Bosch CT 100 Control Thermostat
Key to symbols and safety instructions
Key to symbols
Warnings:
- Warnings in this document are identified by a warning triangle printed against a grey background.
- Keywords at the start of a warning indicate the type and seriousness of the ensuing risk if measures to prevent the risk are not taken.
The following keywords are defined and can be used in this document:
- NOTICE indicates a situation that could result in damage to property or equipment.
- CAUTION indicates a situation that could result in minor to medium injury.
- WARNING indicates a situation that could result in severe injury or death.
- DANGER indicates a situation that will result in severe injury or death.
Additional symbols
| Symbol | Explanation |
| ▶ | Step in an action sequence |
 |
Cross-reference to another part of the document |
| • | List entry |
| – | List entry (second level) |
Safety instructions
The Bosch Control is intended for regulating the room temperature and boiler in your home.
- Never dismantle the Bosch Control.
- Avoid high temperatures, damp and a dusty environments. To prevent short circuits or damage to the Bosch Control: when cleaning, do not use water or cleaning agents section 7.1).
- Before starting the installation of the Bosch Control, switch off the main power supply to the heat source.
Environment / disposal
Environmental protection is a fundamental corporate strategy of the Bosch Group. The quality of our products, their efficiency and environmental safety are all of equal importance to us and all environmental protection legislation and regulations are strictly observed. We use the best possible technology and materials for protecting the environment taking into account of economic considerations.
Packaging
We participate in the recycling programs of the countries in which our products are sold to ensure optimum recycling. All of our packaging materials are environmentally friendly and can be recycled.
Old electrical and electronic appliances
Electrical or electronic devices that are no longer serviceable must be collected separately and sent for environmentally compatible recycling.
To dispose of old electrical or electronic devices, you should use the return and collection systems put in place in the country concerned.
Product information
Scope of delivery
- Wall mounting plate
- Bosch Control
- Bag – screws (2 × ) and anchors (2 × )
- Installation/Operating manual
Warranty
This product has a 3 year limited warranty.
See page 12 of this manual for further warranty information or visit www.boschheatingandcooling.com.
Software version
When software upgrades are available, updates will be sent to the Bosch Control automatically via the Wi-Fi connection. After an update, the touch screen layout may vary from the image in this operating manual. The software version installed can be seen on the screen if the screen is locked for cleaning. The latest version of this document can be found in the App “info” pages.
Operating data
All data is stored in the Bosch Control, no consumption data is stored on an external server or on the Internet. This protects your privacy.
More information regarding legal and privacy information can be found in the App “info” pages.
Data connection
- The Bosch Control requires a Wi-Fi connection to your router.
The Bosch Control supports open Wi-Fi-connections and Wi-Fi-connections encrypted with WEP 128, WPA and WPA2 protocols.
WPA2 is the safest protocol and therefore has preference. - The time setting of the Bosch Control is available via an external server. If the Bosch Control has not yet made a connection with this server, the Bosch Control can only be operated manually. Once the connection with the external server is created, the time on the Bosch Control is set.
- All the costs of creating a broadband Internet connection, the use of a smart device are your responsibility.
- The boiler type connected, determines which functions can be used.
Information
In the App in the “info” section, information can be found about legal and privacy information, frequently asked questions, what features are available on which boiler and links to help videos.
Touch screen
Proximity detection
A proximity sensor detects a presence in front of the touch screen. This makes the touch screen light up. If nothing is de-tected, the touch screen will automatically go off. In the case of detection longer than 5 minutes, the touch screen automatically goes off. After this, the touch screen can only be activated again by touching.
Overview of the touch screen
Installation
Initial inspection
- Before installation, check that your boiler and the Bosch Control are a compatible combination.
Visit our webpage at www.boschheatingandcooling.com for a list of compatible boilers.
The requirements for installation are:
- 2-wire EMS BUS connection between the boiler and the Bosch Control.
- Broadband Internet access via Wi-Fi 802.11 b/g if the App and Internet functionality are used.
Choosing the installation location
A reference room is an area (for example the living room) in which the temperature is measured, which is representative of the whole home and where the most time is spent.
Installation in the reference room
Mount the Bosch Control to an interior wall in the reference room. Ensure there is sufficient free space around the Bosch Control. 
Installation of the wall mounting plate
CAUTION: Bosch Control connection. EMS BUS connections only. Do not connect the Bosch Control to the boiler main power supply connection.
The wall mounting plate can be installed directly onto the wall, for example, in the location of the previous controller.
Ensure when installing on a junction box, that draughts cannot affect the measurement of the room temperature.
If necessary, fill the junction box with insulation material.
Connect the 2-wire thermostat cable (EMS BUS) to the terminals on the wall plate. The connections are not polarity sensitive.
Connecting to the boiler
CAUTION: Damage of the Bosch Control. Under no circumstances must the Bosch Control be connected to the boiler’s 120 volt connections or external 120 volt supply.
See the installation instructions of the boiler for more information on where to find boiler connections. The Bosch Control connects to your boiler’s EMS BUS connections only.
Installing/Removing the Bosch Control
Installing
- Hook the Bosch Control to the back of the wall plate [1].
- Press the bottom of the Bosch Control against the wall plate until you hear a “click” [2]. The Bosch Control is now locked.
Removing
- Unlock the Bosch Control by pressing the unlock button [1] under the front edge.
- Tilt the bottom of the Bosch Control up and remove it [2].
Using for the first time
Software updates to the Bosch Control
The software is updated automatically, over your internet connection. Straight out of the box the Bosch Control may not have the latest software installed, as a result, the full App functionality may not yet be supported. The installed software version can be checked on the cleaning screen (section 7.1, page 10).
Starting up the Bosch Control
- Turn on the boiler, this provides power to the Bosch Control.
- Remove the plastic screen protector.
The Bosch Control and boiler will connect automatically fig. 8): - During the connection phase, the boiler, Wi-Fi and internet connection icons are present.
- The Bosch Control establishes a connection with the boiler (shown by a check mark [2] next to the boiler connection icon [1]).
Connecting to the Wi-Fi network and internet
The Bosch Control can only connect to “visible” networks. If the network that the Bosch Control has to connect to is a “hidden network”, this will have to be made “visible”. After connection is made, the relevant network may be “hidden” again.
- Once connected to the boiler, the Bosch Control will automatically look for Wi-Fi networks [1] ( fig. 9).
- The Wi-Fi networks possibilities are displayed [2].
- Searching for networks
- Network names
- Up arrow key
- OK (confirmation) key
- Back key
- Down arrow key
The display [2] shows the Wi-Fi networks found.
- Select the required Wi-Fi network.
- Press the
key [4] to activate the selected Wi-Fi network. Protected Wi-Fi networks are recognised by a padlock. If the Wi-Fi network is password-protected: - Input the Wi-Fi network password (section 4.6.4).
If the required Wi-Fi network is not found:
- Press the “back ”key [5] to set the Bosch Control to the off-line mode.
- Now the temperature can only be set manually on the screen.
- Connection to the App or Bosch Control web-site is not possible.
- Press thekey [4] to search again.
See section 7.3.3, page 11 for troubleshooting guide.
Input Wi-Fi network password
The Bosch Control uses the standard Wi-Fi protocol, do not use any $-signs in your Wi-Fi router password.
- If necessary, remove the $ sign from your router password.
- Connecting and synchronising can take some time.
Input the Wi-Fi network password (fig. 10).
- The password is entered with the keys [4].
- Use the shift key [3] to enter capital letters.
- Special punctuation symbols can be entered using the key [6].
- Each key [4] has several character options. By repeatedly pressing this key, the required character will appear on the entry line [7].
- An incorrectly entered character can be deleted with the “back”-key [5].
- Once the correct password has been entered, confirm the by pressing the “ok” key – [1].
Connecting to Wi-Fi network and internet
- Firstly, connection with the Wi-Fi-network [1] is made, confirmed with a check mark ( fig. 11).
- Secondly, connection to Internet [2] is made, confirmed with a check mark.
Operation
Problem with making the connections?Refer to the Troubleshooting guide on page 11
- If all connections are made, the data is synchronised.
- The display will now show the basic screen.
In the App store the Bosch Control application is found in the iPhone section of the store, but can be installed on an iPhone or iPad.
Download the Bosch Control App to your smart device from either:
- Install the Bosch Control App onto your smart device
- Make a connection to the Bosch Control from your smart device
- Register the App with the Bosch Control website.
- Enter the unique access code (label on the front page).
- Set a personal password, of your choice, and record this on the front of these operating instructions.
Operation
The touch screen is intended for limited manual operation, for all other operations and programming the Bosch Control App on your smart device must be used.
Central Heating
Changing temperature setting
The touch screen lights up when approached. Changing the temperature may be done in the following 3 ways.
Swipe
Swipe down or up to change the temperature to change the temperature by 1 degree.
Tap above or below the temperature shown to change the temperature by 0.5 degree.
Hold (Long press)
Press and hold an up or down key to change the displayed temperature quickly.
Manual mode/time program
The time program can only be set using the App on your smart device.
- Manual mode icon
- Time mode icon
Briefly press the manual mode or time program icon to switch between these functions.
Hot Water
Combi boilers
The boiler preheat function must be enabled to allow the Bosch Control to take control of your hot water.
Refer to your combi boiler user guide to enable the preheat function, i.e. turn the ECO function off.
For combi boilers the hot water screens are only accessible when the hot water control is enabled by you in the App.
Temporarily adjusting the HW time program
Tap the “Time program” icon twice to enter the HW timed function, tap either the “HW timed” icon to switch the hot water ON until the next time period or “HW not timed” icon to switch the hot water OFF until the next time period.
Tap the “back” icon to return to the normal screen.
Setting the HW permanently ON or OFF
Tap the “manual” (hand) icon twice to enter the function, tap either the HW icon for permanently ON or the “no HW” icon for permanently OFF.
Tap the “back” icon to return to the normal screen.
Hot water will now remain permanently in this selected state until the “Time program” icon is selected.
Specifications
Description Unit Value
| Voltage supply | V DC | 14.3 to 16.0 |
| Consumption (maximum) | W | 0.9 |
| Dimensions (L x W x H) | inch
mm |
4 x 6.7 x 1
100 x 145 x 27 |
| Weight | lbs | 0.55 |
| g | 250 | |
| Permissible operating temp. | °F
°C |
32 to 113
0 to 45 |
| Permissible relative humidity | % | 10 to 90 |
| Connection (Wi-Fi) | 802.11 b/g |
Maintenance and troubleshooting
Cleaning the touch screen
Swipe from left to right to lock the touch screen.
The screen is now locked and the installed software version is displayed on the screen.
Clean the touch screen within 15 seconds with a clean, dry cloth.
Change Wi-Fi network or new network password
To connect the Bosch Control to a new Wi-Fi network or if the existing network has a new password:
- Reset the Bosch Control ( section 7.3.2).
- Follow the step to set a Wi-Fi network (section 4.6.3).
Troubleshooting
Fault messages from the boiler are visible on the display and are sent automatically from the Bosch Control to the App.
After a power outage
All settings are saved during a power outage. After the connection is re-established with the Wi-Fi network, the settings will be synchronised with the external server.
Check the date and time setting.
If a connection cannot be made with the internet, the date and time settings can be applied through the local Wi-Fi network with the App from a smart device. Date and time are automatically synchronised.
Reset Bosch Control
If the Bosch Control no longer works properly, it can be disconnected briefly from the wall plate and then re-attached fig. 7, page 6).
If this does not solve the problem, with the Bosch Control mounted on the wall, the reset key (fig. 19) can be pressed for a few seconds to remove the fault. If the fault occurs again, then contact your installer or the Bosch Thermotechnology Corp. Technical Support team.
Reset! Using the reset key deletes all personal settings and the Wi-Fi connection has to be set up again.
Troubleshooting
A full list of frequently asked questions is available in the App “info” pages.
| Error Remedy | |||
No Wi-Fi connection |
The Wi-Fi signal from the Wi-Fi router is possibly not strong enough. Contact Wi-Fi provider, or
consider Wi-Fi repeater in some situations. Only compatible with “b” and “g” routers. |
||
| Wi-Fi network not found | Hide function of the Wi-Fi-router is possibly switched on or the broadcast function (transmitting the
SSID) is switched off. Temporarily switch the hide-function off or broadcast function on. |
||
This display remains on |
Wi-Fi network is possibly protected with “WEP64” protocol. This protocol is not supported.
Change the safety protocol of the router (à router manual). |
||
| IP-address | There is no IP address allocated by the router yet. This can take some time. It may be necessary to
manually allocate an IP address in the router (à router manual). |
||
| New router or Wi-Fi network installed | Remove the Bosch Control from the wall plate, wait 10 seconds and then click the Bosch Control
back onto the wall plate. All Wi-Fi networks found are shown on the display (à section 4.6.3). |
||
| Time ring on the Bosch Control not shown | Connection to the server is broken. Wait until the connection is restored. | ||
| Serial number and access code missing | The serial number and the access code are both on the label on the front of these instructions and also on the label on the back of the Bosch Control. If an App is used to log in, the serial number and the access code can be shown in the App by going via the “Info” menu to the submenu “product information”. If the serial number and the access code cannot be found, then contact the installer/
Bosch Thermotechnology Corp. Technical Support. |
||
| App cannot connect too the Bosch Control | Is the Bosch Control connected to the Internet (àsection 4.6.3)? Are the serial number and the access code input correct? Please note, these are case-sensitive. There is possibly a delay in
establishing the connection. Wait for a few minutes. |
||
| Touch screen locked, timer counting down | A horizontal swipe across the display makes the touchscreen inactive. The touch screen is locked for 15 seconds to be cleaned.
The touch screen may be locked in the App, check the App and unlock if necessary. |
||
| Temperature displayed is too high or too low | In the App, the temperature shown can be calibrated. | ||
| Touch screen will not come on | If there is detection for longer than 5 minutes, the screen goes off automatically. After this, the
screen can only be activated again by touching. |
||
Symbol visible on the screen |
There is no connection to the Internet server, wait until the connection to the Internet server is restored automatically. Once started, the boiler can only be controlled manually, no time program
is available. |
||
| Password with $ signs | The Bosch Control uses the standard Wi-Fi protocol, so it is not possible to use a $-sign in the Wi-Fi
router password. Remove the $ sign from the router password. |
||
|
stays on |
Symbol disappears when the temperature is changed via the display or when the next switching point is reached in the time program mode. | ||
| No full App functionality. | Straight out of the box, the latest software version may not be installed on the Bosch Control, as a result functionality may not yet be supported by the Bosch Control. The software is updated
automatically. |
||
Symbol visible on the screen |
Indication of one of the following messages: repeated ignition attempts, boiler gives maintenance message. This relates to an information signal. The boiler runs normally. | ||
| No software updates received in the Bosch Control | The software is updated automatically and a continuous Internet connection is required for this. If the router is not on continually, updates may be missed. | ||
Warranty Bosch Control
Bosch Control room thermostat Limited warranty
MODELS COVERED
This limited warranty is provided by Bosch Thermotechnology Corp. (“Bosch”) and covers the Bosch Control, smart room thermostat (hereinafter referred to as “Product”). This warranty is provided to the original purchaser of the Product as long as the Product remains installed at its original place of installation.
WARRANTY COVERAGE
Limited Warranty
Bosch warrants that the product will remain free from defects in material and workmanship (3) years from the date of original installation or from the date of manufacture if proof of installation is not available, provided it is installed and properly maintained by a qualified service contractor and the other conditions of this warranty are met. If Bosch determines that the product has a defect in workmanship or materials, Bosch, at its option, will repair or replace the defective part.
ITEMS NOT COVERED
This limited warranty does not cover the following circumstances:
- Components or parts not provided by Bosch.
- Serviceable items and normal maintenance as required per the Installation Manual.
- Components or parts on which the tags or nameplates have been removed, altered or defaced.
- Scratches in or discoloration of finishes.
- The workmanship of any installer. Bosch disclaims and does not assume any liability of any nature for unsatisfactory performance caused by improper installation, repair or maintenance.
- Any labor or material costs for removal, reinstallation, repair and replacement of the defective component.
- Electricity or fuel costs, or any increases or unrealized savings in same, for any reason whatsoever.
- Damage caused by operation of the Product in a corrosive atmosphere, scale deposits and/or highly mineralized or un-softened water supply, electrical failures, water impurities, flooding or acts of God.
- Damage caused by any attachment or modification to the Product, including any energy saving device.
- Damage caused by Product not being installed in accordance with all applicable state and local plumbing and/or building codes and regulations.
- Shipping charges, delivery expenses or administrative fees incurred by the purchaser in repairing or replacing the Product.
LIMITED WARRANTY
OTHER THAN THE OBLIGATIONS OF BOSCH EXPRESSLY SET FORTH HEREIN, BOSCH DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY
OR FITNESS FOR A PARTICULAR PURPOSE. BOSCH’S SOLE OBLIGATION WITH RESPECT TO THE PRODUCT AND THE PURCHASER’S EXCLUSIVE REMEDIES ARE SET FORTH IN THE FOREGOING LIMITED WARRANTY. BOSCH SHALL NOT BE LIABLE FOR ANY INDIRECT, PUNITIVE, INCIDENTAL, SPECIAL, CONSEQUENTIAL OR SIMILAR DAMAGES INCLUDING, WITHOUT LIMITATION, IN-JURY OR DAMAGE TO PERSONS OR PROPERTY OR DAMAGES FOR LOSS OF USE, LOST PROFITS, INCONVENIENCE OR LOSS OF TIME. NOTE THAT ANY REPAIRED OR REPLACED PRODUCT WILL BE WARRANTED FOR ONLY THE
UNEXPIRED TERM OF THE ORIGINAL WARRANTY.
Some states do not allow the exclusion of limitation of damages, or limitations on how long an implied warranty lasts, so the above limitations and exclusions may not apply to you.
WARRANTY CLAIMS PROCESS
If you have a warranty claim you should notify the heating contractor who installed your Product and ask that the contractor notify the distributor from whom the contractor purchased the Product. If this action is not possible or you don’t receive a response, contact Bosch Thermotechnology Corp., 50 Wentworth Avenue, Londonderry, NH 03053. To process your claim, you will need a copy of your original invoice or other proof of purchase and documentation showing the original installation date and location. The alleged defective product must be returned to BTC in accordance with BTC procedure then in force for handling goods returned for the purpose of inspection to determine cause of failure (contact BTC if you have questions regarding the return process). If BTC determines that the returned product is defective and that this warranty applies, BTC will furnish the repaired or replacement product to an authorized BTC distributor who, in turn, will forward the product to the heating contractor who installed your Product.
This Warranty applies to Bosch Products installed in the Continental United States and Canada only.
United States and Canada
Bosch Thermotechnology Corp. 50 Wentworth Avenue Londonderry, NH 03053
Tel. 603-552-1100
Fax 603-965-7581
www.bosch-climate.us
U.S.A. / Les Etats Unis
Products manufactured by/ Produits fabriques par Bosch Thermotechnik GmbH Junkersstrasse 20-24
D-73249 Wernau
www.bosch-thermotechnology.com
Bosch Thermotechnology Corp. reserves the right to make changes without notice due to continuing engineering and technological advances
Reference
Download manual:
Bosch CT 100 Control Thermostat Operating Manual
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