| Setpoint Range: | .1" to 10" WC |
|---|---|
| Max Pressure (PSI): | 0.5 |
| Switch: | SPDT |
| Electric Connection: | Screw Terminals |
| Operating Temp Range: | -40°F to 180°F |
| Mount: | Diaphragm Vertical |
| Features: | Delay Timer |

The correct cross reference for model FS-751-185 would be SKU: FS-751-337. Here is a link: http://www.supplyhouse.com/Cleveland-Controls-FS-751-337-SPDT-Fixed-Point-Air-Pressure-Sensing-Switch-with-Delay-Timer-05-W-C
The diagram can be found here : http://www.unicontrolinc.com/test_cleveland_controls/assets/pdf/FS-751-337.00.pdf