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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
contaminated combustion air
ensuring proper refrigerant subcooling at the expansion device
5 LPM flow regulator
it is a full furnace pressure switch replacement solution
Always verify the temperature stamping on the original part to ensure the 70°F / 80°F range matches the manufacturer's specification for that specific serial number
Maxitrol TD121 Temperature Selector 30067439-890 contaminated combustion airThe Maxitrol TD121 Temperature Selector is a critical control component designed for Selectra Series 21 and 31 electronic gas modulation systems. Specifically engineered for make up air heating and indirect fired units with atmospheric burners, this remote selector provides precise setpoint management within a 55 90 degrees F range. Unlike standard thermostats, the TD121 functions as a remote setpoint adjuster, communicating directly with the A1010 or
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