Technical information

Installation and servicing instructions strictly reserved
for qualified gas installers
31
9.2 Electrical connections - testing
Carry out preliminary electrical system checks
as below:
1. Test insulation resistance to earth of mains
cable.
2. Test the earth continuity and short circuit of
cables.
3. Test the polarity of the mains.
9.3 Pump Connection
Ensure that a separate pump supply cable is fed
to the boiler, see diagram 9.2.
Remove connection box, see diagram 9.1.
Route the pump supply cable through the strain
relief cable gland, connect to the connection box
as shown in diagram 9.2. Refer to diagram 12.2
for wiring colour code.
Refit the connection box to the underside of the
boiler using the two retaining screws.
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Diagram 9.2