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000 BTU/hr to maintain set-point temperatures during extreme cold or defrost cycles
The double diaphragm provides an internal safety mechanism and enhances the balanced valve effect
providing reliable system protection
the 70021560 ensures mechanical compatibility and electrical alignment with existing blower assemblies (HLY
Trane CNT4356 Primary Control 321894-708 000 BTU/hr to maintain set-pointThe Trane CNT4356 Primary Control is a critical direct service replacement component engineered for high reliability oil furnace and boiler burner management. As a veteran grade HVAC part, this burner primary control manages the ignition cycle, monitors the CAD cell for flame verification, and executes safety lockouts to prevent hazardous oil accumulation in the combustion chamber. When you are on a service call for a Trane furnace that wont fire, the
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