The Johnson Controls P499VAP-101K is a commercial-grade electronic pressure transducer designed for precise HVACR system monitoring

Designed for continuous operation

This furnace pressure switch is factory-calibrated with a

Can this limit control be used in residential HVAC systems

Simplified Mounting: Includes standard conduit knockouts and mounting hardware for efficient field installation

Markel 28163005 Relay R-410A The Johnson Controls P499VAP-101K isThe Markel 28163005 Relay is a heavy duty high power HVAC time delay relay designed for precise sequencing in residential and industrial heating systems. Rated for up to 2. 3kW (2300W) at 240V, this SPST sequencer relay is a critical component for managing lead lag operations, fan delays, and multi stage heating cycles. It is specifically engineered for full compatibility with Markel, TPI Corporation, and Raywall equipment, including high demand