Lochinvar & A.O. Smith 100266139 Condensate Trap 321142-301 The Antunes Controls 8221210003 is

The Antunes Controls 8221210003 is a high-precision differential air pressure switch designed for critical monitoring of positive

this board serves as the primary interface for processing sensor inputs and executing relay logic to maintain setpoint accuracy

Industrial Compliance: Fully meets CSD1 requirements for boiler low water cutoff applications and carries UL 353 limit control recognition

it features 3/4" NPT inlet and outlet connections

and steam systems where rapid temperature changes and high pressures are constant factors for HVAC contractors

Lochinvar & A.O. Smith 100266139 Condensate Trap 321142-301 The Antunes Controls 8221210003 isThe Lochinvar & A. O. Smith 100266139 Condensate Trap Kit is a critical OEM replacement component engineered for high efficiency condensing boilers and water heaters. As a veteran technician knows, maintaining a clear condensate drain line is essential to prevent acidic moisture from backing up into the heat exchanger or combustion chamber. This genuine factory repair part features an integrated internal float mechanism designed to seal the trap and