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USER INSTRUCTIONS
Operating:
How the air heater works:
Gas is burned by an atmospheric burner which fires
into a heat exchanger. The gas burner is controlled
by a double gas valve via an electronic burner
control, which is actuated automatically via external
controls i.e. a room thermostat and/or a time switch.
The burner is ignited by a spark igniter. When the
burner fires and warms the heat exchanger, the heat
is sensed by a thermally actuated fan control which
switches on the fan when the air temperature has
reached its preset operating level.
At the end of a heating cycle the burner is switched
off, the air circulation fan will continue to run until
the air heater has cooled to a safe condition.
Thereafter the fan will remain off until the next cycle
is initiated.
Safety:
1. Flame failure is detected by the ionization probe
which is the sensor and will immediately result in
gas valve shut down.
2. Safety against overheating is assured by two
overheat controls. The first is an automatic
recycle control which protects against low air
flow i.e. clogged air ways, fan failure etc. The
second, which is set to a higher level than the
first one, is a control which locks out and
switches off the burner in the event of gross
overheating for any reason. Manual intervention
is necessary to reset this control device.
Resetting of the automatic burner control may
also be required.
3. The location of the air heater should be
maintained at normal atmospheric pressure.
Changes to the building after air heater
installation, should have regard to the heating
installation, i.e. structural changes causing
excessive draughts from doors, windows etc.
Other air handlers and installation of air
extraction equipment which may cause a
negative pressure environment, can seriously
affect the operation of this type of air heater,
especially if combustion air supply is not ducted.
To light the heater:
1. Turn on the gas supply to the air heater.
2. Switch on the electricity supply to the air heater.
3. Ensure time switch (if fitted) is set to an 'ON'
cycle.
4. Adjust control/room thermostat to desired
temperature.
5. Air heater will light automatically when the room
thermostat calls for heat after about 30 sec.
6. If the appliance does not light:
a) check that the burner control does not require
resetting. An indicator light glows at the inside
panel of the appliance and on a remote control if
fitted. Reset by pushing reset/button inside the
appliance or the remote control.
b) check if thermal overheat control requires
resetting
7 If the thermal overheat control requires resetting
and doing so restarts the air heater, wait until
the appliance warms to thermal equilibrium, to
ensure the overheat control does not lock out
again. If it does and the temperature near the
heater is less than 30°C, then switch off the
appliance and call for service. If the temperature
is over 30°C, take appropriate action to reduce
the ambient temperature near the air heater.
Air circulation:
1. The space heating process is for air to be
circulated through the appliance whereby it gains
heat from a heat exchanger. The air is directly
discharged into the space to be heated. The air
is eventually re-circulated. Therefore it is very
important that an unobstructed path for the
circulation of the air will be maintained. This is
particularly important if the air heater has been
installed to blow through the wall between two
rooms.
2. Sometimes the air circulation fan of the
appliance is connected to a remote over-ride
switch. This enables air to be used for circulation
purposes when the air heater is not used for
heating purposes e.g. in summer.
To use this feature:
a) switch ON electricity
b) switch ON manual override switch, this may
be fitted as a feature on a remote composite
control.
Maintenance:
1. Maintenance and service must only be carried
out by appropriately qualified persons e.g.
"Corgi" registered undertakings.
2. It is in your interest to ensure proper service and
maintenance is carried out at a regular basis.
Periods between services are dependent upon
the local environment where the heater is
installed. All gas appliances should be serviced
at least once a year.
3. In case of any damage to the appliance, it must
be shut down completely and checked by an
appropriately qualified person.
4. In the event of difficulties in resolving any of
these matters, please do not hesitate to contact
the manufacturer or their official distributor.
NEVER SWITCH OFF ELECTRICTY SUPPLY TO THE AIR
HEATER WITHOUT FIRST CLOSING THE GAS
ISOLATING TAP
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