Hisense AHM-080HCDSAA - Disassembling the Master Controller

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Hi-Therma Integra system - Indoor unit (AHS-044/060/080HCDSAA-23)

2.3.7 Disassembling the Master Controller



Please pay attention to protect the LCD display of the Master Controller when removing.



Please prevent the Master Controller from falling and damaging during operation.

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Table of Contents13
Important Notice14
General Notes14
Safety14
Applied Symbols14
Additional Information14
General Information22
Line-Up of Hi-Therma Split22
Line-Up of Hi-Therma Integra23
Line-Up of Hi-Therma Monobloc23
List of Accessories24
Summary of Operations24
General Data25
Key Parameter25
Hi-Therma Split25
Hi-Therma Integra27
Hi-Therma Monobloc28
ERP Performance Data for Space Heating30
ERP Data - Hi-Therma Split30
For Space Heating30
ERP Data - Hi-Therma Integra31
ERP Data - Hi-Therma Monobloc32
Cooling Mode Application (en 14825)33
Cooling Data- Hi-Therma Split33
Cooling Data- Hi-Therma Integra33
Cooling Data- Hi-Therma Monobloc34
Component Data35
Hi-Therma Split35
Hi-Therma Integra37
Hi-Therma Monobloc38
Safety and Control Device40
Hi-Therma Split40
Hi-Therma Integra40
Hi-Therma Monobloc41
Capacity and Selection Data42
Hi-Therma Split/Integra42
Maximum Heating Capacity Table (Kw)42
Maximum Cooling Capacity Table (Kw)45
Hi-Therma Monobloc47
Maximum Heating Capacity Table (Kw)47
Maximum Cooling Capacity Table (Kw)49
Correction Factors50
Piping Length Correction Factor50
Correction Factor Owing to Use of Glycol (Only for Hi-Therma Monobloc)52
Correction Factor Owing to Defrosting Operation53
Selection Method54
Selection Procedure54
Acoustic Characteristic Curves56
Considerations56
Sound Pressure Level58
Working Range59
Power Supply Working Range59
Temperature Working Range59
Space Heating59
Dhw60
Swimming Pool60
Space Cooling61
Hydraulic Working Range62
Hydraulic Data62
Pump Performance Curves62
General Dimensions65
Hi-Therma Split/Integra Outdoor Unit65
Dimensional Data of Hi-Therma Split/Integra Outdoor Unit65
Structure of Hi-Therma Split/Integra Outdoor Unit66
Hi-Therma Split Indoor Unit67
Dimensional Data of Hi-Therma Spit Indoor Unit67
Structure of Hi-Therma Indoor Unit68
Hi-Therma Integra Indoor Unit69
Dimensional Data of Hi-Therma Integra Indoor Unit69
Structure of Hi-Therma Integra Indoor Unit70
Hi-Therma Monobloc71
Dimensional Data of Hi-Therma Monobloc71
Structure of Hi-Therma Monobloc72
Refrigerant Cycle and Hydraulic Circuit73
Refrigerant Cycle and Hydraulic Circuit of Hi-Therma Split73
Refrigerant Cycle and Hydraulic Circuit of Hi-Therma Integra74
Refrigerant Cycle and Hydraulic Circuit of Hi-Therma Monobloc75
Installation76
Installation of Hi-Therma Split Indoor Unit76
General Information76
Safety76
Applied Symbols76
Additional Information about Safety77
Important Notice78
Information78
Minimum Floor Area Requirements78
Before Operation79
General Notes79
Factory-Supplied Indoor Unit Components80
General Dimensions81
Service Space81
Dimensional Data81
Installation of Hi-Therma Split Indoor Unit82
Main Parts (Descriptions)82
Removing the Panels82
Wall Mounting84
Piping Work86
General Notes before Performing Piping Work86
Refrigerant Piping Connection86
Water Piping Connection86
Space Heating and Dhw88
Additional Hydraulic Necessary Elements88
Requirements and Recommendations for Hydraulic Circuit89
Water Filling90
Dhw Tank Selection and Installation93
Water Control96
Electrical and Control Settings97
General Check97
Wiring98
Terminal Board Connections100
Optional Indoor Unit Wiring (Accessories)102
Setting of Dip Switches on Pcb1108
Test Run109
Checklist before Test Run109
Checklist During Test Run109
Check the Minimum Flow Rate109
Installation of Hi-Therma Integra Indoor Unit110
General Information110
Safety110
Applied Symbols110
Additional Information about Safety111
Important Notice112
Information112
Minimum Floor Area Requirements112
Before Operation113
General Notes113
Factory-Supplied Indoor Unit Components114
General Dimensions115
Service Space115
Dimensional Data115
To Handle the Unit116
Unit Installation117
Main Parts (Descriptions)117
Removing the Panels117
Piping Work120
General Notes before Performing Piping Work120
Refrigerant Piping Connection121
Water Piping Connection121
Space Heating/Cooling and Dhw124
Additional Hydraulic Necessary Elements124
REQUIREMENTS and RECOMMENDATIONS for HYDRAULIC CIRCUIT126
Water Filling127
Water Control131
Dhw Tank Selection131
Electrical and Control Settings133
General Check133
Wiring134
Terminal Board Connections136
Optional Indoor Unit Wiring (Accessories)137
Setting of Dip Switches on Pcb1143
Test Run144
Checklist before Test Run144
Checklist During Test Run144
Check the Minimum Flow Rate144
Technical Parameters145
Installation of Hi-Therma Split/Integra Outdoor Unit151
General Information151
General Notes151
General Safety151
Safety154
Applied Symbols154
Additional Information154
Important Notice156
Transportation and Handling157
Before Operation157
Line-Up of Outdoor Units157
Factory-Supplied Unit Components157
General Dimensions158
Unit Installation159
Installation Space159
Installation Place Provision161
Drain Piping162
Refrigerant Piping Work162
Piping Materials162
Piping Size163
Piping Connection164
Air-Tightness Test XIII165
Vacuum Pumping and Refrigerant Charge165
Refrigerant Charging Quantity165
Caution of the Pressure by Check Joint166
Electrical Wiring167
General Check167
Common Wiring167
Electrical Wiring Connection for Outdoor Units168
Wiring Size and Main Switch Protection169
Setting of Dip Switches171
Test Run171
Main Safety Devices172
Technical Parameters173
Installation of Hi-Therma Monobloc179
General Information179
General Notes179
General Safety179
Safety182
Applied Symbols182
Additional Information about Safety182
Important Notice183
Information183
Minimum Floor Area Requirements184
Caution of the Pressure by Check Joint185
Transportation and Handling185
Transportation185
Handling185
Before Operation186
General Dimensions186
Unit Installation187
Installation Space187
Installation Place Provision189
Drain Piping189
Water Piping190
Refrigerant Circuit191
Refrigerant Charge191
Precautions in the Event of Refrigerant Leaks191
Space Heating and Dhw191
Additional Hydraulic Necessary Elements191
Requirements and Recommendations for Hydraulic Circuit193
Water Filling195
Dhw Tank Selection and Installation197
Water Control200
Electrical and Control Settings201
General Check201
Electrical Wiring Connection for Outdoor Units202
Terminal Board Connections205
Optional Indoor Unit Wiring (Accessories)208
Wiring Size and Minimum Requirements of the Protection Devices214
Setting of Dip Switches215
Test Run216
Checklist before Test Run216
Checklist During Test Run217
Check the Minimum Flow Rate217
Main Safety Devices218
Technical Parameters219
Electrical Wiring Diagrams223
Control Function227
Basic Function Introduction227
Main Function230
Alternate Function Operation with Priority233
3Wvs Operation233
Operation Priority235
Heat Source238
Available Heat Source238
Emergency Operation238
Space Heating/Cooling239
Room Thermostat239
Room Thermo ON/OFF240
ECO Operation240
Water Cycle for Space Heating241
Set Target Outlet Water Temperature242
Second Water Temperature Control247
Thermo ON/OFF and Capacity Control249
Heating Auto ON/OFF250
Water Cycle for Space Cooling251
Set Target Outlet Water Temperature252
Second Water Temperature Control255
Thermo ON/OFF and Capacity Control257
Auto HEAT/COOL258
Hydraulic Separator258
Dhw260
DHW Setting Temperature261
DHW Operation with Heat Pump261
DHW Operation with DHW Electric Heate262
DHW Operation by Heat Pump and Heater262
DHW Anti-Legionella Protection264
DHW Boost265
DHW Recirculation Pump266
DHW Electric Heater During Emergency Operation267
Swimming Pool268
SWP Setting Temperature268
SWP Demand ON/OFF and Capacity Control268
Auxiliary Electric Heater269
PI Control Method269
Heater Operation During Space Heating270
Initial Start-Up at Low Outdoor Ambient Temperatures272
Heater Operation During SWP272
Heater Operation During Defrosting272
Boiler Combination273
PI Control Method273
Boiler Operation During Space Heating274
Boiler Operation During DHW276
Boiler Operation During SWP277
Solar Combination278
Control Function279
Solar Panels Overheat Protection279
Solar Panels Antifreezing Protection280
Water Pump Control281
Water Pump Control During Space Heating/Cooling281
WP1/WP3 Control281
WP2 Control286
Wpc1 Control287
Water Pump Control During DHW and SWP288
Hydraulic Separator Is Enabled288
Hydraulic Separator Is Disabled289
EC WP1 Speed Control290
EC WP1 Water Flow Feedback293
Anti Freezing293
Air Purge296
Seizure Protection297
Optional Functions298
Screed Drying298
Defrost by DHW and Electric Heater299
Second Outdoor Ambient Temperature299
Energy Configuration299
Smart Function300
Duty Control302
Night Shift303
Quiet Mode303
Input /Output /Auxiliary Sensors304
Input304
Output309
Auxiliary Sensors311
Test Run312
Actuator Test Run312
Unit Test Run312
Control Configuration for ou313
Control Logic313
Defrost Operation314
Function Setting316
Function Setting Item317
Change of Defrost Condition (Function Setting "Jo")318
Priority Capacity Mode for Cooling (Function Setting "Cu")318
Priority Capacity Mode for Heating (Function Setting "Hu")318
Quiet Mode319
Quiet Mode Is Enabled (Cooling Operation)319
Quiet Mode Is Enabled (Heating Operation)319
Night Shift Mode320
Night Shift Mode Is Enabled (Cooling Operation)320
Night Shift Mode Is Enabled (Heating Operation)321
Test Run322
Troubleshooting324
Initial Troubleshooting324
Checking of Electrical Wiring and Power Supply324
Checking of Rotary Switch and DIP Switch Settings324
Power Supply Failure to the Indoor Unit and the Master Controller325
Checking by Means of the 7-Segment Display326
Abnormal Operation of the Devices327
Troubleshooting Procedure331
Checking of Using 7-Segment Display331
Checking of Using 7-Segment Display(O.U.)331
Checking of Using 7-Segment Display (I.U.)342
Checking of Master Controller349
Checking of Master Controller (Hi-Therma Split)349
Checking of Controller (Hi-Therma Monobloc)351
Troubleshooting by Alarm Code354
Troubleshooting by Alarm Code (O.U.)356
Troubleshooting of Alarm Code (I.U.)383
Checking Procedure for Main Parts405
Functions of RSW; Dsws and Leds405
Functions of RSW; Dsws and Leds (O.U.)405
Functions of RSW; Dsws and Leds (IU)406
Checking of PCB and Leds408
Checking of O.U. Main PCB408
Checking of I.U.PCB1410
Checking of Electrical Coil Resistance for each Electrical Components413
Checking of Reversing Valve414
Checking of DC Fan Motor414
Servicing415
Hi-Therma Split System - Outdoor Unit (AHW-044/060/080HCDS1)415
Removing the Pipe Cover416
Removing the Front Cover and Upper Cover416
Removing the Side Cover and Side Electrical Box Cover417
Removing the Propeller Fan417
Removing the Outdoor Fan Motor418
Removing the Compressor419
Removing the High Pressure Switch and Low Pressure Switch420
Removing the 4-Way Reversing Valve and Coil421
Removing the Electronic Expansion Valve Coil421
Removing the Electrical Box422
Removing Display PCB423
Replacing O.U. Main PCB424
Hi-Therma Split System - Indoor Unit (AHM-044/060/080HCDSAA)427
Removing the Front Panel427
Opening the Electrical Box427
Hanging the Master Controller428
Disassembling the Master Controller429
Removing the Side Panel429
Removing the Water System Components430
Removing the Auxiliary Electric Heater Components430
Removing the Safety Valve and Air Purge Valve430
Removing the Water Pump431
Removing the Expansion Vessel432
Removing the Plate Heat Exchanger Assembly433
Removing the Electrical Components436
Removing the PCB1437
Removing the PCB3437
Removing the PCB4438
Removing the PCB5438
Removing the Relays (AR1~3)439
Replacement of Fuses (EF1~3, EFR, EFR1)439
Removing the Terminal Board (TB1)440
Hi-Therma Integra System - Indoor Unit (AHS-044/060/080HCDSAA-23)441
Removing the Upper Front Panel441
Removing the Lower Front Panel441
Removing the Side Panel442
Removing the Back Panel443
Opening the Electrical Box444
Hanging the Master Controller445
Disassembling the Master Controller446
Removing the Water System Components447
Removing the Auxiliary Electric Heater Components447
Removing the Safety Valve and Air Purge Valve448
Removing the Water Pump449
Removing the Expansion Vessel450
Removing the Plate Heat Exchanger Assembly451
Removing the 3-Way Reversing Valve452
Removing the Thermostat454
Resetting the Thermostat454
Removing the Thermostat455
Removing the DHW Electric Heater456
Removing the DHW Thermistors457
Installing the Electronic Anode (Optional Part)458
Hi-Therma Monobloc System (AHZ-044/080HCDS1)459
Removing the Covers460
Removing the Upper Cover460
Removing the Service Cover460
Removing the Electrical Box Cover on the Indoor Part461
Removing the462
Removing the Rear Cover462
Removing the Fan Grille464
Removing the Propeller Fan464
Removing the Fan Motor464
Removing the Refrigerant Components465
Removing the Low Pressure Switch (PSL)465
Removing the High Pressure Switch (PSH)466
Removing the Expansion Valve and Coil466
Removing the 4-Way Reversing Valve Coil467
Removing the 4-Way Reversing Valve468
Removing Cycle and Hydraulic Components469
Removing the Air Purge Valve469
Removing the Safety Valve470
Removing the Water Pump471
Removing the Pressure Sensor (Water Cycle)474
Removing the Expansion Vessel475
Removing the Compressor477
Removing the Electrical Components479
Location of Electrical Components479
Removing the Electrical Box Assembly on Outdoor Part480
Replacing O.U. Main PCB481
Removing the Electrical Box Assembly on Indoor Part484

Hisense AHM-080HCDSAA - Disassembling the Master Controller

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