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(Optional) Antifreezing
Context
If the FusionCol8000-C will be idle for a long time, ensure that the circulation water inside the system has a temperature no lower than 3°C, or has used antifreeze liquid, otherwise, the heat exchanging pipes of the smart cooling product may freeze up and crack. If the water temperature does not meet the requirement, drain all water out of the FusionCol8000-C.
Procedure
- Remove the plugs from the drainage needle valves 1 and 2 of the heat exchanger, to drain water naturally until no water flows out.Figure 5-24 Positions of the drainage needle valves of a heat exchanger
(1) Drainage needle valve 1
(2) Drainage needle valve 2
- Connect a nitrogen cylinder to the drainage needle valve 1 of the heat exchanger, set the intake pressure to 0.5 MPa, and blow nitrogen into the valve for 10 minutes, so that the water flows out of the drainage needle valve 2.
- Connect the nitrogen cylinder to the drainage needle valve 2 of the heat exchanger, set the intake pressure to 0.5 MPa, and blow nitrogen into the valve for 10 minutes, so that the water flows out of the drainage needle valve 1.
- Stop the nitrogen cylinder and wait for 20 minutes.
- Start the nitrogen cylinder and repeat Step 2–Step 3 for three times.
