the DHY1471 is the official Trane update for the DHY0146 and maintains the same technical specifications and 1/2" connection size

The Nordyne 661029R is a precision-engineered #29 NG Main Burner Orifice specifically designed for Natural Gas furnace applications

maintaining the integrity of the spring seat is essential to prevent lateral stem loading and ensure the pneumatic control valve reaches its full travel specifications

Durable Construction: Built to withstand high-cycling environments in professional heating system maintenance applications

Nordyne 621451R Sequencer the DHY1471 is the officialThe Nordyne 621451R Sequencer is a critical 2 pole electric furnace control designed to manage the timed energization of heating elements and blower circuits. Built for 10KW and 12KW electric furnaces, this OEM replacement sequencer prevents massive electrical surges by staggering the activation of heat strips using internal resistive timing. As a veteran grade HVAC sequencer relay, it ensures that your system engages its various heating stages