Intermatic ET2105C User Manual

Electronic 1-Circuit
24-Hour Time Switch
Installation and Setup Instructions
With 100-Hour Backup
Federal Communications Commission (FCC) Notice for ET2000 Series Time Switches
Description
This document explains the setup and conguration of the Intermatic ET2105 1-Circuit
Electronic 24-Hour Time Switch. The ET2105 time switch automatically switches loads
according to the entered daily schedule. The time switch can support up to 48 xed ON
and 48 xed OFF events (96 total).
The time switch features an LCD and panel-mounted control buttons to set, review, and
monitor the time switch functions, including setting date and time, schedule creation,
enabling or disabling Daylight Saving Time (DST) and conguring DST switchover dates.
Follow these instructions to complete the installation and programming of the ET2105 time
switch.
This device complies with part 15 of the FCC rules. Operation of this device is subject to the following two conditions: (1) This device
may not cause harmful interference, and (2) This device must accept any interference, including interference that may cause
undesired operation. This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates, uses and radiates radio frequency energy and, if
not installed and used in accordance with instructions, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference that requires the user to correct at his or her own expense.
MODELS ET2105C, ET2105CR, ET2105CP
Shown in indoor/outdoor
lockable metal enclosure
NOTICE
• Do NOT touch circuit board components, contact can create a static discharge, which can damage these electronic components.
• 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.
• For plastic enclosures, bonding between conduit connections is not automatic and must be provided as part of the installation.
• Installation and/or wiring must be in accordance with National and Local Electrical Code requirements.
• Use #14-#8 AWG wires, rated at least 105°C - COPPER conductors ONLY.
• If the power disconnect point is out of sight, lock it in the OFF position and tag it to prevent unexpected application power.
• Make sure there is no wire insulation under the terminal plate on the time switch connector. Firmly tighten terminal screws.
• For outdoor locations or wet locations (rain-tight), conduit hubs that comply with requirements of the UL514B (standard for fitting conduit and
outlet boxes) are to be used.
• Do not remove insulator that is covering terminals.
• Do NOT exceed maximum current carrying capacity.
• KEEP DOOR CLOSED AT ALL TIMES when not servicing.
Risk of Fire or Electric Shock
WARNING

Intermatic ET2105C Specifications

General

Brand	Intermatic
Category	Switch
Voltage	120 V
Amperage	15 A
Mounting	Wall
Battery Backup	Yes
Shortest ON/OFF time	1 minute
Programmable	Yes
Display	LCD
Material	Plastic
Color	White
Type	Digital Timer
Operating Temperature	32 to 104 °F
Mounting Type	Surface

Summary

Product Overview and Safety

Safety Warnings

Critical safety precautions for installation and servicing to prevent fire or electric shock hazards.

Product Description

Explains the setup and configuration of the Intermatic ET2105 1-Circuit Electronic 24-Hour Time Switch.

FCC Compliance Notice

Details compliance with FCC rules for radio frequency energy and potential interference.

Installation Procedure

Mounting and Wiring

Detailed steps for mounting the enclosure, wiring connections, and applying power to the time switch.

Wiring Diagram

Visual representation of how to connect power and load to the time switch terminals.

Initial Setup and Configuration

Setting Date and Time

Procedure to set the current date (month, day, year) and time (hour, minute) on the time switch.

Daylight Saving Time (DST) Setup

Steps to enable/disable DST and configure the specific DST rules for the region.

Programming Time Switch Events

Fixed ON/OFF Events

Instructions for programming fixed ON and OFF events for the time switch, up to 48 of each.

Holiday Event Programming

Guide to programming holiday blocks with start and end dates to control relay operations.

Operating Modes and Data Management

Selecting Operating Modes

How to select between AUTO, ENERGY SAVER, or MANUAL operating modes for the time switch.

Event and Memory Clearing

Procedures to delete individual events or clear all programmed settings to factory defaults.

USB Program Data Transfer

Steps to transfer programmed data from the time switch to a USB memory stick for backup or transfer.

USB Data Operations

Reading Program Data from USB

Guide to transferring programmed data from a USB memory stick back into the time switch.

USB Error Code Reference

Lists and explains common error codes encountered during USB read/write operations.

Product Specifications

Electrical Ratings and Configuration

Details electrical inputs, power usage, switch type, and load capacity ratings.

Physical and Operational Specs

Provides details on supported events, backup power, wire gauge, timing limits, weight, enclosure types, and knockouts.

Warranty and Support Information

Limited Warranty Terms and Exclusions

Outlines the terms and conditions of the limited warranty, exclusions, and limitations.

Warranty Service and Contact Details

Provides instructions on how to obtain warranty service, including website and phone number.