<Output pulse signal and the valve operation>
(2) Linear expansion valve operation
A
B
C
Open
Open
Extra tightening (about 32 pulse)
Pulse number
500 pulse
Opening a valve
all the way
Close
Close
V
a
lve
p
o
si
ti
o
n
(ca
p
a
ci
ty)
2SHQLQJDYDOYHĺ
ĺĺĺĺĺĺĺ
&ORVLQJDYDOYHĺĺĺĺĺĺĺĺ
7KHRXWSXWSXOVHVKLIWVLQDERYHRUGHU
Â:KHQOLQHDUH[SDQVLRQYDOYHRSHUDWLRQVWRSVDOORXWSXWSKDVHV
EHFRPH2))
Â:KHQWKHSRZHULVWXUQHGRQSXOVHFORVLQJYDOYHVLJQDOZLOO
EHVHQWWLOOLWJRHVWR
A
SRLQWLQRUGHUWRGHILQHWKHYDOYHSRVLWLRQ
7KHSXOVHVLJQDOLVEHLQJVHQWIRUDERXWVHFRQGV
:KHQWKHYDOYHPRYHVVPRRWKO\WKHUHLVQRVRXQGRUYLEUDWLRQ
RFFXUULQJIURPWKHOLQHDUH[SDQVLRQYDOYHKRZHYHUZKHQWKH
SXOVHQXPEHUPRYHVIURP
B
WR
A
RUZKHQWKHYDOYHLVORFNHG
VRXQGFDQEHKHDUG
1RVRXQGLVKHDUGZKHQWKHSXOVHQXPEHUPRYHVIURP
B
WR
A
LQ
FDVHFRLOLVEXUQWRXWRUPRWRULVORFNHGE\RSHQSKDVH
Â6RXQGFDQEHGHWHFWHGE\SODFLQJWKHHDUDJDLQVWWKHVFUHZGULYHU
KDQGOHZKLOHSXWWLQJWKHVFUHZGULYHUWRWKHOLQHDUH[SDQVLRQ
YDOYH
LEV
M
1
6
[
4
[
4
[
3
[
2
[
1
1
Gray
Orange
Red
Yellow
Black
2
3
4
5
Connector LEV-A
LEV-B
LEV-C
12 V DC
Outdoor controller board
Drive circuit
[
3
[
2
[
1
3
2
5
4
/LQHDUH[SDQVLRQYDOYH
(1) Operation summary of the linear expansion valve
/LQHDUH[SDQVLRQYDOYHRSHQVFORVHVWKURXJKVWHSSLQJPRWRUDIWHUUHFHLYLQJWKHSXOVHVLJQDOIURPWKHRXWGRRUFRQWUROOHUERDUG
9DOYHSRVLWLRQFDQEHFKDQJHGLQSURSRUWLRQWRWKHQXPEHURISXOVHVLJQDO
&RQQHFWLRQEHWZHHQWKHRXWGRRUFRQWUROOHUERDUGDQGWKHOLQHDUH[SDQVLRQYDOYH!
1
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
ON
OFF
:
1
Output
(Phase)
Output
:
2
:
3
:
4
2
3
4
5
6
7
8
OFF
OFF
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
ON
OCH651
All manuals and user guides at all-guides.com