ID.: 17-16-20-2979-10
50
3.2018
13. Electrical Connection Scheme
1
Compressor - generator
12 Relay panel
2
Fan
13 Display
3
Electric heater
14 Electromagnetic valves
4
Safety thermostat
15 Fan connection pins
5
Fan capacitor
16 Optical converter
6
Pressure switch
17 High pressure switch relay
7
Temperature probe NTC - water
18 Additional heater connection pin
8
Temperature probe NTC - air
19 Power supply connection pins
9
Temperature probe NTC - evaporator
20 Contactor
10 Connection pins of additional source
21 Web module
11 Compressor capacitor
Figure 12: Electrical connection schematic
R
C
S
1
PE
U1
- L
U2
- N
Z -
2μF;400Vac
PE
U1
U2
Z
N
L
V1
V2
Q1
Q2
32 22 12
31 21 11
NTC
NTC
8
6
1.3
1.4
1.5
1.2.3
3.1
4
5
3.2
DIGITAL INPUT
P
res
sure
sw
itc
h 1
P
res
sure
sw
itc
h 2
D
I4
WATER
E
X
T.
SPUR
CE
IN
P
U
T
A
IR
E
V
A
P
O
R
.
D
IS
P
LA
Y
WEB
ANALOG INPUT
COMM.PORTS
PUMP
CONTACT
EXT.
INPUT
INPUT
230V
COMPR.
L N N L
EL.
HEATER
MAG.
VALVE
FAN
F
A
N
1
N
F
A
N
2
12
Q1
Q2
NTC
5
4
3
2
1
7
6
N L L N
8.1.2
14
13
12
11
10
9
8
6.
1
6.
2
6.
3
7.
1
7.
2
10.1
10.2.1
10.3
9.2
9.1
10.4
8.
2.
1
8.
2.
2
24.2
22
23
24.1
12.3
8.2.2
8.2.1
9.3
9.4
14.2
2
3
4
5
7
9
10
11
13
14
15
18
19
20
21
1.1.1
1.2.1
1.3
1.4
1.1.1
1.2.1
1.5
1.1.2
1.2.2
10.2.2
12.3
12.2
12.1
17
18
3
16
2 1
3 2 1
3 2 1
2 1
2 1
2 1
2 1
2 1
17
18
N
SEN.
EXT.
L
ADD.
N
L
/
/
2
2
~230V
N
L1
L2
L3
3N~400V
19
20
21
10.2.3
14.1
A2
A1
C
L
O
I
12
14
O
N
O
M
C
N
C
11
25
8.1.1
12.2
15.1
8.2
8.1
1
6
7
12
15
10
9
17
16
Summary of Contents for WP4 LF-502
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