TrickleStar TS1921 User manual

Installation Guide
TS1921 Occupancy Sensor

2
Table of Contents
1 Welcome! 3
2 What's in the box? 4
3 Sensor Overview 5
4 Sensor Setup and Installation 6
- Powering up the Sensor 6
- Pairing the Sensor 7
- Mounting the Sensor on a wall 10
 -PlacingtheSensoronaatsurface 11
 -Readyforuse 12
5 Sensor Occupancy Detection 13
- Changing Sensor Settings in the TrickleStar Portal 14
- Automated Thermostat Occupancy Mode Changes 16
6 Weighted Average of the Room Temperature from all Sensors 20
7 Sensor Specications 21
- Connectivity 21
 -Specications 22
 -Environmentally-friendlyfeatures 24
8 Sensor Maintenance 25
9 Troubleshooting 26
10 FCC Statement 27
11 IC Statement 28

3
Welcome!
Thank you for choosing the TrickleStar TS1921 Occupancy Sensor.
This Occupancy Sensor is an accessory for the TrickleStar Wi-Fi Smart Thermostat. The Sensor helps
the Thermostat to maximize comfort to your room as the Sensor can detect occupancy as well as
measure the temperature in the room. Maximum 6 Sensors can be connected to the Thermostat via
Bluetooth.
This Installation Guide describes how to install the Sensor and pair it to a TrickleStar Wi-Fi Smart
Thermostat.
If you have any inquiries about TrickleStar products or need technical support, visit our website for
tutorials, videos and Frequently Asked Questions (FAQ). You can also contact us by email or phone.
Instruction Videos
If you want to see the Installation Instructions
as videos, visit our YouTube channel:
https://www.youtube.com/user/TrickleStarUS/
Website: www.tricklestar.com
Email: [e-mail]
Toll Free: 1-888-700-1098

4
Fig 4-A
What’s in the box?
Occupancy
Sensor
QR code sheet Lithium cell battery
(CR2477X x 1)
Stand Double-sided
adhesive

5
Sensor Overview
Fresnel Lens
Stand
Battery Cover
Top View
Bottom View
LED Indicator
Battery Cover
Double-sided
adhesive
(for wall mount)
Slot (for stand)
Stand (detachable)
Pairing
Button
Fig 5-A
Fig 5-B

6
Sensor Setup and Installation
Powering Up the Sensor
To
power up the Sensor, gently remove the Sensor back cover by detaching the cover from the clips.
You
will
see an insulator on the battery with the caption “REMOVE BEFORE USE”. Lift the battery by
pulling
on the battery insulator and gently peel off the battery insulator.
Insert
the battery back into the Sensor’s battery compartment. Snap the back cover properly to
the
Sensor unit. Improper back cover installation will result in the Sensor not powering up.
When the Sensor is powered up, it enters Pairing mode automatically. The LED starts blinking and
continues blinking up to eight minutes.
REMOVE
BEFORE USE
Battery
Insulator
Insert the
battery
Fig 6-A
Fig 6-B

7
If the LED does not blink after the Sensor is powered up or after battery insertion, or if the Sensor goes
to sleep after eight minutes, hold the Pairing Button for 3 seconds to re-initiate pairing to the
Thermostat. The Sensor will enter Pairing mode again and broadcast itself for 8 minutes for Thermostat
scanning.
Pairing the Sensor
1.
Log in to your TrickleStar Portal account.
Scan the QR code to access the Portal.
2.
On the Dashboard screen, select Devices, then click on your
Thermostat Name to enter the Thermostat Control page.
3.
Select Sensors on the left panel, then click on “+” to add a new Sensor.
4. Enter the name for your Sensor.
5. Press Next once your Sensor LED is blinking to complete the pairing process. This will initiate a
scan function and Thermostat will scan for Sensors in range. Sensors that are detected will be
listed by their MAC addresses. Select the correct Sensor from the list of available
Sensors for pairing. Note: It may take up to 30 seconds to detect and pair a new Sensor.
6. Once your Sensor is successfully added, the Sensor Status maybe shown as “Not connected”.
Wait 1 to 2 minutes for the Sensor data to be auto-populated, or you may click on the “Refresh
Sensor Data” icon to update the sensor readings manually.
Fig 7-A

8
6
Fig 8-A
5. Press Next once your Sensor LED is blinking to complete the pairing process. This will initiate a scan
 functionandtheThermostatwillscanforSensorsinrange.Sensorsthataredetectedwillbelistedby
 theirMACaddresses.SelectthecorrectSensorfromthelistofavailableSensorsforpairing.Note:It
may take up to 30 seconds to detect and pair a new Sensor.
6. OnceyourSensorissuccessfullyadded,theSensorStatusmaybeshownas“Notconnected”.Wait1
 to2minutesfortheSensordatatobeauto-populated,oryoumayclickonthe“RefreshSensorData”
icon to update the Sensor readings manually.
Note:
• It is advisable to power up and pair the Sensors one at a time to minimise interferences to the pairing
process. The pairing process completes when Sensor Status is shown as “Connected”.
• During the pairing process, the Sensor must be placed near the Thermostat unit.
• Each Sensor can only be paired and connected to one Thermostat at any one time. Unpair the Sensor
from the existing Thermostat before pairing to a different Thermostat.
• Do not pair the Sensor to any other Bluetooth device.
• After the pairing process completes, mount or place the Sensor at the location where you want it to
sense occupancy or temperature readings. Maximum range is 98 ft (30 m) away from Thermostat.

9
If pairing is successful, the Occupancy Sensor will stop blinking. Then, the Bluetooth indicator appears
on the Thermostat display.
If pairing is unsuccessful or times out after 8 minutes, the LED will stop blinking and the Sensor will go
into standby mode. In standby mode, the connection between the Sensor and the Thermostat is not
set up. All the Sensor circuits will be shut down to save power. Hold the Pairing Button for 3 seconds
to initiate Pairing mode again.
Note: If the Sensor is previously registered, it will be added to the Thermostat network
automatically in Pairing mode. If disconnected, the Sensor will change to Pairing mode
automatically and try to reconnect with the Thermostat. User can also press the Pairing Button
to restart the Sensor in Pairing mode.
Fig 9-A

10
Fig 10-A
Mounting the Sensor on a wall
Before you mount the Sensor on the wall, be sure to check that:
• The Sensor is connected to the Thermostat.
• The Sensor is mounted away from direct heating or cooling sources, such as a fireplace or an air
ventilator.
Attach the double-sided adhesive to the Sensor. Then, mount the Sensor at a height of approximately
5 ft. (1.5 m) on the wall.
Note:
•Be sure to check that nothing is blocking the Sensor’s view for occupancy detection.
•It is advisable to locate the Sensor at least 3.3 ft. (1 m) away from the nearest neighbouring
Sensor.
5 ft.
(1.5 m)

11
Fig 11-A
Placing the Sensor on a flat surface
Before you place the Sensor on a flat surface, be sure to check that:
• The Sensor is connected to the Thermostat.
• The Sensor is placed on an even surface and at a safe location.
• The Sensor is facing the direction where you want to detect occupancy.
Attach the stand to the Sensor. Then, place the Sensor on a flat surface.
Note:
•Be sure to check that nothing is blocking the Sensor’s view for occupancy detection.
•
It is advisable to locate the Sensor at least 3.3 ft. (1 m) away from the nearest neighbouring Sensor.

12
Fig 12-A
Ready for use
Normal mode
The Occupancy Sensor is now ready for use. In Normal mode, the connection between the Sensor and
the Thermostat is set up. The Sensor will automatically update the Connection Status, Room
Temperature, Occupancy State and Sensor Battery Level in the Tricklestar Portal and Tricklestar App.

13
Sensor Occupancy Detection
The Occupancy Sensor is equipped with an occupancy detection feature using a PIR sensor to detect
the infrared signals of moving bodies.
To check the occupancy detection state on the Sensor itself, you can enable the Occupancy Detection
LED via the Sensor settings in the TrickleStar Portal. The LED will then blink once every 30 seconds
when it detected occupancy within the Sensor’s detection range.
By default, the Occupancy Detection LED feature is disabled. See page 14 to change the “Occupancy
Detection LED Enabled” setting.

14
2
1
Fig 14-A
Changing Sensor Settings in TrickleStar Portal
1. TochangetheSensorsettings,goto“Devices”tab>selectyourThermostatName>“Sensors”tab.
2. Click on the Sensor Settings icon.

15
3
Fig 15-A
3. Select and change your desired settings.

16
Automated Thermostat Occupancy Mode Changes
IftheSensordetectedan“occupied”state,itwillautomaticallychangetheThermostat’smodeto
Home(ifitwasinAwaymodepreviously).IftheSensordetectedan“absence”state,itwillchangethe
Thermostat’smodetoAway(ifitwasinHomemodepreviously).
YoucanadjusttheAbsenceDetectionSensitivityandOccupancyDetectionSensitivityfortheSensor.
Thesecontrolthetimedelaybeforean“absence”and“occupied”stateissentbytheSensorrespectively.
FortheOccupancyDetectionfeaturetoautomaticallychangetheThermostat’sMode:
a)TheOccupancyDetectionEnabledeldmustbesetto“Yes”,
b)TheSensorEnabledeldforeachindividualSensormustbesetto“Yes”,
c)TheSensorStatusinthePortalmustbeshownas“Connected”,
d)TheThermostatModemustbeinHomeorAway(notSleep),and
e)TheThermostatmustbeinSchedulemode,andnotinTemporary/Permanent/VacationHold.
Note:
• YoumayalsoconguretheSensortoonlymeasureroomtemperaturetocontroltheHVACsystemby
 selecting“No”fortheOccupancyDetectionEnabledeld.
• Doing so allows you to still be able to check the occupancy state of the Sensor in the Portal, but the
Sensor will not automatically change the occupancy mode of the Thermostat.

17
Fig 17-A
Fig 17-B
Changing Thermostat Mode from “Home” to “Away”
WhentheOccupancySensordetectednomovementwithinthe“AbsenceDetectionSensitivity”
duration,theThermostatwillautomaticallychangetheoccupancymodeto“Away(setbysensor)”if
thecurrentmodeis“Home”.
YourpresetSetTemperature(HeatandCool)andSetFan(HeatandCool)for“Away”modewillbe
followed.

18
Changing Thermostat Mode from “Away” to “Home”
WhentheOccupancySensordetectedmovementwithinthe“OccupancyDetectionSensitivity”
duration,theThermostatwillautomaticallychangetheoccupancymodeto“Home1(setbysensor)”
or“Home2(setbysensor)”ifthecurrentmodeis“Away”.Whichmodeischosendependedonwhich
Home mode is closest to the current time in the Schedule.
YourpresetSetTemperature(HeatandCool)andSetFan(HeatandCool)for“Home”modewillbe
followed.
Fig 18-A
Fig 18-B

19
If the Thermostat is in “Sleep” Mode
TheOccupancySensorwillnotbeabletochangetheThermostat’soccupancymode.
Note:
To cancel the occupancy mode changes, press and hold the jog dial for 3 seconds to return to current
schedule.

20
Weighted Average of the Room Temperature from all Sensors
TrickleStar Portal allows you to customize the weightings to be assigned to the temperatures measured
by each individual Sensor, and the Thermostat unit in the Sensor settings.
When you add Sensors to your TrickleStar Wi-Fi Smart Thermostat unit, the system automatically
calculates the weighted average of the room temperatures measured from all the Sensors and from the
Thermostat unit itself using the assigned weightings.
This weighted average is shown as the room temperature on the Thermostat’s LCD display, Portal
and the App. It will also be used to turn on/o the Heating or Cooling system to reach your congured
Setpoint Temperature.
Note:
• By default, all weightings will be 100% and the normal average of all room temperatures measured by
the Sensors and the Thermostat will be used.
• You may also set the weighting to be 0%, and exclude the room temperature reading from any of the
Sensor or Thermostat.
• If all the weighting (all Sensors and Thermostat) are set to 0%, the Portal will automatically adjust the
 Thermostat’sweightingto100%