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8.0
Installation – page 21
8.8
Making The Electrical Connections
WARNING: This appliance must be earthed
1.
The electrical connections are on the right hand side of
the unit inside the electrical box.
2.
Undo the two screws securing the electrical box cover
and remove the cover (Fig. 31).
3.
Undo the two screws securing the SL,
clamp and place to one side (Fig. 32).
4.
If fitting an integral programmer kit please refer to kit
instructions at this stage.
5.
If necessary the output of the boiler can be increased to
100,000 Btu/h.
a)
Draw the control PCB forwards out of the electrical box
(the control PCB is the right hand board).
b)
Pull off the two jumper connections at the top rear
corner of the PCB (Fig. 32a).
c)
Replace the PCB and continue with the installation.
6.
Route the incoming electrical cable/s through the
grommet in the support bracket. This will prevent
damage to the cable (Fig. 31a).
7.
Lay the cable through the cable clamp to gauge the
length of cable required when it is connected to the 4-
way terminal block (Fig. 32).
8.
Connect the (S/L), (N) and (
terminal block and refit the cable clamp (Fig. 33).
9.
The pump can be wired directly to the system controls
or to the P/F connector on the boiler. For full TRV
installation refer to section 6.1.
10. The P/F connection should only be used on a full TRV
system without a bypass.
11. Check the electrical installation for; earth continuity,
short circuits, resistance to earth, correct polarity and
fuse failure.
12. Replace the electrical box cover and secure.
, N, PF cable
) wires to the 4-way
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