Glow-worm 30ci - Domestic Hot Water Heat Exchanger Replacement

55
4000123923-2
20 Replacement of Parts
Diagram 20.23
Diagram 20.22
IGNITION
UNIT
➜
➜
➜
➜
30ci Only
10231
11598
➜
➜
➜
DOMESTIC HOT WATER
PLATE TO PLATE HEAT
EXCHANGER
11599
20.33 Ignition unit, refer to diagram 20.22.
Before starting refer to the front of Section 20 Important
information.
• Remove the front panel, refer to Section 17.3.
• Lower the control panel, refer to Section 17.4.
• For ease of access remove the left hand side panel, refer to
Section 17.6.
• Disconnect electrical connections.
• Remove ignition unit securing screw.
• Pull upwards to release and remove the ignition unit from the
retaining slot.
20.34 (30ci Only) Domestic hot water plate to plate heat
exchanger
Before starting refer to the front of Section 20 Important
information.
• Remove the front panel, refer to Section 17.3.
• Lower the control panel, refer to Section 17.4.
• Drain down the boiler only, refer to relevant parts of
diagram 20.1.
• Unclip the central heating thermistor.
• Unscrew the heating flow pipe union nut, swing pipe forwards,
see diagram 20.23.
• Supporting domestic hot water plate to plate heat exchanger,
unscrew and remove two screws securing it onto pump
mounting and 3-way valve/bypass housing.
• Remove plate to plate heat exchanger from boiler.
• Fit replacement plate to plate heat exchanger.
Note: Plate to plate heat exchanger mounting screws are
offset to ensure correct fitting.