User manual HONEYWELL CM900 INSTALLATION GUIDE

[. . . ] Changes to 0 when one of the time/temp profiles are changed. Auto Summer/Winter Time Change LCD Backlighting Upper Temp Limit Lower Temp Limit Optimisation Telephone Override Second Sensor 3:tC 5:bL 6:uL 7:LL 8:OP 9:tS 10:SS 1 1 35 5 0 0 0 Auto Summer/Winter Time Change Enabled Backlighting Enabled 35°C Upper Temp. Limit Optimisation Disabled Telephone Override Disabled Second Sensor Disabled 0 0 21 to 34 5 to 21 1 1 1 or 2 Optional Setting Display 24 0 Description 24 hr clock display format Factory Time / Temperature profile has been modified To restore the factory profile set to 1 Auto Summer/Winter Time Change Disabled Backlighting Disabled 21°C to 34°C adjustment in 1°C steps 5°C to 21°C adjustment in 1°C steps Optimisation Enabled Telephone Override Enabled Second Sensor Enabled: 1 = Outside Sensor 2 = Remote Room Sensor -3°C to +3°C adjustment in 0. 1°C steps 1. 6°C to 3. 0°C adjustment in 0. 1°C steps Settings are as modified above To restore the factory parameters set to 1 Category 1 Parameters - Programmable Thermostat Settings CM900 Installation Guide Programmable Room Thermostat The Honeywell CM900 (CM907 or CM901) is a modern programmable room thermostat based on Honeywell's proven programming philosophy. [. . . ] This product can be used for heating or cooling applications. If you select cooling mode the control algorithm and factory default program will be modified. You can independently modify the heating and cooling profile. This feature moves time automatically on the last Sunday of March and the last Sunday of October. If the thermostat is located in a particularly hot/cold location and cannot be moved because of wiring restrictions then the measured/displayed temperature can be adjusted by +/- 3°C. This is useful if the homeowner wants the reading to match another appliance temperature display. The normal upper temperature limit of 35°C can be reduced to 21°C to save the homeowner energy. The normal lower limit of 5°C can be increased up to 21°C to protect inhabitants from cold. To Enable/Disable This Feature: To enable: Set parameter 8:OP (category 1) to 1. To enable: Set parameter 4:HC (category 2) to 1. To enable: Set parameter 3:tC (category 1) to 1. Set parameter 12:tO (category 1) to the required offset value. 2 3 1 Setting-up the Thermostat Please follow the illustrations detailed on page 1 in sequence to install the thermostat correctly, then refer to the steps below: NOTE: For gas boiler applications, the factory system settings will not need to be changed (for other applications see section `Using the Thermostat for Specific Applications' below). Remove the battery cover and insert the batteries supplied with the unit (2 x AA LR6 Alkaline Batteries). or or Upper/Lower Temperature Limit Set parameter 6:uL (category 1) to the desired upper limit. Set parameter 7:LL (category 1) to the desired lower limit. 2. Move the slider switch to the DATE position. [. . . ] The table below lists the most common settings used for a specific application: Remote Temperature Sensor A Remote Temperature Sensor can be fitted to the thermostat, allowing it to control the temperature from another room e. g. in commercial premises where the public may adjust keys. Specific Application: Setting: Cycle/Hour Minimum ON Time 1 4 1 1 1 What to change: Note: All parameters listed below belong to category 2 - System Parameters (see Installer Parameters Table) No changes required Set 1:Ot parameter to 4 Set 2:Cr parameter to 3 Set 2:Cr parameter to 12 No changes required Set 2:Cr parameter to 12 Set 3:EH parameter to 1 To enable switching between cooling and heating modes adjust parameter 4:HC in category 2 (0 = disabled, 1 = enabled). Now you can switch between these modes by and buttons together for 5 seconds in pressing the any of the product operating modes (AUTO, MAN or OFF). [. . . ]