Furnace Plenum Thermostat for Bryant & Lennox, HH12ZB170, 47-25350-06

Gas Limit Furnace Thermostat | SHL512 | L190-30F | Replaces Bryant & Lennox HH12ZB170, 47-25350-06

Protect your heating system from overheating with this brand-new SHL512 gas limit furnace thermostat. Rated L190-30F, this high-limit switch opens at 190°F and resets at 160°F, helping maintain safe operating temperatures in residential and light commercial gas furnaces. Designed to replace Bryant® and Lennox® part numbers HH12ZB170 and 47-25350-06, it offers reliable thermal protection and OEM-grade performance.

⚙️ Features & Benefits:

• ✅ Opens at 190°F and resets at 160°F (30°F differential)
• Designed for use in gas furnaces and HVAC systems
• Durable construction with secure mounting tabs
• Brand New – Unused and ready to install
• Compact design for easy replacement and universal fit

Replaces Part Numbers:

HH12ZB170, 47-25350-06

✅ Fits Models:

Compatible with select Bryant and Lennox gas furnace models. Please refer to your unit’s service manual or model tag to confirm compatibility.

️ Installation Tips:

• Disconnect power and shut off gas supply before servicing
• Locate the existing limit thermostat on the furnace heat exchanger or plenum
• Remove mounting screws and disconnect wire terminals
• Install new thermostat in the same orientation and reconnect wires securely
• ✅ Restore power and gas, then test furnace operation and safety cutoff

Reliable protection. OEM-grade safety. Restore your furnace’s performance with this high-limit thermostat replacement.