Daikin FVQ71BV1B - Service Manual

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SiBE28 - 804

SkyAir

RZQ71C7V1B, RZQ100~140C7V1B,

RZQS71·100C7V1B, RZQS125·140C7V1B

R-410A

Heat Pump 50Hz

Table of Contents

Table of Contents2
Introduction7
- Safety Cautions7
- Preface11
Skyair Inverter GQI III Series12
Part 1 General Information14
Combination15
- Combination Overview15
- Combination Matrix16
External Appearance17
Model Name and Power Supply18
Part 2 Specifications20
Specifications21
- RZQ71C7, 100C7, 125C7 and 140C7 (Single Phase)21
- RZQS71C7, 100C7, 125C7 and 140C7 (Single Phase)25
Part 3 Remote Controller30
Wired Remote Controller31
- Features31
- Installation33
Wireless Remote Controller35
- Features35
Method of Operating Remote Controller37
- The INSPECTION / TEST Button37
- Maintenance Mode Setting38
- Operation of the Remote Controller's Inspection / Test Operation Button40
- Remote Controller Service Mode41
Part 4 Functional Description42
General Functionality44
- Functions of Thermistors44
- Forced Operating Mode (Emergency Operation)46
- Outdoor Unit Identification Function48
- Simulated Operation Function49
- Restart Standby50
- Automatic Restart51
- Using Conditions for Remote Controller Thermostat52
- Forced Thermostat off54
- Test Run Control55
- 4-Way Valve Control56
- Pump down Operation57
- Defrost Operation58
- Freeze Prevention Function60
- PMV Control61
- Preheating Operation Control62
- Crankcase Heater Control63
Indoor Unit Functional Concept64
- Thermostat Control64
- Drain Pump Control65
- Condensation Avoidance Control66
- Draft Avoidance Control 167
- Draft Avoidance Control 268
- Fan and Flap Operation69
- Indoor Unit Fan Control70
Outdoor Unit Functional Concept72
- Function Outline in Cooling Mode72
- Function Outline in Heating Mode73
Frequency Regulating Functions74
- Starting Frequency Control74
- Starting Control75
- General Frequency Control76
- Low Pressure Protection Control78
- High Pressure Protection Control80
- Discharge Pipe Temperature Control81
- Suction Pipe Superheat Protection Control (Heating Mode)82
- Inverter Current Protection Control83
- Protection Control by Overall Current84
- Inverter Cooling Fin Temperature Control85
- Pressure Difference Control86
- Oil Recovery Operation88
Expansion Valve Regulating Functions89
- Expansion Valve Control at Startup89
- General Expansion Valve Control90
- Discharge Pipe Temperature Protection Control91
Outdoor Unit Fan Speed Control92
Part 5 Test Operation94
Test Operation95
- Test Run Checks95
- Setting the Wireless Remote Controller96
Field Settings100
- How to Change the Field Settings with the Wired Remote Controller100
- How to Change the Field Settings with the Wireless Remote Controller102
- Overview of the Field Settings on the Indoor Units103
- Overview of the Factory Settings on the Indoor Units104
- MAIN/SUB Setting When Using Two Remote Controllers105
- Setting the Centralized Group no106
- The Field Setting Levels107
- Overview of the Field Settings on the Outdoor Units110
- Overview of the Factory Settings on the Outdoor Units110
- Existence of DIP Switch and BS Button111
- Quiet (Low Noise) Operation117
- I-Demand Function119
- Setting for Low Humidity Application121
- Defrost Start Setting126
Test Run and Operation Data127
- General Operation Data127
- Operation Range130
Part 6 Troubleshooting132
How to Handle Request for Maintenance134
- General Troubleshooting Flowchart134
Troubleshooting Based on Equipment Condition135
- Overview of General Problems135
- Equipment Does Not Operate136
- Indoor Fan Operates, but Compressor Does Not138
- Cooling/Heating Operation Starts but Stops Immediately140
- After Unit Shuts Down, It Cannot be Restarted for a While142
- Equipment Operates but Does Not Provide Cooling144
- Equipment Operates but Does Not Provide Heating146
- Equipment Discharges White Mist148
- Equipment Produces Loud Noise or Shakes149
- Equipment Discharges Dust151
- Remote Controller LCD Displays "88152
- Swing Flap Does Not Operate153
Procedure of Self-Diagnosis by Remote Controller155
- The Inspection/Test Button155
- Fault-Diagnosis by Wired Remote Controller156
- Fault-Diagnosis by Wireless Remote Controller157
- Remote Controller Display Malfunction Code and Contents161
Troubleshooting by LED Indications163
- Troubleshooting by LED on the Indoor Units163
- Troubleshooting by LED on Outdoor Unit PC Board164
Troubleshooting by Remote Controller Display / LED Display165
- Indoor Malfunctions165
- Outdoor Malfunctions166
- System Malfunctions167
- Overview of the Outdoor Safety Devices168
- Overview of the Indoor Safety Devices169
- A1" Malfunctioning Indoor PC Board170
- A3" Malfunction of Drain Water Level System171
- A6" Indoor Unit Fan Motor Lock173
- A7" Swing Flap Motor Malfunction / Lock175
- A8" Abnormal Power Supply Voltage177
- AF" Malfunctioning Drain System178
- AJ" Malfunctioning Capacity Setting180
Part 7 Appendix252
Dimensions253
- Rzq71C7, Rzqs71·100C7V1B253
- Rzq100~140C, Rzqs125·140C7V1B254
Installation and Service Space (RZQ100~140C7, RZQS125~140C7)255
- Non Stacked255
- Stacked256
- Multiple Rows256
Piping Diagrams257
- Piping Symbol257
- Pair System258
- Twin System260
- Triple System262
- Double Twin System263
- Pipe Connection Diameters264
- Re-Using Existing Field Piping265
Wiring Diagrams271
- Outdoor Unit271
Switch Box Layout273
- Rzq71C7, Rzqs71·100C7V1B273
- Rzq100~140C7, Rzqs125·140C7V1B274
PCB Layout275
- Rzq71C7, Rzqs71·100C7V1B275
- Rzq100~140C7, Rzqs125·140C7V1B276
Part 8 Removal Procedure278
Rzq71C7, Rzqs71·100C7V1B279
- Removal of Outside Panels and Related Parts279
- Removal of Propeller Fan and Fan Motor280
- Removal of Switch Box281
- Removal of PC Board Assy (1)282
- Removal of PC Board Assy (2)283
- Removal of PC Board Assy (3)284
- Removal of Low Pressure Sensor, Electronic Expansion Valve, and Others285
- Removal of Thermistor286
- Removal of Four Way Valve287
- Removal of Compressor288
Rzq100~140C7, Rzqs125·140C7V1B289
- Removal of Outside Panels289
- Removal of Propeller Fan and Fan Motor290
- Removal of Switch Box291
- Removal of PC Board292
- Removal of Pressure Sensor, Electronic Expansion Valve, and Others293
- Removal of Thermistor294
- Removal of Four Way Valve295
- Removal of Compressor296
Part 9 Precautions for New Refrigerant (R-410A)298
Precautions for New Refrigerant (R-410A)299
- Outline299
- Refrigerant Cylinders301
- Service Tools302
Index308
Drawings & Flow Charts312

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