Water Cooled Screw Chillers

Features/Benefits
Tecka water-cooled chiller is result of a search for higher performance, more environmental friendly, better intelligent control and higher reliability. Combining the newest technology from international and domesticair conditioning and cooling industry with concreted working condition of China.

High Efficiency
Apply the most advanced semi-hermetic compacted screw compressor. The applicance of
Patented asymmetry teeth shape has the features of small pressure difference, small return blow
Hole, high volume efficiency and low energy consumption. Microcomputer controlled screw
Compressor meets the requirements of different load by applying step or continuous capacity
Adjustment and adjusting the amount of operating compressors.

High efficient evaporator and condenser
Condenser is applying horizontal shell and tube type. The patented Tecka C type coil tubes possess a unique pin shape, which increases the heat exchange rate by more than 20%. Evaporator is applying dry shell and tube type. The E2C type coil tubes enlarge the nucleus boil ability to increase the heat exchange rate.


Well designed coils
Design the coil with 10% more heat radiation area. Effectively reduce the temperature difference during heat transfer to increase the COP value. Regarding to the water quality in China, the coil is designed to increase the water side dust factor to reduce the cooling capacity reduction during long period of running.

Energy saving cooling capacity control
Compressor slide valves controlled by microcomputer may realize step or continuous capacity control and running compressors amount control. The precise cooling capacity control may increase the partial loading efficiency.

Environmental friendly
Besides the normally used R-22 refrigerant, the chiller can also work with R134a and R407C environmental friendly refrigerant.

High Stability
Reliable compressor
The world famous brand screw compressor applies third generation linear and precise rotor process technology, which greatly reduces leakage and loss. Rotors do not directly contact with each other when meshing because of oil spray lubricating and sealing. Therefore, there is almost no abrasion. The semihermetic and compacted structure of compressor integrates motor, screw and oil. Screws are directly driven by motors, so thatthe sealing problem of connecting rods isavoided. Compressor motor is cooled by return air to keep it work under proper temperature. This allows the chiller to work under abominable working condition and extends the operating life. Screw compressor is applying combined design of radial and transverse totally 11 be a rings. This design together with brandnew balance drums effectively reduces the load of bearings and increases the operating life 2.5-3.5 times. The internal protection system of screw compressor is equipped with advanced protective modules to avoid any damage caused by abnormal exhaust air temperature, motor electric wire, oil level and oil pressure
Drop, so that the unit may keep operating well.

Heat exchanger
All heat exchangers have been strictly tested for air tightness and intension to ensure their safety and reliability as pressure vessels. Cooler's fins and hole panels are processe integratedly by nu merical control center. Copper tubes and fins are fastened by precise ball bearing expansion machine. Water side has been tested under 1.6Mpa and Freon side has been tested under 3.0Mpa to ensure the well sealing of the unit. As a container standing high pressure, condenser is equipped with safety valves to ensure the safety of the whole unit.