Whether you are performing routine maintenance or a full sensor upgrade

compatibility is determined by the specific thermostatic element and cartridge installed for R-22

ensuring the burner head remains secured in the optimal firing position for peak performance

and UDZ series units (200-400k BTU)

including model CP 991 to 2071 commercial pool heaters and compatible boilers

Fenwal 35-605601-001 Module Freon Whether you are performing routineThe Fenwal 35 605601 001 is a robust 24V direct spark ignition control designed for precise combustion management in gas fired heating systems. This microprocessor based module is engineered with a 4 second Trial for Ignition (TFI) and operates with 0 second pre purge, ensuring immediate ignition sequences for high demand applications. As a veteran technician knows, the Series 35 60 architecture offers superior timing repeatability compared to older