Mitsubishi Electric PUHZ-W50VHA Service Manual page 79

Outdoor power circuit board
PUHZ-HW140VHA(-BS)
PUHZ-HW140VHA2(-BS)
PUHZ-HW140VHA2R1(-BS)
PUHZ-HW140VHA2R2-BS
PUHZ-HW140VHA2R3(-BS)
PUHZ-HW140VHA2R4(-BS)
CN4
Connect to the outdoor
controller circuit board (CN4)
N2
Connect to the smoothing
capacitor CB −
U/V/W P2
Connect to the compres- Connect to the
sor (MC) Voltage among smoothing capacitor
phases: 10–180 V AC CB +
OCH439M
CN2
Connect to the outdoor controller circuit board (CN2)
1–5: Transmitting signal to outdoor controller circuit board (0–5 V DC)
2–5: Zero cross signal (0–5 V DC)
3–4: 18 V DC
6–5: 16 V DC
7–5: 16 V DC
CN52C
52C driving signal
Connect to the outdoor
controller circuit board
(CN52C)
DCL1, DCL2 EI, E4
Connect to DCL Connect to
the earth
79
CNDC
280–380 V DC (1+, 3−)
Connect to the outdoor
controller circuit board
E2, E3
(CNDC)
Connect to the earth
CNAC1, CNAC2 NI, LI
230 V AC
Voltage of 230 V AC is
Connect to the out- input (Connect to the ter-
door controller circuit
minal block (TB1))
board (CNAC)