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Page 10
1.0 DESIGN
1.3 SYSTEM DETAILS
A schematic arrangement of the wiring in the
ElectraMate is shown below.
To ensure efficient operation of the appliance
it is important that discussions take place with
the Electrical Supply Authority to ensure that
the best off peak supply/tariff is utilized.
When designing the electrical system reference
should be made to the latest issue of the IEE
Requirements for Electrical Installations and
the table on the next page to ensure that the
electrical supplies are adequate and that the
correct fusing/cable sizes are chosen.
This is particularly important in existing
properties, especially if these are blocks of
flats/apartments.
DHW
Pump
Boiler
Pump
Heating
Pump
Store
overheat stat
Boiler
overheat
stat
Appliance Control
PCB
PR1
PR2
25A
25A
3A
Fuse 1
Fuse 2
Fuse 3
L
E
N
Off Peak
Board
Off Peak
signal
supply
Main
supply
1 x 230VAC
50 Hz
1 x 230VAC
50 Hz
45 Amp
4.5 kW
4.5 kW
Summer/Winter
Switch
Store Sensor
DHW Sensor
PHE Sensor
N
L
E
< 1Amp
Programmable
Room Stat.
Dual element
electric flow
boiler
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