Ground Source Heat Pumps
Ground source heat pumps are becoming very popular and the larger units require three phase supply.
The problem is that heat pump suppliers like to show the average electrical power over a year so as to produce a COP (co-efficient of performance) of around 4 (heat output = 4 x electrical input).
However, the phase converter must be able to power the heat pump at all times, including worst case conditions.
It is ESSENTIAL to obtain from the supplier, in writing, signed by a responsible person, the MAXIMUM electrical input power, excluding momentary start-up conditions. As this is the rating that is needed to in order to supply you with an adequately supplied Booster. Failure to do this will involve your Booster being potentially under-specified for the application causing it to fail.
We do not honour our guarantee or accept any returns if we have not received this signed statement from the manufacturer.
If you are in any doubt please call our technical team on 01258 837 266 – please have as much information to hand as possible.


