8-10 Control Circuit; Control Power Supply Function Block - Mitsubishi Electric PUHY-HP72 Service Handbook

[8-10 Control Circuit ]

8-10 Control Circuit

8-10-1

Control Power Supply Function Block

1) YNU
Noise filter board
Noise filter
TB1
AC Power source
YNU: 460 VAC
Fuse
Power-supply
terminal block
Surge protector
Filter board
Noise filter
Control board
Solenoid valve
Four-way valve
Relay/LEV
drive circuit
72C
LEV
USB circuit
TB7
Terminal block for
transmission line
CN40
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.)
44
- chapter 8
Inverter board
Rectifier
Fuse
Transformer box
Transformer Transformer
Power-supply board
Inverter-
Fuse
reset circuit
Rectifier
Microcomputer
Circulating fan
control circuit
3.3 V
Regulator
power supply
5 V DC-DC
power supply converter
Transmission
power-supply
detection circuit
Indoor unit
ME remote
controller
MA remote
controller
AC power source (YNU: 460 VAC)
Control system (5-30 VDC)
DCL 72C
Smoothing capacitor
5 V power supply
FAN board
18 V power supply Fuse
DC-DC
converter
17 V power supply
30 V power supply
DC-DC
converter
5 V power supply
24 V power supply
DC-DC
FAN board
converter
12 V power supply
Fuse
9 V power supply
Relay drive circuit
5 V power supply
Circulating fan
Compressor
Inverter
Inverter
drive circuit
Microcomputer
Inverter Heat exchanger fan
Inverter
drive circuit
Microcomputer
Inverter Heat exchanger fan
Inverter
drive circuit
Microcomputer
HWE18240_GB