Worcester Greenstar Ri Manuel d'instructions télécharger pdf (Page 40)

1.1

1.2

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.

 Ensure the boiler is powered up and

there is a demand from the external

controls.

 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 AIR / GAS RATIO

ISOLATE MAINS ELECTRICAL

SUPPLY AND REMOVE OUTER

CASE AS SHOWN IN THE

INSTALLATION, COMMISSIONING &

SERVICING INSTRUCTIONS

INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR Ri

8 716 115 168a (06/2008)

SETTING THE AIR/GAS RATIO

SERVICING

& SPARES

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Worcester Greenstar Ri Manuel d'instructions Page 40