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The Hydrotherm 62-3668 is commonly found in Hydrotherm HC series (HC-65D through HC-165D)
Precise Thermal Calibration: Calibrated for a 205°F cut-out and 175°F cut-in to ensure accurate overheat protection
Robust Construction: Built with a durable aluminum housing and high-leverage linkage for precise flow control from full load down to pilot flow
The Trane CNT1220 (officially updated to CNT01220) is a high-limit thermal safety control engineered for precise HVAC over-temperature protection
This model replaces the legacy Danfoss 014-0143
York S1-028-12403-700 Sheave Els PW 17895 The Hydrotherm 62-3668 is commonlyThe York S1 028 12403 700 Sheave is a professional grade, 1 groove variable pitch pulley designed for precise HVAC blower speed adjustment in commercial air handling units. Engineered with a 1 3 8" bore and a 7. 50" outer diameter, this OEM component allows technicians to fine tune fan RPM and airflow volume to meet specific static pressure requirements. The variable pitch design is compatible with 4L, 5L, A, and B section V belts, providing a