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DEVIreg™ 850 IV

Installation instruction

20

Installation of dual system

The installation of a DEVIreg™ 850 with 

2 roof

 systems 

or 2 ground

 systems has been 

selected.

It is 

mandatory

 that no sensors or only sensors for 

System A

 are connected to the 

the DEVIreg™ 850 before power up. Sensors for 

System B

 must be connected to the 

DEVIreg™ 850 during the installation steps. Connection of the sensors during installation 
can either be done using a switch on the DIN-rail or just connect sensor bus of 

System B

 

to the already connected sensor bus of 

System A

.

 The first installed system (

System A

) is using the output 

System A

. 

The second installed system (

System B

) is using the output 

System B

.

If sensors for 

System A

 are not connected — do it now!

  Press 

 or wait…

CONNECT SENSORS:

SYSTEM A

System is being scanned to find type of connected
sensors…

SYSTEM A

SCANNING...

  Select system type: Ground.

SYSTEM TYPE:

GROUND

  Wait until correct number of sensors for 

System A

  

is found.

1 GROUND SENSOR

FOUND.  ACCEPT?

  Press 

 when all sensors for 

System A

 are found…

System A

 is installed… 

SYSTEM A!

INSTALLED

Connect sensors for 

System B

.

  Press 

  or wait…

CONNECT SENSORS:

SYSTEM B

 
System is being scanned to find type of connected  
sensors…

SYSTEM B

SCANNING...

  Select system type.

SYSTEM TYPE:

GROUND

  Wait until correct number of sensors for 

System B

  

is found.

1 GROUND SENSOR

FOUND.  ACCEPT?

Summary of Contents for DEVIreg 850 IV

Page 1: ...www DEVI com Installation instruction DEVIreg 850 IV controller EN ...

Page 2: ...meters and performance of systems 8 2 Installer Manual 10 2 1 System overview 10 2 2 Placement 11 2 3 Connection steps for system 11 2 4 Installation steps for system systems 15 2 5 Modification of system s 22 3 Technical Specifications 24 3 1 Technical data 24 3 2 Factory settings 25 4 Appendix 26 A Menu system 26 B How it works 31 C PSU and feeder cable 35 5 Warranty 36 ...

Page 3: ...cicles from causing dam age It is also possible to use the roof system to reduce remove the snow weight from a roof Roof system A A Single ground system To keep areas like parking areas paths garage entranc es steps ramps roadways and bridges free of ice and snow Ground systems A A A 1 ground system and 1 roof system combi system Consists of 1 single roof system A and 1 single ground system B A B ...

Page 4: ...adings when compared with corresponding analogue systems The result is optimum functionality and low en ergy consumption For more information about the ice and snow melting function of the DEVIreg 850 please refer to Appendix B How it works A typical installation consists of Controller unit only one This is the device which based on the measurements from the sensors decides when to heat the connec...

Page 5: ... case of insolvable problems due to a wrong choice of language etc Hold for 8 seconds Display The following icons have a special meaning This animated icon is shown when the system is heating When the icon is blinking the system wants to heat but is paused system has low priority This icon is shown when the system has detected moisture and the tempera ture is above the melting temperature This ico...

Page 6: ... press to get more information about the current status irrespective of view selected Menu system The menu system is navigated by the keys and No matter if the DEVIreg 850 controls one or two systems the look and use of the menu system is always the same This is obtained by making the entry to each system in the main menu The possibilities and settings for each system are first accessible after th...

Page 7: ...s the user At the same time the DEVIreg 850 automatically switch es the system to Constant Off mode and user interaction with the DEVIreg 850 is needed Solution Acknowledge error and go to Installer Site in the menu system and select Change System Contact your local installer to get a replacement New sensor added Description When a new sensor is added the DEVIreg 850 alarms the user and at the sam...

Page 8: ...ist The factory setting is 50 on a scale from 5 to 95 The lower the setting the more sensi tive the system is to moisture Post heat Once the sensor has detected that the roof gutter is dry and free of ice and snow the system will keep heating for another hour default If you wish to increase decrease this time see Appendix A Installer menu The factory setting is 1 hour on a scale from 0 to 9 hours ...

Page 9: ...y setting is 50 on a scale from 5 to 95 The lower the setting the more sensitive the system is to moisture Post heat Once the sensor has detected that the roof gutter is dry and free of ice and snow the system will keep heating for another hour default If you wish to increase decrease this time see Appendix A Installer menu The factory setting is 1 hour on a scale from 0 to 9 hours Priority When u...

Page 10: ...s total minimum 1 sensor per system When more than 1 area is controlled by the DEVIreg 850 system it is also possible to prioritize the areas Prioritizing makes it possible to operate 2 areas even if the needed power for 2 areas is not present A typical ice and snow melting system consists of DEVIreg 850 Only 1 DEVIreg 850 is allowed on the DEVIbus Power supply More power supplies can be connected...

Page 11: ...sensor bus DEVIbus can be connected and disconnected via switches During the installation of a dual system each system must be connected one at a time Be aware of maximum allowable power drain from power supply to sensors Below is shown the recommended order of the installation Please refer to figure A for connection of DEVIreg 850 and refer to figure B G for a guideline to connect the heat ing el...

Page 12: ... 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11 12 12 5 4 DEVIbusTM sensors Red Black White White 230 VAC 50 60 Hz ALARM 2 A 250 V System A 15 A 250 V System B 15 A 250 V The DEVIreg 850 has an integral alarm function that monitors the attached sensors and the in built microprocessor An external alarm may also be connected to the system Fig A Connection of DEVIreg 850 IV ...

Page 13: ... A DEVIreg 850 IV 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11 12 L1 L2 L3 N L K1 K1 K1 1 x ln N 230 V cables 230 V cables 1 3 P 1 3 loads System B 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11 12 L1 L2 L3 N L K1 K1 K1 1 x ln N DEVIreg 850 IV 230 V cables Fig B Fig C ...

Page 14: ...e 1 3 Loads SystemB DEVIreg 850 IV 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11 12 L1 L2 L3 N L K1 K2 K1 K2 400 V cables Direct connection System A 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11 12 L N max 15 A DEVIreg 850 IV 230 V cables Direct connection System B DEVIreg 850 IV 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11 12 L N max 15 A 230 V cables Fi...

Page 15: ...l description and finally select the installation scenario according to the system type Change setting with key Accept setting with key General Power on DEVIreg 850 IV WELCOME TO DEVIREG 850 IV Select language SELECT LANGUAGE ENGLISH System is being checked CHECKING SYSTEM Select system configuration Roof system 1 system Ground system 1 system Combi system 2 systems Dual system 2 systems SYSTEM SI...

Page 16: ...EM A SCANNING Select system type Roof SYSTEM TYPE ROOF Wait until correct number of sensors for System A is found 1 ROOF SENSOR FOUND ACCEPT Press when all sensors are found System A is installed SYSTEM A INSTALLED System is being checked CHECKING SYSTEM Press to configure System A naming sensors and changing factory settings CONFIG SYSTEM SYSTEM A Please refer to Changing parameters and performan...

Page 17: ...M A SCANNING Select system type Ground SYSTEM TYPE GROUND Wait until correct number of sensors for System A is found 3 GROUND SENSOR FOUND ACCEPT Press when all sensors are found System A is installed SYSTEM A INSTALLED System is being checked CHECKING SYSTEM Press to configure System A naming sensors and changing factory settings CONFIG SYSTEM SYSTEM A Please refer to Changing parameters and perf...

Page 18: ... the description of the Display and Combined view in the user manual If sensors for System A are not connected do it now Press or wait CONNECT SENSORS SYSTEM A System is being scanned to find type of connected sensors SYSTEM A SCANNING Select system type Roof if roof system is preferred as System A SYSTEM TYPE ROOF Wait until correct number of sensors for System A is found 1 ROOF SENSOR FOUND ACCE...

Page 19: ...YSTEM Press to select system to configure CONFIG SYSTEM SYSTEM A Press to configure selected system naming sensors changing factory settings and setting priorities CONFIG SYSTEM SYSTEM B Please refer to Changing parameters and performance of systems in User Manual for description of the configurable parameters Press to end configuration PRESS TO END CONFIGURATION ...

Page 20: ... system System A is using the output System A The second installed system System B is using the output System B If sensors for System A are not connected do it now Press or wait CONNECT SENSORS SYSTEM A System is being scanned to find type of connected sensors SYSTEM A SCANNING Select system type Ground SYSTEM TYPE GROUND Wait until correct number of sensors for System A is found 1 GROUND SENSOR F...

Page 21: ...YSTEM Press to select system to configure CONFIG SYSTEM SYSTEM A Press to configure selected system naming sensors changing factory settings and setting priorities CONFIG SYSTEM SYSTEM B Please refer to Changing parameters and performance of systems in User Manual for description of the configurable parameters Press to end configuration PRESS TO END CONFIGURATION ...

Page 22: ...ivated If the malfunctioning is caused by an error prone sensor the error can be cor rected by replacing the error prone sensor with a new sensor It is not possible to delete a passive sensor in a system Passive sensors will remain in the systems until they are replaced with new sensors The only way to delete a passive sensor other than replacing it is to make a Master Reset and reinstall the DEVI...

Page 23: ...should now select the new sensor ADD SENSOR ID 03ABC1 Press to loop through the found new sensors or to cancel replace sensor ADD SENSOR ID 03DEF1 Press when the correct new sensor to add is found or Cancel replace sensor is selected CANCEL REPLACE SENSOR If the user selected a new sensor to add the replacing of the sensors is performed SENSOR REPLACED Add an extra sensor From the installer menu s...

Page 24: ... C to 40 C 50 C to 70 C 30 C to 70 C Sensor type DEVIbus connected moisture sensor s Indication 2 16 character illuminated display Alarm light red Lit info key yellow Measurements D x H x W DEVIreg 850 IV Roof sensor Ground sensor Tube ground sensor 53 86 105 mm 15 23 5 216 mm ø 87 mm height 74 mm ø 93 mm height 98 mm Versions languages Latin GB CZ DE DK ES EST FI FR HR HU LT LV NL NO PL SCG SE SI...

Page 25: ... hour 0 to 9 hours Clogged drain On On off System mode Automatic Automatic Constant ON manual timer Manually OFF Ground system Function Factory settings Range Options Moisture level 50 5 to 95 5 being the most sensitive to moisture Standby temperature 3 0 C 20 C to 0 C Melting temperature 4 0 C 1 0 C to 9 9 C Post heat 1 hour 0 to 9 hours Clogged drain On On off System mode Automatic Automatic Con...

Page 26: ...DEVIreg 850 IV Installation instruction 26 4 Appendix A Menu system Main menu System B System A 5s 5s Only visible when System B is installed System menu Installer menu Return to main System menu A B ...

Page 27: ...nstallation instruction View sensor measurements View sensor measurements Roof systems View system parameters Roof system View sensor parameters View sensor measurements Ground system View system parameters Ground system ...

Page 28: ...DEVIreg 850 IV Installation instruction 28 Installer menu _ View statistics Change system Installer menu ...

Page 29: ...on Change system Change system Only if any passive disabled sensors are working again If new sensor s found and passive sensor s found If new sensor s found but no passive sensor s found If no new sensor s found Example showing ground system ...

Page 30: ...DEVIreg 850 IV Installation instruction 30 View statistic View statistics ...

Page 31: ...and snow The roof area is heated in periods of 3 hours Within that period a decrease in moisture will stop the heating and activate post heating The post heating function can be disa bled Measuring temperature The heating function is suspended every third hour meaning that the heating cables are turned off This is done in order to allow the sensors to measure the temperature without being influenc...

Page 32: ...sors Melting Ice and snow As long as the measured temperature is lower than the chosen melting temperature heating of the ground area will be on When the measured temperature reaches the cho sen melting temperature and the measured moisture level is below the chosen limit the post heating function will be activated The post heating function can be disabled If moisture is detected on the ground are...

Page 33: ...ch under normal circumstances will hold a temperature of 1 5 C In connection with measuring the area temperature heating of the sensor is turned off for 90 minutes at a time This is done in order to obtain a correct measurement of area temperature which is not influenced by sensor temperature If a system only has one sensor this sensor is constantly heated for 90 minutes and then turned off for 90...

Page 34: ...degree of security in even dry areas Low security lower energy consumption Conversely low energy consumption and a moderate level of security against ice and snow could be prioritized In this case make the following adjustments of the operation parameters Decrease the standby temperature Decrease the melting temperature Increase the moisture level Shorten the post heat period This will give relati...

Page 35: ...0 600 310 if 2 sensors are used in a dual zone system ie 1 sensor in each zone 2 PSUs are required Roof System 1 pcs PSU 24 VDC 24 W 2 pcs PSU 24 VDC 24 24 W in parallel Number of sensors 1 2 3 4 Cable type Max length m Max length m Max length m Max length m 1 mm 400 100 130 75 1 5 mm 600 150 200 110 2 5 mm 1000 250 330 190 4 mm 1600 400 525 300 DEVIreg 850 IV 13 13 14 15 16 17 18 19 20 21 22 23 2...

Page 36: ...ories including heating cables and heating mats accessories Should you against all expectations experience a problem with your DEVI product you will find that DEVI offers DEVIwarranty from the date of purchase on the following conditions During the warranty period DEVI shall offer a new comparable product or repair the product in case the product is found to be faulty by reason of defective design...

Page 37: ...g Systems Ulvehavevej 61 7100 Vejle Denmark Phone 45 7488 8500 Fax 45 7488 8501 E mail EH DEVI com www DEVI com Name Address Postal code Phone Please observe In order to obtain the DEVIwarranty the following must be carefully filled in See other conditions on previous page Electrical Installation by Installation date Type of thermostat Production code ...

Page 38: ...DEVIreg 850 IV Installation instruction 38 ...

Page 39: ...DEVIreg 850 IV 39 Installation instruction ...

Page 40: ...such alterations can be made without subsequential changesbeing necessary in specifications already agreed All trademarks in this material are property of the respective companies DEVI and the DEVI logo type are trademarks of Danfoss A S All rights reserved Produced by Danfoss 06 2018 VICKM502 08097060 Danfoss A S Electric Heating Systems Ulvehavevej 61 7100 Vejle Denmark Phone 45 7488 8500 Fax 45...

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