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How to Winterize an AquaCal® Swimming Pool Heat Pump

Summer sadly is coming to an end; this means it is time to get your swimming pool equipment ready for the upcoming winter months. In this article we will focus on your AquaCal heat pump as failure to winterize your heat pump may result in serious freeze damage not covered under warranty. In areas where freezing conditions are prevalent and sustained, the heat pump MUST be winterized for hard freeze conditions. Depending on your heat pump model and when it was manufactured there are different methods for winterizing, let’s go over some of them.

External Drain Plug

1.Disconnect power; turn “OFF” circulation pump.
2.Disconnect plumbing unions.
3.Remove drain plug.
4.Allow water to drain out over a long period until heat pump is fully drained.
5.Re-connect external drain plug.
6.Loosely connect plumbing connection unions.

Titanium Exchanger (with Internal Drain)

1.Disconnect power; turn “OFF’ circulation pump.
2.Remove front access panel. Confirm heat exchanger inside heat pump matches illustration.
3.Disconnect plumbing unions.
4.Remove drain plug.
5.Allow water to drain out over a long period until heat pump is fully drained.
6.Re-connect external drain plug.
7.Loosely connect plumbing connection unions.

Titanium Tube-in-Tube Exchanger/Cupronickel Tube-in-Tube Exchanger

These heat exchangers are the most challenging to properly winterize.
1.Disconnect plumbing unions.
2.Place garden hose into the inlet used of the heat pump; wrap a clean rag around the hose to form a temporary
   seal.
3.Allow water to run through the heat exchanger for 2-3 minutes; fresh water should be seen exiting the pool’s out-port.
   Repeat process on outlet side.
4.Place an air hose into the pool inlet of the heat pump; wrap a clean rag around the hose to form a temporary seal.
5.Push all water from the water circuit using compressed air at approximately 50 psig. The residual water should be forced out of the pool out connection.
6.Allow compressed air to blow into the heat pump inlet for at least 15-20 seconds after water stops coming out of the pool outlet.
7.Repeat process on outlet side.
8.Loosely connect plumbing connection unions.

Titanium Exchanger (with no Drain)

1.Disconnect power; turn “OFF” circulation pump.
2.Remove front access panel. Confirm heat exchanger inside heat pump matches illustration.
3.Disconnect plumbing unions. This model is self-draining when unions are disconnected.
4.Allow water to drain out over a long period until heat pump is fully drained.
5.Loosely connect plumbing connection unions.

Being prepared is always half the battle, if you follow the above steps you will be ready for the winter months and safe from costly damages to your swimming pool heat pump. As always, feel free to contact us should you have any additional questions or if you need further help, comments or suggestions are always welcome!

This entry was posted in on Tuesday, September 15, 2015
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