Honeywell CM901- Manuals

Page 2 - Contents; GETTING STARTED WITH THE CM901; Controls Layout

Contents GETTING STARTED WITH THE CM901 STEP 1: Installing the Batteries ......................................... 3 STEP 2: Setting the Date and Time................................... 4 STEP 3: Running the Built-In Heating Program ................ 4 PROGRAMMING THE CM901 The Built-in Heating Progr...

Page 3 - STEP 1: Installing the Batteries; move on to; To install the Batteries:

3 This section shows you how to setup and run the thermostat in 3 simple steps: STEP 1: Installing the Batteries Note: Please follow the instructions in this section only if the thermostat screen is blank (no symbols or digits are displayed). If the screen displays some information move on to STEP 2...

Page 4 - STEP 2: Setting the Date and Time; To set the Date and Time:; the changes to the date and time will NOT be saved.; STEP 3: Running the Built-in Heating Program

4 5 STEP 2: Setting the Date and Time To set the Date and Time: a. Move the slider switch to the DATE position. ‘SET THE DAY’ will be displayed on the screen and the day digits will be flashing. b. Use the or buttons to set the correct day. When either of these buttons are pressed ‘DAY OK?’ will be ...

Page 5 - PROGRAMMING THE CM901; The Built-in Heating Program; Modifying the Heating Program; PROG

4 5 PROGRAMMING THE CM901 The Built-in Heating Program The built-in heating program has 6 temperature level changes that can be set between 3.00am and 2.50am - allowing you to maintain the evening temperature after midnight. Each temperature level can be set between 5°C and 35°C, and adjusted in 0.5...

Page 6 - If you are pressing the or buttons and the display flashes the next; To run the adjusted program select the

6 7 PROGRAMMING THE CM901 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...

Page 7 - Disabling / Enabling Time Periods; To disable time periods:

6 7 PROGRAMMING THE CM901 Disabling / Enabling Time Periods The thermostat has 6 periods that can be programmed, but you may not need all of these switch points for your heating requirements. Therefore, any period from 2 to 6 can be disabled or enabled as follows: To disable time periods: Go to the ...

Page 9 - This temperature override is cancelled at the next programmed; Using the Special Functions; (The day and date will update according to the number of days

8 9 OPERATING THE CM901 • Temperature Override During normal operation ( AUTO mode) the programmed temperature can be adjusted manually by pressing the or buttons. The ‘target‘ temperature will be displayed and flash for 5 seconds – during this time the or buttons can be used to modify the set value...

Page 10 - FINE TUNING THE CM901; Changing the User Parameters; winter time change feature.; To change any of these user’s parameters:; Move the slider switch to the; position, then press and hold the button for

10 11 FINE TUNING THE CM901 Changing the User Parameters The user mode allows you to modify some basic settings of the thermostat to meet your personal preferences. You can change the time display format (24hr or AM/PM), reset the heating program to the built-in settings and disable or enable the su...

Page 12 - batteries with new ones in step; How do I set one temperature for the whole day?; the slider switch to the; MAN; position. Adjust the manual temperature by pressing the; What is Optimum Start?; FAQ’s & TROUBLESHOOTING

12 13 How do I change the batteries on the CM901 when they run out? The thermostat constantly monitors the battery power level, which typically last for about 2 years before needing replaced. When the power is running low a flashing symbol will be displayed on the screen. To change the batteries fol...

Page 13 - Can I use my CM901 to control my air-conditioning system?; or; ). The text ‘COOLING’ will be displayed for a moment on the; Period

12 13 FAQ’s & TROUBLESHOOTING Can I use my CM901 to control my air-conditioning system? Yes, if your system has been set up correctly you can use your thermostat to control the cooling. To switch the thermostat between heating and cooling modes press the or buttons together for 5 seconds in any ...

Page 14 - displays the external temperature.; Remote Temperature Sensor Accessory

14 15 FAQ’s & TROUBLESHOOTING What other accessories can I buy that work with the CM901?1. Outside Temperature Sensor Accessory The Outside Temperature Sensor accessory can be fitted to your thermostat to display the outside temperature. By pressing the button twice, the thermostat displays the ...

Page 15 - Symptom; ossib

14 15 Tr oub leshooting Guide Symptom CM901 has a blank LCD scr een CM901 shows a flashing symbol on the LCD scr een The CM901’ s LCD scr een works but the heating does not switch on Heating switches ON or OFF too slowly or quickly Temperatur e swings between too hot and too cold. CM901 shows a flas...

Page 16 - WHAT IS A PROGRAMMABLE ROOM THERMOSTAT?

16 17 ...an explanation for householders A programmable room thermostat is both a programmer and a room thermostat. A programmer allows you to set ‘On’ and ‘Off’ time periods to suit your own lifestyle. A room thermostat works by sensing the air temperature, switching on the heating when the air tem...