background image

3 (10)

EN.31.C.5.1907

Assembly instructions | LK Control Unit ETO2

system is now ready for operation.

7.  Check that MY Water is set to 5 degrees, see 

the heading

 Settings

.

8.  Before the system is started, the maximum 

temperature value must be controlled, see 

the heading 

Settings/MAX WATER

.

* Read more about sensor 2 under the heading 

Ground sensor

.

Principle drawing, control via 3-way valve.

Summary of Contents for ETO2

Page 1: ...ly as LK Snow melting must be controlled in termittently The equipment consists of LK Con trol Unit ETO2 LK Ground sensor ETOG and LK Pipe sensor ETF LK Control Unit ETO2 offers the following Energy efficient control of the snow melting system Simple menu navigation Clear background lit display Alarm relay Note The control unit can depending on how it is set either maintain regulate the flow tempe...

Page 2: ...nfirm by pressing the MF button 4 Set Outdoor sensor to OFF confirm by pressing the MF button 5 Set Application to Water based confirm by pressing the MF button 6 The unit changes to normal view and the Adjustment to start stop of external control equipment First time the control unit is charged it must be adjusted to the snow melting system The adjust ment is done with the unit s multifunction bu...

Page 3: ...peration 7 Check that MY Water is set to 5 degrees see the heading Settings 8 Before the system is started the maximum temperature value must be controlled see the heading Settings MAX WATER Read more about sensor 2 under the heading Ground sensor Principle drawing control via 3 way valve ...

Page 4: ... Ground sensor ETOG to the control unit but in some cases two ground sensors may be required to achieve a satisfactory function for example a ground area that stretches around the building and thereby extends to both North and South locations Placement in the ground 1 LK Ground sensor ETOG must be placed in the ground within the heated area where snow ice is suspected to remain for the longest dur...

Page 5: ... this Terminal number LK Pipe sensor return 29 Electrical conductor any color 30 Electrical conductor any color The sensor has no polarity Calibration of the ground sensor If necessary the temperature value for the ground sensor can be calibrated according to the instruc tions below 1 Disconnect the sensor cables that are con nected to terminals 11 and 12 Feed to heat element 2 Wait for a few hour...

Page 6: ...mote control of forced start is connected between terminals 35 and 36 FORCED CONTROL HEAT ETO2 Remote control forced standby Forced Standby is used when you don t want the unit to start even if there is a need On activated input closed contact a forced standby is activat ed The function is connected between terminals 33 and 34 Actuator LK Control unit ETO2 sends control signals to impact the 0 10 ...

Page 7: ...ated for zone 1 OFF Heating deactivated for zone 1 ZONE 2 ON Heating activated for zone 2 OFF Heating deactivated for zone 2 SENSOR 1 Shows the ground temperature for ground sensor 1 Note Does not show the air temperature SENSOR 2 Shows the ground temperature for ground sensor 1 Note Does not show the air temperature MOIST 1 Moisture status for sensor 1 YES NO or blank value Blank value is display...

Page 8: ... up to the adjusted SET TEMP 1 or OFF OFF no limit SET TEMP 2 Lowest start temperature for ground sensor 2 Select between 20 up to the adjusted SET TEMP 2 or OFF OFF no limit OFFSET T1 Used to calibrate ground sensor 1 see Calibration heading Select between 5 to 5 ºC OFFSET T2 Used to calibrate ground sensor 2 see Calibration heading Select between 5 to 5 ºC OFFSET OUT The function is not used for...

Page 9: ...tion RETURN TEMP LOW Too low return temperature SUPPLY TEMP HIGH Too high flow temperature RETURN SENSOR Defect return sensor SUPPLY SENSOR Defect supply sensor TEMP SENSOR 1 Defect ground sensor 1 TEMP SENSOR 2 Defect ground sensor 2 OUTDOOR SENSOR Defect outdoor sensor SENSOR HEATER Short circuiting of the heating element in the ground sensor FROST PROTECT Frost protection activated due to retur...

Page 10: ...LK Pipe sensor supply Brown cable 29 LK Pipe sensor return Blue cable NOTE LK Pipe sensor 2 is connected only if needed see the head ing LK Pipe sensor ETF 30 LK Pipe sensor return Brown cable NOTE LK Pipe sensor 2 is connected only if needed see the head ing LK Pipe sensor ETF 31 32 Not used 33 34 GSM switch or other remote control Remote standby closed contact switches of snow melting in ad vanc...

Reviews: