Greensource SM Split Heat Pump – CS Installation Manual (PDF 1.8 MB)

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Greensource SM Split Heat Pump – CS Installation Manual (PDF 1.8 MB) | Manualzz

SM CS Series Heat pump

SM024 | SM036 | SM048 | SMO60 | SM070

Installation, Operation and Maintenance Manual

2 |

SM CS Series Heat Pump

CONTENTS

Model Nomenclature.......................................................... 3

Key to Symbols.................................................................. 3

Safety Warnings................................................................ 3

Standard SM CS package ................................................... 4

GENERAL DESCRIPTION .................................................... 4

MOVING AND STORAGE ..................................................... 4

INITIAL INSPECTION .......................................................... 4

LOCATION......................................................................... 4

Condensing Section ..................................................... 4

Air Handler ................................................................. 5

PIPING.............................................................................. 5

ELECTRICAL...................................................................... 6

Safety Devices and the UPM Controller ........................... 6

OPTIONS......................................................................... 10

Heat Recovery Package (HRP) ..................................... 10

DPS Water Flow Proving ............................................. 10

Pump Relay............................................................... 10

Comfort Alert Module ................................................. 10

HEAT RECOVERY PACKAGE ............................................. 11

Water Tank Preparation .............................................. 11

HR Water Piping ........................................................ 11

Water Tank Refill........................................................ 12

Initial Start-Up........................................................... 12

SEQUENCE OF OPERATION .............................................. 13

Cooling Mode ............................................................ 13

Heating Mode............................................................ 13

APPLICATION CONSIDERATIONS...................................... 15

Well Water Systems ................................................... 15

Cooling Tower/Boiler Systems ..................................... 16

Geothermal Systems .................................................. 18

SYSTEM CHECKOUT ........................................................ 19

UNIT START-UP................................................................19

MAINTENANCE ................................................................20

UNIT CHECK-OUT SHEET ..................................................21

TROUBLESHOOTING ........................................................22

Unit Lockouts ............................................................25

OPERATING TEMPERATURES AND PRESSURES .................26

WATER SIDE PRESSURE DROP TABLE ...............................31

WIRING DIAGRAMS..........................................................32

DIMENSIONAL DRAWINGS ...............................................33

SPARE PARTS LIST...........................................................34

CS Parts List - Cabinet ................................................35

CS Parts List -Refrigeration/Electrical ...........................36

Notes ..............................................................................39

Figure 1: CS/AH Pairings

UNIT MODEL

Paired Air Handler

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6

SM024-1CSC

SM024-1AVX SM024-1AHX DX025-1VTX DX025-1CCX DX025-1UCX DX035-1VTX

SM036-1CSC

SM036-1AVX SM036-1AHX DX035-1VTX DX035-1CCX DX035-1UCX DX049-1VTX

SM048-1CSC

SM048-1AVX SM048-1AHX DX049-1VTX DX049-1CCX DX049-1UCX

SM060-1CSC

SM060-1AVX SM060-1AHX DX061-1VTX DX061-1CCX DX061-1UCX DX071-1VTX

SM070-1CSC

SM070-1AVX SM070-1AHX DX071-1VTX DX071-1CCX DX071-1UCX

LEGEND:

AVX

AHX

CCX

UCX

VTX

BOSCH box style Vertical Air Handler

BOSCH box style Horizontal Air Handler

Cased coil

Uncased coil

BOSCH unitary style air handler

8 733 920 846 (2015/01) Subject to change without prior notice SM CS Series Heat Pump

SM CS Series Heat

MODEL NOMENCLATURE

Model Nomenclature | 3

SM 024 1 CS C F

SERIES

SM

SIZE

024

036

048

060

070

VOLTAGE DESIGNATIONS

1

- 208/1/60 & 230/1/60

WATER CONNECTIONS

F - Front

COAX OPTIONS

C - Copper

N - Cupro-Nickel

CABINET CONFIGURATION

CS - Condensing Section

KEY TO SYMBOLS

Warnings

Warnings in this document are identified by a warning triangle printed against a grey background. Keywords at the start of the warning indicate the type and seriousness of the ensuing risk if measures to prevent the risk are not taken.

The following keywords are defined and can be used in this document:

NOTE indicates a situation that could result in

damage to property or equipment.

CAUTION indicates a situation that could

result in minor to medium injury.

WARNING indicates a situation that could

result in sever injury or death.

DANGER indicates a situation that will result in

severe injury or death.

Important Information

This symbol indicates important information where there is no risk to property or people.

Revision Level A

SAFETY WARNINGS

Installation and servicing of this equipment can be hazardous due to system pressure and electrical components. Only trained and qualified personnel should install, repair, or service the equipment.

Before performing service or maintenance operations on the system, turn off main power to the unit. Electrical shock could

cause personal injury or death.

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.

To avoid equipment damage, DO NOT use these units as a source of heating or cooling during the construction process. Doing so may affect the unit’s warranty. The mechanical components and filters will quickly become clogged with construction dirt and debris, which may cause system damage.

Revised 01-15 8 733 920 846 (2015/01)

4 | Standard SM CS package

STANDARD SM CS PACKAGE

Figure # 2

[1] SM Series Water-to-Air Heat Pump: Condensing

Section

[2] Installation and Operation Manual

GENERAL DESCRIPTION

1

2

SM Series Water-to-Air Heat Pumps provide the best combination of performance and efficiency available. All units are performance certified to

American Heating and Refrigeration Institute

(AHRI) ISO Standard 13256-1. All SM Water-to-Air

Heat Pumps conform to UL1995 standard and are certified to CAN/CSA C22.1 No 236 by Intertek-

ETL. The Water-to-Air Heat Pumps are designed to operate with entering fluid temperature between

30°F to 90°F in the heating mode and between

40°F to 120°F in the cooling mode.

50°F Minimum Entering Water Temperature

(EWT) is recommended for well water applications with sufficient water flow to prevent freezing. Antifreeze solution is required for all closed loop applications. Cooling Tower/Boiler and Geothermal applications should have sufficient antifreeze solution to protect against extreme conditions and equipment failure.

Frozen water coils are not covered under warranty. Other equivalent methods of temperature control are acceptable.

Several factory installed options are available:

Heat Recovery Package, Smart Start Assist, DPS

Water Flow Proving Switch, Auxiliary Pump Relay, and Comfort Alert Module.

Safety devices are built into each unit to provide the maximum system protection possible when properly installed and maintained.

SM CS Series Heat Pump

MOVING AND STORAGE

If the equipment is not needed for immediate installation upon its arrival at the job site, it should be left in its shipping carton and stored in a clean, dry area. Units must only be stored or moved in the normal upright position as indicated by the “UP” arrows on each carton at all times.

For storage If unit stacking is required, stack units as follows:

Do not stack units larger than 6 tons!

INITIAL INSPECTION

Be certain to inspect all cartons or crates on each unit as received at the job site before signing the freight bill. Verify that all items have been received and that there are no visible damages; note any shortages or damages on all copies of the freight bill. In the event of damage or shortage, remember that the purchaser is responsible for filing the necessary claims with the carrier. Concealed damages not discovered until after removing the units from the packaging must be reported to the carrier within 24 hours of receipt.

LOCATION

To maximize system performance, efficiency and reliability, and to minimize installation costs, it is always best to keep the refrigerant lines as short as possible. Every effort should be made to locate the air handler and the condensing section as close as possible to each other.

Condensing Section

Locate the condensing section in an area that provides sufficient room to make water and electrical connections, and allows easy removal of the access panels, for service personnel to perform maintenance or repair.

The condensing section is designed for indoor use primarily; however, if the condensing section must be installed in an outdoors location where ambient temperatures can fall below freezing, some form of freeze protection should be employed such as a freeze-stat and/or a pump timer/starter to prevent possible condenser freeze-up and to optimize overall system performance.

8 733 920 846 (2015/01) Subject to change without prior notice SM CS Series Heat Pump

SM CS Series Heat

Air Handler

Locate the air handler unit in an indoor area that allows easy removal of the filter and access panels, and has enough room for service personnel to perform maintenance or repair. Provide sufficient room to make electrical and duct connections. 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. On horizontal units, allow adequate room below the unit for a condensate drain trap.

The air handler units are not approved for outdoor installation; therefore, they must be installed inside the structure being conditioned.

Do not locate in areas that are subject to freezing.

Reference the Factory Manual for your AH or the Air Handler section of this manual for detailed installation and operation.

Vertical units should be mounted level on a vibration absorbing pad slightly larger than the base to minimize vibration transmission to the building structure. It is not necessary to anchor the

unit to the floor. (Figure #3).

Piping | 5

In conditions anticipating moderate scale formation or in brackish water a cupro-nickel heat exchanger is recommended.

Both the supply and discharge water lines will sweat if subjected to low water temperature.

These lines should be insulated to prevent damage from condensation. All manual flow valves used in the system must be ball valves. Globe and gate valves must not be used due to high pressure drop and poor throttling characteristics.

Never exceed the recommended water flow rates as serious damage or erosion of the water-to-refrigerant heat exchanger could occur.

Always check carefully for water leaks and repair appropriately. Units are equipped with female pipe thread fittings. Consult Unit Dimensional

Drawings. (Pg#91 through Pg#95)

Teflon tape sealer should be used when connecting water piping connections to the units to insure against leaks and possible heat exchanger fouling.

Do not overtighten the connections.

VIBRATION

PAD FULL

Figure # 3

PIPING

Supply and return piping must be as large as the unit connections on the heat pump (larger on long runs).

Never use flexible hoses of a smaller inside diameter than that of the fluid connections on the unit.

SM units are supplied with either a copper or optional cupro-nickel condenser. Copper is adequate for ground water that is not high in mineral content.

Proper testing is recommended to assure the well water quality is suitable for use with water source equipment. When in doubt, use cupronickel.

Flexible hoses should be used between the unit and the rigid system to avoid possible vibration.

Ball valves should be installed in the supply and return lines for unit isolation and unit water flow balancing.

Revised 01-15 8 733 920 846 (2015/01)

6 | Electrical

SM CS Series Heat Pump

ELECTRICAL

Refer to electrical component box layout.

(Figure #4)

Field wiring must comply with local and national electric codes.

Safety Devices and the UPM Controller

13

12 11

1

Power to the unit must be within the operating voltage range indicated on the unit nameplate or on the performance data sheet.

Operation of unit on improper line voltage or with excessive phase imbalance will be hazardous to the unit, constitutes abuse and may void the warranty.

Properly sized fuses or HACR circuit breakers must be installed for branch circuit protection. See unit nameplate for maximum fuse or breaker size.

The unit is provided with a concentric knock-out for attaching common trade sizes of conduit, route power supply wiring through this opening. Always connect the ground lead to the grounding lug provided in the control box and power leads to the line side of compressor contactor as indicated on

the wiring diagram (Figures on Pg#30).

6

1

2

Figure # 4

[1] Comfort Alert Module (Option)

[2] Compressor contactor

[3] Capacitor

[4] Auxiliary Relay (DP/DT)

[5] Terminal block (Option)

[6] Unit Protection Module (UPM)

3

4

5

2

3

4

5

17

6

7

15

14

8

16

9 10

Figure # 5

[1] Board Power Indicator

[2] UPM Status LED Indicator

[3] Water Coil Freeze Protection Temperature

Selection [R30]

[4] UPM Board Settings

[5] Water Coil Freeze Connection

[6] 24VAC Power Input

[7] Compressor Contact Output

[8] High Pressure Switch Connection

[9] Call for Compressor Y1

[10] Low Pressure Switch Connection

[11] 24VAC Power Common

[12] Dry Contact

[13] UPM Ground Standoff

If the unit is being connected to a thermostat with a malfunction light, this connection is made at the unit malfunction output or relay. Refer to

Figure #5.

If the thermostat is provided with a malfunction light powered off of the common (C) side of the transformer, a jumper between “R” and “COM” terminal of “ALR” contacts must be made.

8 733 920 846 (2015/01) Subject to change without prior notice SM CS Series Heat Pump

SM CS Series Heat

Electrical | 7

If the thermostat is provided with a malfunction light powered off of the hot (R) side of the transformer, then the thermostat malfunction light connection should be connected directly to the (ALR) contact on the unit’s UPM board.

Each unit is factory provided with a Unit Protection

Module (UPM) that controls the compressor operation and monitors the safety controls that protect the unit.

Safety controls include the following:

• High pressure switch located in the refrigerant discharge line and wired across the HPC terminals on the UPM.

• Low pressure switch located in the unit refrigerant suction line and wired across terminals LPC1 and LPC2 on the UPM.

UPM Board Dry Contacts are Normally Open

(NO)

• Water side freeze protection sensor, mounted close to condensing water coil, monitors refrigerant temperature between condensing water coil and thermal expansion valve. If temperature drops below or remains at freeze limit trip for 30 seconds, the controller will shut down the compressor and enter into a soft lockout condition. The default freeze limit trip is 30°F, however this can be changed to

15°F by cutting the R30 or Freeze1 resistor located on top of DIP switch SW1 (Refer to

Figure #5, item [3] for resistor location), Refer

to Figure #6 for sensor location.

Figure # 6

If unit is employing a fresh water system (no anti-freeze protection), it is extremely important to have the Freeze1 R30 resistor set to 30°F in order to shut down the unit at the appropriate leaving water temperature and protect your heat pump from freezing if a freeze sensor is included.

UPM Board Factory Default Settings

TEMP

LOCKOUT

RESET

ALARM

TEST

30°F

2

Y

PULSE

NO

UPM DIP SWITCH DEFAULT POSITION

lockout reset alarm test

4

R

Cont yes

2

Y pulse no

The UPM Board includes the following features:

• ANTI-SHORT CYCLE TIMER:

5 minute delay on break timer to prevent compressor short cycling.

• RANDOM START:

Each controller has an unique random start delay ranging from 270 to 300 seconds on initial power up to reduce the chance of multiple unit simultaneously starting at the same time after power up or after a power interruption, thus avoiding creating large electrical spike.

• LOW PRESSURE BYPASS TIMER:

If the compressor is running and the low pressure switch opens, the controller will keep the compressor ON for 120 seconds. After 2 minutes if the low pressure switch remains open, the controllers will shut down the compressor and enter a soft lockout. The compressor will not be energized until the low pressure switch closes and the anti-short cycle time delay expires. If the low pressure switch opens 2-4 times in 1 hour, the unit will enter a hard lockout. In order to exit hard lockout power to the unit would need to be reset.

• BROWNOUT/SURGE/POWER INTERRUPTION

PROTECTION:

The brownout protection in the

UPM board will shut does the compressor if the incoming power falls below 18 VAC. The compressor will remain OFF until the voltage is above 18 VAC and ANTI-SHORT CYCLE TIMER (300 seconds) times out. The unit will not go into a hard lockout.

Revised 01-15 8 733 920 846 (2015/01)

8 | Electrical

SM CS Series Heat Pump

• MALFUNCTION OUTPUT:

Alarm output is

Normally Open (NO) dry contact.

If pulse is selected the alarm output will be pulsed. The fault output will depend on the dip switch setting for "ALARM". If it is set to "CONST", a constant signal will be produced to indicate a fault has occurred and the unit requires inspection to determine the type of fault. If it is set to "PULSE", a pulse signal is produced and a fault code is detected by a remote device indicating the fault. See L.E.D Fault Indication below for blink code explanation. The remote device must have a malfunction detection capability when the UPM board is set to

"PULSE".

If 24 VAC output is needed, R must be wired to

ALR-COM terminal; 24 VAC will be available o the ALR-OUT terminal when the unit is in the alarm condition.

• DISPLAY OUTPUT:

The Display output is a pulse output connected to the Unit Diagnostic Display

(UDD) and it pulses 24VAC when the unit is in an lockout alarm condition.

• TEST DIP SWITCH:

A test dip switch is provided to reduce all time delays settings to 10 seconds during troubleshooting or verification of unit operation.

Operation of unit in test mode can lead to accelerated wear and premature failure of components. The "TEST" switch must be set back to "NO" after troubleshooting/ servicing.

• FREEZE SENSOR:

The default setting for the freeze limit trip is 30°F (sensor number 1); however this can be changed to 15°F by cutting the R30 resistor located on top of the DIP switch SW1.

The default setting for the freeze limit trip is 30°F

(sensor number 1); however this can be changed to 15°F by cutting the R24 resistor located on top of the DIP switch SW1. Since freeze sensor 2 is dedicated to monitor the evaporator coil it is recommended to leave the factory default setting on the board. The UPM controller will constantly monitor the refrigerant temperature with the sensor mounted close to the condensing water coil between the thermal expansion valve and water coil. If temperature drops below or remains at the freeze limit trip for 30 seconds, the controller will shut the compressor down and enter into a soft lockout condition. Both the status LED and the Alarm contact will be active. The LED will flash (three (3) times) the code associated with this alarm condition. If this alarm occurs 2 times (or 4 if Dip switch is set to 4) within an hour the UPM controller will enter into a hard lockout condition. It will constantly monitor the refrigerant temperature with the sensor mounted close to the evaporator between the thermal expansion valve and evaporator coil as shown in Figure

#5. If temperature drops below or remains at the freeze limit trip for 30 seconds, the controller will shut the compressor down and enter into a soft lockout condition. Both the status LED and the Alarm contact will be active. The LED will flash (six (6) times) the code associated with this alarm condition. If this alarm occurs 2 times (or 4 if Dip switch is set to 4) within an hour the controller will enter into a hard lockout condition.

Freeze sensor will not guard against the loss of water. Flow switch is recommended to prevent unit from running if water flow is lost or reduced.

• INTELLIGENT RESET:

If a fault condition is initiated, the 5 minute delay on break time period is initiated and the unit will restart after these delays expire. During this period the fault LED will indicate the cause of the fault. If the fault condition still exists or occurs 2 or 4 times (depending on 2 or 4 setting for Lockout dip switch) before 60 minutes, the unit will go into a hard lockout and requires a manual lockout reset. A single condensate overflow fault will cause the unit to go into a hard lockout immediately, and will require a manual lockout reset.

• LOCKOUT RESET: A hard lockout can be reset by turning the unit thermostat off and then back on when the “RESET” dip switch is set to

“Y” or by shutting off unit power at the circuit breaker when the “RESET” dip switch is set to

“R”.

The blower motor will remain active during a lockout condition.

8 733 920 846 (2015/01) Subject to change without prior notice SM CS Series Heat Pump

SM CS Series Heat

OPTIONS

Number of factory installed options are available on SM Series of Heat Pumps. The following details the purpose, function and components of each option.

Heat Recovery Package (HRP)

The heat recovery package is a factory installed option on SM series of heat pumps. The HRP can be used to heat potable water during unit operation using waste heat from the compressor discharge gas. In some cases the HRP can provide most or all of the hot water requirements for a typical home.

The HRP consists of three major components:

• double wall, vented refrigerant to water heat exchanger

• circulating pump

• control circuit

The heat exchanger is rated for use with potable water and is acceptable for use as a domestic water heating device in most building codes.

The pump circulates water between the domestic hot water tank and HRP heat exchanger in the Heat

Pump. The control circuit ensures that the HRP only operates when there is available heat from the compressor and when the water is within a safe temperature range of below 140 deg F.

When the heat pump compressor operates, the

HRP will monitor the temperature of the discharge gas from the compressor. Once discharge gas is hot enough to provide useful heat to the domestic water tank, the circulating pump will be enabled, drawing water from the tank, through the HRP heat exchanger and then depositing the heated water back into the tank. If the water temperature reaches 140 deg F, the circulating pump is disabled to prevent over heating of the domestic water. The HRP is provided with an on/off switch in case the end user desires that the HRP be inactivated (typically during the winter months when space heating is most important).

If heat recovery unit is installed in an area where freezing may occur, the unit must be drained during winter months to prevent heat exchanger damage. Heat exchanger ruptures that occur due to freezing will void the heat recovery package warranty along with the heat pump warranty.

Options | 9

DPS Water Flow Proving

The DPS water flow proving switch is a factory installed option available for the SM series. The

DPS prevents compressor operation if there is inadequate water flow through the water to refrigerant heat exchanger in the heat pump.

The DPS operates by monitoring the water side pressure drop across the water to refrigerant heat exchanger. When the pressure drop between the water in and water out lines reaches a pre-set value, compressor operation is enabled.

Pump Relay

The factory installed pump relay can be used to energize a supply pump or solenoid valve when there is a call for compressor operation. This relay can be used to switch either high or low voltage power.

Comfort Alert Module

The Comfort Alert diagnostics module (CADM) is a breakthrough innovation for troubleshooting heat

pump system failures. (Figure #7)

Figure # 7

By monitoring and analyzing data from the compressor and the thermostat demand, the module can accurately detect the cause of electrical and system related failures without any sensors. A flashing LED indicator communicates the ALERT code and guides the service technician more quickly and accurately to the root cause of a problem.

This module does not provide safety protection!

The Comfort Alert module is a monitoring device and cannot shut down the compressor directly.

When an abnormal system condition occurs, the

Comfort Alert module displays the appropriate

ALERT and/or TRIP LED.

The yellow ALERT LED will flash a number of times consecutively, pause and then repeat the process.

Revised 01-15 8 733 920 846 (2015/01)

10 | Heat Recovery Package

To identify a Flash Code number, count the number of consecutive flashes.

Every time the module powers up, the last ALERT

Flash Code that occurred prior to shut down is displayed for one minute.Heat Recovery Package

HEAT RECOVERY PACKAGE

Water Tank Preparation

1. Turn off electrical or fuel supply to the water heater.

2. Attach garden hose to water tank drain connection and run other end of hose out doors or to an open drain.

3. Close cold water inlet valve to water heater tank.

4. Drain tank by opening drain valve on the bottom of the tank, then open pressure relief valve or hot water faucet.

SM CS Series Heat Pump

5. Once drained the tank should be flushed with cold water until the water leaving the drain hose is clear and free of sediment.

6. Close all valves and remove the drain hose.

7. Install HR water piping.

Concentric water fitting (p/n 520-105) is recommended.

HR Water Piping

All hot water piping MUST be a minimum of 3/8t

O.D. copper tube to a maximum distance of fifteen

(15) feet. For distances beyond fifteen feet but not exceeding sixty (60) feet use 1/2” copper tube.

Separately insulate all exposed surface of both connecting water lines with 3/8” wall closed cell insulation. Install isolation valves on supply and

return to the heat recovery. (Figure #8)

Hot

Water

Supply

Cold

Water

Supply

T/P Valve

Water Out

Retrun from HRP

Isolation Valves

Tank Drain Valve

Concentric Fitting

Part #520105

Drain Valve

(Optional)

Water In

Supply to HRP

NOTE: Diagram for illustration purposes only.

Ensure access to Heat Pump is not restricted.

Figure # 8

8 733 920 846 (2015/01) Subject to change without prior notice SM CS Series Heat Pump

SM CS Series Heat

Water Tank Refill

1. Open the cold water supply to the tank.

2. Open a hot water faucet to vent air from the system until water flows from the faucet, then close.

3. Depress the hot water tank pressure relief valve handle to ensure there is no air remaining in the tank.

4. Carefully inspect all plumbing for water leaks.

Correct as required.

5. Purge all air from HR by depressing the schrader valve on the HR Unit. Allow all air to bleed out until water appears at the valve.

All piping from HRP to domestic water tank must be copper or any metal of stronger alloy.

Heat Recovery Package | 11

Initial Start-Up

Make sure all valves in heat recovery water piping system are open. NEVER OPERATE

HR PUMP DRY.

1. Turn on the heat pump. The HR pump should not run if the compressor is not running.

2. Turn HR switch to the “ON” position. The pump will operate if entering water temperature to

HR is below 120° F.

3. The temperature difference between the water entering and leaving the heat recovery should be 5° to 15° F.

4. Allow the unit to operate for 20 to 30 minutes to ensure it is functioning properly. The pump should shut off when the water temperature entering the heat recovery reaches 120°F.

6. Before restoring the power or fuel supply to the water heater, adjust the temperature setting on the tank thermostat(s) to ensure maximum utilization of the heat available from the refrigeration system and conserve the most energy. On tanks with both upper and lower elements and thermostats, the lower element should be turned down to 100° F, while the upper element should be adjusted to 120° F.

Depending upon the specific needs of the customer, you may need to adjust the upper element differently. On tanks with a single thermostat lower the thermostat setting to

120° F or the “LOW” position. After thermostat adjustments are completed, replace access cover and restore electrical or fuel supply to water heater.

Revised 01-15 8 733 920 846 (2015/01)

12 | Sequence of Operation

SM CS Series Heat Pump

SEQUENCE OF OPERATION

Cooling Mode

Energizing the “O” terminal energizes the unit reversing valve thus placing the unit into cooling mode. The fan motor starts when the “G” terminal is energized.

The fan motor will take 30 seconds to ramp up to operating speed and will run at fan only rated air flow as long as there is no call for compressor or heater operation.

When the thermostat calls for first stage cooling

(Y1) the loop pump or solenoid valve if present is energized and the first stage of compressor capacity starts. The fan ramps up to first stage cooling air flow in 30 seconds.

Some options will have a built in delay, and hence, compressor operation is not immediate.

See ‘Options’ sections for more detail.

Heating Mode

The first two stages of heating (Y1 & Y2) operate in the same manner as cooling, but with the reversing valve de-energized. On a call for auxiliary heat

(W1), the fan ramps up to auxiliary heat air flow immediately and the electric heater package is energized along with the compressor.

As the thermostat is satisfied, the heaters will shut off as soon as W1 is de-energized, and the compressors will remain on until the thermostat stages are satisfied.

If the unit compressor locks out for any reason at this time, the electric heaters will continue to function normally.

When the thermostat calls for second stage cooling (Y2) the second stage (or full compressor capacity) is initiated. The fan ramps up to full cooling air flow.

Once the thermostat is satisfied, the compressor shuts down and the fan ramps down to either fan only mode or off over a span of 30 seconds.

Once the thermostat is satisfied, the compressor shuts down and the fan ramps down either fan only mode or off over a span of 30 seconds. If thermostat has two different output points one for

Auxiliary heat and a different one for Emergency heat the two outputs must be terminated on W1 units equipped with one stage of Electric heat.

(Figure #9)

When using a 2-cool, 3-heat thermostat both the

W1 & W2 on the Heat Pump and W2 & EM on the thermostat must be connected together via a jumper. (See Figure#107)

Note that a fault condition initiating a lockout will de-energize the compressor irrespective of which stage is engaged.

8 733 920 846 (2015/01) Subject to change without prior notice SM CS Series Heat Pump

SM CS Series Heat

Sequence of Operation | 13

UPM Sequence of Operation (SOO) Flow Chart

Y1=1

NO

YES

Power/Switchs/Sensor

Status Check

Revised 01-15

V

>

18VAC

NO

YES

HPC = 1

YES

NO

LPC = 1

NO

Start Timer

YES

Blink Code On Status LED

Soft Lockout

Record Alarm

Start Counter (If Applicable)

Lockout Can Be Set To

4 Via Dip Switch

COUNT = 2

YES

NO

YES

TIME > 120

SEC

NO

FRZ > TEMP

LIM

YES

NO

Start Timer

TIME > 30

SEC

YES

NO

CC Output = Off

Blink Code On Status LED

Report Alarm Fault

Hard Lockout

ALR Output = On/Pulse

CON > 0

NO

YES

INITIAL

POWER UP

NO

YES

Start

Anti Short Cycle

NO

Start

Random Start Up

Figure # 9

T

>

ASC OR

RS SEC

YES

CC Output = On

LEGEND:

HPC - HIGH PRESSURE CUTOUT

LPC - LOW PRESSURE CUTOUT

FRZ - FREEZE PROTECTION CONDITION

CON - CONDENSATE OVERFLOW CONDITION

CC - COMPRESSOR COIL

ASC - ANTI SHORT CYCLE

RS - RANDDOM START

8 733 920 846 (2015/01)

14 | Application Considerations

APPLICATION CONSIDERATIONS

Well Water Systems

Copper is adequate for ground water that is not high in mineral content. Should your well driller express concern regarding the quality of the well water available or should any known hazards exist in your area, we recommend proper testing to assure the well water quality is suitable for use with water source equipment. In conditions anticipating moderate scale formation or in brackish water a cupro-nickel heat exchanger is recommended. In well water applications water

SM CS Series Heat Pump

pressure must always be maintained in the heat exchanger. This can be accomplished with either control valve or a bladder type expansion tank.

When using a single water well to supply both domestic water and the heat pump care must be taken to insure that the well can provide sufficient flow for both. In well water applications a slow closing solenoid valve must be used to prevent water hammer. Solenoid valves should be connected across Y1 and C1 on the interface board for all. Make sure that the VA draw of the valve does not exceed the contact rating of the

thermostat. (Figure #10)

13

12

2

1

11

6

5

3

9

7

8

4

Figure # 10 Example System Set-up

[1] Flex Duct Connection

[2] Low Voltage Control Connection

[3] Vibration Pad

[4] Ball Valves

[5] Solenoid Valve Slow Closing

[6] Condensate Drain Connection

[7] Drain Valves

[8] Hose Kits (optional)

[9] Pressure Tank (optional)

[10] P/T Ports (optional)

[11] Line Voltage Connection

[12] Electric Heater Line Voltage Disconnect

[13] Unit Line Voltage Disconnect

10

8 733 920 846 (2015/01) Subject to change without prior notice

Typical Installation shown for illustration purposes only.

SM CS Series Heat Pump

SM CS Series Heat

Cooling Tower/Boiler Systems

The cooling tower and boiler water loop temperature is usually maintained between 50° F to 100 ° F to assure adequate cooling and heating performance.

In the cooling mode, heat is rejected from the unit into the water loop. A cooling tower provides evaporative cooling to the loop water thus maintaining a constant supply temperature to the unit. When utilizing open cooling towers, chemical water treatment is mandatory to ensure the water is free from corrosive elements. A secondary heat exchanger (plate frame) between the unit and the open cooling tower may also be used.

It is imperative that all air be eliminated from the closed loop side of the heat exchanger to insure against fouling. In the heating mode, heat is absorbed from the water loop. A boiler can be utilized to maintain the loop at the desired temperature.

Water piping exposed to extreme low ambient temperatures is subject to freezing.

Teflon tape sealer should be used when connecting to the unit to insure against leaks and possible heat exchanger fouling.

Application Considerations | 15

Ball valves should be installed in the supply and return lines for unit isolation and unit water flow balancing. Pressure/temperature ports are recommended in both supply and return lines for system flow balancing. Water flow can be accurately set by measuring the water-torefrigerant heat exchangers water side pressure drop. See specification sheets for water flow vs. pressure drop information.

No unit should be connected to the supply or return piping until the water system has been completely cleaned and flushed to remove any dirt, piping chips or other foreign material. Supply and return hoses should be connected together during this process to ensure the entire system is properly flushed. After the cleaning and flushing has taken place the unit may be connected to the water loop and should have all valves wide open.

Consult the specification sheets for piping sizes.

Do not overtighten the connections. Flexible hoses should be used between the unit and the rigid system to avoid possible vibration

Revised 01-15 8 733 920 846 (2015/01)

16 | Application Considerations

Geothermal Systems

Closed loop and pond applications require specialized design knowledge. No attempt at these installations should be made unless the dealer has received specialized training. Utilizing the Ground

Loop Pumping Package (GLP), makes the

SM CS Series Heat Pump

installation easy. Anti-freeze solutions are utilized when low evaporating conditions are expected to occur. Refer to the GLP installation manuals for

more specific instructions. (Figure #11)

[1] Line voltage disconnect (unit)

[2] Flex duct Connection

[3] Low voltage control connection

[4] Line voltage connection (unit)

[5] P/T ports

[6] Vibration pad

[7] Condensate drain connection

[8] Ground loop connection kit

[9] Ground loop pumping package

[10] Polyethylene with insulation

[11] Line voltage disconnect (electric heater)

Figure # 11

Diagram shows typical installation and is for illustration purposes only. Ensure access to

Heat Pump is not restricted.

8 733 920 846 (2015/01) Subject to change without prior notice SM CS Series Heat Pump

SM CS Series Heat

SYSTEM CHECKOUT

After completing the installation, and before energizing the unit, the following system checks should be made:

1. Verify that the supply voltage to the heat pump is in accordance with the nameplate ratings.

2. Make sure that all electrical connections are tight and secure.

3. Check the electrical fusing and wiring for the correct size.

Ensure cabinet and Electrical Box are properly grounded.

4. Verify that the low voltage wiring between the thermostat and the unit is correct.

5. Verify that the water piping is complete and correct.

6. Check that the water flow is correct, and adjust if necessary.

7. Check the blower for free rotation, and that it is secured to the shaft.

8. Verify that vibration isolation has been provided.

9. Unit is serviceable. Be certain that all access panels are secured in place.

Considerations:

• Always check incoming line voltage power supply and secondary control voltage for adequacy. Transformer primaries are dual tapped for 208 and 230 volts. Connect the appropriate tap to ensure a minimum of 18 volts secondary control voltage. 24 volts is ideal for best operation.

• Long length thermostat and control wiring leads may create voltage drop. Increase wire gauge or up-size transformers may be required to insure minimum secondary voltage supply.

• FHP recommends the following guidelines for wiring between a thermostat and the unit: 18

GA up to 60 foot, 16 GA up to 100 ft and 14 GA up to 140 ft.

• Do not apply additional controlled devices to the control circuit power supply without consulting the factory. Doing so may void equipment warranties.

• Check with all code authorities on requirements involving condensate disposal/ over flow protection criteria.

UNIT START-UP

System Checkout | 17

1. Set the thermostat to the highest setting.

2. Set the thermostat system switch to “COOL”, and the fan switch to the “AUTO” position. The reversing valve solenoid should energize. The compressor and fan should not run.

3. Reduce the thermostat setting approximately 5 degrees below the room temperature.

4. Verify the heat pump is operating in the cooling mode.

5. Turn the thermostat system switch to the

“OFF” position. The unit should stop running and the reversing valve should de energize.

6. Leave the unit off for approximately (5) minutes to allow for system equalization.

7. Turn the thermostat to the lowest setting.

8. Set the thermostat switch to “HEAT”.

9. Increase the thermostat setting approximately

5 degrees above the room temperature.

10. Verify the heat pump is operating in the heating mode.

11. Set the thermostat to maintain the desired space temperature.

12. Check for vibrations, leaks, etc.

MAINTENANCE

1. Filter changes or cleanings are required at regular intervals. The time period between filter changes will depend upon type of environment the equipment is used in. In a single family home, that is not under construction, changing or cleaning the filter every 60 days is sufficient. In other applications such as motels, where daily vacuuming produces a large amount of lint, filter changes may need to be as frequent as biweekly.

Equipment should never be used during construction due to likelihood of wall board dust accumulation in the air coil of the equipment which permanently affects the performance and may shorten the life of the equipment.

Revised 01-15 8 733 920 846 (2015/01)

18 | Maintenance

SM CS Series Heat Pump

2. An annual “checkup” is recommended by a licensed refrigeration mechanic. Recording the performance measurements of volts, amps, and water temperature differences (both heating and cooling) is recommended. This data should be compared to the information on the unit’s data plate and the data taken at the original startup of the equipment.

3. Lubrication of the blower motor is not required, however may be performed on some motors to extend motor life. Use SAE-20 nondetergent electric motor oil.

4. The condensate drain should be checked annually by cleaning and flushing to insure proper drainage.

Figure 12: Refrigerant Charge, Line Sizing and Capacity Multiplier Chart

SYSTEM

MODEL

SM024

SM036

Factory

R410A

Charge

(Oz)*

80

86

Refrigerant Line O.D. Size (Based on Equivalent Line Length)

25 FT.

35 FT.

45 FT.

50 FT.

75 FT

LIQ. SUC. LIQ. SUC. LIQ. SUC. LIQ. SUC. LIQ. SUC.

3/8 3/4 3/8 3/4 3/8 3/4 3/8 3/4 3/8 7/8

Suct. Line

Riser Max.

3/4

3/8 3/4 3/8 3/4 3/8 3/4 3/8 7/8 3/8 7/8 3/4

SM048

SM060

SM070

93

115

127

3/8 7/8 3/8 7/8 3/8 7/8 3/8 7/8 3/8 7/8

3/8 1-1/8 3/8 1-1/8 3/8 1-1/8 3/8 1-1/8 3/8 1-1/8

3/8 1-1/8 3/8 1-1/8 3/8 1-1/8 3/8 1-1/8 3/8 1-1/8

7/8

7/8

7/8

CAPACITY MULTIPLIER 1.00

.995

Example 1:

Model SM036 with 45ft of equivalent length of 3/8” O.D Liquid

Line. Total system charge= Factory charge + (45ft - 25 ft) x .60 oz/ft Total System Charge =86 oz + (20ft x .60 oz/ft) = 98 oz.

Additional 12 oz of R410A refrigerant required.

Note: Charge value shown for paired SM air handler.

Unit

0.990

0.990

Charge adjustments for SM CS when paired with DX AH (oz)

DX025 DX035 DX049 DX061

0.980

Example 2:

Model SM060 with 10ft of equivalent length of 3/8” O.D

Liquid Line. Total system charge= Factory charge - (25ft -

10ft) x .60 oz/ft Total System Charge = 115 oz - (15ft x .60 oz/ ft) = 106 oz. Removal of 9oz of R410A refrigerant required.

DX071

SM024-1CSC

SM036-1CSC

SM048-1CSC

SM060-1CSC

-

-

-2

-

12

0

-

-

-

25

22

-

-

-

-

10

-

-

-

6

SM070-1CSC

0

Example 3:

Model SM036 CS paired with DX049 AH with 45ft of equivalent length of 3/8” O.D Liquid Line. Total system charge = Factory charge + (DX charge adjustments) + (45ft - 25ft) x .60 oz/ft) = 123 oz. Additional 37 oz of R410A refrigerant required.

Figure 13: Liquid Line Charge Per Linear Foot

R410A oz per foot

Liquid Line Size, O.D.

1/4

.25

5/16

.44

3/8

.60

1/2

1.15

5/8

1.95

8 733 920 846 (2015/01) Subject to change without prior notice SM CS Series Heat Pump

SM CS Series Heat

Unit Check-Out Sheet | 19

UNIT CHECK-OUT SHEET

Customer Data

Customer Name _____________________________________________

Address ______________________________________________________

_______________________________________________________________

Phone _______________________________________________________

Date ___________________________________

Unit Number ___________________________

Unit Nameplate Data

Unit Make _________________________________________

Model Number ____________________________________ Serial Number ____________________________________

Refrigerant Charge (oz) __________________________

Compressor: RLA ____________________ LRA ___________________________

Blower Motor: FLA (or NPA) ___________ HP ____________________________

Maximum Fuse Size (Amps) ____________

Maximum Circuit Ampacity _____________

Operating Conditions

Entering / Leaving Air Temp

Entering Air Measured at:

Leaving Air Measured at:

Entering / Leaving Fluid Temp

Fluid Flow (gpm)

Compressor Volts / Amps

Blower Motor Volts / Amps

Source Fluid Type

Fluid Flow (gpm)*

Fluid Side Pressure Drop*

Suction / Discharge Pressure (psig)*

Suction / Discharge Temp*

Suction Superheat*

Entering TXV / Cap Tube Temp*

Liquid Subcooling*

* Required for Troubleshooting ONLY

Cooling Mode

_______________ / _____________

______________________________

______________________________

_______________ / _____________

______________________________

_______________ / _____________

_______________ / _____________

______________________________

______________________________

______________________________

_______________ / _____________

_______________ / _____________

______________________________

______________________________

______________________________

Heating Mode

_______________ / _____________

______________________________

______________________________

_______________ / _____________

______________________________

_______________ / _____________

_______________ / _____________

______________________________

______________________________

______________________________

_______________ / _____________

_______________ / _____________

______________________________

______________________________

______________________________

Auxiliary Heat

Unit Make __________________________________

Model Number: ______________________________ Serial Number _____________________________

Max Fuse Size (Amps) _______________________

Volts / Amps _______________________________

Entering Air Temperature _____________________

Leaving Air Temperature ______________________

MAIL TO:

[email protected] or scan the QR code and attach picture of this form with the information requested.

Bosch Group

601 NW 65th Court

Fort Lauderdale, FL 33309

Phone: (866) 642-3198

Fax: (800) 776-5529

Revised 01-15 8 733 920 846 (2015/01)

20 | Troubleshooting

SM CS Series Heat Pump

TROUBLESHOOTING

Troubleshooting Information Solution column may reflect a possible fault that may be one of, or a combination of causes and solutions. Check each cause and adopt "process of elimination" and or verification of each before making any conclusion.

Problem

ENTIRE UNIT

DOES NOT RUN

UNIT OFF ON

HIGH PRESSURE

CONTROL

UNIT OFF ON LOW

PRESSURE

CONTROL

UNIT SHORT

CYCLES

Possible Cause

Unit Troubleshooting

Checks and Correction

Power Supply Off Apply power, close disconnect

Blown Fuse

Voltage Supply

Low

Thermostat

Discharge pressure too high

Refrigerant charge

High pressure

Replace fuse or reset circuit breaker. Check for correct fuses

If voltage is below minimum voltage specified on unit data plate, contact local power company.

Set the fan to “ON”, the fan should run. Set thermostat to “COOL” and lowest temperature setting, the unit should run in the cooling mode

(reversing valve energized). Set unit to “HEAT” and the highest temperature setting, the unit should run in the heating mode. If neither the blower or compressor run in all three cases, the thermostat could be miswired or faulty. To ensure miswired or faulty thermostat verify 24 volts is available on the condensing section low voltage terminal strip between “R” and “C”, “Y” and “C”, and “O” and “C”. If the blower does not operate, verify 24 volts between terminals “G” and “C” in the air handler. Replace the thermostat if defective.

In “COOLING” mode: Lack of or inadequate water flow. Entering water temperature is too warm. Scaled or plugged condenser. In “HEATING” mode: Lack of or inadequate air flow. Blower inoperative, clogged filter or restrictions in duct work

The unit is overcharged with refrigerant. Reclaim refrigerant, evacuate and recharge with factor recommended charge.

Check for defective or improperly calibrated high pressure switch.

Suction pressure too low

Refrigerant charge

Low pressure switch

Unit oversized

Thermostat

Wiring and controls

In “COOLING” mode: Lack of or inadequate air flow. Entering air temperature is too cold. Blower inoperative, clogged filter or restrictions in duct work. In “HEATING” mode: Lack of or inadequate water flow. Entering water temperature is too cold. Scaled or plugged condenser.

The unit is low on refrigerant. Check for refrigerant leak, repair, evacuate and recharge with factory recommended charge.

Check for defective or improperly calibrated low pressure switch.

Recalculate heating and or cooling loads.

Thermostat installed near a supply air grill; relocate thermostat.

Readjust heat anticipator.

Check for defective or improperly calibrated low pressure switch.

8 733 920 846 (2015/01) Subject to change without prior notice SM CS Series Heat Pump

SM CS Series Heat

Troubleshooting | 21

Problem

INSUFFICIENT

COOLING OR

HEATING

Possible Cause

Unit undersized

Unit Troubleshooting

Checks and Correction

Recalculate heating and or cooling loads. If excessive, possibly adding insulation and shading will rectify the problem

Check for leaks in duct work or introduction of ambient air through doors or windows

Loss of conditioned air by leakage

Airflow Lack of adequate air flow or improper distribution of air. Replace dirty filter

Low on refrigerant charge causing inefficient operation Refrigerant charge

Compressor

Reversing Valve

Operating pressures

TXV

Moisture, noncondensables

Check for defective compressor. If discharge is too low and suction pressure is too high, compressor is not pumping properly. Replace compressor.

Defective reversing valve creating bypass of refrigerant from discharge of suction side of compressor. Replace reversing valve

Compare unit operation pressures to the pressure/temperature chart for the unit.

Check TXV for possible restriction or defect. Replace if necessary.

The refrigerant system may be contaminated with moisture or noncondensables. Reclaim refrigerant, replace filter dryer, evacuate the refrigerant system, and recharge with factory recommended charge.

Compressor Ohms

Model Start Winding Run Winding

SM024

SM036

SM048

SM060

1.64

1.52

1.86

1.63

1.3

0.88

0.52

0.39

SM070 1.85

0.34

Tolerance +/- 7%. All resistance values must be measured with compressor at room temperature.

UPM Board LED Indications

Indication

Color Blinks

GREEN

RED

RED

RED

RED

RED

RED

4

5

6

Solid

1

2

3

Description

18-30 VAC Power is present

High pressure lockout

Low pressure lockout

Freeze sensor lockout

Condensate overflow

Brownout

Evaporator Freeze condition

Revised 01-15 8 733 920 846 (2015/01)

22 | Troubleshooting

SM CS Series Heat Pump

Status LED

YELLOW "ALERT"

FLASH CODE 3

YELLOW "ALERT"

FLASH CODE 4

YELLOW "ALERT”

FLASH CODE 5

YELLOW "ALERT”

FLASH CODE 6

YELLOW "ALERT”

FLASH CODE 7

Comfort Alert Module -Flash Codes

Status LED

Description Status LED Troubleshooting Information Solution

Short Cycling

Compressor is running only briefly

Locked Rotor

Open Circuit

Open Start Circuit

Current only in run circuit

Open Run Circuit

Current only in start circuit

1. Thermostat demand signal is intermittent

2. Time delay relay or control board defective

3. If high pressure switch present go to Flash Code 2 information

4. If low pressure switch present go to Flash Code 1 information

1. Run capacitor has failed (may not be bad, verify)

2. Low line voltage (contact utility if voltage at disconnect is low)

• Check wiring connections

3. Excessive liquid refrigerant in compressor

4. Compressor bearings are seized

• Measure compressor oil level

1. Outdoor unit power disconnect is open

2. Compressor circuit breaker or fuse(s) is open

3. Compressor contactor has failed open

• Check compressor contactor wiring and connectors

• Check for compressor contactor failure (burned, pitted or open)

• Check wiring and connectors between supply and compressor

• Check for low pilot voltage at compressor contactor coil

4. High pressure switch is open and requires manual reset

5. Open circuit in compressor supply wiring or connections

6. Unusually long compressor protector reset time due to extreme ambient temperature

7. Compressor windings are damaged

• Check compressor motor winding resistance

1. Run capacitor has failed (may not be bad, verify)

2. Open circuit in compressor start wiring or connections

• Check wiring and connectors between supply and the compressor "S'" terminal

3. Compressor start winding is damaged

• Check compressor motor winding resistance

1. Open circuit in compressor run wiring or connections

• Check wiring and connectors between supply and the compressor "R” terminal

2. Compressor run winding is damaged

• Check compressor motor winding resistance

8 733 920 846 (2015/01) Subject to change without prior notice SM CS Series Heat Pump

SM CS Series Heat

Troubleshooting | 23

Status LED

YELLOW "ALERT"

FLASH CODE 8

YELLOW "ALERT"

FLASH CODE 9

Comfort Alert Module -Flash Codes

Status LED

Description Status LED Troubleshooting Information Solution

Welded Contactor

Compressor always runs

Low Voltage

Control circuit <

17VAC

1. Compressor contactor has failed closed

2. Thermostat demand signal not connected to module

1. Control circuit transformer is overloaded

2. Low line voltage (contact utility if voltage at disconnect is low)

• Check wiring connections Flash Code number corresponds to a number of LED flashes, followed by a pause and then repeated. TRIP and ALERT LEDs flashing at same time means control circuit voltage is too low for operation

Problem

NO FLOW

LOW FLOW

HIGH WATER

TEMPERATURE

HRP Troubleshooting

Possible Cause

No Power

On/Off Switch Position

Compressor Contactor

Broken or loose wires

Air Lock

Stuck pump shaft/impeller

Defective pump

Kinked or under sized water piping

Water temp limit closed

LOW HEAT OUTPUT Scaled or fouled heat exchanger

Checks and Corrections

Check power supply

Set switch to “ON” position

Engage heat pump contactor

Repair or tighten wires

Purge air from piping system

Remove pump cartridge and clean

Replace pump

Repair kink and check for proper line size

Stuck limit switch

Sensor not attached securely to line

Clean heat exchanger

Unit Lockouts

Periodic lockouts almost always are caused by air or water flow problems. The lockout (shutdown) of the unit is a normal protective measure in the design of the equipment. If continual lockouts occur call a mechanic immediately and have them check for: water flow problems, water temperature problems, air flow problems or air temperature problems. Use of the pressure and temperature charts for the unit may be required to properly determine the cause.

Revised 01-15 8 733 920 846 (2015/01)

24 | Operating Temperatures and Pressures

SM CS Series Heat Pump

OPERATING TEMPERATURES AND

PRESSURES

Operating Temperatures and Pressures

COOLING HEATING

Model

SM024

Part

Load

SM024

Full

Load

Entering

Water

Temp. F

Wat er

Flow

30°

40°

50°

60°

70°

80°

90°

100°

30°

40°

50°

60°

70°

80°

90°

100°

8

4

8

4

8

8

4

8

4

8

4

8

4

8

4

8

4

8

4

8

4

8

4

8

4

8

4

8

4

4

8

4

Suction

Pressure

PSIG

115-140

129-157

124-151

134-163

128-156

138-168

133-161

143-174

137-167

147-179

141-172

151-185

146-177

125-151

120-146

134-163

129-157

139-169

134-163

144-175

138-168

148-181

143-174

153-186

147-179

158-191

152-185

Discharge

Pressure

PSIG

175-214

218-267

204-250

249-305

233-287

281-341

263-323

317-388

297-366

357-437

335-411

402-492

378-459

180-221

169-207

211-258

198-242

241-295

227-278

272-333

255-313

307-375

288-353

346-423

325-398

389-477

366-448

Water

Temp

Rise °F

8-9

14-17

8-9

13-16

8-9

13-16

7-9

13-16

7-9

13-16

7-9

13-15

7-9

8-10

14-17

8-10

14-17

8-9

13-16

8-9

14-18

8-10

14-18

8-10

14-17

8-10

14-17

Air

Temp

Drop °F

19-23

18-20

19-22

17-20

18-21

17-19

18-21

16-19

17-20

16-18

17-20

15-18

16-19

18-21

17-19

18-21

16-19

17-20

16-18

17-20

19-22

20-23

18-21

19-23

18-21

19-22

17-20

Suction

Pressure

PSIG

75-91

79-96

88-107

92-112

98-122

110-130

112-136

117-143

124-152

131-159

136-166

143-174

149-181

156-190

76-92

80-97

89-108

93-113

106-118

110-126

113-138

119-145

126-155

133-162

138-168

145-177

151-184

158-193

Discharge

Pressure

PSIG

264-322

270-331

277-339

284-348

291-356

298-364

304-372

312-381

318-389

325-398

331-405

339-415

345-422

352-432

242-297

249-304

255-312

261-320

267-327

274-335

280-342

287-351

292-358

300-367

305-373

312-382

317-388

325-398

4-5

7-8

5-6

8-9

5-6

8-10

6-7

3-4

2-3

4-5

3-3

5-6

3-4

6-7

This chart shows approximate temperatures and pressures for a unit in good repair. The values shown are meant as a guide only and should not be used to estimate system charge. This chart assumes rated air flow and 80º d.b./67º w.b. entering air temperature in cooling, 70º d.b. entering air temperature in heating. Heating data at entering fluid temperatures below 50º assumes the use of antifreeze. As a result of continuing research and development, specifications are subject to change without notice.

20-23

21-24

22-26

23-27

24-29

25-29

26-31

13-14

13-15

15-17

16-18

17-19

18-21

19-22

Water

Temp

Drop

6-7

9-11

6-8

11-13

7-9

12-14

8-10

5-6

3-4

6-7

4-5

7-8

5-6

8-10

Air

Temp

Rise °F

23-28

24-29

26-31

27-32

28-33

29-35

31-37

15-17

16-18

17-20

18-21

20-23

21-24

22-26

8 733 920 846 (2015/01) Subject to change without prior notice SM CS Series Heat Pump

SM CS Series Heat

Operating Temperatures and Pressures | 25

Operating Temperatures and Pressures

COOLING HEATING

SM036

Part

Load

SM036

Full

Load

30°

40°

50°

60°

70°

80°

90°

100°

30°

40°

50°

60°

70°

80°

90°

9.0

4.5

9.0

4.5

9.0

9.0

4.5

9.0

4.5

9.0

4.5

9.0

4.5

9.0

4.5

9.0

4.5

9.0

4.5

9.0

4.5

9.0

4.5

9.0

4.5

4.5

9.0

4.5

9.0

4.5

9.0

4.5

117-143

112-137

126-154

121-148

131-160

125-153

135-165

130-158

140-171

134-164

144-176

138-169

149-182

143-174

122-149

117-143

131-160

126-154

136-166

131-160

141-172

135-165

145-178

140-171

150-183

144-176

155-189

149-182

189-231

178-217

221-270

207-253

252-308

237-290

284-347

266-326

320-391

300-367

360-440

338-414

405-495

381-465

183-224

172-210

214-261

201-245

244-298

230-281

275-336

258-316

310-378

291-356

349-426

328-401

392-480

369-451

7-9

13-16

7-9

13-16

7-9

13-15

7-9

14-17

8-9

14-17

8-9

13-16

8-9

13-16

8-10

14-17

8-10

14-17

8-9

13-16

8-9

14-18

8-10

14-18

8-10

14-17

8-10

14-17

18-22

16-20

17-21

16-19

17-21

15-19

16-20

18-22

19-24

18-21

19-23

17-21

18-22

17-20

18-22

17-20

18-22

16-20

17-21

16-19

17-21

19-23

20-24

18-22

19-24

18-22

19-23

17-21

74-90

78-95

87-106

91-111

95-105

100-125

111-136

117-143

124-152

131-160

136-166

143-175

149-182

156-191

73-89

77-94

86-105

90-110

105-125

109-130

110-134

115-141

122-150

129-157

134-164

141-172

147-179

154-188

244-299

251-306

257-314

263-322

269-329

276-337

282-344

289-353

294-360

302-369

307-375

314-384

319-390

327-400

266-325

272-333

279-341

286-350

293-358

300-366

306-374

314-383

320-391

327-400

333-407

341-417

347-424

355-434

4-5

7-8

5-6

8-9

5-6

8-10

6-7

3-4

2-3

4-5

3-3

5-6

3-4

6-7

6-7

9-11

6-8

11-13

7-9

12-14

8-10

5-6

3-4

6-7

4-5

7-8

5-6

8-10

100°

This chart shows approximate temperatures and pressures for a unit in good repair. The values shown are meant as a guide only and should not be used to estimate system charge. This chart assumes rated air flow and 80º d.b./67º w.b. entering air temperature in cooling, 70º d.b. entering air temperature in heating. Heating data at entering fluid temperatures below 50º assumes the use of antifreeze. As a result of continuing research and development, specifications are subject to change without notice.

23-29

24-30

26-32

27-33

28-35

29-36

31-38

15-18

16-19

17-21

18-22

20-24

21-25

22-27

20-24

21-25

22-27

23-28

24-30

25-30

26-32

13-15

13-16

15-18

16-19

17-20

18-22

19-23

Revised 01-15 8 733 920 846 (2015/01)

26 | Operating Temperatures and Pressures

SM CS Series Heat Pump

Operating Temperatures and Pressures

COOLING HEATING

SM048

Part

Load

SM048

Full

Load

30°

40°

50°

60°

70°

80°

90°

100°

30°

40°

50°

60°

70°

80°

90°

12.0

6.0

12.0

6.0

12.0

6.0

12.0

6.0

12.0

12.0

6.0

12.0

6.0

12.0

6.0

12.0

6.0

12.0

6.0

12.0

6.0

12.0

6.0

12.0

6.0

6.0

12.0

6.0

12.0

6.0

12.0

6.0

109-134

105-128

118-144

113-138

122-149

117-143

126-154

121-148

130-159

132-153

134-164

129-158

139-170

133-163

118-144

113-138

127-155

122-149

131-160

126-154

136-166

130-159

140-171

135-165

145-177

139-170

149-183

143-175

183-224

172-210

214-261

201-245

244-298

230-281

275-336

258-316

310-378

291-356

349-426

328-401

392-480

369-451

194-237

182-223

226-276

213-260

259-316

243-297

291-355

273-334

328-401

308-377

369-451

347-424

415-508

391-477

10-12

17-21

10-12

17-20

9-12

16-20

9-11

18-22

10-12

18-22

10-12

17-21

10-12

17-21

12-14

20-24

11-14

20-24

11-14

19-24

11-14

21-25

12-14

21-25

12-14

21-25

12-14

20-25

19-23

17-21

18-22

17-20

18-22

16-20

17-21

19-23

20-25

19-23

20-24

18-22

19-24

18-22

18-22

17-20

18-22

16-20

17-21

16-19

17-21

19-23

20-24

18-22

19-24

18-22

19-23

17-21

71-87

75-92

84-102

88-108

92-110

98-120

108-132

113-138

120-147

126-154

131-161

138-169

144-176

151-185

101-123

107-131

113-138

117-143

123-151

128-157

135-165

64-78

67-82

75-91

79-96

78-90

82-95

96-117

277-339

284-347

291-356

299-365

305-373

313-383

320-391

328-400

334-408

342-418

348-425

356-436

362-442

371-453

248-303

254-311

261-319

267-327

273-334

280-342

286-349

293-358

299-365

306-374

311-380

319-390

324-396

332-406

7-9

12-15

8-10

14-17

9-11

15-18

10-12

6-7

4-5

7-9

5-6

9-11

6-7

10-13

6-8

11-13

7-9

12-15

8-10

13-16

9-11

5-6

3-4

6-8

4-5

8-10

5-7

9-11

100°

This chart shows approximate temperatures and pressures for a unit in good repair. The values shown are meant as a guide only and should not be used to estimate system charge. This chart assumes rated air flow and 80º d.b./67º w.b. entering air temperature in cooling, 70º d.b. entering air temperature in heating. Heating data at entering fluid temperatures below 50º assumes the use of antifreeze. As a result of continuing research and development, specifications are subject to change without notice.

24-29

25-30

26-32

27-33

29-35

29-36

31-38

15-18

16-19

17-21

18-23

20-24

21-26

22-27

24-29

25-31

27-32

27-34

29-36

30-37

32-39

15-19

16-20

18-22

19-23

20-25

21-26

23-28

8 733 920 846 (2015/01) Subject to change without prior notice SM CS Series Heat Pump

SM CS Series Heat

Operating Temperatures and Pressures | 27

Operating Temperatures and Pressures

COOLING HEATING

SM060

Part

Load

SM060

Full

Load

30°

40°

50°

60°

70°

80°

90°

100°

30°

40°

50°

60°

70°

80°

90°

14.0

7.0

14.0

7.0

14.0

7.0

14.0

7.0

14.0

14.0

7.0

14.0

7.0

14.0

7.0

14.0

7.0

14.0

7.0

14.0

7.0

14.0

7.0

14.0

7.0

7.0

14.0

7.0

14.0

7.0

14.0

7.0

113-138

110-134

116-142

112-137

118-145

115-140

121-148

117-143

123-151

120-146

126-154

122-149

128-157

125-152

117-143

114-139

120-147

117-143

123-150

119-146

126-154

122-149

129-157

125-153

132-161

128-156

134-164

131-160

172-210

161-196

206-252

193-236

241-294

225-275

275-336

257-314

309-378

289-353

344-420

321-392

378-462

353-432

182-222

170-208

215-263

201-246

248-304

232-284

282-344

263-322

315-385

294-360

348-426

326-398

382-466

357-436

11-14

16-20

11-13

16-20

11-13

16-19

11-13

18-22

12-14

17-21

12-14

17-21

11-14

17-21

10-13

13-16

10-12

13-16

10-12

12-15

9-11

15-19

11-14

15-18

11-14

14-17

11-13

14-17

19-23

18-22

19-23

18-22

18-22

17-21

18-22

19-23

20-24

19-23

19-24

18-23

19-23

18-22

20-25

19-23

19-24

18-22

19-23

17-21

18-22

21-26

22-27

20-25

21-26

20-24

21-25

19-24

68-84

73-89

81-99

86-105

93-114

99-121

106-129

113-138

118-145

126-154

131-160

139-170

143-175

152-186

68-84

73-89

81-99

86-105

93-114

99-121

106-129

113-138

118-145

126-154

131-160

139-170

143-175

152-186

256-313

261-319

277-339

283-346

299-365

305-373

321-392

327-400

342-418

349-427

364-444

371-454

385-471

393-480

256-313

261-319

277-339

283-346

299-365

305-373

321-392

327-400

342-418

349-427

364-444

371-454

385-471

393-480

7-8

10-12

8-9

11-14

8-10

12-15

9-11

5-7

4-5

7-8

5-6

8-9

6-7

9-11

7-8

10-12

8-9

11-14

8-10

12-15

9-11

5-7

4-5

7-8

5-6

8-9

6-7

9-11

100°

This chart shows approximate temperatures and pressures for a unit in good repair. The values shown are meant as a guide only and should not be used to estimate system charge. This chart assumes rated air flow and 80º d.b./67º w.b. entering air temperature in cooling, 70º d.b. entering air temperature in heating. Heating data at entering fluid temperatures below 50º assumes the use of antifreeze. As a result of continuing research and development, specifications are subject to change without notice.

28-34

29-35

30-37

31-38

33-40

33-41

35-43

19-23

20-25

22-26

23-28

24-29

25-31

26-32

28-34

29-35

30-37

31-38

33-40

33-41

35-43

19-23

20-25

22-26

23-28

24-29

25-31

26-32

Revised 01-15 8 733 920 846 (2015/01)

28 | Operating Temperatures and Pressures

SM CS Series Heat Pump

Operating Temperatures and Pressures

COOLING HEATING

SM070

Part

Load

SM070

Full

Load

30°

40°

50°

60°

70°

80°

90°

100°

30°

40°

50°

60°

70°

80°

90°

18.0

9.0

18.0

9.0

18.0

9.0

18.0

9.0

18.0

18.0

9.0

18.0

9.0

18.0

9.0

18.0

9.0

18.0

9.0

18.0

9.0

18.0

9.0

18.0

9.0

9.0

18.0

9.0

18.0

9.0

18.0

9.0

116-141

113-137

119-145

115-140

121-148

118-143

124-151

120-146

126-154

123-149

129-157

125-152

131-160

128-155

120-146

117-142

123-150

120-146

126-153

122-149

129-157

125-152

132-160

128-156

135-164

131-159

137-167

134-163

175-213

164-199

209-255

196-239

244-297

228-278

278-339

260-317

312-381

292-356

347-423

324-395

381-465

356-435

185-225

173-211

218-266

204-249

251-307

235-287

285-347

266-325

318-388

297-363

351-429

329-401

385-469

360-439

11-14

16-20

11-13

16-20

11-13

16-19

11-13

18-22

12-14

17-21

12-14

17-21

11-14

17-21

10-13

13-16

10-12

13-16

10-12

12-15

9-11

15-19

11-14

15-18

11-14

14-17

11-13

14-17

19-23

18-22

19-23

18-22

18-22

17-21

18-22

19-23

20-24

19-23

19-24

18-23

19-23

18-22

20-25

19-23

19-24

18-22

19-23

17-21

18-22

21-26

22-27

20-25

21-26

20-24

21-25

19-24

71-87

76-92

84-102

89-108

96-117

102-124

109-132

116-141

121-148

129-157

134-163

142-173

146-178

155-189

71-87

76-92

84-102

89-108

96-117

102-124

109-132

116-141

121-148

129-157

134-163

142-173

146-178

155-189

259-316

264-322

280-342

286-349

302-368

308-376

324-395

330-403

345-421

352-430

367-447

374-457

388-474

396-483

259-316

264-322

280-342

286-349

302-368

308-376

324-395

330-403

345-421

352-430

367-447

374-457

388-474

396-483

7-8

10-12

8-9

11-14

8-10

12-15

9-11

5-7

4-5

7-8

5-6

8-9

6-7

9-11

7-8

10-12

8-9

11-14

8-10

12-15

9-11

5-7

4-5

7-8

5-6

8-9

6-7

9-11

100°

This chart shows approximate temperatures and pressures for a unit in good repair. The values shown are meant as a guide only and should not be used to estimate system charge. This chart assumes rated air flow and 80º d.b./67º w.b. entering air temperature in cooling, 70º d.b. entering air temperature in heating. Heating data at entering fluid temperatures below 50º assumes the use of antifreeze. As a result of continuing research and development, specifications are subject to change without notice.

28-34

29-35

30-37

31-38

33-40

33-41

35-43

19-23

20-25

22-26

23-28

24-29

25-31

26-32

28-34

29-35

30-37

31-38

33-40

33-41

35-43

19-23

20-25

22-26

23-28

24-29

25-31

26-32

8 733 920 846 (2015/01) Subject to change without prior notice SM CS Series Heat Pump

SM CS Series Heat

WATER SIDE PRESSURE DROP TABLE

16

7.5

10

12.5

15

17.5

20

7.5

10

12.5

15

17.5

20

8

10

12

14

12

14

16

6

8

6

6

7

8

10

3

4

5

Figure 14: Water side pressure drop in PSIG

Series

SM024

SM036

SM048

SM060

SM070

GPM

Water PD @ 77°EWT with Water

3.9

5.2

6.6

1.1

6.2

1.1

1.9

2.8

1.9

2.8

3.9

5.2

6.6

1.8

2.7

3.7

4.9

3.7

4.9

6.2

1.1

0.7

1.2

1.7

2.4

3.2

4.0

1.1

1.8

2.7

Water Side Pressure Drop Table | 29

Revised 01-15 8 733 920 846 (2015/01)

30 | Wiring Diagrams

WIRING DIAGRAMS

SM CS Series Heat Pump

8 733 920 846 (2015/01) Subject to change without prior notice SM CS Series Heat Pump

SM CS Series Heat

DIMENSIONAL DRAWINGS

Dimensional Drawings | 31

Revised 01-15 8 733 920 846 (2015/01)

32 | Spare Parts List

SM CS Series Heat Pump

SPARE PARTS LIST

Each section is started with kit names and part numbers, followed by an exploded view illustration identifying all the available components, assemblies and kits.

Item #1 is not available as a part kit for ordering.

CONDENSING SECTION - PARTS LIST

Item

1

2

3

4

5

6

7

13

14

15

16

9

10

11

12

8

17

Description

Base Pan Kit

Water Post Kit

Regular Post Kit

Electrical Post Kit

Logo Panel Kit

Side Panel Kit

Top Panel Kit

Water Coil Kit - Cu

Water Coil Kit - CuNi

Freeze Sensor Kit

TXV Kit

SM024-1CSCSM036-1CSCSM048-1CSCSM060-1CSCSM070-1CSCSM024-1CSNSM036-1CSNSM048-1CSNSM060-1CSNSM070-1CSN

N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A

8733921307 8733921307 8733921307 8733921308 8733921308 8733921307 8733921307 8733921307 8733921308 8733921308

8733921311 8733921311 8733921311 8733921312 8733921312 8733921311 8733921311 8733921311 8733921312 8733921312

8733921309 8733921309 8733921309 8733921310 8733921310 8733921309 8733921309 8733921309 8733921310 8733921310

8733921315 8733921315 8733921315 8733921316 8733921316 8733921315 8733921315 8733921315 8733921316 8733921316

8733921317 8733921317 8733921317 8733921318 8733921318 8733921317 8733921317 8733921317 8733921318 8733921318

8733921313 8733921313 8733921313 8733921314 8733921314 8733921313 8733921313 8733921313 8733921314 8733921314

8733911206 8733911208 8733911208 8733911209 8733911209

N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A

8733911211 8733911213 8733911213 8733911214 8733911214

8733802689 8733802689 8733802689 8733802689 8733802689 8733802689 8733802689 8733802689 8733802689 8733802689

8733921306 8733802741 8733802741 8733802741 8733802741 8733921306 8733802741 8733802741 8733802741 8733802741

Floating Base Pan Kit

Compressor Kit

EBOX Kit

Lo Pressure Switch Kit

N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A

8733802648 8733802730 8733802731 8733802732 8733802733 8733802648 8733802730 8733802731 8733802732 8733802733

8733921319 8733921319 8733921319 8733921319 8733921319 8733921319 8733921319 8733921319 8733921319 8733921319

8733802651 8733802651 8733802651 8733802651 8733802651 8733802651 8733802651 8733802651 8733802651 8733802651

Hi Pressure Switch Kit 8733802652 8733802652 8733802652 8733802652 8733802652 8733802652 8733802652 8733802652 8733802652 8733802652

Reversing Valve Kit 8733802649 8733802734 8733802735 8733802735 8733802735 8733802649 8733802734 8733802735 8733802735 8733802735

1" Swivel Fitting 7/8" SWT Spare Kit 8733921320 N/A N/A N/A N/A 8733921320 N/A N/A N/A N/A

1" Swivel Fitting 1 1/8" SWT Spare Kit N/A 8733921321 8733921321 8733921321 8733921321 N/A 8733921321 8733921321 8733921321 8733921321

18 Handle Plastic Kit 8733921322 8733921322 8733921322 8733921322 8733921322 8733921322 8733921322 8733921322 8733921322 8733921322

19

20

Gasket 1” Swivel fitting Spare kit

Capacitor Kit

21 UPM Kit

22 # Transformer Kit

23 Condensate Sensor Kit

24 * HRP Relay Kit

25 # HRP Switch Kit

8733802660 8733802749 8733802750 8733802751 8733802752 8733802660 8733802749 8733802750 8733802751 8733802752

8733802661 8733802661 8733802661 8733802661 8733802661 8733802661 8733802661 8733802661 8733802661 8733802661

8733802662 8733802753 8733802753 8733802754 8733802754 8733802662 8733802753 8733802753 8733802754 8733802754

8733802663 8733802663 8733802663 8733802663 8733802663 8733802663 8733802663 8733802663 8733802663 8733802663

8733802664 8733802664 8733802664 8733802664 8733802664 8733802664 8733802664 8733802664 8733802664 8733802664

8733802665 8733802756 8733802757 8733802758 8733802758 8733802665 8733802756 8733802757 8733802758 8733802758

8733802699 8733802699 8733802699 8733802699 8733802699 8733802699 8733802699 8733802699 8733802699 8733802699

26 # HRP Coil Kit

27 # HRP Pump Kit

28 # Filter Drier Spare kit

29 # DPS Switch Kit

8733802702 8733802702 8733802788 8733802788 8733802788 8733802702 8733802702 8733802788 8733802788 8733802788

8733802703 8733802703 8733802703 8733802703 8733802703 8733802703 8733802703 8733802703 8733802703 8733802703

8733802650 8733802650 8733802650 8733802650 8733802650 8733802650 8733802650 8733802650 8733802650 8733802650

8733802697 8733802697 8733802697 8733802697 8733802697 8733802697 8733802697 8733802697 8733802697 8733802697

30 # Filter Drier Kit

31 # Main Harness Spare Part kit

8733802650 8733802650 8733802650 8733802650 8733802650 8733802650 8733802650 8733802650 8733802650 8733802650

8733802671 8733802671 8733802671 8733802671 8733802671 8733802671 8733802671 8733802671 8733802671 8733802671

32 # Comfort Alert Module spare kit 8733802710 8733802710 8733802710 8733802710 8733802710 8733802710 8733802710 8733802710 8733802710 8733802710

33 # HRP Hi and Lo Water Temp Switch kit 8733802700 8733802700 8733802700 8733802700 8733802700 8733802700 8733802700 8733802700 8733802700 8733802700

34 # Serv valve kit with 3/4” suct line

35 # Serv valve kit with 7/8” suct line

36 Lo Pressure Switch spare kit

8733921323 8733921323 8733921323 8733921323 8733921323

N/A N/A N/A N/A N/A

N/A N/A N/A N/A N/A

8733921324 8733921324 8733921324 8733921324 8733921324

8733802651 8733802651 8733802651 8733802651 8733802651 8733802651 8733802651 8733802651 8733802651 8733802651

37 Hi Pressure Switch Spare kit 8733802652 8733802652 8733802652 8733802652 8733802652 8733802652 8733802652 8733802652 8733802652 8733802652

38 * Smart Start Assist spare kit 8733911461 8733911461 8733911461 8733911461 8733911461 8733911461 8733911461 8733911461 8733911461 8733911461

# not shown in drawing

* Detailed view available

All refrigerant circuit components kit includes filter drier

8 733 920 846 (2015/01) Subject to change without prior notice SM CS Series Heat Pump

SM CS Series Heat

CS Parts List - Cabinet

Spare Parts List | 33

Revised 01-15

Figure # 15

8 733 920 846 (2015/01)

34 | Spare Parts List

CS Parts List -Refrigeration/Electrical

SM CS Series Heat Pump

8 733 920 846 (2015/01)

Figure # 16

Subject to change without prior notice SM CS Series Heat Pump

SM CS Series Heat

CS Parts List - Handle

Spare Parts List | 35

Revised 01-15 8 733 920 846 (2015/01)

36 | Spare Parts List

CS Parts List - EBOX

SM CS Series Heat Pump

8 733 920 846 (2015/01) Subject to change without prior notice SM CS Series Heat Pump

SM CS Series Heat

NOTES

Notes | 37

Revised 01-15 8 733 920 846 (2015/01)

38 | Notes

SM CS Series Heat Pump

8 733 920 846 (2015/01) Subject to change without prior notice SM CS Series Heat Pump

SM CS Series Heat

Notes | 39

Revised 01-15 8 733 920 846 (2015/01)

601 N.W. 65th Court, Ft. Lauderdale, FL 33309

Phone: 866-642-3198 | Fax: 954-776-5529 www.boschtaxcredit.com | www.bosch-climate.us

Revised 01-15

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