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25
– Turn on the gas supply.
– Turn the boiler control on, and to maximum. Check the
boiler lights.
– Set the boiler control to the required temperature for the
maximum boiler flow. Turning clockwise increases the set
point temperature.
– Make sure the external controls are fully operational and
the complete system is controlled correctly.
1.3.2 To turn the appliance off
The appliance may need to be switched off for short periods.
If required the boiler control may be rotated to the ‘OFF’ posi-
tion (completely anti clock wise) which will prevent the appli-
ance from operating in the event of a demand from any exter-
nal controls.
If the appliance is to be switched off for long periods the boil-
er control should be rotated to ‘OFF’ and the electrical supply
to the complete system should be isolated.
If the appliance is to be switched off for a prolonged length of
time during severe cold conditions then it is recommended
that the complete heating system and appliance is drained to
prevent freezing. A service engineer would normally be
required for this.
If a frost thermostat is fitted to the heating system, no drain-
ing of the system is required, leave the appliance switched on
at its minimum on position and turn any external timer con-
trols off. This will allow the appliance to operate via the frost
thermostat and prevent the system from freezing.
1.4
MINIMUM CLEARANCES
The following MINIMUM CLEARANCES must be available for
servicing the appliance:
1.5
ROUTINE SERVICING
To ensure continued efficient operation of the appliance, it is
recommended that it is checked and serviced as necessary
at regular intervals.
The frequency of servicing will depend upon the particular
installation conditions and usage but in general once a year
should be adequate. It is the law that any service work must
be carried out by a registerd person (C.O.R.G.I.).
1.6
GENERAL INFORMATION
1.6.1
Appliance overheat thermostat
The appliance is fitted with a safety cutout thermostat. In the
event of the appliance overheating this will prevent the appli-
ance from functioning.
If this occurs, both the overheat warning lamp and the ignition
lock out indicator will illuminate. Allow the appliance to cool,
depress the ignition-reset button and turn the rotary control
to ‘OFF’. Switch the electricity supply to the appliance off, this
will reset the overheat warning lamp. Switch the electricity
supply to the appliance on and reset the rotary control to its
original position. If the external controls are calling for heat,
the appliance will perform an ignition sequence and the burn-
er will light.
If the situation is repeated, turn off the electrical supply and
consult your installer or a service engineer.
1.6.2 Electrical supply
An interruption in the electrical supply whilst the burner is
alight may cause the overheat thermostat to operate. If this
happens and the electrical supply is restored whilst in this
condition, the warning lamps may illuminate after an ignition
sequence (refer to section 1.6.1). However should the electri-
cal supply be restored after the appliance has cooled, normal
operation will be restored.
1.6.3 Cleaning
Use only a damp cloth and mild detergent to clean the appli-
ance outer casing. Do not use abrasive cleaners. It is recom-
mended to clean the outer case when the appliance is cold.
1.7
SAFETY
It is essential that the instructions in this book are strictly fol-
lowed for the safe and economical operation of this appliance.
The appliance functions as a fan assisted balanced flue unit.
The flue terminal MUST NOT BE OBSTRUCTED under any cir-
cumstances. If damaged, turn off the appliance and consult
the installer, service engineer or gas supplier. If it is known or
suspected that a fault exists on the appliance it MUST NOT be
used until a competent person has rectified the fault.
WARNING: IF A GAS LEAK IS SUSPECTED OR EXISTS,
TURN OFF THE GAS SUPPLY TO THE APPLIANCE AT THE
GAS SERVICE COCK. DO NOT OPERATE ANY ELECTRICAL
SWITCHES. DO NOT OPERATE ANY ELECTRICAL APPLI-
ANCES. OPEN ALL WINDOWS AND DOORS. DO NOT
SMOKE. EXTINGUISH ALL NAKED LIGHTS. CONTACT THE
GAS SUPPLIER IMMEDIATELY.
mm
in
ABOVE THE APPLIANCE CASING
200
8
AT THE R.H.S.
5
1/4
AT THE L.H.S.
5
1/4
BELOW THE APPLIANCE CASING
100
4
IN FRONT OF THE APPLIANCE
450
18
All descriptions and illustrations provided in this manual have been carefully prepared but we reserve the right to make changes
and improvements in our products that may affect the accuracy of the information contained in this manual.
