Intermatic ET2145CP Electronic Timer Instruction Manual

1. Introduction

This manual provides comprehensive instructions for the installation, operation, and maintenance of your Intermatic ET2145CP Electronic Timer. This device is designed for 24-hour and 365-day operation, capable of handling up to 30 Amps at 120 to 277Vac. Please read this manual thoroughly before installation and use to ensure safe and proper functionality.

2. Important Safety Information

WARNING: Risk of Fire or Electric Shock

• Disconnect power at the circuit breaker(s) or disconnect switch(es) before installing or servicing.
• More than one circuit breaker or disconnect switch may be required to de-energize the equipment before servicing.
• Installation and/or wiring must be in accordance with national and local electrical code requirements.
• Use COPPER conductors ONLY.
• Do NOT remove the insulator covering the terminals.

3. Product Overview

The Intermatic ET2145CP Electronic Timer features a clear digital display and intuitive controls for programming. Key components include:

• Digital Display: Shows current time, date, and programming information.
• MODE Button: Used to cycle through different programming modes (e.g., time setting, event programming).
• ENTER/NEXT Button: Confirms selections and advances to the next setting.
• ON/OFF Buttons: Used for manual override or to set ON/OFF times for programmed events.
• CLEAR MEM Button: Clears all programmed events or settings.
• CLEAR ENTRY Button: Clears the current entry during programming.
• Up/Down Arrows: Adjust values (time, date, event numbers).
• Terminal Block: For electrical wiring connections.

4. Installation Instructions

Follow these steps for proper installation of the Intermatic ET2145CP Electronic Timer:

1. Power Disconnection: Before beginning any work, ensure all power to the circuit is disconnected at the main circuit breaker or disconnect switch. Verify with a voltage tester.
2. Access Wiring Terminals: To access the wiring terminals, lift the plastic insulator covering the terminals. You may need to remove a screw and swing the insulator aside.
3. Wiring Connections: Connect the electrical wiring to the appropriate terminals. Ensure all connections are secure and comply with local and national electrical codes. Use only copper conductors.
4. Secure Insulator: Once wiring is complete, replace the plastic insulator covering the terminals and secure it with the screw (if applicable).
5. Restore Power: After ensuring all connections are correct and secure, restore power to the circuit.

5. Operating Instructions

5.1. Initial Setup: Setting Time and Date

1. Press the MODE button until the time/date setting option appears on the display.
2. Use the Up/Down Arrows to adjust the current hour. Press ENTER/NEXT to confirm.
3. Repeat for minutes, AM/PM (if applicable), year, month, and day.
4. Press MODE to exit the setting menu.

5.2. Programming ON/OFF Events

The timer supports multiple ON/OFF events. Refer to the display for available program slots.

1. Press the MODE button until 'PROGRAM' or 'EVENT' mode is displayed.
2. Use the Up/Down Arrows to select an event number (e.g., 1 ON, 1 OFF). Press ENTER/NEXT.
3. Set the desired ON time using the Up/Down Arrows and ENTER/NEXT.
4. Set the desired OFF time using the Up/Down Arrows and ENTER/NEXT.
5. Select the days of the week for this event to be active (e.g., Mon-Fri, Daily, Weekends). Press ENTER/NEXT.
6. Repeat for additional events as needed.
7. Press MODE to exit programming.

5.3. Manual Override

To temporarily override the programmed schedule:

• Press one of the ON/OFF buttons to manually switch the output ON or OFF.
• The timer will typically revert to its programmed schedule at the next scheduled event.

5.4. Clearing Memory

To clear all programmed events or reset the timer:

• Press and hold the CLEAR MEM button for a few seconds until the display confirms memory clear.
• Alternatively, use the CLEAR ENTRY button to clear individual entries during programming.

6. Maintenance

The Intermatic ET2145CP Electronic Timer requires minimal maintenance. Ensure the unit is kept clean and free from dust and debris. Do not attempt to open the casing or repair the internal components, as there are no user-serviceable parts inside. For cleaning, use a soft, dry cloth. Avoid abrasive cleaners or solvents.

7. Troubleshooting

If you encounter issues with your timer, consider the following common troubleshooting steps:

• No Display/No Power: Check the circuit breaker or fuse supplying power to the timer. Ensure all wiring connections are secure.
• Timer Not Switching: Verify that the programmed events are correctly set and enabled. Check if the manual override is active.
• Incorrect Time/Date: Re-enter the correct time and date as per Section 5.1.
• Erratic Behavior: A power surge or interruption might cause erratic behavior. Try resetting the timer by pressing the CLEAR MEM button (this will erase all programs, requiring re-programming).

If problems persist after attempting these steps, contact Intermatic customer support for assistance.

8. Technical Specifications

9. Warranty and Customer Support

For information regarding the product warranty, please refer to the warranty card included with your purchase or visit the official Intermatic website. For technical assistance, troubleshooting, or to inquire about replacement parts, please contact Intermatic customer support directly. Contact details can typically be found on the manufacturer's website or product packaging.