Electrical Requirements - Santon PowerPack Fitting Instructions Manual

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ELECTRICAL REQUIREMENTS

This appliance must be earthed.
3.6
3.7
The installation, supply cable and circuit protection must conform to the
latest BS7671 'Requirements for electrical installations' (IEE Wiring
Regulations).
3.8
The PowerPack heater must only be connected to a 230/240V ac supply.
3.9
Before making any electrical connections within the installation, make sure
that no terminal is live. If in doubt, SWITCH OFF the whole installation at the
consumer unit or switch fuse (where fitted).
3.10
The PowerPack heater must be connected to its own independent electrical
circuit.
3.11
Check that your consumer unit (main fuse box):
1. has a main switch rating of 80A or above.
2. has a spare fuse way which will take the fuse/mcb you need to
fit - see (Figure. 4). If so, you can wire the PowerPack direct to the spare fuse of
your consumer unit via a suitably rated isolating switch- (see Figure.4). Note
that not all consumer units will accept a 35/40/45A sized fuse.
3.12
If point 3.11, 1 and 2 are not achievable, the installation is not straight forward,
since it could involve installing a new consumer unit to serve the whole house
or just the PowerPack. You will need to call in your Regional Electricity
Company to check the circuit and make the connections to the meter or service
connector block. They should also check the earth bonding of items in the
vicinity.
A residual current device (rcd), formerly known as an earth leakage circuit
3.13
breaker (elcb), with a tripping current of 30mA must be incorporated in the
circuit.
A double-pole isolating switch rated at (30A for 7kW, 40A for 9kW, and
3.14
50A for 12kW), with a contact separation of at least 3mm in each pole, must be
incorporated in the circuit. This must have a mechanical indicator showing when
the contacts are open. An indicator lamp alone is not sufficient. Only cord
operated switches can be fitted in bathrooms.
7
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