6.APPENDIX
Appendix 3: Circuit diagram of the unit
EEV
5
FM
C2
BLK
BLU
RED
COMP
CC
CR
CS
BLK
RED
WHT
CS
CR
L
N
RED BLU
CC
L
N
L
L
N
NN
CC
N
1
3
2
4
5
6
7
8
01
L
Hydro-Pro+ Premium 7
TO POWER
SUPPLY
220-240V~/50Hz
L
BLU
Y/
G
BR
N
FS
4V
K1
N
L
RO
01
L
N
N
CN
6
RO
02
RO
03
RO
04
RO
05
RO
06
RO
07
RO
08
RO
09
PC4001
GN
D
AI
0
7
DI
12
DI
11
DI
10
DI
09
DI
08
DI
07
DI
06
DI
05
DI
04
DI
03
DI
02
A
I
12
(50)
AI
0
9
AI
0
8
AI
0
6
AI
0
5
AI
0
4
AI
0
3
AI
0
2
AI
0
1
5V
DI
01
NE
T
12V
DI
/D
O
2
DI
/D
O
1
A
I
11
(50)
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
CN
5
CN
1
AI
1
0
GN
D
FS
LP
FS
t
5K
IT
t
5K
t
5K
OT
t
5K
CT
AT
IT
IT
OT
OT
CT
CT
AT
AT
LP
LP
N
N
4V
N
K1
K1
C1
F-
H
L
N
1
2
L
K5
N
K5
Remote
in
R
e
mote
out
Re
mote
Co
ol
\He
at
N
N
K5
P
N
P
N
L
TO PUMP
Controller
AT Ambient temperature
COMP Compressor
CT Coil temperature
FM Fan motor
IT Inlet water temperature
LP Low pressure protection
OT Outlet water temperature
4V
4 way valve
FS Flow switch
HP Highpressure protection
K1 Relay ofcompressor
K5 Relay of pump
EEV Electronic expand valve
SUT Suction temperature
t
5K
SU
T
SU
T
SUT
WHT
ORG
F-
L
HP
HP
HP
24
Summary of Contents for + premium 10
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