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the 800120 and SF-489-T are identical units
Enhanced Pressure Range: Extends the regulator’s capabilities to a 20-42" WC discharge range
While Maxitrol 325 series bodies can handle LP
this switch ensures reliable electrical continuity and minimal contact resistance in demanding mechanical environments
The Conbraco 10-301-05 is a high-capacity hot water pressure relief valve engineered specifically for residential and commercial hydronic heating systems
Trane CNT4364 Control Board Els PW 17895 the 800120 and SF-489-T areThe Trane CNT4364 Defrost Control Board serves as a critical OEM replacement component for high performance heat pump and packaged HVAC systems. This HVAC control module is engineered to monitor 24V AC signals and environmental conditions, managing the cycle between heating and defrost modes to prevent excessive ice accumulation on the outdoor coil. As the direct replacement for the legacy CNT2935 defrost board, the CNT4364 brings enhanced logic for
