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8406-073 OBSOLETE
- Pressure Switch .35" WC
Bard part number 8406-073 is an OEM air pressure switch rated at 0.35 in. water column that is used in Bard equipment to verify proper airflow and draft before the system is allowed to operate. In the field, this switch helps protect the unit by proving the inducer or air movement is doing its job, so the control circuit can safely energize the next sequence of operation. Replacing a weak, sticking, or out of calibration pressure switch with the correct Bard 8406-073 restores reliable safeties and reduces nuisance lockouts, but it is important to confirm the setpoint and tubing or port routing match your specific model and serial range.
Official replacement(s):
8406-086
- Press Switch .35"W.C.Open On Fall