O Potterson CF 20/35, Installation And Servicing Instrucnions

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FIG. 13. WIRING THE BOILER FOR A COMBINED GRAVITY HOT WATER/
PUMPED CENTRAL HEATING SYSTEM
Pull off the boiler thermostat knob. See FIG. 2.
Remove two screws securing control panel cover and remove cover.
Route a three core cable through the plastic bush in the rear of the control pan
el and the cable clamp as illustrated in
FIG. 13. Connect the cable to the boile
r input terminalsas follows:
Switched live on the GRAVITY DHW control circuit to terminal marked MAINS
‘SwL’
Neutral to terminal marked MAINS
‘N’
Earth to terminal marked MAINS ( )
Secure the cable within the clamp by tightening the two securing screws.
The pump should be connected to PUMPED CENTRAL HEATING CONTROL
circuit at the junction box.
Refit control panel cover and thermostat knob.
FIG. 14. FUNCTIONAL FLOW DIAGRAM