37
geoTHERM exclusive VWS 0020051614_00 installation instructions
6.5
Controller PCB at a glance
1
LL
L
L
L
1
L
NNNN
N
2
N
2
1
2
1
LN
23
4
5
S
C
H
6
7
8
AS
B
NN
Au
f
Zu
L
N
12
12
12
12
12
12
DCF
O
T
AF
-
+
Au
f
Zu
ZH
N
L
ZP
N
L
SK2
-P
N
L
HK2
-P
HK2
VF2
RF1
VF1
SP
BUS
DCF
/AF
E
V
U
1xZP
LP
/UV 1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
21
33
32
31
30
29
28
27
26
25
24
15
16
18
17
19
22
23
20
Fig. 6.7 Controller PCB
Key to Fig. 6.7
Upper connection terminals
1
<ZH>
Electric auxiliary heating
2
LP / UV 1 3-port diverter valve for hot water generation
3
<ZP>
Circulation pump for hot water
4 <SK2-P>
optional: Stop valve for heating circuits without
cooling (see Chapter 6.6.2)
5 <HK2-P>
External (second) heating circuit pump
6 <HK2>
3 way valve cooling
7
VF2
External flow sensor
8 RF1
Unused
9 VF1
Unused
10 SP
DHW cylinder temperature sensor
11 BUS
eBUS
12 DCF / AF Outside temperature DCF signal
13 EVU
EVU contact (ripple control signal from power com-
pany)
open: compressor operation permitted
closed: compressor operation blocked
14 1xZP
Contact for non-recurring request for the
circulation pump, e. g. via pushbutton
PCB components
15 eBUS/vrDIALOG
16 eBUS address rotary switch, set to "1" (factory setting)
17
Fuse T 4A/250 V
18 Check LED for power supply (lights green if OK)
19
Fuse T 4A/250 V for brine pump
20 Monitoring for starting current limiter
21
Controller plug (User Interface)
22 Sensor connection plug 1
23 Sensor connection plug 2
Lower connection terminals
24 ASB
Starting current limiter
25 8
Compressor
contactor
26 7
Pressure
switch
27 6
(not
connected)
28 SCH
Accessories brine pressure switch
29 5
Brine
pump
30 4
Power supply circuit board
31
3
Internal heating circuit pump
32 2
unused
33 1
Brine mixer valve
The controller PCB has a protective cover plate which
has cut-outs for the eBUS/vrDIALOG (Item
15
) connec-
tion, as well as for the power supply LED (Item
18
).
The cover plate must be removed to change the fuses,
Items
17
and
19
.
Electrical installation 6
Содержание geoTHERM exclusive
Страница 91: ......
Страница 92: ...0020051614_00 GB 102008...