How does a Pool Heat Pump Work?
What is a swimming pool heat pump?
A swimming pool heat pump is an environmentally friendly heating device
that heats the swimming pool and maintains a comfortable temperature. The heat
pump does not produce heat, it just transfers heat from the external ambient
air to the swimming pool water.
Heat pumps are very suitable for swimming pools, hot springs, or spas in
mild and humid climates. If you want to open the swimming pool early in the
spring or after the fall, these devices are the ultimate choice for swimming
pool equipment.
How does a swimming pool heat pump work?
1. The engine drives the fan to inhale warm air outside
2. The evaporator coil absorbs the heat in the air
3. The refrigerant flows through the evaporator coil, absorbs heat and
vaporizes
4. The compressor pressurizes the warm vapor into a hot liquid
5. The hot liquid passes through the inner tube of the heat exchanger
6. The exchanger absorbs heat and conducts the heat to the pool water
7. The refrigerant loses heat and becomes a gas out of the exchanger
8. The refrigerant flows through the expansion valve to release the
pressure and become cold air
9. Refrigerant flows back to the evaporator coil from fresh
10. The fan draws in outdoor air and starts a new cycle
A: The heating process starts with the electric compressor sucking in
the refrigerant and squeezing it until the temperature rises above 200°F. Now,
the refrigerant passes through the expansion valve, which controls the flow of
refrigerant from the high pressure. The pressure side enters the low pressure
area of the equipment. As the pressure is released, the refrigerant becomes a
hot, high-pressure gas.
B: Then, the high-pressure gas flows through the inside of the
evaporator coil. As the refrigerant expands into a gas, the refrigerant rapidly
cools and circulates through the evaporator coil. This is when the gas releases
heat to the surrounding water. Note: The water is never really exposed to the
refrigerant.
C: Next, the fan will draw warm ambient air through the coil to preheat
the refrigerant gas.
D: When the refrigerant returns to a liquid state, the cycle is
complete.
The warm water flows back into your swimming pool, and the heat pump
sucks in more cool water for another heating cycle.
Pool heat pump power selection:
The output of all air source heat pumps depends on the surrounding air
temperature. As the air temperature drops, the heat output from the heat pump
will also decrease. Therefore, it is important that the selection and size of
the heat pump must take into account the minimum air temperature that will be
operated.
Our sizing recommendations will take into account the heat pump output power at the lowest air temperature.
Please contact Leomon Technology for help and advice on the best models and sizes of swimming pools.
