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this replacement pen arm ensures reliable data logging on 12-inch circular charts
Proportional Control: Allows for precise modulation rather than simple on/off operation
maintaining system pressure balance and thermal efficiency
It acts as a safety lockout to prevent the heat exchanger from cracking due to excessive heat
Which cable type is recommended for installation
Trane SWT3179 Pressure Switch Kit 323080-701 this replacement pen arm ensuresFor veteran HVAC contractors, the Trane SWT3179 Pressure Switch Kitwhich is functionally identical to the SWT03179is a critical component for restoring furnace ignition sequences. This 0. 8" WC setpoint switch is a Single Pole Double Throw (SPDT) configuration, making it highly versatile for monitoring induced draft blower performance and ensuring proper venting before the gas valve opens. Engineering wise, this OEM replacement part is built for snap