How to extract the refrigerant in the chiller

1. Open all the valves of the industrial chiller refrigeration system, and turn the inhalation shut-off valve counterclockwise to make it fully open, and then use the multi-purpose joint to connect the repair valve with the suction shut-off valve;

2. Close the repair valve and adjust the suction valve to the three-way position;

3, clockwise rotation to close the outlet valve of the reservoir;

4. Start the refrigeration compressor of the industrial chiller. The main force in the evaporator is sucked into the condenser and accumulator.

Second, how to recycle the refrigerant of the industrial chiller to the cylinder?

Refrigerant is a specialized cylinder storage that recycles refrigerant from an industrial water cooler to a cylinder:

1. A repair valve with a pressure vacuum gauge should be connected to the bypass hole of the suction valve first, and the suction valve should be adjusted to the three-way position.

2. Turn the exhaust stop valve counterclockwise to the fully open position, unscrew the bypass plug of the exhaust stop valve, and install the multi-purpose connector.

3. Use a hose to connect the refrigerant cylinder in the air to the multi-purpose connector of the exhaust valve, but do not tighten the connector that connects the refrigerant cylinder end.

4. Open the exhaust stop valve slightly and remove the air from the connecting hose. Tighten the joint.

5, completely open the valve of the refrigerant cylinder, and continuously rinse the refrigerant cylinder with cooling water.

6. Pneumatic compressor slowly closes the exhaust stop valve clockwise. The refrigerant in the industrial chiller is gradually compressed into the refrigerant cylinder.

The refrigerant of the industrial chiller is recycled to the accumulator or the cylinder. As long as the recovery of the refrigerant is completed, the pressure at the suction end pressure gauge is 0.01 MPa. After the compressor is turned off, if the pressure does not rise, the refrigerant is expressed. After the recovery is completed, if there is a rebound in the pressure, the refrigerant is not recovered and it should be operated again according to the above method.