Three-in-one Air-to-Water Heat Pumps - Withair® Heating and Cooling, Air Conditioning, Heat Pump, Chiller, Industrial Process Cooling & Heating Systems, and Indoor Air Quality

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Three-in-one Heat Pumps for Cooling/Heating & Hot Water

Power off memory function
Multiple protection functions
Unit runs or stop automatically according to water temperature
Connectivity, flexibility and serviceability enabled by smart controller
Electric expansion valve regulates the flow of refrigerant precisely
Air exchanger(Fins-coil) with hydrophilic coating
Intelligently & automatically judge the frosting degree & accurately defrost
Modbus RS485, BACnet communication interface
Automatic prevent freezing in the winter
Five working modes: cooling + hot water, cooling, heating, hot water, heating + hot water

Overview

Reduces the Impact of Heat Emissions on the Environment

When the air conditioning unit is cooling indoors in summer, it will discharge a large amount of waste heat outdoors. The Withair’s heat pump three in one unit can recover these waste heat and release them into the water to produce sanitary hot water for bathing or kitchen use. The hot water is obtained free of charge, which not only saves energy, but also reduces the impact of outdoor heat emissions on the environment.
Energy Efficiency

Withair® heat pump three in one unit can provide indoor heating and domestic hot water at the same time in winter, also produce hot water independently, so Withair’s heat pump three in one unit is not only a heat recovery central air conditioning unit, but also a heat pump water heater with high efficiency, energy saving, low carbon, environmental protection and safety.
Quiet Operations

Unique designs, including inverter-driven compressors and natural convection heat distribution, ensure quiet operation of Withair® indoor and outdoor units.
Wide Selection

Withair® heat pump three in one unit is widely used in hotels, schools, hospitals, bathhouses, dormitories, nursing homes, barber shops, restaurants, villas and so on

Models

/ co Specifications	WKS-08E1	WKS-12E1	WKS-25E2M	WKS-60E2M
Capacity (Ton)	2.0	3.5	7.0	20.0
Rated Hot Water Output (L/h)	235	428	857	1929
Hot Water Up To (℃)	60	60	60	60
Compressor	Hermetic Scroll	Hermetic Scroll	Hermetic Scroll	Hermetic Scroll
Voltage	230	230/380～415	380～415	380～415
Frequency	50 and 60	50 and 60	50 and 60	50 and 60
Refrigerant	R-410A, R-454B	R-410A, R-454B	R-410A, R-454B	R-410A, R-454B
COP	6.3	6.4	6.5	6.3
Modbus RS485, BACnet communication interface	Option	Option	Option	Option

Factory Installed Options

Unit Options

Controls Options

Electrical Options

Resources

Name	Size	Download
Withair® Packaged Rooftop & Split DX Systems-Line-Card.pdf	550KB	Download
Withair® Solutions Offering-Line-Card.pdf	4.00MB	Download
Withair® HVACR SYSTEM SOLUTIONS OFFERING_2025 Version.pdf	3.54MB	Download
Withair® Water-Cooled-Chillers-Line-Card.pdf	483KB	Download
Withair® Air-Cooled-Chillers-Line-Card.pdf	679KB	Download
Withair® Air-Cooled-Heat Pumps-Line-Card.pdf	721KB	Download
Withair® Ground(Water)-Source-Heat Pumps-Line-Card.pdf	502KB	Download
Withair® Industrial Process Cooling & Heating Systems-Line-Card.pdf	506KB	Download
Withair® Air-Side-Products-Line-Card.pdf	1.69MB	Download