Remotec ZXT-120 User manual

1
ZXT-120
(Z-Wave-to-AC IR Extender)

2
Table of Contents
Introduction.................................................... 3
Controller and Gateway Requirements ............ 4
Built-in IR code library .................................... 4
Glossary .......................................................... 5
ZXT-120 Operations ........................................ 6
Product Overview............................................. 7
Z-Wave Remote Control ................................... 8
ZXT-120 Information ....................................... 9
Listening Mode ................................................ 10
IR Code Learning ............................................ 11
Reset ZXT-120 to factory default........................ 12
INSTALLATION................................................ 13
MOUNTING THE ZXT-120 TO A WALL.................. 13
WIRELESS INFORMATION ............................... 16
MAINTENANCE................................................. 16
FREQUENTLY ASKED QUESTIONS .................... 16
Z-Wave Frequently Asked Questions................... 16
TECHNICAL SPECIFICATIONS.......................... 18
CHECKING ACCESSORIES ................................ 23
FCC NOTICE .................................................... 23
WARNINGS...................................................... 23
CAUTION ........................................................ 23

3
Z-ExtenderTM ZXT-120
(Z-Wave-to-AC IR Extender)
Operating Instructions
Introduction
The ZXT-120 is a Z-Wave to air-conditioner (AC) IR Extender (Figure
1) and it works with any Z-Wave compliant gateway or portable
controller by translating Z-Wave’s Thermostat commands to AC IR
control code. User can set the IR code from the built-in code library of
ZXT-120 through the configuration commands, or use the learning
function of ZXT-120 through the UI on gateway. ZXT-120 also built-
in a temperature sensor that allow to report your room temperature to
home gateway. It can be utilized to control or monitor your room
temperature by your smart phone or PC while you are at office, home
anywhere or around the world.
Figure 1 ZXT-120
ZXT-120 can be configured as either “Frequently Listening Routing
Slaves” (FLiRS) or “Always Listening” node after exclusion process.
FLiRS node type is targeted for battery operated applications and it
will enter sleep mode frequently in order to conserve battery
consumption that can provide the flexibility if there is out of 5Vdc
power source. Also, user can place the unit in anywhere at home.
Always Listening node type is targeted for the needs of required a fast
response application. The installed location should come with 5Vdc
power source. Always Listening node can act as a repeater, which will
re-transmit the RF signal to ensure that the signal is received by its
intended destination by routing the signal around obstacle and radio
dead spots.
ZXT-120 supports Network Wide Inclusion (NWI) and Explore
Frames. It also supports Z-Wave networks with multiple gateways and
controllers. Like every Z-Wave accessory, user will need to include the

4
ZXT-120 into their Z-Wave network using the primary controller.
Then, the user can use either the primary controller or secondary
controller to configure and setup the ZXT-120 using Z-Wave’s
configuration command class. Once the configuration and setup is
complete, the controller can use Z-Wave’s “Thermostat commands
class” to control their IR-controlled air-conditioner with the ZXT-120.
Controller and Gateway Requirements
The ZXT-120 is architected to work with any Z-Wave compliant
controller or gateway supporting the following Z-Wave commands.
-Configuration Command Class
-Multilevel Sensor Command Class
-Sensor Configuration Command Class
-Thermostat Command Class
Thermostat Mode Command Class
Thermostat Fan Mode Command Class
Thermostat Set-point Command Class
Built-in IR code library
The built-in IR code library enables the ZXT-120 to work with any Z-
Wave compliant gateway and controller. Gateway and controller will
not need to have any knowledge related to IR control code. It also
eliminates the needs of complicated set up procedures and proprietary
Z-Wave commands to configure the system. The IR code library
supports various brand name air conditioners found in the today’s
market. User can use his controller or gateway to send a 3 digits AC IR
code number (include the brand selection) using standard Z-Wave
configuration command.

5
Glossary
Device or Node Devices and nodes are all terms to describe
an individual Z-Wave device. These are all
interchangeable when setting up your Z-
Wave network.
Inclusion Add a Z-Wave device to the network.
Exclusion Delete a Z-Wave device from the network.
Remove To take a device out of a group, scene or
association group while that device still
exists in the same Z-Wave network.
Z-Wave
Network
A collection of Z-Wave devices is controlled
by primary and secondary controllers
operating on the same system. A Z-Wave
network has its own unique ID code so that
controllers not in the network cannot control
the system.
Primary
Controller
The first controller is used to set up your
devices and network. Only the Primary
Controller can be used to include or delete
devices from a network. It is recommended
that you mark the primary controller for each
network for ease in modifying your network.
Secondary
Controller
A controller containing network information
about other devices within the network and is
used for controlling devices. Secondary
controller is created from the Primary
Controller and cannot include or delete
devices to the network.
Inclusion
Controller
A controller containing network information
about other devices within the network and is
used for controlling devices. Inclusion
controller is created from the Primary
Controller in a SIS enabled Z-Wave network.
Inclusion Controllers have the ability to add
and remove devices from the network.

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ZXT-120 Operations
Before using the ZXT-120, please read the [INSTALLATION] if it is
needed to mount the ZXT-120 to a wall. Power up the ZXT-120 by the
USB Power 5Vdc or Dry battery AAA x 3pcs.
xPlug-in 5Vdc power into the USB socket if operated at Always
Listening mode. Or
xInstall 3xAAA batteries if operated at FLiRS mode.
xPlease refer to the section of [MOUNTING PROCEDURE].
xRemove the battery cover on the back of your ZXT-120 battery
chassis.
xMount the battery cover into the main unit with 2 screws.
xCheck the polarity of the batteries and the "+/-" marks inside the
battery compartment.
xInsert the batteries.
xPush the battery cover and main unit back in place.
L
CAUTION (battery and power adaptor safety)
Use new batteries of the recommended type and size only.
Never mix used and new batteries together.
To avoid chemical leaks, remove batteries from the ZXT-120
if you do not intend to use the remote for an extended period
of time.
Dispose of used batteries properly; do not burn or bury them.
(Please carefully read through the following then store the manual for
future reference.)

7
Product Overview
Figure 2 PROG Key and IR Port of ZXT-120
Temperature sensor
“PROG” Button,
Learning and LED
Indication
External
IR Port USB Power
5V DC
Battery
chassis
Surround IR Output for
to
p
and 4-directions

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Z-Wave Remote Control
1) Select your operation mode; please refer to ĀListening Modeā
section.
2) Include or Exclude the unit from the existing Z-Wave home
control network with your primary controller.
- Refer to your primary controller instructions to process
the inclusion / exclusion setup procedure.
- When prompted by your primary controller, click once on
the PROG button.
- The primary controller should indicate that the action was
successful. If the controller indicates the action was
unsuccessful, please repeat the procedure.
3) User can use either the primary controller or secondary controller
(should support configuration command class) to setup the ZXT-
120 AC code by the parameter 27 (IR code number for built-in
code library), please refer to code list for the parameter value then
setup your AC control code.
4) Once the configuration and setup were completed, the controller
can use Z-Wave’s “Thermostat commands class” to control their
IR-controlled air-conditioner with the ZXT-120.
5) You can record down your device code under the below table for
future reference after setting up the ZXT-120 correctly.
AC device programmed to your ZXT-120
Code no.:

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ZXT-120 Information
How to get the NIF “Node Information Frame” on ZXT-120
Step Setup Key
LED Indication
Status on ZXT-120
1
Press the PROG button on
the ZXT-120 xLED flashes once
then stay off
(ZXT-120 will report
the supported
command class)
Parameter No. and Parameter Value of configuration command
Parameter
Number Definitions Parameter Value
25
(0x19) Indicate a location for IR code learning and start
learning
1-20
(0x00 – 0x14)
26
(0x1A) Learning status register
Note:
The status value 0x01 and
0x04 will be reset to 0
when the ZXT-120 receive
a get command to this
parameter
0x00: Idle - this IR
channel is idle
(default)
0x01: OK - the latest
learning process
successful and
completed
0x02: Learning - the
ZXT-120 is busy
processing previous
learning request
0x04: Failed - the
latest learning request
failed
27
(0x1B) IR code number for built- in code library Refer “Code list” for
details
28
(0x1C) External IR Emitter power level 0x00: normal power mode
0xFF: high power
mode (default)
32
(0x20) Surround IR control
-to avoid the IR
interference by disabling
the surrounding IR
emitter if 2 air-
conditioners in a room
0x00: disable
Surround IR Emitters
0xFF: enable
Surround IR Emitters
(default)

10
are used
-extend the battery life
by disabling the
Surround IR Emitters
34
(0x22) Indicate a location for transmitting a learnt IR
code
1-20
(0x00 – 0x14)
Parameter Table
L
Mapping Information
BASIC Set Value 0x00 will map to Thermostat mode Off
0x00.
BASIC set Value 0xFF will map to Thermostat mode Resume
0x05.
Listening Mode (default mode is FLiRS)
ZXT-120 can be configured as either “Frequently Listening Routing
Slaves” (FLiRS) or “Always Listening” node after exclusion process.
FLiRS node type is targeted for battery operated applications and it
will enter sleep mode frequently in order to conserve battery
consumption.
Always Listening node type is targeted for the needs of required a fast
response application.
Important:
It is not allow changing ZXT-120 operation mode without the step of
exclusion process.
How to switch ZXT-120 listening mode from ϘAlways Listeningϙto
ϘFLiRSϙ(or vice verse)
Step Setup Key
LED Indication
Status on ZXT-120
1Press and hold the PROG button on the ZXT-120 for
around 4 seconds
xLED stay off
2
Release the button and
then press the PROG
button 3 times within 3
seconds
xLED flashes twice
then stay off
(ZXT-120 set in
FLiRS mode)
OR

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xLED flashes four
times then stay off
(ZXT-120 set in
Always Listening
mode)
IR Code Learning
User can follow the gateway UI to implement the learning function, the
learnt IR code will be stored in a specify control key which contains
the Mode, Temperature and Fan Speed information.
Learning example for Key_1:
Mode = COOL
Temperature = 20oC
Fan Speed = HIGH
How to learn an IR code on ZXT-120
Step Setup Key
LED Indication
Status on ZXT-120
1
Configuration command
class with following
parameter number and
value are received.
Parameter number: 25
Parameter value: 1 – 20
xLED flashes once
2
Place the ZXT-120 and
your device remote as
shown below, aimed at
each other 1-3 inches apart.
-
3
Press and keep holding the
key on your original
equipment remote until
ZXT-120 reacted.
xLED flashes twice
and then OFF
(learn code
success)OR
xLED flashes six
times rapidly and
then OFF
(learn code fail)

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Figure 3 Learning setup
Reset ZXT-120 to factory default
Press and hold “PROG” button for 10seconds on ZXT-120. The LED
will flash twice until reset process is completed.
Note: This reset step will not affect the operation mode of ZXT-120,
user should refer to
Ϙ Listening Mode ϙ section if you want to change
the operation mode.
L
Important Information
If you are using Gateway or other Z-wave controllers to
operate ZXT-120, Please follow the instruction from the
gateway or other controller.
You can check either the specifications in the manual of your
ZXT-120 or also check online at www.remotec.com.hk for a
full list of products that can be used with your ZXT-120.

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INSTALLATION
MOUNTING THE ZXT-120 TO A WALL
MOUNTING LOCATION PRECAUTIONS
xBefore mounting, check the material and structure of the mounting
location. If the location does not have the proper material or
structure, the ZXT-120 can fall and cause injuries.
xUse commercial items that best match the wall structure and
material for the screws and other fixtures.
xDo not mount near a kitchen counter, humidifier, or other location
in which it can be exposed to smoke or steam. Doing so could
cause a fire or electrical shock.
xDo not mount in locations with high humidity or large amounts of
dust. Doing so could cause a fire or electrical shock.
xDo not mount to locations subject to high temperatures, high
humidity, or exposure to water. Doing so could cause a fire or
electrical shock.
xDo not mount to locations subject to large amounts of vibration,
large jolts, or large forces. These could cause an injury if the ZXT-
120 falls and breaks.
MOUNTING PROCEDURE PRECAUTIONS
xDo not modify parts or use the ZXT-120 in ways other than its
intended use. Doing so could cause the ZXT-120 to fall and result
in an injury.
xBe sure to fully check that there are no electrical wires or pipes
inside the wall before mounting.
xIf any of the screws are loose, the ZXT-120 can fall and cause an
injury. Do not mount the ZXT-120 with the screws still loose.
xCheck that the two screws mounted to the wall are fully inserted
into the key holes of the ZXT-120. Otherwise, the ZXT-120 can
fall and cause an injury.
xDo not mount the ZXT-120 so that it sticks out from the wall edge.
It could get hit by people’s bodies or objects and cause an injury.
xSupplier will not be liable for any accidents or injuries that occur
due to improper mounting or handling.
xWhen mounting, be careful not to get your fingers pinched or
injure your hands.
MOUNTING PROCEDURE
The ZXT-120 can be mounted to a wall or wooden racks using the two
key holes in the bottom case.
Note 1: The reception sensitivity varies depending on the antenna
direction.
Note 2: Before mounting to a wall, be sure to fully read the precautions.

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1. Obtain two screws suitable for the wall strength and material. The
screw size is shown in the figure below.
2. The positional relationship between the ZXT-120 key holes and
the screw mounting positions are shown in the figure below.
Note 1: When mounting the screws to the wall, leave a space
between the wall and screw cap as shown in the figure.
3. Insert the ZXT-120 key holes onto the two screws mounted to the
wall, and then slide downward to secure in place.
4. After securing the ZXT-120 to the wall, connect the USB Power
or batteries and IR emitter cable to the ZXT-120.
Note 1: Check that the ZXT-120 is firmly secured to the wall.
Note 2: Insert USB plug or batteries and IR emitter cable so that
they are firmly connected to the ZXT-120.

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5. When removing the ZXT-120 from the wall, lift up the ZXT-120,
then pull it towards you.
6. Detach the main unit from the battery chassis by move toward to
top position.

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WIRELESS INFORMATION
Wireless range:
This device has an open-air line-of-sight transmission distance of 100
feet which complies with the Z-Wave standards. Performance can vary
depending on the amount of objects in between Z-Wave devices such
as walls and furniture. Every Z-Wave device set up in your network
will act as a signal repeater allowing devices to talk to each other and
find alternate routes in the case of a reception dead spot.
Radio frequency limitations:
1. Each wall or object (i.e.: refrigerator, bookshelf, large TV, etc) can
reduce the maximum range of 65 feet by up to 25 to 30%.
2. Plasterboard and wooden walls block less of the radio signal then
concrete, brick or tile walls which will have more of an effect on
signal strength.
3. Wall mounted Z-Wave devices will also suffer a loss of range if
they are housed in metal junction boxes which could also reduce
the range by up to 25 to 30%.
MAINTENANCE
1 Do not expose your ZXT-120 to dust, strong sunlight, humidity,
high temperatures or mechanical shocks.
2 Do not use old and new batteries together as old batteries tend to
leak.
3 Do not use corrosive or abrasive cleansers on your ZXT-120.
4 Keep the unit dust free by wiping it with a soft, dry cloth.
5 Do not disassemble your ZXT-120, it contains no user-serviceable
parts.
FREQUENTLY ASKED QUESTIONS
Z-Wave Frequently Asked Questions
Q Why won’t my ZXT-120 work with the Z-Wave devices I
purchased from another country?
A Due to different countries regulations Z-Wave products from
different regions are set to different frequencies. Before purchasing
new devices make sure you have checked that the device is
compatible in your region.
Q How do I know which product is compatible with my ZXT-120?
A ZXT-120 should work with any Z-Wave controller or gateway that
has control capability for “Thermostat” devices. You can check
either the specifications in the manual of your ZXT-120 or also
check online at www.remotec.com.hk for a full list of products that
can be used with your ZXT-120. All Z-Wave products also come
with the Z-Wave logo.

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Q Can I use the USB port to configure ZXT-120?
A No, the mini USB port only provides an alternative option for user
to power the ZXT-120.
Q Do I need an electrician to install Z-Wave products in my
house?
A Installation can be simple. In some cases all you need to do is
mount the ZXT-120 to a wall or wooden racks. You also can place
the ZXT-120 on the desk and power it with dry cell batteries.
Q How to select my air-conditioner IR code from ZXT-120?
A You should refer to the code list and look into the brand and try
the code no. sequentially until you find the right code. You can
record down your device code under the table for future reference
after setting up the ZXT-120 correctly.
Q ZXT-120 is working on top and 4-directions IR output, but
there is no response on the IR emitter socket, why?
A ZXT-120 supports two IR power levels for the external IR emitter
to avoid saturation of the IR receiver. You can set the IR output
power level by the Parameter Table value (normal or high power
mode) or adjust the position of your external IR emitter.
Q Can I use 2 or more ZXT-120 in my house? What is the max.
units if yes?
A Yes and it is very depend on the capability of gateway / controller.
For example, gateway can supports up to 8, 16 or 32 ZXT-120 in a
network.
Q How to avoid the IR interference if I am using 2 identical air-
conditioners in same location but want to control them
individually?
A User can disable the Surround IR Output function, connect the
external IR emitter and aim it at the specific AC unit. The
operating distance of external IR emitter is around 100cm (High
power mode) and 50cm (Low power mode) but it is also depends
on the sensitivity of the IR receiver.
External IR emitter cable

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Q Where can I keep up to date with the latest Z-Wave products
for my house?
A You can keep up to date by visiting the www.remotec.com.hk
website where we will have information and ideas for using Z-
Wave technology.
TECHNICAL SPECIFICATIONS
Model no.
BW8377EU (ZXT-120EU)
BW8377AU (ZXT-120AU)
BW8377US (ZXT-120US)
BW8377IN (ZXT-120IN)
RF frequency
868.4MHz (EU) (ZXT-120EU)
921.4MHz (AU) (ZXT-120AU)
908.4MHz (US) (ZXT-120US)
865.22MHz (IN) (ZXT-120IN)
RF operating distance up to 80ft outdoor line of sight, in unobstructed
environment
IR operating distance up to 25ft line of sight, in unobstructed environment
IR learning Max. 20 commands
Temperature Measurable range: 32 – 104 °F / 0 – 40 °C
Operation: 0 - 40°C
Storage: -20 - 60°C
Powered by USB Power DC 5V 100mA or
Dry battery AAA x 3pcs
Dimension Dia.=70mm, T = 18mm (Main unit)
Dia.=70mm, T = 15.5mm (Battery chassis)
Weight 35g (Battery chassis excluded)
60g (Battery chassis included)
90g (Main + Battery chassis + AAA x3pcs)
Z-Wave device type
Basic Device Class: BASIC_TYPE_ROUTING_SLAVE
Generic Device Class: GENERIC_TYPE_THERMOSTAT
Specific Device Class: SPECIFIC_TYPE_THERMOSTAT_GENERAL_V2
Z-Wave Command Class Version Controlled Supported
COMMAND_CLASS_THERMOSTAT_MODE Version2 NO YES
COMMAND_CLASS_THERMOSTAT_SETPOINT Version2 NO YES
COMMAND_CLASS_THERMOSTAT_FAN_MODE Version2 NO YES
COMMAND_CLASS_BATTERY Version1 NO YES
COMMAND_CLASS_CONFIGURATION Version1 NO YES

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Supported function in Thermostat Command Class
Z-Wave command class Description Supported
Auto/Auto Low YES
Low YES
Auto High YES
High YES
Auto Medium YES
Thermostat Fan mode
Medium YES
Heating YES
Cooling YES
Furnace NO
Dry Air YES
Moist Air NO
Auto changeover YES
Energy Save heating NO
Energy Save cooling NO
Thermostat Set point
Away heating NO
Off YES
Heat YES
Cool YES
Auto YES
Auxiliary/Emergency Heat NO
Resume YES
Fan only YES
Furnace NO
Dry Air YES
Thermostat Mode
Moist Air NO
COMMAND_CLASS_BASIC Version1 NO YES
COMMAND_CLASS_VERSION Version1 NO YES
COMMAND_CLASS_SENSOR_MULTILEVEL Version1 NO YES
COMMAND_CLASS_POWERLEVEL Version1 NO YES
COMMAND_CLASS_SWITCH_ALL Version1 NO YES
COMMAND_CLASS_MANUFACTURER_SPECIFIC Version1 NO YES

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Auto Changeover NO
Energy Save Heat NO
Energy Save Cool NO
AWAY NO
ZXT-120 functions and Parameters summaries:
FUNCTIONS
AIR
CONDITIONER
FUNCTION
Z-WAVE COMMAND CLASS Z-WAVE
COMMAND
COMMAND
PARAMETER
COMMAND_CLASS_THERMOSTAT
_MODE
THERMOSTAT_
MODE_SET MODE = 5
POWER ON
COMMAND_CLASS_BASIC BASIC_SET VALUE = 0XFF
COMMAND_CLASS_THERMOSTAT
_MODE
THERMOSTAT_
MODE_SET MODE = 0
POWER
POWER OFF
COMMAND_CLASS_BASIC BASIC_SET VALUE = 0X00
AUTO COMMAND_CLASS_THERMOSTAT
_MODE
THERMOSTAT_
MODE_SET MODE = 3
COOL COMMAND_CLASS_THERMOSTAT
_MODE
THERMOSTAT_
MODE_SET MODE = 2
FAN COMMAND_CLASS_THERMOSTAT
_MODE
THERMOSTAT_
MODE_SET MODE = 6
HEAT COMMAND_CLASS_THERMOSTAT
_MODE
THERMOSTAT_
MODE_SET MODE = 1
MODE
DRY COMMAND_CLASS_THERMOSTAT
_MODE
THERMOSTAT_
MODE_SET MODE = 8
HEAT mode
Temperature
SETPOINT TYPE =
1, TEMPERATURE
VALUE
COOL mode
Temperature
SETPOINT TYPE =
2, TEMPERATURE
VALUE
DRY mode
Temperature
SETPOINT TYPE =
8, TEMPERATURE
VALUE
TEMPERATURE
SETTING
AUTO mode
Temperature
COMMAND_CLASS_THERMOSTAT
_SETPOINT
THERMOSTAT_
SETPOINT_SET
SETPOINT TYPE =
10, TEMPERATURE
VALUE
COMMAND_CLASS_THERMOSTAT
_FAN_MODE, v1
THERMOSTAT_
FAN_MODE_SE
T
FAN MODE = 0
FAN AUTO
COMMAND_CLASS_THERMOSTAT
_FAN_MODE, v2
THERMOSTAT_
FAN_MODE_SE
T
FAN MODE = 0, 2, or
4
COMMAND_CLASS_THERMOSTAT
_FAN_MODE, v1
THERMOSTAT_
FAN_MODE_SE
T
FAN MODE = 1
FAN SPEED
FAN LOW (1/3)
COMMAND_CLASS_THERMOSTAT
_FAN_MODE, v2
THERMOSTAT_
FAN_MODE_SE
T
FAN MODE = 1