Four-pipe air-cooled heat pump heat recovery unit + clean operating room combined air conditioner + PLC controlMulti-function: four-pipe, frequency conversion adjustment, cooling and heating operation can realize energy recovery at the same time, no need to add a hot water tank to adjust the water capacity on the hot water side;
Low-temperature heating: Adopting jet enthalpy and high-temperature liquid injection technology, heating operation at minus 20℃, and energy efficiency ratio higher than 2.1;
Low temperature refrigeration: EC fan is used to detect the discharge pressure of the compressor to achieve normal refrigeration at -20°C,
Cooling and heating balance: automatic cooling and heating balance under partial cooling and heating load, automatic distribution of refrigerant flow;
System stability: Adopting single four-valve design, consistent operation, mature system technology, stable and reliable operation;
Energy saving and environmental protection: annual heat recovery can be realized, energy recovery can be adjusted, cooling energy efficiency ratio ≥ 4.0, while heat energy efficiency ratio ≥ 5.0, combined cooling and heating energy efficiency ratio ≥ 9.0, operation energy saving effect is more significant ;
Intelligent control: Microcomputer PLC control technology, automatically detects the operating status, and realizes energy-saving operation;
Fault self-check: automatic fault detection system can detect operation faults such as suction and exhaust pressure, exhaust temperature, phase loss and reverse phase, overcurrent and overload;
Unique technology: the perfect combination of single four-way valve design, ultra-low temperature heating design, low temperature refrigeration design, and stable mode conversion.