Mitsubishi Electric PUHZ-SHW80VHA Service Manual page 59

( 1 ) O p eration summary of th e linear ex p ansion v alv e
LEV
3
2
M
5
1
6 4
< O utp ut p ulse signal and th e v alv e op eration>
Output
(Phase)
1 2 3
1
ON ON OFF
2
OFF ON ON
3
OFF OFF OFF
4
OFF OFF OFF
( 2 ) L inear ex p ansion v alv e op eration
Close
A
B
Ex t ra tightening (about 32 pulse)
OCH526C
Output
5 6 7 8
4
OFF OFF OFF OFF ON
OFF OFF OFF OFF
ON
ON ON ON OFF OFF
OFF ON ON ON
OFF
C
Open
500 pulse
Opening a valve
all the way
Pulse number
Outdoor controller board
12 V DC
1
Gray
[4
Orange 2
[3
Red 3
Y ellow
[2 4
[1 B lack 5
Connector LEV -A
LEV -B
LEV -C
A
B A
Drive circuit
[4
[3
[2
[1
B A