Worcester GREENSTAR UTILITY 32/50

REFITTING COMPONENTS
1 Slide side panels (R) and top support
bracket (L) together with control box (G)
along base rails and push to secure into the
retaining lugs.
 Secure side panel (R) with retaining screws
(S) on both sides.
2 Carefully replace the Manual Reset
thermostat (U), Automatic High Limit (T)
and CH Control thermostat (Q) phials into
the heat exchanger thermostat pocket.
 Refit split pins (P) to secure.
3 Carefully replace the flue thermostat (M) into
the flue hood and refit split pin.
4 Sterling burner:
Align burner combustion head (N) into
boiler housing tube with gasket (O) correctly
fitted.
 Push firmly down to compress the gasket (O).
 Tighten burner retainers (H) sufficiently to
ensure a good seal.
4aRiello burner:
Align burner combustion head (N) into
boiler housing tube flange (O).
 Secure with retaining nut (H).
 Tighten retaining nut sufficiently to
ensure a good seal.
IMPORTANT: Ensure the gasket is a good
seal between the burner combustion head
and the boiler housing to prevent flue gases
escaping from the combustion chamber
into the room.
5 RS flue only:
attach air duct and tighten clip (J) to
secure to the burner air intake box and the
burner air intake.
6 Plug burner lead (F) into control box (G).
REFITTING COMPONENTS
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR UTILITY 32/50 & 50/708 716
109 711B 07.2010
27
INSTALLATION
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