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3.3 Distance from your swimming pool
The heat pump is normally installed within a perimeter area extending 7.5 m from the swimming pool. The greater the
distance from the pool, the greater the heat loss in the pipes. As the pipes are mostly underground, the heat loss is low
for distances up to 30 m (15 m from and to the pump; 30 m in total) unless the ground is wet or the groundwater level is
high. A rough estimate of the heat loss per 30 m is 0.6 kWh (2,000 BTU) for every 5 ºC difference between the water
temperature in the pool and the temperature of the soil surrounding the pipe. This increases the operating time by 3%
to 5%.
3.4 Check-valve installation
Note: If automatic dosing equipment for chlorine and acidity (pH) is used, it is essential to protect the heat pump against
excessively high chemical concentrations which may corrode the heat exchanger. For this reason, equipment of this sort
must always be fitted in the piping on the downstream side of the heat pump, and it is recommended to install a
check-valve to prevent reverse flow in the absence of water circulation.
Damage to the heat pump caused by failure to observe this instruction is not covered by the warranty.
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