Specifications
Si38-606
ii Table of Contents
4.5 STD Compressor Overload Protection...................................................59
4.6 Crankcase Heater Control......................................................................59
5. Other Control.........................................................................................60
5.1 Emergency Operation ............................................................................60
5.2 Demand Operation .................................................................................61
6. Outline of Control (Indoor Unit) .............................................................62
6.1 Drain Pump Control................................................................................62
6.2 Louver Control for Preventing Ceiling Dirt..............................................64
6.3 Thermostat Sensor in Remote Controller...............................................65
6.4 Freeze Prevention ..................................................................................67
Part 5 Test Operation ................................................................. 69
1. Test Operation ......................................................................................70
1.1 Procedure and Outline ...........................................................................70
1.2 Operation when Power is Turned On .....................................................73
2. Outdoor Unit PC Board Layout .............................................................74
3. Field Setting ..........................................................................................75
3.1 Field Setting from Remote Controller .....................................................75
3.2 Field Setting from Outdoor Unit..............................................................87
Part 6 Troubleshooting .............................................................103
1. Troubleshooting by Remote Controller ...............................................105
1.1 The INSPECTION / TEST Button.........................................................105
1.2 Self-diagnosis by Wired Remote Controller .........................................106
1.3 Self-diagnosis by Wireless Remote Controller .....................................107
1.4 Operation of the Remote Controller’s Inspection /
Test Operation Button ..........................................................................110
1.5 Remote Controller Service Mode .........................................................111
1.6 Remote Controller Self-Diagnosis Function .........................................113
2. Troubleshooting by Indication on the Remote Controller ....................118
2.1 “A0” Indoor Unit: Error of External Protection Device ...........................118
2.2 “A1” Indoor Unit: PC Board Defect.........................................................119
2.3 “A3” Indoor Unit: Malfunction of Drain Level Control System
(S1L, 33H) ............................................................................................120
2.4 “A6” Indoor Unit: Fan Motor (M1F) Lock, Overload...............................122
2.5 “A7” Indoor Unit: Malfunction of Swing Flap Motor (MA) .......................123
2.6 “A9” Indoor Unit: Malfunction of Moving Part of
Electronic Expansion Valve (20E) ........................................................125
2.7 “AF” Indoor Unit: Drain Level above Limit..............................................127
2.8 “AJ” Indoor Unit: Malfunction of Capacity Determination Device ..........128
2.9 “C4” Indoor Unit: Malfunction of Thermistor (R2T)
for Heat Exchanger ..............................................................................129
2.10 “C5” Indoor Unit: Malfunction of Thermistor (R3T) for Gas Pipes..........130
2.11 “C9” Indoor Unit: Malfunction of Thermistor (R1T) for Suction Air.........131
2.12 “CJ” Indoor Unit: Malfunction of Thermostat Sensor in
Remote Controller ................................................................................132
2.13 “E1” Outdoor Unit: PC Board Defect ......................................................133
2.14 “E3” Outdoor Unit: Actuation of High Pressure Switch ..........................134
2.15 “E4” Outdoor Unit: Actuation of Low Pressure Sensor ..........................135
2.16 “E5” Compressor Motor Lock ................................................................136