Worcester GREENSTAR 24i junior Instruction Manual page 40

Remove control retaining
screw
40
INSPECTION AND SERVICE
2
E
C
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR 24 i junior/28 i junior
1
B
A
E
INSPECTION AND SERVICE
COMBUSTION TESTING MUST BE CARRIED
OUT BY A COM PETE NT PE R SON. IT M UST
NOT BE ATTEMPTED UNLESS THE PERSON
CARRYING OUT THE COMBUSTION CHECK
I S E Q U I P P E D W I T H A C O M B U S T I O N
ANALYSER CONFORMING TO BS 7927 AND
IS COMPETENT IN IT'S USE.
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"
To Clean the Heat Exchanger
There is a special accessory kit available
specifically designed for cleaning the heat
exchanger. If required order 7 716 192 312.
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 adjustment assembly (D) or outlet
elbow (E) free from the plastic connection on
the gas valve.
Pull gas adjustment assembly (D) or outlet
elbow (E) 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.
3
8 716 115 166b (03/2009)