The Honeywell CMR707 is a programmable room thermostat designed to control your heating system efficiently, providing comfortable temperatures when you are at home and energy savings when you are away. The following instructions explain how to set up, program and operate your Honeywell CMR707 Programmable Room Thermostat.
This section shows you how to setup and run the thermostat in 3 simple steps:
Note: if the ‘Low Battery’ Indicator
To install the Batteries:
To set the Day and Time:
The thermostat is now ready for operation. Press the AUTO button and the built-in heating program will start running. Note: The built-in heating program has been designed to provide normal comfort requirements, but if you want to customise the settings please see the next section ‘Programming the CMR707’.
The Built-in Heating Program
The built-in heating program has 4 temperature level changes per day that can be set between 3.00am and 2.50am the following day – allowing you to maintain the evening temperature after midnight. Each temperature level can be set between 5°C and 35°C, and adjusted in 0.5°C increments. The factory default program for heating is as follows.
Monday to Friday (Day 1 to 5)
Period | 1 | 2 | 3 | 4 |
Time | 6:30 | 8:00 | 18:00 | 22:30 |
Temperature | 21°C | 18°C | 21°C | 16°C |
Saturday & Sunday (Day 6 & 7)
Period | 1 | 2 | 3 | 4 |
Time | 8:00 | 10:00 | 18:00 | 23:00 |
Temperature | 21°C | 21°C | 21°C | 16°C |
To review or edit the heating program use the PROGRAM or buttons to navigate between the 4 individual programming periods for that day. Use the DAY button to step through each day of the week, so the complete 7 day heating program can be reviewed or edited.
To change the heating program:
Disabling / Enabling Time Periods
The thermostat has 4 periods each day that can be programmed, but you may not need all of these switch points for your heating requirements. Therefore, any period from 2 to 4 can be removed from (or returned to) the heating program profile.
To disable or enable time periods:
The thermostat can operate in three different modes: Automatic, Manual or Off. To set the operating mode press either of the AUTO, MAN or OFF buttons. The screen indicates which mode is currently active by displaying AUTO, MAN or OFF.
During Normal Operation
The thermostat will now control to the new temperature for the set number of days that your home is vacant. At midnight the holiday counter will be reduced by one until the selected number of days have passed. Thethermostat will then return to normal operation as set by the MAN or AUTO mode. To cancel the HOLIDAY function or to exit the function at any time press the button
Adjusting the Time
To adjust only the time during normal operation use the
Symptom | Remedy |
Blank Display (Power Loss). | Check batteries are installed by removing the battery cover.
Check batteries have been installed in the correct orientation.
Replace the batteries. |
Display shows a flashing | The batteries in the thermostat are low on power – Replace the batteries. |
Display shows | A fault has occurred in your heating system. Remove and re-insert the batteries.
If the |
When setting my program the following is displayed –:– –.- | The time period has been disabled, to enable see ‘Disabling / Enabling Time Periods’ on page 4 |
The | This may be due to the internal controls of the boiler. |
How do I change the batteries on the thermostat when they run out?
The thermostat constantly monitors the battery power level, which typically lasts for about 2 years before needing to be replaced. When the power is running low a flashing
Note: While changing the batteries your program settings will be stored but you may need to adjust the time settings to be correct.
How do I set one temperature for the whole day?
To operate as a simple thermostat with one temperature throughout the day, select the manual operating mode by pressing the MAN button. Adjust the temperature by pressing the
..an explanation for householders
A programmable room thermostat is both a programmer and a room thermostat. A programmer allows you to set ‘On’ and ‘Off’ time periods to suit your own lifestyle. 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.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.
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 italone to do its job. The best way to do this is to set low temperatures first, say 18°C, and then turn them up by one degree each day until you are comfortable with the temperatures. You won’t have to adjust the thermostat further. Any adjustments above these settings will waste energy and cost you more money.
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 don’t 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. You may be able to temporarily adjust the heating programme, for example, ‘Override’, ‘Advance’or ‘Boost’. These are explained in the manufacturer’s 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.
Download Manual:
Honeywell Home CMR707A1049 Thermostat User Manual
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