which are standard for most commercial pneumatic tubing fittings and 1/4-inch OD adapters

As a three-way modulating valve

2 kN dynamic and 15

Operating at 440 VAC

How do I troubleshoot a 62-22578-01 module

Fenwal 35-665938-215 Control Board 30067439-890 which are standard for mostThe Fenwal 35 665938 215 is a robust 120 240V Hot Surface Ignition (HSI) control board designed for precise automatic ignition system management in commercial and industrial HVACR applications. This microprocessor based gas ignition control provides consistent 120V HSI trial for ignition, utilizing remote flame sensing technology to ensure safe burner operation. Engineered for versatility, this Fenwal 35 series model handles line voltage requirements