gledhill benchmark BoilerMate A-Class OV Series Design, Installation And Servicing Instructions page 18

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Put Mode Rocker to 'Switch' position
Select HW Only
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1.0 DESIGN
1.3 SYSTEM DETAILS
'Switch'
The BoilerMate A-Class is supplied with 'Switch'
which provides a 6kW electrical emergency
back up in the case of failure of the main heat
source i.e. gas boiler.
This must NOT be used to provide hot
water only in summer if the main system is
working correctly.
Full details of the electrical requirements are
provided in Section 2.1 Site Requirements and
2.2 Installation.
'Switch' will be activated by moving the mode
rocker located on the front control panel into
the 'switch' position (see diagram opposite).
This replaces the function of the external boiler
with the internal electric emergency boiler.
The programming of space heating and store
charging is still controlled by the clock and the
hot water and central heating control rockers.
For emergency hot water only put the mode
rocker into 'Switch' position, the hot water
control rocker in the constant position and the
central heating rocker to off.
For emergency hot water and heating put
the mode rocker into 'Switch' position, the hot
water and central heating control rockers in
the constant position and the central heating
rocker to off.
In this situation the store will charge and the
space heating will be available at all times.
Once the fault has been resolved return to
normal boiler operation by moving the mode
rocker to the normal position and reset the hot
water and central heating control rockers to the
required position.
During Switch operation the central heating
can be operated in a timed mode if required
by setting the central heating control rocker
to timed and the clock/programmer to suit the
Select HW & CH
Page 18