Hog Slat Inc. Newton Grove, NC USA AUG 2025 REV A9 19 Ventilation System 17B: STAGE 2: Variable output stage. OFFSET 2 is the temperature above stage 1 when the stage 2 fan(s) turn on. BW 2 is the temperature range between when the stage operates at minimum speed up to full speed. Example shown above, stage 2 turns on at 72F and runs at minimum speed. Speed will proportionally increase as temperature increases to 73. At this time stage 2 fans will be operating full speed. 17C. STAGE 3: ON/OFF output. DIFF (3) equals the temperature above stage 2 when stage 3 is to come on. Stage 3 turns off when temperature falls below the OFF temperature setting. 17D. STAGE 4: ON/OFF output. DIFF (4) equals the temperature above stage 3 when stage 4 is to come on. Stage 4 turns off when temperature falls below the OFF temperature setting. 17E. STAGE 5: ON/OFF output. DIFF (5) equals the temperature above stage 4 when stage 5 is to come on. Stage 5 turns off when temperature falls below the OFF temperature setting. 17F. STAGE 6: ON/OFF output. DIFF (6) equals the temperature above stage 5 when stage 6 is to come on. Stage 6 turns off when temperature falls below the OFF temperature setting. ================================================================== 18. HEAT: Heater(s) are assigned to either Stage 5 or 6 or both. If one heater is used, then it is assigned to Stage 6. If two heaters are being used then Heater 1 is assigned to Stage 5 and Heater 2 is assigned to Stage 6. Two types of heating can be selected. Either Cascading or Zones. 18A 18B 18C 18D
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