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

Outdoor Unit PC Board Layout Si34-704
144 Test Operation
2. Outdoor Unit PC Board Layout
Outdoor unit PC board
BS1
MODE SET RETURN TEST RESET
BS2 BS3 BS4 BS5
H1P H2P H3P H4P H5P H6P H7P
H8P
1 2 3 4 1 2 3 4
F1 F2 F1 F2 Q1 Q2
Indoor −
Outdoor
Outdoor −
Outdoor
Multi outdoor
(2) Set mode display (LED)
(3) Mode setting switch
(1) Microcomputer normal monitor
(4) Local setting switch
Connection terminal for transmission use
DS1 DS2
HAP
(V3054)
(1) Microcomputer normal monitor
This monitor blinks while in normal operation, and turns on or off when a malfunction occurs.
(2) Set mode display (LED)
LEDs display mode according to the setting.
(3) Mode setting switch
Used to change mode.
(4) Local setting switch
Used to make field settings.