Mitsubishi Electric PUHY-P200 Service Handbook page 150

7. Control circuit
(1) Control power source function block
[ P200~P400 types ]
TB1
Noise filter
AC380~415V
Terminal block for
power source
52C1
52C1
Relay,LEV
Solenoid valve
drive circuit
4-way valve
Micro-
TB7
Terminal block for computer
centralized control
(DC24 ~ 30V)
TB3
Terminal block for
transmission line
Control circuit board
(DC24 ~ 30V)
M-NET trans-
mission line
(Non-polar
2-wire line)
TB2
AC220~240V
Terminal block for power source
TB15
MA remote controller
terminal block
TB5
To next unit
Transmission
(Indoor unit)
terminal block
DC17~30V
A,B
MA remote DC17~30V
controller line
(Non-polar
2-wire line)
A,B or 1,2
DC8.5~12V
❉ M-NET remote controller and MA remote controller can not be used together.
Rectifier 52C1
Fuse (6.3A)
Heat
exchanger
fan
IPM drive circuit
Microcomputer
Transformer
Power source
Power source
FAN control board
5V
Power source
Power supply for centralized control
CN40
Power supply for transmission line
Indoor unit
M-NET remote
controller
MA remote
controller
Power source system
Control system (DC5~30V)
Smoothing
capacitor Inverter
Fuse
IPM drive circuit
(10A)
IPM
Fuse
(2A)
5V
DC/DC converter
15V
Rectifier
12V
Power source
7V
Power source
Power
source
Power circuit board
- 148 -
Compressor
G/A board
15V
Power source
12V
❉
Power source
5V
Power source
Cooling fan
Cooling fan
drive circuit
Microcomputer
30V
Outdoor unit