Johnson Controls TEC2126H-4 Control 30067439-890 or high-draw contactors

or high-draw contactors

preventing combustion leaks

Maintenance-Free Design: Double EPDM O-rings and a fiberglass-reinforced Teflon seat ensure a bubble-tight shutoff without the need for periodic packing adjustments

When should the A-4110-604 element be replaced

Johnson Controls TEC2126H-4 Control 30067439-890 or high-draw contactorsThe Johnson Controls TEC2126H 4 is a professional grade N2 networked thermostat controller engineered for precision climate management in hospitality fan coil applications. As the direct replacement for TEC2126 H2, this unit facilitates seamless integration into existing Metasys Building Automation Systems (BAS) without requiring extensive hardware reconfiguration. Designed to handle two pipe or four pipe fan coil units, it supports on off or floating