ClimAir Multi Therm-C Operating Instructions Manual Download Page 4

 

Room thermostat  MTC 

 

 

adverse  effect  on  the  correct  measurement  of  the  room  temperature  and  hen
operation of the thermostat. 
By pressing the notch on the bottom of the thermostat, you can open the thermostat. The bottom plate 
containing the connector can be mounted on a universal wall box or directly on the wall.

 
Be ware that the controller should not be mounted near a an
communication network. These antennas may disturb the correct functioning of the controller. 

Always keep a few meters distance.

 
Place the thermostat in a place where you can see the 
to reset a heater, the effect must be visible.

4.2  Electrical connection 

In all cases the communication between the heater and the 
thermostat is based on a two wire, low
the appliance the wire for the thermostat has to be connected 
to connection 4 and 5 (see also electrical wiring diagram).

 
Connect the thermostat wires to the connector 
marked with RT 
If the right connector is used the thermostat will 

become defect. 
 
Cable specification: signal cable, 1x2x0,8 (shielded and twisted)
Maximum length 200m. 
 
If the cable is chosen too thin, the signal will become too poor. If the cable is not shielded and twisted 
the signal might become disturbed in an EMC unfriendly environment.
Keep the thermostat cable separated from mains cables. Connect the earth shield of the cable only to 
the earth terminal in the heater. 
 
If these guidelines are not followed it may result in malfunction of the installation or worse, it could 
damage the thermostat or the electron

4.3  One heater on one controller

Standard  nothing  needs  to  be  changed  in  the  heating  device.  In  case  the 
thermostat  does  not  work,  check  that  the  micro
plate  in  the  room  heater  are  set  as  shown  on  the  right:  number 
and  the  other  numbers  down.  The  switch  S3  should  be  set  to  1.  In  case 
several devices are connected to 1 thermostat, refer to the relevant chapter 
in this manual. 
This  thermostat  is  only  suitable  for  connection  to  heating  devices  specifically  intended  for  this 
purpose.  Never  connect,  for  example,  24V  or  another  voltage  of  another  system  to  the  thermostat. 
This  can  damage  the  thermostat.After  making  the  changes  insid
plug the power to the heater for the changes to become effective.

4.4  Several units on 1 thermostat

The room thermostat can control up to 8 room heaters. Connecting 
them is simple, but it should be done properly.
Pay attention to the following: 

  Each unit must be given its own number (to be set with the 

micro-switch S2 in the unit).

  One unit must have the S2 number 1 set on ON (this unit 

provides for the communication) and S3 to 1, al the other 
heaters should have S3 set to 0.

  Between the separate units, the numbers 4 must be 

connected with the numbers 4 and the number 5 with 5. They must not be connected in a 
cross-wise manner. 

The functionality of the thermostat does not change by connecting a number of room heaters.

 

 

 

 

 

 

 

1 2 3 4

ON

1 2 3 4

ON

1 2 3 4

ON

S2

adverse  effect  on  the  correct  measurement  of  the  room  temperature  and  hen

By pressing the notch on the bottom of the thermostat, you can open the thermostat. The bottom plate 
containing the connector can be mounted on a universal wall box or directly on the wall.

ontroller should not be mounted near a antennas from any internal 

communication network. These antennas may disturb the correct functioning of the controller. 

Always keep a few meters distance. 

Place the thermostat in a place where you can see the heater(s). When the thermostat is used 
to reset a heater, the effect must be visible. 

In all cases the communication between the heater and the 
thermostat is based on a two wire, low-voltage connection. In 

the thermostat has to be connected 

to connection 4 and 5 (see also electrical wiring diagram). 

Connect the thermostat wires to the connector 

If the right connector is used the thermostat will 

ble, 1x2x0,8 (shielded and twisted)  

If the cable is chosen too thin, the signal will become too poor. If the cable is not shielded and twisted 
the signal might become disturbed in an EMC unfriendly environment. 

ble separated from mains cables. Connect the earth shield of the cable only to 

 

If these guidelines are not followed it may result in malfunction of the installation or worse, it could 
damage the thermostat or the electronics in the heater. 

One heater on one controller 

Standard  nothing  needs  to  be  changed  in  the  heating  device.  In  case  the 
thermostat  does  not  work,  check  that  the  micro-switches  S2  on  the  print 
plate  in  the  room  heater  are  set  as  shown  on  the  right:  number  1  up (ON) 
and  the  other  numbers  down.  The  switch  S3  should  be  set  to  1.  In  case 
several devices are connected to 1 thermostat, refer to the relevant chapter 

This  thermostat  is  only  suitable  for  connection  to  heating  devices  specifically  intended  for  this 
purpose.  Never  connect,  for  example,  24V  or  another  voltage  of  another  system  to  the  thermostat. 
This  can  damage  the  thermostat.After  making  the  changes  inside  the  heater  always  unplug  and  re 
plug the power to the heater for the changes to become effective. 

Several units on 1 thermostat 

The room thermostat can control up to 8 room heaters. Connecting 
them is simple, but it should be done properly. 

Each unit must be given its own number (to be set with the 

switch S2 in the unit). 

One unit must have the S2 number 1 set on ON (this unit 
provides for the communication) and S3 to 1, al the other 
heaters should have S3 set to 0. 
Between the separate units, the numbers 4 must be 
connected with the numbers 4 and the number 5 with 5. They must not be connected in a 

The functionality of the thermostat does not change by connecting a number of room heaters.

 

 

 4/12

 

1 2 3 4 5 6 7 8

ON

1

0

S3

S2

5 6 7 8

5 6 7 8

5 6 7 8

Heater 1

Heater 2

Heater 3

0

1

S3

0

1

0

1

adverse  effect  on  the  correct  measurement  of  the  room  temperature  and  hence  on  the  proper 

By pressing the notch on the bottom of the thermostat, you can open the thermostat. The bottom plate 
containing the connector can be mounted on a universal wall box or directly on the wall. 

ennas from any internal 

communication network. These antennas may disturb the correct functioning of the controller. 

heater(s). When the thermostat is used 

If the cable is chosen too thin, the signal will become too poor. If the cable is not shielded and twisted 

ble separated from mains cables. Connect the earth shield of the cable only to 

If these guidelines are not followed it may result in malfunction of the installation or worse, it could 

Standard  nothing  needs  to  be  changed  in  the  heating  device.  In  case  the 

switches  S2  on  the  print 

1  up (ON) 

and  the  other  numbers  down.  The  switch  S3  should  be  set  to  1.  In  case 
several devices are connected to 1 thermostat, refer to the relevant chapter 

This  thermostat  is  only  suitable  for  connection  to  heating  devices  specifically  intended  for  this 
purpose.  Never  connect,  for  example,  24V  or  another  voltage  of  another  system  to  the  thermostat. 

e  the  heater  always  unplug  and  re 

connected with the numbers 4 and the number 5 with 5. They must not be connected in a 

The functionality of the thermostat does not change by connecting a number of room heaters. 

Summary of Contents for Multi Therm-C

Page 1: ...perating instructions Clock thermostat optimising controller Operating instructions Clock thermostat MTC optimising controller Operating instructions Clock thermostat optimising controller MTC GB v03 01 ...

Page 2: ...E THERMOSTAT 7 12 DESTRATIFICATION DELAT T REGULATION 8 13 BACK TO FACTORY DEFAULT SETTINGS 8 14 REMOTE SENSOR 8 14 1 ELECTRICAL CONNECTION 8 14 2 SETTING THE CONTROLLER FOR THE REMOTE SENSOR 9 14 3 AVERAGE TEMPERATURES 9 14 4 ERRORS WITH THE REMOTE SENSOR 9 15 OPTIONAL EXTERNAL INPUT 9 16 SOLVING AND ANALYSING FAILURES 9 17 OBTAINING EXTRA INFORMATION FROM THE CONNECTED HEATERS 10 18 INSTALLER ME...

Page 3: ...different programmable time blocks Up to 8 heaters controllable Frost protection Keyboard locking Overtime program Ventilation Failure diagnosis of the devices Suppression of interference of the heater Compensation for wall influence suited for remote sensor Supplied battery excellent for preserving data in case of power failure 3 2 Technical specifications Power supply low voltage current Tempera...

Page 4: ...tat is used to reset a heater the effect must be visible In all cases the communication between the heater and the thermostat is based on a two wire low voltage connection In the thermostat has to be connected to connection 4 and 5 see also electrical wiring diagram Connect the thermostat wires to the connector If the right connector is used the thermostat will ble 1x2x0 8 shielded and twisted If ...

Page 5: ...Exit the menu by pressing M twice 5 2 Time date Menu M Settings Time Date Set the time and select whether you want to use the Daylight saving time DST To exit the menu press M twice 5 3 Temperatures Menu M Settings Temperatures During the clock program the thermostat works with 3 temperature levels in a room Day Night and Frost temperature These levels can each be set from 0 to 30 degrees Celsius ...

Page 6: ...mperature the temperature is not raised However you can change the temperature manually Cont frost The thermostat maintains the programmed frost temperature the temperature is not raised However you can change the temperature manually Clock program The thermostat maintains the clock program You can still change the set point manually the set point will return to its automated value at the program ...

Page 7: ...um time that the heaters will start earlier is 3 hours and the earlier start is not overnight 9 Keyboard locking Menu M Settings Keyboard locking Set key lock code o Default 0 0 0 0 On Off On excl overtime It may be handy to secure the thermostat in whole or in part against unauthorised changing of the settings There are several levels of security Unlocked Fully locked Limited with only the overti...

Page 8: ...ification or delta T regulation The thermostat measures the temperature on ground level and reads the temperature above in the room from the sensors on the heater When the temperature difference between the ceiling and ground level the ventilator inside the heaters will start to push the warm air down factory When this regulation is active the heater wil also stop to burn until this temperature is...

Page 9: ...543 Remote sensor Exit the menu by pressing the M button 2 times The controller can also calculate the average between its internal sensor and the remote sensor Selecte the option Average for that Errors with the remote sensor In the case that te controller sees an error regarding the remote sensor it will show an error on the display When there is no sensor found it will show error 3 When the sen...

Page 10: ...e information about the selected heater will appear The information will be shown in the English language To exit the information menu press the M button When no heater is found the display will show Heater N C not connected Screen 1 Shows the heater type Screen 2 line 1 shows the discription of the connected heater line 2 shows the status of the heater line 3 and 4 shows the temperatures from the...

Page 11: ... down 8 C value for swiching OFF Delta T2Hystereses Not used o Hyst up 4 C o Hyst down 2 C Hystereses computing value for thermostat o 0 3 C I Factor computing value for thermostat o I 5min Delta T2 regeling not used o ON OFF External sensor o ON OFF average View mode Only o ON OFF With this option the heat demand from the thermostat is disabeled The thermostat can be uses as a remote status reade...

Page 12: ...d push it into the opening on the bottom of the thermostat Carefully prise the print plate out of the top of the thermostat using a flat screwdriver See picture Carefully prise the print plate out of the holder see picture Then prise the battery out of the holder and Note Do not dispose the battery in Maintenance and service Under normal use the thermostat requires no maintenance In a very dusty e...

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