Installation - Electrical; Important Notes; Off Peak And 24 Hour Electrical Supply - Heatrae Sadia ELECTROMAX Installation & Servicing Instructions Manual

6.0 Installation - Electrical

6.1 Important Notes

All wiring must be carried out in accordance
with the current IEE Wiring Regulations.
The Electromax electrical installation must
be carried out by a competent person in
accordance with any relevant regulations
in force at the time of installation and the
requirements of these instructions to ensure
correct operation.
The main incoming electrical supply to the
property must be of sufficient current rating
and voltage for the Electromax and any other
electrical requirements for the property.
The consumer unit must be fitted with a
double pole RCD with a trip sensitivity of
30mA capable of breaking the full load
current to BS EN 61008:1994.
A correctly rated MCB must be used in
the supply to the Electromax boiler and
immersion heaters. The MCB to the boiler
must be rated at 45A. The MCB to each
immersion heater must be rated at 16A. It
may be necessary to fit a blanking plate
between the 45A MCB and other MCB's in the
consumer unit to provide ventilation, check
with the MCB manufacturer.
Electricity Supplier
Midlands
Norweb
Southern
South Wales
South Western
Yorkshire
Scottish Hydro
Manweb
Table 2 Economy 10 Providers
ECONOMY 10 PROVIDERS
Off-Peak Times
midnight - 5.00am
midnight - 5.00am
midnight - 5.00am
midnight - 5.00am
midnight - 5.00am
midnight - 5.00am
4.30 - 7.30am
4.30 - 7.30am
Each circuit must incorporate an isolating
switch which must have a minimum contact
separation of at least 3mm in all poles.
3 amp protection has been provided for the
thermostat 'L' and the pump 'L'. The fuses
are located in the control assembly.
6.2 Off-Peak and 24 hour Electrical
Supply
To obtain optimum performance and lowest
running costs from your Electromax unit it
should be connected to an Off-Peak electrical
supply. The "Economy 10" tariff, which is
available from most major electricity suppliers,
is recommended. Table 2 shows the suppliers
that offer "Economy 10" and the times that "off
peak" electricity is supplied. Other Off-Peak
tariffs may be suitable, consult the Heatrae
Sadia Specification Team or your electricity
supplier for further advice.
With an Off-Peak electrical supply there will
be two sets of electrical outputs from the
consumer unit or two separate consumer
units. One will supply the circuits that have a
dedicated off peak use (such as night storage
heaters or off peak water heater), the other
will provide a 24 hour supply to circuits in
use throughout the day (such as lighting,
sockets, etc.).
1.00 - 4.00pm 8.00 - 10.00pm
1.00 - 4.00pm 8.00 - 10.00pm
1.00 - 4.00pm 8.00 - 10.00pm
1.00 - 4.00pm 8.00 - 10.00pm
1.00 - 4.00pm 8.00 - 10.00pm
1.00 - 4.00pm 8.00 - 10.00pm
1.00 - 4.00pm 8.30 - 12.30pm
1.00 - 4.00pm 8.30 - 12.30pm
Installation & Servicing Instructions
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