a blown low-voltage fuse (typically 3A or 5A)

The 120F0283 requires a 200-230V 3-phase power supply

making it standard for most Carrier top-discharge fans

The Armstrong International 15B5 is a high-performance float and thermostatic steam trap designed for industrial and commercial heating applications

Honeywell V4295A1023 Gas Valve 318423-701 a blown low-voltage fuse (typicallyThe Honeywell V4295A1023 is a rugged, normally closed solenoid gas valve designed for tight shut off and reliable flow control in medium pressure gas systems. This 3 4 inch NPT valve features a straight through, non offset die cast aluminum body, providing a maximum flow capacity of 645 CFH (cubic feet per hour) at a 1 inch pressure drop. Engineered for standard 120 VAC high limit or primary safety control circuits, it handles a 2 PSI maximum pressure