Honeywell CM907 7 day Programmable User Guide
- June 7, 2024
- Honeywell
Table of Contents
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CM907 – User Guide
7 day Programmable
Room Thermostat
View all Honeywell thermostat manual
Description
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.
Features
Ergonomic User Interface features an ‘ OK-button ’ making the CM907
very easy to use so you always stay in control.
Dynamic Text Display provides informative ‘on-screen’ feedback and
operational assistance to the user.
Extra Large LCD (Liquid Crystal Display) Screen with Backlight provides
added user-friendliness and clearer viewing – even in the dark.
The 7-day heating program lets you set the CM907 independently for each
day of the week to match your lifestyle, whilst maximizing energy savings.
6 independent temperature levels per day lets you set any 6 temperatures
you require (from 5 to 35°C) so you can enjoy economical comfort every day
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.
The 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.
Day Off button copies Sunday’s program into any other day of the week, so
that you can make the CM907 follow this program if you have a day or days off.
Automatic Summer/Winter Time Change will adjust the clock automatically
for ‘Daylight Saving Time.
Built-in Memory holds the user program indefinitely so that it is never
lost – even if you remove the batteries.
Outside Temperature Sensor (optional accessory) can be fitted to the CM907 to
display the temperature outside your home.
Remote Temperature Sensor (optional accessory) can be fitted to the CM907
to control the room temperature in another location, concealing the CM907.
The optimum Start option is an advanced feature that ensures that the
optimum temperature conditions are achieved at the required times.
Controls Layout
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.
GETTING STARTED WITH THE CM907
This section shows you how to setup and run the thermostat in 3 simple steps:
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). If the screen
displays some information move on to STEP 2: Setting the Date and Time.
To install the Batteries:
a. Lift up the front cover of the thermostat to reveal the battery cover and
product controls.
b. Remove the battery cover by pressing down and sliding out.
c. Insert the 2 x AA LR6 Alkaline Batteries supplied with the thermostat,
ensuring the correct orientation (see ‘ Controls Layout ’ on page 2).
d. After a short pause the thermostat will display information on the screen
and is now ready for use.
e. Replace the battery cover by sliding it firmly back into the front of the
thermostat.
PLEASE RESPECT YOUR ENVIRONMENT!
Take care to dispose of used batteries carefully.
GETTING STARTED WITH THE CM907
STEP 2: Setting the Date and Time
To set the Date and Time:
a. Move the slider switch to the DATE position. ‘SET THE DAY’ will be
displayed on the screen and the day digits will be flashing.
b. Use the or buttons to set the correct day. When either of these buttons is
pressed ‘DAY OK?’ will be displayed. Once the correct day is reached, press
the green button to confirm.
c. Now the month digits will start flashing and ‘SET THE MONTH’ will be
displayed.
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).
d. After setting a valid date, the time digits will begin flashing, and ‘SET
THE TIME’ will be displayed.
e. Use the or buttons to set the correct time. Each press of the button will
change the time by one minute and holding the button down will change the time
slowly at first and get progressively quicker. Once the correct time is set,
press the green button to confirm then ‘CHANGES SAVED’ will be displayed for a
moment followed by ‘DATE COMPLETE’.
Note: If the slider switch is moved at any time before ‘DATE COMPLETE’ is
displayed the changes to the date and time will NOT be saved.
STEP 3: Running the Built-in Heating Program
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’.
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 |
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.
‘SET TIME 1’ will be displayed and the time settings for period 1 on
Monday (MON) will be flashing. 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.
PROGRAMMING THE CM907
b. To adjust the period start time press the or buttons and ‘TIME 1 OK?’ will
be displayed. 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).
c. Press the green button to confirm the setting. ‘CHANGES SAVED’ is displayed
for 1.5 seconds then ‘SET TEMP 1’ will be shown.
Note: If the original time setting did not require adjustment press the green
button to move on to step ‘ d.’.
d. The temperature setting for period 1 on Monday (MOM) will now be flashing.
To adjust this press the or buttons and ‘TEMP 1 OK?’ will be displayed.
e. Press the green button to confirm the setting. ‘CHANGES SAVED’ will be
displayed for a moment followed by ‘SET TIME 2’.
f. The next time and temperature period will now be active. Adjust this by
repeating steps be above until all 6 periods are set for Monday or move the
slider switch to the AUTO position to run the program asset, at any time.
g. After setting period 6 ‘CHANGES SAVED’ will be displayed as before,
followed by ‘DAY COMPLETE’.
You now have a choice of how to set the program for the next day:
h. To COPY the Monday’s program to another day:
Press the COPY DAY button to copy Monday’s program into Tuesday. The
display will go blank apart from ‘ COPY MON TO’, indicating the program
for Monday will be copied to the selected target day, which is flashing in the
top left corner of the display. To select a different target day press the
DAY button to cycle through the days. Once the required day is flashing
accept it by pressing the green button.
Note: Once the target day is confirmed it becomes the day that is copied
if the COPY DAY button is pressed again.
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.
i. 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 , and DAY buttons to navigate, ensuring
the correct period is highlighted with the flashing square symbol. Press and
hold the button for at least 2 seconds and the display will indicate the
period has been removed from the program.
To enable time periods:
Navigate to the disabled period by moving the slider switch to the PROG
position, then using the or and DAY buttons. Once selected ‘DISABLED’ will
be displayed. Press and hold the button for at least 2 seconds and ‘ENABLED’
will be displayed for a moment before returning to normal programming mode.
Choosing the Operating Mode
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.
-
AUTO (automatic) mode
Automatic mode sets the thermostat to follow the temperature program (default or personalised). Operating the thermostat in this mode is the best way to maintain a high level of temperature comfort whilst maximising your energy savings. -
MAN (manual) mode
Manual mode sets the thermostat to act as a simple thermostat with a fixed setpoint throughout the day. The setpoint can be adjusted from 5°C to 35°C by using the or buttons. The thermostat will continue to maintain this temperature until another operating mode or temperature is selected. -
OFF mode
Off mode sets the thermostat to control to a minimum temperature setting of 5°C (default) that acts as a frost protection measure for your home. This value can be adjusted by calling your installer.
During Normal Operation
-
Temperature Enquiry
In AUTO and MAN operating modes the thermostat will display the current room temperature, which is indicated by the text ‘ROOM TEMP’ displayed on the screen. To review the programmed ‘target’ temperature (the temperature which the thermostat is
trying to maintain) press the button. This ‘target’ temperature value will be displayed flashing and the text ‘TARGET TEMP’ will be shown for 5 seconds before returning to the current room temperature value.
In OFF operating mode the thermostat again displays the current room temperature, as above, but when the button is pressed the text ‘FROST TEMP’ is displayed indicating the set value to protect your home. To modify this value please contact your installer. -
Temperature Override
During normal operation ( AUTO mode) the programmed temperature can be adjusted manually by pressing the or buttons. The ‘target‘ temperature will be displayed and flash for 5 seconds – during this time the or buttons can be used to modify the set value.
Note: This temperature override is cancelled at the next programmed temperature change.
Using the Special Functions
- HOLIDAY Function
The holiday function allows you to set a constant temperature (default = 10°C) for a specified number of days (from 1 – 99 days). This lets you save energy and related costs when you are away from home, but resumes normal operation on the day of your return.
To set the Holiday function:
a. Move the slider switch to the AUTO or MAN position.
b. Press the button to display the holiday days counter and temperature
setting, along with the holiday indicator .
c. The day after the current day will be selected and ‘RETURN DATE OK?’ will
be displayed. Press the or time buttons to set the holiday time (1 – 99 days).
Note: (The day and date will update according to the number of days
selected).
d. Press the green button to confirm the setting.
e. ‘CHANGES SAVED’ will be displayed for a moment followed by ‘TEMP OK?’.
Press the or buttons to set the holiday temperature (5°C – 35°C)
f. Press the green button to confirm the setting. ‘HOLIDAY MODE’ will now be
displayed on the screen until the return date is reached or the holiday mode
is cancelled.
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. The thermostat will then
return to normal operation as set by the slider switch position ( AUTO or
MAN position). To cancel the HOLIDAY setting or to exit the function at
any time press the button a second time or move the slider switch to a
different position.
- PARTY 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:
a. Move the slider switch to the AUTO or MAN position.
b. Press the button to display the party hours counter and temperature
setting, along with the party indicator .
c. The text ‘PARTY DURATION’ will now be displayed on the screen. Use the or
buttons to set the number of hours (1 – 23 hours).
d. Press the green button to confirm the setting.
e. ‘CHANGES SAVED’ will be displayed for a moment followed by ‘TEMP OK?’
Use the or buttons to set the desired temperature (5°C – 35°C).
f. Press the green button to confirm the setting. ‘PARTY MODE’ will now be
displayed on the screen until the timer reaches zero or the party mode is
cancelled.
The unit will now control to the new temperature for the set number of hours
then return to normal operation as set by the slider switch position (A U
TO or MAN position). To cancel the PARTY setting or to exit the
function at any time press the button a second time or move the slider switch
to a different position.
- 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:
a. Move the slider switch to the AUTO position.
b. Press the button to display the days off counter, ‘DAYS OFF’ will be displayed and the day off indicator will appear.
c. Press the or buttons to set the number of days (1 – 99 days) you would like the alternative heating program to run for.
Note: (The day and date will update according to the number of days selected).
d. Press the green button to confirm the setting.
e. On confirmation ‘CHANGES SAVED’ will be displayed on the screen for a moment and then will return to the normal display, with the days off indicator displayed.
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 button a second time or move the slider switch to a different position.
Adjusting the Time
To adjust only the time during normal operation use the or buttons to adjust
the time and press the green button again to confirm any changes.
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:
a. Move the slider switch to the OFF position, then press and hold the
button for approximately 5 seconds. button for approximately 5 seconds.
b. Once entered the following information will be shown on the screen:
c. Now choose which one of the following parameters you would like to change:
i) Change the time format
‘CLOCK SELECT’ should be displayed on the screen – press the or buttons to
select the preferred time format (12=AM/PM format, 24=24hr format) and the
display will flash, indicating a change has been made. To confirm this change
press the green button.
ii) Reset the built-in program to the factory default
Press the time button once. The display will show ‘RESET PROGRAM’.
Press the or buttons to select the preferred setting (0=user program,
1=factory program) and the display will flash, indicating a change has been
made. To confirm this change press the green button.
iii) Enable or disable summer/winter time change
Press the time button twice. The display will show ‘AUTO CHANGE’. Press the or
buttons to select the preferred setting (0=disabled/Off, 1=enabled/ On) and
the display will flash, indicating a change has been made. To confirm this
change press the green button.
d. To exit the user mode move the slider switch to the AUTO, MAN or OFF position.
FAQ’s & TROUBLESHOOTING
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 or buttons. This can be set anywhere from 5°C to 35°C in 0.5°C
steps. The thermostat will continue to maintain this temperature until another
operating mode is selected or the temperature is adjusted.
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 or buttons together for 5 seconds in any of the product
operating modes (AUTO, MAN or OFF). The text ‘COOLING’ will be displayed for a
moment on the screen to indicate the cooling operation is now active. The
factory default program for cooling is specified in the table below, but this
can be modified in the same way as the default heating program:
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?
-
Outside Temperature Sensor Accessory
The Outside Temperature Sensor accessory can be fitted to your thermostat to display the outside temperature. By pressing the button twice, the thermostat displays the external temperature. -
Remote Temperature Sensor Accessory
The Remote Temperature Sensor accessory can be fitted to your thermostat to control the temperature of another room where it is inconvenient to locate the thermostat e.g. commercial premises where the public may tamper with the buttons.
Note: For more information on the above accessories please contact your installer.
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 the paper tab has been removed
Incorrect battery orientation| Check that the batteries have been installed in
the correctorientation
Exhausted batteries| Replace with new batteries
CM907 shows a flashing symbol on the LCD screen| 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 symbol on the LCD screen| Fault in CM907| Remove and
re-insert the batteries in the CM907. If the symbol does not clear itself in a
few minutes call the installer
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
42010943-703 R1
© 2005 Honeywell International Inc.
https://thermostat.guide/honeywell/honeywell-home-cm907-programmable- thermostat-user-guide/
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