General diagram of the refrigerating circuit
The heat pump is reversible allowing the swimming-pool's heating or
cooling:
Swimming-pool water's heating mode:
The cold and liquid refrigerant fluid absorbs the heat contained in the air through the evaporator
(gilled radiator), in which it is vaporizing; it is then put up in pressure and in temperature by the
compressor which sends it in the condenser (exchanger) where it loses its heat (in giving it to the
water of swimming pool) and comes back in liquid state; it loses its pressure and still cools in the
expansion capillaries before turning back to the evaporator for a new cycle.
Hot air
Evaporator
(gilled
radiator)
Compressor
Single
way
valve
Cold air
Pressure and gas
intake
4 way valve
Condenser
(exchanger)
10
Expansion
capillary
Hot water
Cold water