BENSON HEATING LTD GUH100, Инструкция пользователя, Страница: 41 / 41

GUH RANGE PROPANE GAS FIRED UNIT HEATERS
Page 41 of 41
c) Depress and hold in control start button
whilst operating igniter until pilot light is
present
d) Hold in start button for at least one minute to
establish pilot - carefully release button
confirming presence of pilot
Warning
If the pilot fails to become established do not
attempt to re light for at least three minutes , if
the pilot is established continue as follows.
e) Close burner viewing port
f) Set the thermostat to the highest setting, and
the main burner will light then re-open the
viewing port and check that the main burner is
providing a good flame i.e. even, stable, and
conical.
Caution
If the fan fails to operate within approximately
two minutes and the heater goes to overheat it
will shut down through breaking the circuit to
the gas valve, the cause must be ascertained and
rectified before re-ignition.
Once the limit thermostat has tripped out it must
be manually reset to allow re-ignition to take
place.
g) Set controls as required
10.4 Ignition sequence automatic
versions
Automatic control is by way of a Satronic
controller (with automatic gas valve replacing
the manual standing pilot valve) used in
conjunction with a Satronic spark generator
(which replaces the piezo igniter as fitted to
manual units) , giving a maximum pilot
sequence of 15 seconds.
Flame supervision is via a flame sensor rod.
instead of the thermocouple as fitted to the
manual units.
The sequence is as follows: as per 10.3
The start signal will ignite the pilot, once the
flame proving has taken place the main gas
valve will supply the burner and burner ignition
will occur.
10.5 Stop procedure
(a) Set controller to off position.
(b) The fan motor will continue to run until heat
dissipation allows the fan and limit stat to shut
down the fan.
Caution
Do not use the main electrical isolator to turn off
the heater, to do so can cause damage to the heat
exchanger and combustion chamber, and
thereby invalidate the warranty.
10.6 Shut down procedure
(
a) Follow steps 10.5 (a) and (b), when fan
stops turn main electrical isolator off, and shut
gas supply cock
10.7 Ventilation only
(
a) Set heat/ventilate switch to 'ventilate'.
10.8 Lockout situations
If either the burner or the fan and limit stat go to
lockout, the lockout must be cleared manually
before the ignition sequence can be re-initiated.
Caution
Repeated or frequent lockouts must be
investigated and their cause determined by a
qualified and competent engineer.
10.9 Contact information
Further information is available from :-
Benson Heating
Ludlow Road
Knighton
Powys
LD7 1LP
Telephone 01547 528534
Facsimile 01547 520399
Benson Heating is a Division of Benson
Climate System