Lenox 50677201, Elite Series XP14 Units HEAT PUMPS CBX32MV−018/024 CX34−31

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System Operation
IMPORTANT
Some scroll compressor have internal vacuum protector that will unload scrolls when suction pressure goes below 20 psig. A hissing sound will be heard when the compressor is running unloaded. Protector will reset when low pressure in system is raised above 40 psig. DO NOT REPLACE COMPRESSOR.
High Pressure Switch (S4)
This unit is equipped with a auto-reset high pressure switch (single−pole, single−throw) which is located on the liquid line. The switch shuts off the compressor when discharge pressure rises above the factory setting. High Pressure (auto reset) − trip at 590 psig, reset at 418 psig.

Table 5. Indoor Unit Matches, Targeted Subcooling, and Add Charge Values

OD Size

−018

−024

−030

Indoor Model #

Subcool

Additional

OD

Indoor Model #

Subcool

Additional

OD

Indoor Model #

Subcool

Additional

Heat

Cool

Charge

Size

Heat

Cool

Charge

Size

Heat

Cool

Charge

 

 

 

CBX27UH−018

13

14

1

9

 

CH33−43C

4

9

1

12

 

CH33−60D

12

8

0

9

CBX27UH−024

13

14

1

9

 

CR33−30, −36

22

5

1

0

 

CH33−62D

19

7

1

7

CBX32MV−018/024

12

14

0

0

 

CX34−31

17

15

2

10

 

CR33−50, −60

29

5

0

4

CH33−25A

14

14

0

7

−030

CX34−36

25

6

0

10

 

CR33−60D

29

5

0

4

CH33−25B

14

13

0

5

CX34−38

14

17

2

10

−042

CX34−49

11

6

1

4

 

CR33−30/36

12

5

0

7

 

CX34−42

25

6

0

10

 

CX34−50, −60

25

8

1

15

CX34−25

15

15

1

1

 

CX34−43

13

17

2

14

 

CX34−60

8

8

1

4

CX34−31

14

24

1

12

 

CX34−44, −48

9

21

2

12

 

CX34−62C

8

11

3

10

CBX26UH−024

17

3

0

15

 

CBX26UH−036

31

3

0

4

 

CX34−62D

11

7

1

15

CBX27UH−024

12

12

1

2

 

CBX27UH−036

18

3

0

5

 

CBX26UH−048

20

10

3

11

CBX32M−018, −024

14

11

0

4

 

CBX27UH−042

11

4

0

1

 

CBX27UH−048

16

6

0

0

CBX32M−030

12

12

1

2

 

CBX27UH−048

11

4

0

1

 

CBX27UH−060

12

6

1

4

CBX32MV−018/024

14

11

0

4

 

CBX32M−036

18

3

0

5

 

CBX32M−048

16

6

0

0

CBX32MV−024/030

12

12

1

2

 

CBX32M−042

18

3

0

5

 

CBX32M−060

20

8

1

0

CBX32MV−036

11

11

2

1

 

CBX32MV−036

18

3

0

5

 

CBX32MV−048

16

6

0

0

CBX40UHV−024

11

11

2

1

 

CBX32MV−048

11

4

0

1

 

CBX32MV−060

20

8

1

0

CBX40UHV−030

11

11

2

1

 

CBX40UHV−042

11

4

0

1

 

CBX32MV−068

10

8

4

5

CH23−41

10

3

0

0

 

CBX40UHV−048

11

4

0

1

 

CBX40UHV−048

16

6

0

0

CH33−25A

20

10

1

1

 

CBX40UHV−036

18

3

0

5

−048

CBX40UHV−060

20

8

1

0

CH33−25B

19

8

1

2

 

CH33−43B

14

8

2

1

CH23−68

24

6

2

8

−036

 

CH33−31A

15

11

1

15

CH33−43C

26

9

2

10

 

CH33−50, −60C

17

6

1

5

 

 

CH33−36C

10

12

0

0

 

CH33−44/48B

24

8

2

3

 

CH33−60D

18

6

0

13

CH33−36A

20

10

1

1

 

CH33−48C

26

9

2

10

 

CH33−62D

13

7

3

6

CR33−30, −036

17

4

0

14

 

CH33−49C

15

8

2

12

 

CR33−50/60

19

6

1

1

CX34−25

15

9

0

15

 

CH33−50/60C

15

8

2

12

 

CR33−60

19

6

1

1

CX34−31

15

16

0

9

 

CR33−48

38

5

0

0

 

CX34−49C

10

6

1

9

CX34−36

26

6

0

9

 

CR33−50, −60

15

5

1

4

 

CX34−60

28

7

3

14

CX34−38

13

11

1

7

 

CX34−38

40

4

0

15

 

CX34−62C

10

6

3

12

CBX26UH−030

19

11

1

5

 

CX34−43

23

8

2

8

 

CX34−62D

14

7

3

12

CBX27UH−030

10

2

2

15

 

CX34−44/48

40

4

0

15

 

CBX26UH−060

31

6

3

0

CBX27UH−036

10

2

2

15

 

CX34−49

11

7

3

9

 

CBX27UH−060

13

7

0

8

CBX32M−030

15

4

2

7

 

CX34−50/60

23

8

2

8

 

CBX32M−060

17

5

1

4

CBX32M−036

10

2

2

15

 

CBX26UH−042

42

5

0

8

 

CBX32MV−048

20

6

0

0

CBX32MV−024, −030

15

4

2

7

 

CBX27UH−042

13

5

2

2

 

CBX32MV−060

17

5

1

4

CBX32MV−036

10

2

2

15

 

CBX32M−048

13

5

2

2

 

CBX32MV−068

11

8

2

12

CBX40UHV−030

10

2

2

15

 

CBX32MV−048

13

5

2

2

 

CBX40UHV−048

20

6

0

0

CBX40UHV−036

10

2

2

15

 

CBX40UHV−042

13

5

2

2

−060

CBX40UHV−060

17

5

1

4

CH23−41

11

4

0

8

 

CBX40UHV−048

13

5

2

2

 

CH23−68

27

7

0

13

CH23−51

11

6

0

14

−042

CH23−68

20

9

1

5

 

CH33−50, −60C

11

4

0

0

CH33−31A

16

18

2

8

 

CH33−43B

7

9

3

2

 

CH33−62D

19

6

2

4

CH33−31B

16

18

2

6

 

CH33−43C

22

5

1

0

 

CR33−50/60

19

6

2

4

CH33−36A

10

6

0

6

 

CH33−44/48B

18

4

0

0

 

CR33−60

23

6

1

3

CH33−36B

6

3

0

0

 

CH33−48C

22

5

1

0

 

CX34−62C

10

7

2

14

CH33−36C

10

11

1

5

 

CH33−49C

16

6

1

6

 

CX34−62D

19

7

3

2

CH33−42B

16

18

2

6

 

CH33−50, −60C

10

9

3

4

 

 

 

 

 

 

*Amount of charge required in additional to charge shown on unit nameplate.

Low Pressure Switch (S87)

This unit is equipped an auto−reset low pressure switch which is located on the vapor line. The switch shuts off the compressor when the vapor pressure falls below the factory setting. Low Pressure (auto reset) − trip at 25 psig, reset at 40 psig.

Low Pressure Switch Bypass (S41) (Optional)

For use in applications where the heat pump is operated in outdoor ambient temperatures below 15°F.

S Prevents nuisance trips form the low pressure switch S Wired in parallel with the low pressure switch

Thermal Protection Switch (S173)

Mounted

Some units are equipped with a compressor mounted normally closed temperature switch that prevents compressor damage due to overheating caused by internal friction. The switch is located on top of the compressor casing (see figure 1). This switch senses the compressor casing temperature and opens at 239−257°F (115°C−125°C) to shut off compressor operation. The

506728−01

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Contents Shipping and Packing List Table of ContentsGeneral Unit Dimensions Inches mm Model Number Identification 14 −036 − 230 −Side View TOP ViewTypical Unit Parts Arrangement PLUMBING, Switches Sensor ComponentsControl Panel Operating Gauge Set and Service Valves Caps and Fasteners Torque Requirements11 12 Recovering Refrigerant from Existing System 1DISCONNECT Power3RECOVERING Refrigerant Method Method 2 LimitationsNew Outdoor Unit Placement Detail a Outside Unit Placement Using Feet ExtendersElevated Slab Mounting Detail D Slab Side MountingLouvered Panel Installation Removing and Installing PanelsLouvered Panel Removal NEW or Replacement Line SET Installation Using Existing Line SETLine Set Requirements Adding Polyol Ester OIL RequirementsRefrigerant Line SET From Vertical to Horizontal Refrigerant Line SET Alling Horizontal RunsBrazing Connections 1CUT and Debur 2CAP and Core RemovalWrap Service Valves Flow Nitrogen6BRAZE Line SET Preparation for Next Step2CONNECT Gauges and Equipment for Flushing Procedure Installing New Indoor Metering Device Indoor Expansion Valve InstallationSensing Bulb Installation Equalizer Line InstallationManifold Gauge Set Connections for Leak Testing Leak Test Line Set and Indoor CoilEvacuating Line Set and Indoor Coil Evacuating Line Set and Indoor CoilSize Circuit and Install Disconnect 2INSTALL ThermostatElectrical 24VAC TransformerTypical Unit Wiring Diagram Typical Factory Wiring Copeland Compressor Typical Factory Wiring Interlink Compressor Unit Start−Up Unit START−UPLeak CHECK, Repair and Evacuate Connect Manifold Gauge SET and WEIGH−IN ChargeCalculating System Charge for Outdoor Unit Void of Charge Connections for Optimizing System ChargeRefrigerant Charge per Line Set Length Adjusting Indoor Airflow Optimizing ProcedureTemperature rise F Optimizing System Refrigerant ChargeSATº LIQº SCº = Normal Operating Pressures − Liquid +10 and Vapor +5 Psig CBX32MV−018/024 CX34−31 Defrost System Defrost Control CMC1Maintenance Defrost Control CMC1 Diagnostic LEDDealer HomeownerXP14 Series Start−Up and Performance Checklist Installer CityJob Name Job no Date Job Location City Sequence of Operation Thermostat