Introduction; How The Heat Pump Works; Tips And Advice To Follow When Using Your New Heat Pump - Dimplex A Class User Manual

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NTRODUCTION
Thank you for choosing a Dimplex Heat Pump. Dimplex A-Class is designed specifically to maximise year-round
heating system efficiency, no matter the weather conditions. Its high efficiency means lower running costs and a
faster payback for the homeowner.
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OW THE HEAT PUMP WORKS
The operation of the heat pump is shown in figure 1. A heat pump works on the same principle as a fridge, using a
refrigerant fluid which boils at a low temperature. Free energy is taken from the air to boil the refrigerant in the
evaporator coil (1), changing it from a liquid to a vapour. This low grade heat is upgraded by the compressor (2)
increasing its pressure, and consequently its temperature, to a useful high temperature. The heat is transferred to
your heating system by the condenser (3), where the refrigerant becomes liquid once again. The liquid refrigerant is
then expanded using an expansion valve (4) to a low pressure fluid before repeating the cycle.
60-80% of the heat generated by the heat pump comes from the free energy taken from the air, compared to 20-40%
generated by the electricity used to power the heat pump. The internal layout of the Dimplex A Class heat pump can
be seen in figure 2.
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IPS AND ADVICE TO FOLLOW WHEN USING YOUR NEW HEAT PUMP
Glen Dimplex heat pumps are designed with efficiency in mind. As a result of using our renewable technology rather
than combustion or fossil fuels, the hot water used to heat your home is heated gradually, which allows the system to
only use as much energy as is required. Because of this however, it will be necessary to set your new heating system
to heat water/rooms a little earlier than you would have had to set a traditional oil or gas heating system, in order to
allow ample time for the desired temperatures to be achieved.
When using a Glen Dimplex heating system, it is important to remember that if the space heating and domestic hot
water are set to come on at the same time using the timer function, the domestic hot water will take priority. If, for
example, you require both hot water and heating in the morning, it is recommended to use the DHW (domestic hot
water) function first, followed by the space heating, as the DHW takes longer to heat up initially, but the insulation
used on our cylinders ensures that hot water will stay hot for as long as possible.
F 1: R C
IGURE EFRIGERATION YCLE
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