Worcester 18/25 Instruction Manual download pdf (Page 27)

ELECTRICS

INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR DANESMOOR UTILITY 18/25

8 716 106 256C (03/2010)

INSTALLATION

ELECTRICS

DANGER - 230V:

ISOLATE THE MAINS ELECTRICITY

SUPPLY BEFORE STARTING ANY

WORK AND OBSERVE ALL

RELEVANT SAFETY PRECAUTIONS.

IMPORTANT: OBSERVE ELECTRONIC

STATIC DISCHARGE PRECAUTIONS.

DO NOT TOUCH THE PCB CIRCUITS.

Access to 230V connections:

1Release scews (B) and remove cover panel

2Release screw (D) from cable clamp (E).

Pull inner clamp part (F) outwards.

Feed sufficient power cable (G) through the

cable clamp (E) and secure grip with screw (D).

Separate wires from cable end and strip to 6mm.

230V connections:

3Connect SWITCHED LIVE wire (Brown) to

terminal L.

Connect NEUTRAL wire (Blue) to

terminal N.

Connect EARTH wire (Green/Yellow) to

the terminal .

Route the power cable to the external connection

point avoiding any potentially hot surfaces

allowing sufficient cable to pivot the control box

into the service position. Open the control box

into the service position to check the cable length

and routing.

Any external device connected to the

boiler must take its power supply from

the boiler only and must NOT have a

separate supply.

See the following pages of electrical

diagrams for details of different systems.

Refit electric control panel cover:

Refit cover panel (C) to control box (A)

and secure with screws (B).

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Worcester 18/25 Instruction Manual Page 27

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