1. TR20 Series Wireless Training Slides
New Product Introduction
March 2009
Welcome to the TR20 Series Wireless product introduction training. This session provides an introductory overview of the TR20 Wireless Sensor products. This training session will cover features, setup and installation of the TR20 Series wireless sensor.
Let’s get started.

2. Benefits to Distributors and Contractors
Retrofit job where re-running wire is difficult or impossible?
The latest in technology is requested by the building owner?
Code requires running expensive conduit for all wiring?
Tall ceilings? No good place to run wires?
Have a building where walls will be moving?
Want to substantially reduce labor cost on any new or retrofit install?
For all these reasons and more, consider wireless!

3. TR20 Series Wireless Overview
Point to Point
Direct replacement for a wired sensor
Can be used with Spyder, XL10, T7350/51 thermostats, etc
Not compatible with TB7220 or TB8220 thermostats, or XL15
Two Sensor options
With temperature only
TR21-WK kit or TR21-WS sensor only
With temperature, setpoint knob, and override button
TR23-WK kit or TR23-WS sensor only
Sold as a kit - matched pair.
On board signal strength indicator
No need for diagnostic tool.
Receiver
The TR20 Series is a family of Wireless Wall modules and recievers. These wall modules and receivers provide a point to point solution that can directly replace any wired sensor. The TR20 Wireless sensors can be used with various Honeywell controllers including the Spyder Unitary Controller, Excel 10 and the T7350 thermostats. These sensors are not compatible with Commercial Vision Pro, TB7720 or TB8220 thermostat.
Wireless sensor
Replace a wired sensor, without the wires!

4. TR20 Series Wireless Specifications
Basic Specs
Protocol – 2.4 GHz, compliant, FCC approved.
Open Range – 3000 feet
Typical Range in a Building – 100 feet
Accuracy – +/- 1ºF (+/-0.5ºC) from 54-86ºF (12-30ºC)
Battery life approximately 5 years with alkaline batteries (included), years with lithium batteries
(this can vary depending on how often the override button is pressed).
Receiver
Wireless sensor

5. TR20 Series Wireless Sensors
Sensor Types
Sensors are available in either the TR21 style (temperature only) or TR23 style (temp, override button, and setpoint knob).
Sensor transmission rate is every 30 seconds
If override button is pressed, transmits immediately.
To save battery life, override light will not remain on after button is pressed – but system overrides none-the-less.

6. TR20 Series Wireless Installation
Installation steps for the wireless kit TR2X-WK
Mount the receiver next to the controller
Wire the receiver to the controller just as you would a wired sensor. Power the controller. See other slides for wiring
Insert batteries into the sensor
Communication should start automatically after 5-10 seconds.
Press the signal strength indicator on the side of the sensor. Signal strength LED flashes, see table below.
Green is strongest, yellow is weaker but acceptable. Whenever possible, mount in locations giving a green signal.

7. TR20 Series Wireless Dips
Prebound Kits and Dip Switches
TR21-WK and TR23-WK kits come shipped with sensor and receiver pre-bound at the factory
No need to bind kits in the field or touch dip switches! Just power both devices, communication starts automatically.
Pre-bound kits have binding dip switches all set at the OFF position – each pre-bound kit communicates on it’s own unique “channel”.
In case of replacement, dip switches are provided to bind any sensor to any receiver! Make sure to set dips differently at each kit in a given building.
Labels on the receiver can be used to record dip positions.

8. TR20 Series Wireless Dip Switch settings
S1 is for controller selection. Default setting (1 on, others off) works for XL10, Spyder. See installation instruction for other options.
S2 and S3 dips on receiver must match sensor dips, see diagram. Pre-bound kits come with all dips in OFF position, no need to adjust.

9. TR20 Series Wireless Compatibility
Can replace any standard TR21, TR22, TR23, TR24, or T7770A, T7770B, T7770C, T7770D wall module.
Use on Spyder or XL10 controllers. Not compatible with all Honeywell controllers.
Wiring diagram
The TR20 Wireless sensors can be used to
Wiring to an XL10

10. TR20 Series Wireless Compatibility (con.)
Wiring to a Spyder controller
(low bat wiring is optional)

11. TR20 Series Wireless Compatibility (con.)
Wiring to T7350 and T7351 thermostats
(not compatible with TB7200 or TB8220 thermostats)
T7350/51

12. TR20 Series Wireless Low Battery Signal
With approximately 2 months of battery life remaining, the override button LED will flash red every 15 seconds.
The low bat Digital Output on the receiver will close
Use this as a digital input on your controller to signal a low battery alarm.
Note: Low battery indicator does not occur when no batteries are installed, or if batteries are completely dead.
Replace batteries every 5 years, or when low battery signal occurs.

13. TR20 Series Wireless General Installation tips
Do not mount receiver or sensor in metal enclosures
If mounted on metal, try to keep line of sight between sensor and receiver as free of metal as possible (ducts, metal book cases, etc.)
Gypsum (drywall) and windows will not significantly affect the signal. Metal studs don’t interfere much unless you have an oblique angle through the wall.
Always check signal strength indicator before installing sensor
ideal
Oblique angle less preferred
wall
wall

14. Sensor Part Numbers and Literature
Description
TR21-WK
Comes with TR21 style sensor and receiver
TR23-WK
Comes with TR23 style sensor (with override button and setpoint knob) and receiver
TR21-WS
TR21 style sensor only, for replacement
TR23-WS
TR23 style sensor only, for replacement
WRECVR
Receiver, for replacement
Literature Form
Description
Installation Instruction
Specification Data