User manual HONEYWELL CM907

[. . . ] 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. [. . . ] 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 button. Once the required day is flashing accept it by pressing the green 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. 6 PROGRAMMING THE CM907 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. To modify this value please contact your installer. 8 OPERATING THE CM907 · Temperature Override During normal operation (AUTO mode) the programmed temperature can be or buttons. The `target` temperature adjusted manually by pressing the or buttons will be displayed and flash for 5 seconds ­ during this time the 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. Move the slider switch to the AUTO or MAN position. button to display the holiday days counter and temperature b. setting, along with the holiday indicator c. The day after the current day will be selected and `RETURN DATE OK?' will be or time buttons to set the holiday time (1 ­ 99 days). Press the Note: (The day and date will update according to the number of days selected). Press the green button to confirm the setting. e. `CHANGES SAVED' will be displayed for a moment followed by `TEMP OK?'. or buttons to set the holiday temperature (5°C - 35°C) Press the f. button to confirm the setting. `HOLIDAY MODE' will now Press the green 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. [. . . ] 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. 16 Troubleshooting Guide Possible Cause Batteries not installed Incorrect battery orientation Exhausted batteries Batteries are exhausted and need replacing No power to heating system Program does not call for heat Replace with new batteries Check that there is power to the heating system. Replace with new batteries Remedy Check to see if there are batteries in the battery compartment and the paper tab has been removed Check that the batteries have been installed in the correctorientation Symptom CM907 has a blank LCD screen CM907 shows a flashing symbol on the LCD screen The CM907's LCD screen works but the heating does not switch on or to Move the slider switch to MAN and press increase the temperature a few degrees above the current room temperature. [. . . ]