Daikin RY50G User Manual

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Service

Manual

Si-71A

Skyair R(Y)K Series

l

Addition of FUY, FVY-L, FAY-FA,

FHYC140KVE Models

R71, 100KVAL, R125KTAL Models

[Applied Models]

l

Skyair : Cooling Only

l

Skyair : Heat Pump

Table of Contents

Table of Contents3
Introduction8
- Safety Cautions8
New Models Functions13
- Cooling Only and Heat Pump13
Present Model's Functions15
- Cooling Only and Heat Pump15
Wired Remote Controller21
Wireless Remote Controller23
Wireless Remote Controller25
Method of Field Set (Reset after Maintenance Inspection/Repair)29
- Explanation29
- Field Setting30
- Initial Setting Contents32
- Local Setting Mode no33
- Detailed Explanation of Setting Modes35
- No. of Connected Twin System Indoor Units35
- Air Flow Direction Setting36
- Filter Sign Setting36
- Fan Speed off When Thermostat Is off38
- Centralized Group No. Setting40
Settings Concerning Maintenance41
- Indoor Unit PCB41
- Outdoor Unit Switches / Setting Jumper51
Existence of DIP Switch, Jumper and BS53
- Reference Table53
- Emergency Operation54
- Maintenance Mode Setting55
Function Outline57
- Indoor Unit57
- Fh(Y)C, Fh(Y), Fay, Fuy57
- Outdoor Unit59
Operation Flowchart (RY71 - 140K)60
- Cooling/Program Dry Operation60
- Heating62
Electric Function Parts64
- Indoor Unit64
- Outdoor Unit67
Thermistor Temperature and Resistance Conversion Table72
- Table72
Function Details73
- Indoor Unit73
- Outdoor Unit76
- Way Valve Control76
- Operation, Stop and Thermostat Control76
- Hps/Lps Detection Function77
- Electronic Expansion Valve Control77
- Abnormally High Discharge Pipe Temperature77
- Freeze Prevention Control79
- Solenoid Valve Control in Cooling Operation80
- Fan Start Control in Heating Operation81
Maintenance Inspections88
- Optimal Operation Condition88
How to Handle Request for Maintenance91
- Flow Chart91
Troubleshooting Based on Equipment Condition92
- Equipment Does Not Operate93
- Fan Operates, but Compressor Does Not94
- Cooling/Heating Operation Starts but Stops Immediately95
- After Equipment Shuts Down, It Cannot be Restarted for a While96
- Equipment Operates but Does Not Provide Cooling97
- Equipment Operates but Does Not Provide Heating98
- Equipment Discharges White Mist99
- Equipment Produces Loud Noise or Shakes100
- Equipment Discharges Dust101
- Remote Controller LCD Displays "88102
Procedure of Self-Diagnosis by Remote Controller103
- The INSPECTION/TEST Button103
- Self-Diagnosis by Wired Remote Controller104
- Fault Diagnosis by Wireless Remote Controller105
- Remote Controller Display Malfunction Code and Contents107
Procedure of Self-Diagnosis by LED108
- Troubleshooting by LED on the Indoor Unit's108
- Troubleshooting by LED on the Outdoor Unit's PC Board108
Troubleshooting by Remote Controller Display / LED Display109
- Explanation for Symbols109
- Malfunction Code and LED Display Table110
- Failure of Indoor Unit PC Board112
- Malfunction of Drain Water Level System (Float Type)113
- Indoor Unit Fan Motor Lock114
- Swing Flap Motor Malfunction / Lock115
- Failure of Capacity Setting116
- Malfunction of Heat Exchange Temperature Sensor System117
- Malfunction of Suction Air Temperature Sensor System118
- Actuation of Safety Device119
- High Pressure System (HPS) Malfunction120
- Low Pressure System (LPS) Malfunction121
- Malfunction of Electronic Expansion Valve122
- Discharge Pipe Temperature Malfunction123
- Malfunction of High Pressure Switch124
- Malfunction of Outdoor Temperature Sensor System125
- Malfunction of Discharge Pipe Temperature Sensor System126
- Malfunction of Heat Exchanger Temperature Sensor System127
- Lack of Gas Malfunction128
- Reverse Phase129
- Malfunction of Transmission (between Indoor and Outdoor Unit)130
- Malfunction of Transmission (between Indoor Unit and Remote Controller)132
- Transmission Error between Main Remote Controller and Sub Remote Controller133
- Failure of Field Setting Switch134
For FHYC71K138
- Removal of Switch Box Cover138
- Removal of Fan Motor139
- Removal of Suction Grille140
- Removal of Air Filter141
- Removal of Decoration Cover142
- Removal of Decoration Panel143
- Removal of Horizontal Vane144
- Removal of Swing Motor146
- Removal of Switch Box Cover148
- Removal of Fan Motor149
- Removal of Drain Pan150
- Removal of Drain Pump and Drain Hose151
For FHY71F153
- Removal of Air Filter and Suction Grille153
- Removal of Electrical Parts and PC Boards154
- Removal of Horizontal Blade156
- Removal of Fan Rotor an Motor157
- Removal of Fan Bearing159
- Removal of Bottom Panel and Drain Pan160
- Removal of Swing Motor163
For FUY71/100/125FJ164
- Removal of Air Filter164
- Removal of Suction Grille165
- Removal of Fan166
- Removal of Fan Motor168
- Removal of Drain Pan169
- Removal of Drain Pump171
- Removal of Swing Motor172
- Removal of Air Flow Control Blade173
For FAY71F (A)174
- Removal of Air Filter174
- Removal of Slide Panel, Operation Display Cover, and Front Grille175
- Removal of Electrical Parts Box176
- Removal of PC Board177
- Removal of Swing Louvre Unit178
- Removal of Fan Motor179
- Removal of Drain Pan180
- Removal of Heat Exchanger182
- Removal of Fan Rotor183
For FVY71L~125L184
- Removal of Suction Grille and Air Filter184
- Removal of Electric Parts and Remote Controller186
- Removal of Fan Rotor and Fan Motor188
- Removal of Swing Motor189
- Removal of Heat Exchanger190
For R(Y)71K191
- Removal of External Casing191
- Removal of Outdoor Unit Fan and Fan Motor192
- Removal of Outdoor Unit PC Board194
- Removal of Electrical Parts Box195
- Removal of Electronic Expansion Valve and Solenoid Valve197
- Removal of 4-Way Valve and Coil198
- Removal of Compressor199
3Duw#: $Sshqgl202
Piping Diagrams203
Wiring Diagram214
- Indoor Unit214
- Outdoor Units (50Hz)227
- Outdoor Units (60Hz)231
- Outdoor Unit (Heat Pump)234

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Daikin RY50G Specifications

General

Brand	Daikin
Model	RY50G
Category	Air Conditioner
Language	English

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