46
9. Electronic Circuit Diagram
9.1 Indoor
Unit
3-
W
A
Y
VAL
VE
N
OP
E
N
CLO
SE
CL
O
S
E
O
P
EN
N
2-
W
A
Y
VAL
VE
EX
T
E
RNA
L
CO
NT
RO
L 1
BL
BL
CO
N
T
RO
L
PAN
EL
OU
T
D
OOR
A
IR
SE
N
SO
R
TAN
K
SE
N
SO
R
HEAT
C
O
O
L
L
N
R
OOM T
H
E
R
M
O
1
RY-V
2
BL
AC
1-
L
3
(B
LK
)
W
AC
1-
N
(WH
T
)
G
G0
1
(G
R
N
)
R
DAT
A
(R
E
D
)
G
G0
2
(G
R
N
)
POW
ER SU
PPLY 1
(L
)
B
L
1
Sing
le phas
e AC
230V 50H
z
W
GR
OU
N
D
IN
G
3
(N
)
I
n=
30m
A
2
RCC
B/
E
LCB
230V
30A
~
40
A
RE
CT
IF
ICA
T
IO
N
CI
R
CUI
T
CO
M
M
UNI
C
A
T
IO
N
CI
RC
UI
T
R
E
C
T
IF
IC
A
T
ION
CI
RCUI
T
NO
IS
E
FI
L
T
ER
CI
RC
UI
T
WA
T
E
R
PU
M
P
CI
R
CUI
T
W
BL
R BR
B
1
4 5 6 7
1
2
3
4
7
1
2
3
4
7
W
BL
R BR
B
M
CN
-P
U
M
P1
(W
H
T
)
B
80
3
C
OL
P
CN
-T
H1
4
1 2
3 2
W
AT
E
R
O
U
T
L
ET TEM
P.
SEN
SO
R(
THER
M
ISTO
R)
RE
F
R
IG
ERA
NT TEM
P.
SE
NSO
R(
THER
M
IS
T
O
R)
W
AT
E
R I
N
LET
TEM
P.
SE
NSO
R(
THER
M
IS
T
O
R)
t
ﾟ
t
ﾟ
t
ﾟ
WA
T
E
R
PU
M
P
E
L
E
C
T
R
O
NI
C
CO
NT
RO
L
L
E
R
(M
A
IN
)
FU
S
E
1
T6.
3A
L250V
B
GR
OU
N
D
IN
G
1 2
CN
-T
H3
t
ﾟ
HEX
W
ATER
O
U
TL
ET TEM
P.
SEN
SO
R
(T
HE
RM
IS
T
O
R)
CN
-O
LP
1
1
4
1
2
3
4
3
2
1
2
3
4
TO
OUT
DOO
OR U
NIT
TER
M
IN
AL
BO
AR
D
CN
-F
LW
SEN
1
1 2 3 4 5 6
FLO
W
SEN
SO
R
BR
B
BL
W
B
O
IL
ER
C
O
NTAC
T
EX
T
R
A
P
U
M
P
B
OOS
T
E
R
H
EATER
SI
G
N
AL
DE
T
E
C
T
IO
N
CI
R
CUI
T
RY-V
3
R
OOM
T
E
M
P
.
ZO
N
E
1
OL
P
B
OOS
T
E
R
H
EATER
CN1
CN
2
CN
3
CN
4
CN
5
CN
6
RY-
C
O
N
TACT1
SS
R
1
SW
1
SW
2
NO
ISE FI
LT
ER
C
IRCU
IT
(B
L)
(W
)
(R
)
NO
IS
E
FI
LTE
R
CI
RCUI
T
FU
S
E
3
T
3.
1
5A
L250V
G0
3
(G
R
N
)
G
R
EACTO
R
L1
(W
H
T
)
WW
L2
(W
H
T
)
1
2
1
2
WW
WA
T
E
R
PI
PI
N
G
BASE PA
N
G
WA
T
E
R
PI
PI
NG
G
CO
NN
E
CT
ING
BA
R
SSR20
5
SSR207
SSR2
06
WA
T
E
R
P
U
M
P
ZO
N
E
1
WA
T
E
R
P
U
M
P
ZO
N
E
2
OPT
IO
N
AL
BL
R
B
W
W
W
W
W
CN-
P
W
R3
G
reen
CN-
P
W
R2
Bl
u
e
CN-
P
W
R4
Bl
a
ck
CN-
CN
T
CN-
P
W
R
(B
L
K
)
CN
2
03
CN
2
02
CN
-CO
M
M
(Y
L
W
)
CN
-P
W
R
2
0
2
(Y
L
W
)
AC
L
(
BL
K)
AC
N
(
W
H
T
)
CN
-P
W
R
2
0
4
(Y
L
W
)
DCP
(R
E
D
)
DC
N
(B
LU
)
EL
EC
T
R
O
N
IC
C
O
N
T
R
O
LL
ER
(SU
B)
CN
20
1
CN
20
9
CN
20
8
CN
2
10
CN
2
06
CN
20
7
C
N
204
CN
2
05
C
N-
CNT
(W
H
IT
E
)
5
1
SSR204
1
2
3
4
5
2
4
1
3
2
1
1
1
2
1
3
3
1
2
1
SI
G
N
AL
DE
T
E
C
T
IO
N
CI
RC
UI
T
SI
G
NA
L
DETEC
TI
O
N
CI
RC
UI
T
SSR
201
SSR
200
SSR
203
SSR
202
RY
1
SO
L
A
R W
A
T
E
R
PU
M
P
P
OOL
W
A
T
E
R
PU
M
P
ERR
O
R
SI
G
N
AL
BI
T1
BI
T2
VCC
MI
X
IN
G
VAL
VE 1
NO
P
E
N
C
LO
S
E
C
LO
S
E
OP
E
N
N
MI
X
IN
G
VAL
VE 2
H
EAT
CO
O
L
LN
R
OOM T
H
E
R
M
O
1
R
OOM
T
H
E
R
MO
2
N
L
C
O
O
L
H
EAT
C
121 1µ 50V
C8
3
0.
1µ
16
V
C8
9
1µ 16
V
C9
8
1µ 16
V
G2
G2
R
136 1k
R14
1
6.
49k 1%
12
V
G2
5V
5V
5V
C9
2
0.
1µ
16
V
R
130 10
k
5V
C91 22
0µ
10
V
C88 1µ 16
V
R1
40
20
k
1%
R13
9
20
k
1%
R
128 20
k
1%
R1
35
20
k
1%
G2
G2
G2
C9
0
1µ 16V
C8
4
1µ 16
V
C8
1
1µ 16V
C7
3
1µ 16V
C7
9
1µ 16V
C9
3
100
p
50
V
ZD
2
20V
PC1
A
1
2
4
3
K
LF
3
R1 10
k
R2
4
10k
R9
7
1W
5V
C
E
R1
4
4
10k
5V
_
2
20
V
G6
SG SIGNAL
DEMAND
SIGNAL
DC 10V
DC GN
D
WATER TEMP.
ZONE 1
HEAT/COOL
SWITCH
EXTERNAL
COMP. SW
SOLAR TEMP.
SENSOR
WATER TEMP.
ZONE 2
POOL TEMP.
SENSOR
BUFFER TANK
SENSOR
ROOM TEMP.
ZONE 2
ROOM TEMP.
ZONE 1
W
W
W
W
1
W
(N
1
)
(L
1
)
R
Singl
e phas
e AC
230V
50Hz
POW
ER
SUPP
LY
2
BL
TER
M
IN
AL
BO
A
R
D
GR
OU
N
D
IN
G
BL
RCC
B/
E
LCB
80
3
C
OL
P
BL
AC2-
N2
(WH
T)
SI
G
N
AL
DE
T
E
C
T
IO
N
CI
R
CUI
T
RY
-B
OO
STER
BAC
KU
P H
EAT
ER
(6
kW
)
BL
ACL3
(BLK
)
2
1
2
33
AC
2-L3
(BLK
)
RY-HT
(L3
)
HT1-
L3
(RE
D)
R
BL
W
HT1-
L2
(OR
G)
AC
2-L2
(YLW
)
RY-HT
(L2
)
W
OL
P
80
3
C
AB
O
Y
O
W
2
2
1
1
O
I
n=
30m
A
230V
30A
~40A
C12
3
1µ 50
V
R86 10k
R81 10
k
C4
8
0.
1u
16V
L4
C6
1
100
0p
50V
C6
3
10
00
p
50V
5V
_
2
5V
L3
12V
*C
57
R1
1
4
1.
5k
1/
10W
Q1
9
E
C
B
10k
10
k
5V
IC
9
1 2 3 4
16 15 14 13
*R
22
*J
P
8
*R
1
1
*R
21
*R
12
*R
Y
-H
T
L3
12V
*R
Y
-H
T
L
2
*R
Y
-B
OO
S
T
E
R
IC
1
5
1 2 3 4
R
126
1/
2W
C8
2
10
00p
50
V
RY-
C
O
N
TACT1
R1
3
3
1/
2W
15
16
14 13
5
12
4
12
SSR
1
3
12
V
5V
-+
*R
13
1
*B
Z
1
R1
4
3
6.
49
k
1%
