Hog Slat Inc. Newton Grove, NC USA MAY 2026 REV A6 19 Ventilation System 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. SELECT HEAT STAGE(S): Press the icon for the number of heaters to be used (Icon will turn green). If one heater is to be used, press the “1 Heater” icon. If two heaters are to be used, press “1 Heater” and “2 Heaters” icons. To deselect a heater choice, press the icon again and it will turn gray indicating it has been unselected. 18B. SELECT HEAT TYPE (ZONES): Press the icon for the heater arrangement. For ZONES press the “ZONES” icon which will turn green. Zone heating is when heaters are placed in different areas or rooms. Each heater operates independently and is controlled based on the Differential and Offset temperatures to control when they turn on and off as compared to the set point temperature. Probes 1 and 2 are assigned to Heater 1 and probes 3 and 4 are assigned to Heater 2. Probes can be turned off or not connected individually however if two heaters are used in 18A 18B 18C 18D
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