51
9. Electronic Circuit Diagram
9.1 Indoor
Unit
9.1.1 WH-SDC09H3E8
CN
20
9
CN
20
1
C
N20
2
CN
203
CN1
SS
R2
02
SS
R2
03
RY
1
CN
20
8
CN
20
5
SS
R2
00
SS
R2
01
PO
OL
W
AT
ER
PU
M
P
SO
LAR
W
AT
ER
PU
M
P
ERROR SI
G
N
AL
WA
TE
R
P
U
MP
ZO
N
E 1
WA
TE
R
P
U
MP
ZO
N
E 2
ROOM TEMP.
ZONE 2
ROOM TEMP.
ZONE 1
BUFFERTANK
SENSOR
CN
20
4
POOL TEMP.
SENSOR
WATER TEMP.
ZONE 2
WATER TEMP.
ZONE 1
CN
21
0
HEAT/COOL
SWITCH
EXTERNAL
COMP. SW
CN2
06
CN2
07
SOLARTEMP.
SENSOR
DEMAND
SIGNAL
SG
SIGNAL
VC
C
BIT
2
BIT1
DC GN
D
DC 10
V
CO
O
L
HE
AT
N
L
ROO
M
TH
ERMO 2
CO
O
L
H
EA
T
N
L
RO
OM
TH
ER
M
O
1
OP
EN
CL
OS
E
N
MIX
IN
G
VA
LVE 2
SSR
207
SSR
206
OP
EN
CL
OS
E
N
MIX
ING
VA
LVE 1
SSR
205
SSR
204
GR
OU
N
D
IN
G
GR
OU
ND
IN
G
TERM
IN
AL
BO
AR
D
BL
W
B
Y
(L
A1
)
RCCB
POW
ER SU
PPL
Y 1
3~phase
AC400V 5
0H
z
TO
OUTD
OOR U
NIT
400V 25
A
l
∆
n=
30m
A
(L
A2
)
(L
A3
)
(N
)
1
2
3
4
5
W
BL
B
BR
R
W
BL
B
BR
R
7
4
1
2
3
7
4
1
2
3
1
4
7
6
5
M
WA
TE
R
PU
M
P
WA
TE
R
PIP
IN
G
WA
TE
R
PU
M
P
CI
RCUI
T
SI
G
N
AL
DE
TE
CT
IO
N
CI
RCUI
T
SI
G
N
AL
DET
ECT
IO
N
CI
RCU
IT
G
R
G
W
BL
Y
B
NOI
SE
FI
LT
ER
CI
RCUI
T
OL
P B
OOS
TE
R
HE
AT
ER
RO
OM
TE
M
P.
ZONE
1
CN
6
OU
TD
OO
R
AIR
SE
N
SO
R
TA
N
K
SE
N
SO
R
CN
5
EX
TE
RNA
L
CO
NT
RO
L 1
CN
4
BO
IL
ER
CO
NT
AC
T
EX
TR
A
PU
M
P
BOOS
TE
R
HE
AT
ER
CN
3
BL
BL
CONTRO
L
PA
N
EL
SS
R1
AC
1-
L3
(B
LK
)
AC
1-
L2
(Y
LW)
AC
1-
L1
(B
LU
)
AC
1-
N
(W
HT
)
G0
1
(G
RN)
CN
-P
UM
P1
(W
HT
)
G0
2
(G
RN)
DA
TA
(RE
D)
GRO
UNDI
NG
(L
1
)
RCCB
/E
LC
B
POW
ER
SUPP
LY 2
Singl
e phaseAC230V
50Hz
230V 30A
~40
A
l
∆
n=
30
mA
(N
1
)
RY
-C
O
N
TA
CT
1
SI
GN
AL
DE
TE
CTI
O
N
CI
RCUI
T
5
1
CN-C
N
T
(W
HT
)
CO
M
M
UN
IC
AT
IO
N
CI
RCUI
T
NO
IS
E FI
LT
ER
C
IRCUI
T
WW
WW
W
W
W
W
W
BL
R
EAC
TO
R
21
1
21
R
EC
TI
FIC
AT
ION
CI
RCUI
T
NOI
SE
FI
LT
ER
CI
RCUI
T
FU
SE3
T3
.1
5
A L2
50
V
FU
SE1
T6
.3
A L2
50
V
RY-
BOOS
TER
1
1
2
1
2
4
1
5
3
CN-
CN
T
(WH
T)
CN-
PW
R
2
(B
LU
)
1
3
CN-
PW
R (B
LK
)
CN
-CO
M
M
(Y
LW)
CN-P
W
R2
02
(Y
LW)
CN-P
W
R2
04
(Y
LW)
ACN (W
HT
)
AC
L (
BL
K)
3
1 CN-
PW
R
3
(G
RN
)
DCN
(B
LU
)
D
C
P (
R
ED
)
W
W
W W
W
W
B
B
B
R
W
2
1
1
2 3
CN-
PW
R
4
(B
LK
)
W
W
BL
OP
EN
CL
OS
E
N
2-
W
AY
VA
LV
E
CO
OL
HE
AT
N
L
RO
OM
THE
R
MO
1
CN
2
OP
EN
CL
OS
E
N
3-
W
AY
VA
LV
E
RY-V
3
RY-V
2
SI
G
N
AL
DE
TE
CTI
O
N
CI
RCUI
T
CN-
TH
3
(W
HT
)
CN-F
LW
SE
N
(W
HT
)
t°
HE
X
W
AT
ER
O
U
TL
ET
TE
M
P.
S
EN
SOR
(T
HE
RMI
ST
O
R)
t°
W
ATE
R O
U
TL
ET
TE
M
P.
SE
NS
O
R
(T
HE
RMI
ST
O
R)
t°
RE
FRI
G
ER
AN
T
TE
M
P.
SE
NS
O
R
(T
HE
RM
IST
O
R)
t°
W
ATE
R I
N
LE
T
TE
M
P.
SE
NS
O
R
(T
HE
RM
IST
O
R)
1
1 2 3 4 5
1 2 3 4
6
2
CN
-O
LP
1
(W
HT
)
1 2
OL
P
80
±
3°
C
FLO
W
SEN
SO
R
W
BR
B BL
SW
1
SW
2
RY-H
T (L1
)
RY-H
T (L2
)
RY-H
T (L3
)
AC
2-L1
(BLU
)
AC
2-L2
(YLW
)
AC
2-L3
(BLK
)
AC2-
N2
(WHT
)
AC
2-
N1
(G
R
Y)
TE
RM
IN
A
L
BO
A
RD
AC
L3
(B
LK
)
LJ
P2
(W
HT
)
HT1-
L1
(BR
W)
HT1-
L3
(RED
)
HT1-
L2
(ORG
)
L1
(WH
T)
G0
3
(G
RN)
L2
(W
HT
)
FU
SE2
20
A 500
V
2
3
4
1
2
3
4
OL
P
80
±3
°C
OL
P
80
±
3°
C
11
OL
P
80
±3
°C
22
33
BR
BR
BR
BL
BL
BL
GR
R
R
B
G
O
OO
Y
R
EC
TIF
IC
AT
ION
CI
RCUI
T
BA
CK
UP
HE
AT
ER
A
EL
EC
TR
O
N
IC
C
O
N
TR
O
LL
ER
(S
UB
)
OP
TI
ONA
L
EL
EC
TR
O
N
IC
CONT
RO
LLE
R
(M
AI
N)
BAS
E
PA
N
G
WA
TE
R
PI
PIN
G
CO
NNE
C
TI
NG
BA
R
G
SIG
N
AL
DE
TE
CTI
O
N
CI
RCUI
T
5V
_2
20
V
G6
R8
1
10
k
L4
R8
6
10
k
C6
3
10
00
p
50
V
5V
5V
_2
CN
-T
H1
(W
HT
)
5V
C9
2
0.
1µ 16
V
R1
30
10
k
5V
C9
1
22
0µ
10
V
C8
8
1µ 16
V
R1
40
20
k
1%
R1
39
20
k
1%
R1
28
20
k
1%
R1
32
82
0
1%
R1
35
20
k
1%
G2
G2
G2
C9
0
1µ 16
V
C8
4
1µ 16
V
C8
1
1µ 16
V
C7
3
1µ 16
V
C7
9
1µ 16
V
12
V
*R
Y-
H
TL
1
C1
21 1µ 50V
C8
3
0.
1µ 16
V
C8
9
1µ 16
V
C9
8
1µ 16
V
G2
G2
G2
R1
36 1k
R1
41
6.
49
k
1%
12
V
5V
5V
R1
43
6.
49
k
1%
C9
3
10
0p
50
V
C1
23 1µ 50V
ZD2 20
V
PC
1
A
1
2
4
3
K
LF
3
R1 10
k
R2
4
10
k
5V
*R
Y-
HT
L2
*R
Y-
HT
L3
