This means that ECtemp 550 will automatically adjust the heating to meet your comfort levels regardless of changing weather conditions shortly after the settings are set and the desired comfort temperature has been selected.
ECtemp 550 when you want the comfort temperature, and the rest will happen automatically; by identifying the rate of heat loss from the room, ECtemp 550 knows when to start heating in order to achieve the selected tempera- ture at the right time.
ECtemp 550 Settings Using clear visual symbols, the display of the thermostat shows active and selected functions, the actual tempera- ture and the time: 1. Symbol for frost protection. 2. Numeric display of time, temperature, text, etc. 3. Day of week.
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ECtemp 550 9. Safety lock. 10. Economy periods (i.e. periods with lowering of tem- perature). Basic rules for changing thermostat settings Accessing different When you press and hold the but- settings ton for a certain number of sec- onds, different layers of settings will appear.
ECtemp 550 Network installation If more ECtemp 550 thermostats have been installed, they may be connected in a network. If so, one of the thermo- stats is defined as the master unit controlling the time, day of week and lowering of temperature during economy peri- ods for the other so-called slave units.
ECtemp 550 Time and Day of Week The time and day of week is not set by default. How to set the time and day of week 1. Press and hold the button for 3 sec- onds. The symbol for setting of time, the...
4. When the right time is found, press the button once to save the settings. Periods with Lowering of Temperature With ECtemp 550 you have the possibility of either setting the thermostat to keep a constant temperature, or let the thermostat automatically switch between periods with a lower temperature (also called economy temperature) and periods with comfort temperature.
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ECtemp 550 How to define comfort periods and economy periods Note: The markings on the clock ring indicate periods with comfort temperature and periods with economy tempera- ture. The flashing point indicates the actual time of day. If at any point you make a mistake, rotate the dial counter- clockwise to the first segment and press the button to clear the marking.
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ECtemp 550 3. Turn the button clockwise until you reach the time at which the tempera- ture should be lowered again, e.g. 07:30. Then press the button once to confirm. 4. Turn the button clockwise until you reach the time at which the comfort temperature is required again, e.g.
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ECtemp 550 8. Hold the button for 3 seconds to save your settings and finish. The display will automatically return to normal dis- play. How to turn the timer function on and off 1. Press the button once to turn the timer function on or off.
ECtemp 550 Minimum Floor Temperature Note: Minimum floor temperature only applies if the ther- mostat is configured to use a room and floor sensor (rFS mode) and only during comfort periods. 1. Press and hold the button for 9 sec- onds.
ECtemp 550 Safety Lock The safety lock is used for preventing undesirable changes of the thermostat settings. How to turn the safety lock on 1. Press and hold the button while turn- ing it counter-clockwise until "COdE" appears on the display. Then turn the button clockwise to select "0033".
ECtemp 550 3. Press once to confirm and the safety lock symbol dis- appears from the display. The safety lock is off and it is now possible to change the thermostat settings again. Turning the Thermostat On and Off Note: The thermostat is on by default. Before you can switch the thermostat off, the timer function must be deac- tivated.
Do not interrupt the power supply to the ther- mostat. Error Messages ECtemp 550 has a built-in system that constantly checks the heating system, the thermostat itself and a possible network for any malfunctions. When an error occurs, the outer ring on the thermostat dis- play flashes and one of the numbers normally indicating the day of week shows the error code.
ECtemp 550 The thermostat is Call an electrician (Let the switched off because thermostat cool for a period. of overheating. Then enter basic set-up to leave error mode). Sensor fault. Floor Call an electrician (Floor sen- sensor is short circuit.
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Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed.