ProTeam PC15 - 5 Recommendations; Swimming Pool Water Chemistry; Heat Pump Winterizing; Restarting the Pump after Winter

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If the water temperature drops further, i.e. below 2°C (during long periods of frost), the heat
pump will also start running to heat the water until the temperature reaches approximately 3°C.
Once this temperature is reached, the heat pump will stop but the anti-frost protection will
remain active until conditions change.
5. Recommendations
5.1 Swimming pool water chemistry
Special attention should be paid to the chemical balance of the pool water. The pool water
values should always stay within the following limits:
Min. Max.
pH
7,0 7,4
Free Chlorine (mg/l)
-1,2
TAC (mg/l)
50 120
Salt (g/l)
- 3
Important: failure to comply with these limits will invalidate the warranty
Note: exceeding one or several limits can damage the heat pump beyond repair. Always
install water-treatment equipment (e.g. chemical dosing systems) after the water outlet
of the heat pump, especially if the chemicals are automatically added to the water (e.g.
automatic chemical dosing systems).
A check valve should also be installed between the outlet of the heat pump and the
water-treatment equipment to prevent products from flowing back into the heat pump if
the filter pump stops.
5.2 Heat pump winterizing
Important: failure to take necessary precautions for winterising can damage the heat
pump, which will invalidate the warranty.
The heat pump, filter pump, filter and conduits must be protected in areas where the
temperature can drop below freezing point. Evacuate all water from the heat pumps as follows:
1. Interrupt the electrical power supply to the heat pump
2. Close the water supply to the heat pump: completely close valves 2 and 3 of the by-
pass
3. Disconnect water inlet and outlet coupling fittings of the heat pump and let the water
drain out of the unit
4. Loosely reattach water inlet and outlet coupling fittings of the heat pump in order to
prevent dirt from getting into the conduits.
Note: these precautions should be taken if you choose to use the built-in anti-frost
protection.
5.3 Restarting the pump after winter
If you emptied the heat pump for winterising, follow the steps below to restart it in spring: