1. Product Overview
The White-Rodgers 3F01-110 Snap Disc Fan Control is a reliable thermal switch designed for automatic regulation of fan or blower operation in various heating, ventilation, and air conditioning (HVAC) systems. This control is engineered for quick on-job replacement and features a flanged airstream mount for secure installation.
Key Features:
- Designed for automatic fan or blower control based on temperature.
- Features a Cut-In temperature of 110°F (43°C).
- Features a Cut-Out temperature of 90°F (32°C).
- Flanged airstream mount for easy and secure installation.
- Mounting holes are compatible with standard 3/4-inch snap discs.
- Single Pole Single Throw (SPST) contact type.
Figure 1: Front view of the White-Rodgers 3F01-110 Snap Disc Fan Control, showing the metallic disc and black base with electrical terminals.
2. Safety Information
Please read and understand all instructions before installing or operating this product. Failure to follow these instructions may result in property damage, personal injury, or death.
- Electrical Hazard: Disconnect all power to the appliance or system before installing or servicing the control. Always use appropriate lockout/tagout procedures.
- Qualified Personnel: Installation and servicing should only be performed by a qualified, experienced technician.
- Proper Application: Ensure this control is suitable for your specific application. Refer to the specifications section for details.
- Wiring: All wiring must comply with local and national electrical codes.
- Temperature Limits: Do not expose the control to temperatures outside its specified operating range.
3. Setup and Installation
This section provides general guidelines for installing the White-Rodgers 3F01-110 Snap Disc Fan Control. Specific installation procedures may vary depending on the appliance or system.
3.1 Pre-Installation Checks
- Verify that the power supply to the appliance is disconnected.
- Confirm that the 3F01-110 model is the correct replacement or new installation part for your system.
- Inspect the control for any visible damage before installation.
3.2 Mounting
The 3F01-110 features a flanged airstream mount and is designed to fit standard 3/4-inch snap disc mounting holes.
- Locate the appropriate mounting position within the airstream of the fan or blower, ensuring good thermal contact.
- Align the mounting holes on the control's flange with the existing or prepared mounting holes.
- Secure the control using appropriate fasteners (not included) to ensure a stable and vibration-free installation.
Figure 2: Side view of the White-Rodgers 3F01-110 Snap Disc Fan Control, highlighting the flanged mounting plate and electrical terminals.
3.3 Wiring
The 3F01-110 is a Single Pole Single Throw (SPST) control with Normally Open contacts and screw terminals for electrical connections.
- Identify the two electrical terminals on the control.
- Connect the appropriate electrical wires from your fan or blower circuit to these screw terminals. Ensure connections are tight and secure.
- Verify that all wiring conforms to the appliance's wiring diagram and all applicable electrical codes.
- Once wiring is complete and secure, restore power to the appliance.
Figure 3: The White-Rodgers 3F01-110 Snap Disc Fan Control held in a hand, illustrating its compact size and dimensions (approximately 1.4 inches / 3 cm in height).
4. Operating Instructions
The White-Rodgers 3F01-110 Snap Disc Fan Control operates automatically based on the ambient temperature at its mounting location.
- Fan Activation (Cut-In): When the temperature at the control's location rises to 110°F (43°C), the internal snap disc will close the electrical contacts, activating the connected fan or blower.
- Fan Deactivation (Cut-Out): When the temperature at the control's location drops to 90°F (32°C), the internal snap disc will open the electrical contacts, deactivating the connected fan or blower.
- This automatic operation ensures that the fan runs only when necessary to circulate heated or cooled air, optimizing system efficiency.
5. Maintenance
The White-Rodgers 3F01-110 Snap Disc Fan Control is designed for reliable, long-term operation with minimal maintenance. However, periodic inspection is recommended.
- Annual Inspection: Annually, or as part of routine HVAC system maintenance, inspect the control for any signs of physical damage, corrosion, or loose wiring connections.
- Cleaning: Ensure the metallic disc and surrounding area are free from dust, debris, or obstructions that could impede proper temperature sensing. Use a soft, dry cloth for cleaning. Do not use liquids or abrasive cleaners.
- Replacement: If the control shows signs of malfunction, inconsistent operation, or physical damage, it should be replaced by a qualified technician.
6. Troubleshooting
If you experience issues with your fan or blower system, consider the following troubleshooting steps related to the snap disc control.
6.1 Fan Does Not Turn On
- Check Power: Ensure the appliance has power and the fan motor is operational.
- Temperature Check: Verify that the temperature at the control's location has reached or exceeded 110°F (43°C).
- Wiring: Inspect wiring connections for looseness or damage.
- Control Failure: If the temperature is above the cut-in point and the fan still does not activate, the control may be faulty and require replacement.
6.2 Fan Does Not Turn Off
- Temperature Check: Verify that the temperature at the control's location has dropped below 90°F (32°C).
- Control Failure: If the temperature is below the cut-out point and the fan continues to run, the control's contacts may be stuck closed, indicating a faulty unit that requires replacement.
7. Specifications
| Specification | Detail |
|---|---|
| Model Number | 3F01-110 |
| Brand | Emerson (White-Rodgers) |
| Contact Type | Normally Open (SPST) |
| Cut-In Temperature | 110°F (43°C) |
| Cut-Out Temperature | 90°F (32°C) |
| Voltage | 120 Volts (AC) |
| Terminal Type | Screw |
| Mounting Type | Flanged Airstream Mount (3/4" snap disc compatible) |
| Material Type | Plastic (base) |
| Item Dimensions (L x W x H) | 1 x 5 x 8.25 inches |
| Item Weight | 0.7 ounces |
| UPC | 786710001697 |
8. Warranty and Support
For warranty information or technical support regarding the White-Rodgers 3F01-110 Snap Disc Fan Control, please refer to the official Emerson or White-Rodgers website or contact their customer service directly. Keep your purchase receipt for warranty claims.
Emerson Customer Support: For assistance, visit the Emerson Contact Us page or consult your product packaging for specific support details.
