York Parts S1-02529041004 Gas Furnace Temperature ControlGas Furnace Temperature Control is a critical safety and performance component for modern heating systems. The York Parts S1 02529041004 Temperature Control (High Limit) is designed for use on 2 Stage Downflow Horizontal Natural Gas Furnaces, delivering dependable protection and precise temperature management. With a robust high limit design, this temperature control detects and responds to rising furnace temperatures, helping prevent overheating and

Includes: BBR12 Orifice

The Allanson unit provides precise ignition with a 120V AC input

This unit also serves as a direct replacement for older B-series pumps

Used On 040-08

Straight-through

Part Numbers: T-4002-201

Auxiliary switch ratings: 4

consistent boiler water levels

user-friendly control

Key features include built-in safety timing and monitoring to maintain boiler efficiency and protection:

Application: Designed for gas-fired boiler sensing and maintenance

The device integrates with standard control circuits