HELTUN HEATING THERMOSTAT
HE-ZW-THERM-FL2 USER MANUAL V1.0
OVERVIEW
This is a programmable electronic room heating thermostat for flush mounting into most
standard wall boxes. It is designed to maintain a constant ambient temperature, the criteria of
which can be simultaneously either floor, room or both temperature sensors.
It is recommended for the control of electric heating devices (radiators, convectors, electric
fireplace), boilers or electric under floor heating. The heating element is directly controlled by
a single pole switch. The maximum loading for the thermostat is 16A over which a contactor
will be required. (16A – 3600W @ 220V/240V.)
The thermostat has an LCD screen, six sensitive capacitive touch control buttons and two
temperature sensors (external NTC floor sensor and a built-in room air temperature sensor).
The thermostat is also equipped with built-in humidity, illumination and energy consumption
sensors.
The thermostat has an integrated 5th generation secure Z-Wave module which allows to use
the device with Z-Wave Home Automation systems such as Fibaro, Vera, Zipato,
SmartThings, Z-Way, HomeSeer and others. The thermostat can be associated and control
up to 10 Z-Wave devices (relays, switchers etc.)
One of six operation modes can be selected either manually or via the Z-Wave controller /
gateway. The 6 operating modes are: COM - most comfortable (full power) mode, TIME –
control the temperature by day time, DRY - floor quick drying mode, ECO – energy saving
mode, VAC – vacation mode and MAN - manual control mode. The thermostat protects the
floor from overheating by automatically switching off the load when the temperature reaches
a maximum of 40°C.
The LCD screen with white icons has a user-friendly interface, displaying:
floor temperature, air temperature, humidity level, user set temperature, operating mode,
time, weekday, relay and Z-Wave network statuses.
TECHNICAL SPECIFICATIONS
Front frame dimensions: 89х89х9mm
Back dimensions: 53х53х28mm
Material: Flame retardant plastic, tempered glass
4 frame colors: Silver, Chrome, Black, White
6 glass colors: White, Black, Yellow, Green, Red, Blue
LCD: 73x42mm, black with white icons
6 sensitive capacitive touch buttons
Operating temperature: 0°С – +50°С
Power supply: 100V – 230VAC, 50Hz/60Hz
Power consumption: 1.5W
Maximum resistive load: 16А, 3600W @220V
Relay life time: 100.000 switches
Internal ambient brightness sensor
Internal temperature sensor
Measurement range: -30°C to +80°C
Accuracy: ±0.5°C
Internal humidity sensor
Measurement range: 0 – 80%RH
Accuracy: ±3.0%RH
External floor temperature sensor
NTC 10kOhm
Measurement range: -30°C to +80°C
Accuracy: ±0.5°C
Energy consumption meter
IP class: IP21
Z-Wave Plus SDK: V6.71
FUNCTIONAL SPECIFICATIONS
Inclusion/exclusion into/from z-wave network
Non Secure
S0 secure
S2 unauthorized, S2 authorized
Association control of 10 devices from network
6 operation modes with individual temperature set point:
COM, ECO, VAC, DRY, TIME, MANUAL
4 time schedule for 7 days of the week:
Morning, Day, Evening, Night
Choosing a temperature sensor for operation:
Floor temperature only
Air temperature only
Floor + Air temperature
Power regulator (Automatic ON/OFF timer)
Usable with different NTC-sensor (1kOhm - 100kOhm)
Temperature sensors calibration
Temperature set intervals: 4.0°C to 37.0°C
Temperature limiter: 40.0°C
Choosing a temperature hysteresis: 0.1°C - 9.5°C
Choosing a degree (Celsius / Fahrenheit)
Adjustable LCD brightness: Auto or Manual
LCD standby mode
Child lock (touch buttons lock)
Consumption meter
Factory reset
OTA function (Firmware update over the air).
INSTALLATION
We recommend the installation conforms to your local regulations and is undertaken by a
qualified electrical engineer. Positioning of the thermostat is of the utmost importance and
must be away from sunlight and sources of direct heat. We recommend installation about 1.5
metres above the floor.
Electrical power must be switched off during all aspects of installation.
1. Remove the front cover and back plate of the thermostat from the main box.
2. ENSURING THE POWER IS OFF and using a small cross head (Phillips) screwdriver
connect the wires to the thermostat terminals:
IN: Power connection
HEATING: Heating element connection
3. If using the thermostat for floor heating, connect the NTC temperature sensor wires to
terminals NTC. 10 kΩ NTC sensor is included in the box but any NTC sensor can be used. If
another sensor other than 10 kΩ NTC is used then ensure changing the sensor value in the
thermostat settings (Parameter 17 - FSr).
4. If using an external device for the thermostat modes control, connect its dry contacts to
terminals EXT.
5. Making sure “TOP” is uppermost secure the back plate into the wall mounting box using
the screws provided. Install the thermostat body by carefully aligning the top snap
connectors and then pushing on the front cover with gentle pressure ensuring it snaps firmly
into position all the way round.
6. Switch On the main power and the thermostat will start up showing the original default
factory settings.
7. Remove protective film by pulling the tab in the top right hand side.
DISASSEMBLY
1. ENSURE POWER IS SWITCHED OFF AND SCREEN IS BLANK.
2. To remove thermostat body grasp firmly and pull back from the bottom until all tabs
disconnect.
3. Remove screws from back plate and disconnect the wires.
TOUCH PANEL OPERATION
The touch panel has six touch buttons which require minimal pressure to operate.
Plus
Minus
Time
Settings
Manual Heating
Mode
“ “ key will increase set point temperature by 0.5°C (or 1°F), and “ “ key will decrease set
point temperature by 0.5°C (or 1°F). The set point temperature is displayed in the bottom left
corner of the display as “SET TEMP”.
Note:
The minimum set point is 4.0°C (39°F) and the maximum set point is 37.0°C (99°F).
The thermostat has two working modes: HEATING and IDLE. In HEATING mode the
operating state icon will appear on the right bottom corner of the display, and the icon will
disappear in the IDLE mode.
OPERATION MODE
Current mode is displayed in the middle right line of display under “HEATING MODE” field.
The thermostat has 6 operating modes:
COM – general comfort (full power) mode.
TIME – time mode allows to set a different temperature for different periods of the day
DRY – fast floor drying.
ECO – economy (power efficient / energy saving) mode.
VAC – vacation (away) mode
MAN – manual mode.
Change the mode by touching the MODE key and reselecting as above.
Each operating modes has an individual temperature set points. The thermostat will operate
automatically depending on the current SET TEMP point. To change the set point values
choose the desired mode and press “
+
” key to increase or press “
–
” key to reduce the value.
Alternatively control from your Z-wave gateway.
MAN MODE
In this mode the thermostat logic is disabled and the heating state can be switched On/Off
manually by pressing the key.
Note: if the MAN mode is enabled the SET POINT will indicate OFF.
COM (comfort) MODE
This mode is recommended for normal comfort.
Factory default set point is 25.0°C (77°F)
DRY MODE
This mode is recommended for use if a high floor temperature is required for a limited period
of time for example after floor washing. By choosing DRY mode the thermostat will increase
the temperature to the selected set point for a limited time specified in the “Dry Time”
parameter. The time range of 5-90 minutes can be selected. After the drying time the
thermostat will automatically change back to the TIME mode.
To change the Dry Time, go to “Settings Mode” by pressing the key for 3 seconds. Use the
keys or to scroll the menu to Parameter 07, then use keys “
+
” and “
–
” to increase or
reduce the time. The value of Dry Time is in minutes.
Factory default Dry time is 30 min.
Factory default set point is 30.0°C (86°F)
ECO (energy saving) MODE
This mode can be used if lower temperature and energy consumption is required. It can also
be used at night or when absent from all or part of the property for a length of time.
Factory default set point is 20.0°C (68°F)
VAC (vacation) MODE
This mode is recommended for use when absent.
Factory default set point is 15.0°C (59°F)
Note:
The minimum set point for each mode is 4.0°C (39°F) and the maximum set point is
37.0°C (99°F).
TIME MODE
Adjust home temperature according to personal habits by reducing it whilst away from home
and increasing in the evenings and early mornings.
The thermostat can be set individually for morning, day, evening and night. For example, it
can be assigned for Morning period start at 7.00, then Day starting at 9.00 (when absent for
work etc.), then Evening starting at 18:00 (half an hour before occupants return). The Night
regime then begins at 23.30 (bedtime).
Separate temperature settings can be made for all 4 periods for every day of the week.
To set up the time and temperature for each period go to the Time menu by pressing and
holding the key for 3 seconds. The display will show the Time menu.
To set up the start time for each period choose the period by pressing the key than adjust
the time by pressing the key for increase or MODE key for decrease. Do this action for all
4 periods: Morning, Day, Evening & Night.
To set up the temperature choose the week day by pressing the key, choose the period by
pressing key and adjust the temperature by pressing “+” or “–“ keys. Do this action for
every day of the week.
Note:
TIME mode works only in case of the correct time being set. The time can be
automatically corrected by polling from your gateway if the Parameter 8 value is 1 or set
manually in Parameters 10, 11 and 12 in the settings menu.
Note:
In the TIME mode the SET POINT of the thermostat will be automatically changed
depending on the period. The SET POINT can be adjusted manually out of the TIME menu
but it will be effective only until the next period.
SETTINGS MODE
To activate the settings mode, press and hold the key for 3 seconds. The display will show
the settings menu. In the top left corner is the parameter number, in the left bottom corner is
the parameter display indication (the parameter name) and in the right top corner is the
parameter value.
To scroll the menu navigation just press the key to go up and the MODE key to go down.
To change the parameters value press the “+” or “-” keys.
Param
number
Param
value
Param
number
increase
Param
number
reduce
Param
Value
Reduce
Param
Value
Increase
Param
name
To leave the Settings mode to go to the main display mode press and hold the key for 3
seconds.
The thermostat will automatically leave to the display mode if no action is detected for 10
seconds.
PARAMETERS LIST
Parameter 01 (dEg) – Degree mode
Celsius (°C) or Fahrenheit (°F) degree mode can be choosen. Floor and air temperature, as
well as set point and all parameters will be indicated in the chosen mode.
Factory default value is Celsius (°C).
Parameter 02 (In1) – External input mode
The thermostat can be connected to an external device (like security system) dry output
contacts and control the thermostat operating modes depending on the contacts state.
If parameter value is 0 no action will be take (the input state is ignored by the thermostat
logic). If parameter value is 1 the thermostat will be switched to the operating mode selected
in Parameter 3 if the output was short-circuited. The thermostat will go back to previous mode
as soon as the input is open.
I
f parameter value is 2 the thermostat will be switched to the
operating mode selected in Parameter 3 if the output was short-circuited. But the thermostat
will not undertake any action if the input is open again.
Factory default value is 1.
Parameter 03 (In2) – Operating mode for external input action
This parameter allows selecting which operating mode the thermostat should go to if the
external input is short-circuited. 1=COM, 2=TIME, 3=DRY, 4=ECO, 5=VAC, 6=MAN.
Note:
When thermostat goes to MAN mode it will be in IDLE state till HEATING key is not
pressed manually.
Factory default value is 2
Parameter 04 (SEn) – Source sensor
The thermostat has seven regulation modes based on different sensors values. Use keys “+”
and “-” to choose follow modes:
1) A – Air sensor
2) AF – Air Floor sensor
3) F – Floor sensor
4) FA – Floor Air sensor
5) P – Power regulator
6) PA – Power reg Air sensor
7) PF – Power reg Floor sensor
1) A – Air sensor: Regulation (heating control) is based on the SET POINT applied to the
internal room air temperature sensor.
2) AF – Air sensor plus floor sensor: Regulation is based on SET POINT applied to the
internal room temperature sensor but also controlled by the floor temperature sensor
ensuring that the floor temperature remains within the set limits. The lower floor temperature
limit is specified in Param 15 - FtL and the high temperature limit in Param 16 – FtH.
3) F – Floor sensor: Regulation is based on the SET POINT applied to the external floor
temperature sensor.
4) FA – Floor sensor plus air sensor: Regulation is based on SET POINT applied to the
external floor sensor but is also controlled by the internal air temperature sensor ensuring
that the room temperature remains within the set limits. The lower air temperature limit is
specified in Param 13 - AtL and the higher temperature limit in Param 14 – AtH.
5) Power regulator: Regulation is based on the time settings for heating which will be ON
during the time in Param 05 – POn and then OFF during the time in Param 06 - POf. This
cycle will be repeated constantly.
Parameter
Number
Default
Value
Available
Values
Display
Indication
Description
01
dEg
Degree Mode
°C, °F
°C
02
In1
EXT input mode
0, 1, 2
1
03
In2
Mode number for EXT input action
1, 2, 3, 4, 5, 6
2
04
Sen
Source Sensor
A, AF, F, FA,
P, PA, PF
F
05
Pon
Power Regulation ON time, min
10 - 90
15
06
POF
Power Regulation OFF time, min
10 - 90
15
07
dry
Dry Time, min
5 - 90
30
08
tCr
Time correction by controller
0, 1
1
09
tFo
Time format
0, 1
0
10
dAy
Week Day
1 - 7
1
11
tIH
Time Hour
0 - 23
0
12
tIL
Time Minute
0 - 59
0
14
AtH
Air Temperature Maximum, °C / °F
5.0-37.0 in °C
41 - 99 in °F
27 / 81
13
AtL
Air Temperature Minimum, °C / °F
4.0-36.0 in °C
39 - 97 in °F
21 / 70
15
FtL
Floor Temperature Minimum, °C / °F
4.0-36.0 in °C
39 - 97 in °F
18 / 64
16
FtH
Floor Temperature Maximum, °C / °F
5.0-37.0 in °C
41 - 99 in °F
32 / 90
17
Fsr
Floor Sensor Resistance, kΩ
1 - 100
10
19
Ftc
Floor Temperature Calibration, °C / °F
-9.5-9.5 in °C
-17 - 17 in °F
0 / 0
18
Atc
Air Temperature Calibration, °C / °F
-9.5-9.5 in °C
-17 - 17 in °F
0 / 0
20
HYS
Temperature Hysteresis, °C / °F
0.1-9.5 in °C
0.1 - 17 in °F
0.5 /
0.9
21
dIF
Temperature difference to send to
controller, °C / °F
0.1-1.0 in °C
0.2 - 1.8 in °F
0.2 /
0.3
22
brH
Active display brightness level
1 - 4, but
>=Param23
4
23
brL
Inactive display brightness level
1 - 4, but
<=Param22
3
24
Abr
Auto LCD brightness control
0, 1
1
25
Ab1
Auto brightness level 1 max lumens
0 - 5000
30
26
Ab2
Auto brightness level 2 max lumens
0 - 5000
200
27
Ab3
Auto brightness level 3 max lumens
0 - 5000
3000
28
bSA
Basic Set Action
1, 2, 3, 4, 5, 6
6
29
nEt
Inclusion / Exclusion Mode
Inc, Ecl
Ecl
30
Prr
Power Meter total value & reset
0-999kwh
0
