Hisense AHM-080HCDSAA - Page 19

XVII
2.1.1 Removing the pipe cover 395
2.1.2 Removing the front cover and upper cover 395
2.1.3 Removing the Side cover and Side Electrical box cover 396
2.1.4 Removing the Propeller fan 396
2.1.5 Removing the outdoor fan motor 397
2.1.6 Removing the compressor 398
2.1.7 Removing the high pressure switch and low pressure switch 399
2.1.8 Removing the 4-way reversing valve and coil 400
2.1.9 Removing the electronic expansion valve coil 400
2.1.10 Removing the electrical box 401
2.1.11 Removing Display PCB 402
2.1.12 Replacing O.U. main PCB 403
2.2 Hi-Therma Split system - Indoor unit (AHM-044/060/080HCDSAA) 406
2.2.1 Removing the front panel 406
2.2.2 Opening the electrical box 406
2.2.3 Hanging the master controller 407
2.2.4 Disassembling the Master Controller 408
2.2.5 Removing the side panel 408
2.2.6 Removing the water system components 409
2.2.6.1 Removing the Auxiliary Electric Heater components 409
2.2.6.2 Removing the Safety Valve and Air Purge Valve 409
2.2.6.3 Removing the Water Pump 410
2.2.6.4 Removing the Expansion Vessel 411
2.2.6.5 Removing the plate heat exchanger assembly 412
2.2.7 Removing the Electrical Components 415
2.2.7.1 Removing the PCB1 416
2.2.7.2 Removing the PCB3 416
2.2.7.3 Removing the PCB4 417
2.2.7.4 Removing the PCB5 417
2.2.7.5 Removing the relays (AR1~3) 418
2.2.7.6 Replacement of fuses (EF1~3, EFR, EFR1) 418
2.2.7.7 Removing the terminal board (TB1) 419
2.3 Hi-Therma Integra system - Indoor unit (AHS-044/060/080HCDSAA-23) 420
2.3.1 Removing the upper front panel 420
2.3.2 Removing the lower front panel 420
2.3.3 Removing the side panel 421
2.3.4 Removing the back panel 422
2.3.5 Opening the electrical box 423
2.3.6 Hanging the master controller 424
2.3.7 Disassembling the Master Controller 425
2.3.8 Removing the water system components 426
2.3.8.1 Removing the Auxiliary Electric Heater components 426
2.3.8.2 Removing the Safety Valve and Air Purge Valve 427
2.3.8.3 Removing the Water Pump 428
2.3.8.4 Removing the Expansion Vessel 429
2.3.8.5 Removing the plate heat exchanger assembly 430
2.3.8.6 Removing the 3-Way Reversing Valve 431
2.3.9 Removing the Thermostat 433
2.3.9.1 Resetting the Thermostat
433
2.3.9.2 Removing the Thermostat
434
2.3.10 Removing the DHW Electric Heater 435
2.3.11 Removing the DHW Thermistors 436
2.3.12 Installing the Electronic Anode (Optional Part) 437
2.4 Hi-Therma Monobloc System (AHZ-044/080HCDS1) 438
2.4.1 Removing the Covers 439
2.4.1.1 Removing the Upper cover 439
2.4.1.2 Removing the Service Cover 439
2.4.1.3 Removing the Electrical Box Cover on the Indoor Part 440
2.4.1.4 Removing the Front Cover 441
2.4.1.5 Removing the Rear Cover 441
2.4.1.6 Removing the Valve Cover 442