Specifications
Table Of Contents
- Cover
- Table of Contents
- Part 1 General Information
- Part 2 Specifications
- Part 3 Refrigerant Circuit
- Part 4 Function
- Part 5 Test Operation
- Part 6 Troubleshooting
- Part 7 Appendix
- 1. Piping Diagrams
- 2. Wiring Diagrams for Reference
- 3. List of Electrical and Functional Parts
- 4. Option List
- 5. Piping Installation Point
- 6. Example of connection (R-410A Type)
- 7. Thermistor Resistance / Temperature Characteristics
- 8. Pressure Sensor
- 9. Method of Checking the Inverter’s Power Transistors and Diode Modules
- Part 8 Precautions for New Refrigerant (R-410A)
- Index
- Drawings & Flow Charts
Si34-704
iv Table of Contents
3.41 “PJ” Outdoor Unit: Faulty Field Setting after Replacing Main PC Board
or Faulty Combination of PC Board......................................................263
3.42 “UO” Outdoor Unit: Gas Shortage Alert .................................................264
3.43 “U1” Reverse Phase, Open Phase.........................................................266
3.44 “U2” Outdoor Unit: Power Supply Insufficient or
Instantaneous Failure...........................................................................267
3.45 “U3” Outdoor Unit: Check Operation not Executed ...............................270
3.46 “U4” Malfunction of Transmission between Indoor Units.......................271
3.47 “U5” Indoor Unit: Malfunction of Transmission between
Remote Controller and Indoor Unit.......................................................274
3.48 “U7” Outdoor Unit: Transmission Failure (Across Outdoor Units) .........275
3.49 “U8” Indoor Unit: Malfunction of Transmission between
Main and Sub Remote Controllers .......................................................281
3.50 “U9” Indoor Unit: Malfunction of Transmission between Indoor and
Outdoor Units in the Same System ......................................................282
3.51 “UA” Improper Combination of Indoor and Outdoor Units,
Indoor Units and Remote Controller.....................................................283
3.52 “UC” Address Duplication of Centralized Controller...............................286
3.53 “UE” Malfunction of Transmission between Centralized Controller and
Indoor Unit............................................................................................287
3.54 “UF” System is not Set yet .....................................................................290
3.55 “UH” Malfunction of System, Refrigerant System
Address Undefined...............................................................................291
4. Troubleshooting (OP: Central Remote Controller) ..............................293
4.1 “M1” PC Board Defect ............................................................................293
4.2 “M8” Malfunction of Transmission between Optional Controllers
for Centralized Control .........................................................................294
4.3 “MA” Improper Combination of Optional Controllers for
Centralized Control...............................................................................295
4.4 “MC” Address Duplication, Improper Setting ..........................................297
5. Troubleshooting (OP: Unified ON/OFF Controller) .............................298
5.1 Operation Lamp Blinks .........................................................................298
5.2 Display “Under Centralized Control” Blinks
(Repeats Single Blink)..........................................................................300
5.3 Display “Under Centralized Control” Blinks
(Repeats Double Blink) ........................................................................303
Part 7 Appendix......................................................................... 313
1. Piping Diagrams..................................................................................314
1.1 Outdoor Unit .........................................................................................314
1.2 Indoor Unit............................................................................................318
2. Wiring Diagrams for Reference...........................................................321
2.1 Outdoor Unit .........................................................................................321
2.2 Field Wiring ..........................................................................................326
2.3 Indoor Unit............................................................................................329
3. List of Electrical and Functional Parts .................................................344
3.1 Outdoor Unit .........................................................................................344
3.2 Indoor Side ...........................................................................................346
4. Option List...........................................................................................352
4.1 Option List of Controllers......................................................................352
4.2 Option Lists (Outdoor Unit)...................................................................354