Mitsubishi Electric City Multi PEFY-WP20VMA-E, Техническое и сервисное руководство

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[
VII
Troubleshooting ]
- 15 - HWE1114A GB
4. Voltage test points on the control board
1. PEFY-WP20, 25, 32, 40, 50VMA-E
F01 Fuse(AC 250V 6.3A)
CND Power supply voltage (220 -
240VAC)
CN2M For M-NET transmission cable
connection (24 - 30VDC)
SWE Emergency operation
SW2 Capacity setting
SW4 Function setting
SW3 Function setting
CN32 Remote start/stop adapter
CN3A For MA remote controller cable
connection
(10 - 13 VDC (Between 1 and 3.))
CN52 Remote display
CN51 Centralized control
CN41 JAMA standard HA terminal A
CN44 Thermistor (water inlet / water
outlet temperature)
CN4F Float thermistor
CN20 Thermistor (Inlet temperature)
CNMF Fan motor output
1 - 4: 310 - 340 VDC
5 - 4: 15 VDC
6 - 4: 0 - 6.5 VDC
7 - 4: Stop 0 or 15 VDC
Run 7.5 VDC
(0 - 15 pulse)
CNP Drain-up mechanism output
(200VAC)
(*1)
V
FG
Voltage on the (-) side of PC51
and C25
(Same with the voltage between 7
(+) and 4 (-) of CNMF)
V
CC
Voltage between the C25 pins
15 VDC
(Same with the voltage between 5
(+) and 4 (-) of CNMF)
Vsp Voltage between the C53 pins
0VDC (with the fan stopped)
1 - 6.5VDC (with the fan in opera-
tion)
(Same with the voltage between 6
(+) and 4 (-) of CNMF)
CN3A
CN2M
SW4
CND
F01
CN32
Indoor controller board
Power supply board
SW3
PC51(*1)
CN41
CN51
CN52
CN20
CN4F
CN44
C25(*1)
C53(*1)
CNMF
SWE
SW2
CNP