Shenzhen Envicool Technology Co., Ltd.
c) Recycle the refrigerant with standard steps and equipments.
Refrigerant recovery or recycling must comply with the state and local laws and regulations.
1. Remove the damaged compressor.
2. Sweep the entire system with clean nitrogen, clean the entire refrigeration system with a
cleaning agent if pipes contain a lot of black impurities. As for the relevant operating
specifications, please refer to the relevant local and industry specifications and ask
professional and qualified maintenance personnel.
3. Install and replace the compressor, replace the dry filter and connect all components. Carry
out the nitrogen pressure maintaining (time of pressure maintaining is not less than 24h) and
leak-proof test, R410A pressure maintaining shall be not less than 3000kPa.
4. Evacuate the system, the first two is 150Pa and the third is 60 - 80Pa. In terms of the first two
times, nitrogen shall be added every time after evacuation, and then evacuate again to bring
water of the system out.
5. Charge the refrigerant. Please refer to super-cooling requirements in Section 2.5.4.
6. Turn on the power supply to run the device. Check if it is running normally.
The humidifier system includes a humidifying container with electrodes embedded, water supply
pipe, water drainage valve, steam transferring pipe, steam distributing pipe and humidifying control
panel, etc.
The humidifier’s automatic water drainage /manual water drainage switch is located near the
humidifying container. When the humidifier works normally, the switch should be at the automatic
water drainage position, and when it requires manual water drainage, the switch should be at the
manual water drainage position.
When the humidifier operates, the hydraulic pressure of the water supply system should be 0.1 to
0.8MPa.
Since the surface temperature of the humidifying container may be too high, when replacing it, let it
cool down first or wear protective gloves before touching.
Steps to replace the humidifying container:
1. Drain off the water in the humidifier container manually.
2. Shut off the power supply of the unit.
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