DORCHESTER DR-RS 105, Инструкция по установке, наладке и обслуживанию

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Installation
34 Instruction manual DR-RS
3
is
In preparation, first remove the protective cover from the control column:
•
Undo the 4 screws
1
and remove the protective cover
2
from the electrical
section. The connection block
3
is now visible.
n
Remark
Refer to A Electrical diagram DR-RS for the connection of electrical
components.
3.10.3 Mains
The water heater is supplied without a power cable and isolator.
n
Remark
In order to receive electrical power, the water heater has to be connected to
the mains by means of a permanent electrical connection. A double pole
isolator with contacts gaps of at least 3 mm must be fitted local to the water
heater. The power cable must have cores of at least 3 x 1.0 mm
2
.
1. Feed the power cable through the metric strain relief on the top of the control
column.
2. Connect earth (
A
), phase (L
1
) and neutral (N) of the power cable to
terminals 1 through 3 of the connection block as indicated in Table 3.10 .
3. Tighten the strain relief so that the cable is clamped.
4. If you do not need to make any more connections, then fit the protective
cover back on the control column.
Figure 3.10 Connection block (connections 1 through 10 explained in
Table 3.10 )
IMD-0362
2
3
1