less than 300mV (0.300 V). If higher than

500mV, electrolysis will occur and corrosion will result.

If voltage is measured, the cause is a high resistance earth ground or current on the neutral conductor. Remedial measures should be performed.

Measure the current flowing through the piping system by using an amp clamp probe on the water-in line. The HP must be operating and the water stream flowing.

There should be zero amps measured. If current is present, there is leakage current to the plumbing system and it must be rectified to prevent pipe corrosion.

c l i m a t e m a s t e r.c o m 51

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Pipe System Cleaning and Flushing

Piping System Cleaning and Flushing efficient operation of the system.

clean and flush the system:

Cleaning and flushing the WLHP piping system is the single most important step to ensure proper start-up and continued

Follow the instructions below to properly

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 requires a strainer with a #20 stainless steel wire mesh for each unit). 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 85°F

[29°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. Remove system and unit strainers.

Clean strainers free of any dirt or blockages. Reinstall strainers.

10. Test the system pH with litmus paper. The system water should be in the range of pH 7.0 - 9.0 (see water quality table). Add chemicals, as appropriate to maintain neutral pH levels.

11. 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.

⚠ CAUTION!

⚠

CAUTION! 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.

C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Piping System Cleaning and Flushing, Cont’d.

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. c l i m a t e m a s t e r.c o m 53

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Unit and System Checkout

⚠ WARNING!

⚠

WARNING!

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 FEATURES

 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 Tables

7 and 8.

 Low water temperature cutout:

Verify that low water temperature cut-out on the CXM2 control is not clipped .

 Unit fan: Manually rotate fan to verify free rotation and ensure that blower wheel is secured to the motor shaft. Be sure to remove any shipping supports if needed. DO

NOT oil motors upon start-up. Fan motors are pre-oiled at the factory.

Check unit fan speed selection and compare to design requirements.

 Condensate line: Verify that condensate line is open and properly pitched toward drain .

 Water flow balancing: Record inlet and outlet water temperatures for each heat pump upon startup. This check can eliminate nuisance trip outs and high velocity water flow that could erode heat exchangers.

 Unit air coil and filters: Ensure that filter is clean and accessible. Clean air coil of all manufacturing oils .

 Unit controls: Verify that CXM2 field selection options are properly set.

SYSTEM CHECKOUT

 System water temperature: Check water temperature for proper range and also verify heating and cooling set points for proper operation.

 System pH: Check and adjust water pH if necessary to maintain a level between 6 and 8.5. Proper pH promotes longevity of hoses and fittings (see water quality table).

 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.

54 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Unit and System Checkout, Cont’d.

 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 .

 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 heat exchanger 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.

c l i m a t e m a s t e r.c o m 55

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

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 minimum-maximum ranges of Tables 7 and 8. During start-up checks, loop water temperature entering the heat pump should be between 60°F [16°C] and 95°F [35°C].

5. Two factors determine the operating limits of ClimateMaster heat pumps,

(a) return air temperature/flow, and

(b) water temperature/flow. When any one of these factors is at a minimum or maximum level, the other factor must be at normal level to ensure proper unit operation.

a. Adjust the unit thermostat to the warmest setting. Place the thermostat mode switch in the

“COOL” position. Slowly reduce thermostat setting until the compressor activates.

b. Check for cool air delivery at the unit grille within a few minutes after the unit has begun to operate.

Note: Units have a five minute time delay in the control circuit that can be eliminated on the CXM2 control board as shown below in Figure 18. See controls description for details.

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 & comparing to Table 9. The unit must have enough flow as per the flow switch setpoint in order for the compressor to start.

56 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 7 and 8. 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 9. 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 9. 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.

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.

C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Unit Start-Up Procedure, Cont’d.

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 Tables 7 and 8.

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 10. Verify correct water flow by comparing unit pressure drop across the heat exchanger versus the data in Table 9. 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 9. 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 CXM2 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.

Figure 21: Test Mode Button

Push test button to enter Test

Mode and speed-up timing and delays for 20 minutes.

LT1

LT2

LT1

LT2

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Unit Start-Up Procedure, Cont’d.

Motorized Water Valve Option Corrections

Model

Flow

Coefficient

(2Way) Cv

Max. Close-

Off Pressure

(MOPD)

GPM

WPD Adders

PSI

TRL006

TRL009

TRL012

TRL015

4.9

0 - 125 psi

1.50

1.88

2.25

1.69

2.25

2.81

2.25

3.00

3.75

2.81

3.75

4.69

0.09

0.15

0.21

0.12

0.21

0.33

0.21

0.37

0.59

0.33

0.59

0.92

0.21

0.35

0.49

0.28

0.49

0.76

0.49

0.85

1.36

0.76

1.36

2.13

Table 9: TRL Braze Plate Water Pressure Drop

Model

006

009

012

015

2.25

3.8

2.8

3.8

4.7

U.S.

GPM

1.5

1.88

2.25

1.69

2.25

2.8

l/s

0.09

0.12

0.14

0.11

0.14

0.18

0.14

0.19

0.24

0.18

0.24

0.30

Pressure Drop, psi [kPa]

30°F [-1°C] 50°F [10°C] 70°F [21°C] 90°F [32°C]

1.4

2.0

2.6

4.3

6.0

3.3

2.5

1.9

2.9

4.0

5.6

7.8

0.6

0.9

1.1

1.4

2.5

3.6

2.2

3.8

5.4

2.7

5.0

7.1

2.3

3.3

2.0

3.5

0.4

0.6

0.8

1.3

5.0

2.5

4.8

6.9

2.3

3.3

1.9

3.4

0.5

0.7

1.0

1.3

4.9

2.5

4.7

6.8

⚠ WARNING!

⚠

WARNING! When the disconnect switch is closed, high voltage is present in some areas of the electrical panel. Exercise caution when working with energized equipment.

⚠ CAUTION!

⚠

CAUTION!

Verify that ALL water control valves are open and allow water flow prior to engaging the compressor. Freezing of the braze plate or water lines can permanently damage the heat pump.

58 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Unit Operating Conditions

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.

Table 10: TRL Series Typical Unit Operating Pressures and Temperatures

Airflow

(CFM)

225

006

Entering

Water

Temp F

30*

100

110

Water

Flow

GPM

Full Load Cooling - EAT: 80/67°F [27/19°C]

Suction

Pressure

PSIG

Superheat

Subcooling

Water

Temp

Rise F

Air

Temp

Drop F

Full Load Heating - EAT: 70°F [21°C]

Suction

Pressure

PSIG

Superheat

1.5

117 - 127 20 - 33 10 - 14 11 - 13 20 - 26 82 - 88 9 - 12

1.88 117 - 127 20 - 33 10 - 13 9 - 10 20 - 26 83 - 90 9 - 12

2.25 117 - 127 20 - 34 9 - 13 7 - 8 20 - 27 83 - 90 9 - 12

1.5

121 - 131 16 - 26 10 - 14 11 - 13 20 - 26 98 - 106 8 - 10

1.88 121 - 131 16 - 27 10 - 13 9 - 10 20 - 26 100 - 108 8 - 11

2.25 121 - 131 17 - 28 9 - 13 7 - 8 20 - 27 100 - 108 8 - 11

1.5

125 - 135 12 - 20 10 - 14 11 - 13 20 - 26 115 - 125 7 - 9

1.88 125 - 135 12 - 21 10 - 13 9 - 10 20 - 26 118 - 127 7 - 9

2.25 125 - 135 13 - 21 9 - 13 7 - 8 20 - 27 118 - 127 7 - 9

1.5

129 - 139 9 - 15 10 - 14 11 - 13 20 - 26 133 - 145 7 - 9

1.88 129 - 139 9 - 15 10 - 13 9 - 10 20 - 26 136 - 147 7 - 9

2.25 129 - 139 9 - 16 9 - 13 7 - 8 20 - 27 136 - 147 7 - 9

1.5

132 - 144 7 - 11 10 - 14 10 - 12 19 - 25 152 - 164 8 - 10

1.88 132 - 144 7 - 12 10 - 13 8 - 9 19 - 25 155 - 168 8 - 11

2.25 132 - 144 7 - 12 9 - 13 6 - 7 19 - 26 155 - 168 8 - 11

1.5

135 - 147 6 - 10 10 - 14 10 - 12 19 - 25 170 - 184 9 - 12

1.88 135 - 147 6 - 10 10 - 13 8 - 9 19 - 25 173 - 188 9 - 12

2.25 135 - 147 6 - 11 9 - 13 6 - 7 19 - 26 173 - 188 9 - 12

1.5

138 - 150 5 - 9 10 - 14 10 - 12 18 - 24 189 - 205 9 - 13

Subcooling

Air

4 - 5

2 - 4

3 - 4

2 - 4

3 - 4

2 - 4

3 - 5

4 - 5

3 - 5

4 - 5

3 - 5

2 - 4

3 - 4

2 - 2

1.88 138 - 150 5 - 9 10 - 13 8 - 9 18 - 24 193 - 209 10 - 13 2 - 2

2.25 138 - 150 6 - 9 9 - 13 6 - 7 18 - 24 193 - 209 10 - 13 2 - 3

1.5

141 - 153 5 - 9 10 - 14 9 - 11 18 - 24 209 - 227 11 - 15

1.88 141 - 153 5 - 9 10 - 13 7 - 8 18 - 24 213 - 231 11 - 15

2.25 141 - 153 6 - 9 9 - 13 6 - 6 18 - 24 213 - 231 11 - 15

1.5

144 - 156 6 - 10 10 - 14 9 - 11 17 - 23

1.88 144 - 156 6 - 10 10 - 13 7 - 8 17 - 23

2.25 144 - 156 6 - 11 9 - 13 6 - 6 17 - 23

1 - 3 10 - 12 35 - 43

1 - 3

8 - 9

6 - 7

35 - 43

36 - 44

Water

Temp

Rise F

Temp

Drop F

1 - 3 17 - 21

3 - 4 17 - 21

3 - 3 18 - 22

5 - 7 20 - 24

4 - 5 20 - 24

3 - 4 20 - 25

6 - 8 23 - 28

5 - 6 23 - 28

4 - 5 23 - 28

6 - 8 25 - 31

5 - 6 25 - 31

4 - 5 26 - 32

7 - 9 28 - 34

6 - 7 28 - 34

4 - 5 29 - 35

8 - 10 31 - 37

6 - 8 31 - 38

5 - 6 32 - 39

9 - 11 33 - 41

7 - 8 34 - 41

6 - 7 34 - 42

* Based on 15% Methanol antifreeze solution.

c l i m a t e m a s t e r.c o m 59

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Unit Operating Conditions, Cont’d.

Table 10, cont’d.: TRL Series Typical Unit Operating Pressures and Temperatures

Airflow

(CFM)

300

009

Entering

Water

Temp F

30*

100

110

Water

Flow

GPM

Full Load Cooling - EAT: 80/67°F [27/19°C]

Suction

Pressure

PSIG

Superheat

Subcooling

Water

Temp

Rise F

Air

Temp

Drop F

Full Load Heating - EAT: 70°F [21°C]

Suction

Pressure

PSIG

Superheat

Subcooling

1.69 120 - 130 15 - 25 3 - 5 14 - 16 20 - 26 77 - 83 11 - 15 2 - 4

2.25 109 - 119 23 - 38 6 - 8 10 - 12 19 - 25 80 - 86 11 - 15 2 - 4

2.8

109 - 119 23 - 39 6 - 8 8 - 9 19 - 25 81 - 88 11 - 15 2 - 4

1.69 121 - 131 14 - 23 5 - 7 14 - 16 19 - 25 94 - 102 10 - 14 2 - 4

2.25 114 - 124 18 - 30 6 - 8 10 - 12 19 - 25 97 - 105 10 - 14 2 - 4

2.8

114 - 124 19 - 31 6 - 8

2.8

118 - 128 15 - 24 7 - 9

8 - 9 19 - 25 99 - 107 11 - 14

1.69 122 - 132 11 - 19 7 - 9 13 - 15 19 - 25 110 - 120 9 - 13

2 - 4

2.25 118 - 128 14 - 24 7 - 9 10 - 12 19 - 25 114 - 124 10 - 14 2 - 4

8 - 9 19 - 25 117 - 126 11 - 14

1.69 124 - 134 11 - 18 8 - 10 13 - 15 18 - 24 128 - 138 9 - 13

2 - 4

2.25 123 - 133 11 - 18 7 - 9 10 - 12 19 - 25 132 - 142 10 - 14 2 - 4

2.8

123 - 133 11 - 18

Water

Temp

Rise F

Air

Temp

Drop F

1 - 2 17 - 21

4 - 4 18 - 22

3 - 3 18 - 22

6 - 8 21 - 25

5 - 6 21 - 25

3 - 4 21 - 26

7 - 9 23 - 29

5 - 7 23 - 29

4 - 5 24 - 29

7 - 9 8 - 9 19 - 25 134 - 145 11 - 14 2 - 4

1.69 126 - 136 9 - 15 9 - 12 13 - 15 18 - 24 144 - 156 10 - 14 2 - 4

2.25 127 - 137 8 - 14

2.8

127 - 137 8 - 14

8 - 10 25 - 31

6 - 8 26 - 32

5 - 6 26 - 32

9 - 11 28 - 34

7 - 9

9 - 11 18 - 24 149 - 161 11 - 15

7 - 8 18 - 24 152 - 164 11 - 15

2 - 4

6 - 8 28 - 34

5 - 6 28 - 34

1.69 129 - 139 8 - 14 9 - 13 13 - 15 17 - 23 160 - 174 11 - 15 2 - 4 10 - 12 30 - 36

2.25 131 - 141 7 - 11 8 - 10 9 - 11 18 - 24 166 - 180 12 - 16 2 - 4

2.8

131 - 141 7 - 12 7 - 10 7 - 8 18 - 24 169 - 184 12 - 17 2 - 4

7 - 9 30 - 36

6 - 7 30 - 37

1.69 132 - 144 8 - 13 9 - 13 12 - 14 16 - 22 177 - 191 13 - 17 2 - 4 10 - 12 32 - 39

2.25 134 - 146 6 - 10

2.8

134 - 146 6 - 10

1.69 136 - 148 8 - 13 9 - 12 12 - 14 15 - 21 192 - 208 14 - 20 2 - 4 11 - 13 33 - 41

2.25 137 - 149 6 - 10

2.8

137 - 149 6 - 10

7 - 9

9 - 11 17 - 23 183 - 199 14 - 18 2 - 4

7 - 8 17 - 23 187 - 203 14 - 19 2 - 4

9 - 11 17 - 23 202 - 218 15 - 21

1.69 140 - 152 8 - 13 8 - 10 11 - 13 15 - 21

2.25 140 - 152 7 - 11

2.8

140 - 152 7 - 12

7 - 9

8 - 10 16 - 22

6 - 7 16 - 22

2 - 4

7 - 8 17 - 23 206 - 223 16 - 21 2 - 4

8 - 10 32 - 39

6 - 8 32 - 39

9 - 11

7 - 8

33 - 41

34 - 41

* Based on 15% Methanol antifreeze solution.

Airflow

(CFM)

400

012

Entering

Water

Temp F

30*

100

110

Water

Flow

GPM

2.25 128 - 138 10 - 16 4 - 6 15 - 17 20 - 26 89 - 97 8 - 10

3.75 135 - 147 2 - 4

2.25 136 - 148 5 - 9 11 - 15 13 - 15 17 - 23 165 - 179 12 - 16 2 - 4 11 - 13 32 - 39

Full Load Cooling - EAT: 80/67°F [27/19°C]

Suction

Pressure

PSIG

135 - 147 5 - 8

5 - 8

138 - 150 4 - 6

3.75 138 - 150

140 - 152

3.75 140 - 152

142 - 154

3.75 142 - 154

Superheat

2.25 129 - 139 8 - 14

124 - 134 13 - 21 7 - 9 11 - 13 19 - 25 108 - 116 9 - 12

3 129 - 139 9 - 15

3.75 129 - 139 9 - 15

132 - 144 7 - 11

3.75 132 - 144 7 - 12

4 - 6

5 - 9

Subcooling

112 - 122 24 - 40 9 - 13

3.75 112 - 122 25 - 41 9 - 12

7 - 9 10 - 12 19 - 25 124 - 134 9 - 13

7 - 9

2.25 132 - 142 7 - 11 9 - 12 14 - 16 19 - 25 134 - 146 10 - 14 2 - 4

7 - 9

9 - 12

8 - 11

10 - 14

10 - 13

12 - 16

11 - 15

Water

Temp

Rise F

8 - 9

8 - 9 18 - 24 161 - 174 11 - 15

9 - 11

7 - 8

9 - 11

Air

Temp

Drop F

10 - 12 19 - 25

2.25 143 - 155 5 - 9 13 - 17 12 - 14 16 - 22

16 - 22

7 - 8 16 - 22

Full Load Heating - EAT: 70°F [21°C]

Suction

Pressure

PSIG

2.25 127 - 137 11 - 18 2 - 4 15 - 17 20 - 26 75 - 81

78 - 84

Superheat

7 - 9

8 - 10

8 - 9 19 - 25 79 - 86 8 - 11

3 118 - 128 18 - 30 8 - 10 11 - 13 19 - 25 92 - 100 8 - 10

3.75 118 - 128 19 - 31 7 - 10 9 - 10 19 - 25 94 - 102 8 - 11

6 - 8 14 - 16 20 - 26 105 - 113 9 - 12

3.75 124 - 134 13 - 22 7 - 9 9 - 10 19 - 25 110 - 119 9 - 12

2.25 130 - 140 8 - 13 8 - 10 14 - 16 19 - 25 119 - 129 9 - 13

19 - 25 126 - 137 10 - 13

10 - 12 19 - 25 140 - 152 10 - 14

8 - 9 19 - 25 143 - 155 11 - 14

10 - 12 18 - 24 175 - 189 13 - 17

17 - 23 194 - 210 14 - 18

17 - 23 198 - 214 14 - 19

Subcooling

2 - 4

2 - 2

2 - 4

8 - 10 10 - 12 18 - 24 157 - 171 11 - 15 2 - 4

7 - 10

2 - 4

8 - 9 18 - 24 178 - 193 13 - 18 2 - 4

2 - 4

Water

Temp

Rise F

1 - 2 18 - 22

7 - 9

6 - 7

8 - 10

9 - 11

7 - 8

Air

Temp

Drop F

5 - 6 19 - 23

3 - 4 19 - 23

6 - 8 21 - 25

5 - 6 22 - 26

3 - 4 22 - 27

7 - 9 23 - 29

5 - 7 23 - 29

4 - 5 24 - 29

8 - 10 26 - 32

6 - 8 26 - 32

5 - 6 26 - 32

9 - 11 28 - 34

29 - 35

29 - 36

2.25 134 - 146 6 - 10 10 - 14 13 - 15 18 - 24 150 - 162 11 - 15 2 - 4 10 - 12 30 - 36

6 - 8

31 - 37

31 - 38

32 - 40

33 - 40

2.25 139 - 151 5 - 9 12 - 16 12 - 14 17 - 23 181 - 197 13 - 17 2 - 4 12 - 14 33 - 41

9 - 11 34 - 42

7 - 8 35 - 42

* Based on 15% Methanol anitfreeze solution.

60 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Unit Operating Conditions, Cont’d.

Table 10, cont’d.: TRL Series Typical Unit Operating Pressures and Temperatures

Airflow

(CFM)

500

015

Entering

Water

Temp F

30*

100

110

Water

Flow

GPM

Full Load Cooling - EAT: 80/67°F [27/19°C]

Suction

Pressure

PSIG

Superheat

Subcooling

Water

Temp

Rise F

Air

Temp

Drop F

Full Load Heating - EAT: 70°F [21°C]

Suction

Pressure

PSIG

Superheat

2.81 126 - 136 8 - 14 8 - 10 14 - 16 19 - 25 75 - 81 9 - 12

Subcooling

Air

3.75 114 - 124 17 - 28 14 - 18 10 - 12 20 - 26 80 - 86 9 - 13

4.7

114 - 124 17 - 28 13 - 18

2 - 4

8 - 9 20 - 26 81 - 88 10 - 13 2 - 4

7 - 9 14 - 16 19 - 25 92 - 100 9 - 12 2.81 128 - 138 8 - 13

3.75 120 - 130 14 - 23 11 - 15 10 - 12 19 - 25 95 - 103 9 - 12

4.7

120 - 130 14 - 23 11 - 14 8 - 9 19 - 25 97 - 105 9 - 12

2.81 131 - 141 7 - 11 8 - 10 13 - 15 18 - 24 108 - 116 8 - 10

3.75 126 - 136 11 - 18 9 - 13 10 - 12 18 - 24 110 - 120 9 - 12

4.7

126 - 136 11 - 18 9 - 12 8 - 9 18 - 24 113 - 122 9 - 12

2.81 133 - 145 7 - 11 8 - 10 13 - 15 18 - 24 122 - 132 8 - 10

3.75 131 - 141 8 - 14 8 - 10 9 - 11 18 - 24 124 - 134 9 - 12

4.7

131 - 141 8 - 14 7 - 10 7 - 8 18 - 24 126 - 137 9 - 12

2.81 135 - 147 6 - 10 9 - 12 13 - 15 17 - 23 134 - 146 8 - 10

3.75 135 - 147 6 - 10

4.7

135 - 147 6 - 10

7 - 9

9 - 11 17 - 23 137 - 149 9 - 12

7 - 8 17 - 23 140 - 152 9 - 12

2.81 138 - 150 6 - 10 9 - 13 12 - 14 16 - 22 146 - 158 9 - 12

3.75 138 - 150 5 - 9

2 - 4

8 - 10 9 - 11 16 - 22 149 - 161 9 - 13

7 - 10

2 - 4

4.7

138 - 150 5 - 9 7 - 8 16 - 22 152 - 164 10 - 13 2 - 4

2.81 140 - 152 5 - 9 11 - 15 12 - 14 16 - 22 156 - 168 9 - 13

3.75 141 - 153 5 - 8

4.7

141 - 153 5 - 8

2 - 4

9 - 12 8 - 10 16 - 22 159 - 173 10 - 14 2 - 4

8 - 11 6 - 7 16 - 22 163 - 176 11 - 14 2 - 4

2.81 143 - 155 5 - 9 12 - 16 11 - 13 15 - 21 164 - 178 10 - 14 2 - 4

3.75 144 - 156 5 - 8 10 - 14 8 - 10 15 - 21 170 - 184 12 - 16 2 - 4

4.7

144 - 156 5 - 8 10 - 13 6 - 7 15 - 21 173 - 188 12 - 17 2 - 4

2.81 145 - 157 5 - 9 14 - 18 11 - 13 14 - 20

3.75 145 - 157 5 - 9 13 - 17 8 - 8 15 - 21

4.7

145 - 157 5 - 9 12 - 17 6 - 6 15 - 21

2 - 4

Water

Temp

Rise F

Temp

Drop F

1 - 2 15 - 19

4 - 4 13 - 15

3 - 3 13 - 16

1 - 2 17 - 21

5 - 6 16 - 20

3 - 4 16 - 20

2 - 2 19 - 23

5 - 7 20 - 24

4 - 5 20 - 24

3 - 3 21 - 25

5 - 7 22 - 26

4 - 5 22 - 27

4 - 4 22 - 26

6 - 8 23 - 29

5 - 6 24 - 29

5 - 6 23 - 28

6 - 8 23 - 29

5 - 6 24 - 29

5 - 7 23 - 28

7 - 9 23 - 29

6 - 7 24 - 29

5 - 7 23 - 28

7 - 9 22 - 26

6 - 7 22 - 27

* Based on 15% Methanol antifreeze solution.

Table 11: 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]

8 - 20

[4.4 - 11.1]

3 - 18

[1.7 - 10] c l i m a t e m a s t e r.c o m 61

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Preventive Maintenance

Brazed Plate Heat Exchanger

Maintenance - TRL should not be applied to ground water applications.

Brazed Plate Heat Exchanger

Maintenance (All other water loop applications) Generally brazed plate heat exchanger (BPHX) 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 BPHX water strainer 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 and should never be paired with TRL systems unless an indeterminate heat exchanger is used in the water loop system. The unit water strainer should be periodically cleaned. Water loop systems with poor water quality/dirt/debris in the system will require the strainer be cleaned out more frequently.

Should periodic coil cleaning be necessary, use standard coil cleaning procedures, which are compatible with both the heat exchanger material and copper water lines. Generally, the more water flowing through the unit, the less chance for scaling. However, flow rates over 3 gpm per ton (3.9 l/m per kW) can produce water (or debris) velocities that can erode the heat exchanger wall and ultimately produce leaks.

Filters Filters must be clean to obtain maximum performance. Filters should be inspected every month under normal operating conditions and be replaced when necessary. Units should never be operated without a filter.

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

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.

62 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Preventive Maintenance, Cont’d.

Air Coil The air coil must be cleaned to obtain maximum performance. Check once a year under normal operating conditions and, if dirty, brush or vacuum clean. Care must be taken not to damage the aluminum fins while cleaning.

CAUTION: Fin edges are sharp.

Cabinet Do not allow water to stay in contact with the cabinet for long periods of time to prevent corrosion of the cabinet sheet metal. 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.c o m 63

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Functional Troubleshooting

Fault

Main power problems

HP Fault

Code 2

High Pressure

LP/LOC Fault

Code 3

Low Pressure /

Loss of Charge

LT1 Fault

Code 4

Water coil low temperature limit

Htg Clg Possible Cause

Green Status LED Off

Reduced or no water flow in cooling

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

CXM2.

Check primary/secondary voltage on transformer.

Check pump operation or valve operation/ setting.

Check water flow adjust to proper flow rate.

Check flow switch is operating correctly.

Water Temperature out of range in cooling

Reduced or no air flow in heating

Air temperature out of range in heating

Overcharged with refrigerant

Bad HP Switch

Insufficient charge

Bad LP switch

Bring water temp within design parameters.

Check for dirty air filter and clean or replace.

Check flow switch is operating correctly.

Check fan motor operation and airflow restrictions.

Dirty Air Coil- construction dust etc.

Too high of external static. Check static vs blower table.

Confirm wire harness connection to correct taps.

Bring return air temp within design parameters.

Check superheat/subcooling vs typical operating condition table.

Check switch continuity and operation.

Replace. Confirm wire harness connection to correct taps.

Check for refrigerant leaks.

Check switch continuity and operation.

Replace.

Check if JW3 is cut on CXM2 to avoid system looking for the incorrect LP switch.

Compressor pump down at start-up

Reduced or no water flow in heating

Check charge and start-up water flow.

Check pump operation or water valve operation/setting.

Plugged strainer or filter. Clean or replace.

Check water flow adjust to proper flow rate.

Check flow switch is operating correctly.

Inadequate antifreeze level Check antifreeze density with hydrometer.

Improper temperature limit setting (25°F vs 10°F [-4°C vs -12°C])

Clip JW3 jumper for antifreeze (10°F [-12°C]) use. Check flow switch is operating correctly.

Water Temperature out of range

Bring water temp within design parameters.

Bad thermistor

Check temp and impedance correlation per chart.

Table continued on next page.

C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Functional Troubleshooting, Cont’d.

Table continued from previous page.

Fault

LT2 Fault

Code 5

Air coil low temperature limit

Condensate

Fault

Code 6

Over/Under

Voltage Code 7

(Auto resetting)

Unit Performance

Sentinel

Code 8

Swapped

Thermistor

Code 9

Low Water Flow

Code 13

Htg Clg Possible Cause

Reduced or no air flow in cooling

Solution

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.

Air Temperature out of range

Improper temperature limit setting (25°F vs 10°F [-4°C vs -12°C])

Normal airside applications will require 25°F

[-4°C] only.

Bad thermistor

Blocked drain

Improper trap

Poor drainage

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.

X Moisture on sensor Check for moisture shorting to air coil.

Plugged air filter

Restricted Return Air Flow

X Under Voltage

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.

Over Voltage

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.

Heating mode LT2>125°F

[52°C]

Check for poor air flow or overcharged unit.

Cooling Mode LT1>125°F

[52°C] OR LT2< 40ºF [4ºC]) Check for poor water flow, or air flow.

X LT1 and LT2 swapped Reverse position of thermistors.

X Reduced or no water flow

Check pump operation or valve operation/ setting.

Check water flow adjust to proper flow rate.

Clogged Y strainer, replace mesh.

Inadequate antifreeze level Check antifreeze density with hydrometer.

Bad flow switch

Confirm applied flow to loops vs min. flow switch setpoint on label.

Table continued on next page.

c l i m a t e m a s t e r.c o m 65

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Functional Troubleshooting, Cont’d.

Table continued from previous page.

Fault

Leaving Water

Temperature Low

Code 14

No Fault Code

Shown

Unit Short Cycles

Only Fan Runs

Only Compressor

Runs

Htg Clg Possible Cause

Reduced or no water flow in heating

Solution

Check pump operation or valve operation/ setting.

Check water flow adjust to proper flow rate.

In adequate antifreeze level Check antifreeze density with hydrometer.

Improper temperature limit setting

(30°F vs 15°F [-1°C vs -9°C)

Clip JW3 jumper for antifreeze (15°F [-9°C]) use.

Water temperature out of range

Bring water temp within design parameters.

Bad thermistor

No compressor operation

Check temp and impedance correlation per chart.

See "Only Fan Operates".

X Compressor overload Check and replace if necessary.

X Control board

X Dirty air filter

X Unit in "test mode"

Unit selection

Compressor overload

Thermostat position

Unit locked out

Compressor Overload

Thermostat wiring

Fan motor relay

Fan motor

Thermostat wiring

Reset power and check operation.

Check and clean air filter.

Reset power or wait 20 minutes for auto exit.

Unit may be oversized for space. Check sizing for actual load of space.

Check and replace if necessary

Ensure thermostat set for heating or cooling operation.

Check for lockout codes. Reset power.

Check compressor overload. Replace if necessary.

Check thermostat wiring at heat pump.

Jumper Y and R for compressor operation in test mode.

Running on low temperature below LT1 and

LWT limits.

Check G wiring at heat pump. Jumper G and

R for fan operation.

Not enough flow though the water loop, flow switch open.

Jumper G and R for fan operation. Check for

Line voltage across BR contacts.

Check fan power enable relay operation (if present).

Check for line voltage at motor. Check capacitor.

Check thermostat wiring at heat pump.

Jumper Y and R for compressor operation in test mode.

Table continued on next page.

C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

Fault

Unit Doesn’t

Operate in

Cooling

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Functional Troubleshooting, Cont’d.

Table continued from previous page.

Htg Clg Possible Cause

X Reversing valve

X Thermostat setup

X Thermostat wiring

Solution

Set for cooling demand and check 24VAC on

RV coil and at CXM2 board.

If RV is stuck, run high pressure up by reducing water flow and while operating engage and disengage RV coil voltage to push valve.

Check for ‘O’ RV setup not ‘B’.

Check O wiring at heat pump. Jumper O and

R for RV coil ‘click’.

Put thermostat in cooling mode. Check 24

VAC on O (check between C and O); check for 24 VAC on W (check between W and C).

There should be voltage on O, but not on W.

If voltage is present on W, thermostat may be bad or wired incorrectly.

c l i m a t e m a s t e r.c o m 67

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Performance Troubleshooting

Performance

Troubleshooting Htg Clg Possible Cause

Insufficient capacity/ Not cooling or heating

Dirty filter

Reduced or no air flow in heating

Reduced or no air flow in cooling

Leaky duct work

Solution

Replace or clean.

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.

X Low refrigerant charge

X Restricted metering device

Check superheat and subcooling per chart.

Check superheat and subcooling per chart. Replace.

X Defective reversing valve Perform RV touch test.

X Thermostat improperly

X Unit undersized

Check location and for air drafts behind stat.

Recheck loads & sizing. Check sensible clg. load and heat pump capacity.

X Scaling in water heat

X Inlet water too hot or too

Perform scaling check and clean if necessary.

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

Table continued on next page.

C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Performance Troubleshooting, Cont’d.

Table continued from previous page.

Performance

Troubleshooting Htg Clg Possible Cause

High Head

Pressure

Low Suction

Pressure

Reduced or no air flow in heating

Reduced or no water flow in cooling

X Inlet water too hot

Air temperature out of range in heating

X X Unit overcharged

X X Non-condensables in

X X Restricted metering

Reduced water flow in heating.

Water temperature out of range.

Reduced air flow in cooling.

X X Insufficient charge

Solution

Check for dirty air filter and clean or replace.

Check fan motor operation and air flow restrictions.

Too high of external static. Check static vs. blower table.

Check pump operation or valve operation/ setting.

Check water flow. Adjust to proper flow rate.

Check flow switch is operating correctly.

Check load, loop sizing, loop backfill, ground moisture. Check flow switch is operating correctly.

Bring return air temperature within design parameters.

Perform scaling check and clean if necessary.

Check superheat and subcooling. Reweigh in charge.

Vacuum system and re-weigh 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.

Check flow switch is operating correctly.

Bring water temperature within design parameters. Check flow switch is operating correctly.

Check for dirty air filter and clean or replace.

Check fan motor operation and air flow restrictions.

Too high of external static. Check static vs. blower table.

Too much cold vent air? Bring entering air temperature within design parameters.

Check for refrigerant leaks.

Table continued on next page.

c l i m a t e m a s t e r.c o m 69

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Performance Troubleshooting, Cont’d.

Table continued from previous page.

Performance

Troubleshooting Htg Clg Possible Cause

Low Discharge

Air Temperature in Heating

Too high of air flow

Poor performance

X Too high of air flow

High humidity

X Unit oversized

Solution

Check fan motor speed selection and air flow chart.

See ‘Insufficient Capacity’.

Check fan motor speed selection and airflow chart.

Recheck loads & sizing. Check sensible clg load and heat pump capacity.

70 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

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. Submit a copy of this completed form to your ClimateMaster representative once start-up has been completed.

Keep a copy of the form your records and future use.

Unit Location in Building:

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

CT ECM

Description

Speed Tap

Temperatures: F or C

Pressures: PSIG or kPa

Value

Antifreeze: %

Type:

Cooling Mode Heating Mode

Entering Fluid Temperature

Leaving Fluid Temperature

Temperature Differential

Return-Air Temperature

Supply-Air Temperature

Temperature Differential

Brazed Plate Heat Exchanger

(Water Pressure IN)

Brazed Plate 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. c l i m a t e m a s t e r.c o m 71

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Functional Troubleshooting Form

72 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Functional Troubleshooting Form, Cont’d.

Heat of Extraction (Absorption) or

Heat of Rejection =

x temp. diff. (°F)

x fluid factor†

= (Btu/hr)

Superheat =

flow rate (gpm)

suction temp.

– suction saturation

temp.

= (°F)

Supercool =

discharge saturation

temp.

– liquid line temp.

= (°F)

† Use 500 for water, 485 for antifreeze.

Location

EWT Sensor

Measurement

Type

Temperature

Pressure

Temperature

LWT Sensor

Air Coil - EAT

Air Coil - LAT

LT1 Sensor

LT2 Sensor

Flash Gas Line

Pressure

Temperature

Unit Power

Voltage

Amps

Compressor Amps

Heating Liquid Line Temperature

Compressor

Discharge

Temperature

Compressor

Suction

Temperature

Pressure

Compressor

Saturation

Temperature

Cooling Liquid Line Temperature

Value

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Warranty (U.S. & Canada)

74 C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Notes:

c l i m a t e m a s t e r.c o m 75

CLIMATEMASTER WATER-SOURCE HEAT PUMPS

Tranquility ® (TRL) Series

R e v. : N o v e m b e r 1 1 , 2 0 2 1

Revision History

Date:

11/11/21 Created

Description: Page #:

All

97B0001N15

7300 S.W. 44th Street

Oklahoma City, OK 73179

Phone: 405-745-6000

Fax: 405-745-6058 climatemaster.com

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.

C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s

Tranquility

®

Low-Profile

(TRL) Series

INSTALLATION, OPERATION

& MAINTENANCE

This page intentionally left blank.

Table of Contents

Model Nomenclature – General Overview

General Information

General Information, Cont’d.

General Information, Cont’d.

Unit Physical Data

TRL – Horizontal Dimensional Drawing

TRL – Horizontal Service Access

Horizontal Installation

Horizontal Installation Cont’d.

Horizontal Installation, Cont’d.

Condensate Installation

Duct Work Installation

Duct Work Installation, Cont’d.

Duct Work Installation, Cont’d.

Unit Access

Unit Access, Cont’d.

Unit Access, Cont’d.

Piping Installation

Piping Installation, Cont’d.

Internal Water Pump Performance

60 Hz Performance Curves

Water-Loop Heat Pump Applications

Water-Loop Heat Pump Applications, Cont’d.

Ground-Loop Heat Pump Applications

Ground-Loop Heat Pump Applications, Cont’d.

Electrical – Line Voltage

Electrical Data

Electrical – Power Wiring

Electrical – Power Wiring, Cont’d.

Electrical – Power & Low Voltage Wiring

Electrical – Power & Low Voltage Wiring, Cont’d.

Electrical – Low Voltage Wiring

Electrical – Thermostat Wiring

Blower Performance Data – TRL

TRL Series Wiring Diagram Matrix

CXM2 Controls

CXM2 Controls, Cont’d.

CXM2 Controls, Cont’d.

CXM2 Controls, Cont’d.

CXM2 Controls, Cont’d.

Safety Features – CXM2 Controls

Safety Features – CXM2 Controls, Cont’d.

Safety Features – CXM2 Controls, Cont’d.

Unit Starting and Operating Conditions

Unit Starting and Operating Conditions

Water Quality Standards

Water Quality Standards, Cont’d.

Water Quality Standards, Cont’d.

Measuring Earth Ground Resistance

Water Quality Standards, Cont’d.

Measuring Electrolysis Voltage and Current

Pipe System Cleaning and Flushing

Piping System Cleaning and Flushing, Cont’d.

Unit and System Checkout

Unit and System Checkout, Cont’d.

Unit Start-Up Procedure

Unit Start-Up Procedure, Cont’d.

Unit Start-Up Procedure, Cont’d.

Unit Operating Conditions

Unit Operating Conditions, Cont’d.

Unit Operating Conditions, Cont’d.

Preventive Maintenance

Preventive Maintenance, Cont’d.

Functional Troubleshooting

Functional Troubleshooting, Cont’d.

Functional Troubleshooting, Cont’d.

Functional Troubleshooting, Cont’d.

Performance Troubleshooting

Performance Troubleshooting, Cont’d.

Performance Troubleshooting, Cont’d.

Start-Up Log Sheet

Functional Troubleshooting Form