Bard S26H1-A Installation Instructions Manual

Bard S26H1-A Installation Instructions Manual Manual pdf 19 page image

Manual 2100-527HPage 19 of 29120*SW1 SW2 TIME (SEC)OFFOFFONONOFFONOFFON3060180MIS-2668 AOFFLOW PRESSURE BYPASS TIMER SWITCH*(FACTORY SETTING 120 SECONDS)ACCUMULATED DEFROST TIME TIMER(FACTORY SETTING 60 MIN.)ONFIGURE 12DEFROST CONTROL BOARDLow Pressure Switch Bypass Operation - The control has aselectable (SW1) low pressure switch bypass set up to ignorethe low pressure switch input during the first (30, 60, 120 or180 seconds) of “Y” operation.After this period expires, the control will then monitor the lowpressure switch input normally to make sure that the switch isclosed during “Y” operation.High Pressure Switch Operation - The control has a built-inlockout system that allows the unit to have the high pressureswitch trip up to two times in one hour and only encountera “soft” lockout. A “soft” lockout shuts the compressor offand waits for the pressure switch to reset, which at that pointthen allows the compressor to be restarted as long as the5-minute short cycle timer has run out. If the high pressureswitch trips a third time within one hour, the unit is in “hard”lockout indicating something is certainly wrong and it willnot restart itself.