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SPECIFICATIONS single phase

General
D t

Model No.

HPXA12−018

HPXA12−024

HPXA12−030

HPXA12−036

Data

Nominal Tonnage (kW)

1.5 (5.3)

2 (7.0)

2.5 (8.8)

3 (10.6)

Connections
(sweat)

Liquid line o.d. − in. (mm)

3/8 (9.5)

3/8 (9.5)

3/8 (9.5)

3/8 (9.5)

(sweat)

Vapor line o.d. − in. (mm)

3/4 (19.1)

3/4 (19.1)

3/4 (19.1)

7/8 (22.2)

Refrigerant (R410A) furnished

7 lbs. 5 oz. (3.31 kg)

6 lbs. 12 oz. (3.06

kg)

7 lbs. 12 oz. (3.51

kg)

8 lbs. 15 oz. (4.1 kg)

Outdoor
Coil

Diameter − in. (mm) & no. of blades

18 (457) − 3

18 (457) − 3

18 (457) − 4

18 (457) − 4

Coil
Fan

Motor hp (W)

1/6 (124)

1/6 (124)

1/6 (124)

1/6 (124)

Fan

Cfm (L/s)

2500 (1180)

2500 (1180)

2450 (1155)

2450 (1155)

Rpm

1100

1100

1100

1100

Watts

200

200

200

200

Outdoor
Coil

Net face area

Outer coil

15.21 (1.41)

15.21 (1.41)

15.21 (1.41)

15.21 (1.41)

Coil

Net face area

 sq. ft. (m

2

)

Inner coil

5.44 (0.51)

5.44 (0.51)

14.50 (1.35)

14.50 (1.35)

Tube diameter − in. (mm) & no. of rows

5/16 (8) − 1.37

5/16 (8) − 1.37

5/16 (8) − 2

5/16 (8) − 2

Fins per inch (m)

18 (709)

18 (709)

18 (709)

18 (709)

Shipping Data

lbs. (kg) 1 package

160 (73)

160 (73)

176 (80)

181 (82)

OPTIONAL ACCESSORIES − MUST BE ORDERED EXTRA

Compressor Monitor

 (Canada Only)

45F08

45F08

45F08

45F08

Hail Guards

17L73

17L73

17L73

17L73

Mild Ambient Kit

 (LB-101122)

32M08

32M08

32M08

32M08

Monitor Kit

 (Canada Only)

76F53

76F53

76F53

76F53

Outdoor
Thermostat

Thermostat

56A87

56A87

56A87

56A87

Thermostat
Kit

Mounting Box − US

31461

31461

31461

31461

Kit

Canada

33A29

33A29

33A29

33A29

Plastic
Mounting

Part No. − Catalog Number

MB2-S 

(69J06)

MB2-S 

(69J06)

MB2-S 

(69J06)

MB2-S 

(69J06)

Mounting
Base

Net Weight

6 lbs. (3 kg)

6 lbs. (3 kg)

6 lbs. (3 kg)

6 lbs. (3 kg)

Refrigerant
Line Set

30 ft. (9 m) length

L15−41−30

L15−41−30

L15−41−30

L15−65−30

Line Set

40 ft. (12 m) length

L15−41−40

L15−41−40

L15−41−40

L15−65−40

50 ft. (15 m) length

L15−41−50

L15−41−50

L15−41−50

L15−65−50

Suction/Vapor Line o.d. − in. (mm)

3/4 (19)

3/4 (19)

3/4 (19)

7/8 (22.2)

Liquid Line o.d. − in. (mm)

3/8 (9.5)

3/8 (9.5)

3/8 (9.5)

3/8 (9.5)

Unit Stand-Off Kit

94J45

94J45

94J45

94J45

Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements.

Refrigerant charge is sufficient for 15 ft. (4.5 m) length line set.

NOTE − Extremes of operating range are plus 10% and minus 5% of line voltage

Summary of Contents for HPXA12 SERIES

Page 1: ...quipment rated for R410A WARNING Warranty will be voided if covered equipment is re moved from original installation site Warranty will not cover damage or defect resulting from Flood wind lightning o...

Page 2: ...80 181 82 OPTIONAL ACCESSORIES MUST BE ORDERED EXTRA Compressor Monitor Canada Only 45F08 45F08 45F08 45F08 Hail Guards 17L73 17L73 17L73 17L73 Mild Ambient Kit LB 101122 32M08 32M08 32M08 32M08 Monit...

Page 3: ...B2 L 69J07 Mounting Base Net Weight 6 lbs 3 kg 15 lbs 7 kg 15 lbs 7 kg Refrigerant Li S t 30 ft 9 m length L15 65 30 L15 65 30 Field Fabricate g Line Set 40 ft 12 m length L15 65 40 L15 65 40 Field Fa...

Page 4: ...62 Power Factor 98 98 99 99 99 99 Outdoor Coil F M t Full load amps 1 55 1 9 9 1 9 9 Fan Motor Locked Rotor Amps 2 3 1 4 1 2 1 4 1 2 1 OPTIONAL ACCESSORIES MUST BE ORDERED EXTRA Compressor Low Ambient...

Page 5: ...early compressor failure IMPORTANT This unit must be matched with an indoor coil as specified in Lennox Engineering Handbook II UNIT COMPONENTS Unit components are illustrated in figure 1 COMPRESSOR C...

Page 6: ...nal Y2 for 2nd stage thermostat input 46M8201 56M8501 DELAY pins 56M8501 The demand defrost board uses basic differential temper ature means to detect degradation of system performance due to ice buil...

Page 7: ...e Y1 Out line is engaged a 5 minute short cycle will occur after the switch closes Operational Description The demand defrost board has three basic operational modes Normal Defrost and Calibration Nor...

Page 8: ...period If the board fails to calibrate another defrost cycle will be initiated after 90 minutes of heating mode compressor run time Once the defrost board is calibrated it will use de mand defrost log...

Page 9: ...e board and all sensors FLASH FLASH Normal operation Unit operating normally or in standby mode None required ON OFF Strike Out pressure lockout Short test pins or reset 24V power to board to override...

Page 10: ...the two scrolls figure 10 1 The centrifugal action of the orbiting scroll seals off the flanks of the scrolls figure 10 2 As the orbiting motion contin ues the gas is forced toward the center of the s...

Page 11: ...uire a run capacitor In all units the condenser fan is controlled by the compressor contactor ELECTRICAL DATA tables in this manual show specifi cations for condenser fans used in HPXA12s Access to th...

Page 12: ...ch settings for R410A refrigerant will be significantly higher than units with R22 An auto reset single pole single throw high pressure switch is located in the liquid line This switch shuts off the c...

Page 13: ...ON OF REFRIGERANT FLOW SERVICE PORT SUCTION EXPANSION CHECK VALVE INDOOR UNIT OUTDOOR UNIT LIQUID LINE SERVICE PORT GAUGE MANIFOLD INTERNAL COMPRESSOR LIMIT DISTRIBUTOR INDOOR COIL COIL SENSOR FIGURE...

Page 14: ...em out counterclockwise as far as it will go NOTE Use a 3 16 hex head extension for 3 8 line sizes or a 5 16 extension for large line sizes 3 Replace the stem cap Tighten finger tight then tighten an...

Page 15: ...e high pres sure hose is connected to the liquid line port however connecting it to the vapor port better protects the man ifold gauge set from high pressure damage 6 Adjust the nitrogen pressure to 1...

Page 16: ...injury or death Units are factory charged with the amount of R410A refrig erant indicated on the unit rating plate This charge is based on a matching indoor coil and outdoor coil with 15 ft 4 5m line...

Page 17: ...for checking charge Block equal sections of air intake panels mov ing obstructions sideways as shown until liquid pres sure is in the 300 350 psig 2068 2413 kPa range BLOCKING OUTDOOR COIL CARDBOARD O...

Page 18: ...344 127 380 128 335 100 TABLE 8 R410A Temperature Pressure Chart Temperature F Pressure Psig Temperature F Pressure Psig Temperature F Pressure Psig Temperature F Pressure Psig 32 100 8 63 178 5 94 29...

Page 19: ...eplaced to eliminate moisture from POE oil VI MAINTENANCE In order to maintain the warranty on this equipment the HPXA12 system must be serviced annually and a record of service maintained The followi...

Page 20: ...Page 20 VII WIRING DIAGRAM AND SEQUENCE OF OPERATION 5 6 7 8 9 10 11 12 13 15 1 2 3 4 14 1 4 HPXA12 1 5 THROUGH 5 TON UNIT WIRING Single Phase 230V...

Page 21: ...Page 21 5 6 7 8 9 10 11 12 13 15 2 3 14 1 4 HPXA12 3 THROUGH 5 TON UNIT WIRING Three Phase 230V 7...

Page 22: ...Page 22 5 6 7 8 9 10 11 12 13 15 2 3 14 1 4 HPXA12 3 THROUGH 5 TON UNIT WIRING Three Phase 460V 7...

Page 23: ...K1 5 minute anti cylce time must be satisfied first 11 K1 1 N O closes energizing compressor and out door fan motor 460V units only K1 1 closes energizing compressor B1 and outdoor relay K10 energizin...

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