12
3.7.7 Switchover to alternative electric power
OC domestic heating units can be reconnected to
alternative power and voltage in the lower junc-
tion box.
OC 300 has 1 9 kW lower junction box, OC HT 300
and OC 360 have 2. 7.5 kW lower junction boxes.
For the last two, both junction boxes must be re-
connected to achieve the described effect. The
cable must be replaced by a qualified electrician.
Circuit diagram (A):
Output OC 300: 3 kW 1x230V.
Output OC HT 300 and OC 360: 2.5 kW 1x230V.
Wire (1) is not used in this arrangement, but should
not be removed. Wire (2) is used as a neutral wire
if 1x400V is wanted.
Circuit diagram (B):
OC HT 300 and OC 360: 5 kW 1x230V.
OC 300 cannot be connected to this power.
Wire (1) is not used in this arrangement, but should
not be removed. Wire (2) is used as a neutral wire
if 1x400V is wanted.
A
RESET
RE
SET
M2
1
2
3
4
THERM-O-DISC
1
2
RESET
RE
SET
M2
1
2
3
4
THERM-O-DISC
1
2
1
2
RESET
RE
SET
M2
1
2
3
4
THERM-O-DISC
1
2
RESET
RE
SET
M2
1
2
3
4
THERM-O-DISC
1
2
2
B
1
Wiring diagram - 1x230V / 1x400V
OC 300 LT: 3 kW / OC 300 HT+OC 360 LT: 2.5 kW
Wiring diagram - 1x230V / 1x400V
OC 300 HT+OC 360 LT: 5 kW
!
WARNING
Continuous voltage is present at the terminals in
the junction boxes. Before any electrical work is
done, the power supply must be disconnected
and secured against activation while the work is
in progress.
Содержание OC 300 HT
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