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icos - Users
Control of water temperature
The boiler controls the central heating radiator temperature to a
maximum of 82
0
C, adjustable via the CH thermostat knob (C).
Approx CH flow temperatures for the boiler thermostat settings
are:
Knob Setting Flow Temperature
o
C
o
F
Minimum 30 86
Maximum 82 180
To shut down the boiler
1. For short periods
Set the mains on/off switch (A) to OFF.
2. For longer periods
Set the mains on/off switch (A) to OFF. Switch the electricity
supply to OFF. For longer periods the entire system should be
drained, inlcuding the domestic hot water supply.
To relight the boiler
Repeat the procedure detailed in 'To light the boiler'.
Frost Protection
If no frost protection is provided and frost is likely during a short
absence from home leave the heating controls (if fitted) at a
reduced temperature setting.
For longer periods the entire system should be drained.
If the system includes a frost thermostat then,during cold
weather, the boiler should be turned OFF at the time switch (if
fitted) ONLY. The mains supply should be left switched ON, with
the boiler thermostat left in the normal running position.
Boiler Overheat Thermostat
This thermostat will shut down the boiler in the event of
overheating. Should this occur a fault code 'L' 'A' will be
displayed. Press the reset button (D) and the boiler will relight.
If the fault recurs turn off the boiler and consult a CORGI
registered installer or in IE a competent person.
Flame failure
Should this occur a fault code L- F will be displayed. Press the
reset button and the boiler will relight. If the fault recurs, turn off
the boiler and consult a CORGI registered installer or in IE a
competent person.
Condensate Drain
The condensate drain must not be modified or blocked.
Blockage of the condensate drain, caused by debris or freezing,
can cause automatic shutdown of the boiler.
If freezing is suspected and the pipe run is accessible an attempt
may be made to free the obstruction by pouring hot water over the
exposed pipe and clearing any blockage from the end of the pipe.
If this fails to remedy the problem the assistance of a CORGI
registered installer or in IE a competent person should be sought.
Escape of gas
Should a gas leak or fault be suspected contact your local gas
supplier without delay.
Do NOT search for gas leaks with a naked flame.
Cleaning
For normal cleaning simply dust with a dry cloth.
To remove stubborn marks and stains use a damp cloth and mild
detergent.
DO NOT use abrasive cleaning materials.
Maintenance
The appliance should be serviced at least once a year by a CORGI
registered installer or in IE a competent person.
CAUTION.
To avoid the possibility of injury during the installation, servicing or cleaning
of this appliance care should be taken when handling edges of sheet steel components.
Legend
A Boiler on/off switch
C CH thermostat knob
D Reset button
E LED
F Display
G Condensate drain
1 BOILER CONTROLS