Mitsubishi Electric EHST20C-VM6HB Service Manual page 18

PUHZ-SW75VHAR4.UK PUHZ-SW75VHAR4-BS.UK
SYMBOL
TB1 Terminal Block <Power Supply, Indoor/Outdoor>
MC Motor for Compressor
MF1 Fan Motor
21S4 Solenoid Valve (4-Way Valve)
63H High Pressure Switch
63HS High Pressure Sensor
TH3 Thermistor <Liquid>
TH4 Thermistor <Discharge>
TH6 Thermistor <2-Phase Pipe>
TH7 Thermistor <Ambient>
TH8 Thermistor <Heat Sink>
TH34 Thermistor <Comp. Surface>
LEV-A, LEV-B Linear Expansion Valve
ACL Reactor
CY1, CY2 Capacitor
P. B. Power Circuit Board
C. B.
MF1
MS
3~
1
1
3
CNDC
(PK)
CNS
(WH)
3 1
P. B.
BK
Wo
W
V
MS WH
3~
U Vo
RD
MC
Uo
1
OCH533D
NAME SYMBOL
C. B. Controller Circuit Board
F1, F2, F3, F4 Fuse <T6.3AL250V>
Switch <Manual Defrost, Defect History Record Reset,
SW1
Refrigerant Address>
SW4 Switch <Function Switch>
SW5 Switch <Function Switch, Model Select>
SW6 Switch <Model Select>
SW7 Switch <Function Switch>
SW8 Switch <Function Switch>
SW9 Switch <Function Switch>
SWP Switch <Pump Down>
CNDM Connector <Connection for Option>
SV1/CH Connector <Connection for Option>
SV3/SS Connector <Connection for Option>
CNM Connector <Connection for Option>
TH7 TH6 TH3 TH4
t° t° t° t°
1 4 1 2 2
TH7/6 TH3 TH4
(RD) (WH) (WH)
7
CNF1
(WH)
T R A N S
F2
F1
CNAC
(WH)
1
3
TH8
2
t°
1 2 1
CN4 CN6
(WH) (WH)
IC710
DB2
+ ~
+
7
~
–
DB1
+
~
1
~
–
DB3
+
~
Q600
TBL4
~
CNDC
(PK) –
3
NAME
LEV-A LEV-B
M M
TH34
63HS
63H
t°
1 1 3 2 1
1 5 1
63HS T H34 LE V-A LE V-B
(WH) (RD) (WH) (RD)
LED1
LED2
3
1
63H
(YE)
CN2
(RD)
7
1
7
F3
F4
2
1
4
21S4
2
S/N1 R/L1
3
1
CNAC1
(WH)
3
1
CNAC2
(RD)
EI
BK
E3
BK
7
CN2
(RD)
E4
BK
TBL2
A C L
18
1 MODEL SELECT
*
The black square ( ) indicates a switch position.
MODEL SW6 SW5-6
ON ON
75V
OFF OFF
1 2 3 4 5 6 7 8 1 2 3 4 5 6
2 SW5 -1 to 5 : Function Switch
*
*1 *1
5
1 C N M 14
(WH)
CNDM
(WH)
CN4
(WH)
1
1 2
2
3 1 3 1 3
21S4 SV1/CH SV3/SS
(GN) (GY) (WH)
L N S1 S2 S3
POWER SUPPLY TO
~/N 230V 50Hz INDOOR UNIT
* 2
3
CY1
CY2
TB1