TECHNICAL MANU AL CD 30÷520 06.06 M T E 0 11 2 5 6 ... - Chiller

CD 30 ÷ 5203. surrounding Temp. of unit work is shown as follows:Name Cooling operation Heating operationWater-outlet temperature ≥3℃ ≤58℃Air-side heat-exchangerAir-inlet temperature17—43℃ -7—17℃6. Digital scroll compressorDigital scroll compressor is made up of following components: fixed vortex plate, movable vortexplate, motor, suction and discharge pipe、PWM(Pulse WidthModulation) solenoid valve and so on. It differs from ordinaryscroll compressor: the compressor utilizes the axial flexiblesealed technology and PWM solenoid valve to precisely adjustthe axial moving range of the stator scroll plate. And there is anadditional connecting bypass at the suction inlet connected withthe middle pressure bore at the floating sealed point of axialstator. When PWM solenoid valve is turned on, the pressure inmiddle pressure bore is released. The pressure in compressbore is higher than on the stator. The stator axis of thecompressor will move upward a little. So the unload is achieved.When the solenoid is turned off, the stator is pressed down. Then the seal and upload is achieved.The compressor plate can adjust the ratio of on and off freely to achieve the output of “0-1”, that isDigital Scroll Compressor.6.1 FlexibleThe stator and rotor can move axially and radial in certain space and can separate under normalcondition.6.2 Axial flexible sealedThere is about 1mm space for stator to move axially. Normally, under the action of gas pressure(discharge pressure and middle pressure of compressor chamber), the stator and rotator cancombine tightly and form the sealing surface.12