Delivery Time:10-15 days after TT payment
Certification:CE EN14511

Best cost saving air /water source residential heat pumps

AW12-QNNNS, stainless steel high efficiency air to water heat pump. ASHPs supply more energy than they consume. By extracting heat from the surrounding air, the heat energy released can be up to 4 times the energy required to power the equipment.

HISEER AW12-QNNNS, 220-240V/1/50Hz, 443 stainless steel cabinet, R410a refrigeration, designed and tested by EN14511, approved by TUV china branch, adopt the following world famous parts:
* SWEP or GEA plate type heat exchanger
* Siemens controller
* Daikin scroll compressor
* Schneider A/C contactor
* Emersion thermal expansion valve
* Emersion dry filter
*Soft start is standard part

Air-source heat pumps, often used in moderate climates, use the difference between outdoor air temperatures and indoor air temperatures to cool and heat your home, at the same time to supply domestic hot water.

How does a air source heat pump work?
An air source heat pump is made up of three main components - an evaporator coil, a compressor, and a heat exchanger.

The evaporator coil is fitted to the outside of an external wall. It absorbs heat from the outside air. The compressor pushes the refrigerant gas through the system compressing it until it is at the desired temperature (typically up to 35-40 degrees Celsius). The hot refrigerant then passes through the heat exchanger where the heat from the refrigerant is transferred to water or air.

The operation of a heat pump can be reversed and used to cool down the air in a building by radiating it outside - behaving in exactly the same way as a refrigerator.

Coefficient of performance
Heat pumps are measured by their coefficient of performance (COP). The COP for air source heat pumps is very similar to that for ground source heat pumps at approximately 2-3. With a COP for instance of 3, 3 units of heat are produced for every 1 unit of electricity consumed. (The two free units of heating were extracted from the outside air). Even with ambient air temperatures of -10 to -15 degrees Celsius, an air source heat pump can extract useful heat (i.e. > 1 unit of heat generated per unit of electricity consumed).

AW12-QNNNS technical data

AIR TO WATER HEAT PUMP		AW12-QNNNS
Heat output/Power consumption at 7/35℃	kW	13.0/3.6
Heat output/Power consumption at 7/45℃	kW	12.5/4.2
Heat output/Power consumption at 7/55℃	kW	12.2/5.3
Heat output/Power consumption at 2/35℃	kW	11.1/3.5
Heat output/Power consumption at 2/45℃	kW	10.8/4.2
Heat output/Power consumption at -7/35℃	kW	8.0/3.5
Heat output/Power consumption at -7/45℃	kW	7.9/4.2
Starting current	A	36
Soft-start relay		Included as standard
Power		220-240V/1PH/50Hz
Compressor		DAIKIN Scroll
Condenser		Brazed plate heat exchanger
Nominal flow heating medium	l/s	0.62
Internal pressure drop at nominal flow	kPa	20
Air flow	m3/h	5000
Nominal outp