Service & Parts Manual (2019, 2020, 2021, 2022)

3 PB
TABLE OF CONTENTS
INSTALLATION- 195
Leak Check, Evacuation, and Charging (Triple Evacuation)‑ 198
Checklist‑ 200
Field Settings (ESP Setting) Duct Type Only- 201
Field Settings (Indoor Unit Parameter Revision)‑ 202
Operation Test- 213
Cassette and Ducted Condensate Pump Drain Line- 213
Fresh Air Intake‑ 214
MAINTENANCE- 215
R-410A SEALED SYSTEM REPAIR- 218
Service Valves Appearance‑ 218
Pumping Down- 219
Gas Charging (After Repair)- 220
Replace 18/24k Outdoor unit Compressor and Motor‑ 221
Replace 36/ 42k Outdoor unit Compressor and Motor‑ 222
Replace 9k and 12k Duct Type unit Compressor and Motor‑ 223
Replace 18k Duct Type unit Compressor and Motor‑ 224
Replace 9k, 12k, and18k Cassette Type unit Compressor and Motor‑ 225
Replace 9k, 12k, and18k Cassette Type unit Compressor and Motor‑ 226
Replace 9k, 12k, and18k Cassette Type unit Compressor and Motor‑ 227
Replace 24k and 36k Cassette Compesdsor and Motor Type unit Compressor and Motor‑ 228
TROUBLESHOOTING- 229
Normal Malfunctions- 229
Test the jumper terminals- 230
Protection Circuit Fault Isolation- 231
Compressor Fault Isolation- 232
Indoor Fault Codes- 232
Indoor Fault Code- 234
Outdoor Fault Codes- 236
18K Outdoor Drive Fault Codes ‑ 246
24k, 36k, and 42k Outdoor Drive Fault Codes ‑ 247
Diagnosis and Solutions- 249
E36 / Blank Display‑ 260
COMPONENTS TESTING - 262
Compressor- 262
Fan Motor- 263
EEV Stepper Coil- 264
Check Refrigerant System (Outdoor) ‑ 265
Test System Flow (Outdoor) - 266
Check Fuse and Capacitor‑ 267
7k Indoor Wall Mount Printed Circuit Board ‑ 268
Ducted 9,12, and 18k Ducted Indoor Units Control Board‑ 269
Ducted 24, 36k Ducted and 9‑36k Cassette Indoor Units Control Board‑ 270
18k Outdoor Main Printed Circuit Boards‑ 271
24k Outdoor Main Printed Circuit Board‑ 273
24k Outdoor Drive Printed Circuit Board‑ 274
36k/ 42k Outdoor Main Printed Circuit Board‑ 275
36k/ 42k Outdoor Drive Printed Circuit Board‑ 276
WIRING DIAGRAMS- 277
7k Wall Units‑ 277
Ducted Indoor Units 9k, 12k, and 18k‑ 278
9k‑36k Indoor Cassette Units‑ 279
18k Outdoor Units‑ 280