Honeywell CM921 User Manual

pRoGRAMMING THE CM921

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

buttons).

c. Press the green

button to conirm 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

will now be lashing. To adjust this press the

buttons and ‘TEMP 1 OK?’ will be displayed.

e. Press the green

button to conirm 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 b - e above until all 6 periods are set or move the slider switch to the AUTO
position to run the program as set, at any time.

g. After setting period

‘CHANGES SAVED’ will be displayed as before.

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.