Hamworthy Purewell VariHeat he Installation, Commisioning And Maintenance Instructions page 41

Figure 11.1 - Hot Surface Igniter and Flame Sensing Probe Positions
Figure 11.2 - Gas Valve Assembly ( model 65 he - 85 he shown for illustration)
HAMWORTHY HEATING LTD
531201103
Fan/Airbox Seal
532418003
Venturi Clamp
PUREWELL VariHeat he
532407002 Airbox
531201104 Venturi Seal
533001029 Baffle
532418002 Venturi
532403148 Closing Plate
36
531201105 Fan/Airbox O/Side Seal
533901497 Gas
Pressure Switch
533903037 Gas Valve
531403031 Spacer
500001155/F