Herz F799 User manual

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HERZ Wireless control system
Important
Before starting work, the installer should carefully read this Installation & Operation Manual and make sure all instructions
contained therein are understood and observed. The thermostat should be mounted, operated and maintained by
specially trained personnel only. Personnel in the course of training are only allowed to handle the product under the
supervision of an experienced fitter. Subject to observation of the above terms, the manufacture shall assume the
liability for the equipment as provided by legal requirements. All instructions in this Installation & Operation Manual
should be observed when working with the controller. Any other application shall not comply with the regulations. The
manufacturer shall not be liable in case of an incompetent use of the control. Any modifications and amendments are
not allowed for safety reasons. The maintenance has to be performed by service companies or the manufacturer only.
The functionality of the controller depends on the model and equipment. This installation leaflet is part of the product
and has to be obtained.
Application
• The thermostats are developed to control and manage all type of electrical heating systems or materials.
• The controllers are designed for the use in residential rooms, office spaces and industrial facilities.
• Verify that the installation complies with existing regulations, to ensure the proper use of the product.
Safety instructions
The thermostats have to be installed in dry places, as they are not resistant to spray or dripping water. A confusion of
the 230 V connections leads to an increased lethal risk and can damage the thermostat device as well as other devices.
Room temperature regulation and radio receiver
datasheet Roomtemperature thermostat, Issue 0419
Table of content
• Digital wireless control system with 7 day timer (3 F799 06).................................................................................2
• Analogue wireless control system (3 F799 04)...................................................................................................19
• Receiver (for 3F799 06 und 3F799 04)............................................................................................................21

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Describtion of the thermostats
The electronic programmable thermostat with LCD display is specially designed to control different types of heating
systems. It was designed to optimize your energy consumption and heating comfort:
Advantages of the control system:
• modern design and material
• bidirectional wireless communication 868 MHz
• function „easy creation of programms“
• weekprogramming in steps of 30 minutes
• function „temporary deactivation of the programm“
• Anti freeze function
• Holiday or visit function
• EEPROM non volatile memory
• 2 AAA batteries (up to 2 years operating time)
• 2 parameter menus (user- and installer )
In option
External sensor with several possibilities of regulation. (Floor, combined…)
HERZ Digital wireless control system with 7 day timer
datasheet 3 F799 06, Issue 0419
Left Navigation key
Right Navigation key
Escape key
Edition key
Minus key (-)
Validation key (OK)
Plus Key (+)
Dimensions in mm
83 mm
80 mm
27 mm

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LED & Display
1. Current day of the week
2. Operating mode menu (active mode is framed).
3. Program number or parameter number if “4” is displayed.
4. Installation Parameter menu.
5. RF transmission logo.
6. Type of sensor used and temperature displayed
• Regulation => Internal or external sensor.
• Regulation => Floor sensor. (Only available with receiver)
• Regulation => Internal sensor with floor limitation. (Only available with receiver)
7. Heating demand indication.
8. Low batteries indicator.
9. °C or °F unit indicator
10. Setting or measured temperature if “5” is displayed. Parameter value if “4” is displayed.
11. Temporary override function activated.
12. Time or parameter title if “4” is displayed.
13. Program of the current day (the current time bar blinks).
14. Pictogram for program creation, program state in normal operating mode.
15. Key lock indicator.
Red fix: Heating demand (when backlight is lit up)
Green flash: your validation is required
Red flash: Error on sensor or batteries
Status of the LED

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Technical specifications
Operating temperature
Shipping and storage temperature
0 °C - 40 °C
- 10 °C to + 50 °C
Electrical Protection
Installation category
Pollution Degree
IP30
Class II
2
Temperature precision 0,1 °C
Setting temperature range
Comfort, Reduced
Holiday (Antifreeze)
Timer
5 °C to 37 °C
by 0,5 K steps
10,0 °C (adjustable)
5 °C to 37 °C
Regulation characteristics Proportional Band (PWM 2 K/10min) or Hysteresis
0,5 K
Power supply
Operating life
2x AAA LR03 1,5V
Alkalie ~ 2 years
Sensing elements: Internal & External (option) NTC 10 kΩ at 25 °C
Radio frequency 868 MHz, <10 mW
Softwareversion Showed in parameter menu. VERS xxx
Compatible receivers
Flush type
Wall type
Plug type
Norms and homologation:
Your thermostat has been designed in comformity
with the following standards or other normative
documents:
EN 60730-1 : 2003
EN 61000-6-1 : 2002
EN 61000-6-3 : 2004
EN 61000-4-2 : 2001
EN300220-1/2
EN301489-1/3
R&TTE 1999/5/EC
Low voltage
2006/95/CE
EMC 2004/108/CE

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First installation
This section will guide you through the set up of your thermostat for the first time.
Batteries installation
• Open the two side covers and insert the 2 AAA alkaline supplied batteries (or remove the small protection
sticker, if the batteries are already installed in the compartment)
• Close the two side covers.
• Now your thermostat will propose you to adjust the current time and date.
Time and date adjustment
Each time a value flashes, you can adjust it with the (-) and (+) keys, once the value is chosen, confirm it with the (OK)
key. The thermostat will jump automatically to the next value.
Note: You can always come back to the previous value by pressing the escape key ( ).
List of the order time and date adjustments
Time and day:
Adjustment of the hours
Adjustment of the minutes
Adjustment of the day (1 = Monday)
Date:
Adjustment of the day number
Adjustment of the month number (01 to 12)
Adjustment of the year
When the message “Save” and the blinking green LED appears, press (OK) to confirm the adjusted time and date.
You can always reach the time and date adjustment, by pressing and maintaining the edition key during 2 seconds
in normal operating modes.
RF installation
First of all to configure your thermostat with the receiver, you must put your receiver in the « rF init ». mode. (Please refer
to the receiver leaflet for this, only the RF receiver of the same range are compatibles). Now on the thermostat press and
maintain the edition key ( ) during 5s, then the parameter « rF ini » must be displayed.
The thermostat will send now the radio configuration signal to the receiver. After few seconds the thermostat and
receiver should exit by the « rF ini » mode, this is the normal procedure to confirm a correct pairing.

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Now you can check the RF distance, go to the room which must be regulated. Put your thermostat on the final position
(On the wall or table...), then put the thermostat in the comfort mode (setting temperature position 37 °C). Close the
door and go to the receiver to check if the new status of the thermostat has received. (The heating is generally showed
by a Red LED on the receiver). Now return to the thermostat and switch it off.
Check the receiver again, if it’s also switched off (The red LED must be turned off).
If the RF signal is received correctly, adjust your setting temperature as you want. If the RF signal isn’t received correctly,
check the installation (Receiver position, distance...) or restart the « rF ini » rules to be sure. To make the installation
easier, it will be better to have the thermostat closer to the receiver during the configuration mode. (A minimal distance
of > 1meter must be kept).
Case of central: The link is done with central.
Starting
The thermostat is now ready to work. The default working mode is automaticly programed with the standard built-in
programm „P1“ .
• Monday to Friday
• Saturday to Sunday
Note: You can customise your program as you want. See the next part “Working mode definition” for more
explanations.
Note: At any time, when the backlight is extinct, press the (OK) key to lit-up the backlight and then press
another time the (OK) key to show the current setting temperature.
actual value
actual status
Program

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Working mode defintion
Following your installation (Unit installed), your thermostat will offer different possibilities. Following the model
of the receiver linked with your thermostat, you will have also different possibilities for the working and
regulation mode (i.e. Floor regulation, air regulation combined with floor limitation, Pilot wire function…)
• Autonomous working
Your thermostat has several working modes to allow you, to adjust your unit according to your life habits.
• Changing the working mode
Open the small center cover to have access to the navigation keys (<) or (>). You can now press these keys to display
the working mode line. Move the frame cursor on the desired working mode and press (OK) to enter in the operating
mode you have chosen.
Manual Mode - Comfort
Manual working mode, the comfort setting temperature will be followed all the time. By pressing (-) or (+) keys, the
comfort setting temperature starts to blink and can be adjusted.
Manual Mode - Eco
Manual working mode, the reduced setting temperature will be followed at all time. By pressing the (-) or (+)
key, the reduced setting temperature starts to blink and can be adjusted.
OFF Mode
Use this mode, if you need to switch off your installation.
Be careful: In this mode your installation can freeze.
At any time, when the display is off, press on the (Ok) key to display a few seconds the current temperature and time.
To restart your installation, use the navigation keys (<) or (>).
Automatic mode
In this mode the thermostat will follow the chosen program (Built-in or customized) according to the current time,
the comfort and the reduced setting temperatures. You can easily override temporarily the current program by pressing
(-) or (+). The thermostat jumps to the timer mode in which you select a setpoint and a time. The thermostat returns
automatically to the automatic mode at the end of the time.

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HERZ Wireless control system
When you enter in the program mode, the first operation is to chose the program number with the (-) or (+) key. You can
choose between a built-in program from P1 to P9 or a user program from U1 to U4.
If you choose a built-in program between P1 to P9, you can choose between the following program.
P1: Morning, Evening & Weekend
P2: Morning, Midday, Evening & Weekend
P3: Day & Weekend
P4: Evening & Weekend
P5: Morning, Evening (Bathroom)
P6: Morning, afternoon & Weekend
P7: 7H – 19H (Office)
P8: 8H – 19H & Saturday (Shop)
P9: Weekend (Secondary house)
(See the next part to view a complete description of the built-in program).
Use the navigation keys (<) or (>) to change the program day displayed. Press the (OK) key to confirm your choice and
come back to the main screen (in AUTO mode). If you chose a user program U1 to U4, as above you can choose the
program, but you can also customise it.
Program mode
Current day
Programm of the day
Program followed

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Default setting: U1, U2, U3, U4 = Comfort for the whole week. Press on the edition key to customise a user
program.
Symbols and explanation for program creation
• First step of the day ( Comfort temperature).
The wakeup hour needs to be adjusted.
• Middle step of the day ( Reduced temperature).
The leaving hour needs to be adjusted.
• Middle step of the day ( Comfort temperature).
The comeback hour needs to be adjusted.
• Last step of the day ( Reduced temperature).
The sleeping hour need to be adjusted.
The programm steps have 30 minutes.
Each time a value or icon blinks you are able to make a choice with (-) or (+) keys, once the choice is made, press the
(OK) key to jump to the following steps. The program creation will always start with the day 1 (Monday).
Once you have pressed the key, the following display will appear:
Now you are invited to adjust the hour of the first step of the program with (-) or (+).
Press (OK) to confirm and go to the following step.

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Now you are invited to choose the type of next steps of the program (blinking icons), 2 choices are possible:
1. Choice is to choose the sleep icon. (End of the day)
2. Choice is to choose the leaving icon, to add one step to the program during the day.
When the choice is made, press (OK) to confirm. Then you can adjust the hour of this step with (-) or (+).
When the step „hour“ is set press (OK) to jump to the next step.
You will be directly invited to adjust with (-) or (+) the hour of the comeback step.
Press (OK) to confirm and go to the following step.

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You are again invited to choose the type of next steps of the program (blinking icons):
1. choice is to choose the sleep icons. (End of the day)
2. choice is to choose the leaving icons, to add another step to the program during the day.
When the choice is made, press (OK) to valid and you can adjust the hour of this step with (-) or (+).
Press (OK) to confirm and finish the edition of the first day.
Now you can choose to copy the program day just created to the subsequent days. Make the choice between “Yes”
or “no” with (-) or (+) and confirm your choice with (OK). If you select “no”, you will be invited to create a program for
Tuesday (repeat the previous method to built it). If you select “Yes”, you will have the possibility to copy the program to
the following days (on Tuesday on Wednesday... up to the last day of the week (7 Sunday). When you press (OK) on the
last day (7 Sunday) you will be invited to “SAVE” your program.
Then the message “SAVE” and the blinking green LED appears.
Press the (OK) key to save your program and return to AUTO operating mode following your user program. Press the
escape key ( ) to erase your user program changes and come back to the operating mode.

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Holiday „Mode“
The holiday mode allows you to set the anti-freeze temperature for a selected number of days. You can adjust the
duration in day “d” with (-) or (+), press (OK) to start. (Adjustable 1 to 99 days). The anti-freeze setting temperature
is fixed and can be adjusted in the parameter menu number 06 ‘HG’, see chapter 6. (Default value 10 °C). The logo
will blink and the number of the left days is displayed until the end of the period. If you want to stop the holiday function
before the end, set the duration period to “no” with (-) key.
Timer mode
The „timer mode“ allows you to adjust the temperature and the duration for a special time. This function can be used
when you stay at home for several days or if you want to override the program for some time (reception...). You can first
adjust the duration in hours “H”, if it is below 24H, then in day “d” with (-) or (+), press (OK) to validate. (Adjustable 1
hour to 99 days). In a second time, you can adjust the desired setting temperature with (-) or (+), press (OK) to start
the function. (Default value is 22 °C)
The logo will blink and the number of hours /days left is displayed until the end of the period. If you want to stop the
timer function before the end, set the duration period to “no” with (-) key.
In combination with central
If your thermostat works in combination with a wireless central, it will become a remote unit. All the working will be now
done on the central, you can view all information sent by the central or by the receiver and also change the room setting
temperature from this unit. Screenshot of thermostat in combination with the wireless central.
Note: The time will be also sent by the central, then all your installation will be synchronized with the same time.

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Keyboard lock function
Use this function to prevent all changes of your settings (in a child room, public area…). To activate the key lock function,
first press maintained the escape key ( ) and then press simultaneously on the edition key . The “ ” logo will be
displayed on the screen. Repeat the same procedure to unlock the key board.
Open window function
Conditions of open window detection:The thermostat detects an „Open window“ if the displayed temperature (internal
or ambient sensor) decreases by 3 °C or more during a 5 minutes period (or less). In this case, the thermostat stops
heating for 15 minutes. The function remains active during those 15 minutes so the stop can last more time, if the
temperature continues decreasing. As an indicator of this function, the room temperature will blink.
Return to normal mode
The thermostat returns automatically to the normal mode after the stop period. The function can be overwritten by
pressing the (OK) button during the stop heating phase. Then the blinking temperature should stop to indicate the end
of the detection.
Special cases
This function doesn‘t work if the thermostat is in the floor regulation. This function also doesn‘t work if the thermostat
is in the OFF / Antifreeze Mode: If the temperature is less than 10 °C, the thermostat will regulates at 10 °C during the
stop phase.
Information
With this function, by several presses on the escape key ( ), you can quickly view all current temperatures of the probe
sensors connected to your thermostat or your receiver linked (room, ambient or floor sensors). This “Scroll function” is
only available in the main screen.
Parameters menu
Your thermostat has a parameter’s menu, in order to enter in this menu, press and maintain the edition key during
5 sec. Then the parameter menu will appear and first parameter screen will be displayed:
Now you can select a parameter which must be adjusted with the navigation keys (<) or (>), once the parameter is
chosen, toggle the value with the (OK) key, modify it with (-) or (+) and confirm your adjustment with (OK). To leave the
parameter menu, choose the parameter « End » and press (OK).

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Number Default value & other possibilities
00
rF INI: Radio configuration
Sends the radio link signal in order to assign the RF Thermostat with it’s RF receiver. You also need
to set simultaneously the receiver in the radio configuration mode (On a simple receiver press and
maintain button until the green light lit’s up, see receiver leaflet).
01
dEG: Unit of the temperatures displayed
°C Celsius
°F Fahrenheit
02
--:-- Selection of the time clock unit
24H (24:00)
12H (12:00 AM/PM)
03
dst: Daylight summer time change summer<->winter
Yes – automatic change according to date
No - no daylight summer time automatic change
04
AirC: Calibration of the internal sensor. The calibration must be done after 1 day working with the
same setting temperature in accordance with the following description: Put a thermometer in the
room at 1.5M distance from the floor (like the thermostat) and check the real temperature in the
room after 1 hour. When you enter on the calibration parameter “no” is displayed on the right to
indicate no calibration has made. To enter the value shown on the thermometer, use the (-) or (+)
keys to enter the real value. Then, press (Ok) to confirm. The message “Yes” should be displayed;
the value will be stored in the internal memory. If you need to erase a calibration press on the escape
key ( ). The old value will be erased and the message “No” will be displayed.
* Pay attention:
Only the heating element driven by the thermostat must be used during the complete step of the
calibration.
05 OutC, AMbC, FlrC: Calibration of the external wired sensor.
Same calibration method as described in parameter “04 AirC” above.
06
HG: Anti-freeze temperature used in Holiday mode
Default value 10°C.
Use the (-) or (+) keys to change the anti-freeze setting temperature.
Then press (Ok) to confirm.
07
ITCS: NO, yes
The Intelligent Temperature Control System will activate your installation in advance (2 hours
maximum) to assure the desired temperature at the hour programmed following your weekly
program. This automatic control system works in the following way:
When you start your thermostat for the first time, it will measure the time taken by your installation
to reach the set temperature. The thermostat will re-measure this time at each program change
to compensate external temperature change & influence. You can now program your thermostat
without the need to adjust the temperature in advance because your thermostat does it
automatically for you.

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Number Default value & other possibilities
08
Clr ALL: Reset to Factory setting
Press and maintain (Ok) key during 10s to reset Set points temperatures and user parameters
in this menu to factory default settings. User programs will also be resetted.
Pay attention:
Ensure you that you have all necessary elements to re-setup your installation before using this
function.
09
Displayed only if it is linked with a multizones receiver
CHAn—
--: number of the linked zone
10 Software version
VErS ____
11 End: Exit the parameter’s menu. Press the (OK) key to exit the installation parameter menu and
return to normal operation.
Troubleshooting & Solution
My Thermostat doesn’t start
Batteries Problem
Check if the protection sticker on the batteries is removed.
Check the batteries orientation.
Check the capacity of the batteries
My Thermostat Led, blinks in Red
Problem on sensors
The logo blinks (ambient sensor)
Contact your installer or seller
The logo blinks (Floor sensor)
Check the connection of the sensor on the receiver.
Disconnect the sensor and check it with an ohmmeter (the value
must be around 10 kΩ).
Batterien sind zu schwach The logo blinks (Batteries) . Change the batteries.
My thermostat seems to work correctly but the heating doesn’t work correctly
Output
On the receiver:
Check the good reception of RF signal, Check the connections.
Check the power supply of the heating element.
Contact your installer
RF-communication
Check the following points:
The receiver must be put at a minimum distance of 50 cm of all
others electrical or wireless materials (GSM, Wi-Fi..).
The receiver shouldn’t be fixed on a metallic part or too close of
hydraulic pipes… (Copper…)
My thermostat seems to work correctly but the temperature in the room was never in accordance with the
program
Program
Check the Clock
The difference between Comfort & Reduced temperature is too high?
The step in the program is too short?
Your installation use an energy saver, check the correct working.
Contact your installer, to check & adjust the regulation parameters
with your heating system.

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Advanced installer‘s parameters menu
External sensor
Type NTC 10 kΩ
at 25 °C (ß = 3950)
Entrance in the thermostat menu
Press 10 sec on the key
In order to enter in the menu, press on the escape key during 10 seconds, the following display with the first
parameter appears:

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Once you entered in the menu, go to the parameter you want to select, by using the keys (<) or (>) . Use the key (+) or (-)
to edit and modify and confirm by pushing the (OK) key. To leave the parameter menu, go to the parameter “End” and
press the (OK) key.
Parameters Installer‘s advanced menu
Number Description Description of
the parameters Factory value Other possibility
20 REGU - - -
Selection of the
sensor used for the
regulation.
„AIR“
Internal ambient sensor
„amb“: External ambient
sensor. The following option
are only available with receiver.
„FLR“: Floor sensor regulation
„FL.L“: Air regulation with floor
limitation possibilities
(see parameters 25&26)
21 Hot ---
Use this option if
you want to allow
the zone to work in
cooling mode
„Hot“
Function activated
„Cld“
Function deactivated
22 AirS - - -
View of the
measured values of
the internal sensor.
“- -.- “
23 AmbS - - -
View of the
measured values
of the external
(Ambient) sensor
“- -.- “

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parameter advanced installation menu
Number Description Description of the values Factory settings other Possibilities
24 RecS - - -
View of the measured values of
the floor sensor connected to the
receiver.
“- -.- “
25 FL.Lo - - - Lower limit of the floor temperature
„No“
The lower limitation is
not used.
From 5 °C to
„FL.Hi“
26 FL.Hi - - - Upper limit of the floor
temperature.
„No“
The upper limitation is
not used
From „FL.Lo“ to
40 °C
27 reg - - - Selection of regulation type
„bp“
Proportional band
(PWM)
„hys“
Hysteresis (On/Off)
28 Bp1 - - - screed choice.
„uf1“
For liquid screed with
low thickness
< 6cm
„uf2“
For traditional
screed with
thickness
> 6cm
29 Bp2 - - - Floor covering choice. „Fl1“
For tiles
„Fl2“
For wood parquet
(floating or not)
30 wir
Pilot wire function for French
Market application:
Use this option if your installation
has the pilot wire installed in
combination with an energy saver.
„Yes“
Function activated
„No“
Function
deactivated
31 min Minimal value of the setting range „5,0 °C“ „15,0 °C“
32 max Maximal value of the setting range „20,0 °C“ „37,0 °C“
33 Win
Automatic open window detection.
(See user guide for more
explanation)
„Yes“
Function activated
„No“
Function
deactivated
34 Clr EEp All parameters will be reloaded
with the factory value. Press on the (OK) key during few seconds
35 End To exit the installer’s menu Press on the (OK) to exit.

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Thermostat description
The Radio Frequency „RF“ thermostat (868 MHz) is aspecially designed to control different types of heating, in
combination with a RF-Receiver. The thermostat is used to control electrical heating systems. It was developed to
optimize your energy consumption and heating comfort:
Advantages of the RF- thermostat:
• modern design and material
• bidirectional wireless communication 868 MHz
• 2 AAA batteries (up to 2 years operating life)
• 2 parameter menu (user- and installer)
Start up
The LED indicator will flash quickly during 4 seconds
Comfort mode: Controlls the temperature permanently to the chosen value, depending on the adjusting knob.
OFF: Select this mode to turn off the thermostat.
RF-Configuration
• First of all, switch the button mode of the thermostat in comfort position
• To connect the RF thermostat with the receiver you have to put the receiver in the “rF init” mode (please refer to
the receiver leaflet).
• Once, on the thermostat switch the button mode on the OFF position ,then in the comfort position . If the
thermostat is well linked, the LED will flash quickly in green. Otherwise a green slow flash apperas and output after
10sec is required.
Dimension in mm
83 mm
80 mm
27 mm 60 mm
HERZ Analogue wireless control system
datasheet 3 F799 04, Issue 0419

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• Now you can check the RF distance, go to the room which must be regulated. Put your thermostat on the final
position (On the wall or table...), then put the thermostat in the comfort mode (setting temperature position 35 °C).
Close the door and go to the receiver to check if the new status of the thermostat has received. (The heating is
generally showed by a Red LED).
Now return to the thermostat and switch it off. Check on the receiver again, if it’s also switched off (The red LED must
be turned off).
• If the RF signal is received correctly, adjust your setting temperature as you want.
• If the RF signal isn’t received correctly, check the installation (receiver position, distance...)
To make the installation easier, it will be better to have the thermostat near to the receiver during the configuration
mode. (A minimal distance of > 1meter must be kept).
Technical specifications
Environmental conditions
Operating temperature
Shipping and storage temperature
0 °C - 40 °C
0 °C - 50 °C
- 10 °C - 50 °C
Electrical protection IP30 Class II
Setting temperature range 5 °C bis 35 °C
Regulation characteristics Proportional Band (PWM 2 K at 10-min-cycle)
Power Supply
Operating life
2 x AAA (Micro) 1.5 V
~ 2 years
Sensing elements:
internal and external (option) NTC 10 kOhm bei 25 °C
radio frequency 868 MHz, < 10 mW
CE-directives
Your product has been designed in conformity with the
European Directives.
R&TTE 1999/5/EC
EMC 2004/108/EC
RoHS 2011/65/EU
Product conformed to
Classification
Contribution
UE 811/2013 und 2010/30/UE
IV
2 %
Working
When you modify the setting temperature or the mode, the thermostat manages the receiver. The LED flashes quickly
in green for 2 seconds (quick red flashes for low batteries indication). When the batteries must be replaced, always
exchange the 2 batteries at the same time.
Operating status display
• Constant red: (Internal Sensor regulation) Heating indication (few sec after consign adjustment).
• Constant orange: (External Sensor regulation) Heating indication (During consign adjustment)
• LED OFF: no heating demand
Attention
If the thermostat is used with a touch central unit, the thermostat serves as a room temperature sensor. The setpoint
temperature and settings are made via the central unit.