Supplied By www.heating spares.co Tel. 0161 620 6677
17
Part No. 5000893
Replacement Of Parts
6. Replacement of Parts
1. When refilling, if water has been
drained from the system, turn on
all hot taps to purge air from the
system. Turn them off in
sequence starting with the tap
at the lowest level.
2. When replacing parts, re-
assemble in reverse order
unless otherwise stated.
This chart shows the steps to be
taken in order access a specific part
or perform a particular function. Use
this chart in conjunction with the
detailed procedures on the following
pages.
Start
Descale Heating Unit - 6.17
Remove Piezo Unit - 6.1
General Access/Main Burner -
6.2
Thermocouple & Electrode - 6.3
Pilot Injector - 6.4
Flame Failure Device - 6.5
Pilot Viewing Glass
& Seal - 6.6
Energy Cut-Off Device - 6.7
Pressure Relief Valve - 6.9
Remove Heating Unit - 6.15/6.16
Water Governor Venturi - 6.12
Descale & Regrease
Water Governor &
Push Rod - 6.10
Automatic Valve & Burner
Manifold Complete - 6.11
Thermostat Assembly - 6.13
Throttle Assembly - 6.14
Descale & Regrease
Mersey/Medway
Thames
IMPORTANT: THE FOLLOWING WORK SHOULD ONLY BE CARRIED OUT BY A COMPETENT PERSON.
Drain the Appliance - 6.8
