Honeywell CM921 User Manual

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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.

Honeywell CM921 Specifications

General

Type	Programmable Thermostat
Display	LCD
Programming	7-day programmable
Power Source	2 x AA batteries
Temperature Range	5°C to 35°C
Mounting	Wall-mounted
Voltage	230V
Frequency	50 Hz
Accuracy	±0.5°C
Control Mode	Heating
Backup	Battery backup