INTERMATIC ET2845C Electronic Timer Installation Guide

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LOGO.png)INTERMATIC ET2845C Electronic Timer Installation

MODELS ET2845C, ET2845CR, ET2845CP

Installation and Setup Instructions

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.
• 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.

NOTICE

• Do NOT touch circuit board components, contact can create a static discharge, which can damage these electronic components.

Description

This document explains the setup and configuration of the Intermatic ET2845 4-Circuit Electronic Astronomic 365/7-Day Time Switch. The ET2845 time switch automatically switches loads according to the weekly schedule that is entered. The time switch can support up to 48 fixed ON and 48 fixed OFF events (96 total) and up to 8 Astro events. Each fixed event can be applied to any combination of circuits and days. 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 configuring DST switchover dates. Follow these instructions to complete the installation and programming of the ET2845 time switch.

Federal Communications Commission (FCC) Notice for ET2000 Series Time Switches

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 ac-cordance 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.

Installation

Follow these instructions to install the time switch.

1. Open the time switch enclosure door.

2. Remove and retain the screw that secures the plastic insulator.

3. Lift the left side of the plastic insulator and pivot away to expose the terminal strip.

4. Press the latch at the top of the enclosure and pull out the mechanism from the enclosure.

5. Choose and remove the selected knockout(s) from the enclosure.
   NOTE: There are five 1/2 inch to 3/4 inch combination knockouts available. There are two on the bottom of the enclosure, one on each side, and one on the rear. If a 3/4 inch knockout is needed, remove the 1/2 inch knockout first, then the 3/4 knockout.

6. Place the enclosure in the desired location providing space for the enclosure door to swing open fully.

7. Securely mount enclosure using provided mounting holes.

8. Use appropriately rated fittings for the installation.

9. Snap the mechanism back into the enclosure.

10. Strip 1/2 inch off the supply and load wires. Use AWG #14 – #8 copper conductors rated at least 105ºC. Torque to 15.6 lbf-in.

11. Connect the wires to the proper terminals on the time switch and tighten the screws firmly (See wiring diagrams).

12. Connect ground wire to grounding terminal at the bottom of metal enclosures.

13. Return the insulator to its original position and replace the screw.

14. Close enclosure door.

15. Apply power to the time switch.

Wiring Diagrams

Initial Setup
The following sections provide instructions for the initial setup of the time switch.

Setting The Output Configuration
The time switch output configuration enables users to control multiple loads simultaneously (SIM), independently (IND), or with a 2-second pulse (PUL). Output circuits are configured in pairs; circuits #1 and #2 first, followed by circuits #3 and #4. In PUL mode, an ON event or manual override, causes circuit #1 to turn ON for two seconds, then OFF. An OFF event, or manual override, causes circuit #2 to turn ON for two seconds, then OFF.
NOTE: The output configuration setup can only be accessed at initial startup of the unit or after a “Clearing Time Switch Memory” operation. Follow this procedure to set the output configuration.

1. Activate power to the time switch. The display shows IND, the ARROW icon above the ENTER/NEXT button and the LOAD icons for circuit #1 and circuit #2 turn on.
   NOTE: If the display does not show IND the output configuration is already set and a “Clearing Time Switch Memory” operation must be performed.

2. Press + or – to scroll to the desired output configuration.

3. Press ENTER/NEXT to save the setting for the first two circuits.

4. The display now shows IND, the ARROW icon above the ENTER/NEXT button and the LOAD icons for circuit #3 and circuit #4 turn on.

5. Press + or – to scroll to the desired output configuration.

6. Press ENTER/NEXT to save the setting for the last two circuits.

7. The output configuration is now completed.

Programming Overview

The steps to program the time switch include setting the current date, time, Astro zone, Astro events, fixed events, DST, and Holiday events, setting the time switch’s operation to AUTO mode, ENERGY SAVER mode or MANUAL mode (only MANUAL mode will appear if there are no scheduled events) and read or write an event schedule from a USB memory stick.
NOTE : If the time switch is left inactive for five minutes in a programming mode, it will return to the AUTO mode screen (AUTO icon turned on). If no scheduled events are programmed, the time switch will return to MANUAL mode. If the date has not yet been entered, the time switch will go to the Enter Date Mode.

Setting Date
Follow this procedure below to set the date and time in the time switch.
NOTE : If necessary, hold + or – to scroll through the digits rapidly.

1. Press MODE to scroll through the mode selections until SET and DATE icons appear at the top of the display. The month flashes.
2. Press + or – to select the current month and then press ENTER/NEXT. The day of the month flashes.
3. Press + or – to select the current day of the month, and then press ENTER/NEXT. The year flashes.
4. Press + or – to enter the current year, and press ENTER/NEXT. The month will flash again.
5. Press MODE to move to the next mode selection.

Setting Time
Follow the procedure below to set the time in the time switch.
NOTE: If necessary, hold + or – to scroll through the digits rapidly.

1. Press MODE to advance to the Set Clock mode selection if this selection is not already active. The SET and TIME icons appear on the display and a flashing 12:00 AM appears (if clock has not been set).

2. Press + or – to select the current time (be aware of the AM/PM setting)
   NOTE: Seconds can be set to 00 by pressing ENTER/NEXT.

3. Press MODE to save the time and move to the Enable Daylight Saving Time mode selection.
   NOTE: If the time switch programming data is to be read from a USB memory stick, refer to the “Read Time Switch Program Data…” section in these instructions.

Enable/Disable Daylight Saving Time and Setting Daylight Saving Time Rule
Configure the time switch to automatically adjust for Daylight Saving Time (DST). If DST does not apply to your region, disable the option as directed in this procedure. Follow this procedure to enable/disable the Daylight Saving Time feature, and if applicable, set the DST rule.

1. Press MODE to advance to the Set DST mode selection if this selection is not already active. The SET and DST icons appear on the display.

2. Press + to display ON (enable DST) or press – to display OFF (disable DST) and then press ENTER/NEXT to save.

3. Press + or – to scroll to the desired DST rules for your area.
   NOTE: The DST rules are US2007 (US rules), MX1986 (Mexico rules), and CUSTOM (user-defined start/end dates)

4. Press + or – to select a starting month for customized DST and press ENTER/NEXT

5. Press + or – to select a starting week (1ST, 2ND, 3RD, 4TH, or LST) and press ENTER/NEXT.
   NOTE: DST changes at 2:00 A.M. on Sunday of the user-configured starting and ending weeks. Select LST for the fifth Sunday of a month.

6. Press + or – to select an ending month and press ENTER/NEXT.

7. Press + or – to select an ending week and press ENTER/NEXT.

for a DST rule, press ENTER/ NEXT to scroll through the dates and then press MODE.
Custom| Press ENTER/NEXT. The screen displays a flashing MAR and 2ND. Go to step 4.

Setting Astro Zone and Time Zone
The astronomic feature of this time switch provides a sunset ON event and a sunup OFF event for each circuit (see “Setting Astronomical ON/OFF Events”). These ON and OFF events automatically adjust to the actual change in sunset and sunup times in the geographical location (astro zone) that is set in the following procedure.
Follow this procedure to set the Astro Zone for the time switch.Press MODE to save the DST rules and move to the next mode selection.

1. The ASTRO ZONE icon appears at the top of the display. The display shows AL C and a flashing US.
   (If this mode selection is not already active, press MODE to advance to the Set ASTRO ZONE mode selection.)
   NOTE: If a custom location of the time switch had been previously set by adjusting either the latitude or longitude setting, the display will show the current latitude setting. Simultaneously press + and – to delete the custom time switch location and return to the previously set geographical location setting (state and section of state).

2. Press + or – to select the country (USA, Canada, or Mexico) and press ENTER/NEXT.

3. Press + or – to select the applicable geographical section within the selected state or province and press ENTER/NEXT (possible geographical locations are listed in the following table). Not all sections will be available for every state.
   Example: If time switch is located in Chicago then the geographical location within the state of Illinois would be NE.
   NOTE: In most cases, the section choice provides an accurate location for your time switch. If a location requires greater accuracy adjust the latitude and longitude in the time switch. If this is a requirement, follow the applicable steps to set a custom latitude and longitude.

4. The LAT (latitude) entry screen appears showing the value of the selected geographical location.

5. The LN (longitude) entry screen appears showing the value of the selected geographical location.

6. The TZCENT screen appears. Press + or – to scroll to the desired time zone and press MODE to save the settings.
   (See table for a description of the available time zones)

Setting Sunup and Sunset Offset Times from Astronomic Sunup and Sunset Times
Normally, the time switch’s sunup and sunset times match the actual occurrence of sunup and sunset (astronomic sunup and sunset times). In some cases it is desirable to change the time switch’s sunrise and sunset times so circuits turn on or off either before or after an actual sunup or sunset. For example, a user can set the lights in a parking lot to turn on 30 minutes before the normal sunset time by changing the time switch’s sunset time to 30 minutes (a 30 minute offset) before the normal sunset time.
Follow this procedure to adjust sunup and sunset times or press MODE to skip this procedure.

1. Press MODE to advance to the Offset mode selection if this selection is not already active. The SET and SUNUP icons appear at the top of the display. The default sunup time for circuit #1 is displayed as indicated by the LOAD icon above the circuit #1 button.

2. Press + or – to adjust the time for sunup and press ENTER/NEXT. OFFSET briefly appears on the display, and then the offset time (in minutes) is displayed.
   NOTE: Offsets can be set to a maximum of 2 hours (120 minutes) before or after a sunup or sunset time. A minus sign (-) appears before the digit to indicate minutes before a sunup or sunset time.

3. If needed, press + or – to adjust the offset time value and press ENTER/NEXT to save the value.

4. The updated sunup time is displayed.

5. If desired, press the ON/OFF button to adjust the offset time for the next circuit to program. The LOAD icon for the selected circuit will be displayed.

6. Repeat steps 2 through 5 as needed for each circuit.

7. When all the circuits are set, press MODE to save settings. The time switch displays SET and SUNSET icons at the top of the display. The default sunset time for circuit #1 is displayed as indicated by the LOAD icon above the circuit #1 button.

8. Repeat steps 2 through 5 as necessary to adjust sunset times.

9. When all the sunset times are configured, press MODE to save.

Programming Events
Users can configure Astro events, fixed timed events, or a combination of Astro and fixed timed events. Perform the applicable instructions below.

• To set Astro events (sunset and sunup) only, perform the procedure; Setting Astronomic On/Off Events
• To set fixed timed events only, perform the procedure; Setting Fixed Timed Events
• To set a combination of Astro and fixed events, perform both procedures; Setting Astronomic Events and Setting Fixed Events

Setting Astronomic On/Off Events

1. Press MODE to advance until SET ASTRO ON/OFF EVENTS SUNSET icons appear on the display (if this selection is not already active). The display also shows the ON@ icon and the LOAD icon above the circuit #1 button.
2. If an event is not set the time display will show – – – -.
3. Press DAY. The screen displays SUNSET and the days of the week.Access the Astro Events screen to configure Astronomic ON/OFF events for each individual circuit. For each circuit one Astronomic ON event (at sunset) and/or one Astronomic OFF event (at sunup) can be enabled for selected days of the week. Follow this procedure to set Astro ON/ OFF Events (if no astronomic events need to be set press MODE to move to the next mode selection).
4. Press – to eliminate this event or press + to keep this event for the selected day.
5. Press DAY to move to the next day of the week repeat step 4.
6. When all the days are set, press ENTER/NEXT to save.
7. The display changes to SET ASTRO ON/OFF EVENTS SUNUP, the OFF@ icon.
8. If an event is not set the display will show – – – – .
9. Press DAY. The screen displays SUNUP and the days of the week.
10. Press – to eliminate this event or press + to keep this event for the selected day.
11. Press DAY to move to the next day of the week repeat step 10.
12. When all the days are set, press ENTER/NEXT to save.
13. The display shows the SET ASTRO ON/OFF EVENTS SUNSET icons. The display also shows the ON@ icon and the LOAD icon above the next circuit button.

SET EACH DAY INDIVIDUALLY

On the display, the day of the week being set is flashing.

| Press DAY three times and the MON icon should flash. Go to step 4.
If the desired days for this event are| Then
---|---
MON-SUN| Press ENTER/NEXT to save. Go to step 13.
MON-FRI| Press DAY once and then press ENTER/NEXT to save. Go to step 13.
SAT-SUN| Press DAY twice and then press ENTER/NEXT to save. Go to step 13.
SET EACH DAY INDIVIDUALLY

On the display, the day of the week being set is flashing.

| Press DAY three times and the MON icon will flash. Go to step 10.
If| Then
---|---
You want to configure an Astro event for another circuit| Return to step 2.
All the required Astro events are set| Press MODE to save and exit. The procedure is complete.

Setting Fixed Timed Events
Access the Fixed ON/OFF screen to set fixed switching times. Odd-numbered events are for ON switching and even-numbered events are for OFF switching. These events can be enabled for selected days of the week. Follow these steps to set fixed time events (if no fixed events need to be set press MODE to move to the next mode selection):

1. Press MODE to advance until SET FIXED ON/OFF EVENTS and ON@ icons appear on the display (if this selection is not already active. The Event Number and LOAD icon for each circuit are also displayed. Press ENTER/NEXT if this fixed on event is not needed, go to step 9.
2. If an event is not set the time display will show – – – -.
3. Press DAY. The screen displays 12:00 am and the days of the week.
4. Press + or – to set the time for the fixed event to occur.
5. Initially all circuits are included with this event. Press ON/OFF buttons to remove each circuit not affected by this event. If the LOAD icon for the circuit is displayed then this circuit will respond to this event.
6. Press – to eliminate this event or press + to keep this event for the selected day.
7. Press DAY to move to the next day of the week repeat step 6.
8. When all the days are set, press ENTER/NEXT to save.
9. The Event Number increments and the SET FIXED ON/OFF EVENTS and OFF@ icons are displayed. Press ENTER/NEXT if this fixed off event is not needed, go to step 17.
10. If an event is not set the time display will show – – – -.
11. Press DAY. The screen displays 12:00 am and the days of the week.
12. Press + or – to set the time for the fixed event to occur.
13. Initially all circuits are included with this event. Press ON/OFF buttons to remove each circuit not affected by this event. If the LOAD icon for the circuit is displayed then this circuit will respond to this event.
14. Press – to eliminate this event or press + to keep this event for the selected day.
15. Press DAY to move to the next day of the week repeat step 14.
16. When all the days are set, press ENTER/NEXT to save.
17. The Event Number increments and the SET FIXED ON/OFF EVENTS and ON@ icons are displayed. Press ENTER/NEXT if this fixed off event is not needed.

SET EACH DAY INDIVIDUALLY

On the display, the day of the week being set is flashing.

| Press DAY three times and the MON icon will flash. Go to step 6.
If the desired days for this event are| Then
---|---
MON-SUN| Press ENTER/NEXT to save. Go to step 17.
MON-FRI| Press DAY once and then press ENTER/NEXT to save. Go to step 17.
SAT-SUN| Press DAY twice and then press ENTER/NEXT to save. Go to step 17.
SET EACH DAY INDIVIDUALLY

On the display, the day of the week being set is flashing.

| Press DAY three times and the MON icon should flash. Go to step 14.
If| Then
---|---
Another fixed event needs to be set| Return to step 2.
All the events are set| Press MODE to save and exit. The procedure is complete.

Setting Holidays

There are 50 Holiday blocks that can be programmed along with a single schedule for each block. For each block there will be a start date and an end date. Within each block one scheduled “on” event and one “off” event can be programmed. Holidays are recognized by an H on the display. During the dates chosen, the relays will remain in the “OFF” state and HOLIdy will show on the display. NOTE: During holiday blocks only programmed holiday events will trigger relay operations.
To program holiday blocks follow these guidelines:

1. Press MODE to advance until the SET, DATE and ON@ icons appear on the display if this selection is not already active. A Holiday Number is also displayed on the right side of the display.
2. The time display will flash – – – – and also show 1H.
3. Press the + or – buttons to choose the Month that the Holiday will start.
4. Press ENTER/NEXT and the day of the month, the 1, will flash.
5. Press the + or – buttons to choose the day that the Holiday will start.
6. Press ENTER/NEXT and the OFF@ icon is displayed.
7. The time display will flash – – – – and also show 1H.
8. Press the + or – buttons to choose the month that the Holiday will end.
9. Press the ENTER/NEXT and the day of the month, the 1, will flash.
10. Press the + or – buttons to choose the day that the Holiday will end.
11. Press ENTER/NEXT and the SET ON@ ON/OFF EVENTS icons are displayed. (press ENTER/NEXT twice to skip setting an event during the holiday period in which case all circuits will remain off.)
12. The time display shows – – – – and event number 1 is also displayed on the right side of the display.
13. Press the + or – buttons to set the time for this holiday event to start.
14. Press ON/OFF buttons to remove each circuit not affected by this event. All circuits are initially included with the event. If the LOAD icon for the circuit is displayed then this circuit will respond to this event.
15. Press ENTER/NEXT and the OFF@ icon is displayed.
16. The time display shows – – – – and event number 2 is also displayed on the right side of the display
17. Press the + or – buttons to set the time for this holiday event to end.
18. Press ON/OFF buttons to remove each circuit not affected by this event. All circuits are initially included with the event. If the LOAD icon for the circuit is displayed then this circuit will respond to this event.
19. Press ENTER/NEXT and the SET DATE ON@ icons appear on the display. The next Holiday Number is displayed on the right side of the display.

Example: July 4th would have a start date of Jul 4 and an end date of Jul 5. If no holiday events are set, at 12:00 AM on July 4th the circuits will be turned to the OFF state. At 12:00 AM on July 5th all circuits will resume normal scheduled operation. If holiday events are set to turn on circuits 1 and 2 from 2:00 AM – 6:00 AM then circuits 1 and 2 will turn on between 2:00 AM and 6:00 AM while circuits 3 and 4 remain off.

Setting Operating Mode – Final Step
The time switch can be set to one of three operating modes; AUTO (default setting), ENERGY SAVER or MANUAL. Once operating mode is selected the time switch setup is complete.
NOTE: If no scheduled events are programmed, only MANUAL mode is available. In AUTO mode, the time switch follows the user-programmed events and the circuits turn ON and OFF at the programmed time(s).

• To place in AUTO mode, press MODE and advance until the AUTO icon appears on the display.

• In AUTO mode, pressing an ON/OFF button temporarily overrides the current state of the circuit. The time switch returns to the normal schedule at the next programmed event.
  In ENERGY SAVER mode the time switch operates similarly to AUTO mode with the following exceptions:

• The ON/OFF buttons manually activate circuits for only a 2-hour period.

• When a 2-hour period is active, pressing ON/OFF extends the active period by 2-hours.

• Pressing and holding (for 3 seconds) an ON/OFF button will turn OFF the associated circuit.
  For ENERGY SAVER mode, press the MODE button until the AUTO icon on the display flashes.
  In MANUAL mode the time switch does not follow any programmed events and only activates circuits when an ON/OFF button is pressed.

• For MANUAL mode, press the MODE button until the MANUAL icon appears on the display.

LIMITED WARRANTY
Warranty service is available by either (a) returning the product to the dealer from whom the unit was purchased or (b) completing a warranty claim online at www.intermatic.com. This warranty is made by: Intermatic Incorporated, 1950 Innovation Way, Suite 300, Libertyville, IL 60048. For additional product or warranty information go to: http://www.Intermatic.com or call 815-675-7000.

References

• intermatic.com

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