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INT

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Carefully detach the display module. The module must be 

• 

pulled straight out to avoid damaging the 8-pin connector 
plug on the back of the module!

Frame

Carefully detach the frame.

• 

4.3 Connecting cables

Connect the cables as shown below.

• 

Devireg™ 550

Mains supply 
180-250 V 
50/60 Hz

Heating element
Max. load 16 Amp.

Network
connection
EFIT 550 ONLY

NTC sensor

  Installation manual

Summary of Contents for EFIT 550

Page 1: ...EFIT 550 User Guide and Installation Manual INT MAKING MODERN LIVING POSSIBLE Danfoss Heating INT...

Page 2: ...2 Thank you for buying a Danfoss product With this purchase you have obtained a product of the highest quality designed to give long lasting comfort at a minimum of environmental impact...

Page 3: ...tallation overview 14 1 1 Safety instructions 14 1 2 Installation guidelines 14 2 0 System overview 15 2 1 Three different sensor configurations 15 2 2 Network 16 3 0 Functional overview 16 4 0 Instal...

Page 4: ...t in timer When the timer is used the unit can automatically switch between the set comfort temperature and economy tem perature at specific times of day To use the timer you must first set the day an...

Page 5: ...g the temperature Pressing briefly to activate or deactivate the timer or confirm a setting during configuration Pressing and holding for a number of seconds to access various settings User guide Time...

Page 6: ...es a floor sensor only the display shows the set temperature on a scale from 1 to 10 If you lower the temperature to 5 C appears on the display The thermostat maintains a temperature of 5 C in the roo...

Page 7: ...he button except to switch off the child lock The child lock can be switched off using the same proce dure as for switching it on 1 6 Switching the thermostat on and off The thermostat can only be swi...

Page 8: ...y The system automatically switches between comfort and economy temperatures at the preset times of day The economy temperature never appears on the alpha numeric display The display consistently show...

Page 9: ...time When the set time passes 0 00 in either direction the weekday display changes to the next or previous day depending on which direction the button is being turned Press to confirm disappears from...

Page 10: ...ogram to start Press to confirm Set the starting time of the first comfort temperature period Press to confirm Set the duration of the first comfort temperature period The duration is shown as a segme...

Page 11: ...on the button is being turned In this way it is possible to program an entire week with different comfort and economy temperatures for each day The intervals between the comfort temperature periods be...

Page 12: ...ooting In case of an error the hour display starts flashing and the weekday display indicates an error code from 2 to 7 Refer to the description of error messages in section 6 of the Installation Manu...

Page 13: ...r temperature limit 20 to 50 C Operation voltage 180 250 VAC 50 60 Hz Resistive load 230 V 16A 3680W Inductive load cos 0 3 Max 1A Power consumption 500 mW Battery back up 100 hours Economy set back 0...

Page 14: ...ust be off As the EFIT 550 is not equipped with an earth terminal the earthing screen of the heating cable and the earthing wire from the mains supply must be connected to the earth terminal in the su...

Page 15: ...d be installed on an even surface according to local building regulations Place the thermostat at least 50 cm from windows doors that will be left open occasionally Do not place the thermostat on a wa...

Page 16: ...nts RFS Room and floor sensor total heating Suitable for control of room and floor temperature in e g living rooms Unsuitable for wet rooms The floor sensor monitors the floor temperature limiting hea...

Page 17: ...e button as follows Seconds held Function accessed Notes 3 Time and weekday setting 6 Timer setting 9 Minimum floor temperature set ting Only when configured to use room and floor sensor 12 Basic sett...

Page 18: ...oint The thermostat is designed for installation in a surface mounted box or recessed box with the correct dimensions Read and observe the guidelines set forth in section 1 1 and 1 2 4 2 Dismantling t...

Page 19: ...damaging the 8 pin connector plug on the back of the module Frame Carefully detach the frame 4 3 Connecting cables Connect the cables as shown below Devireg 550 Mains supply 180 250 V 50 60 Hz Heatin...

Page 20: ...n and the mains supply earthing wire to the mounting box earthing terminal 4 4 Mounting and reassembling the thermostat Screw holes Mount the base plate on the wall Make sure the base plate cannot be...

Page 21: ...onfigure basic settings as described in section 4 6 4 6 Configuring basic settings You can access and configure basic settings at any time by pressing and holding the button for 12 seconds entering co...

Page 22: ...possible network configurations in section 5 1 If a network is not used choose ALO Press to confirm The adaptive function of the EFIT 550 can be switched off Select status for adaptive function AdAP...

Page 23: ...use a room sensor only Press to confirm To protect the cables the maximum floor temperature is factory preset to 35 C Notice The floor temperature is measured where the sensor is placed The temperatur...

Page 24: ...set value only recalibrates the thermostat s temperature reference point and does not adjust heating element power If a thermometer and the thermostat display very differ ent temperature readings one...

Page 25: ...to confirm If normal room heating is installed we recommend lowering the temperature by no more than approx 5 C during economy periods Press to save the settings The display returns to normal Install...

Page 26: ...ork will not respond to or send information to a master unit However they still count towards the network maximum of 32 units The following settings on all slave units are controlled from the master u...

Page 27: ...oss section or 500 m 1 5 mm2 wire cross section The thermostat network can be controlled remotely using e g WEB HOME or Danfosscom PC Pro Further informa tion on how to connect and use these products...

Page 28: ...appear 5 Short circuit in floor sensor Check the sensor connection to the thermostat Disconnect the sensor cables and test them Replace the sensor if it is faulty Replace the ther mostat if the error...

Page 29: ...e SLA Adaptive function On AdAP On AdAP Off OFF Sensor Room floor sensor FS Floor sensor FS Room sensor RS Room floor sensor FS Max floor tempera ture 35 C 20 to 50 C Offset 0 C 5 5 to 5 5 C Economy s...

Page 30: ...faulty by reason of defective design materials or workmanship Repair or replacement shall be carried out at Danfoss s discretion Danfoss shall not be liable for any consequential or incidental damages...

Page 31: ...ranty Certificate Address City Electrical installation by Material number Type of thermostat Date Telephone Attention The Warranty Certificate must be completed correctly for the Warranty to be valid...

Page 32: ...Article No 088L0358 Version 04 01 Danfoss A S Ulvehavevej 61 DK 7100 Vejle Tel 45 74 88 85 00 Fax 45 74 88 85 01 www danfoss com Danfoss Heating Solutions VISGF202 Danfoss 02 2009...

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