When you're out in the field facing a leaking stem or a restricted 5/8" suction line

especially in outdoor installations

whether configured for a single furnace (Series 20) or a multi-furnace manifold (Series 30) involving up to four units

Built with a rugged aluminum body and resilient NBR seals

to match specific system requirements

Bard MC4002-A Control Els PW 29614 When you're out in theThe Bard MC4002 A is a professional grade solid state dual unit lead lag controller engineered for precision sequence management in redundant HVAC systems. Designed as the direct replacement for MC4000 A and MC4001 A, this advanced controller provides automated control over two independent units, ensuring equalized run time and automatic switch over during mechanical failure. The integrated base alarm board offers critical diagnostic outputs for