HVAC: Cooling Tower Float Valve Installation/Replacement ( Cooling Tower Make Up Water Float valve)

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Float Valve Setup Instructions
After float valve installation, there will be some experimenting and analysis of the valve that may be required to balance the tower operation with makeup water. Normally, the setting of the float valve will be set so that zero water is wasted during pump shutdown through the overflow. However, the water level depth during the start up of your pump must be deep enough to ensure maximum pump suction.

To set the basin water level, adjust the wing nuts so that the make-up valve is completely shut when the water level gets to 1/2″ below the overflow connection. These settings will produce operating levels shown in your Maintenance and Operating Manual. To adjust make-up assembly see that manual for the manufacturers’ suggested operating levels. Set the bleed rate and desired cycles of concentration and then you can begin operation. It’s always safe to let it run for 24 hours before you check and readjust.

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