ZIGBEE TMST-2B-ZBS User Manual

1

TMST-2B-ZBS Thermostat

Introduction

TMST-2B-ZBS is a battery powered ZigBee Thermostat. It is designed to be incorporated into household
heating and cooling system for home environment control. The Thermostat can be operated manually
using the LCD screen and buttons, or accessed remotely via ZigBee network. It feature Cooling, Heating,
Auto modes with temperature set point and automatic schedule for you to control your home
environment easily.
The Thermostat utilizes ZigBee technology for wireless signal transmission. ZigBee is a wireless
communication protocol that is reliable and has low power consumption and high transmission efficiency.
Based on the IEEE802.15.4 standard, ZigBee allows a large amount of devices to be included in a
network and coordinated for data exchange and signal transmission

The Thermostat serves as an end device in the ZigBee network. It can be included in the ZigBee network
to transmit signal upon activation, but cannot permit any other ZigBee device to join the network through
the Thermostat.

Parts Identification

1. LCD Display

The LCD displays the following information:

A. ZigBee network connectivity icon will be displayed

when the Thermostat has joined ZigBee network and is
within signal range.

B. The current mode will be displayed when the Up, Down or

Mode button is pressed.
Cool:
Heat:
Auto: Interval flash between and
Fan:
C. Current time and weekday
D. Away mode icon will be displayed when Thermostat

is under Away mode.
E. The temperature can displayed in Celsius or Fahrenheit

format.

2. Low Battery LED Indicator

The LED flashes when low battery voltage is detected

3. Test / ZigBee Network Button

- Press the button once to:
Send a supervision signal with temperature and set point info.

- Press and hold for 10 seconds then release to reset the Thermostat.

4. Down Button

Press the button to change set point.

5. Up Button

Press the button to change set point.

6. Mode Button

Press the button to change Thermostat mode.

2

7. Away Button

Press the button to change Thermostat to Away Mode.

8. Wall Mounting Holes

9. Back Cover Latch

Press both latches on the back cover to remove cover if needed.

10. Wiring Connection Terminals

Name Description Name Description
Y Cooling RH 24VAC Power Input
W Heating
G Fan
OB Reversing Valve

Refer to Wiring Diagram below for detail.

Wiring of the Thermostat should be performed by a certified technician with proper equipment
to ensure safety

11. Battery Compartment

Insert 2 AA Alkaline batteries to power on the Thermostat.

Features



Battery and Low Battery Detection

The Thermostat uses 2 AA Alkaline batteries as its power source. The Thermostat features Low
Battery Detection function. When the battery voltage is low, the Thermostat will transmit Low
Battery signal to the coordinator in ZigBee network. The Low Battery LED will also begin to flash to
indicate the condition.



Manual Operation



Mode and Temperature Setting:

Cool, Heat and Auto Mode



Press any of the UP, Down or Mode button, the Thermostat will display current mode,
temperature set point and light up LCD backlight for 4 seconds.



Press the Mode button again during this period to set Thermostat mode between Cool, Heat
and Auto.

Press the Up or Down button to select temperature set point.
Heat setpoint range: 9˚C ~ 30˚C.

Cool setpoint range: 11˚C ~ 32˚C.
When under Auto mode, you will first select Auto Cool set point and pressing UP or Down

button, press Mode button again to select to Auto Heat set point. The Cool set point must be
at least 2℃ higher then Heat set point.



Press the Mode button The Thermostat will exit setting screen and apply the new setting
after 4 seconds of inactivity.

3



Away Mode
The Thermostat can be put into Away mode when the user leaves the house by pressing the

Away button.



To program Away Mode setting, press and hold Mode button for 3 seconds. You will first
program Away Cool set point, press Mode button after finish setting to program Away Heat
set point, the Cool set point must be at least 2℃ higher then Heat set point. Press Mode

button again to program Fan setting when done.



Fan Setting



When in Fan setting, press UP or Down button to select fan option between Always on or
Auto mode.

Always On ( icon steady on) – The fan is always turned on except under Off Mode
Auto mode ( icon flash) – The fan will be turned on according to Away, Cool and Heat

mode setting.



Off Mode
The Thermostat can be put into Off mode by pressing and holding the Away button for 3

seconds. When under Off mode, the Thermostat stop all function and only display current time.



Time / Temperature Display / HVAC Type Setting:

Press and hold the Mode button for 10 seconds to enter setting mode. The time on LCD display
will begin to flash:



Use the Up and Down buttons to select time and Mode button to proceed to next option.
Available options include:

1.

Weekday

2.

Hour

3.

Minute,

4.

AM/PM or 24-hour format display. (You can only change the time display format when
the time is set to between 1:01~12:59)

5.

Celsius or Fahrenheit display

6.

HVAC type: Type 1 = Gas/Electric, Type 2 = Heat Pump(O), Type 3 = Heat Pump(B).

Factory Default HVAC Type = 1 Gas/Electric



HVAC Type

According to the HVAC system in the home environment, select the HVAC type in Thermostat
setting.
Type 1: General Gas/Electric HVAC system
Type 2: HVAC system with Reversing Valve which operates during Cooling (Heat Pump “O”)
Type 3: HVAC system with Reversing Valve which operates during Heating (Heat Pump “B”)



Remote Control

After the Thermostat joins a ZigBee network, you can control the Thermostat via ZigBee network
coordinator or gateway. Please refer to your ZigBee coordinator/gateway manual for more
information.
The following functions are only available for setting via ZigBee coordinator and gateway:



Schedule:

You can only program Schedule configuration via ZigBee network coordinator/gateway.
Schedule Setting: Up to 5 schedules can be programmed for every weekday with Mode,

Setpoint and Start time.
Schedule Control:
Normal - The Thermostat will execute programmed schedule setting accordingly.
Hold – The Thermostat will bypass currently timed schedule and perform the next schedule

when it begins
No Schedule – The Thermostat will not execute any set schedule until it is set to Normal again.



Temperature Detection



The Thermostat has built-in temperature sensors and will display the temperature reading on
the LCD display



The Thermostat will transmit temperature signals regularly according to setting. The factory
default interval is 10 minutes.



When the temperature changes by +/- 2˚C, the Thermostat will also transmit a signal.



You can also press the ZigBee Network Button once to transmit a temperature signal manually.