Unit Dimensions; Choosing The Right Heat Pump; Heat Load Calculation; Varimax Output Rating - ESP Varimax I ASHP Installation And Operation Manual

3.2 UNIT DIMENSIONS

4.0 Choosing the right heat pump

4.1 Heat Load Calculation

Based on the local climatic conditions, construction features and
insulation levels, your system designer will calculate the heat load
and, therefore, the appropriate unit size for your building. ESP can
provide a heat load calculation that conforms to MIS 3005. For new
builds, the requirements of Part L of The Building Regulations (or
better) for insulation will help ensure that the heat load of the
dwelling is kept to a minimum. For existing buildings, insulation
should be improved as much as possible to minimise the heat load.

4.2 Varimax Output Rating

The Varimax I operating capability rating has been based upon the
test conditions set out in BS EN 14511 and you should choose your
unit according to the rated output. Please NOTE that BS EN 14511
rates unit output based upon 6/7°C ambient air temperature and
you must ensure that you size your unit based upon the conditions
stated in MIS 3005. Performance graphs are included in section 18.
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