Skip to product information
1 of 1

Lochinvar TST2409 Inlet/Outlet Bypass Sensor (82 inch) 100233518

Lochinvar TST2409 Inlet/Outlet Bypass Sensor (82 inch) 100233518

Brand: LOCHINVAR SKU: TST2409
Regular price $194.96 USD
Regular price Sale price $194.96 USD
Sale Out of Stock - Call to Order
Ships Direct from Distribution β€” Dispatches in 24–48 Hrs
Quantity
Official TIPS Contract Awarded Vendor Badge

TIPS Contract Vendor

We are an officially awarded purchasing cooperative vendor.

πŸ“‹ Procurement & Shipping Notice

  • LTL Freight Dispatch: Heavy commercial units ship directly via insured LTL carrier with delivery coordination included.
  • Project Timelines & Submittals: Need guaranteed delivery dates, formal submittals, or tax-exempt processing?

πŸ‘‰ Request a Commercial Quote or contact our procurement team for direct freight scheduling.

🏒

Corporate Procurement & PO Processing

Formal Purchase Orders (POs) and tax-exempt ordering are accepted for commercial contractors and institutional facilities.

Apply for Trade Account & Terms β†’

Product Description

Lochinvar TST2409 is an inlet/outlet bypass sensor that monitors inlet and outlet temperatures for proper bypass operation in Lochinvar Intelli-Fin IB and IW series boilers and water heaters. It uses a high-sensitivity thermistor in a 1/2 inch NPT threaded housing and includes an 82 inch lead for connection. The sensor maintains temperature differential for bypass control to reduce short-cycling and protect the heat exchanger as an OEM replacement.

  • Inlet/outlet bypass temperature sensor for Intelli-Fin IB/IW 1500, 1700, 2000 series
  • High-sensitivity thermistor element with 1/2 inch NPT threaded housing
  • 82 inches end-to-end lead length for reach and connection; OEM part TST2409 / 100233518

Product Highlights

Inlet/outlet bypass sensing; 1/2 inch NPT; 82 inch lead

Product Information

Standard Information

  • Brand: LOCHINVAR
  • Manufacturer Part Number: TST2409

Technical Specifications

  • Brand: Lochinvar
  • MPN: TST2409
  • Manufacturer Part Number: 100233518
  • Item Name: Inlet/Outlet Bypass Sensor
  • Function: Inlet/outlet bypass temperature sensing for bypass control
  • Lead Length: 82 inches (end to end)
  • Thread Size: 1/2 inch NPT
  • Sensing Technology: High-sensitivity thermistor
  • Compatibility: Intelli-Fin IB/IW 1500, 1700, 2000 and compatible Lochinvar IB/IW/IBL/IBN/IWL/IWN/PBL/PBN/PFL/PFN series models
  • Manufacturer: A. O. Smith Corporation
  • Housing Material: Brass or stainless (NPT threaded housing)
  • Part Number (SKU): 100233518
View full details