Haier HCP-80, Operating Instructions Manual, Page: 32 / 36

30
Circuit diagram
C
N
27
C
N
2~
5
C
N
1
6
C
N
2
1
C
N
18
+24V
GND
TX
RX
OUT
+24V
GND
TX
RX
OUT
C
N
5
C
N
19
C
N
30
C
N
29
C
N
31
+
5
V
G
N
D B A
+
1
2V
D
is
pla
y
+5V
GND
B
A
+12V
a
m
b
ie
n
t t
em
p
e
ra
tu
re
se
n
so
r
G
as
s
o
le
n
o
id
va
lv
e
D
o
o
r s
w
itc
h
C
O
2 s
e
n
so
r
D
o
or
se
al
P
T
1
0
0
0
-1
P
T
1
0
0
0
-2
+
5V
G
N
D
T
X
D
R
X
D
F
a
n
C
N
9
+
24
V
G
N
D
0~
10
+
O
ve
r t
em
pe
ra
tu
re
p
ro
te
cti
o
n
C
N
17
C
N
15
C
N
25
C
N
26
C
N
11
C
N
13
C
N
24
C
N
7
C
N
1
C
N
3
C
N
4
2
C
N
4
0
C
N
23
C
N
10
C
N
6
C
N
8
Le
ve
l r
ela
y