Hog Slat Inc. Newton Grove, NC USA February 2022 9 Evaporative Cooling System Winterization and Operation When the Evap system is winterized for the season the batteries should be removed. Failure to do so may result in corrosion and damage to the unit. If desired the entire unit along with valve can be removed and stored during the winter During operation in addition to testing the valve and photocell, depressing the test button and releasing will result in the out led will turn on and off for a number that represents the number of days since last flush. TO ENSURE PROPER OPERATION BATTERIES SHOULD BE REPLACED AT THE BEGINNING OF EVERY COOLING SEASON!
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