Wiring Diagram - Mitsubishi Electric EHGT17D-YM9ED Service Manual

5

WIRING DIAGRAM

Power supply
to Booster heater
3~ 400V 50Hz
L1 L2
(1) (3)
ECB1
2
BHCP 1
2
BHC1
1 3 5 A1 1
2 4 6 A2 2
CNBHT
(BK)
1 3
to (*7)
to (*8)
BHT BHF
θ
BH1 BH2
CNW12 CN21 CN20
TAB1 CNW5
(RD) (YE) (RD) TBI.1
(BU)
8 7 6 5 4
1 4 1 4 1 3 1 2
t° t°
t°
to C.B.
relay connector
THW5A THW5B
TH1 IN1 IN2
(*2)
Cautions when Servicing
• WARNING:
When the main supply is turned off, the voltage in the main capacitor will
drop to 20V in approx. 20 minutes.
When servicing, make sure that LED1 (green) on the C.B. goes out, and
then wait for at least 20 minutes.
• Components other than the C.B. may be faulty: Check and take
corrective action, referring to the service manual. Do not replace the
C.B. without checking.
Insulation resistance of the compressor
Caution
Insulation resistance of the compressor may be around 1 MΩ on the condition that the
appliance has been left with the main power turned off for a long time or right after the
installation completed.
In case the circuit breaker works, check the insulation resistance after 12 hours from
turning on the main power.
OCH722A
Immersion heater (1Ph1kW)(Option)
Power supply
to Immersion heater
~/N 230V 50Hz
L3 L N
(5) (1) (3)
ECB2
2 4
4 6
A1 IHC 1 3 5 A1
3 5
4 6 A2
2 4 6 A2
BHC2
3 5 A1 A B
θ θ
IHT
4 6 A2
IH
2
1
CNIH
(OG)
3
2 2 2
1
2
CNBC
(GY)
3
1
2
3
CNBH
(WH)
5
2
7
TBI.2 TBI.3 TBI.4
8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6
3 2 1
– + – + –
– + +
V
IN3 IN4 IN5 IN6 IN7 IN10 IN8 IN9 IN11 IN12 OUTA1
THW1 THW2
t° t°
to FTC board
(*2)
TH7
C.B.
t°
MBP
1 3 1 2 1
MS 5 TH33 TH32 TH7/6
(YE) (BK)
3~
CNF1
1 7 (WH)
1
TRANS
2
3
CNDC
(PK)
CNAC
1
CNS
3 1
(WH)
3
N.F.
TB1
LI1
RD
L1
LI2
WH
L2
POWER
SUPPLY
LI3
3N~ BK
L3
400V 50Hz
NI
BU
N
CNPWM
(WH)
1
3
CNP1
TBO.1
(WH)
3
1 X1
1
M
1~
2
MP1 3
X2
3
M
M 1~
4
1~ MP2
X3
5
2WV2b
6
M
X14
1~ 1
M
MP3
1~
3
MP4
CNP4
(RD)
TBO.2 X5A
1
Close
N
M
2
1~ Open
X5B
MXV 3
4
5
6 X4
CNV1
(WH)
1
3
5
TBO.3
X10
Signal output 1
(Boiler)
2
X16
3
Signal output
(thermo on)
4
X11
5
Signal output
(Error)
6
X12
7
8
TBO.4
X15
1
Signal output
(Comp. on)
2
X13
3
M
1~
4
2WV2a X9
1 5
3 6
X8
CNIH
7
(OG)
8
CNBHT
(BK)
1
3
CNBC
(GY)
1
3
CNBH
(WH)
X6
1
3
X7
5
7
TBI.5 TBI.6
5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1
CN1A
(WH)
CN22
(BU)
1 4 2 1
to (*4)
t° t° t° t° t° t°
THW6 THW7 THW8 THW9 THWB1 THW10
TH2 TH33 TH32 TH3 TH4 TH34
63L 63H
t° t° t° t° t° t°
to (*3)
1 2 2 1 1 3 2 1
4
TH4 63HS TH34
TH3 1 5
(WH) (WH) (RD) LEV-A
(RD) (WH)
(WH)
1 3 1 3
63L 63H
(RD) (YE)
1 CNM 14
LED2 LED1 (WH)
CN4
CN2
(WH)
(RD)
1 7 1 2
2
F3 7
(WH)
2
F4
1 3 SV1/CH 1 3 SV3/SS
(GY)
4
TH8
3 2 7 2
P.B.
t°
1 3 1 2 1 2 1 7 1 2
CN7 CN6 CN5 CN2 CN4
(WH) (WH) (RD) (RD) (WH)
BK TB-L3
L3OUT
X52CB
WH
RD
RD
RS
–
RD
TB-L1
+ X52CA
–
+
TB-N
+
+
CK
V
U W
MS
3~
MC
2
CNCT CNAC2
CNAC1
(RD) 1 (RD)
(WH) 1 3 2 1 3
+
+
–
1 3 3 1
CNDC
CNL
EI E2
(PK)
(BU)
2
11
CN01
(BK)
1
3
F1
5
F2
<How to use TBO.1 to 4>
Connect them using either way as shown below.
Tool
Tool
Conductor
Conductor
Outline view Top view
FTC
TBO.1
1
2
3
1
CNP1
F2
4
(WH)
3
5
6
1
1
CNP4
1 TBO.2
3 (RD)
LED1
2
SW5
3
4
5
8
6
1
1
CNV1
3
1 TBO.3
(WH)
5
SW4
2
3
4 6
1
5
6
7
SW3
LED2
8
1 TBO.4
8
2
1
LED3
3
4
5 SW2
6
7
8 8
1
CNIH 1
(OG) 1
3
1 SW1
1 SW6
CNBC CNBHT
(GY) (BK)
3 3
5
8
1
LED4
3
CNBH
5 (WH)
7
TAB1
CN1A CNW5 CNW12
(WH) (BU) (RD)
1 1
1
4 4 4
8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3
TBI.1 TBI.2 TBI.3 TBI.4 TBI.5
Symbols used in wiring diagram are, : connector, : terminal block
LEV-A
M
5
63HS
to (*6)
to (*3)
to (*5) to (*4)
*1 MODEL SELECT
*1 *1
The black square (■) indicates a switch position.
MODEL SW6
ON
Brine
to
OFF
Water
1 2 3 4 5 6 7 8
1 3
CNDM
(WH)
1 3 21S4
(WH) (GN)
3
3
CONV. B.
1
LO1
RD
LO2
WH
LO3
BK
NO
BU
ACL4
1
CN01
3
(BK)
5
F1
1
CN3C
(BU)
3
1
CNPWM
(WH)
3
1
3WV
CN851 M
(BK)
8
1
CNRF Wireless receiver
(WH) (Option)
5
1
CN105 WiFi adapter
(Option)
(RD)
5
1
CNIT
(BU)
5
CN22 1
2
(BU)
CN108
CN21 CN20
(YE) (RD)
1
1
2
3
2 1 8 7 6 5 4 3 2 1
TBI.6
SW5
ON
OFF
1 2 3 4 6
5
ACL1
ACL2
ACL3