Trane American Standard SWT01936 OEM High Temperature Limit Switch – Opens at 120°F, Closes at 90°F – HVAC Safety Control

Product Description

The Trane American Standard SWT01936 High Temperature Limit Switch is an OEM temperature-actuated safety control designed for compatible Trane and American Standard HVAC equipment.

Featuring an opening temperature of 120°F and a closing temperature of 90°F, this high-temperature limit switch monitors temperature conditions and changes its electrical contact state when the specified operating thresholds are reached.

The SWT01936 Temperature Limit Switch opens its contacts when the monitored temperature reaches approximately 120°F and automatically returns to its normal closed state when the temperature decreases to approximately 90°F.

This 30°F temperature differential helps provide temperature-responsive switching for approved HVAC control and safety applications.

Designed as an equipment-specific replacement, the SWT01936 helps maintain the manufacturer's intended temperature protection and control functions when installed in compatible systems.

Key Features & Function

• Brand: Trane / American Standard
• Manufacturer Part Number: SWT01936
• OEM Description: Switch; High Temperature Limit
• Genuine OEM replacement temperature switch
• Opening Temperature: 120°F (48.9°C)
• Closing Temperature: 90°F (32.2°C)
• Temperature Differential: 30°F
• Automatic temperature-responsive reset operation
• Opens the electrical contacts at the specified high-temperature threshold
• Closes the electrical contacts after the monitored temperature decreases
• Supports HVAC temperature safety and control functions
• Designed for compatible Trane and American Standard equipment

Product Details & Specifications

Specification Note: The opening and closing temperatures are based on the supplied OEM description. Electrical ratings, physical dimensions, mounting style, and specific equipment compatibility should be verified using manufacturer documentation.

HVAC Depot Pro Tip

A high-temperature limit switch that repeatedly opens may indicate an actual overheating condition rather than a defective switch.

Before replacing the Trane SWT01936, inspect the equipment for abnormal operating temperatures, airflow restrictions, and electrical problems.

Recommended diagnostic checks:

1. Verify the complete equipment model and serial number.
2. Confirm the original limit switch part number is SWT01936.
3. Check the monitored area for excessive temperatures.
4. Inspect filters, airflow passages, and blower operation where applicable.
5. Examine switch terminals and wiring connections.
6. Test the switch according to manufacturer procedures.
7. Confirm the replacement opens at 120°F and closes at 90°F.
8. Verify the switch is mounted in the correct sensing location.

HVAC Depot Pro Tip: The SWT01936 has a 30°F operating differential. A replacement with different opening or closing temperatures can affect equipment operation and safety protection.

Important: Never bypass or jumper a high-temperature safety switch. Correct the cause of repeated overheating before returning the system to operation.

Disconnect electrical power before servicing. Installation and testing should be performed by a qualified HVAC technician.

Equipment / Model Compatibility

The Trane SWT01936 is intended for select Trane and American Standard HVAC equipment requiring this specific OEM high-temperature limit switch.

Exact compatible equipment models have not been independently verified.

Before ordering, confirm:

• Complete equipment model number
• Equipment serial number
• Original switch part number
• Required 120°F opening temperature
• Required 90°F closing temperature
• Automatic-reset operation
• Electrical terminal configuration
• Mounting dimensions and installation position

Compatibility Notice: SWT01936 is not a universal temperature limit switch. Confirm manufacturer-approved compatibility before purchasing.