User Instructions
8
User Instructions
You may have to wait for the boiler to
cool down before the button will
reset. If this condition repeats,
contact your Service engineer.
Check the system pressure and
re-pressurise as necessary before
attempting to reset the overheat
thermostat. Refer to Sealed central
heating system in these instructions
for details on re-pressurising the
system.
Ventilation - Always ensure that the
boiler has adequate ventilation. Any
ventilation openings in the boiler casing
must not be obstructed. Periodically
check that they are clear. Do not attempt
to ‘box in’ the boiler or build a
compartment around it. Do not place
any combustible material on or around
the boiler.
Flue terminal - The flue terminal must
not be obstructed or damaged. In
severe conditions check that the
terminal does not become blocked with
snow. Do not place any combustible
material on or around the flue terminal.
Frost Protection - Your boiler is fitted
with a pre-set internal frost protection
thermostat. Should either the air
temperature around the boiler, or the
water temperature within the boiler, fall
to below 5°C then this thermostat will be
activated. The boiler will then operate
briefly to prevent it from freezing. Your
boiler may also be fitted with a remote
frost protection thermostat; check with
your installer. If you are intending to be
away for a long period, the boiler and
system should be drained. Contact your
Service engineer for draining and filling
the system.
Cleaning and servicing - Lightly wipe
over the case with a damp cloth and a
little detergent. Do not use abrasive
pads or cleaners. You should have your
boiler serviced at least once a year to
ensure safe and efficient operation.
Contact your Service engineer for further
details.
Failure of electricity supply - If the
electricity supply fails, the boiler will not
operate. It should relight automatically
when the supply is restored.
!
NOTE
The time and on/off settings on a 7-
day or 24-hour timer or a 2-channel
programmer may need to be reset
after a power failure.
The Grant Programmable Room
Thermostat and Wireless
Programmable Room Thermostat are
battery powered and will be
unaffected by a power failure.
Electricity Supply
The boiler requires a 230/240 V - 50 Hz
supply. It must be protected by a 5 Amp
fuse.
The Vortex boiler contains electrical
switching equipment and must be
earthed.
Electricity Connection
The Vortex Pro Combi boilers can be
serviced from the front, but it is
preferable for any worktop above the
boiler to be removable to provide the
best access for servicing.
!
NOTE
!
WARNING
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