This series adopts high efficiency tube-in-shell heat exchanger and built-in water pump inside the heat pump, which ensures not only high efficient performance of the system but also easy installation.
Features Technical Parameters Working principle

Product Description:
DAISHIBA Split water cycle heat pumps adopts high efficiency tube-in-shell heat exchanger and build-in water pump inside the heat pump, which ensures high efficient performance and easy installation. It provides hot life water for shower, washing etc.

Product Features:
· Panasonic/Highly rotary compressor
· Water pump built in monobloc
· Automatic defrosting
· Intelligent control
· Safe, reliable, stable running
· Long working life
· Low noise & vibration
· Easy to install & operate
· Water cycle

Product Optional:
· R22, R410A, R134A, R417A refrigerant
· Cabinet: Stainless steel/powder coated steel
· Heating exchanger: tube-in-shell /tube-in-tube


Q1: Are you a factory or trading company?
A: We are the factory, and especially R&D, manufacturer and sell various heat pump euipment. We have engaged in the heat pump R&D and production over 10 years.

Q2: How to find a heat pump suitable for my product?
A: a. Tell us about your product details;

b. What functional heat pump products do you need;

c. Tell us your local minimum ambient temperature and maximum ambient temperature to recommend products that meet your needs;
d. Power supply specifications and special requirements used in your country. 

Q3: Is engineer available to serve oversea?
A: Yes, but the travel fee is paid by you. So actually to save your cost, We provide installation instructions and 24-hour online service and assist you till the end.

Q4: What is the payment term?

A: 30% T/T deposit and 70% T/T balance payment before shipping (If you purchase a sample that requires 100% payment, In order to avoid second payment, bank deduction fees will be generated again). Online trade assurance order, L/C, or as negotiated terms with clients.


Q5: How long is the warranty time?
A: 1 years of warranty. In guarantee period, if spare part broken, we will send you the parts free and we will pay the express fee. And please send us the spare parts back. when machine is out of guarantee period, we will provide you the spare parts by charge.

Q6: How can we make sure about the machine quality after we put the order?
A: Before delivery, we will send you the pictures for you to check the quality, and also you can arrange for quality checking by yourself or by your contacts in China.

Q7: We are afraid you won't send us the machine after we send you the money?
A: Please note our above business license and certificate. And if you don't trust us, then we can use Alibaba trade assurance service, guarantee your money, and guarantee your machine's on-time delivery and machine quality..

Q8: Why we should choose your company?
A: We are a professional heat pump manufacturer over 10 years, and we provide better after-sales service. We guarantee no risk for our deal.

Heating capacity kW 3.5 5 7.4
COP W/W 4.12 4.17 4.01
Rate heated water output  L/h 75 110 160
Rated outlet water temp.  55
 Max outlet water temp. 60
Rated power input kW 0.85 1.2 1.85
 Rated current A 4.07 5.74 8.85
Power supply  V/Hz/Ph 220~240V/50Hz/1Ph
 Compressor type / Rotary
Number of compressors
/ 1
Heat exchenger type / High efficiency tube in shell heat exchenger
 Throttling device / Capillary EEV
Fan type / Low noise high efficiency axial type
Fan discharging / Horizontal
Fan quantity / 1
Fan input W 20
Fan speed RPM 830 830 850
Ambient temp.   -7℃~43    
 Refrigerant   /  R22/R410A/R134A   R417A
 Noise in 1 meter distance dB(A)  ≤54  ≤54  ≤55 
 Water pipe size  inch  Rc3/4
 Suggested water tank capacity  L 100~150   200~300 300~500 
 Cabinet Stainless steel/ galanized powder coated steel   
 Low pressure protection system Yes   
 High pressure protection system /  Yes  
 Water flow switch /  No  
 Automatic defrosting system /  Yes  
 Product dimensions mm 710*310*940  710*310*940   1005*305*587 
 Product dimensions (left-right) mm 930*360*560  930*360*560   
 Package dimensions mm  755*380*950 755*380*950  1040*360*640 
Product dimensions (left-right)  mm   995*370*570  995*370*570   
 Product net weight  kg 55   62 66 
 Testing conditions Heating: Ambient temp.(DB/WB): 20℃/15℃, water inlet/outlet temp: 15℃/55℃.    

How does a heat pump work?

Heat pump uses electrical energy and take low grade heat energy from the outdoor air to heat refrigerant which in turn heats water for domestic use and space heating. The efficiency of a heat pump is known as the coefficient of performance or COP. This is a ration of the heat delivered to power consumed.

At the beginning of the first phase the refrigerant is cold low pressure liquid.

1. The refrigerant passes into the evaporator and heat energy from the outside air passes over the evaporator causing the refrigerant to increase in pressure and change to warm vapor.

2. This warm vapor then enters the compressor as it passed across one side of a plate heat exchanger, and this is transferred via the pimary water circuit to heat up the water tank.

3. The hot refrigerant gas is the temperature, the cool vapor still has a high pressure and to reduce this pressure the vapor passes through an expansion valve. This cause the pressure to drop and the temperature lowers, returning the refrigerant to its initial state of cool low pressure liquid.

This process is repeated.

It is only the refrigerant that passes through this cycle; the water is heated as it travels tthrough the plate heat exchanger. The heat energy from the refrigerant passes through the plate heat exchanger to the cooler water which increase in temperature. This heated water enters the home heating circuit and also be used to provide domestic hot water via a hot water tank.