Bard W24G2DA Installation Instructions Manual

Contents

Bard W24G2DA Installation Instructions Manual Manual pdf 35 page image

Manual 2100-592CPage 35 of 69Alarm OutputAlarm terminal is output connection for applicationswhere alarm signal is desired. This terminal is poweredwhenever compressor is locked out due to HPC or LPCsequences as described.NOTE: Both high and low pressure switch controls areinherently automatic reset devices. The highpressure switch and low pressure switch cutout and cut in settings are fixed by specificair conditioner or heat pump unit model. Thelockout features, both soft and manual, are afunction of the compressor control module.AdjustmentsAdjustable Delay-on-Make and Delay-on-Break TimerThe potentiometer is used to select delay-on-break timefrom 30 seconds to 5 minutes. Delay-on-make (DOM)timing on power-up and after power interruptions isequal to 2 minutes plus 10% of delay-on-break (DOB)setting:0.5 minute (30 seconds) DOB = 123 second DOM1.0 minute (60 seconds) DOB = 126 second DOM2.0 minute (120 seconds) DOB = 132 second DOM3.0 minute (160 seconds) DOB = 138 second DOM4.0 minute (240 seconds) DOB = 144 second DOM5.0 minute (300 seconds) DOB = 150 second DOM26. PHASE MONITORAll units with three phase scroll compressors areequipped with a three phase line monitor to preventcompressor damage due to phase reversal.The phase monitor in this unit is equipped with twoLEDs. If the “Y” signal is present at the phase monitorand phases are correct, the green LED will light.If phases are reversed, the red fault LED will be lit andcompressor operation is inhibited.If a fault condition occurs, reverse two of the supplyleads to the unit. Do not reverse any of the unit factorywires as damage may occur.