Glow-worm SwiftFlow 120 Servicing Instructions page 28

FRAME
SECURING
SCREW (2)
4.28 Pilot Viewing Window
Remove the pilot viewing window, secured with two
screws. When fitting a new window use the gasket
provided, see diagram 4.23.
4.29 Inner Cover Case Seal
Remove the old seal, clean out the old adhesive.
Glue the new seal into place, make sure that there are no
breaks in it.
4.30 Air Pressure Switch
Remove the flue collector, refer to Section 2.2.
Disconnect the three electrical connectors at the air
pressure switch, see diagram 4.24. Remove the flexible
tubes from the switch. Remove the air pressure switch,
secured with two screws.
When replacing the tubes to the air pressure switch make
sure that the forward (clear) tube from the air pressure
switch connects to the tee on the incoming air
sensing tube.
The rear most (coloured) tube connects to the fan
pressure sensing tube.
When reconnecting the electrical cables refer to
diagram 4.11.
4.31 Air/Gas Ratio Sensing Venturi
Remove the fan assembly and flue collector, refer to
Section 2.2.
Disconnect the tube nut and screw to release the sensing
venturi, see diagram 4.25.
221045A
Supplied By www.heating spares.co Tel. 0161 620 6677
4 R e p l a c e m e n t o f P a r t s
GASKET
GLASS
Diagram 4.23
28
CLEAR
GREY
AIR
PRESSURE
TUBES
SCREW
SCREWS (2)
AIR PRESSURE
SWITCH
VIOLET
ELECTRICAL
CONNECTORS
RED
RED
Diagram 4.24
VENTURI
TUBE
NUT
Diagram 4.25