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Soft-blob field with ribbon-tape seals — cool ice-lab sheet for description and returns.
This switch is calibrated as a high pressure switch with an opening pressure of 303 PSI
For automated temperature regulation
Safe Operation: Meets original factory specifications for resistance and amperage draw
which is the most efficient method for economizer operation
Is the Slant Fin 412-705-040 compatible with 120V systems
Trane SWT3221 Pressure switch 321702-401 This switch is calibrated asThe Trane SWT3221 Pressure Switch is an essential safety component designed for precise furnace draft inducer motor monitoring. Calibrated to a 1. 4" WC set point, this SPST pressure switch ensures the combustion blower is moving sufficient air to safely vent flue gases before allowing the ignition sequence to proceed. It features 1 4" barb connections for secure pneumatic tubing attachment and is built to withstand the high temperature environment of
