OPERATION MANUAL Room thermostat EKRTW
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EKRTW Room thermostat Operation manual THANK YOU FOR PURCHASING THIS THERMOSTAT. READ THE MANUAL ATTENTIVELY BEFORE USING THE INSTALLATION. AFTER READING THE MANUAL, STORE IT IN A SAFE PLACE FOR FUTURE USE. WARNINGS ■ Never let the thermostat get wet, this may cause an electric shock or fire. ■ Never press the buttons of the thermostat with a hard, pointed object. The thermostat may be damaged. ■ Never inspect or service the thermostat yourself, ask a qualified service person to do this. Contents 1.
1. Main features The EKRTW is a state of the art programmable electronic thermostat, which regulates your AD system, where comfort, simplicity and energy saving go hand in hand. It is the wired room thermostat option kit, mainly used for new installations. The main features are: ■ Room temperature control, based on the measurements of the internal sensor. ■ Cooling and heating mode (with possibility to disable cooling function if not required). ■ Off function (with integrated frost protection).
2. Buttons on front cover and LCD Refer to figure 1 at the inside of the front cover. 1 Left and right buttons (< and >). Used to select modes. 2 Up and down buttons (+ or -). Used to change values. 3 OK - Schedule timer button (=). Used to: - confirm setpoints or save selections - enable/disable locked schedule timer 4 LCD Refer to figure 2 at the inside of the front cover.
19 When manually overriding a schedule or when consulting the active scheduled setpoints by pressing + or -, the current and next setpoint together with the starting hour of the next action are displayed. • • • t is shown in case the next action setpoint goes up. u is shown in case the next action setpoint goes down. tu is shown in case the setpoints are equal.
3. Getting started 3.1. Setting the clock and date After installation you first need to set the clock before you can actually use the thermostat. 1 2 Activate the advanced mode by pressing > during 5 seconds in OFF mode (D). Refer also to "Description of the function modes and menus" on page 6. Navigate to the date and clock setting menu (G) by pressing > and then press =. 3 Set the hour, minutes, day of the week (& = Monday, I = Tuesday,...
4. Description of the function modes and menus 4.1. Modes in the standard menu A B C D Press < or > to switch to the desired mode. The z cursor will move. Icon Description A Comfort mode. Use this mode for a fixed temperature on comfort level (comfort setpoint default on 21.0°C in heating mode, 24.0°C in cooling mode). B Schedule timer mode. Use this mode to let your installation be controlled by the schedule timer.
5. Using the thermostat 5.1. Using the key lock function k Activate or deactivate the key lock function by pressing + and - at the same time. 5.2. Activating the schedule timer For full comfort with limitation of energy consumption you can pick an ideal schedule for each day. This makes sure the temperature is in the comfort mode when you are at home and that the temperature is automatically reduced at times you are sleeping, at work and so on.
5.3. Manually overriding a schedule There are 2 ways of overriding a schedule: ■ A temporary override in locked schedule timer mode (S) Temporarily choose the comfort or reduced setpoint by pressing 1 button only: < or >. The cursor “Y” will move. • comfort setpoint: q and h are displayed. • reduced setpoint: w and h are displayed. ■ A temporary override of the setpoint in schedule timer mode Press + or - to modify the setpoint in steps of 0.5°C.
Setting up a user-defined schedule (◊1 and ◊2) 5.4. Within the user-defined schedule each day can be programmed individually and 12 actions (setpoints) are possible per day. ■ First decide upon the temperature scale you prefer (°C/°F) by setting up code 1® 01 as decribed in "Setting up codes in the user menu" on page 12. ■ At all times you can press < to go back 1 step. Pressing > goes to the next step. 1 If needed, activate the advanced mode by pressing > during 5 seconds in OFF mode (D).
8 Press + or - to adjust the end time of this action. Programming a day is finished when the end time of the last scheduled action is set to 23:59. You can quickly set the time to 23:59 by pressing >. 9 Press = to confirm. 10 Repeat step 6 till 9 for the next scheduled actions of this day. 11 To program the remaining days, repeat above steps. Do this for all days of the week. NOTE Once programmed you can only modify programmed actions one by one and no additional actions can be added.
5.5. Using the holiday mode Use the holiday mode to set a fixed setpoint during a long absence. The default holiday setpoint for heating is 14°C, for cooling 30°C. 1 If needed, activate the advanced mode by pressing > during 5 seconds in OFF mode (D). 2 Press > to navigate to holiday mode (E). 3 Press + or - to adjust the duration (È = hours, ∂ = days). To exit the holiday mode, set the duration to "?". 4 Press = to confirm. 5 Press + or - to adjust the holiday setpoint.
6. Setting up codes in the user menu NOTE As a consequence of a customized configuration, it is not abnormal that some codes are no longer accessible. 1 Activate the advanced mode by pressing > during 5 seconds in OFF mode (D). 2 Navigate to the date and clock setting menu (G) by pressing >. 3 Press > during 5 seconds. y is displayed next to 1®. 4 Press < or > to consult the current settings of the codes. 5 To modify codes, press +, - or =.
Following codes can be consulted or changed in the user menu: 1st 2nd code code 1® Description 01 + R Degrees type. Default Range Step °© °©/°ƒ — Current room temperature is displayed. Refer also to note below. 2® 3® 02 Choice of hour 24È control. Actual time is displayed. 12È/24È — 03 Always enable advanced menu? (≈œ = standard menu enabled) ≈œ ÚêÒ/≈œ — 01 Enable comfort startup control? ≈œ ÚêÒ/≈œ — 02 Comfort control speed: time for temp. difference of 4°.
NOTE ■ In case the 1® 01 code is modified after having user-defined schedules programmed, the ◊1 and ◊2 user-defined schedules are cleared. ■ Code 2® 02: Refer to diagram below clarification of the comfort control speed.
7. Troubleshooting The guidelines below might help to solve your problem. If you cannot remedy the problem, consult your installer. 7.1. No readings on the LCD (display blank) Batteries are empty. Replace batteries. Refer to "Replacing batteries" on page 16. 7.2. Buttons on front cover do not react If k is flashing when pressing a button on the front cover it means the key lock is activated. Press + and - at the same time to deactivate it. 7.3.
8. Maintenance 8.1. Replacing batteries When the “low battery” icon r flashes, batteries need to be replaced. Once the icon flashes, you still have ±30 days to replace them before the thermostat completely shuts down. With normal operation conditions the battery lifetime is ±2 years. 1 At the left of the thermostat, gently push the lid. 2 Remove the front cover by pulling it towards you. 3 Remove the old batteries and insert new ones. 4 Put the thermostat cover back in place until it clicks.
9. APPENDIX: factory-defined programs There are 5 factory-defined programs (π1~π5) for standard situations. If none of them matches your needs, create a custom one (refer to "Setting up a user-defined schedule" on page 9). The comfort setpoint can be changed in the comfort mode A, the reduced setpoint can be changed in the reduced mode C.
NOTES
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