Thermo plus 230/300/350
Terminal 58
Terminal 15
Terminal 30 (permanent plus)
Terminal 31 (ground)
Terminal 61 (D+)
5A
5A
5A
F5
F6
F7
1
10
11
Spheros
Spheros
Pre-selection
Vorwahluhr
timer
12
4
* Value acc. to UP, max. 25A, min. 7.5A because of DVW
Fig. 6:
System wiring diagram for the heater Thermo plus with pre-selection timer up to 85°C ambient temperature, legend see page 49
Up to 85°C ambient temperature
5A
5A
25A
F4
F3
F1
F2*
UPFA
Econ. setting
T. 61
2
8
FA
Coolant
temperature
sensor
Overheat
protection
C
T. 30
2
UP, DVW
2.5mm
1
T. 31
UP, DVW
2
2.5mm
2
1 - 4 must be all connected
T. 30
2
HG
2.5mm
3
T. 31
2
HG
2.5mm
4
2
0.75mm
HS
5
2
0.75mm
UPFA
6
Econ. setting
2
0.75mm
8
Kl. 61
2
0.75mm
7
SG 1589
2
0.75mm
BA+
9
FA+
2
0.75mm
10
P
UP +
1
UP
UP -
2
PT2000
1
PT500
2
ground
3
T
2
0.75mm
+
1
STT
2
0.75mm
2
2
S-Bus
0.75mm
3
4
G
Electrical connections
U
BM
V
W
ZFG+
1
ZFG SE
2
ZFG
ZFG-
4
MV+
3
MV
MV-
4
DVW+
1
DVW-
2
DVW
(optional)
51