Trane SWT3221 OEM furnace pressure switch is designed for two-stage Trane gas furnaces and compatible HVAC systems using natural gas or liquid propane. This SPST/SPDT furnace pressure switch features a -1.4 in-WC setpoint with -1.36 in-WC open and -1.55 in-WC close ratings, an 18A electrical rating, and 1/4 in x 0.032 in quick-connect terminals to verify combustion airflow and ensure safe ignition. This UL recognized switch installs quickly, restores reliable ignition, helps prevent nuisance lockouts, and protects critical HVAC components.
The SWT03221 pressure switch can be used with these Trane models:
| AUC1D120A9601AD | TUC1D120A9601AC |
| TUC1D120A9601AB | TUC1D120A9601AF |
| AUX1D120A9H51BB | AUX1D120A9H51BA |
| AUH1B060A9361AB | TUX1C100A9361AC |
| CUX1D120A9601AC | TUH1B060A9H31BA |
| AUX1C100A9H41BB | TUX1D120A9H51BA |
| TUC1C100A9481AB | AUX1C100A9H41BA |
| AUC1D120A9601AB | TUC1C100A9481AE |
| TUH1B060A9361CA | AUH1B060A9H31AA |
| AUX1D120A9601AC | TUX1C100A9481AC |
| TUC1D120A9601AE | AUC1D120A9601AC |
| TUX1C100A9H41BA | AUX1C100A9481AC |
| TUC1C100A9481AC | AUC1C100A9481AC |
| AUH1B060A9361CA | M951P060BU36AAB |
| AUC1C100A9481AB | TUX1D120A9601AB |
| TUH1B060A9361CB | M951P060BU36AAC |
| AUC1C100A9481AE | TUX1C100A9361AB |
| AUX1C100A9481AB | TUH1B060A9H31AA |
| AUC1C100A9481AD | AUC1D120A9601AE |
| TUX1C100A9481AB | AUH1B060A9H31BA |
| AUC1C100A9481AF | TUC1C100A9481AD |
| TUX1D120A9601AC | AUX1D120A9601AB |
| AUC1D120A9601AF | AUH1B060A9361AA |
| CUX1D120A9601AB | M951P060BU36AAA |
| AUH1B060A9361CB | TUH1B060A9361AB |
| TUC1C100A9481AF | AUX1C100A9361AB |
| TUH1B060A9361AA | CUX1C100A9481AB |
| TUX1C100A9H41BB | TUC1D120A9601AD |
| AUX1C100A9361AC | TUX1D120A9H51BB |
| Current Rating | 18 Amps |
|---|---|
| Switch Type | Single-Pole, Single-Throw |
| Approvals | UL Recognized |
| Pressure Rating | -1.36" Wc Open, -1.55" Wc Close |
| Number of Poles | 1 |
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