Direct Retrofit Compatibility: Replaces AL-109

Common Technician Questions Is the Spirax-Sarco TD52 susceptible to air binding

maintaining the same bimetal sensing and electrical specifications

The Honeywell C7400A2001 is a professional-grade solid state enthalpy sensor designed for integration with economizer logic modules to optimize outdoor air intake based on total heat content

this unit features dual snap-acting SPDT switches to ensure precise boiler water level control and reliable low-water protection

Carrier 42QHNA2013BCH-R Blower Wheel 323080-701 Direct Retrofit Compatibility: Replaces AL-109Carrier 42QHNA2013BCH R Left Blower Wheel Notes Item is Non Cancelable Non Returnable