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How can I switch the CM61 off?

Press the 

OFF button. The unit has an intelligent built-in frost protection 

feature, so that if the temperature falls below 5°C, it will automatically 
switch the heating on.

How do change the batteries?

With no other accessories fitted and for applications other than electric 
heating, the batteries should last about 4 years. 
When  the  batteries  need  replacing,  a  flashing 

  symbol  will  be 

displayed.
To change the batteries:
1.   Lift up the front flap to reveal the battery compartment. Open the 

battery compartment by inserting a coin underneath the bottom right 
edge of the flap and lift out.

2.   Replace the used batteries with 2 new AA LR6 Alkaline Batteries and 

push the battery compartment firmly back into the front of the unit.

RESPECT YOUR ENVIRONMENT!
Take care to dispose of used batteries carefully.

NOTE: If you take more than one minute to change the batteries the clock 
may need to be reset - see 

How do I adjust the time?

Can I use my CM61 to control my air-conditioning 
system?

Yes. Please refer to your installer for more information.

What does 'SERVICE' on the display of my CM61 
mean (optional)?

NOTE: This option only works if activated by your installer.
The '

SERVICE' indicator is displayed at set intervals as a reminder that 

your heating system requires a routine check. Please call your installer 
to arrange a maintenance visit.

The symbol will remain on the display of the CM61 until it is either reset 
or disabled by your installer. The CM61 and heating system will continue 
to operate as normal.

How do I set the time?

The time can be set with the CM61 in the 

AUTOMAN or OFF operating 

modes. Press    

+ or - until the correct time is displayed. Each button 

press will change the time by one minute. Holding the button down for a 
few seconds will change the time slowly at first, then quickly. Make sure 
AM or PM is correct.

How do I get started with the factory default tem-
perature program?

Press the 

AUTO button. The CM61 will now control your heating using 

the built-in temperature program:-

3.   Press 

TEMP 

 or 

 to adjust the first temperature level. Holding 

the button down will change the temperature quickly. The temperature 
can be set in 0.5°C steps from 5°C to 30°C.

4.   Press

  PROG  2  to  display  the  second  temperature  level  and  time 

levels. Set these by pressing   

+ or - and TEMP 

 or 

5.   The remaining temperature changes can be displayed by pressing 

PROG buttons 3, 4, 5 and  6 and adjusted by using   + or - and  
TEMP
   or  . (If you don’t want to use all the temperature change 
times 2, 3, 4, 5 or 6 refer to the section “What if I don’t want to use 
all 6 temperature change times?”).

6.   Press 

AUTO when you have completed your programming, The CM61 

will now control the room temperature to match your program.

What  if  I  don’t  want  to  use  all  6  temperature 
change times?

Although the CM61 has up to 6 temperature / time changes available 
(

PROG 1 – 6), any unused settings may be deleted by holding down the 

appropriate button (

PROG 2 – 6) for 2 seconds.

To  reinstate  any  deleted  setting  hold  down  the  button  again  for  2 
seconds.

Can I change the programmed temperature for a 
short time?

When  the  CM61

  is  in  AUTO  mode  (display  will  show  “AUTO”)  the 

temperature can be adjusted temporarily by pressing 

TEMP 

 or 

. The  temperature  will  return  to  the  program  at  the  next  temperature 
change time.

How do I check the programmed temperature?

In  normal  operation  the  temperature  displayed  is  the  actual  room 
temperature. To  check  the  programmed  temperature  press    and  the 
display  will  show  the  programmed  temperature  with  the  two  small 
arrows.

How do I set one temperature for the whole day?

To operate as a simple thermostat with one temperature throughout the 
day, press 

MAN. Adjust the manual temperature by pressing TEMP 

 

or 

. The manual temperature can be set anywhere from 5°C to 30°C 

in 0.5°C steps.

I am going on holiday for a few days. How do I 
save energy but ensure that the house is warm 
when I return?

1.   Make sure the CM61 is in 

AUTO or MAN mode.

2.   Press 

  (HOLIDAY)  to  display  the  holiday  days  counter  and 

temperature.

3.   Press   

+ or - to set the holiday time (1 - 99 days).

4.   Press 

TEMP 

 or 

 to set the holiday temperature (5°C - 30°C). 

 
The unit will control to the new temperature for the set number of days 
holiday. At midnight the holiday counter will be reduced by one until the 
selected number of days have passed. The unit will then return to normal 
control as set by the 

MAN or AUTO button.

To cancel the 

HOLIDAY setting, press the 

 button a second time.

CM61 Controls/Display Layout

The  diagram  below  details  the  key  button  functions  and  display 
information.

PM

What other accessories can I buy that work with 
the CM61?

Honeywell provides other accessories and “Add-On” modules that can 
be used with your CM61, ask your installer for details :

1.   Automatic Time Setting (ATS) “Add-On” Module *

The ATS module picks up a daily time signal from a transmitter in Central 
Europe and corrects the time on the CM61 display. So:

 •

   You never need to set or adjust the time

 •

   There is no need to adjust the unit by -/+ 1 hour in summer / winter 

since the unit does this automatically 

 •

   Your CM61 is the most accurate clock in your home, so you can use 

this information to set-up all your other clocks.

* Not available in all Geographic Regions depending on transmitter range 
and home location.

2.   Outside Temperature Sensor Accessory

The Outside Temperature Sensor accessory can be fitted to your CM61 
to display the outside temperature. By pressing the

   twice, the CM61 

displays the external temperature.

3.   Remote Temperature Sensor Accessory

 

 

 

 

 

 

 

The Remote Temperature Sensor accessory can be fitted to your CM61 

to control the temperature of another room where it is inconvenient to 

locate the CM61 e.g.   commercial premises where the public may adjust 

buttons.

Daily
Program 

6

Time 

6:30 

8:00 

12:00 

2:00 

6:00 

10:30

Temperature  21°C 

18°C 

21°C 

18°C 

21°C 

16°C

1

2

3

4

5

6

Battery Low 

Indicator

Time Display

Burner on 

Indicator

Temperature 
Change Buttons

 = increase
 = decrease

Information
Enquiry 
Button

Temperature 

Display

Holiday Button

Off Button

Manual Function 

Button

Battery
Compartment

Time 

Change 

Buttons

Program

Buttons

Automatic

Function

Button

TEMP

AUTO

MAN

OFF

1

2

3

4

5

6

PROG

EXT

CM61 Display Backlight

The CM61 has a backlit display that will illuminate when a button is pressed 
for easier viewing of the display in low light conditions. After the last button 
press the backlight will remain on for 7 seconds.

SERVICE

How  do  I  set  my  own  daily  temperature
program?

1.   Press 

PROG 1. The first temperature change time and temperature 

level  will  flash  to  indicate  they  can  be  changed.  (the  two  small 
arrows are displayed only when the programmed temperature level 
is shown). 

2.   Press    

+ or - to adjust the first temperature change time. Holding 

the button down will change the time quickly. The change time can be 
set in 10 minute steps from 03:00 in the morning. The change time 
can be adjusted up to 02:50 on the next morning, so you can maintain 
the evening temperature after midnight. 

      (Note: If you attempt to move a change time past the next change 

time, both times will be moved).

3.   Press 

TEMP 

 or 

 to adjust the first temperature level. Holding 

the button down will change the temperature quickly. The temperature 
can be set in 0.5°C steps from 5°C to 30°C.

1

2

3

4

5

6

 

 

 

Summary of Contents for CM61

Page 1: ...to 99 days while you are on holiday returning to normal operation on the day you return Memory holds the user program indefinitely so that it is never lost even if you take the batteries out Outside Temperature Sensor optional accessory can be fitted to the CM61 to display the outside temperature Remote Temperature Sensor optional accessory can be fitted to the CM61 to control the temperature from...

Page 2: ...ge Buttons Program Buttons Automatic Function Button TEMP AUTO MAN OFF 1 2 3 4 5 6 PROG CM61 Display Backlight The CM61 has a backlit display that will illuminate when a button is pressed for easier viewing of the display in low light conditions After the last button press the backlight will remain on for 7 seconds How do I set my own daily temperature program 1 Press PROG 1 The first temperature ...

Page 3: ...AUTO the temperature can be adjusted temporarily by pressing TEMP or The temperature will return to the program at the next temperature change time How do I check the programmed temperature In normal operation the temperature displayed is the actual room temperature To check the programmed temperature press and the display will show the programmed temperature with the two small arrows How do I set...

Page 4: ...aline Batteries and push the battery compartment firmly back into the front of the unit RESPECT YOUR ENVIRONMENT Take care to dispose of used batteries carefully NOTE If you take more than one minute to change the batteries the clock may need to be reset see How do I adjust the time Can I use my CM61 to control my air conditioning system Yes Please refer to your installer for more information What...

Page 5: ...tomatically Your CM61 is the most accurate clock in your home so you can use this information to set up all your other clocks Not available in all Geographic Regions depending on transmitter range and home location 2 Outside Temperature Sensor Accessory The Outside Temperature Sensor accessory can be fitted to your CM61 to display the outside temperature By pressing the twice the CM61 displays the...

Page 6: ...ientation Replace batteries Remove battery cartridge and re insert Change the batteries as described previously Check that there is power to the system Press TEMP to increase the temperature a few degrees above the current room temperature The heating should come on after a few seconds Call installer to check electrical connection between the CM61 and the boiler Call installer Call installer Remov...

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