This A28 Series manual reset thermostat features two SPDT switch actions

to match specific system requirements

The Johnson Controls F261MAH-V01C is a contractor-grade liquid flow switch designed for heavy-duty monitoring in HVAC and industrial fluid systems

this 7/8" ODF unit features a specialized U-tube design that ensures maximum refrigerant flow with a minimal pressure drop

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

Bard MC4002-A Control Els PW 29614 This A28 Series manual resetThe 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