632492R Nordyne PRESSURE SWITCH -0.50"WC SPST
632492R Nordyne PRESSURE SWITCH -0.50"WC SPST
Product Overview
The 632492R Nordyne pressure switch monitors inducer draft in residential gas furnaces and air handlers, ensuring safe system performance by verifying that the inducer motor creates sufficient vacuum before ignition. Factory-set to actuate at –0.50" water column, this direct-fit OEM replacement delivers consistent operation and accurate response to protect burners from unvented combustion conditions.
Technical Specifications
| Parameter | Specification |
|---|---|
| Setpoint (trip pressure) | –0.50" W.C. (nominal) |
| Switch type | Differential vacuum |
| Contact configuration | SPST; normally open until vacuum reached then closed |
| Proof pressure | 2.5" W.C. (maximum) |
| Burst pressure | 5.0" W.C. (maximum) |
| Electrical rating | 3 A @ 120 VAC (resistive) |
| Inlet fitting | 1/8" hose barb |
| Terminals | ¼" quick-connect spade |
| Housing material | High-temperature thermoplastic |
| Operating temperature range | –40 °F to 180 °F (–40 °C to 82 °C) |
| Dimensions (L × W × H) | 2.0" × 1.2" × 1.3" (approx.) |
| Weight | 0.10 lb (45 g) |
Cross-Reference Part Numbers
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Nordyne 632492R
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Nordyne 632492
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Coleman 632492R
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Robertshaw PS205
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White-Rodgers 36D47
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Foster A501A
Compatibility
The 632492R pressure switch fits a wide range of inducer-equipped gas furnaces and air handlers across major OEMs:
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Nordyne and Coleman N5, N6, P5, P6 series
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York and Westinghouse standard-efficiency units
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Goodman and Amana GSX/GMV series
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Bryant, Payne, and Rheem single-stage models
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American Standard Basic Heat and Pro-Line lines
Technician Notes
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Always disconnect power and verify zero voltage before servicing.
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Use clean, flexible 1/8" tubing; avoid kinks and secure with proper clamps.
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Mount the switch in the original orientation and location to maintain calibration.
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Test actuation with a calibrated manometer or vacuum pump: continuity should close at –0.50" W.C. under suction and open at ambient.
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Inspect tubing and fittings for wear or leaks; replace as needed to ensure accurate performance.
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Carry spare 632492R switches, tubing, and clamps on service calls for rapid field replacement.
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Consider bundling with inducer gaskets and control fuses to create a comprehensive safety-kit offering.