Appendix
124
Installation instructions geoTHERM 0020051574_04
17
Electrical circuit diagram - VWS
vrnetDIALOG
L
N
PE
1
L
N
1
2
SCH
21
7
LN
8
21
AS
B
L
N
2
L
N
3
L
N
4
LN
6
L
N
5
12
VF2
12
RF1
12
VF1
-
+
BUS
12
EV
U
12
1xZP
Pressure
sensors
Pressure sensor
Heating circuit
Pressure sensor
Brine circuit
Low-pressure
sensor
High-pressure
sensor
Temperature sensors
AMU
Fuse
T4A/250 V
Fuse
T4A/250 V
Phase monitoringPhase monitoring
brown
grey
black
L1
L2
L3
DCF
O
T
AF
DCF
/AF
N
L
ZH
N
On
Of
f
LP
/UV 1
N
L
SK2
-P
N
L
SK2
-P
N
L
HK2
-P
N
On
Of
f
HK2
12
SP
blue
brown
yellow-green
blue
brown
yellow-green
blue
brown
yellow-green
brown
yellow-green
orange
orange
red
black
blue
grey
black
black
white
white
L1
L2
L3
Sta
rt
-u
p
curr
ent limit
er
c
o
nt
act
or
T1
T2
T3
A1
A2
L1
L2
L3
Pr
ot
ect
or
c
o
nt
act
or
Brine pump
A1
T2
T3
A1
A2
A2
L1
L2
L3
Ext
ernal
aux. he
at
er
c
o
nt
act
or
T1
T2
T3
A1
A2
PE
brown
grey
black
white
black
orange
L1
L2
L3
Co
n
tro
l
c
o
nt
act
or
C
ompr
e
s
s
or
T1
T2
T3
A1
A2
L1
L2
L3
Pr
ot
ect
or
c
o
nt
act
or
C
ompr
e
s
s
or
T1
T2
T3
A1
A2
brown
grey
black
yellow-green
L3
L2
L1
PE
Compressor
orange
black
orange
blue
M1
T2
M2
T1
brown
grey
brown
grey
black
brown
grey
black
black
black
black
orange
orange
white
white
yellow
yellow
brown
grey
black
brown
brown
grey
black
grey
black
L
N
PE
L
N
PE
L1
TOP-S40/7 1~
Brine pump
2
N
1
PE
L
N
PE
SS
L
N
PE
L3
N
PE
L2
L1
L3
N
L3
L2
L1
N
PE
L3
L2
L1
N
PE
Ext
ernal auxiliary he
at
er
(t
o be fit
ted on-sit
e
)
He
ating cir
c
uit
pump (
to be
fit
ted on-sit
e
)
Primary
mains supply
3
00 x 400 V PEN
Brine
swit
ch
(to
b
e
fit
ted
on-sit
e
)
blue
blue
blue
blue
black
grey
brown
black
grey
brown
yellow-green
blue
brown
black
grey
blue
black
blue
yellow-green
brown
brown
brown blue
grey
brown
black
brown
blue
yellow-green
orange
orange
M
Brine mixing
v
alv
e
(t
o
be fit
ted
on-sit
e
)
p
p
High-pressure
switch
Low-pressure
switch
Start-up
current
limiter
L2
L1
L3
L2
L1
L3
X1
X2
X4
X3
black
black
17.3 Appendix,
Electrical circuit diagram VWS 220/2 - VWS
300/2