Intermatic ET8415CR Astronomic Electronic Time Switch Instruction Manual

1. Introduction

This manual provides comprehensive instructions for the installation, operation, and maintenance of the Intermatic ET8415CR Astronomic Electronic Time Switch. This device is designed to control electrical loads based on programmed schedules and astronomical events, offering precise and automated control for various applications.

The ET8415CR features auto-voltage operation, support for numerous fixed and astronomic events, independent dusk/dawn settings, and a supercapacitor for reliable performance without the need for batteries.

2. Safety Information

WARNING: Risk of Electrical Shock

• More than one disconnect switch may be required to de-energize the equipment before servicing. Always verify power is off before working on the device.
• Use 10-18 gauge copper conductors rated for at least 75°C (167°F) for all connections.
• Installation should be performed by a qualified electrician in accordance with all national and local electrical codes.
• Ensure proper grounding to prevent electrical hazards.

Failure to follow these safety instructions may result in electrical shock, fire, or serious injury.

3. Product Features

The Intermatic ET8415CR Astronomic Electronic Time Switch offers advanced functionality for precise control:

• Auto-Voltage Operation: Seamless compatibility with 120-277 VAC electrical systems.
• Extensive Event Programming: Capable of handling up to 56 fixed events and 8 astronomic events, which can be combined for flexible scheduling.
• Independent Dusk/Dawn Settings: Each circuit can be customized with its own dusk and dawn settings, adapting to specific requirements.
• Manual Override Options: Provides both temporary and permanent manual override functions for immediate control adjustments.
• Configurable Outputs & Supercapacitor: Outputs can be configured for various voltages and applications. A 100-hour supercapacitor eliminates the need for batteries, ensuring reliable performance during power interruptions.

Image 3.1: Front view of the Intermatic ET8415CR Astronomic Electronic Time Switch, showing the digital display and control buttons.

4. Setup and Installation

Installation of the ET8415CR should only be performed by a qualified electrician. Refer to the detailed wiring diagrams provided with the product packaging for specific connection instructions. The unit is designed for a 4-Circuit/30-Amp configuration within a Type 3R Steel Enclosure.

4.1 Wiring Considerations

• Ensure all power is disconnected at the circuit breaker before beginning installation.
• Use appropriate gauge copper wire (10-18 AWG) rated for 75°C (167°F) minimum.
• Connect line voltage (120-277 VAC) to the designated terminals.
• Connect load wires to the output terminals for each circuit.
• Properly ground the enclosure and the unit as per local electrical codes.

The enclosure provides protection against rain, sleet, and external ice formation, suitable for outdoor installations.

5. Operating Instructions

The ET8415CR features an intuitive control panel for programming and operation.

Image 5.1: Detailed view of the ET8415CR control panel, highlighting the display and programming buttons.

5.1 Initial Setup

1. Set Current Time and Date: Press the 'MODE' button to navigate to the time/date setting. Use the '+' and '-' buttons to adjust values and 'ENTER/NEXT' to confirm.
2. Set Location: Input your geographical coordinates (latitude/longitude) or select a pre-programmed city for accurate astronomic event calculations. This is crucial for dusk/dawn functionality.

5.2 Programming Events

The timer supports two types of events: fixed and astronomic.

• Fixed Events: Program specific ON/OFF times for each day of the week. Use the 'DAY' button to select the day and 'ON/OFF' buttons to set the desired times.
• Astronomic Events: Utilize the built-in astronomic clock to automatically adjust ON/OFF times based on local sunrise and sunset. These events can be offset by a specified number of minutes before or after dusk/dawn.

Refer to the full programming guide in the product's included documentation for detailed steps on setting up complex schedules and combining event types.

5.3 Manual Override

• Temporary Override: Pressing an 'ON/OFF' button for a specific circuit will temporarily switch its state until the next programmed event.
• Permanent Override: Consult the detailed manual for instructions on engaging a permanent override, which will keep a circuit ON or OFF indefinitely until manually reset.

6. Maintenance

The Intermatic ET8415CR is designed for minimal maintenance.

• Supercapacitor: The unit incorporates a 100-hour supercapacitor, which provides backup power for the clock and programmed settings during power outages. This eliminates the need for periodic battery replacement.
• Cleaning: Periodically wipe the exterior of the enclosure with a clean, damp cloth. Do not use abrasive cleaners or solvents.
• Inspection: Regularly inspect the enclosure for any signs of damage or wear, especially if installed outdoors. Ensure all connections remain secure.

7. Troubleshooting

If you encounter issues with your ET8415CR, consider the following common troubleshooting steps:

• No Display/Power: Check the circuit breaker supplying power to the unit. Ensure all wiring connections are secure and correct.
• Incorrect Switching Times: Verify that the current time, date, and location settings are accurate. For astronomic events, confirm the correct geographical data has been entered.
• Programs Not Running: Ensure the unit is not in a permanent manual override mode. Check that events are correctly programmed and enabled.
• Loss of Settings After Power Outage: While the supercapacitor provides backup, extended power outages beyond 100 hours may result in loss of time and date settings. Reprogram if necessary.

For persistent issues, consult a qualified electrician or contact Intermatic customer support.

8. Specifications

Image 8.1: Internal view of the ET8415CR, showing wiring terminals and components.

Image 8.2: CSA (Canadian Standards Association) certification logo, indicating product compliance with safety standards.

9. Warranty and Support

For warranty information, please refer to the manufacturer's description included with your product packaging or visit the official Intermatic website.

For additional support, product resources, or to contact customer service, please visit the Intermatic Brand Store.