Installation - Benchmark Gledhill BoilerMate 2000 125 Design, Installation And Servicing Instructions

1.0 DESIGN
1.3 SYSTEM DETAILS
'Switch'
The BoilerMate 2000 can be ordered with
the option of 'Switch' which provides a 9kW
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.
If Switch is ordered the electrical supply will
need to take account of the increased load.
Full details of the requirements are provided
in Section 2.1 Site Requirements and 2.2

Installation.

Otherwise the design requirements are the
same as the standard appliance.
Switch can operate on 'hot water'or 'hot water
and heating' modes. In the former only hot
water pump and electric heating element are
energized. In the latter the heating system
pump is also energized. This means that
the heating will be on permanently unless
manually switched back to the'hot water'only
position.
It also means that wherever Switch is
being used the normal domestic hot water
temperature controls are over-ridden. Initially
dependent on the flow rate/store temperature
hot water can be delivered at the tap at
temperatures as high as 75°C. A warning
notice to this effect is provided in the front
of the appliance.
However,once the initial store temperature has
been reduced the Switch element thermostat
will reduce the temperature at the tap to no
more than 65°C. Full details of how to operate
the system are provided on a label fixed to the
front of the appliance.
Page 17