Control Circuit (Tjmu-A); Control Power Source Function Block - Mitsubishi Electric PURY-P72 Service Handbook

[ IX Troubleshooting ]
[TJMU-A]

-8- Control Circuit (TJMU-A)

(1) Control power source function block

1) PURY-P72TJMU-A
Noise filter
Noise filter
TB1
AC 208 / 230 V
Terminal block for
Fuse
power source
Surge protection
Control board
72C
Solenoid valve
4-way valve
CH11 Relay, LEV
Drive circuit
LEV
12V Power supply
TB7
Terminal block for
transmission line
CN40
for centralized control
(DC 24 ~ 30 V)
TB3
Indoor/outdoor
transmission block
(DC 24 ~ 30 V)
M-NET
transmission line
(Non-polar 2 wire)
TB2
AC Power source
AC 208 / 230 V
Terminal block for
power source
TB15
Terminal block
for MA remote
TB5
To next unit controller
(Indoor unit)
Terminal block
for transmission
line connection
DC 17 ~ 30 V
A, B
DC 17 ~ 30 V
A, B
DC 9 ~ 12 V
* 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.)
HWE09130
INV board
Rectifier
DCL
72C
17V Power supply
5 V Power supply
Smoothing capacitor
Fuse
Inverter reset
circuit
63H1
Microcomputer 18 V Power supply
5 V Power supply
DC / DC converter
M-NET board
Detection circuit for
the power supply to
the transmission line
Relay drive circuit
Relay
Indoor unit
ME remote
controller
MA remote
controller
- 327 -
Power source system (AC 208 / 230 V)
Control system (DC 5 ~ 30 V)
Compressor
Smoothing capacitor Inverter
Inverter drive
circuit
Microcomputer
Fan board
Inverter
Fuse
Inverter drive
circuit
5 V Power supply Microcomputer
Fuse
DC / DC
converter
30 V Power supply
Heat
exchanger
fan
GB