Homematic IP HmIP-WTH-B-2 Temperature Thermostat User Manuals

Read this manual carefully before beginning operation with your Homematic IP components. Keep the manual so you can refer to it at a later date if you need to. If you hand over the device to other persons for use, hand over this manual as well.

Symbols used

Attention
This indicates a hazard.

Please note
This section contains important additional information.

Hazard information

Do not open the device. It does not contain any parts that can be maintained by the user. In the event of an error, have the device checked by an expert.
For safety and licensing reasons (CE), unauthorized change and/or modification of the device is not permitted.
The device may only be operated in a dry and dust-free environment and must be protected from the effects of moisture, vibrations, solar or other methods of heat radiation, cold, and mechanical loads.
The device is not a toy; do not allow children to play with it. Do not leave packaging material lying around. Plastic films/bags, pieces of polystyrene, etc. can be dangerous in the hands of a child.
We do not assume any liability for damage to property or personal injury caused by improper use or the failure to observe the hazard information. In such cases, any claim under warranty is extinguished!
For consequential damages, we assume no liability!
The device may only be operated within residential buildings.
Using the device for any purpose other than that described in this operating manual does not fall within the scope of intended use and shall invalidate any warranty or liability.

Function and device overview
The Homematic IP Wall Thermostat offers time-controlled regulation of your conventional radiators with Homematic IP Radiator Thermostats or your floor heating in connection with Homematic IP Floor Heating Actuators according to individually tailored heating phases. The wall thermostat serves to measure the temperature in a room. The data is cyclically transmitted to a radiator thermostat or floor heating actuator in order to regulate the room temperature precisely. In connection with a Homematic IP Window and Door Contact the temperature is reduced automatically during ventilation. You can directly connect the wall thermostat to one or more Homematic IP devices (e.g. the Homematic IP Radiator Thermostat – basic) and adjust it to your personal settings. Alternatively, you can control the wall thermostat in connection with a Homematic IP Access Point comfortably via the free smartphone app. Thanks to battery operation and radio communication, the device is highly flexible where mounting and selecting a mounting location are concerned.

Device overview

(A) Electronic unit (thermostat)
(B) Display
(C) System button (pairing button and LED)
(D) Minus button
(E) Menu/Boost button
(F) Plus button
(G) Battery compartment

Setpoint/actual temperature
Open window symbol
Battery symbol
Radio transmission
Boost function
Manual operation*
Automatic mode*
Holiday mode*
Heating
Cooling
Operating lock*
Setpoint temperature
Overview of heating phases
Time and date*
Offset temperature*
Programming a heating profile*
Days of the week

General system information
This device is part of the Homematic IP smart home system and works with the Homematic IP protocol. All devices of the system can be configured comfortably and individually with the user interface of the Central Control Unit CCU3 or flexibly via the Homematic IP smartphone app in connection with the Homematic IP cloud. All available functions provided by the system in combination with other components are described in the Homematic IP Wired Installation Guide. All current technical documents and updates are provided at www.homematic-ip.com.

Start-up

Add Device
Read this entire section before starting the pairing procedure. You can either connect the wall thermostat directly with one or more Homematic IP devices or add the device to the Homematic IP Access Point (HmIP-HAP). After direct pairing, configuration has to be done directly on the device. After adding to the Access Point, configuration is done via the Homematic IP smartphone app.

Direct pairing
You can connect the Homematic IP Wall Thermostat to a Homematic IP Floor Heating Actuator (HmIP-FALx-Cx, HmIPFALMOT- Cx), a Homematic IP Radiator Thermostat – basic (HmIPeTRV- B/HmIP-eTRV-B-2) or a Home-matic IP Window- and Door Contact with magnet (HmIP-SWDM/ HmIP-SWDM-2).

Please make sure you maintain a distance of at least 50 cm between the devices.
You can cancel the pairing procedure by briefly pressing the system button (C) again. This will be indicated by the device LED (C) lighting up red.
The device LED (C) lights up green to indicate that pairing has been successful. If pairing failed, the device LED lights up red. Please try again.
If no pairing operations are carried out, pairing mode is exited automatically after 3 seconds.
If you want to add another device to an existing device group, first activate the pairing mode of the existing device in the group and afterwards the pairing mode of the new device.
If you want to add a wall thermostat to an existing device group including a radiator thermostat and a window contact, you first need to pair the wall thermostat to
the radiator thermostat. Afterwards, you can pair the wall thermostat with the window and door contact.
If you are using several devices in one room, you should pair all devices with each other.

Pairing with a Homematic IP Floor Heating Actuator

If you want to pair the wall thermostat with a Homematic IP Floor Heating Actuator, the pairing mode of both devices has to be activated first. To do this, proceed as follows:

Select the required channel of the floor heating actuator and activate the pairing mode using a long button press. The device LED starts to flash orange. For further information, please refer to the user manual of the floor heating actuator.
Open the battery compartment (G) using a slotted screwdriver to loosen the wall mouting plate
Remove the insulation strip from the battery compartment of the wall thermostat.
Press and hold down the system button (C) of the wall thermostat for at least 4 seconds to activate the pairing mode. The device LED (C) flashes orange
If the pairing was successful, the LED lights up green.

Pairing with other Homematic IP devices
To connect the wall thermostat with another Homematic IP device, the pairing mode of both devices has to be activated. To do this, please proceed as follows:

Open the battery compartment (G) using a slotted screwdriver to loosen the wall bracket
Remove the insulation strip from the battery compartment of the wall thermostat.
Press and hold down the system button (C) for at least 4 seconds to activate the pairing mode. The device LED (C) starts to flash orange. Pairing mode remains activated for 3 minutes.
Press and hold down the system button of the device you want to connect (e.g. the radiator thermostat – basic) for at least 4 seconds to activate the pairing mode.
The device LED starts to flash orange. For further information, please refer to the operating manual of the corresponding device.
If pairing was successful, the LED lights up green.

Pairing to the Homematic IP Access Point (alternative)
You can connect the device either to the Homematic IP Access Point or the Central Control Unit CCU3. For detailed information, refer to the Homematic IP User Guide, available for download in the download area of www.homematic-ip.com. First set up your Homematic IP Access Point via the Homematic IP app to enable operation of other Homematic IP devices within your system. For further information, refer to the operating manual of the

Access Point.
After pairing the wall thermostat to the Homematic IP Access Point, the menu of the wall thermostat will be hidden and settings can be adjusted only via the Homematic IP app. To integrate the wall thermostat into your system and to enable control via the Homematic IP app, you must add the device to your Homematic

IP Access Point first. To do this, please proceed as follows:

Open the Homematic IP app on your smartphone.
Select the menu item “Add device”(see figure 6).
Open the battery compartment (G) using a slotted screwdriver to loosen the wall mounting plate
Remove the insulation strip from the battery compartment of the wall thermostat.
Pairing mode remains activated for 3 minutes.
You can manually start the pairing mode for another 3 minutes by pressing the system button (C) shortly
Your device will automatically appear in the Homematic IP app.
To confirm, enter the last four digits of the device number (SGTIN) in your app or scan the QR code
. Therefore, see the sticker supplied or attached to the device.
Wait until the connection is completed.
If pairing was successful, the LED (C) lights up green. The device is now ready for use.
If the LED lights up red, please try again.
Select the desired solution for your device.
Allocate the device to a room and give the device a name.

Mounting

Please read this entire section before starting to mount the device.
You can operate the wall thermostat with
the supplied double-sided adhesive strips or
the supplied screws to fix it to a wall.
You can also mount the wall thermostat on a flush-mounting box.

Adhesive strip mounting
For mounting the wall thermostat using the adhesive strips, please proceed as follows:

Choose a site for installation.
Make sure that the mounting surface is smooth, solid, non-disturbed, free of dust, grease and solvents and not too cold to ensure longtime adherence.
Insert the electronic unit (A) into the mounting plate. Make sure that the electronic unit properly engages into the mounting plate.
Fix the adhesive strips on the back side of the mounting plate in the provided area. You should be able to read the letters (“TOP”) on the back side.
Remove the protective film from the adhesive strips (see figure 9).
Press the assembled wall thermostat with the back side to the wall in the position where it should subsequently be attached

Screw mounting
For mounting the wall thermostat by screws, please proceed as follows:

Choose a site for installation.
Make sure that no electricity or similar lines run in the wall at this location!
Position the mounting plate on the desired site on the wall. Make sure that the arrows on the back side of the mounting plate point upwards
Use a pen to mark the positions of the two bore holes according to the mounting plate with a distance of 60 mm on the wall
Drill the marked holes
If you are working with a stone wall, drill the marked two 5 mm holes and insert the plugs supplied.
If you are working with a wooden wall, you can pre-drill 1.5 mm holes to make screws easier to insert.
Use the supplied screws and plugs to fasten the mounting plate to the wall
Insert the electronic unit (A) into the mounting plate
Make sure that the electronic unit properly engages into the mounting plate.

Installation on flush-mounted boxes

You can mount the wall thermostat on flush-mounting/installation boxes using the screw holes
If the device is mounted to a flush-mounting box, there may be no open conductor ends.
If changes or works have to be made on the house installation (e.g. extension, bypass of switch- or socket inserts) or the low-voltage distribution for mounting or installing the device, the following safety instruction must be considered:

Please note! Only to be installed by persons with the relevant electro-technical knowledge and experience!*

Incorrect installation can put

your own life at risk;
and the lives of other users of the electrical system.

Incorrect installation also means that you are running the risk of serious damage to property, e.g. because of a fire. You may be personally liable in the event of injuries or damage to property.

Specialist knowledge required for installation
The following specialist knowledge is particularly important during installation:

The “5 safety rules” to be used: Disconnect from mains; Safeguard from switching on again
Check that system is de-energized;
Earth and short circuit; Cover or cordon off neighbouring live parts;
Select suitable tool, measuring equipment and, if necessary, personal safety equipment;
Evaluation of measuring results
Selection of electrical installation material for safeguarding shutoff conditions;
IP protection types;
Installation of electrical installation material;
Type of supply network (TN system, IT system, TT system) and the resulting connecting conditions (classical zero balancing, protective earthing, required additional measures etc.).

Configuration menu

When using the wall thermostat without Homematic IP Access Point, you can select the following modes via the configuration menu after set-up directly on the device and adjust the settings to your personal needs. To do this, proceed as follows:

By pressing and holding the menu button (E) for at least 2 s, you will be entering the configuration menu.
Select the desired icon via the plus and minus buttons (D + F) by pressing the menu button briefly to change the settings of the different menu items.
Press and hold down the menu button (E) to get back to the previous level.
The menu automatically closes without applying changes if there is no operation for more than 1 minute.

Automatic mode
Switching from manual to automatic mode is only possible if the date and time have been set. In automatic mode, the temperature is controlled in accordance with the set heating profile. Manual changes are activated until the next point at which the profile changes. Afterwards, the defined heating profile will be activated again. To activate the automatic mode, please proceed as follows:

Press and hold down the menu button (E) to open the configuration menu.
Select “Auto” via the plus and minus buttons (D + F) in the menu.
Confirm with the menu button.
To confirm, the symbol flashes twice and the device changes back to automatic mode.

Manual operation
In manual mode, the temperature is controlled in accordance with the current temperature set via the push-buttons (D + F). The temperature remains activated until the next manual change. To activate the manual mode, please proceed as follows:

Press and hold down the menu button (E) to open the configuration menu.
Select “Manu” via the plus and minus buttons (D + F) in the menu.
Confirm with the menu button.

Offset temperature
As the temperature is measured on the room thermostat, the temperature distribution can vary throughout a room. To adjust this, a temperature offset of ±3.5 °C can be set. If a nominal temperature of e.g. 20 °C is set but the room presents with only 18 °C, an offset of -2.0 °C needs to be set. An offset temperature of 0.0° is set in the factory settings. To adjust the offset temperature, please proceed as follows:

Press and hold down the menu button (E) to open the configuration menu.
Select “Offset” via the plus and minus buttons (D + F) in the menu.
Confirm with the menu button.
Select the desired offset temperature using the plus or minus button and confirm with the menu button.
To confirm, the temperature flashes twice and the device changes back to the standard display.

Programming a heating profile

In this menu item, you can create a heating profile with six heating and cooling phases (13 change settings) according to your personal needs.
Press and hold down the menu button (E) to open the configuration menu.
• Select “Prg” using the plus or minus buttons (D + F) and confirm with the menu button.
• In the menu item “dAy”, use the plus and minus buttons to select single days of the week, all weekdays, the weekend or the entire week for your heating profile and confirm with the menu button.
• Confirm the start time 00:00 pm with the menu button.
• Select the desired temperature and start time using the plus or minus button and confirm with the menu button.
• The next time is shown in the display. You can adjust the time via the plus or minus buttons.
• Select the desired temperature for the next time period using the plus or minus button and confirm with the menu button
Repeat this procedure until temperatures are stored for the entire period between 0:00 and 23:59 h.
To confirm, the time flashes twice and the device changes back to the standard display.

Operating lock

Operation of the device can be locked to avoid settings being changed unintended (e.g. through involuntary touch). To activate the operating lock, please proceed as follows:

Press and hold down the menu button (E) to open the configuration menu.
Select “Operating lock” via the plus and minus buttons (D + F) in the menu.
Confirm with the menu button.
Use the plus button to select “On” to activate the operating lock or minus “OFF”, to deactivate the function and confirm with the menu button.
To confirm, On or OFF flashes twice and the device changes back to the standard display.
After activating the operating lock, the “lock” symbol is shown in the display.
To deactivate the operating lock, please proceed as follows:
Press and hold down the menu button (E) to open the configuration menu.
Confirm with the menu button.
Select “OFF” via the minus buttons (D) to deactivate the operating lock.

Time and date
To set the date and time, please proceed as follows:

Press and hold down the menu button (E) to open the configuration menu.
Select “Date/time” via the plus and minus buttons (D + F) in the menu.
Confirm with the menu button.
Select the desired year using the plus or minus button and confirm with the menu button.
Select the desired month using the plus or minus button and confirm with the menu button.
Select the desired day using the plus or minus button and confirm with the menu button.
Select the desired hours using the plus or minus button and confirm with the menu button.
Select the desired minutes using the plus or minus button and confirm with the menu button.
To confirm, the time flashes twice and the device changes back to the standard display.

Holiday mode

If you want to maintain a constant temperature for a certain period, e.g. during your holidays or a party, the holiday mode can be used. To activate the holiday mode, please proceed as follows:

Press and hold down the menu button (E) to open the configuration menu.
Select “Holiday” using the plus or minus buttons (D + F) and confirm with the menu button.
Use the plus or minus buttons to select the time, until which you want to activate the holiday mode and confirm with the menu button.
Use the plus or minus buttons to select the date, until which you want to activate the holiday mode and confirm with the menu button.
Use the plus or minus buttons to select the temperature for the holiday mode and confirm with the menu button..
To confirm, the symbol flashes twice and the device changes to holiday mode.

Operation

After pairing and mounting have been performed, simple operations are available directly on the device.

Temperature: Press the left (D) or right (F) push-button to manually change the temperature. In automatic mode, the manually set temperature will remain the same until the next point at which the profile changes. Afterwards, the defined heating profile will be activated again. During manual operation, the temperature remains activated until the next manual change.
Boost function: Press the boost button (E) briefly to activate the boost function for heating up the radiator quickly and briefly by opening the valve. There will be a pleasant room temperature right away because of the radiated heat. The boost function can only be activated if the wall thermostat is used in connection with a radiator thermostat, floor heating actuator or a switch actuator.

Replacing batteries

If the symbol for empty batteries appears in the display or in the app, please replace the used batteries by two new LR6/mignon/AA batteries. You must observe the correct battery polarity.

To replace the batteries of the device, please proceed as follows:

Once mounted, the electronic unit (A) can easily be pulled out of the mounting plate. Take hold of the sides of the electronic unit and pull it from the mounting plate.
Turn the electronic unit over to remove or insert the batteries.
Insert two new 1.5 V LR6/mignon/AA batteries into the battery compartment, making sure that you insert them the right way round
Place the electronic unit back into the mounting plate
Please pay attention to the flashing signals of the device LED while inserting the batteries
Once the batteries have been inserted, the device will perform a self-test
(approx. 2 seconds). Afterwards, initialization is carried out. The test display will indicate that initialization is complete: orange and green lighting.

Caution! There is a risk of explosion if the battery is not replaced correctly. Replace only with the same or equivalent type. Never recharge non-rechargeable batteries. Do not throw the batteries into a fire. Do not expose batteries to excessive heat. Do not short-circuit batteries. Doing so will present a risk of explosion.

Contact with batteries that are dead or damaged can cause skin irritation. Use protective gloves in this case.

Used batteries should not be disposed of with regular domestic waste! Instead, take them to your local battery disposal point

Troubleshooting

Weak battery

Provided that the voltage value permits it, the device will remain ready for operation also if the battery voltage is low. Depending on the particular load, it may be possible to send transmissions again repeatedly, once the batteries have been allowed a brief recovery period. If the voltage drops too far during transmission, the empty battery symbol ( ) and the corresponding error code will be displayed on the device (see see „9.4 Error codes and flashing sequences“ on page 54). In this case, replace the empty batteries by two new batteries (see see „8 Replacing batteries“ on page 52).

Command not confirmed
If at least one receiver does not confirm a command, the device LED (C) lights up red at the end of the failed transmission process. The failed transmission may be caused by radio interference (see see „12 General information about radio operation“ on page 56). The failed transmission may also be caused by the following:

Receiver cannot be reached.
Receiver is unable to execute the command (load failure, mechanical blockade, etc.).
Receiver is defective.

Duty cycle
The duty cycle is a legally regulated limit of the transmission time of devices in the 868 MHz range. The aim of this regulation is to safeguard the operation of all devices working in the 868 MHz range. In the 868 MHz frequency range we use, the maximum transmission time of any device is 1% of an hour (i.e. 36 seconds in an hour). Devices must cease transmission when they reach the 1% limit until this time restriction comes to an end. Homematic IP devices are designed and produced with 100% conformity to this regulation During normal operation, the duty cycle is not usually reached. However, repeated and radio-intensive pairing processes mean that it may be reached in isolated instances during start-up or initial installation of a system. If the duty cycle is exceeded, this is indicated by one long flash of the device LED (C), and may manifest itself in the device temporarily working incorrectly. The device starts working correctly again after a short period (max. 1 hour).

Error codes and flashing sequences

Error and flashing codes	Meaning	Solution
Battery symbol	Battery voltage too low	Replace the batteries of the device (see „8 Replacing batteries“ on page 52).
Antenna symbol flashing	Communication problem with the Homematic IP Access Point or connected device	Please check the connection with the Homematic IP Access Point or the connected devices.
Lock symbol	Operating lock activated	Deactivate the operating lock via the app or the menu.
Short orange flashing	Radio transmission/ attempting to transmit/data transmission	Wait until the transmission is completed.
1x long green lighting	Operation confirmed	You can continue the operation.
Short orange flashing (every 10 seconds)	Pairing mode active	Please enter the last four numbers of the device serial number for confirmation.
Short orange lighting (after green or red confirmation)	Batteries empty	Replace the batteries.

1x long red lighting	Transmission failed or duty cycle limit is reached	Please try again (see sec. see „9.2 Command not confirmed“ on page 53 or see „9.3 Duty cycle“ on page 53).
6x long red flashing	Device defective	Have a look at your app for error message or contact your retailer.
1x orange and 1 x green lighting (after inserting batteries)	Test display	After the test display has stopped, you can continue.

Restore factory settings
The factory settings of the device can be restored. If you do this, you will lose all your settings. To restore the factory settings of the device, proceed as follows:

Once mounted, the electronic unit (A) can easily be pulled out of the mounting plate. Take hold of the sides of the electronic unit and pull it from the mounting plate.
Remove a battery.
Insert the battery ensuring that the polarity is correct and press and hold down the system button (C) for 4 s at the same time, until the LED will quickly start flashing orange
Release the system button
Press and hold down the system button (C) again for 4 seconds, until the LED lights up green
Release the system button to finish the procedure.The device will perform a restart.

Maintenance and cleaning

The device does not require you to carry out any maintenance other than replacing the battery when necessary. Enlist the help of an expert to carry out any repairs. Clean the device using a soft, lint-free cloth that is clean and dry. Do not use any detergents containing solvents, as they could corrode the plastic housing and label.

General information about radio operation
Radio transmission is performed on a non-exclusive transmission path, which means that there is a possibility of interference occurring. Interference can also be caused by switching operations, electrical motors or defective electrical devices.

The range of transmission within buildings can differ greatly from that available in the open air. Besides the transmitting power and the reception characteristics of the receiver, environmental factors such as humidity in the vicinity have an important role to play, as do onsite structural/screening conditions.

Hereby, eQ-3 AG, Maiburger Str. 29, 26789 Leer/Germany declares that the radio equipment type HmIP-WTH-B-2 is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address: www.homematic-ip.com/en

Technical specifications

Device short name: HmIP-WTH-B-2
Supply voltage: 2x 1.5 V LR6/mignon/AA
Current consumption: 40 mA max.
Battery life: 5 years (typ.)
Degree of protection: IP20
Degree of pollution: 2
Ambient temperature: 0 to 50 °C
Dimensions (W x H x D): 85 x 85 x 22 mm
Weight: 140 g (including batteries)
Radio frequency band: 868.0-868.60 MHz 869.4-869.65 MHz
Maximum radiated power: 10 dBm
Receiver category: SRD category 2
Typ. open area RF range: 250 m
Duty cycle: < 1 % per h/< 10 % per h
Method of operation: Type 1
Software class: A

Subject to technical changes.

Instructions for disposal
Do not dispose of the device with regular domestic waste! Electronic equipment must be disposed of at local collection points for waste electronic equipment in compliance with the Waste Electrical and Electronic Equipment Directive.

Information about conformity
The CE sign is a free trading sign addressed exclusively to the authorities and does not include any warranty of any properties. For technical support, contact your specialist dealer.

REFERENCE

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Homematic IP HmIP-WTH-B-2 Temperature Thermostat User Manuals

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Homematic IP HmIP-WTH-B-2 Temperature Thermostat User Manuals