Frost Precautions - Potterton 30e User Manual

carried out by a trained service engineer, and it is suggested that an annual contract be arranged. Contact your local
Potterton regional service office, or return the post card attached to these instructions for further information.
The outside of the boiler casing can be wiped when necessary using a damp cloth to remove finger marks etc. Do
not use an abrasive material.

FROST PRECAUTIONS

If your boiler has to be shut down for several hours or more during very cold weather, it may be in danger of
freezing, due to its position, i.e. it may be in an outhouse or part of the pipework may be vulnerable to frost. To
avoid freezing, various methods of protection can be used:-
1. Insulation of the boiler and pipework, taking care not to impede any ventilation air supply.
2. Completely draining the water system if not in use for long periods. On a sealed system, draining and refilling
must be carried out by a competent person, e.g. your Service Engineer.
NOTE:
Although the system can be emptied by using the drain-off taps installed in the pipework around the system,
to empty the boiler, it is necessary to remove the drain cap situated within the boiler case. This operation is
best left to your Service Engineer.
3. Having a low thermostat fitted. Seek advice from your installer.
NOTE:
If a low limit thermostat has been fitted, it cannot operate if the boiler is completely shut down and the
electricity supply turned off. In this instance, the system will have no protection and one of the other methods
must be used.
4. Where no frost protection is provided it may be necessary to run the boiler at low thermostat settings at times
when it would normally be shut off.
Potterton International Limited, Portobello Works, Emscote Road, Warwick.
Northern/Scottish Regional Service Office 8 The Gills, Otley , Leeds LS21 2AH 0943-465666
South Western/Midland Regional Service Office Brooks House, Coventry Road, Warwick CV34 4LL 0926-
496896/7
South Regional Service Office 10 Hardwicks Way, London SW18 4AJ 01-870 4131
Parts Department Brooks House, Coventry Road, Warwick CV34 4LL 0926 493471
5