Frequency RF band to control a single heating. Neither product will communicate with. Note: The RF link between the individual room. This makes the. Ask a question. Answer this question Send. John Stirling, No comments 0. Carol Pink, No comments 0. How to change battery on Honeywell CM thermostat? Thank you. About the Honeywell CM I have a new Honeywell wireless thermostat.
Drinking Water Protection Thermal Disinfection of hot water. Does this mc hot water? What would you recommend? Click to read more Heating Controls Online reviews at Reviews. Thermostatic Expansion Valves Other cooling products Accessories. Its only 3 years old but the display is breaking up and failing, makes it near impossible to programme etc.
The receiver and the controller both still working. Is the wiring the same in terms of number wires that the Honeywell B uses? Will I just be able to take off the existing receiver and put this one in its place? Generally a first class product, just uoneywell for the next generation connecting to a phone app. Exhausted batteries. Replace with new batteries. The thermostat shows a flashing symbol on the LCD screen. Batteries are exhausted and need replacing.
The heating is not required at this moment. The BDR91 will adjust the boiler on time to meet this requirement. That is why the heating will be off sometimes even if the symbol is displayed. To check if RF system is communicating properly press the button to increase the set temperature a few degrees above the current temperature. The heating should come on after a few seconds.
Fault in thermostat Remove and re-insert the batteries in the thermostat. If the symbol does not clear itself in a few minutes call the installer. Add page 15 to Favourites. No power to heating system. Check that there is power to the heating system. Program does not call for heat. Move the slider switch to MAN and press or to increase the temperature a few degrees above the current room temperature.
Wrong electrical connection. Call electrical installer to check the boiler and BDR91 power supply as well as the connection between the boiler and the BDR RF communication lost due to the wrong location of the thermostat. Hook the thermostat back on the wall bracket or replace the thermostat on the table stand in the position where RF communication was reliable. A room thermostat works by sensing the air temperature, switching on the heating when the air temperature falls below the thermostat setting, and switching it off once this set temperature has been reached.
So, a programmable room thermostat lets you choose what times you want the heating to be on, and what temperature it should reach while it is on. It will allow you to select different temperatures in your home at different times of the day and days of the week to meet your particular needs. Wireless connection to the boiler allows you to mount the Chronotherm in your room without decor disruption.
Turning a programmable room thermostat to a higher setting will not make the room heat up any faster. How quickly the room heats up depends on the design of the heating system, for example, the size of boiler and radiators. Armchair programming feature lets you program your Chronotherm while resting comfortably in your armchair.
Neither does the setting affect how quickly the room cools down. Turning a programmable room thermostat to a lower setting will result in the room being controlled at a lower temperature, and saves energy.
The way to set and use your programmable room thermostat is to find the lowest temperature settings that you are comfortable with at the different times you have chosen, and then leave it alone to do its job. The best way to do this is to set low temperatures first, say 18C, and then turn them up by one degree each day until you are comfortable with the temperatures.
You wont have to adjust the thermostat further. Any adjustments above these settings will waste energy and cost you more money. LoT Technology provides informative on-screen feedback and operational assistance to the user. If your heating system is a boiler with radiators, there will usually be only one programmable room thermostat to control the whole house.
But you can have different temperatures in individual rooms by installing thermostatic radiator valves TRVs on individual radiators. If you dont have TRVs, you should choose a temperature that is reasonable for the whole house. If you do have TRVs, you can choose a slightly higher setting to make sure that even the coldest room is comfortable, then prevent any overheating in other rooms by adjusting the TRVs.
The time on the programmer must be correct. Some types have to be adjusted in spring and autumn at the changes between Greenwich Mean Time and British Summer Time. Holiday button saves energy by letting you reduce the temperature for 1 to 99 days while you are away from home, resuming normal operation on your return. You may be able to temporarily adjust the heating programme, for example, Override, Advance or Boost. These are explained in the manufacturers instructions.
Programmable room thermostats need a free flow of air to sense the temperature, so they must not be covered by curtains or blocked by furniture. Nearby electric fires, televisions, wall or table lamps may prevent the thermostat from working properly.
Party button lets you temporarily maintain or adjust the current temperature for 1 - 23 hours. Useful when you have guests or leave the house for a short period. Honeywell Control Systems Ltd. Day Off button copies Sundays program into any other day of the week, so that you can make the CM follow this program if you have a day or days off. Built-in Memory holds the user program indefinitely so that it is never lost even if you remove the batteries.
Optimum Start option is an advanced feature which ensures that the optimum temperature conditions are achieved at the required times option set by your installer. An explanation for householders This product and its associated documentation and packaging are protected by various intellectual property rights belonging to Honeywell Inc.
These intellectual and property rights may include patent applications, registered designs, unregistered designs, registered trade marks, unregistered trade marks and copyrights.
Honeywell reserves the right to modify this document, product and functionality without notice. This document replaces any previously issued instructions and is only applicable to the product s described. This product has been designed for applications as described within this document.
For use outside of the scope as described herein, refer to Honeywell for guidance. Honeywell cannot be held responsible for misapplication of the product s described within this document. STEP 1: Installing the Batteries Note: Please follow the instructions in this section only if the thermostat screen is blank no symbols or digits are displayed. To install the Batteries: a. Lift up the front cover of the thermostat to reveal the battery cover and product controls.
Remove the battery cover by pressing down and sliding out. After a short pause the thermostat will display information on the screen and is now ready for use. Replace the battery cover by sliding it firmly back into the front of the thermostat. Move the slider switch to the DATE position. Use the or buttons to set the correct day. Once the correct day is reached, press the green button to confirm.
Change the month and then the year using the or buttons, pressing the green button to save any changes made. If an invalid date has been entered you will be returned to the start of the date setting mode.
Each press of the button will e. Use the change the time by one minute and holding the button down will change the time slowly at first and get progressively quicker.
Move the slider switch to the AUTO position and the built-in heating program will start running. The Built-in Heating Program The built-in heating program has 6 temperature level changes per day that can be set between 3.
Each temperature level can be set between 5C and 35C, and adjusted in 0. The factory default program for heating is as follows: Monday to Friday Period. Reviewing the Heating Program To review or edit the heating program move the slider switch to the PROG position then use the or buttons to navigate between the 6 individual programming periods for Monday.
Use the DAY button to step through each day of the week, so the complete 7 day heating program can be reviewed or edited.
Modifying the Heating Program To change the heating program: a. Set the slider switch to the PROG position, entering programming mode. The active period is highlighted by a flashing square symbol around the numbers at the bottom of the screen and the selected day is flashing in the top left hand corner of the screen. Holding the button down will change the time quickly. Note: If you are pressing the or buttons and the display flashes the next change period, it means the next change will be pushed forward if you continue to press or buttons.
Press the green button to confirm the setting. Note: If the original time setting did not require adjustment press the green button to move on to step d.. The temperature setting for period 1 on Monday MON will now be flashing.
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