Astral Pool BPM400A, Инструкция по установке и эксплуатации

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Inst253 Astral Heat Pumps V07.13 6
During operation in weather below about 10 deg, ice may appear on the evaporator coil. An automatic
defrost mode will initiate. During a defrost cycle the compressor will continue to run however the
direction of the gas in the system is reversed so that the evaporator coil is heated. A ‘
whoosh ’ may be
heard as this occurs. The fan will continue to run in order to melt the accumulated ice. When the
evaporator temperature rises sufficiently to allow continued operation, the compressor will restart in
heating mode.
During this heated defrost mode, there may be visible water vapour in the airstream. This is normal
during cold weather.
CHEMICAL BALANCE
It is imperative that correct chemical balance be maintained in your pool and spa water, otherwise
corrosion of your heater may occur.
Corrosion due to chemically imbalanced water or excessive
sanitiser is detectable and will void warranty. Your local pool shop specialist or spa retailer can
advise correct chemical balance. Your water should be checked and maintained regularly by a pool water
professional. As a guide the following parameters may be used.
pH 7.6 to 7.8
Total Alkalinity 80 to 120 ppm
Calcium Hardness 150 ppm
You should test your water chemical balance at least on a weekly basis.
Excessive sanitiser can damage your heater. Chlorine should not exceed 3 ppm and bromine should not
exceed 5 ppm. Salt chlorinators, especially when used on spa pools or indoor or covered pools, can
easily produce excessive chlorine levels which will damage the heater internals.