AIR COOLED SCREW CHILLER
- Residential air condition
- VRV air condition
- FAN COIL UNIT
- Refrigeration System
- Air handling units
- Water cooled chillers
- scroll chillers
- Air to water heat
- Package units
- hygienic air handling units
- Data center package unit
Capacity
190~1300 kw
Modular design
Modular design conception has been adopted in this series of product. Maximum 8 units can be combined into 1 controlling system, which consists of 1 master unit and 7 slave units. In case that one of the units failed, the other units still running normally.
COMPRESSOR
High efficiency twin screw compressor
- Adopt international famous brand twin-screw compressor ,5:6 unsymmetrical structure ,specially made slide valve structure , can save 10% energy comparing with common screw compressor ;
- Star-Delta start method ,reduce the start current ;
- Capacity control is infinitely variable between 25% and 100% enabling capacity requirements to be closely matched by modulating the sliding valve position according to the chilled water control condition.
This semi-hermetic twin-screw compressor is developed especially for applications in air-conditioning and refrigeration. With a built-in high operating load design, each compressor is high efficiency and reliability in all working conditions such as thermal storage, and heat pump system. Each compressor has the latest and advanced 5 to 6 Patented Profile design
M Type Condenser
Condenser adopts the Copper tube & hydrophilic aluminum fin coil type structure, the appearance is M type, this design increase the heat exchange area , reduce the temp. difference thus increase the heat exchange efficiency 20%.
Evaporator
The SHELL&TUBE heat exchanger adopts high efficiency copper pipe.In cooling mode, SHELL&TUBE heat exchanger is as evaporator, while, in heating mode, it is as condenser.
In the SHELL&TUBE heat exchanger, the freezed water will flow out of the copper pipe, while the refrigerant flow in the copper pipe.
There is the heat insulation material cover the SHELL&TUBE heat exchanger.
High efficient tube;
According to the heat exchange efficiency of refrigerant side and water side, calculate the numbers of tube and get the heat exchange efficiency; Use inside and outside strengthened heat exchanger tube to make the heat exchange efficiency reach to the best
Definite the best liquid distribution type based on two phase flow principle. The refrigerant enters the evaporator evenly to ensure each heat exchange tube can transfer heat well
Electronic control
The units output part have special connection wire ,can realize inter-lock control with the cooled water pump ,every controller have R485 communication interface and software convenient for the customer.
- easy to program flexible control to user
- Temperature control with ±0,5°C tolerance
- powerful control function, user can use PID method to control theboperation, adjust the Operation status according to heat load to realize optimized operation;
- Current limiting and demand function
- Lead-Lag control of compressors
- System protection functions, unit can stop to enter protection when
- malfunction Happens, display the malfunction code and alarm to the
- operator;
- Dual set point option
- Alarm & predictive maintenance history
- Minimum heat load start, the unit can check the last time operation
- condition and supply Minimum start method, reduce the impact to the
- electricity network and improve the system stability;