Indoor Unit - Mitsubishi Electric PUHY-P200 Service Handbook

[8-10 Control Circuit ]
2) PUHY-P450 - P500YKB-A1
Noise filter
TB1
AC Power Source
(380VAC~415)
Terminal block for
power source
Surge protection
Control
board
72C
Solenoid valve
4-way valve
CH11
LEV
TB7
Terminal block for
transmission line
for centralized control
(24 ~ 30 VDC)
TB3
Indoor/outdoor
transmission block
(24 ~ 30 VDC)
TB2
Terminal block for
power source
TB15
Terminal block
for MA remote
TB5
controller
To next unit

(Indoor unit)

Terminal block
for transmission
line connection
17 ~ 30 VDC
A, B
17 ~ 30 VDC
A, B
9 ~ 12 VDC
* MA remote controllers and ME remote controllers cannot be used together.
(Both the ME and MA remote controller can be connected to a system with a system controller.)
HWE14040
Noise filter
Fuse
Inverter reset
circuit
Microcomputer 16V Power supply
Relay, LEV
Drive circuit
5V Power supply
12V Power supply DC / DC converter
M-NET board
Detection circuit for
the power supply to
the transmission line
CN40
Indoor unit
ME remote
controller
MA remote
controller
Detection circuit for the power
supply to the transmission line
Rectifier
Converter
drive circuit
15V Power supply
DC / DC
converter
Fan INV board
63H1 Fuse
5V Power supply
Connect board
Smoothing capacitor
16V Power supply
Relay drive circuit
DC / DC
converter
30V Power supply
Relay
- 277 -
Power source system (380 ~ 415 VAC)
Control system (5 ~ 30 VDC)
Rectifier
Smoothing capacitor Compressor
DCL 72C Inverter
Microcomputer Inverter drive
circuit
5V Power supply
17V Power supply
Fuse
Heat
Inverter exchanger
fan 1
Inverter drive
circuit
Heat
exchanger
Microcomputer
fan 2
Fan INV board
Inverter
Fuse
Inverter drive
circuit
5V Power supply Microcomputer
GB