Hog Slat Inc. Newton Grove, NC USA March 2022 18 Evaporative Cooling System Operation Instructions New System Operation / Annual Start Up Several inspections and procedures should take place/be completed for newly installed system. (This process is also applicable for annual start up. 1. Before addition of water, remove any debris from the trough. This debris consists of but is not limited to PVC shavings, loose fasteners, trash, and leaves. The trough should be kept clear of debris constantly. 2. Tighten Trough Plug and fill trough with water. Inspect Trough and Bulk Head connections for any leakage. If there is any leakage, drain the Trough and correct joint where leakage was observed. 3. Ensure the strainer basket attached to the pump is full of water. FOR SUMP MAKE SURE TANK IS FULL BEFORE OPERATION Although the pump is self priming, it is highly recommended to fill the strainer basket with water. 4. Turn on the pump. 5. Adjust the flow of water through the spray bar by adjusting the PVC Ball Valve oriented vertically on the feed pipe for the Spray Bar. A correctly adjusted system should provide an even coating of water across the front of the pad without excess water evacuating the system from the pads. This adjustment should be done with facility operating at full tunnel as tunnel fans pull water into the pad and reduce the amount of water across the face of the pad. Winterizing the System 1. Remove Trough plug from the trough and allow all water to exit the Trough. During this process make sure all Ball Valves are completely open to evacuate the plumbing. 2. Remove plug for the strainer basket on the pump and allow all water to exit the pump. For sump system evacuate the tank of water. During this process make sure all Ball Valves are completely open to evacuate the plumbing. 3. Replace all plugs and close all ball valves to eliminate any objects from entering the system. 4. Remove pumps completely from system. Normal Operation 1. Please refer to Controller Manual for daily operation programming. 2. Ensure water levels are accurate and that the system is not over filled. The water level should be roughly 1” below the pads for correct operation. 3. The pads should be allowed to completely dry daily. 4. The system should shut down 30 minutes before the tunnel fans in order for pads to completely dry Issues PLEASE ALSO REFER TO EVAPORTIVE MEADIA DOCUMENT AT THE END OF THIS MANAUL
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