Hot water supply apparatus comprising a thermodynamic circuit

A hot water supply apparatus comprising:

• a thermodynamic circuit A containing a thermodynamic fluid in liquid and vapor phases, having compressor means, condensor means for heat exchange between said thermodynamic fluid and a high temperature source including a hot water circuit, expanding valve means and evaporator means arranged for heat exchange with a non-freezable heat carrying liquid,
• a cold source comprising solar exchanger means, and a circuit for circulation of said heat carrying liquid,
• a tank for receiving a body of water for heat storage,
• heat exchange means arranged in said circuit for circulation of said heat carrying fluid and physically located above said tank,
• pumping means for directing a flow of water from said tank to sprinkling means associated with said heat exchange means, whereby the apparatus operates as a ice-manufacturing device under severe cold conditions and insufficient solar heating,
• and defrosting means for melting ice in contact with said heat exchange means with heat taken from the apparatus.