Wotech---Your Best Choice for Heat Pump Project.

Recently years, with the advantages of energy saving, environmental and stable performance, the air source heat pump is more and more popular with users. While, establish the project in good quality, the most important thing is product quality and excellent service. Wotech heat pump adopted the  specialized compressor which could be used in the high temperature ambient, unique jet increase enthalpy technology, nanometer gold plating evaporator, intelligent electronic control system, which ensuring the product high efficiency and high cost-effective. That is why Wotech heat pump being highly regarded by many engineering contractor.

No longer have COLD in Winter with Wotech heat pump!

Winter, it is a season that in a great mount of hot water needs. In recently years, under the Chinese policy pushment, the air source heat pump as the environment units are widely applied in hotels, schools, hospitals, swimming pool, community and villas, which makes the heat pump in the hot water project field playing a more and more important role. While as the leader in the heat pump industry, Wotech with the self advantage, become the most hot sale product in the hot water project market.With the high quality, Wotech has built a lot of hot water and heating project in the north cold area, that is why Wotech heat pump could be the popular product in the market.

Pray for the AIR ASIA QZ8501.

Pray for the AIR ASIA QZ8501. All our thoughts, energy and spirit are with everyone on board the QZ8501.

Wotech heat pump heating with greater low-carbon and energy-saving advantages.

It is different from the traditional image, winter heating no longer is the traditional heating method which is base on coal-fired and damage the air environment. It relies on the Wotech ultra-low temperature heat pump, which could realize the central heating for a community. Through the heat pump, it is not only no damage to the environment but also  in energy efficiency, compared with the conventional reliance on coal, air conditioning and high energy consumption products, Wotech heat pump heating with greater low-carbon and energy-saving advantages . For more information, welcome to visit www.ecowotech.com

Wotech ultra-low temperature heat pump

As the important area of the Wotech heat pump for winter ultra-low temperature strategy, the north market became our market developing emphasis in 2014. We considered the future market and with the years experience on exporting heat pump to European developed countries, the ultra-low temperature heat pump specially became the superior product in England, Sweden, Norway, Russia, Canada these northern countries. Wotech heat pump not only has the whole series of the ultra-low temperature products but also has the experience of R&D, manufacture, installation and after sale service. For more product range welcome to visit www.ecowotech.com.

WOTECH Heat Pump Workmanship

Besides technology Wotech also focus on advanced manufacture equipment and improving workmanship. In 2010 Wotech has carried out the manufacturing concept of "To apply European standard applied to Wotech heat pumps for Chinese consumers". This ensures all Wotech heat pumps reach European standard. By Wotech's intelligentized production line which can produce heat pumps in various kinds of refrigerants. With its good welding process, accurate refrigerant volume charged process, refrigerant system impurity cleared process and auto-packaging process, Wotech has established a production process of high quality and efficiency. Best manufacture environment, best production line and best production process have pushed Wotech to be a leading manufacturer of heat pumps in China. For more welcome to visit www.ecowotech.com

WOTECH Heat Pump---Renewable Energy Heating Your Home

Domestic heat pump water heater is not a luxury, but a must. With the variable demand of your family, you want a totally reliable system that doesn't harm the earth. WOTECH heat pumps are powered by an inexhaustible supply of renewable energy --- the air- so you can always rely on a WOTECH system to supply domestic hot water heat pump can reduce your energy bills and your carbon dioxide emissions too, bettering your budget and the environment. WOTECH heat pump will bring you a healthy and comfortable life. For more welcome to visit www.ecowotech.com

What is the heat pump quality control system in wotech?

Wotech has been operated with ISO 9000 quality control systems since its establishment. In the year 2009 it was certified with ISO 9001 quality control systems by SGS international certification company and GMC (Global Manufacturer Certificate) by TUV. Besides quality control certification Wotech has obtained CCC, CE,ETL and CB. Edeavoring quality products, by such advanced quality control and quality assurance systems. Wotech is able to ensure every component fully inspected, every process strictly controlled, every product perfect.

Wotech Split EVI heat pump series---BC-L2 series

Heat pump start-up check on production line

Before packed in carton each heat pump will be connected with power to see if all wirings are still in good contact. It is aware that when the heat pump is dried out the water, wiring is got loose and in bad contact. For more heat pump production process welcome to visit www.ecowotech.com

The SGS heat pump testing chamber in Wotech

Since 2005 Wotech has invested big amount on testing chamber every year to ensure its technology to keep pace with international standard. Wotech professional testing center where could provide equipments to test heat pump for SGS. There are 3 enthalpy difference experiment chambers in testing center. 2 with chamber size 20 square meter, able to test up to output 20kw heat pump, 1 with chamber size 42 square meter, able to test up to 50kw heat pumps.

In the testing chamber we can test heat pumps at different ambient temperature from -25~43 degree C and different humidity. This testing chamber also can simulate different ambient conditions, such as artifial snow and rain.

Now wotech testing center has been the advanced and functional testing chamber for heat pump in China, which ensure the heat pump quality and technology we supply to you. Do you want to know more about us? Welcome to visit our website www.ecowotech.com. 

Wotech heat pump evaporator

What kind of evaporator wotech offer to you? Here is the answer! Wotech evaporator, which is special design with nanometer technology. Comparing with the plain films and louver fins, the hydrophilic concave-convex fins possess higher thermal efficiency. The corrugated structure makes condensed water turn into channels easily and accelerates the water discharge.Defrosting is effective. The evaporator gets rid of freezing.

All our evaporators are 100% check, each one would be charged 30 bar gas pressure and drop it into the water to find leaks.

Do you want to get more information about our compononts, welcome to visit us on www.ecowotech.com.

Pool heat pump titanium heat exchanger

Here wotech will introduce you our pool heat pump component---titanium heat exchanger, which is produce by wotech subsidiary company. As you can see,  the shell of the heat exchanger is made of PVC plastic which could bare the high pressure  inside and according with the ROSH standard. The coil inside the shell was made of pure titanium material, which is specail design for swimming pool water and anti-corrosion by chlorine.

During the heat pump working, the water will go in from the lower inlet and flow outside the coils which is full of refrigerant and exchange heating, then come out from the upper outlet.

As the manufacturer of the heat exchanger, we could better cotrol the quality for you than others who buy from the suppliers. The quality of the titanium coil and welding is very important and we know the quality inside, the color of the welding can tell the quality, gold is the best, light blue is acceptable, but dark is refused.

 

Now I think you must impressed by the wotech production, do you want to get more info about wotech heat pump? welcome to join us on www.ecowotech.com

How to test the heat pump heat exchanger

Do you know how Wotech test the heat exchanger and how we control the quality for you. Below is the steps.

The first step is water leakage check, our staff will connect the heat exchanger with the water pipe and charge water pressure up to 4 bar to see if water leaks from the PVC shell. We are 100% check on every heat exchanger with 4 bar water pressure and 6 bar as random check on some pieces.

The second step is refrigerant circuit leakage check. Titanium heat exchangers are kept at high pressure of nitrogen inside the coil for 48 hours which can check refreigerant circuit leakage before being assembled, this is 100% check. After 48 hours workers will unscrew the gas valve to check if any gas pressure inside the titanium coil to find the leaks. Those fail will be rejected to suppliers.

After all checking, a round green QC passed sticker wil be put on the heat exchanger to show this is QC passed. 

For more welcome to visit our website www.ecowotech.com

Wotech heat pump performance test

Each heat pump will have to be tested 30 mins for heating and 30 mins for cooling (if there is cooling mode). Water flow will be fixed, sensors will be installed on important positions to check if heat pump performs as designed. All test results will be marked on the unique product ID check list. Those which does not perform well enough will be taken off from production line for investigation. For more information welcome to visit www.ecowotech.com

Heat pump floor heating

Air source floor heating is applied the heat pump for water heating (general 35-55℃) that circulation flowing in the pipes which is covered under the floor. It supplies the heat for the whole room with the radiation way and would not produce the hot wind, which is good for health. Now the heat pump floor heating has became the most ideal family heating device.

For more heat pump welcome to visit www.ecowotech.com

Wotech eco heat pump production process

Wotech not only has the intelligent assembly line which adapted to a variety of refrigerants (R22,R407C,R134A,R410A), but also through the outdoor piping nitrogen welding process, accurate and efficient refrigerant infusion system, bidirectional filter impurities technology, analog conditions automatic inspection systems and automated packaging process, to forming a high-quality,high-efficiency machine production processes.

For more information, welcome to visit us on www.ecowotech.com

Wotech air source heat pump first create the main unit split anti-frost design

With the advantage of ultra-low temperature development technology and base on the market demand, Wotech air source heat pump first create the main unit split anti-frost design, adopting the "Fluorine" and "water" separate technology, and the jet enthalpy compressor which is specially used by American copeland ZW heat pump, combining with the Europe sencond-generation high temperature jet enthalpy technology, ensuring the perfect operation under the ultra-low temperature environment. This heat pump not only meet the daily water using demand, but also could be used as floor heating.

For more product ranges, welcome to visit us on www.ecowotech.com

80℃ high temperature heat pump with wall-hanging design.

In 2014, the wotech wall-hanging air source heat pump has been the featured product pushed to the high-end urban family. With the Europe wall-hanging design and excellent heating efficiency, this heat pump occupied a large part of family users share. 80℃ high temperature hot water not only provide users with a lot of hot water available for dilution but also play a bactericidal effect of domestic hot water, which is an energy saving product could cater urban users high quality demand and fast life style.

Accoding to the statistics, during the whole 2014 year, wotech has developed several series products including the high temperature wall-hanging heat pump, ultra-low temperature air to water heat pump and heat pumps special designed for real estate projects.

For more product ranges, welcome to visit us on www.ecowotech.com

Multi-functional air source heat pump---BY series.

Multi-functional air source heat pump, a single unit for multiple functions can meet the need for heating,cooling and hot water supply at the same time. In summer it cools the air and supplies hot water,in spring and autumn it can simply create hot water,in winter both water and air heating are available under the -10 degree ambient temperature. More product ranges welcome to visit www.ecowotech.com

wotech BR-A3 plastic pool heat pump

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Free heat pump consultation on www.ecowotech.com

Do you have the confusion on choosing the right heat pump for your house or swimming pool?
Do you have the problem on installing the suitable heat pump for your hotel, hospital or school projects?
Wotech is the here and welcome you to contact us on www.ecowotech.com for free consultation.

How heat pump works?

1. Cryogen temperature drops to -20℃ after the pressure releases. When ultra-low temperature liquor cryogen enters and flows in absorbing heat evaporator, it meets air about 20℃. Through air heat transfer (the temperature different is 40℃), ultra low cryogen absorbs air heat, its temperature rises to 20℃.

2. Cryogen of 20 enters low temperature compressor, gets pressed, heated up, and turns into high pressure 80℃ air. Discharged from compressor, and then enters heat exchanger.

3.Vaporized cryogen temperature of 80℃ passed heat to low cold water in heat exchanger, changing into 60℃ life used heat water which is pumped into warm keeping tank for storage through circulating pump. High temperature cryogen heat releases and turns into high pressure liquor.

4.High pressure liquor cryogen throttles and lowers pressure through expansion valve, making entering into evaporator to absorb.

5.According to Reserve Carnot Circle Theory, compressor constantly repeatedly circles. The whole course is to transfer heat. As long as it use a kilowatt-hour electricity to drive compressor to work, it can absorb heat in the air equat to that produced by 3-6kh electricity, passing to water. Obviously it save's energy and work safely.