Worcester Greenstar Ri - Setting the Gas; Air Ratio; Preparing for Gas Ratio Adjustment; Setting Mode Switch to Maximum

1.1
1.2
A
B
1.1 Remove 3 screws (A) and cover (B) from
control box.
 Clipped inside the cover is a plastic tool
used to change the mode switch setting.
 Re-connect mains electrical supply.
1.2 Using the tool set the mode switch to
maximum.
 The power indicator will flash and the boiler
will stay in this mode for 15 minutes if no
further change is made to the switch.
MAX
NORM
MIN
THE BOILER IS FACTORY SET. ADJUSTMENT
OF AIR / GAS RATIO IS ONLY REQUIRED IF
STATED IN THE SERVICING OR REPLACEMENT
PARTS SECTION OF THE MAIN INSTRUCTIONS
SETTING THE GAS / AIR RATIO
ISOLATE MAINS ELECTRICAL
SUPPLY AND REMOVE OUTER
CASE AS SHOWN IN THE
INSTALLATION, COMMISSIONING &
SERVICING INSTRUCTIONS
SETTING THE GAS / AIR RATIO
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER BOSCH GREENSTAR Ri
8 716 109 699a (05/05)
38
SERVICING
& SPARES