verifying the flame sensor microamp reading is essential

Utilizing genuine Weil McLain parts ensures the ignition system maintains the precise timing and voltage required to prevent delayed ignition or nuisance fault codes

enabling rapid swap-outs and maintenance without breaking the pipe seal

Dual Fan Speed Selector: Direct manual control over HI and LO fan settings provides immediate airflow adjustment based on ambient load

Johnson Controls PSMN40A24DS Power Supply Els PW 17895 verifying the flame sensor microampThe Johnson Controls PSMN40A24DS is a heavy duty, track mount linear DC power supply engineered for reliable performance in demanding HVAC and industrial control environments. This 120 Vac to 24 Vdc power supply provides a stable 1 amp output, making it an essential component for powering sensitive controllers, sensors, and actuators that require isolated DC voltage. Built with a 2 position on off toggle switch, it allows technicians to safely