Hog Slat Inc. Newton Grove, NC USA AUG 2025 REV A2 24 Ventilation System 20A: EMPTY BARN LOW: Set the actual temperature an alarm should activate during the “EMPTY BARN” mode of operation. This is primarily to prevent freezing of equipment or water pipes when barn is not in use. 20B: ALARM STATUS: Alarm indication will illuminate beside the indicated fault. 20C. ALARM HIGH: Set the OFFSET value above the SET POINT to equal temperature an alarm should be used in case of over temperature condition. When OUTSIDE TEMPERATURE PROBE is enabled, if the outside temperature is greater than the set point, then the outside temperature replaces the SET POINT reference. HIGH ALARM temperature becomes “OFFSET HIGH + OUTSIDE TEMP” 20D. ALARM LOW: Set the OFFSET value below the SET POINT to equal temperature an alarm should be used in case of under temperature condition. 20E. CRITICAL HIGH ALARM TEMPERATURE: Sets alarm if indoor temperature is greater than this absolute value regardless of outside temperature. 20F. ALARM ZONE PROBE ERROR: Error will occur if probe(s) is lost in ZONE area during ZONE heating operation leaving no active probe to report temperature. ================================================================== 21. PROBES: The controller can operate with 1 or up to 4 probes. Select the probes that are connected using the on-screen buttons. When icon is pressed the icon will go from gray to green in color. Probes are averaged together to obtain the room temperature. Each probe is monitored in case of error. Anytime a probe error occurs, the remaining probes are averaged. An error indicator “ERR” will illuminate beside the probe that has the fault on the MAIN screen and on the PROBE screen. If only Probe#1 is 20A 20B 20C 20D 20E 20F
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