Hog Slat Inc. Newton Grove, NC USA MAY 2026 REV A6 17 Ventilation System 15B: MINIMUM VENT CYCLE: Set the amount of on time and off time. Stage 1 fan will follow this cycle anytime room temperature is below SET-POINT to maintain adequate ventilation. To disable cycle, set time OFF to zero. NOTE: Fan will start at full speed for 3 seconds then drop to the minimum speed setting anytime the fan turns on. Minimum vent cycle begins at 0.3F [.17C] degrees below set point 15C: HUMIDITY COMPENSATION: Stage 1 fan speed can be automatically increased based on relative humidity levels. Humidity probe is required for this operation. The compensation percentage is the amount of speed increase. Once the humidity is greater than the “Humidity level set point”, the speed of the stage 1 fan will proportionally increase until the humidity is 10% greater than the set point at which time the fan will be running at full compensation level. Example: Minimum speed = 50%, Humidity compensation % = 30. When humidity is equal to or greater than 10% above the humidity level set point, stage 1 fan speed will be (50+30) = 80%. ================================================================== 16. STAGE 2 PAGE 16A: STAGE 2 MINIMUM SPEED PERCENTAGE %: Sets the minimum speed the stage 2 fan motor can operate. 16B: DE-ICING CYCLE: This cycle is to help de-ice stage 2 fans during winter weather. When activated, stage 1 fans turn off and stage 2 fans are started at full speed for 3 seconds, and then operated at stage 2 minimum speed. This operation follows the de-icing cycle. De-icing cycle time: Amount of time stage 1 fans operate according to their programming. When this time has elapsed, stage 1 turns off. De-icing Time: Once stage 1 fans turn off, stage 2 fans start up and will run until the de-icing time has elapsed. Repeat cycle. 16A 16B
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