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Table Of Contents - Fujitsu Airstage V series Service Manual

Multi air conditioning system for buildings

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Operating manual (2 pages)

Table Of Contents

Table of Contents

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Table of Contents

Service Manual1

Table Of Contents2

Checking Items Before Test Run7

Test Run Method9

Operation Check9

Test Run From Outdoor Pc Board10

Test Run From Remote Controller10

Standard Wired Remote Controller10

Standard Wireless Remote Controller10

Simple Remote Controller11

Central Remote Controller11

Test Run Control12

When The Test Run Signal Is Transmitted From Standard Wired, Wireless Remote Controller, Simple Remote Controller And Central Remote Controller12

When The Test Run Signal Is Transmitted From The Outdoor Unit12

Function Of Printed Circuit Board13

Indoor Unit Control Circuit Board14

Switch Position14

Compact Wall Mounted Type15

Outdoor Unit Control Circuit Board16

Wired, Simple Remote Controller Circuit Board17

Central Remote Controller Circuit Board18

Network Convertor Circuit Board19

Network Convertor (Utr-Ylla)20

Signal Amplifier Circuit Board21

Group Remote Controller Circuit Board22

External Switch Controller Circuit Board23

Microprocessor Function List24

Function And Setting Of Each Switch - Indoor Unit28

Auto Restart Validity / Invalidity28

Connected Outdoor Unit Series30

Draft Prevention Setting Switch (Only For Cassette Type)30

Rotary Switch Setting31

Sw6,7 Setting31

Sw8,9 Setting31

External Input And Output31

Function And Setting Of Each Switch - Indoor Unit (Compact Wall Mounted Type)32

Wireless Remote Controller Custom Code Switch33

Refrigerant Type33

Indoor Unit Address Switch33

Rotary Switch Settings34

Sw6 Setting - Indoor Unit Address Switch34

Sw7 Setting - Refrigerant Circuit Address Switch34

Sw9 Setting - Remote Controller Address Switch34

Function And Setting Of Each Switch - Outdoor Unit35

Dip Switch Setting35

Dip Sw Setting36

Silent Operation Mode (Cooling Mode Only) (Setting For Master And Slave Unit)36

Sequential Start Shift36

Outdoor Unit Capacity Switch (Setting For Each Unit. Never Change At The Site)37

Number Of Slave Unit37

Error Reset (Setting For Master And Slave Unit)37

Cooling Capacity Shift Sw38

Pipe Length Setting Sw38

System Type Of The Outdoor Unit (Setting For Master And Slave Unit)38

Indoor Unit Small Capacity Setting (Only For Master Unit)38

Rotary Switch Setting (Setting For Each Unit)39

Set The Refrigerant Circuit Address39

External Input And Output (Only For Master Unit)39

Wired, Simple Remote Controller40

Dual Remote Controller Setting40

Group Control Setting40

Model Setting40

External Input Validity / Invalidity41

External Input Select Edge / Pulse41

Filter Sign Indication On / Off41

Memory Backup Setting42

Sw42 Initial Setting Button42

Network Convertor43

Dip- Sw103 (5, 6, 7, 8) Setting The Number Of Connected Indoor Units44

Dip-Sw 107 Setting44

Dip-Sw 108 Setting44

Dip-Sw109 Setting44

Signal Amplifier45

Group Remote Controller45

Set Sw1 To On To Enable The Memory Backup45

External Switch Controller46

Delay-Time Setting46

External Switch Controller And Remote Controller, Or Dual External Switch Controllers Setting46

Operation Mode Setting47

Contact Input47

Operation Conditions47

Dip Sw5-6 Setting Forbidden48

External Input And Output - Indoor Unit49

Control Input (Operation/Stop)49

External Input And Output - Indoor Unit (Compact Wall Mounted)51

External Input And Output - Outdoor Unit53

External Input And Output - Central Remote Controller/Pc Controller54

Central Remote Controller / Pc Controller54

External Input And Output - Network Convertor56

Inverter Control58

Dc Inverter Control Method59

Inverter Block Of Outdoor Unit59

Voltage Conversion Chart59

Basic Circuit Of 3 Phase Inverter60

Pwm Control (General Consideration)60

Sinewave Inverter (For V Series)60

Rectangularwave Inverter60

Circuit Description61

Current Transformer61

Igbt (Insulated Gate Bipolar Transistor)61

Power Relay & Resistor61

Coil (Reactor)61

Smoothing Capacitor61

Outdoor Unit Operation Control62

Input / Output List63

Compressor Operation64

Operation / Stop Condition64

Capacity Control64

Target Low-Pressure And High-Pressure Control64

Frequency Range Of Start,Stop,And Operation (For Dc Inverter Scroll Compressor)65

Oil Return Control65

Compressor Sequence Operation66

Cooling Operation67

Heating Operation67

Expansion Valve Control68

Special Operation68

Snow Falling Protection Fan Mode68

Oil Recovery Operation68

Oil Balance Operation69

Pre-Heat Operation70

Defrost Operation Control71

Protective Function List72

Indoor Unit Operation74

Fan Control Info75

Fan Speed Setting75

"Auto" Position75

Dry Operation75

Master Control76

Operation Mode Control76

Auto Changeover76

"Cool" Position77

"Heat" Position77

"Fan" Position77

Louver Control78

Vertical Air Direction Adjustment78

Horizontal Air Direction Adjustment79

Swing Operation79

About Vertical Airflow Swing Operation80

To Select Horizontal Airflow Swing Operation80

To Stop Horizontal Airflow Swing Operation80

About Horizontal Airflow Swing Operation80

Electronic Expansion Valve Control81

Drain Pump Operation81

Icing Protection Control82

Timer Control83

Wireless Remote Controller83

Program Timer83

Group Remote Controller Info85

Wired Remote Controller87

To Start/Cancel The Weekly Timer Operation88

To Set The Day Off (For A Holiday)88

To Set The Temperature Set Back Timer89

To Start/ Cancel The Temperature Set Back Timer Operation89

Trouble Shooting90

Normal Operation Troubleshooting91

Indoor Unit Display Troubleshooting91

Outdoor Unit Display Troubleshooting92

Operation Not Trouble93

Abnormal Operation Troubleshooting94

Indoor Unit Display94

Error Indication Flashing Pattern94

Remote Controller Troubleshooting95

Outdoor Unit Display96

Trouble Level Of System97

System Condition When Outdoor Unit Error Is Occurred97

How To Trouble Shoot From The Symptom98

Troubleshooting 1 - Indoor Unit Error Method: Model Information Error99

Trouble Shooting With Error Code (Indoor Unit)99

Troubleshooting 2 - Indoor Unit Error Method: Power Frequency Abnormal100

Troubleshooting 3 - Indoor Unit Error Method: Eeprom Access Abnormal101

Troubleshooting 4 - Indoor Unit Error Method: Indoor Temperature Sensor Error102

Troubleshooting 5 - Indoor Unit Error Method: Heat Exchanger Inlet Sensor Error103

Troubleshooting 6 - Indoor Unit Error Method: Heat Exchanger Middle Sensor Error104

Troubleshooting 7 - Indoor Unit Error Method: Water Drain Abnormal105

Troubleshooting 8 - Indoor Unit Error Method: Indoor Unit Fan Motor Abnormal106

Troubleshooting 9 - Indoor Unit Error Method: Standard Wired Remote Error107

Troubleshooting 10 - Indoor Unit Error Method: Standard Wired Token Error107

Troubleshooting 11 - Indoor Unit Error Method: Communication Error Between Controller Pcb And Transmission Pcb108

Troubleshooting 12 - Indoor Unit Error Method: Network Communication Error109

Troubleshooting 12-A - Indoor Unit Error Method: Indoor Unit Number Shortage Error110

Troubleshooting 13 - Outdoor Unit Error Method: Compressor 1 Abnormal (Inverter Compressor)111

Trouble Shooting With Error Code (Outdoor Unit)111

Troubleshooting 13 - Outdoor Unit Error Method: Compressor 1 Abnormal (Constant Speed)112

Troubleshooting 14 - Outdoor Unit Error Method: Compressor 2 Abnormal (Constant Speed)114

Troubleshooting 15 - Outdoor Unit Error Method: Compressor 3 Abnormal (Constant Speed)116

Troubleshooting 16 - Outdoor Unit Error Method: Discharge Temperature 1 Error118

Troubleshooting 17 - Outdoor Unit Error Method: Discharge Temperature 2 Error119

Troubleshooting 18 - Outdoor Unit Error Method: Discharge Temperature 3 Error120

Troubleshooting 19 - Outdoor Unit Error Method: High Pressure Error121

Troubleshooting 20 - Outdoor Unit Error Method: Low Pressure Error122

Troubleshooting 21 - Outdoor Unit Error Method: Pump Down Error123

Troubleshooting 22 - Outdoor Unit Error Method: Discharge Temp. Sensor 1 Error124

Troubleshooting 23 - Outdoor Unit Error Method: Discharge Temp. Sensor 2 Error125

Troubleshooting 24 - Outdoor Unit Error Method: Discharge Temp. Sensor 3 Error126

Troubleshooting 25 - Outdoor Unit Error Method: Heat Ex. Liquid Temp. Sensor Error127

Troubleshooting 26 - Outdoor Unit Error Method: Rcv Liquid Surface Sensor 1 (Lower Limit) Error128

Troubleshooting 27 - Outdoor Unit Error Method: Rcv Liquid Surface Sensor 2 (Middle Limit) Error129

Troubleshooting 28 - Outdoor Unit Error Method: Rcv Liquid Surface Sensor 3 (Higher Limit) Error130

Troubleshooting 29-1 - Outdoor Unit Error Method: Sc Heat Exchanger Outlet Temp Sensor Error131

Troubleshooting 30 - Outdoor Unit Error Method: Liquid Pipe Temp. Sensor 1 Error132

Troubleshooting 31 - Outdoor Unit Error Method: Liquid Pipe Temp. Sensor 2 Error133

Troubleshooting 32 - Outdoor Unit Error Method: Suction Gas Temp. Sensor Error134

Troubleshooting 33 - Outdoor Unit Error Method: Outdoor Temperature Sensor Error135

Troubleshooting 34 - Outdoor Unit Error Method: Discharge Pressure Sensor Error136

Troubleshooting 35 - Outdoor Unit Error Method: Suction Pressure Sensor Error136

Troubleshooting 36 - Outdoor Unit Error Method: Current Sensor Error (Only For Master Unit)137

Troubleshooting 37 - Outdoor Unit Error Method: Reverse Phase/Missing Phase Error138

Troubleshooting 38 - Outdoor Unit Error Method: Inverter Error (Only For Main Unit)139

Troubleshooting 39 - Outdoor Unit Error Method: Eeprom Access Error140

Troubleshooting 40 - Outdoor Unit Error Method: Inverter Start-Up Current Error (Only For Main Unit)141

Troubleshooting 41 - Outdoor Unit Error Method: Inverter Normal Current Error (Only For Main Unit)142

Troubleshooting 42 - Outdoor Unit Error Method: Inverter Communication Error (Only For Main Unit)143

Troubleshooting 43 - Outdoor Unit Error Method: Parallel Communication Error144

Troubleshooting 44 - Outdoor Unit Error Method: Communication Error Between Outdoor Units145

Troubleshooting 45 - Outdoor Unit Error Method: Network Communication Error (Only For Main Unit)146

Troubleshooting 46 - Outdoor Unit Error Method: Main/Slave Unit Setting Error (Only For Slave Unit)147

Troubleshooting 47 - Outdoor Unit Error Method: Slave Unit Error (Only For Main Unit)147

Troubleshooting 48 - Outdoor Unit Error Method: Initial Setting Error148

Troubleshooting 49 - Outdoor Unit Error Method: 4-Way Valve Error149

Troubleshooting 50 - Outdoor Unit Error Method: All Compressors Abnormal Of 1 Unit150

Troubleshooting 51: Indoor Unit - No Power151

Trouble Shooting With No Error Code151

Troubleshooting 52: Outdoor Unit - No Power152

Troubleshooting 53: No Operation (Power Is On)153

Troubleshooting 54: No Cooling Or No Heating154

Troubleshooting 55: Abnormal Noise155

Troubleshooting 56: Water Leaking155

Trouble Shooting 57 - Error Contents: Power Supply Error156

Trouble Shooting 58 - Error Contents: The Abnormality In Connection Of Remote Controller Cable156

Trouble Shooting For Optional Parts156

Trouble Shooting 60 - Error Contents: Transmission Error157

Trouble Shooting 60 - Error Contents: Switch Operation Error157

Trouble Shooting 61 - Error Contents: Power Supply Error158

Trouble Shooting 62 - Error Contents: Communication Error158

Troubleshooting 63 - Error Contents: Address Setting Error159

Troubleshooting 64 - Error Contents: Parallel Communication Error B159

Troubleshooting 65 - Error Contents: Parallel Communication Error A159

Troubleshooting 66 - Error Contents: Communication Error B160

Troubleshooting 67 - Error Contents: Communication Error A160

Troubleshooting 69 - Error Contents: Pcb Error 2161

Troubleshooting 70 - Error Contents: Communication Error With Group Remote Controller162

Troubleshooting 71 - Error Contents: Communication Error With Vrf System163

Troubleshooting 72 - Error Contents: Software Error164

Troubleshooting 73 - Error Contents: Pcb Error 1165

Troubleshooting 74 - Error Contents: Pcb Error 2165

Troubleshooting 75 - Error Contents: Communication Error With Standard Remote Controller166

Troubleshooting 76 - Error Contents: Communication Error With Indoor Unit167

Troubleshooting 77 - Error Contents: Communication Error With Vrf System168

Troubleshooting 78 - Error Contents: Software Error169

Troubleshooting 79 - Error Contents: Indoor/Outdoor Unit Error169

Troubleshooting 80 - Error Contents: Pcb Error170

Troubleshooting 81 - Error Contents: Connection Error171

Troubleshooting 82 - Error Contents: Address Setting Error171

Troubleshooting 83 - Error Contents: System Error172

Troubleshooting 84 - Error Contents: Transmission Error172

Troubleshooting 85 - Error Contents: Unit Not Detected173

Service Information174

Cooling Backup Operation174

Backup Operation When Compressor Of The Slave Unit 1 Is Defective175

Heating Backup Operation176

Backup Operation When Compressor Of The Master Unit Is Defective176

Backup Operation When The Compressor Of The Slave Unit 1 Is Defective177

Work Procedure After The Backup Operation178

Refrigerant Shortage At The Backup Operation178

Refrigerant Charging After The Compressor Replacement178

Service Parts Information179

Diagnosis Method Of Compressor179

Constant Speed Compressor180

Inverter Compressor181

Inverter Pcb, Noise Filter Pcb182

Indoor Unit Electronic Expansion Valve (Eev)183

Indoor Unit Electronic Expansion Valve (Eev1)184

Indoor Unit Electronic Expansion Valve (Eev2)185

Outdoor Unit Solenoid Valve (Sv1, Sv2, Sv3, Sv6, Sv7, Sv8, Sv8-2, Sv8-3)186

Protection Function186

Outdoor Unit Solenoid Valve (Sv4,Sv5)187

Normal Operation187

Indoor Unit Fan Motor189

Check Point : Abya12 / 14Latf189

Check Point : Abya18Latf189

Check Point : Abya24Latf189

Check Point : Abya30 / 36 / 45 / 54Latf190

Check Point : Auxb07 / 09Latf190

Check Point : Auxb12 / 14Latf190

Check Point : Auxb18Latf191

Check Point : Auya20 / 25 / 30Ljatf191

Check Point : Auya36 / 45 / 54Latf191

Check Point : Arxb07 / 09Lalf192

Check Point : Arxb12 /14Lalf192

Check Point : Arxb18Lalf192

Check Point : Arxb25 / 30Latf193

Check Point : Arxb36Latf, Arxa25 / 30Latf193

Check Point : Arxb45Latf193

Check Point : Arxa36 / 45Latf194

Check Point : Arxc36Latf194

Check Point : Arxc45 / 60Latf194

Check Point : Arxc90Latf195

Check Point : Asya18 / 24 / 30Latf195

Outdoor Unit Fan Motor196

Check Point : Aj*126L / Aj*126U196

Check Point : Aj*A90/72L / Aj*A90/72U196

Resistor, Cement197

Diode Bridge (Mounted On Transistor Pcb)198

Appending Data (Unit)199

Refrigerant Pipe System Diagram - Models: Aj *A72Lbtf ,Aj*A90Lbtf ,Aj*A72Ubtf , Aj *A90Ubtf200

Refrigerant Pipe System Diagram - Models: Aj *126Lbtf , Aj *126Ubtf202

Characteristics Of Sensors204

Pressure Sensor204

Check Point Of Replacing Pressure Sensor204

Thermistor Resistance Values (Outdoor Unit Side)205

Thermistor Resistance Values (Indoor Unit Side)206

Wiring Diagram207

Compact Cassette Type Wiring Diagram207

Compact Duct Type Wiring Diagram210

Low Static Pressure Duct Type Wiring Diagram211

Duct Type Wiring Diagram212

High Static Pressure Duct Type Wiring Diagram213

Floor/Ceiling Type Wiring Diagram215

Ceiling Type Wiring Diagram216

Compact Wall Mounted Type (Comfort Model) Wiring Diagram217

Wall Mounted Type Wiring Diagram218

Ceiling Wall Type Wiring Diagram219

Outdoor Unit Wiring Diagram220

Outdoor Internal Layout224

Control Box (Inverter) Layout (For Aj*126Lbtf/ Aj*A90Lbtf/ Aj*A72Lbtf)227

Control Box Layout (For Aj*126Latf)227

Control Box Layout (For Aj*126Ubtf)228

Control Box Layout (For Aj*A90Ubtf/ Aj*A72Ubtf)228

Model Designation229

Disassembly Illustration And Parts List230

Outdoor Unit Exploded View - Model: Aj*126Lbtf231

Outdoor Unit Exploded View - Model: Aj*126Ubtf237

Outdoor Unit Exploded View - Model: Aj*A90Lbtf, Aj*A72Lbtf242

Outdoor Unit Exploded View - Model: Aj*A90Ubtf, Aj*A72Ubtf248

Indoor Unit Exploded View - Models: Auxb07, Auxb09, Auxb12, Auxb14, Auxb18253

Indoor Unit Exploded View - Models: Utg-Ud*D-W257

Indoor Unit Exploded View - Models: Au*A20, Au*A25, Au*A30258

Indoor Unit Exploded View - Models: Au*A36, Au*A45, Au*A54263

Indoor Unit Exploded View - Models: Arxb07, Arxb09268

Indoor Unit Exploded View - Models: Arxb12, Arxb14, Arxb18270

Indoor Unit Exploded View - Models: Arxb07, Arxb09, Arxb12, Arxb14, Arxb18272

Indoor Unit Exploded View - Models: Arxb25, Arxb30, Arxb36, Arxb45, Arxa25, Arxa30, Arxa36, Arxa45273

Indoor Unit Exploded View - Models: Arxc36, Arxc45, Arxc60276

Indoor Unit Exploded View - Models: Arxc45, Arxc60277

Indoor Unit Exploded View - Models: Arxc90280

Indoor Unit Exploded View - Models: Ab*A12, Ab*A14, Ab*A18, Ab*A24284

Indoor Unit Exploded View - Models: Ab*A30, Ab*A36, Ab*A45, Ab*A54291

Indoor Unit Exploded View - Models: Ab*A30/ Ab*A36, Ab*A45, Ab*A54293

Indoor Unit Exploded View - Models: As*E07, As*E09, As*E12, As*E14297

Indoor Unit Exploded View - Models: As*A18, As*A24, As*A30300

Indoor Unit Exploded View - Models: As*A18, As*A24303

Indoor Unit Exploded View - Models: Aw*A07, Aw*A09, Aw*A12, Aw*A14, Aw*A18, Aw*A24, Aw*A30305

Indoor Unit Exploded View - Models: Aw*A07, Aw*A09309

Standard Accessories - Models: Auxb07, Auxb09, Auxb12, Auxb14, Auxb18311

Standard Accessories - Models: Utg-Ud*D-W311

Standard Accessories - Models: Au*A20, Au*A25, Au*A30, Au*A36, Au*A45, Au*A54312

Standard Accessories - Models: Arxb07, Arxb09, Arxb12, Arxb14, Arxb18313

Standard Accessories - Models: Arxb25, Arxb30, Arxb36, Arxb45, Arxa25, Arxa30, Arxa36, Arxa45314

Standard Accessories - Models: Arxc36, Arxc45, Arxc60315

Standard Accessories - Models: Arxc90316

Standard Accessories - Models: Ab*A12, Ab*A14, Ab*A18, Ab*A24317

Standard Accessories - Models: Ab*A30, Ab*A36, Ab*A45, Ab*A54318

Standard Accessories - Models: As*E07, As*E09, As*E12, As*E14319

Standard Accessories - Models: As*A18, As*A24, As*A30320

Standard Accessories - Models: Aw*A07, Aw*A09, Aw*A12, Aw*A14, Aw*A18, Aw*A24, Aw*A30321

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Troubleshooting

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