The Honeywell CM907 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 program and use the CM907 to provide the most home comfort at the least cost.
1. Day / Date Display 2. Time Display 3. Dynamic Text Display 4. Heating On Indicator 5. Battery Low Indicator 6. Temperature Display 7. Temperature Change Buttons 8. Temperature Enquiry Button 9. Slider Switch 10. Green OK Button | 11. Program Buttons 12. Battery Compartment Lid 13. Battery Compartment 14. Holiday Function Button 15. Party Function Button 16. Day Off Function Button 17. Copy Day Button 18. Day Select Button 19. Time Change Buttons |
WHAT IS A PROGRAMMABLE ROOM THERMOSTAT?
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 program, 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.
Manufactured for and on behalf of the Environment and Combustion Controls Division of Honeywell Technologies Sàrl, Ecublens, Route du Bois 37, Switzerland by its Authorised Representative Honeywell International Inc.
This section shows you how to set up and run the thermostat in 3 simple steps:
Note: Please follow the instructions in this section only if the thermostat screen is blank (no symbols or digits are displayed). If the screen displays some information move on to STEP 2: Setting the Date and Time.
To install the Batteries:
To set the Date and Time:
The thermostat is now ready for operation. Move the slider switch to the AUTO position and the built-in heating program will start running. The built-in heating program has been designed to provide normal comfort requirements, but if you want to customize the default settings (as shown on the next page) please see the next section ‘PROGRAMMING THE CM907’.
The Built-in Heating Program
The built-in heating program has 6 temperature level changes per day that can be set between 3.00 am and 2.50 am 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
0091 | 001-3 | 001-3 | 043 | 0013 | 001-3 | OA niwadwai |
00:83 | 0081- | 00:171- | 00:31- | 0001- | 00:9 | awa |
9 | 9 | P | E | Z | I. | popad |
Aepung 72 Aeparges
0091 | 043 | 0091 | 043 | 0081 | 0013 | al nmedwai |
08:33 | 0081- | 00:14 | 00:31- | 00:8 | 08:9 | ami |
9 | 9 | P | E | Z | I. | popad |
To review or edit the heating program move the slider switch to the PROG position then use the
To change the heating program:
OR
To program a different day:
Press the DAY button to select the next day, which is displayed in the top left corner of the display. The program for that day can then be adjusted by following steps b – g above. Programs for the remaining days can be set in the same way, using the DAY button to move to the next day.
To exit the programming mode move the slider switch to the desired operating mode – AUTO, MAN or OFF. Note: To run the adjusted program select the AUTO mode.
Note: If the unit is left in programming mode for more than 10 minutes without the slider being moved or any buttons pressed, ‘MOVE THE SLIDER’ will be displayed. Press a button to finish programming the thermostat or move the slider to select the desired operating mode.
Disabling / Enabling Time Periods
The thermostat has 6 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 6 can be disabled or enabled as follows:
To disable time periods:
Go to the desired period ( 2 to 6 ) by moving the slider switch to the PROG position, then using the
To enable time periods:
Navigate to the disabled period by moving the slider switch to the PROG position, then using the
The thermostat can operate in three different modes: Automatic, Manual or Off. To set the operating mode move the slider switch to the desired position. The screen indicates which mode is currently active by displaying AUTO, MAN or OFF.
To set the Holiday function:
The party function allows you to extend your heating program by a specified number of hours at a particular temperature before resuming with the normal temperature program. This is especially useful when you want to maintain or increase the temperature during a special occasion such as a party or when entertaining guests.
This function can also be used to reduce the temperature when you leave the house for a short period (shopping, visiting friends, etc) thus saving energy and saving you money.
To set the Party function:
DAY OFF FUNCTION
The day off function allows you to temporarily run Sunday’s heating program for as many days as you desire. This is useful when you have a day off during your normal week or will, unintentionally, be at home on a workday due to illness, etc.
To set the Day Off function:
The thermostat will now control to the alternative heating program for the set number of days before resuming with the normal heating program. To cancel the DAY OFF mode or to exit the function at any time press the
Adjusting the Time
To adjust only the time during normal operation use the
Changing the User Parameters
The user mode allows you to modify some basic settings of the thermostat to meet your personal preferences. You can change the time display format (24hr or AM/PM), reset the heating program to the built-in settings and disable or enable the summer/ winter time change feature.
To change any of these user’s parameters:
Change the time format
‘CLOCK SELECT’ should be displayed on the screen – press the
Reset the built-in program to the factory default
Press the
Press the
Enable or disable summer/winter time change
Press the
To exit the user mode move the slider switch to the AUTO, MAN or OFF position.
How do I change the batteries on the CM907 when they run out?
The thermostat constantly monitors the battery power level, which typically last for about 2 years before needing replaced. When the power is running low a flashing symbol will be displayed on the screen. To change the batteries follow the steps in the above section (‘STEP 1: Installing the Batteries’ on page 3), replacing the used batteries with new ones in step c.
Note: While changing the batteries your program settings will be stored but you may need to adjust the time and date settings to be correct.
How do I set one temperature for the whole day?
To operate as a simple thermostat with one temperature for a period of time, move the slider switch to the MAN position. Adjust the manual temperature by pressing the
What is Optimum Start?
Optimum Start is a program which ensures that the optimum temperature conditions are achieved at the required times. This is an Energy Efficiency feature that adjusts the start time of your heating system depending upon how cold it is. For example, on cold days your heating system will be started earlier to ensure that your home is warm when you get up (at the target temperature) and on warmer days the eating
system will be started later to save energy. So, if the Optimum Start Feature is used, then the time / temperature settings which are entered into the thermostat should be set to when you want to be warm by and not when you want the heating system to start.
Can I use my CM907 to control my air-conditioning system?
Yes, if your system has been set up correctly you can use your thermostat to control the cooling. To switch the thermostat between heating and cooling modes press the
Monday to Friday
00173 | 00173 | 00i7–3 | 00173 | 00173 | Oct? | alniwadwai |
00:83 | 0081- | 00:171- | 00:31- | 0001- | 00:8 | mu. |
9 | 2 | P | E | Z | L | poped |
Aepuns Ig AepinleS
00173 | 00173 | 0093 | 00173 | 0083 | 00173 | alniwadwai |
08:33 | 0081- | 00:171- | 00:31- | 00:8 | 08:9 | ami |
9 | 5 | P | E | Z | L | popad |
If something happens to my heating system how can I check that the thermostat is working?
Refer to the Troubleshooting Guide on page 17. If you still need assistance after this call your installer. The thermostat should only be opened or removed by a qualified professional to prevent possible injury from electric shock and/or damage to the product.
What other accessories can I buy that work with the CM907?
Symptom | Possible Cause | Remedy |
CM907 has a blank LCD screen | Batteries not installed | Check to see if there are batteries in the battery compartment and if the paper tab has been removed |
Incorrect battery orientation | Check that the batteries have been installed in the correct orientation | |
Exhausted batteries | Replace with new batteries | |
CM907 shows a flashing | Batteries are exhausted and need replacing | Replace with new batteries |
The CM907’s LCD screen works but the heating does not switch on | 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 i ID or to increase the temperature a few degrees above the current room temperature. The heating should come on after a few seconds. | |
CM907 not connected to boiler properly | Call installer to check electrical connection between the CM907and the boiler. | |
Heating switches ON or OFF too slowly or quickly | CM907 not set correctly for your system | Call Installer |
Temperature swings between too hot and too cold. | CM907 not set correctly for your system | Call Installer |
CM907 shows a flashing | Fault in CM907 | Remove and re-insert the batteries in the CM907. If the |
WHAT IS A PROGRAMMABLE ROOM THERMOSTAT?
…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 it alone 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.
Honeywell Control Systems Ltd.
Arlington Business Park,
Bracknell
Berkshire
RG12 1EB
Technical Help Desk: 08457 678999
www.honeywelluk.com
Download Manual:
Honeywell CM907 7-day Programmable User Guide
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Honeywell Home CM907 Programmable Thermostat PRODUCT SPECIFICATION SHEET
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