Direction; Swimming Pool Water Chemistry; Heat Pump Winterizing; Restarting The Pump After Winter - Midas Mida Black 8 Handbuch

4. Direction

4.1 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:
pH
Free chlorine(mg/1)
TAC(mg/1)
Salt(g/1)
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 past the heat pump s water outlet, especially if the chemicals are automatically
added to the water.
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A check valve should also be installed between the outlet of the heat pump and this equipment in
order to prevent products from flowing back into the heat pump if the filter pump stops.

4.2 Heat pump winterizing

Important: failure to take the necessary precautions for winterizing 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 the freezing point, Evacuate all water from the heat pump 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 the water inlet and outlet coupler fittings of the heat pump and let the water drain out of the
unit.
4. Loosely reattach water inlet and outlet coupler fittings to the heat pump in order to prevent dirt
from setting into the conduits.
Note: these precautions should not be taken if you choose to use the built-in anti-frost protection.

4.3 Restarting the pump after winter

If you purged your heat pump for winterizing, you should undertake the following steps to restart it in spring:
1. Check first if there is no dirt in the conduits and if there are no structural problems
2. Check if the water inlet and outlet coupler fittings are adequately fastened to the heat pump
3. Start the filter pump to start the water flow to the heat pump. Set the by-pass again.
4. Reconnect the electrical power supply to the heat pump and turn it ON.
Min
7.0
0.5
80
'
15
Max
7.4
1.2
120
3