Appendix 6: Circuit diagram of the unit
6.
APPENDIX
22
FM
C3
BLK
BLU
RED
L1 L2
BLK WHT
L2
L2
L2
1
3
2
4
5
6
7
8
01
L2
CC
COMP
CS
2
1
5
KS
C2
KS
CR
BLK
WHT
RED
CS
L2
L1
CC
CS
2
CS
KS
L22
CS
CR
CH
K1
L1
L2
L11
L2
L2
CC
CC
C1
CC
CC
CS
CS
CR
TO POWER SUPPLY
208-230V~/60Hz
L1 L2
L21
FS
HP11
LP
BLU
Y/
G
BRN
PASRW040
TC
12V
Controller
3
4
3
4
REMOTE IN
3
4
FS
FS
LP
LP
t
5K
t
5K
t
5K
t
5K
IT
IT
OT
OT
AT
AT
CT
CT
OUT3
OUT4
OUT5
AC-N
3
4
3
4
CN19
GND
AI05
GND
AI04
GND
AI03
GND
AI02
GND
CN1
CN2
12V
NET
GND
DI01
GND
DI02
GND
DI03
GND
DI04
GND
DI05
GND
AI01
GND
DI06
GND
CN6
AI06
CN16
GND
+5V
OUT1
OUT2
PC1001
RED
2
2
L1
K1
HP11
HP11
KM1
L22
L22
L22
L22
L1
L1
L2
L
2
KM1
L1
4V
4V
L2
4V
˖
4 way valve
AT
˖
Ambient temperature
COMP
˖
Compressor
CT
˖
Coil temperature
FM
˖
Fan motor
IT
˖
Inlet water temperature
LP
˖
Low pressure protection
OT
˖
Outlet water temperature
FS
˖
Flow switch
TC
˖
Transformer
KS
˖
Relay coil of compressor start
CH
˖
Compressor heater
KM1
˖
Contactor of compressor
HP11
˖
High pressure protection( 4.0Mpa)
HP12
˖
High pressure protection( 4.4Mpa)
L2
L2
L2
L2
t
5K
SUT
SUT
EEV
5
Y/G
Y/G
Y/G
Dry Contact
1
2
1
2
HP12
1
2
K1
L2
L2
K1
t
50K
ET
ET