This timer typically supports standard 120V AC applications with a 15-amp switch rating

Whether you are performing a heat exchanger swap or a vent system overhaul

Multi-Signal Compatibility: Supports floating or proportional inputs (0-10V

Rapid Installation: The Plug-In-Play architecture and modular cord dampers eliminate complex field wiring

reducing home-run wiring to the main controller

York S1-029-20423-037 Orifice 321894-709 This timer typically supports standardPrecision engineered for reliable combustion, the York S1 029 20423 037 Orifice is a high performance #37 furnace burner orifice designed to manage exact gas flow in high efficiency heating systems. Featuring a critical . 104 orifice diameter, this component ensures the correct air to fuel ratio required for optimal manifold pressure and burner performance. For service technicians, utilizing genuine York replacement parts like the S1 029 20423 037 is