Somfy Telis 1 Chronis RTS Timer Remote Setup and Pairing Guide

Short answer: The Somfy Telis 1 Chronis RTS (1805237) is a single-channel RTS handheld remote with a built-in timer. It runs one open and one close order per day, with separate work-day and rest-day schedules, and it pairs with any Somfy RTS motor or receiver through the PROG button of a remote already paired to that motor. It needs no hub.

A shade that opens at 7:30 each morning and closes at sunset needs a clock somewhere in the system. The Somfy Telis 1 Chronis RTS Timer (Pure) (1805237) puts that clock inside the remote. Somfy builds it for awnings and for interior blinds, draperies and shades, and it talks to the motor over the same 433.420 MHz RTS radio as a standard Telis or Situo. Buyers searching for "telis 1 chronis rts" want to know whether it runs their motor and how to set the times. Both answers below come from Somfy's instructions.

A single-channel RTS remote with a clock inside

Somfy describes the Telis 1 Chronis as a single channel hand-held control combined with a programmable timer. In manual mode it behaves like any one-channel RTS remote: up, stop and down, plus the my button for a favorite position. Switch it to automatic mode and it sends the stored up and down orders on its own at the times you set.

The timer handles one open and one close per day. You can split the week into work days and rest days, so the shades can stay down an hour longer on Saturday and Sunday. Somfy ships it with default times of 7:30 am for up and 8:00 pm for down. A simulated presence mode shifts each automatic order by a random 0 to 30 minutes, which makes an empty house look lived in.

One channel means one address. Pair it to one shade, or to each motor in a room that should move on the same schedule.

Telis 1 Chronis RTS specs from Somfy

These figures come from Somfy's pages for ref 1805237 and the Telis 1 Chronis RTS instructions.

Walls and metal shorten the open-field range indoors, and Somfy's instructions warn against mounting the remote on or near metal surfaces. An optional wall clip keeps it by the window.

Motors and receivers the Chronis drives

Somfy lists the Telis 1 Chronis as compatible with all motorized Radio Technology Somfy applications. In practice that means any motor with a built-in RTS receiver, and any wired motor that sits behind an RTS receiver.

• Interior roller shades on low-voltage power, such as the Somfy Sonesse 30 RTS 24V DC Motor (1241142), a 2 Nm motor for 1.13 in (28.7 mm) inside-diameter tubes.
• Larger line-voltage roller shades on the Somfy LS40 409R2 Sonesse RTS 120V Motor (1240382), where a morning open and evening close protects furnishings from UV.
• Retractable awnings and rolling shutters on the Somfy 525A2 Altus RTS 120V Motor (1043423), since Somfy lists awnings as a Chronis application.
• Wired 120V motors without a receiver, through the Somfy Universal RTS Receiver (1810627). The receiver gives the motor an RTS address, and the Chronis pairs to the receiver.

The Chronis speaks RTS only. A Zigbee motor needs a Ysia remote or a TaHoma hub for schedules, and a wired motor with no receiver cannot hear any radio remote. Check the motor's part number against the spec library at Shade Motors Direct spec sheets before you order.

Pair the Telis 1 Chronis to a programmed motor

Somfy's instructions add the Chronis to a motor that already answers another RTS remote. The existing remote opens the motor's programming window, and the Chronis joins it. A motor holds up to 12 RTS transmitters, so the original remote keeps working.

1. Put the Telis 1 Chronis in manual mode. Briefly press the selection button until OFF shows on the screen.
2. On the remote already paired to the motor, press and hold PROG until the shade jogs up and down. The motor stays in programming mode for 2 minutes.
3. Briefly press PROG on the back of the Telis 1 Chronis RTS.
4. The shade jogs again. The Chronis is now paired.

Repeat the same sequence to remove the Chronis from that motor. For a brand-new motor with no limits set, Somfy recommends pairing and setting limits with an individual Telis 1 RTS or other RTS remote first, then adding the Chronis. Limit procedures differ by motor family, so follow the install guide for your motor in the spec library. Our guide to pairing, adding and deleting a Somfy RTS remote covers the PROG basics.

Set the clock, work days and timer orders

The general settings menu opens on first battery insertion. You can open it later by holding the selection button for more than 7 seconds in automatic mode.

1. The year flashes. Use the arrow buttons to change it, then briefly press the selection button to save and move on.
2. Set the month, the day, the hour and the minutes the same way.
3. Set AREA to US, EU or OFF. US applies daylight saving changes on the US calendar. OFF means you change the clock by hand.
4. At the WORK step, use the arrows to highlight your work days and briefly press the selection button. Days you leave unselected become rest days.
5. Hold the selection button until the remote returns to automatic mode.

Somfy gives two ways to store an up or down time. The quick method saves the current time: in automatic mode, pick the day group with the arrows, then hold the up or down button for more than 10 seconds until SET appears and the order flashes 3 times. The edit method sets any time you like:

1. In automatic mode, select the order with the arrows.
2. Hold the selection button until SET appears and EDIT flashes, then briefly press it.
3. Change the hour with the arrows and confirm with the selection button.
4. Change the minutes and confirm. The remote returns to automatic mode.

To delete an order, follow the edit steps and switch the display to DELET with an arrow before you confirm.

Daily use: manual mode, random mode and batteries

A brief press on the selection button toggles between automatic and manual. Manual mode shows OFF and pauses the stored orders without deleting them. Press it again to bring the schedule back.

Pressing both arrow buttons together in automatic mode turns simulated presence on or off. Switching to manual mode cancels it, so turn it back on after you return to automatic. The my button sends the shade to its programmed favorite position while it is stopped.

The remote runs on 2 AAA (LR3) cells. Somfy specifies non-rechargeable batteries. Replace both cells when the low-battery symbol appears. After a long power loss the clock settings need resetting, while the stored automatic orders stay in memory.

For a schedule plus sun and wind reactions, or app control from a phone, compare the options in our guide to Somfy automatic blinds with a timer, sun sensor or TaHoma. If the room needs one remote for several separate shades, the Somfy remote chooser lays out the multi-channel models. The full handheld range sits in our Somfy RTS remotes collection, and the Telis 1 Chronis RTS (1805237) page carries Somfy's flyer and instructions.

Sources: Somfy Telis 1 Chronis RTS Instructions (April 2014), somfypro.com e-cat 1805237, somfysystems.com product page 1805237.

Frequently asked questions

Does the Somfy Telis 1 Chronis RTS need a hub?

No. The timer lives inside the remote, so the Telis 1 Chronis sends its daily up and down orders straight to the motor over RTS radio at 433.420 MHz. It pairs like any RTS transmitter, through the PROG button of a remote already paired to the motor. Add a TaHoma hub for app control or voice assistants.

How many timer events does the Telis 1 Chronis support?

Somfy publishes one open and one close order per day. You can give work days and rest days their own times, so weekday and weekend schedules differ. Factory defaults are 7:30 am up and 8:00 pm down. A simulated presence mode adds a random shift of 0 to 30 minutes to each automatic order.

Which batteries does the Telis 1 Chronis RTS use?

It takes 2 LR3 (AAA) batteries. Somfy's instructions call for non-rechargeable cells. Replace both batteries together once the low-battery symbol shows on the screen. After a long power loss you reset the clock and date in the general settings menu, and the stored automatic up and down orders stay in memory.

Will the Telis 1 Chronis work with a Zigbee or wired motor?

It works with Somfy RTS motors and RTS receivers only. A Zigbee motor needs a Ysia remote or a TaHoma hub for scheduling. A wired 120V motor without a receiver can join the schedule once it sits behind a Somfy Universal RTS Receiver (1810627), since the Chronis then pairs to the receiver as it would to an RTS motor.

Shade Motors Direct is an authorized source for genuine Somfy motorized window shade, blind, and drapery parts.