How should you correctly replace the antifreeze in the industrial chillers?
Step 1: Drain the Old Antifreeze
First, turn off the power of the industrial chiller to ensure safety. Then, open the drain valve and completely drain the old antifreeze from the water tank. For smaller chillers, you may need to tilt the small chiller unit to thoroughly empty the antifreeze.
Step 2: Clean the Water Circulating System
While draining the old antifreeze, use clean water to flush the entire water circulating system, including pipes and the water tank. This effectively removes impurities and deposits from the system, ensuring smooth flow for the newly added circulating water.
Step 3: Clean the Filter Screen and Filter Cartridge
Long-term use of antifreeze may leave residue or debris on the filter screen and filter cartridge. Therefore, when replacing the antifreeze, it's essential to thoroughly clean the filter parts, and if any components are corroded or damaged, they should be replaced. This helps improve the filtration effect of the industrial chiller and ensures the quality of the cooling water.
Step 4: Add Fresh Cooling Water
After draining and cleaning the water circulation system, add an appropriate amount of purified water or distilled water to the water tank. Remember not to use tap water as cooling water because impurities and minerals in it can cause blockages or corrode the equipment. Additionally, to maintain system efficiency, cooling water needs to be replaced regularly.
Step 5: Inspection and Testing
After adding fresh cooling water, restart the industrial chiller and observe its operation to ensure everything is normal. Check for any leaks in the system and ensure all connections are securely tightened. Also, monitor the cooling performance of the industrial chiller to verify that it meets the expected cooling effect.
Source: https://www.teyuchiller.com/replace-the-antifreeze-in-industrial-chillers-with-purified-or-distilled-water