Comfortheat MCD4 Programmable Thermostat
Introduction
The thermostat can switch on your heating system at predetermined times on different days of the week. For each day of the week, you can set individual temperatures for 4 different periods, called events. Lowering the temperature when the home is unoccupied will reduce your energy costs without reducing comfort. The thermostat comes with a default schedule suitable for most homes. Unless you change the settings, the thermostat will operate in compliance with the default schedule. Furthermore, the thermostat features an adaptive function that automatically changes heating period start times so as to ensure that the required temperature is reached at the set time. After three days the adaptive function has learned when the heating must be switched on.
First-time settings
- The first time you switch the interrupter ON “I”, language, time and date must be set. The menu will automatically guide you through the process.
- Choose your language with the Up and Down buttons and confirm with OK
- Set the actual hour and press the OK button. Then set the minutes.
- Press OK.
- Set the actual date: year, month, and day. Confirm the settings with the OK button.
- The thermostat is now ready for use and will control your heating in accordance with the pre-programmed 4-event schedule, see Factory settings.
General operation
The interrupter button allows you to turn the thermostat on “I” and off “0” by sliding the button up and down. When the thermostat is switched off to “0”, the relay disengages. All settings, including time and date, will be remembered. The thermostat is intuitively operated using the navigation buttons. The function of each button is indicated above the button in the display.
Back
In various parts of the menus and submenus, you will find the Back menu item. Use Back to return to the last step.
Exit
Returns to initial display.
Operation mode
The thermostat features three different modes of temperature control:
Auto mode
Select Auto if you want the temperature to be controlled automatically via the 4-event schedule.
Manual mode
Select Manual to cancel the programmed 4-event schedule (e.g. during holidays) and to set the required temperature manually. You may, for example, want to adjust the temperature to 5°C for frost protection while you are away.- Press Manual, confirm with OK and choose the required temperature.
Comfort mode
Select Comfort to set a temporary comfort temperature (so-called party mode) for a single event.- Press Comfort, confirm with OK, and choose the required temperature.
- Then enter the required duration of comfort mode.
- After the set time has elapsed, the thermostat will automatically revert to Auto mode.
- Please note: Comfort mode is a temporary manual setting that will be automatically canceled by the next event in the programmed 4-event schedule.
4-event settings
Allows you to have the temperature controlled automatically in accordance with a program of your own choice. You can select temperature settings for four different events during the day:
When you wake up in the morning
When you are away at work
When you come home
When you go to bed at night
The thermostat is pre-programmed with a 4-event schedule for easy and economic heating control, see Preset schedule under Factory settings. The schedule can be easily changed in the following way:
- Press the OK button to activate the 4-event settings display.
- Choose the days for which you want to change the settings, Mon-Fri or Sat-Sun using the up or down button. Press OK.
- Now select the time and temperature for each daily event in the program. Press OK and set the start time for the event concerned. Confirm with OK. Set the temperature for this event and confirm with OK.
- After setting the required events, select Exit in the menu to return to the initial display.
User settings
In the user settings menu you can change the following items:
- Time and date
- Child lock
- Display settings
- 4-event schedule
- Energy monitor
Time and date
- Press OK and set the actual time in hours and minutes.
- The date will then be displayed. Set the date and confirm with OK.
Child lock
Allows you to lock the thermostat settings, e.g. in public or other places where you do not want the settings changed. Press OK and set the child lock to On using the down button. Confi rm with OK. The child lock can be unlocked by pressing both the Comfort and Manual buttons simultaneously for 5 seconds.
Display settings
Allows you to select what is shown on the initial display.
- Time/day: Shows the actual time and day at the top of the display.
- Set temp.: Shows the current temperature setting.
- Act. temp.: Shows the actual measured temperature.
- Scr. saver: Switches off the display after 30 seconds if no button is pressed. Any subsequent press of a button reactivates the display. The thermostat remains on and runs the selected program.
- Press the OK button to select or deselect the display options. Then select Exit in the menu to return to the initial display and view your chosen settings.
4-event schedule
Allows you to choose the type of weekly 4-event schedule you require.
- 5:2 : Monday to Friday with 4 events and Saturday to Sunday with 2 events. Typically used if you work from Monday to Friday.
- 6:1 : Monday to Saturday with 4 events and Sunday with 2 events. Typically used if you work from Monday to Saturday.
- 7:0 : Monday to Sunday with 4 individual events. Allows you to choose individual programs for each of the 7 days of week.
Energy monitor
Allows you to view energy consumption for the past 2 days, 30 days or 365 days. Press OK for the chosen period. The value in percent (%) shows the relative amount of time the heating has been on. The following figure is the cost for the selected period. To ensure correct calculation, check the settings for currency, price per kWh and load.
- Currency: Press OK and choose the required currency. Confirm with OK.
- Cost/unit: Press OK and set the actual cost of electricity. The cost must be entered per kWh. Press OK.
- Load: Press OK and enter the connected heating power. The value must be in watt (W). Press OK. Leave the menu by pressing Exit.
Engineer settings
The Engineer settings menu contains the following options:
- Offset temperature
- Adaptive function
- Application
- Temperature scale
- Language
- Factory reset
- Information
Offset temperature
If the actual measured temperature does not correspond to the thermostat value, you can adjust the thermostat by offsetting the temperature. Press OK and enter the value of the measured temperature. Confirm with OK.
Adaptive function
Ensures that the required temperature has already been reached when you get up in the morning or come home from work. After just a few days, the adaptive function will have automatically calculated when the heating must be turned on. Press OK and set the function to On. Confirm with OK.
Application
Set the type of regulation used.
There are 3 options:
- Floor reg. : The thermostat regulates floor temperature only. A floor sensor must be connected.
- Room reg. : The thermostat regulates room temperature only.
- Room/limit: The thermostat regulates room temperature with min. and max. limits for floor temperature. A floor sensor must be connected.
- Regulator: The thermostat functions as a simple regulator and no sensors are used. The setting is a percentage.
- Press OK and select the required application. Confirm with OK.
Temperature scale
- Allows you to set the temperature range within which the thermostat can be set. It is then only possible to set a temperature within this range in auto, comfort and manual mode
- Press OK to highlight Min temperature. Use the up or down button to select the minimum permissible temperature. Press OK and select the maximum permissible temperature. Confi rm the settings with OK.
Language
- Allows the language used on the display to be changed.
- Press OK and select the required language.
- Confirm with OK.
Factory reset
- Allows factory settings to be restored. Your personal settings will be lost, see Factory settings.
- Press OK and choose Reset in the menu. Confirm with OK.
Information
Displays the thermostat software version.
Back
In various parts of the menus and submenus, you will find the Back menu item. Use Back to return to the last step.
Exit
Returns to initial display.
Error messages
If a fault or error occurs, the thermostat will display an error code as follows:
- E0: Internal failure. The thermostat is defective. Replace thermostat.
- E1: Internal sensor defective or short-circuited.
- E2: External sensor defective or short-circuited.
- E5: Internal overheating. Inspect the installation
Factory settings
Preset schedule
| Day 1-5 | |||
| Event | Time | With floor sensor | With room sensor |
| Day | 06:00-08:00 | 25°C | 20°C |
| Out | 08:00-16:00 | 20°C | 15°C |
| Home | 16:00-22:30 | 25°C | 21°C |
| Night | 22:30-06:00 | 20°C | 15°C |
| Day 6-7 | |||
| Event | Time | With floor sensor | With room sensor |
| Day | 08:00-23:00 | 25°C | 21°C |
| Night | 23:00-08:00 | 20°C | 15°C |
Reference:
DOWNLOAD MANUALS:
Comfortheat MCD4 Programmable Thermostat User Manual
OTHER MANUALS:
Comfortheat MCD4 Electric Programmable Thermostat Setup Manual
Comfortheat MCD4 Hydronic Programmable Thermostat Operating Manual
Comfortheat MCD4 THERMOSTAT Wiring Diagram
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