Specifications

SiBE28-805
iv Table of Contents
3.46 “U9” Indoor Unit: Malfunction of Transmission Between
Indoor and Outdoor Units in the Same System....................................202
3.47 “UA” Improper Combination of Indoor and Outdoor Units,
Indoor Units and Remote Controller.....................................................203
3.48 “UC” Address Duplication of Centralized Controller...............................205
3.49 “UE” Malfunction of Transmission Between
Centralized Controller and Indoor Unit .................................................206
3.50 “UF” System is not Set yet.....................................................................209
3.51 “UH” Malfunction of System,
Refrigerant System Address Undefined...............................................210
4. Troubleshooting (OP: Central Remote Controller) ..............................212
4.1 “M1” PC Board Defect ...........................................................................212
4.2 “M8” Malfunction of Transmission Between Optional Controllers for
Centralized Control...............................................................................213
4.3 “MA” Improper Combination of Optional Controllers for
Centralized Control...............................................................................215
4.4 “MC” Address Duplication, Improper Setting .........................................217
5. Troubleshooting (OP: Unified ON/OFF Controller) .............................220
5.1 Operation Lamp Blinks .........................................................................220
5.2 Display “Under Centralized Control” Blinks (Repeats Single Blink) .....222
5.3 Display “Under Centralized Control” Blinks (Repeats Double Blink) ....225
Part 7 Appendix......................................................................... 229
1. Piping Diagrams..................................................................................230
1.1 Outdoor Unit .........................................................................................230
1.2 Indoor Unit............................................................................................232
2. Wiring Diagrams for Reference...........................................................233
2.1 Outdoor Unit .........................................................................................233
2.2 Field Wiring ..........................................................................................235
2.3 Indoor Unit............................................................................................236
3. List of Electrical and Functional Parts .................................................239
3.1 Outdoor Unit .........................................................................................239
3.2 Indoor Side ...........................................................................................240
4. Option List ...........................................................................................241
4.1 Option List of Controllers......................................................................241
4.2 Option Lists (Outdoor Unit)...................................................................243
5. Example of connection (R-410A Type) ...............................................245
6. Thermistor Resistance / Temperature Characteristics........................247
7. Pressure Sensor .................................................................................249
8. Method of Checking the Inverter’s Power Transistors and
Diode Modules ....................................................................................250
8.1 Method of Checking the Inverter’s Power Transistors and
Diode Modules .....................................................................................250
Part 8 Precautions for New Refrigerant (R-410A) .................... 253
1. Precautions for New Refrigerant (R-410A) .........................................254
1.1 Outline ..................................................................................................254
1.2 Refrigerant Cylinders............................................................................256
1.3 Service Tools........................................................................................257