Mitsubishi Electric MXZ-8B140VA Technical & Service Manual page 40

8-7-3. Outdoor power circuit board
MXZ-8B140VA
MXZ-8B160VA
CN4
Connect to the outdoor
controller circuit board (CN4)
N2
Connect to the smoothing
capacitor CB -
U/V/W
Connect to the compres-
sor (MC) Voltage among
phases: 10 V-180 V AC
OCH480A
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
P2
Connect to the smooth-
DCL1, DCL2
ing capacitor CB +
Connect to DCL
CN52C CNDC
280-380 V DC (1+, 3-)
52C driving signal
Connect to the outdoor Connect to the outdoor
controller circuit board controller circuit board
(CN52C) (CNDC)
EI, E4 CNAC1, CNAC2
Connect to the 220-240 V AC
earth Connect to the out-
door controller circuit
board (CNAC)
40
E2, E3
Connect to the earth
NI, LI
Voltage of 220-240 V AC
is input (Connect to the
terminal block (TB1))