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and 200 series ventilators
we recommend verifying the cabinet model number to ensure no air bypass occurs
making it an ideal choice for high-capacity radiators
providing reliable circuit management for furnaces and packaged units
Trane CNT4820 Limit 322056-301 and 200 series ventilatorsThe Trane CNT4820 is a specialized bi metal disc limit switch designed for critical thermal protection in heating and cooling systems. Engineered as a normally closed (N C) safety control, this SPST (Single Pole Single Throw) device features an auto reset (A R) function, ensuring the circuit automatically closes once temperatures return to a safe range below the 155F open temperature. As an HVAC high limit switch, the CNT4820 is built to handle the
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