SiUS12-928_A
Check
Service Diagnosis
156
6.1.10 Capacitor Voltage Check
Check No.12
Before this check, be sure to check the main circuit for short circuit.
With the circuit breaker still on, measure the voltage according to the drawing of the model in
question. Be careful never to touch any live parts.
18 class
24/32 class
6.1.11 Power Transistor Check
Check No.13
Never touch any live parts for at least 10 minutes after turning off the circuit breaker.
If unavoidably necessary to touch a live part, make sure the power transistor's supply voltage is
below 50 V using the tester.
For the UVW, make measurements at the terminal on the PCB or the relay connector.
Fan motor
lead wire
Four way valve coil
lead wire
Thermistor
lead wire
(Liquid pipe)
Thermistor
lead wire
(Gas pipe)
Thermistor
lead wire
Overload
protector
lead wire
Reactor
lead wire
Compressor
lead wire
TB2
>PS<
TB3
P2
N1
S90
S92
S93
S80
S20
S21 S22
S40
Multimeter
(DC. voltage range)
(Room-C)
(Room-B)
(Room-A)
Electronic expansion valve coil lead wire
(R11308)
Thermistor lead wire
(Gas pipe)
Thermistor lead wire
(Liquid pipe)
Four way valve coil lead wire
Multimeter
(DC. voltage range)
Reactor lead wire
Compressor lead wire
Overload protector lead wire
Thermistor lead wire
Fan motor lead
(R11230)
(Room-D)
(Room-C)
(Room-B)
(Room-A)
Electronic expansion valve coil lead wire
Tester's negative terminal
Power transistor
(+)
UVW
Power transistor
(–)
UVW
Tester's positive terminal
UVW
Power transistor
(+)
UVW
Power transistor
(–)
Normal resistance
Several k
Ω
to several M
Ω
Abnormal resistance
0 or
∞
Содержание SUPER MULTI NX G Series
Страница 1: ...SiUS12 928_A Applied Models Inverter Multi Heat Pump G Series J Series...
Страница 7: ...SiUS12 928_A Table of Contents vi...
Страница 10: ...SiUS12 928_A 1 List of Functions Part 1 List of Functions 1 Functions 3...
Страница 11: ...SiUS12 928_A List of Functions 2...
Страница 16: ...SiUS12 928_A 7 Specifications Part 2 Specifications 1 Specifications 9 1 1 Indoor Unit 9 1 2 Outdoor Unit 11...
Страница 17: ...SiUS12 928_A Specifications 8...
Страница 23: ...SiUS12 928_A Specifications Specifications 14...
Страница 25: ...SiUS12 928_A Printed Circuit Board Connector Wiring Diagram 16...
Страница 35: ...SiUS12 928_A Printed Circuit Board Connector Wiring Diagram Printed Circuit Board Connector Wiring Diagram 26...
Страница 37: ...SiUS12 928_A Function and Control 28...
Страница 69: ...SiUS12 928_A Control Specification Function and Control 60...
Страница 71: ...SiUS12 928_A Operation Manual 62...
Страница 73: ...SiUS12 928_A Duct Free System Operation Manual 64 2 Duct Free System 2 1 Remote Controller...
Страница 83: ...SiUS12 928_A Duct Free System Operation Manual 74 2 7 HOME LEAVE Operation is no longer displayed on the LCD...
Страница 84: ...Duct Free System SiUS12 928_A 75 Operation Manual...
Страница 85: ...SiUS12 928_A Duct Free System Operation Manual 76 2 8 TIMER Operation...
Страница 86: ...Duct Free System SiUS12 928_A 77 Operation Manual...
Страница 87: ...SiUS12 928_A Duct Free System Operation Manual 78 2 9 Note for Multi System...
Страница 88: ...Duct Free System SiUS12 928_A 79 Operation Manual...
Страница 97: ...SiUS12 928_A Slim Duct Built In System Operation Manual 88...
Страница 99: ...SiUS12 928_A Service Diagnosis 90...
Страница 169: ...SiUS12 928_A Removal Procedure 160...
Страница 225: ...SiUS12 928_A Trial Operation and Field Settings 216...
Страница 235: ...SiUS12 928_A Appendix 226...
Страница 243: ...SiUS12 928_A Wiring Diagrams Appendix 234...