Page 11
Electrical Installation
The Schematic arrangement of the wiring within
the PulsaCoil Stainless is shown above.
The whole of the electrical installation shall be
designed and installed by a competent person
fully in accordance with the latest edition of the
Requirements for Electrical installations BS 7671.
The PulsaCoil Stainless appliance is provided
with two side entry 3kW immersion heaters and
has been designed to generally operate with an
off peak supply.
The lower immersion heater heats the whole of
the contents and is normally connected to the
off peak supply.
The upper immersion heater is positioned at
a level on the PulsaCoil Stainless to heat the
top 66 - 111 litres of the store - see Technical
Data Table on page 5. This is connected to the
unrestricted on peak supply and is switched
manually by the householder using the button
provided on the front of the appliance. When
pressed the on-peak boost will remain active
until the next time the off-peak becomes
available (unless switched off again manually).
The size of the appliance and the need to use
the on peak boost facility is reduced if a better
off peak tariff can be agreed with the electrical
supply company - see Model Selection Guide
on page 5.
Wiring The PulsaCoil With A Split Consumer
Unit I.e. Separate On And Off Peak Supplies.
Historically this has been the typical supply
method and no special wiring arrangements
are required.
DHW
Pump
Scale
Inhibitor
Fitted To
Hot Water
Outlet
L
N
E
L
N
E
ON PEAK
230V, 50Hz
20A
OFF PEAK
230V, 50Hz
20A
Immersion
(Off Peak)
Immersion
(On Peak)
PulsaCoil Stainless Schematic Wiring Diagram
DHW Outlet Sensor
PHE Inlet Sensor
Store Sensor
ON
OFF
ON
OFF
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
B16
Off Peak
Element
ON
OFF
20 Amp
MCB
B16
MCB
On Peak
Element
20 Amp
Double Pole
Isolator
Double Pole
Isolator
METER
Twin Tariff Restricted Off Peak Connections
Twin Tariff Consumer Only
RESTRICTED
OFF PEAK
SUPPLY
24 HOUR
DOMESTIC
SUPPLY
ON PEAK 3KW
OFF PEAK 3KW
Rate1
Rate 2
Boost
Controller
3kW
DESIGN
SYSTEM DETAILS
Summary of Contents for PulsaCoil PCS 120
Page 25: ...Page 25 APPENDIX APPENDIX B ...
Page 27: ...Page 27 NOTES NOTES ...
