This forged brass valve body is a critical component for fan coil units

The Reznor 41604 Ignition Control is a critical OEM replacement part engineered for precise sequences in gas-fired heating systems

This valve is designed for use with standard thermocouples that generate the necessary millivolt signal to hold the magnet assembly open during normal operation

Common Questions Can the manual reset be bypassed for automatic operation

Common Installation & Compatibility Questions Is the HC21ZE121 interchangeable with the HC21ZE121A

Trane COL16259 Coil Assembly 322057-301 This forged brass valve bodyThe Trane COL16259 Aluminum Coil Assembly is a primary OEM replacement evaporator coil engineered to restore thermal transfer efficiency in Trane and American Standard air handlers. This 26 inch coil assembly features high grade all aluminum construction, providing superior resistance to formicary corrosion and common leak points found in traditional copper and aluminum designs. Designed to operate with both R 410A and R 22 refrigerants, this direct