Glow-worm Ultracom2 cxi - Manual (Page 23)

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INSTALLATION
• Do not use cable greater than 10 mm in diameter for the
electrical connections.
All system components must be of an approved type.
• Do not interrupt the mains supply with a time switch or
programmer.
The boiler is suitable for installation in bathroom zones 2 and 3.
11.1 Access to main board
2
1
4
3
Key
1 24 V access cover
2 Terminal blocks for 24 V connection
3 Terminal blocks for 230 V connection
4 230 V access cover
11.2 Main board
30mm
max
1
2
3
Key
1 Connector
2 Electrical wires
3 Insulation
When you connect the electrical wires to a connector on the
electronic board:
• Keep a distance of a maximum of 30 mm between connector
(1) and the start of the insulation (3).
• If using single core wires are used(2) ensure that the are
wrapped together in an insulating sheath.
• Fix the cables in the cable-clamp on the eBox.
11.3 Electrical wiring
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.
24
V
1
Key
1 Power supply cable
• Connect the appliance's power cable to the 230 V single-
phase network + earth.
• Connect the appliance correctly to the live and neutral
connections.