Installation Tips - How to Install Your Swimming Pool Heat Pump

Installing your pool heat pump is a fairly simple task and can be completed either by the pool owner, a local engineer. The swimming pool heat pump manufacturers' recommendations should always be followed in order not to invalidate the warranty, or to prevent your heat pump from working properly.
Here are some tips if you decide to install a pool heat pump yourself:-
1. A Suitable Location
Choose a location for your heat pump where it can get a good flow of air. Optimum efficiency of the heat pump relies on good air flow.
Where possible the heat pump should always be installed outdoors so it can receive a good supply of fresh air to operate and extract the heat from.
2. Water Flow Rate
Most of our pool heat pumps state the required water flow rate on their specifications table. If the water flow rate is too low, then the water in the heat pump will overheat and the heat pump will switch off.
Check the water flow rate from your pool pump and through your filter to ensure that it is high enough for your pool heat pump.
3. Base
The base for the heat pump should be level and sound. You can use either a concrete base, paving slabs laid on sand or timber decking.
The vibration from the heat pump will be fairly minimal and will not disturb the paving slabs.
The heat pump can be installed above or below water level. The only proviso is that the pool circulation pump is powerful enough to deliver the water flow rate that the heat pump needs to operate. 
4. Electrical Supply
Before purchasing a pool heat pump, you should check the running current and peak current stated on the listing for your desired model.
Ensure that your electrical supply is adequate to support the running and startup currents for the unit.
It is normally recommended to run a dedicated cable back to your electrical consumer unit for the heat pump and install a dedicated breaker for the heat pump.
Most heat pumps will have a higher electrical current demand when they start. This only lasts for a millisecond or so while the compressor starts and the current then reverts to the normal running current for the unit.
5. Plumbing
It is easy to add a heat pump to an existing pool pipework system.
First check to see what size of pipes you have.
In the UK, these are normally 1.5" or 2" pipes. In Europe, 50mm is more common. Check the writing stamped on your existing pipes and elbows to see which size you have. Do not just measure the external diameter of the pipes or fittings as this is often different to the size required and you may accidentally order the wrong size pipe and pipe fittings !
eg 1.5" pool pipe measures approx 1.9" external diameter (the 1.5" refers to the internal diameter of the pipes for imperial sizes and the external diameter for metric sizes)
Once you know the existing pipe size that you have, you will know what size connectors and elbows you will need.
In the UK 1.5" pipes are the most common and 50mm in Europe.
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