Glow-worm Ultrapower 100sxi Installation And Servicing page 46

EXPANSION
VESSEL
CLAMP
CH PUMP
Top view of CH pump
PRIMARY
EXPANSION
VESSEL
46
14 Replacement of Parts
SECURING
SCREW (2 OFF)
CH PUMP
FLEXIBLE HOSE
CONNECTION
RETAINING
CLIP
RETAINING
BRACKET
FLEXIBLE HOSE
CONNECTION
Diagram 14.7
SILENCER
HEAT
BRACKET
EXCHANGER
IGNITION
LEAD
IGNITER
UNIT
CLAMP
EARTH
LEAD
SECURING
SCREW (2 OFF)
14.13 Heating Expansion Vessel
For access, refer to section 14.1.
Drain the boiler heating circuit, refer to section 14.1.
Remove the retaining clip from the flexible hose at the central
heating pump, see diagram 14.7.
Remove the flexible hose from the pump, ensure the 'O' ring
on the connection is seated correctly before re-fitting.
Remove the expansion vessel clamp, see diagram 14.7.
Slide the expansion vessel forward and out from the retaining
bracket.
Remove the flexible hose union nut from the expansion
vessel. When re-fitting ensure that a new sealing washer
is fitted and that the elbow of the flexible connection faces
towards the front of the appliance.
14.14 Heat Exchanger
Refer to Manual Handling Operations, 1992.
For access, refer to section 14.1.
Drain the boiler heating circuit, see section 14.1.
Drain the boiler domestic water circuit, see section 14.1.
Disconnect the flue connection.
Remove the silencer, refer to section 12.2.
Remove the igniter unit electrical connections, refer to
diagram 14.2.
Refer to section 12.4 for removal of the fan, gas valve and
burner assembly.
SECURING
NUT (4 OFF)
SECURING
SCREW
(2 OFF)
CLAMP
Diagram 14.8