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Compared with traditional chillers, the air source heat pump with heat recovery can provide hot living water on the basis of heating/cooling, the desuperheaters make use of the hot refrigerant vapor leaving the compressor to heat the water through a relatively small liquid to refrigerant heat exchanger without increasing the power consumption of the compressor. The dusuperheater can transfer 25 to 30 percent of the energy that would otherwise be dissipated by the condenser.
STRUCTURE
Panels and base frame are made from galvanized steel protected with polyester powder painting to ensure total resistance to atmospheric agents.
HERMETIC COMPRESSORS
Single phase rotary type (mod. 5 only) and 3-phase scroll compressor (mod.8.5-30), with thermal overload cut-out and crankcase heater mounted on rubber vibration isolators.
AXIAL FANS
External rotor type axial fans, equipped with single phase direct drive motors, low noise 6 poles, protection level IP54, provided with a protective outlet grille.
EVAPORATOR
High efficiency tube in tube type, factory insulated with flexible close cell material.
CONDENSER
Coils are consisting of seamless copper tubes mechanically expanded into blue hydrophilic aluminum fins, protected with flexible plastic grill.
DESUPERHEATER
High efficiency stainless steel brazed plate heat exchanger, factory insulated with flexible close cell material.
REFRIGERANT CIRCUIT
Copper tube connection with charge valve, filter, sight glass, gas-liquid separator, thermostatic expansion valve, low pressure switch with automatic reset, high pressure switch with manual reset.
The heat pump unit is completed also with 4-way valve, liquid receiver and one way valve.
HYDRONIC CIRCUIT
Built with air vent valve, water drain connection, and female-threaded hydraulic connectors.
ELECTRIC PANEL
consists of:
lCompressor contactor;
lCompressor protection breaker;
lFan motor protection breaker;
lControl circuit protection breaker;
lPhase sequence relay (only for 3-phase power supplied units);
lProgrammable microprocessor controller
OPTIONAL
Additional electric heater embedded in the coils for defrosting in low temperature ambient. It must be factory installed.
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