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Installation, Electrical connection, 1 electrical wiring – Glow-worm Ultracom hxi User Manual

Page 22: 2 pump wiring, 3 system controls

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0020107233_00 - 06/11 - Glow-worm

INSTALLATION

- 22 -

electrical Connection

WaRnInG:

This appliance must be earthed.

● This appliance must be wired in accordance with these

instructions. Any fault arising from incorrect wiring cannot be

put right under the terms of the Glow-worm guarantee.

● All system components must be of an approved type.

Electrical components have been tested to meet the

equivalent requirements of the BEAB.

● Do not interrupt the mains supply with a time switch or

programmer.

● Connection of the whole electrical system and any heating

system controls to the electrical supply must be through a

common isolator.

● Isolation should preferably be by a double pole switched

fused spur box having a minimum contact separation of

3mm on each pole. The fused spur box should be readily

accessible and preferably adjacent to the boiler. It should be

identified as to its use.

● A fused three pin plug and shuttered socket outlet may be

used instead of a fused spur box provided that it is not used in

a room containing a fixed bath or shower.

● The boiler is suitable for installation in bathroom zones 2

and 3.

9.1 electrical Wiring

Remove the electrical cartridge from the fittings pack.

Remove the securing screw to open the cartridge, see

diagram 9.1.

noTe: There are two screws supplied loose in the electrical

cartridge, these will be required to secure the cartridge into

the electrical interface housing.

Slacken the cable strain relief screws in the electrical

cartridge, see diagram 9.1.

Route the mains supply and system cables through the strain

relief and connect to the relevant plug , see diagram 9.2.

9.2 Pump Wiring

Ensure that a separate pump supply cable is routed through

the strain relief and connected to the relevant plug, see

diagram 9.2.

Slacken the cable strain relief and route the pump electrical

supply cable and connect as shown in diagrams 9.1 and 9.2.

9.3 System Controls

If you are fitting the Glow-worm Options Board Kit, please

refer to the instructions supplied with the kit for the system

wiring.

ELECTRICAL

CARTRIDGE

CABLE STRAIN

RELIEF

SECURING

SCREW

Diagram 9.1

13656

Diagram 9.2

13457