Worcester GREENSTAR 12Ri Instruction Manual page 37

2
E
C
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR Ri
8 716 115 168a (06/2008)
1
B
A
3
F
G
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
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 outlet elbow (E) free from the plastic
connection on the gas valve
Pull outlet elbow (E) forward to clear case
Removing Syphon
3.1 Undo plastic nut (F) on the syphon outlet
Drop condensate tube away from syphon
3.2 Remove two screws (G)
3.3 Pull the syphon towards you to release
from the connection and remove
Syphon
The syphon body is opaque so that
contents can be examined
Empty the contents and flush with clean
water
INSPECTION AND SERVICE
35