1. Product Overview
The Intermatic FD12HC is a 12-hour spring-loaded wall timer designed to automatically limit the 'ON' time of various electrical loads such as fans, lights, motors, and heaters. This energy-saving timer operates without electricity and is intended to replace any standard wall switch, whether single or multi-gang. It features an easy 'press-on' knob design and 'up front' terminal connections for straightforward installation.
Key Features:
- Energy Saving: Operates mechanically without requiring electricity.
- Versatile Application: Suitable for fans, lighting, motors, and heaters.
- Easy Installation: Designed for simple replacement of standard wall switches with convenient terminal connections and a 'press-on' knob.
- Flexible Design: Supplied with a molded ivory time dial plate compatible with both toggle and decorator style switch plates.
Image 1: Intermatic FD12HC 12-Hour Spring-Loaded Wall Timer in Ivory.
2. Specifications
| Feature | Detail |
|---|---|
| Model Number | FD12HC |
| Color | Ivory |
| Brand | Intermatic |
| Material | Plastic |
| Product Dimensions | 1.25"D x 1.75"W x 4.13"H |
| Item Weight | 4.8 Ounces |
| Timer Range | 12-Hour |
| Operation Type | Without Hold on Timer |
| Voltage | 125 Volts |
| Certifications | CSA, UL |
| Operating Temperature | 32 to 104 °F (0 to 40 °C) |
3. Installation
The Intermatic FD12HC timer is designed for easy installation, replacing a standard wall switch. Always ensure power is turned off at the circuit breaker before beginning any electrical work.
Installation Steps:
- Turn Off Power: Locate the circuit breaker controlling the switch you intend to replace and turn off the power. Verify that the power is off using a voltage tester.
- Remove Old Switch: Carefully remove the existing wall plate and unscrew the old switch from the wall box. Disconnect the wires from the old switch, noting which wire is connected to the 'line' (power source) and 'load' (appliance).
- Connect Wires: The FD12HC timer features 'up front' terminal connections. Connect the hot (line) wire to the terminal marked 'LINE' and the load wire to the terminal marked 'LOAD'. Ensure all connections are secure using wire nuts if necessary. Connect the ground wire to the timer's ground terminal.
- Mount Timer: Gently push the wired timer into the wall box, being careful not to pinch any wires. Secure the timer to the wall box using the provided screws.
- Attach Faceplate and Knob: The timer comes with a molded ivory time dial plate. Position this plate over the timer and secure it. Then, firmly press the knob onto the timer shaft until it sits snugly.
- Restore Power: Once installation is complete and all components are securely in place, restore power at the circuit breaker.
Image 2: Internal view of the Intermatic FD12HC timer, illustrating wiring terminals.
Image 3: Various wiring diagrams for FD Series timers, including SPST and DPST configurations.
Installation Video Resources:
Intermatic In-Wall Timer
Video 1: A detailed guide from Intermatic on installing their in-wall timers, covering wiring and mounting procedures.
Product Overview Video
Video 2: An overview of the product, demonstrating its features and basic operation.
4. Operating Instructions
The Intermatic FD12HC timer offers simple, mechanical operation. To activate the timer, rotate the knob clockwise to your desired 'ON' duration, up to 12 hours. The timer will then automatically count down and turn off the connected load once the set time has elapsed. No electricity is required for the timer's operation.
Setting the Timer:
- Ensure the timer is installed correctly and power is restored.
- Rotate the central knob clockwise to the desired time setting (e.g., 2 hours, 4 hours, 12 hours). The timer will begin its countdown immediately.
- The connected appliance or light will remain on for the set duration and then automatically switch off.
Note: This model does not feature a 'Hold On' function, meaning the timer will always count down once set.
5. Maintenance
The Intermatic FD12HC timer is designed for durability and requires minimal maintenance.
General Care:
- Cleaning: Wipe the timer's surface and knob with a soft, damp cloth. Avoid using abrasive cleaners or solvents, as these may damage the finish.
- No User Serviceable Parts: Do not attempt to open or repair the timer. There are no user-serviceable parts inside.
6. Troubleshooting
If you encounter issues with your Intermatic FD12HC timer, consider the following:
- Timer Not Activating: Ensure the power is on at the circuit breaker. Verify that the knob is rotated past the 'OFF' position to a specific time setting.
- Load Not Turning Off: Confirm that the timer is correctly wired according to the installation instructions. Check for any loose connections.
- Timer Not Counting Down: As a mechanical timer, ensure the knob is not obstructed and can rotate freely.
- Persistent Issues: If problems persist after checking these points, it is recommended to consult a qualified electrician for further assistance.
7. Warranty and Support
Warranty Information:
The Intermatic FD12HC 12-Hour Spring-Loaded Wall Timer comes with a 1-year limited warranty. This warranty covers defects in materials and workmanship under normal use. In the event of a defect within the warranty period, the unit will be replaced.
Customer Support:
For technical assistance, warranty claims, or further information, please contact Intermatic customer support through their official website or the contact details provided in your product packaging.
