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Anti-freeze and anti-sieze modes
Provided the ON/OFF button is on (green light), the water pressure is adequate and the boiler has not shut down due to an
error, the anti-freeze and ant-sieze operations will remain active.
When the anti-freeze comes on, one of two codes will be displayed with the snowflake pictogram
The two possible codes are 05 (pump anti-freeze) or 06 (burner anti-freeze).
05 (Pump anti-freeze):
When the boiler senses a temperature of 8°C or lower, the pump will run for 2 minutes, the
boiler will then check if the flow temperature is higher than 8°C. Should the temperature
still be between 3°C and 8°C the above process will be repeated a maximum of 10 times,
after this the burner will light and run until a temperature of 33°C is detected (see 06
Burner anti-freeze below).
06 (Burner anti-freeze):
When the boiler senses a temperature of 3°C or lower, the boiler will fire at minimum power until a temperature of 33°C is
achieved, the pump will run for 2 minutes after the burner is switched off.
Anti-sieze mode
The anti-sieze mode will activate the pump for 1 minute everytime the boiler has been inactive for 23 hours.
Note: The anti-freeze and anti-sieze modes will be automatically overriden as soon as there is a demand for heaing from the
room thermostat or cylinder thermostat.
The anti-freeze functions will only protect the boiler from freezing, to protect the Central Heating system it will be necessary to
leave the boiler powered, the Central Heating knob turned on and the room thermostat set to its anti-frost setting (usually
between 5°C and 10°C).
3. Maintenance
As with your car, your boiler will work more reliably and efficiently if regularly serviced. We recommend an annual service
check. The service history of the appliance will be marked in the Service Interval Record (Section 25).
4. Guarantee
The manufacturer`s guarantee is for 2 years from the date of purchase. The guarantee is voidable if the appliance is not
installed in accordance with the recommendations made herein or in a manner not approved by the manufacturer. To assist us
in providing you with an efficient after sales service, please return the guarantee registration card enclosed with the boiler with-
out delay.
5. Practical information
Cleaning the casing and control panel
Should it be necessary to clean the casing and control panel, do so only with a damp cloth, do not use any spray polishes or
cleaners.
Precaution to avoid freezing
We recommend that you contact your installer or local service centre for further advice on the actions to be taken to avoid the
system freezing (should the boiler be turned off at the mains isolator)
• CH system
Choose one of the following solution :
- 1) Drain the Central Heating system completely
- 2) Protect the Central Heating system with anti freeze chemical products and periodically check the concentration
- 3) Leave the Heating mode switched on and set the room thermostat to anti-freeze mode (between 5 and 10°C)
- 4) Leave your boiler in stand-by mode, the anti-freeze device will switch on the pump and the burner if necessary.
• DHW system
Turn off the main cold water supply and drain the cylinder.
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