bnthermic U16c PROGRAMMABLE THERMOSTAT
INTRODUCTION
Thank you for purchasing a BN Thermic product. Manufactured to a high standard, this product will, if used according to these instructions and properly maintained, give you years of trouble free performance. Please ensure instructions remain with your customer for their reference
REGISTER: PLEASE REGISTER THIS PRODUCT ONLINE TO ACTIVATE YOUR GUARANTEE AT www.bnthermic.co.uk
IMPORTANT: PLEASE READ THESE INSTRUCTIONS, NOTE THE SAFE OPERATIONAL REQUIREMENTS, WARNINGS, AND CAUTIONS. USE THIS PRODUCT CORRECTLY, AND WITH CARE FOR THE PURPOSE FOR WHICH IT IS INTENDED. FAILURE TO DO SO MAY CAUSE DAMAGE AND/OR PERSONAL INJURY AND WILL INVALIDATE THE WARRANTY.
INTRODUCTION & SPECIFICATION
The RD16 Thermostat is an easy to install and use 7 Day, 6/1 Day or 5/2 Day Programmable Room Thermostat which offers four time and temperature changes each day. It is designed to provide automatic time and temperature control for heating using its inbuilt air temperature sensor or a remote sensor (optional extra). All settings are stored in the controller with battery back-up.
RD16- Programmable Heater Controller
OPERATING GUIDE
To Set Time and Weekday Number
- Turn thermostat on by pressing
button. - Press the
button and the minutes will start to flash. Adjust the minutes by pressing the 
buttons. When correct, press button and the hours will flash. Set these by pressing the buttons. When correct, press button and the day number will flash. Set this by pressing the buttons. When correct, press. Note that Monday is 1, Tuesday 2 etc. If you don’t press a button for 5 seconds display returns to standard mode and you will need to repeat section b.
Programming – The controller is pre-set to the following times and temperatures:-
To adjust or program the time & temperature periods
- Make sure the thermostat is on or turn on by pressing button.
- Press and hold the
button for 3-5 seconds until the time starts to flash, display will also show “12345”and the first period symbol will show. Adjust the hours by pressing the buttons. When correct, press button and the minutes will flash. Set these by pressing the buttons. When correct, press button and the temperature will flash. Set this by pressing the buttons. When correct, press and the second period symbol will show and the hours will flash. Now repeat the above to set all 4 periods. Once set, the days will change to 6+7 and you repeat the above procedure to program Saturday and Sunday. Note “12345” on the display while programming means you are setting all 5 Weekdays “6+7” on the display while setting means you are programming Saturday & Sunday. If you don’t press a button for approx. 5 seconds the controller will automatically store the settings and exit programming mode.
Run Modes
- Turn thermostat On or Off by pressing the button.
- When “ON” press to toggle between Auto mode
and Manual mode 
- When in Auto mode you can override the set temperature by pressing the buttons.
- This override will last until the next program period and is shown by both the and symbols.
- When in Manual mode you can override the set temperature by pressing the or buttons.
Note:- The thermostat will stay in Manual mode with the same set temperature until you switch it to Auto mode or turn the thermostat off.
At any time you can return to the auto temperature set point by pressing the button until only the Auto mode shows.
Locking the controller
The controller has 2 lock settings selected in the default settings (see section 5). Half lock, when set only allows the On / Off button to be pressed. Full lock disables all buttons except the unlock sequence. Putting the controller in lock mode indicated by a 
symbol on the screen is done by pressing and holding the
button until the symbol appears. Unlocking is the reverse process.
Holiday Mode – Note: 1 day = 24 hours count down
Holiday days (count down) and temperature set point can be set so that the heating runs at a lower temperature whilst you are away and reverts back to normal when you return. To access, make sure the controller is on and then press the button for 3-5 seconds until the screen displays “Off”. Change to “On” by using the buttons. Then press the button to set the number of days you are away by using the buttons. Then press the button to set the temperature required while you are away by using the buttons. Finally, press the button to set. Holiday mode is shown by a
symbol displayed on the screen. Once set and counting down, to exit holiday mode early press the button
ELECTRICAL SAFETY
WARNING! It is the responsibility of the owner and the installer to read, understand and comply with the following:
- You must check all electrical products, before use, to ensure that they are safe. You must inspect power cables, plugs, sockets and any other connectors for wear or damage. You must ensure that the risk of electric shock is minimised by the installation of appropriate safety devices. A Residual Current Circuit Breaker (RCCB) should be incorporated in the main distribution board. If in any doubt consult a qualified electrician.
- You must also read and understand the following instructions concerning electrical safety.
- The Health & Safety at Work Act 1974 makes owners of electrical appliances responsible for the safe condition of those appliances and the safety of the appliance operators. If in any doubt about electrical safety, contact a qualified electrician.
- Installation should always be carried out by a qualified electrician or a competent person in accordance with current electrical regulation.
- Ensure that the cables are always protected against short circuit and overload.
- The unit should be protected by a suitably rated isolator and fuse or MCB.
- This controller is IP20 rated and is suitable for indoor.
GENERAL SAFETY INSTRUCTIONS
- Remove all packaging and store it away from children, check the package and controller for visible damage or tampering.
- Familiarise yourself with the applications and limitations of the controller.
- Only use recommended attachments and parts. To use unauthorised parts may be dangerous and will invalidate your warranty.
- DO NOT use in areas where hazardous gasses or dusts may be present.
- DO NOT disassemble the controller for any reason. There are no user-serviceable parts inside.
- DO NOT use this controller to perform a task for which it has not been designed.
INSTALLATION
CHOOSING A LOCATION FOR YOUR RD16
The RD16 controller should be mounted on an internal wall approximately 1.5 meters from floor level and should be in a position away from draughts, direct heat and sunlight.
INSTALLING THE RD16
The thermostat requires a one gang back box having a minimum depth of 35mm.
- Remove the front screen from the back of the thermostat by turning over so it looks like picture A. Now with your fingers holding the white front screen gently push the back down using your thumbs. The black metal plate and the wire connection block should move together and end up like picture B.
- The back and front will now gently pull apart (NO FORCE REQUIRED) exposing the connecting plug and cable. Gently remove the plug and cable from the back of the front
screen. You will now have two parts looking similar to picture3
- Wire the thermostat as per diagram to the right making sure all the terminals are done up tightly. Do NOT exceed total load of 16A. Loads greater than 16A should be controlled via a suitably rated contactor or relay box.
OPTIONAL REMOTE SENSORS
- There are 4 types of remote sensors that can be used with the RD16 thermostat
- If you are using a remote sensor this is wired into terminals 5 and 6 (Polarity of the sensor does not matter).
- You will also need to change the default settings once the thermostat is powered up.
Default settings – changes
Using section 5 of these instructions change default setting “A4” so that it is set to “N2” external sensor.
RE-ASSEMBLING OF THE FRONT SCREEN
- Once all the connections have been made, make sure the arrow on the back plate faces upwards and secure to the back box using two screws. See Picture 1 to the right.
- Reconnect lead to the front screen. Note:- The plug only fits one way around so don’t force it. Place the front screen onto the back plate so that the bottom of the back plate is showing as per Picture 2 below
- Slide down the front screen until it clips into position. See Picture 3 to the right.
CHANGING THE MASTER / DEFAULT SETTINGS
There are various master / default settings that can be changed by entering the default settings. To enter these settings, turn off the thermostat by pressing the button. Then press and hold the button for 3-5 seconds until the A1 appears on the screen. You are now in settings mode and if you don’t press any button for 5 seconds the display reverts back to off mode. Press button to switch to next option and press buttons to adjust the data. If you wish to exit the settings without waiting 5 seconds press the button.
USING AS A CONVENTIONAL THERMOSTAT
It is easy to set up your RD16 thermostat to operate as a simple, conventional thermostat without the need to programme different times and temperatures. There are 2 steps.
- Set the temperature required – Refer to “Run Modes” on page 3 and use manual mode, then select the required temperature by using the buttons.
- Lock the thermostat – Refer to “Locking the controller” on page 3. Locking the thermostat will disable all the buttons except the on/off button. If you want to disable the on/off button as well, you will need to change the default lock settings before starting this process (see section 5).
SENSOR FAULT CODES
E1 or E2 fault codes are displayed if the sensors are faulty or are not connected. The thermostat will stop heating until the fault is corrected. If in the master settings shown overleaf, you have selected N2 or N3 for option A4 (Sensors used) you MUST have an external sensor present and working otherwise the display will show fault code E2 and will not work
WEEE REGULATIONS:
This appliance bears the symbol of the crossed waste bin. This indicates that, at the end of its useful life, it must not be disposed of as domestic waste, but must be taken to a collection centre for waste electrical and electronic equipment. It is the user’s responsibility to dispose of this appliance through the appropriate channels. Failure to do so may incur penalties established by laws governing waste disposal.
REGISTER: Activate your warranty by registering online at www.bnthermic.co.uk and retain this installation data for future reference.
IMPORTANT: No liability is accepted for incorrect use of this product.
WARRANTY: Your BN Thermic product is guaranteed for one year from date of purchase. We will repair or replace at our discretion any part found to be defective. We cannot assume any consequential liability. This guarantee in no way prejudices your rights under common law and is offered as an addition to consumer liability rights
- BN Thermic Ltd,
- 34 Stephenson Way,
- Crawley, RH10 1TN
- Tel: +44 (0) 1293 547361
- [email protected]
- www.bnthermic.co.uk
Reference
Download Manual:
bnthermic U16c PROGRAMMABLE THERMOSTAT INSTRUCTIONS Manual