Supplied By www.heating spares.co Tel. 0161 620 6677
17
Installation Instructions - Page 17
FIG. 24 ROUTING OF ELECTRICAL WIRING
Following the pump manufacturer’s instructions connect the
pump supply wires to terminals marked PUMP L, N,
on
the boiler terminal block. Route the cable through the
plastic bush in the rear of the control box as illustrated in
FIG. 24 and secure, using the cable clamp.
Route a four core cable through the plastic bush in the rear
of the control box and the cable clamp as illustrated in FIG.
24 and connect it to the boiler input terminals as follows:—
Fully Pumped Systems.
Permanent live to terminal marked MAINS ‘L’.
Neutral to terminal marked MAINS ‘N’.
Earth to terminal marked .’
’ adjacent to cable clamp.
See NOTE.
Switched live from external controls to terminal marked
MAINS ‘SwL’.
If there are no external controls fitted connect the SwL
terminal to permanent live in the junction box.
Gravity Domestic Hot Water/Pumped Central
HeatIng Systems.
Switched live from external gravity domestic hot water
control circuit to terminal marked MAINS ‘SwL’. Switched
live from external pumped central heating control circuit to
terminal marked MAINS ‘L’.
Neutral to terminal marked MAINS ‘N’.
Earth to terminal marked ‘
’adjacent to cable clamp.
See NOTE.
If there are no external controls fitted connect the SwL and
L terminals to permanent live in the junction box.
NOTE:
Ensure that the earth conductor is longer than the L, N &
SwL from the point of anchorage, so that the current
carrying conductors become taut before the earth
conductor if cable is pulled out of the cable clamp. When
the wiring has been completed close the control box and
replace the securing screw.
FITTING SIDE INFILL PANELS
If required, the gap between the casing sides and rear wall
can be closed off using the infill panels supplied.
Ensure the casing surface is FULLY CLEAN AND DRY.
Remove the protective backing paper from the adhesive
strip on the infill panel, carefully align and press into place,
applying FIRM EVEN pressure down the FULL LENGTH of
contact area between panel and case. If conditions are
near freezing, the boiler case should be warmed prior to
application of the infill panel.
FIG. 25
