the Fenwal Thermoswitch is a standalone electromechanical device that opens the circuit on temperature rise without the need for additional power or logic controllers

The Trane TRR1898 Transformer is a heavy-duty 208/230V to 24V step-down transformer designed for critical HVAC control circuit applications

It is critical to match the kW rating specified by the manufacturer for your specific air handler model to ensure proper airflow-to-heat ratios and electrical circuit sizing

audible grinding or rattling noises during startup

and building automation systems

Laars Heating Systems RE2058300 Aquastat Well 324846-701 the Fenwal Thermoswitch is aThe Laars Heating Systems RE2058300 Aquastat Well is a critical OEM replacement part designed for integration into commercial and residential hydronic heating systems. Built to provide a sealed environment for temperature sensing bulbs, this 1 2" NPT male aquastat well ensures the protection of the internal sensor from direct fluid contact while maintaining high thermal conductivity for precise cycling. The RE2058300 is precision machined with MNPT