Water To Water Heat Pump

• Heating function

If connected to the fan coil, offer heat air in winter; if connected to water tank, it can act as house heating and warm water supply.

• Compactly design

This system can run at conditions of high or ambient temperature with high EER. It reduces costs up to 75%.

• Convenient operation

Microelectronics control, all temperature settings are set by manufacturer. System tests and adjusts water temperature automatically. All what user needs to do is just to press “ON/OFF ” button. System finishes the other operation automatically.

• Excellent performance

Adopt world famous components, and the best match of system design. Scroll compressor with high EER and low noise. High efficient heat exchanger insures the utmost using of system capacity. Professional air conditioner water pump insures smooth quiet operation.

• Easy to install

The system is designed with full consideration of insuring installation as easy as possible. Refrigerant circle is a sealed complete system finished by manufacturer. No needs for users to connect copper pipes or refrigerant charging. Hydraulic circle of system can be connected to hydraulic terminals by two tubes.

• Operating protection

System is designed with over voltage, under voltage, over load protection to insure safe operation. The microelectronics controller can start or switch off the machine by judging the water temperature. If the water temperature is lower than designed, the machine will be switch off to avoid freezing. The microelectronics controller can also supervise the status of components. Malfunction occurred would be transmitted to the controller and displayed through malfunction code.

• Convenient for maintenance

Suppose system is stopped by malfunction, special malfunction code will be displayed. The cause may be found out easily.

Minimun Order: 1 Unit / Units
Shipment Terms: FOB USD 1000~5000 / Unit
Port: Fo shan
Payment Terms: L/C   T/T 
Production Ability: 300  Unit/Units / Month

5. Specification parameter

DAHISHIBA - Water to water heat pump
Model	DWW-35HA/3
Heating capacity	kw	34.66
Power input	kw	7.854
COP	kw	4.4
Hot water output	L/H	800
Designed water output temp	℃	55
Highest water output temp	℃	60
Max power input	kW	12.584
Max. running current	A	21.48
Power source	V/N/Hz	380~415 /3/50
Compressor type	scroll
Refrigerant(R410A)	kg	2. 8 × 2
Domestic hot water flow	M3/h	6.5
Ground hot water flow	M3/h	6.0
Connection pipe(heating)	DN	32
Connection pipe(water-source)	DN	32
Noise level	dB(A)	52
Dimension (W*D*H)	mm	1075×796×900
Net weight	kg	248
Protection Class	IPX4
Note: Capacity and power input based on the following condition. Ground water inlet temperature 15℃.

6.  The figure of working principle
The system is immersed into a lake, dug into the ground or sunk into the rock; absorbing the heat energy from these heat sources, bring to the refrigerant. At the same time, with the working of compressor, the refrigerant is compressed and temperature rises further.

1. Y type filter	2. Expansion vessel	3. Rake type flow switch	4. Water circulating pump
5. Shutoff valve	6. water to water heat pump	7. Insulating water tank	8.Ball float replenishing valve
9. Coil