Hog Slat Inc. Newton Grove, NC USA May 2024 REV IR 34 Ventilation System Temperature is above set-point Verify set-point is correct Stage 1 or Stage 2 fans do not turn off Incorrect wiring Confirm correct wiring per wiring diagram Minimum vent OFF time set to zero Correct time off as necessary Stage 1 or Stage fans have erratic operation incorrect motor curve assigned to motor Check motor type and make correct motor curve selection. Incorrect motor curve can cause fan to surge up and down in speed. Stage(s) 3,4 or 6 not operating Stage fuse blown Check 15A fuse for the affected stage Wired incorrectly Confirm correct wiring per wiring diagram Heat stages not working Number of heater(s) not selected. Go to Heat page and select the number of heaters and if cascaded or zones modes Heaters connected to wrong output Stages 5 and/or stage 6 are heat stages when heaters are selected. Refer to HEAT page for directions on assignment Stage fuse blown Check 15A fuse for the affected stage Mist stage not working Mist stage connected to wrong output Go to Mist page. Mist stage is assigned to last cooling stage available If no heaters are chosen, then Mist stage is stage 6. If 1 heater, Mist is stage 5. If 2 heaters, Mist is stage 4 Once heaters are chosen, activate Mist cooling, stage assignment will be illuminated Stage fuse blown Check 15A fuse for the affected stage Controller in Alarm Status One of several possible conditions has triggered Alarm Status Go to ALARM page to see Probe #1 failure or in the case of 2 zones, a loss of both probes in a zone High Alarm, temperature over Set-point + Alarm High Offset Low Alarm, Temperature under set-point - Alarm low Offset System error or unresponsive Power surge, flicker or other event may cause controller to produce an error. Disconnect the power for 10 seconds and restart controller. No setting will be lost. Stage indicator ON but no output or output is significantly delayed. Voltage selector is not set for correct supply voltage Disconnect the power and open controller cover. Find voltage selector switch on bottom board. Verify switch is set to correct incoming voltage. Typically issue is incoming supply is 120V and selector switch is set for 240V. Controller will appear to be working but outputs will either not work or have delayed reaction.
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