Lennox HP23 Series Manual Download Page 16 | Manualshive

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HP23 SINGLE PHASE OPERATING SEQUENCE

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Summary of Contents for HP23 Series

Page 1: ...ting in the compressor The heater is temperature actuated and operates only when required A crankcase heater for HP23 141 units is optional but suction accumulator is factory installed Several models...

Page 2: ...lectrical Code manual to determine wire fuse and disconnect size requirements NOTE Extremes of operating range are plus 10 and minus 5 of line voltage ELECTRICAL DATA Model No HP23 413 HP23 461 1 HP23...

Page 3: ...AN MOTOR CONTROL BOX EXPANSION VALVE FIGURE 2 FAN SPIDER A Control Box Figures 3 and 4 FIGURE 3 DUAL CAPACITOR C12 START CAPACITOR C7 POTENTIAL RELAY K31 COMPRESSOR CONTACTOR K1 HP23 UNIT CONTROL BOX...

Page 4: ...t Capacitor C7 All single phase units use a start capacitor C7 C7 is located inside the unit control box see figure 3 C7 is wired in parallel with the compressor side of the dual capacitor See table 2...

Page 5: ...fter defrost begins the timer will de energize the defrost relay and the unit will resume normal operation If the defrost thermostat opens during the 14 minute defrost period the defrost relay is de e...

Page 6: ...and NOTE Hold function operates between thermostat demands only when defrost thermostat is closed This is the only time that the timer is operating 5 TST Pins Each board is equipped with a set of test...

Page 7: ...ing parts a rotor shaft eccentric roller and a blade See figure 11 The compressor rotor shaft is attached directly to the compressor motor The rotor shaft is permanently attached to an eccentric The e...

Page 8: ...t relay ELECTRICAL DATA tables in this manual show specifications for outdoor fans used in HP23s Two different mounting arrangements are used fan up and fan motor up see figures 14 and 15 Access to th...

Page 9: ...LIZER LINE DRIER WITH CHECK VALVE PRESSURE TAP FITTING WITH VALVE CORE DISTRIBUTOR TO OUTDOOR COIL STRAINER HP23 LIQUID LINE COMPONENTS REFRIGERANT FLOW IN COOLING MODE REFRIGERANT FLOW IN HEATING MOD...

Page 10: ...is not pressurized The service port cap can be removed and gauge connections can be made CAUTION The service port cap is used to seal the liquid line service valve Access to service port requires back...

Page 11: ...stem cap tighten firmly Tighten finger tight then tighten an additional 1 6 turn To Close Vapor Line Service Valve 1 Remove stem cap with an adjustable wrench 2 Using service wrench and 5 16 hex head...

Page 12: ...ULATOR 460 510 AND 650 ONLY DEFROST SWITCH S6 FILTER DRIER W INTERNAL CHECK VALVE MUFFLER LIQUID LINE FROM INDOOR COIL TO OUTDOOR COIL DISCHARGE LINE SERVICE PORT STRAINER LIQUID LINE SERVICE PORT REV...

Page 13: ...nitrogen pressure from the system correct any leaks and recheck CAUTION When using dry nitrogen a pressure reducing regulator must be used to prevent excessive pressure in gauge manifold connecting ho...

Page 14: ...Warmer Than Liquid Line HP23 261 HP23 311 HP23 411 413 CAN HP23 461 463 HP23 211 HP23 141 HP23 511 513 HP23 651 653 SUBCOOLING METHOD EXPANSION VALVE SYSTEMS AMBIENT TEMPERATURE BELOW 60 F 16 C 4 2 9...

Page 15: ...4 13 11 10 7 8 1 12 9 8 6 7 0 6 7 6 4 5 0 4 5 4 2 2 Approved matchups only HP23 410 CB CBH19 41 17 15 14 11 8 5 18 16 15 12 9 6 Condensing Temp F Warmer Than Liquid Line At Various Ambients 5 Place th...

Page 16: ...Page 16 HP23 SINGLE PHASE OPERATING SEQUENCE 1 2 3 5 6 4 7 8 9 10 11 12 13 15 16 17 18 19 20 21 22 23 24 25 27 26 1 20...

Page 17: ...K1 1 opens and compressor B1 and outdoor fan motor B4 are de energized and stop im mediately FIRST STAGE HEAT 11 Heating demand initiates at W1 in the ther mostat 12 24VAC energizes compressor contac...

Page 18: ...Page 18 HP23 THREE PHASE OPERATING SEQUENCE 1 2 3 5 6 4 7 8 9 10 11 12 13 15 14 16 17 18 19 20 21 22 23 24 25 26 1...

Page 19: ...the ther mostat 11 24VAC energizes compressor contactor K1 12 K1 1 N O closes energizing compressor and outdoor fan motor 13 Compressor B1 and outdoor fan motor B4 begin immediate operation END OF FIR...

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