-25 Degrees DC Inverter Air Source Heat Pumps

The nominal refrigeration COP (efficiency) of Air Source Heat Pump is very high averaging over 4.2 but importantly the performance of these units in reducing ambient temperatures is also at an extremely high level. Designed to operate in ambient temperatures as low as -25ºC the range is more than capable of operating with high efficiency in winter temperatures. These units incorporate a built in heating system circulation pump, control for hot water production including Y Plan valve operation along with full weather compensation and sophisticated controls which give a very short defrost cycle of approximately 6 minutes in lower ambient temperatures.

Why this choice?
Amrta air conditioner of chillers with the EVI-cycle increase the maximum temperature difference remarkably and provide a COP up to 4.5, which makes the hot water system much more efficient. 
They can be widely used in the commercial situation.

Characteristics

High efficient
The application of EVI technology together with the high efficiency heat exchanger improves the heat exchanging rate.
Low working temperature
Units achieve optimum performance at ambient temperature as low as -25oC, ensuring 60oC hot water all year round.
Easy control
Intelligent control system with the Carel controller makes it much easier to control your unit whenever you need.
EVI technology
The EVI compressor ensures the unit operate safely at low ambient temperature with higher efficiency and less noise.

Structure
Panels and base frame are made from galvanized steel protected with polyester powder painting to ensure total resistance to atmospheric agents.
Compressor
Hermetic scroll type compressor, equipped with the crankcase heater and thermal protection with thermal overload cut-out and crankcase heater mounted on rubber vibration isolators
Axial fan
External rotor type axial fans, equipped with single phase direct drive motors, low noise 6 poles, protection level IP54, plastic blade for low noise.
Evaporator
High efficiency tank type heat exchanger, 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. 
Refrigerant circuit
Copper tube connection with charge valve, filter, sight glass, gas-liquid separator, electronic 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.
Water circuit
Without water pump and expansion tank, but with paddle flow switch.
Electric panel
consists of:  
Compressor contactor;
Compressor protection breaker;
Fan motor protection breaker;
Control circuit protection breaker;
Programmable microprocessor controller

Technical Data