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INSTALLATION
CENTRAL HEATING
Immersion Heater
The Immersion heater supplied with the Boilermate is a 3 kW 240AC version which
is supplied as a DHW back up heat source should your boiler fail at any time. The
product replacement code is SH003.
Check that the mains supply conforms to this, and all external wiring conforms to
the most recent revision of the IEE wiring regulations. The immersion heater is fitted
into the thermal store cylinder using an O-ring. After the unit is filled with water
check for leaks to determine if the O-ring has sealed and tighten carefully using
the appropriate tool. To prevent damage to the O ring do not use excessive force to
tighten the immersion heater.
The immersion thermostat has two terminals L and N. These should be connected
as shown in the diagram. It has been our experience that crimp terminals make
better connections. The immersion heater must be fully earthed (earth post) and
connected via a double pole isolator switch.
The immersion heater is supplied with a thermostat which has been tested for
operation in the thermal store and complies with the European directives for
Electromagnetic compatibility and radio interference. It is Rated at 20 Amp 250V
~AC. The thermostat supplied with this product is set to 75°C with a safety cut out
set at 90°C. The immersion heater thermostats incorporate a manual reset safety/
overheat cut out thermostat. Should this operate, investigate the cause before
pressing the red reset button labelled safety. If there is no apparent fault adjust the
control setting down slightly to prevent nuisance tripping. If another heat source is
used to heat the cylinder and this raises the water temperature excessively then the
overheat thermostat will trip.
Danger of electrocution: before making any adjustments to the thermostat
isolate the immersion heater from the mains electricity supply at the fuse spur
unit.
Thermostat
Immersion Heater Wiring
E
L
N
Summary of Contents for BOILERMATE OV PP
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