Move the slider to the AUTO position for automatic operation. The Thermostat will now control the programmed temperature levels.
TEMPERATURE INQUIRY
In normal operation, the temperature displayed is room temperature. To check the program setpoint, Press the TEMPerature button. The display will
blank briefly then display the temperature setpoint.
TEMPERATURE OVERRIDE
During normal operation, the temperature setpoint can be adjusted temporarily by pressing the Temperature or button. The temperature override will be canceled at the next setpoint change.
MANUAL OPERATION
To operate as a simple thermostat with a fixed setpoint throughout the day, move the slider, to the MANual position. Adjust the manual temperature setpoint by pressing the TEMPerature button.
FROST PROTECTION (heating systems only)
If your home is to be unoccupied for long periods you can select frost protection. This will protect your home by bringing the heating on if the room temperature falls to the frost setpoint. Move the slider to the position. The Frost setpoint can be adjusted between 5°C and 10°C by pressing the TEMPerature
FROST PROTECTION (heating systems only)
If your home is to be unoccupied for long periods you can select frost protection. This will protect your home by bringing the heating on if the room temperature falls to the frost setpoint. Move the slider to the position
HOLIDAY OPERATION
When you go away on holiday your Thermostat can be set to keep your home at a constant low temperature while you are away and return to normal control on the day you return. Set the slider to the operating position you require on returning from holiday (AUTOmatic or MANual). Press the button
button. 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 control as set by the slider position.
HEATING/COOLING CHANGEOVER (air systems only)
In air conditioning systems where it is possible to change from heating to cooling the Thermostat control action can also be changed. To change the control action, hold down the TEMPerature
24-HOUR or 12 HOUR AM/PM CLOCK DISPLAY
Your Thermostat can operate with 24-hour or 12-hour am/pm clock formats. To change the format, ensure the slider is in the AUTOmatic position then press+ the buttons- together for 3 seconds. All the displayed times will automatically be changed to the new format. Repeating this procedure will change the clock display back to the original format.
SETTING THE CORRECT TIME AND DAY
To set the correct time and day, open the flap on the front of the Thermostat.
STEP I
Move the slider to the DAY/
STEP 2
To change the time, press the
STEP 3
To change the day, press the DAY button until the day marker is positioned under the correct day – Day 1 is Monday. Each press of the button moves the marker by one day.
STEP 4
Moving the slider to the next position completes the setting of the time and day.
SETTING THE TEMPERATURE PROGRAM
The heating program has 6 level changes each day. These can be set between 3.00 am and 2.50 am (on the next day) to allow you to maintain the evening
temperature after midnight if required. Each temperature setpoint can be set between 5°C and 30°C, and adjusted in 0.5°C steps.
STEP 5
Move the slider to the PROGRAM position. The first temperature change time and setpoint for Monday will now be flashing on the display to indicate they
can be changed.
STEP 6
Use the
STEP 7
Use the TEMPerature
STEP 8
Press the program button to display the second temperature change time and setpoint. Set these by pressing
STEP 9
The remaining temperature changes for Monday can be displayed by
STEP 10
You now have a choice to set the program for the next day:-
Choice 1
Press the DAY button to stop the day marker to DAY The program for Tuesday can then be set as described in steps 6 to 9.
Choice 2
Press the COPY button to copy Monday’s program into Tuesday. To set several days of the week to the same program, press the COPY button repeatedly.
NOTES
REVIEWING YOUR PROGRAM
By using the DAY and program to buttons you can review the program you have set and make any modifications that may be necessary Moving the slider to the next position completes the setting of the program.
Download Manual:
Honeywell CM27i Programmable Thermostat User Guide
OTHER MANUALS:
HONEYWELL CM27i Programming Thermostat User Manual
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