3 PB
TABLE OF CONTENTS
INSTALLATION- 195
Leak Check, Evacuation, and Charging (Triple Evacuation)‑ 198
Checklist‑ 200
Operation Test- 201
Fresh Air Intake‑ 202
MAINTENANCE- 203
R-410A SEALED SYSTEM REPAIR- 206
Service Valves Appearance‑ 206
Pumping Down- 207
Gas Charging (After Repair)- 208
Replace 18/24k Outdoor unit Compressor and Motor‑ 209
Replace 36/ 42k Outdoor unit Compressor and Motor‑ 210
Replace 9k and 12k Duct Type unit Compressor and Motor‑ 211
Replace 18k Duct Type unit Compressor and Motor‑ 212
COMPONENTS TESTING - 217
Resistance Table Of Indoor Coil And Indoor Room Sensor- 217
Resistance Table Of Outdoor Compressor Temperature Sensor- 218
Compressor- 225
Fan Motor- 226
7k Indoor Wall Mount Printed Circuit Board ‑ 233
Ducted 9,12, and 18k Ducted Indoor Units Control Board‑ 234
Ducted 24, 36k Ducted and 9‑36k Cassette Indoor Units Control Board‑ 235
18k Outdoor Main Printed Circuit Boards‑ 236
24k Outdoor Main Printed Circuit Board‑ 238
24k Outdoor Drive Printed Circuit Board‑ 239
36k/ 42k Outdoor Main Printed Circuit Board‑ 240
36k/ 42k Outdoor Drive Printed Circuit Board‑ 241
Field Settings (ESP Setting) Duct Type Only- 242
Field Settings (Indoor Unit Parameter Revision)‑ 243
TROUBLESHOOTING- 254
Normal Malfunctions- 254
Test the jumper terminals- 255
Protection Circuit Fault Isolation- 256
Compressor Fault Isolation- 257
Indoor Fault Codes- 257
Indoor Fault Code- 259
Outdoor Fault Codes- 261
18K Outdoor Drive Fault Codes ‑ 271
24k, 36k, and 42k Outdoor Drive Fault Codes ‑ 272
Diagnosis and Solutions- 274
WIRING DIAGRAMS- 286
7k Wall Units‑ 286
Ducted Indoor Units 9k, 12k, and 18k‑ 287
9k‑36k Indoor Cassette Units‑ 288
18k Outdoor Units‑ 289
24k Outdoor Units‑ 290
36k Outdoor Units‑ 291
42k Outdoor Units‑ 292
PARTS CATALOG- 293
Introduction- 293
18K Outdoor Condensor‑ 294
24K Outdoor Condensor‑ 299
36K Outdoor Condensor‑ 304
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