Heatit Z-TRM3 User guide

1. INTRODUCTION
Heatit Z-TRM3 is an electronic thermostat for electrical floor heating,
designed to be mounted in a standard flush box. The thermostat has
a built-in Z-Wave chip that can be connected with Home Automation
systems. Heatit Z-TRM3 is equipped with a single-pole relay and fits
into System 55 frames. The thermostat can withstand a load of max
16A /3600W at 230VAC.
NB! If the sensor mode is changed to A or AF mode then a room
sensor compensation process will start, which limits maximum power
output to 75%. The thermostat adapts to the environment within a
few days. No internal sensor calibration should be performed during
the first few days.
2. STATEMENT REGARDING PRODUCTS FROM MULTIPLE
MANUFACTURERS
Please read this before installation
This device may be used with all devices certified with the Z-Wave
Plus™ certificate and should be compatible with such devices
produced by any manufacturer. Every primary controller is different
depending on the manufacturer, their target audience and intended
use/application. Please review the functionalities implemented by the
primary controller you intend to use with our Z-Wave Plus certified
device to ensure that it provides the necessary controls to take full
advantage of our product’s capabilities.
3. BEHAVIOR WITHIN THE ZWAVE™ NETWORK
This device may be operated within any Z-Wave network with
Z-Wave-certified devices from other manufacturers. All non-battery-
operated nodes within the network will act as repeaters regardless of
manufacturer to increase the reliability of the network. On delivery, the
device does not belong to any Z-Wave network.
The device needs to be added to an existing network to communicate
with the other devices within it. Devices may also be removed from
a network. The add/remove processes are initiated by the primary
controller of the Z-Wave network.
4. QUICK START
1. Switch off the mains supply (disable the fuse).
2. Open the wall switch box.
3. Connect wires according to the labeling described in
chapter 5 ”Installation”.
4. After verifying the connections, switch the mains supply back on.
5. Set the primary controller in add mode (security/non-security).
6. Press and hold the center button until“OFF”is shown on the display
(approx. 10 seconds).
7. Press down button until you reach“CON”, press and hold until the
display shows a rotating light pattern.
8. The thermostat will display“INC”when the thermostat is successfully
added.
NB! If adding/removing fails, Err (error) will appear.
TABLE OF CONTENTS
1 Introduction
2 Statement regarding products from multiple manufacturers
3 Behavior within the Z-Wave™ network
4 Quick Start
5 Installation
5.1 Controls
6 Add/Remove
6.1 Method 1: Standard (Manual)
6.2 Method 2: SmartStart (Automatic)
7 Factory Reset
7.1 Startup
8 Principles of regulation
9 Programming thermostat
10 Temperature shown in display
11 Standby and main screen
12 Choice of sensor
13 Selecting the right Ohm value for your external floor sensor
14 Calibration
15 Brightness
16 Hysteresis (dIF)
17 Min/Max temperature settings
18 Fast functions from Standby / Main Screen
18.1 Display on/off (don/doF)
18.2 Child lock (Loc)
19 Error codes
20 QR-Code placement (DSK)
21 Security
22 Node Information Frame
23 Associations
23.1 Setting and removing associations
23.2 Multichannel support
23.3 No multichannel support
23.4 Association groups
24 Configuration parameters
25 Command class specifications
26 Product information
HEATIT
ZTRM3
Installers manual
Ver 2021-B
Firmware 4.0
01.01.2021

5. INSTALLATION
Installation must be done by a qualified electrician in accordance with
the National Building codes. Before installation, disconnect the power
to the device from the mains. During installation of the device, power
to the device must be disconnected AT ALL TIMES!
5.1 Controls
Use e.g. a small slotted screwdriver. Start by carefully removing the
front cover by pushing the release springs. The front cover and the
frame may now be removed.
Connect the wires to the thermostat terminals:
Use 1.5mm² or 2.5mm² according to load.
HEATING (N) Heating cable connection (Neutral)
N Power connection (Neutral) 230VAC
L Power connection (Live) 230VAC
HEATING (L) Heating cable connection
FLOOR SENSOR NTC type (10, 12, 15, 22, 33 or 47kΩ)
Default 10kΩ
EXTERNAL SENSOR NTC type (10, 12, 15, 22, 33 or 47kΩ)
Default 10kΩ
Next, position the thermostat and mount it into the wall flush box
using 2-4 screws. Position the frame over the flush box, then position
and carefully press the front cover until it snaps in place. Check that
the front cover has snapped in place properly on both sides. The front
cover should now fit firmly on all sides. In order to read the Power
Metering, the load needs to be connected to both heating L + N.
Note! The top cover has to be installed when the thermostat
is connected to the main power source. The thermostat is not
a SELV product. All voltage parts must be considered to be
230VAC.
6. ADD/REMOVE
Please read this before installation
The primary controller/gateway has a mode for adding or removing
devices. Please refer to your primary controller manual on how to set
the primary controller in add/remove mode. The device may only be
added or removed from the network if the primary controller is in add/
remove mode. When the device is removed from the network, it will
NOT revert to factory settings.
There are two ways to add the device to a Z-Wave network.
6.1 Method 1: Standard (Manual)
1. Press Center (confirm) for 10 seconds. The display will show OFF.
2. Press Right (down) 5 times until you see Con on the display.
3. Start the add/remove device process in your primary controller.
4. Start the add/remove mode by pressing Center (confirm) for
approximately 2 seconds.
Adding/removing mode is indicated on the display by rotating
LED segments on the display. This lasts until the timeout occurs
after 90 seconds, or until the module has been added/removed in
the network. Confirmation will show Inc/EcL on the display. Exit
programming mode by choosing ESC in the menu. Your thermostat
is now ready for use with default settings.
NB! When the thermostat is removed from the gateway, the
parameters are not reset. To reset the parameters, see Chapter 7:
”Factory reset”. If adding/removing fails, Err (error) will appear.
Please perform a ”remove device”process and try again. If Err displays
again, please see Chapter 7: “Factory reset”.
6.2 Method 2: SmartStart (Automatic)
SmartStart enabled products may be added to a Z-Wave network
by scanning the Z-Wave QR-Code on the product if your primary
controller supports SmartStart inclusion. No further action is required
and the SmartStart product will be added automatically after being
powered on within range of the primary controller.
The Z-Wave QR-Code locations may be found in Chapter 20
”Z-Wave QR-Code/DSK”.
7. FACTORY RESET
By pressing buttons Right and Center (down and confirm) for 20 seconds, the
thermostat will perform a complete factory reset. The device will display rES for
10 seconds while performing a factory reset. When rES no longer is displayed,
the thermostat has been reset.
NB! Please use this procedure only when the primary controller/
gateway is missing or otherwise inoperable.
7.1 Startup
After powering up the device for the first time, all the parameters will have
default settings.
51.1mm
15.6mm
21.3mm
49.5mm
49.5mm
Made in EU
16A 230V~
50/60HZ
IP21
TF 058
HEATING L
L
N
HEATING N
FLOOR
SENSOR
EXTERNAL
SENSOR
Z-TRM3
MULTIREG® Z-WAVE
Release spring
58.8mm
87mm
1: Left 2: Center 3: Right

br1 The display brightness may be adjusted in this menu.
Con Activation of inclusion/exclusion mode.
dIF Hysteresis.
ALo Setting lowest allowed temperature (limitation).
(Air sensor)
AHI Setting highest allowed temperature (limitation).
(Air sensor)
Flo Setting lowest allowed temperature (limitation).
(Floor sensor)
FHI Setting highest allowed temperature (limitation).
(Floor sensor)
A2L Setting lowest allowed temperature (limitation).
(A2 air sensor)
A2H Setting highest allowed temperature (limitation).
(A2 air sensor)
ESC Escape – exit programming menu.
12. CHOICE OF SENSOR
The thermostat has a range of choices when it comes to sensors.
To access the menu, press Center (confirm) for 10 seconds, then press
Right (down) once. An A will appear on the display. Then press Center
(confirm) again and choose modes while moving up and down with
buttons Left or Right:
F Floor sensor
A Internal sensor
AF Internal sensor + Floor sensor
A2 External room sensor
A2F External room sensor + Floor sensor
When you have chosen sensor mode, press the Center (confirm)
button. If you choose F without having a floor sensor connected, Er4
will be shown in the display. If you choose A2 or A2F and there is no
external sensor installed, Er5 will be displayed on the screen.
NOTE: Wooden floors require that a floor sensor is connected in order
to limit the floor temperature to a maximum of 27°C (in accordance
with specifications from most wooden floor manufacturers).
When using the thermostat is used in (AF or A2F) the floor limiter
FHI is automatically set to 27°C. When using any other sensor type
(A, F or A2F) the max temperatures is default 5°C minimum and 40°C
maximum.
13. SELECTING THE RIGHT OHM VALUE FOR YOUR EXTERNAL
FLOOR SENSOR
The following values are available: NTC type (10, 12, 15, 22, 33 or 47kΩ).
Default 10kΩ. Confirm with the Center (confirm) button. You can not
combine two types of NTC sensors.
14. CALIBRATION
CAr, CAF, CAE – Parameters 10, 11, 12)
Using Floor / External sensor (F, A2 or A2F-mode)
In this mode, you may adjust the displayed temperature. If the
Temperature sensor is not calibrated properly, you can make minor
changes to the temperature readout. You can calibrate the measured
temperature by up to ±6°C.
You may later adjust the temperature recorded by the sensor using in
the menu structure or using parameters.
8. PRINCIPLES OF REGULATION
Using Floor / External sensor (F, A2 or A2F-Mode)
The thermostat uses temperature readings retrieved from the internal
sensor or external wired sensor to regulate heating. When you have
chosen a setpoint temperature, the thermostat will use an internal
hysteresis to regulate the temperature. This hysteresis is adjustable.
See Chapter 5“Installation”.
Using Internal sensor (A-mode/AF mode)
If you have a set point of 20°C, the thermostat will use the full power
until the temperature is 19°C. The thermostat will then begin to
regulate the output from 19°C with a 75% duty cycle until it reaches
19,25°C. When the temperature has reached 19.5°C the thermostat will
use a 50% duty cycle, until it reaches 20°C, then the thermostat turns
off and repeats the process. For example, at a 75% duty cycle it will turn
ON for a total of 90 minutes and OFF for 30 minutes.
9. PROGRAMMING THE THERMOSTAT
To activate the programming mode, press Center (confirm) for 10
seconds. The display will show OFF. You are now in programming
mode. To scroll up and down in the menu, use buttons 1 and 3 (left
and right) to navigate. To enter the submenu, press Center (confirm).
Always confirm your setting by pressing Center (confirm) for 2 seconds.
Sto will appear to indicate saved settings.
10. TEMPERATURE SHOWN IN DISPLAY
By default, the temperature shown on the display is the setpoint. This
may be altered with parameter 13: “Temperature display”. You may
calibrate the sensor values ±4 degrees using parameters 10 to 12.
11. STANDBY AND MAIN SCREEN
When the thermostat remains untouched for a while, it will
automatically revert to the standby screen. The standby screen will by
default show the setpoint temperature. By pressing any button once,
you will see the measured temperature. By pressing the left or right (up
or down) button one more time, you will change the setpoint.
Menu structure
OFF Turns the thermostat off
Sensors:
F Depending on your choice of sensors, the menu will change.
SEn Select the right Ohm value for your external/floor sensor.
NTC type (10, 12, 15, 22, 33 or 47kΩ). Default 10kΩ.
CAE Calibration for external sensor.
CAF Calibration for floor sensor.
CAr Calibration for internal sensor.
50% duty cycle
75% duty cycle
20 min.
30 min. 30 min. 30 min.
20 min.
2 hrs.
2 hrs.
20 min.

SENSORTYPE
CALIBRATION FROM
MENU STRUCTURE PARAMETER
Internal sensor CAr 10
Floor sensor CAF 11
External sensor CAE 12
15. BRIGHTNESS
Use Left and Right (up and down) buttons to adjust the brightness
level from 0 to 9. Confirm with the Center (confirm) button.
16. HYSTERESIS DIF
In this mode, you can make changes to the thermostat hysteresis. You
may change the hysteresis from 0,3°C up to max 3,0°C. Confirm with
the Center (confirm) button. The Default setting is 0,5°C. When using
water based heating, the recommended hysteresis is a minimum of
1,0°C. This only applies when using a floor sensor or an external sensor.
17. MIN/MAX TEMPERATURE SETTINGS
Flo Min Floor temperature
FHI Max Floor temperature
ALo Min Air/room temperature
AHI Max Air/room temperature
Confirm with Center (confirm)
ESC Leaving programming mode.
Confirm with the Center (confirm) button.
18. FAST FUNCTIONS FROM STANDBY / MAIN SCREEN
This is a list of some functions that you may use without entering the
menu structure. From standby modus you may do the following:
18.1 DISPLAY ON/OFF (don/doF)
Activate by pressing the Left and Center (up and confirm) buttons
for 10 seconds. The display light is temporarily activated if one of the
buttons is pushed. In case doF is activated, the screen will be blank
(may be used if installed where people are sensitive to the display
light). When touching the display, the screen lights up.
18.2 CHILD LOCK (LOC)
By pressing the Left and Right (up and down) buttons for 10 seconds,
child lock will be activated, and no changes can be made. Trying to
make changes causes the LOC text to appear on the display.
Child lock is deactivated by pressing Left and Right (up and down)
buttons for 10 seconds. OPn will appear on the display.
19. ERROR CODES
Err Adding fail
See Chapter 6.1 ”Add/Remove”.
Er1 Internal error
Contact your local dealer.
Er2 Z-Wave error
Contact your local dealer.
Er3 Internal error
Contact your local dealer.
Er4 Floor sensor error
You have chosen F, AF or A2F sensor mode without having a
floor sensor connected, or the sensor may be damaged.
Er5 External sensor error
You have chosen A2 or A2F, and there are no external sensors
installed or the sensor may be damaged.
20. QRCODE PLACEMENT DSK
The QR-Code is needed when including a device using S2 security or
SmartStart. The DSK can be found in the QR-Code and is located:
1. On the product.
2. On the Quick Guide manual.
3. On the product box.
21. SECURITY
S2 security enhances Z-Wave Plus with an additional layer of AES
128-bit encryption of the wireless Z-Wave communication to prevent
hacking and man-in-middle attacks on the home network. This device
supports S2 and has a Z-Wave DSK QR-Code label that may be used
when the module is added to the Z-Wave home network. The primary
controller will ask for a 5-digit code, which can be found underneath
the QR-Code. The primary controller will then ask you to confirm the
rest of the code that is contained in the QR-Code.
22. NODE INFORMATION FRAME
The node information frame is the ”business card”of a Z-Wave device.
It contains information about the device type and its technical features.
The add and remove procedure of the device is confirmed by sending
out a node information frame. Besides this, it may be necessary for
certain network operations to send out a node information frame.
23. ASSOCIATIONS
Z-Wave devices interact with other Z-Wave devices. The relationship
between one device controlling another device is called an association.
In order to control a subordinate device, the controlling device needs
to maintain a list of devices that will receive controlling commands.
These lists are called ”Association Groups”. They are always related to
the specific event triggered (e.g., sensor reports). In case the event is
triggered, all devices stored in the respective association group will
receive a joint wireless command.
23.1 Setting and removing associations
Associations may be assigned and removed via Z-Wave commands.
Please refer to your primary controller/Z-Wave gateway for more
information.
23.2 Multichannel support
Heatit Z-TRM3 has support for the Multichannel Command Class. This
allows the thermostat to be perceived as many devices by the primary
controller, where each of the devices has association groups in order to
send information to other Z-Wave devices. See the chapter concerning
”Association Groups”for more information. Commands sent to each
logical device will be interpreted according to the description in the
section ”Supporting Command Classes”.
23.3 No Multichannel support
If the primary controller or the Z-Wave devices to be associated with
Heatit Z-TRM3 do not support the Multichannel Command Class
(Multichannel encapsulation), only the association groups in the root
device are accessible. This device contains 5 association groups.
See Chapter 23 concerning ”Association Groups”for more information.
The root device is the actual thermostat device.

23.4 Association Groups
With Multichannel support:
THERMOSTAT DEVICE 1 THE MAIN THERMOSTAT DEVICE
Group 1 Lifeline. (Normally used by the Z-Wave Controller) Sends:
-Thermostat Setpoint Reports
-Thermostat Mode Reports
-Thermostat Operating State
-Meter Reports
Max. nodes in group: 5
Group 2 Send Binary Switch Set commands representing the
status of the internal relay.
Max. nodes in group: 5
MULTILEVEL SENSOR DEVICE 2 DEVICE FOR INTERNAL ROOM TEMPERATURE SENSOR
Group 1 Lifeline
Send Multilevel Sensor Reports.
Max. nodes in group: 5
Group 2 Send Multilevel Sensor Reports.
Max. nodes in group: 5
MULTILEVEL SENSOR DEVICE 3 DEVICE FOR EXTERNAL ROOM TEMPERATURE SENSOR
Group 1 Lifeline
Send Multilevel Sensor Reports.
Max. nodes in group: 5
Group 2 Send Multilevel Sensor Reports.
Max. nodes in group: 5
MULTILEVEL SENSOR DEVICE 4 DEVICE FOR FLOOR SENSOR
Group 1 Lifeline
Send Multilevel Sensor Reports.
Max. nodes in group: 5
Group 2 Send Multilevel Sensor Reports.
Max. nodes in group: 5
Without Multichannel support:
THERMOSTAT DEVICE 1 THE MAIN THERMOSTAT DEVICE
Group 1 Lifeline. (Normally used by the Z-Wave Controller) Sends:
- Device Reset Notifications.
- Thermostat Setpoint Reports
- Thermostat Mode Reports
- Thermostat Operating State
- Basic Reports
- Meter Reports
Max. nodes in group: 5
Group 2 Send Binary Switch Set commands representing the
status of the internal relay.
Max. nodes in group: 5
Group 3 Internal sensor
Send Multilevel Sensor Reports for internal temperature
sensor.
Max. nodes in group: 5
Group 4 External sensor
Send Multilevel Sensor Reports for external room
temperature sensor.
Max. nodes in group: 5
Group 5 Floor sensor
Send Multilevel Sensor Reports for floor sensor.
Max. nodes in group: 5
24. CONFIGURATION PARAMETERS
Z-Wave products are supposed to work out of the box after inclusion.
Some device configuration may, however, alter the functionality to
better serve user needs or unlock further enhanced features. All of
the parameters listed in the following table do not feature altering
capabilities, advanced or read only flag.
NO
#
PARA
SIZE
(BYTE) NAME
SHORT
DESCRIPTION /
COMMENT VALUE
DESCRIPTION
OFVALUE
1 1 Operation
mode
Device turned on
or off
0Off
1 Heating mode
2 2 Sensor
mode
Chooses which
sensor type to use
with thermostat
0 F-mode, floor sensor mode
1 A-mode, internal room
sensor mode (Default)
2 AF-mode, internal room
sensor with floor limitation
3 A2-mode, external room
sensor mode
4 A2F-mode, external sensor
with floor limitation
3 1 Floor
sensor
type
NTC sensor value 0 10K NTC (Default)
1 12K NTC
2 15K NTC
3 22K NTC
4 33K NTC
5 47K NTC
4 1 Temp.
control
hysteresis
(diF)
Adjusts the
hysteresis.
3-30 0.3°C to 3.0°C.
Default is 5 (0.5°C)
5 2 Floor min.
temp. limit
(Flo)
Chooses min. floor
temp. before
engaging
thermostat
50-400 5.0°C to 40.0°C.
Default is 50 (5.0°C)
6 2 Floor max.
temp. limit
(FHi)
Chooses max. floor
temp. before
disengaging
thermostat
50-400 5.0°C to 40.0°C.
Default is 400 (40.0°C)
7 2 Air min.
temp. limit
(ALo)
Chooses min.
air temp. before
engaging
thermostat
50-400 5.0°C to 40.0°C.
Default is 50 (5.0°C)
8 2 Air max.
temp. limit
(AHi)
Chooses max. air
temp. before
disengaging
thermostat
50-400 5.0°C to 40.0°C.
Default is 400 (40.0°C)
9 2 Heating
mode
setpoint
Defines the
thermostat setpoint
50-400 5.0°C to 40.0°C.
Default is 210 (21.0°C)
10 1 Room
sensor
calibration
(A)
Calibrates room
sensor to increase
temperature
accuracy
-60 to 60 -6.0°C to 6.0°C.
Default is 0 (0.0°C).
NB! To set a negative value,
use 256 and subtract the
desired value.
11 1 Floor
sensor
calibration
Calibrates floor
sensor to increase
temperature
accuracy
-60 to 60 -6.0°C to 6.0°C.
Default is 0 (0.0°C).
NB! To set a negative value,
use 256 and subtract the
desired value.
12 1 External
sensor
calibration
Calibrates external
sensor to increase
temperature
accuracy
-60 to 60 -6.0°C to 6.0°C.
Default is 0 (0.0°C).
NB! To set a negative value,
use 256 and subtract the
desired value.
13 1 Temp.
display
Selects which
temperature is
shown on the
display. Refer to
Chapter 11 ”Standby
and main screen”.
0 Display setpoint temperature
(Default)
1 Display measured
temperature
14 1 Button
brightness-
dimmed
state
Configures the
brightness of the
buttons in dimmed
state
0-100 0 to 100%
(Default 50%)
15 1 Button
brightness-
active
state
Configures the
brightness of the
buttons in active
state
0-100 0 to 100%
(Default 100%)

NO
#
PARA
SIZE
(BYTE) NAME
SHORT
DESCRIPTION /
COMMENT VALUE
DESCRIPTION
OFVALUE
16 1 Display
brightness-
dimmed
state
Configures the
brightness of the
display in dimmed
state
0-100 0 to 100%
(Default 50%)
17 1 Display
brightness-
active
state
Configures the
brightness of the
display in active
state
0-100 0 to 100%
(Default 100%)
18 2 Temp.
report
interval
Time interval
between
consecutive temp.
reports. Temp.
reports can also be
sent as a result of
polling.
30-32767 30 to 32767 seconds.
Default is 60 seconds
19 1 Temp.
report
hysteresis
The temperature
report will be sent if
there is a difference
in temperature value
from the previous
value reported,
defined in this pa-
rameter (hysteresis).
Temperature reports
can also be sent as a
result of polling.
1-100 0.1°C to 10.0°C.
Default is 10 (1.0°C)
20 2 Meter
report
interval
Time interval
between
consecutive
meter reports.
Meter reports can
also be sent as a
result of polling.
30-32767 30 to 32767 seconds.
Default is 90 seconds
21 1 Meter
report data
value
Delta value in kWh
between
consecutive
meter reports. Meter
reports can also be
sent as a result of
polling.
0 Reporting meter based on
change is disabled
0-255 A delta value
of 0 to 25.5 kWh will result in
a metering report.
Default is 10 (1.0 kWh)
25. COMMAND CLASS SPECIFICATIONS
The following table lists all Command Classes supported by the Z-Wave
device. The device supports both S0, S2 Authenticated security and
S2 Unauthenticated security.
INSECURE
INCLUSION
INSECURE
ON SECURE
INCLUSION
SECURE ON
SECURE
INCLUSION
Z-Wave Plus Information v2 Yes Yes
Association v2 Yes Yes
Association Group Information v1 Yes Yes
Multilevel Sensor v5 Yes Yes
Multichannel Association v3 Yes Yes
Multichannel v4 Yes Yes
Transport Service v2 Yes Yes
Version v3 Yes Yes
Manufacturer Specific v2 Yes Yes
Device Reset Locally v1 Yes Yes
Power level v1 Yes Yes
Security v1 Yes Yes
Security 2 v1 Yes Yes
Supervision v1 Yes Yes
Configuration v3 Yes Yes
Firmware Update v5 Yes Yes
Thermostat Setpoint v3 Yes Yes
Thermostat Mode v3 Yes Yes
Thermostat Operating State v1 Yes Yes
Basic v2 Yes Yes
Meter v3 Yes Yes
Besides the mandatory command classes, Heatit Z-TRM3 has support
for the following command classes:
Basic command class
A Basic command to the root endpoint or endpoint 1 will change the
Thermostat Mode. Uses the following values:
0x00 = OFF (thermostat regulation is deactivated)
0x01 = Heating Mode (thermostat regulation is active)
Binary Switch Command Class
Sends Binary Switch commands to other devices when the internal
relay is switched. It used to control other slave relay devices. Uses the
following values:
0x00 = OFF
0xFF = ON
Thermostat Setpoint Command Class
When a Thermostat Setpoint Set command is received by the root
device, it sets the chosen setpoint for heating mode.
Thermostat Mode
It is possible to change the operating mode of the thermostat by
sending a Thermostat Mode Set command. The accessible operating
modes are:
0x00 = OFF (thermostat regulation is deactivated)
0x01= Heating Mode (thermostat regulation is active)
Thermostat Operating State
The thermostat reports the operating state of the internal relay using
this command class.
0x00 = Idle (relay is turned OFF)
0x01= Heating (relay is turned ON)
Meter Command Class
The thermostat supports Meter Command Class Get, and the
thermostat will only respond on supported electric meter scales: kWh
(accumulated), Watt (instant) and Volt (instant). The thermostat will
report when asked:
Rate import: Import (0x01)
Meter type: Electric meter (0x01)
Precision: 1 decimal (0x01)
PRECISION (VALUE) SCALE SUPPORTED (VALUE) SIZE
1 decimal (0x01) kWh (0x01) 4
2 decimals (0x01) W (0x02) 4
1 decimal V (0x04) 2
THERMOSTAT DEVICE 1
Supported Command Classes Association (version 2)
Z-Wave Plus Information (version 2)
Association (version 2)
Association Group Information (version 3)
Multichannel Association (version 3)
Supervision (version 1)
Security (version 1)
Security 2 (version 1)
Thermostat Setpoint (version 3)
Thermostat Mode (version 3)
Thermostat Operating State (version 1)

Heatit Controls AB l Läkarvägen 4, 454 31 BRASTAD, SWEDEN
Phone: [phone] l [e-mail] – www.heatit.com
Heatit Controls AB can not be held liable for typographical errors, other errors or omittances in our information.
Product specifications may change without further notice. All electrical installations must be carried out by a licensed
electrician. The product must be installed in accordance with national building codes and our installers manual.
Controlled Command Classes
Switch Binary (version 1)
Meter (version 3)
MULTILEVEL SENSOR DEVICE 2
Supported Command Classes
Z-Wave Plus Information (version 2)
Association (version 2)
Association Group Information (version 3)
Multichannel Association (version 3)
Supervision (version 1)
Security (version 1)
Security 2 (version 1)
Multilevel Sensor (version 5)
Controlled Command Classes
Multilevel Sensor (version 5)
MULTILEVEL SENSOR DEVICE 3
Supported Command Classes
Z-Wave Plus Information (version 2)
Association (version 2)
Association Group Information (version 3)
Multichannel Association (version 3)
Supervision (version 1)
Security (version 1)
Security 2 (version 1)
Multilevel Sensor (version 5)
Controlled Command Classes
Multilevel Sensor (version 5)
MULTILEVEL SENSOR DEVICE 4
Supported Command Classes
Z-Wave Plus Information (version 2)
Association (version 2)
Association Group Information (version 3)
Multichannel Association (version 3)
Supervision (version 1)
Security (version 1)
Security 2 (version 1)
Multilevel Sensor (version 5)
Controlled Command Classes
Multilevel Sensor (version 5)
PRODUCT INFO Heatit Z-TRM3
FUNCTIONS
• Floor sensor • Firmware update (OTA)
• Internal room sensor • Power metering
• External room sensor (wired) • Relay status LED
• Temperature limiter • Single pole switch
• SmartStart • Lock mode/child lock
• Weekly program/setback via
gateway)
• Calibration
• 5 associations
• Temperature shown in gateway
• Supports encryption mode: S0, S2 Authenticated Class,
S2 Unauthenticated Class
This product is a security-enabled Z-Wave Plus product with
encryption. The product must be used with a security-enabled
Z-Wave Controller in order to fully utilize the product.
TECHNICAL DATA
Protocol Z-Wave
Chip Z-Wave 500 chip
Rated voltage 230VAC 50/60Hz
Max load 3600W (resistive loads only)
Use contactor for loads higher than 13A
Max current 16A
Power consumption <2.0W
Ambient temperature 2°C to 40°C (during operation)
Temperature range 5°C to 40°C
Hysteresis 0.3°C to 3.0°C (default 0.5°C)
Compatible with NTC
sensors with values 10, 12, 15, 22, 33 and 47 kΩ @ 25°C
IP Code IP 21
Approvals Z-Wave Plus, CE
EN 60730-1, EN 60730-2-9, EMC 2014/30/EU, RoHS 2011/65/EU,
LVD 2014/35/EU
Approved for use in bathrooms.
TERMINAL
Use 1.5mm² or 2.5mm² according to load.
MAINTENANCE
The product is maintenance-free, but must not be covered.
ART. NO. PRODUCT COLOR FREQUENCY
54 305 99 Heatit Z-TRM3 thermostat White RAL9003 EU 868.4MHz
54 305 98 Heatit Z-TRM3 thermostat Black RAL 9011 EU 868.4MHz
54 304 46 Plastic kit for Heatit (front and frame) Black RAL 9011
99 305 60 Heatit Z-TRM3 thermostat White RAL 9003 RU 869.0MHz
99 305 51 Heatit Z-TRM3 thermostat White RAL 9003 AUS 921.4MHz
The product is also available in other Z-Wave frequency versions on request.