Mitsubishi Electronics PUHY-P72 User Manual
[
IX Troubleshooting ]
- 260 -
HWE08040
GB
2) PUHY-P120THMU-A
* MA remote controllers and M-NET remote controllers cannot be used together.
(Both the M-NET and MA remote controller can be connected to a system with a system controller.)
TB2
TB15
Terminal block for
power source
power source
TB5
Terminal block
for MA remote
controller
for MA remote
controller
Terminal block
for transmission
line connection
DC 17 ~ 30 V
for transmission
line connection
DC 17 ~ 30 V
CN40
A, B
A, B
MA
remote controller wiring
(Non-polar 2 wire)
DC 17 ~ 30 V
DC 9 ~ 12 V
M-NET remote
controller
MA remote
controller
AC 208 / 230 V
Terminal block for
power source
Terminal block for
power source
TB1
Noise filter
Noise filter
Fuse
Surge protection
INV board
72C DCL
Rectifier
Smoothing capacitor
15V Power supply
Inverter drive
circuit
circuit
Microcomputer
5 V Power supply
12 V Power supply
DC / DC
converter
converter
Fuse
Inverter
Compressor
Heat
exchanger
fan
Fuse
Fan board
Microcomputer
5 V Power supply
Inverter
Inverter drive
circuit
circuit
Outdoor unit
Power source system (AC 208 / 230 V)
Control system (DC 5 ~ 30 V)
Control system (DC 5 ~ 30 V)
63H1
Inverter reset
circuit
circuit
DC / DC converter
Microcomputer
5 V Power supply
18 V Power supply
Fuse
Detection circuit for
the power supply to
the transmission line
the power supply to
the transmission line
M-NET board
DC / DC
converter
converter
30 V Power supply
Relay drive circuit
Relay
Indoor unit
LEV
72C
Solenoid valve
4-way valve
CH11
Solenoid valve
4-way valve
CH11
Fuse
Control board
12V Power supply
Relay, LEV
Drive circuit
Drive circuit
AC 208 / 230 V
AC Power source
To next unit
(Indoor unit)
(Indoor unit)
Terminal block for
transmission line
for centralized control
(DC 24 ~ 30 V)
transmission line
for centralized control
(DC 24 ~ 30 V)
TB7
Indoor/outdoor
transmission block
(DC 24 ~ 30 V)
transmission block
(DC 24 ~ 30 V)
TB3
[THMU-A]