Instruction manual

INSPECTION AND SERVICE
There is a special accessory kit available
specifically designed for cleaning the heat
exchanger. If required order 7 716 192 312.
To Clean the Heat Exchanger
1 With outer case and base panel removed and
the power isolated from the appliance,
remove the cover panel (A) by removing the
retaining screw (B).
2 Remove clip (C) from gas valve outlet.
 Pull gas outlet elbow (D) free from the plastic
connection on the gas valve.
 Pull gas outlet elbow (D) forward to clear case.
Cleaning Syphon
3 There is no need to remove the Syphon
Assembly to clean.
To drain debris from the syphon, release the
clips and remove the drainage cap (E) from the
bottom of the syphon.
Catch the debris and condensate from the
syphon into a suitable container.
Re-fit the drainage cap (E) to bottom of the
syphon.
1
A
B
Remove control retaining
screw
COMBUSTION TESTING MUST BE CARRIED
OUT BY A COMPETENT PERSON. IT MUST
NOT BE ATTEMPTED UNLESS THE PERSON
CARRYING OUT THE COMBUSTION CHECK
IS EQUIPPED WITH A COMBUSTION
ANALYSER CONFORMING TO BS 7927 AND
IS COMPETENT IN IT’S USE.
2
C
D
INSPECTION AND SERVICE
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR 12i/24i System
8 716 115 167b (03/2009)
40
E
3
SERVICING
& SPARES
IMPORTANT:
IF THE JOINT BETWEEN THE
AIR/GAS MANIFOLD AND THE HEAT
EXCHANGER IS DISTURBED THE
SEALING GASKET MUST BE
REPLACED.
AFTER COMPLETING THE
SERVICE OF THE APPLIANCE, THE
CO/CO
2
MUST BE CHECKED AND
SET TO THE LIMITS SHOWN IN THE
“SETTING THE AIR/GAS RATIO”