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21

 
Värmebaronen MP4 G2 / MP6 G2

Troubleshooting

  Work on the system which requires tools, must 

only be carried out by authorised installers. 

 

Ensure the boiler de-energised before  

starting work!

No or insufficient heat

The regulation valves are limiting the system or the set point 
value is too low for the boiler. Check and adjust.
Incorrect adjustment of the overflow valve. Check and adjust.

The boiler’s display and indications are turned off

Check the fuses and that the boiler’s control switch is in the 
on position.

The group fuses for the boiler are triggered

The immersion heater is broken. Check by isolation testing it. 
Measure between the outgoing side of the circuit board and earth. 
Call an installation engineer!

Manual operation - test mode 

In order to test the boiler’s functions when troubleshoot-
ing, you can control the power steps, the circulation pump 
and the buzzer alarm relay manually. Manual operation is 
activated in “Advanced service level”, row 23. The function is 
deactivated automatically after 4 minutes.

Temperature sensor - measurement

The sensor must not be connected to the circuit board during 
resistance measurement.

1
2
3
4

V

+

-

V

+

-

Boiler temperature 
sensor

Outdoor temperature 
sensor

7

8

Measuring points on the circuit board

Boiler temperature sensor

°C

V

°C

V

°C

V

5

141.9

4.7 40 30

3.7 75

8.2 2.3

10

111.6

4.6 45 24.6 3.6 80

6.9 2

15

88.3

4.5 50 20.2 3.3 85

5.8 1.8

20

70.3

4.4 55 16.7

3.1

90

5

1.7

25

56.3

4.2 60 13.9 2.9 95

4.2 1.5

30

45.4

4.1

65 11.6

2.7 100 3.7 1.3

35

36.8

3.9 70 9.7

2.5

Outdoor temperature sensor

°C

V

°C

V

-40 88.7

4.5

0

8.8

2.3

-35 64.2

4.3

5

6.8

2.0

-30 47.0

4.1

10

5.4

1.7

-25

34.7

3.9

15

4.2

1.5

-20

25.9

3.6

20

3.4

1.3

-15

19.5

3.3

25

2.7

1.1

-10

14.8

3.0

30

2.2

0.9

-5

11.4

2.7

Содержание MP4 G2

Страница 1: ...Installation operation and maintenance Mini Boiler MP4 G2 and MP6 G2 MP4_MP6_G2_201019_se ...

Страница 2: ...t boiler temperature 22 Frost protection 23 Manual mode 24 Manual power step 25 Manual circulation pump 26 Manual sum alarm 27 Circuit board temperature 28 UTK room sensor P factor 29 UTK room sensor I factor Pipe installation 16 Water quality Suitable water supply quality Frost protection heating systems Installation system in principle Expansion tank Safety valve Filling draining Filling venting...

Страница 3: ...s To be completed when the boiler is installed Serial number Installation date Installation engineer Tel Connection MP4 G2 MP6 G2 1 5 kW 230V 2 kW 230V 2 25 kW 400V 2N 3 kW 400V 2N 3 0 kW 400V 2N 4 kW 400V 2N 4 5 kW 400V 3N 6 kW 400V 3N Other ...

Страница 4: ... may not play with the boiler or connect accessories Never place any combustible material on the immersion heater Always contact your installation engineer for service The type and manufacturing number of the boiler must always be specified when contacting Värmebaronen see the boiler s rating plate Värmebaronen AB reserves the right to change the specification in accordance with its policy of cont...

Страница 5: ...er is equipped with a float switch to avoid damage to the immersion heaters Alternate temperature or blocking Potential free input for change in UTK level or blocking of boiler power depending on the type of temperature regulation selected Alarm indication Alarms are indicated on the boiler s control panel connection is also available for an external buzzer alarm indication Complete MP 4 6 is deli...

Страница 6: ...on is triggered when the boiler temperature exceeds 80 C Check the circulation pump and ensure that the required valves are open See also Flow overflow valve The protection is reset on the control panel when the boiler temperature has gone below 65 C Remove the RESET plug use a screwdriver press firmly until you hear a click Always check the cause of any protection being triggered If the protectio...

Страница 7: ... the heating system must be switched off as there is a risk of bursting If you suspect that any part of the heating system is frozen contact an installation engineer If the heating system is to be switched off for an extended period of time the system should be drained or it can be filled with water mixed with anti freeze Operation and maintenance The boiler must not be in operation if you suspect...

Страница 8: ...value is only applied after confirming by pressing The old value is reset if the row is left with or User level rows 0 8 Reading and modification of the most common parameters Row 0 of the menu which shows the current boiler tempera ture is the row that is normally displayed This is where you are returned to from the other menus when no button has been pressed for a while Service level rows 11 19 ...

Страница 9: ...he alarm row is displayed All active alarms are acknowl edged at the same time The red indicator will stop flashing and return to solid The display remains on the alarm row and displays the alarm code s Once all active alarms are resolved the red indicator turns off The user can use the menu system as usual even during an active alarm View at start up all segments of the display and indications ar...

Страница 10: ...vice Level row 12 3 38 Slope heating curve UTK higher value gives higher boiler temperature when cold outside 21 60 25 3 UTK function switched off see menu Service Level row 12 The boiler temperature is calculated according to the current outdoor temperature the heat curve set tings for level and slope and possibly the room temperature and alternative temperature The boiler temperature can be min ...

Страница 11: ...stment is needed Wait at least one day between adjustments so that temperatures have time to stabilise area std 4 10 Display of current outdoor temperature requires that the outdoor temperature sensor is connected Display 4 UTK function not selected and the outdoor temperature sensor is not connected 5 20 Display of the current room temperature UTK should be activated and a room unit connected act...

Страница 12: ... function not selected boiler regulates for fixed boiler temperature 14 20 UTK max limit maximum boiler temperature flow temperature The value is displayed when the UTK function is activated in the Service Level menu row 12 The maximum permitted flow temperature is selected so that it is not lower than the temperature that the heating curve selected gives on the coldest day 20 60 40 14 The boiler ...

Страница 13: ...oom unit Shifts parallel displacement UTK curve level with a configurable number of stages This corresponds to a change in the room temperature by the approximate corresponding number of degrees 20 5 5 17 Room unit not connected UTK function not selected boiler regulates for constant boiler temperature 17 0 Room unit not activated see Service level row 17 UTK is activated in the Service Level menu...

Страница 14: ...nd 2 0 24 1 Press or to select number of power stages Manual connection is subordinate to all protection functions 25 0 Circulation pump Connection can only be done after the function has been activated in row 23 0 off 0 25 1 Manual connection of the circulation pump Press or to select 1 on 26 0 Buzzer alarm Connection can only be done after the function is activated in row 23 0 off 0 26 1 Manual ...

Страница 15: ...15 menus Värmebaronen MP4 G2 MP6 G2 Menu Advanced Service Level ...

Страница 16: ...cially in combination with lime deposits Low pH values may cause corrosion damage The pH value should be 7 5 8 5 The presence of carbonic acid in combination with low pH and hardness values makes the water aggressive Frost protection heating systems If the heating system s water is mixed with anti freeze it is important to check that it contains a suitable quantity of corrosion protection additive...

Страница 17: ...ys tem pressure should not be less than 1 5 bar Flow overflow valve The flow must be ensured the overflow valve should be open 1 4 turns Delivery setting 2 turns If the valve is not open enough the pump can be damaged and the risk increases that the overheating protection will be triggered if it is open too much it can cause the circulation in the heating system to be insufficient Shut off valves ...

Страница 18: ...A MP6 2 0 kW 230 V 8 7 A Supply Cable 3 x 1 5 mm Fuse 10 A Jumper N X MP4 2 25 kW 400 V 2N 5 6 A MP6 3 0 kW 400 V 2N 7 5 A Supply Cable 4 x 1 5 mm Fuse 2 x 10 A MP4 3 0 kW 400 V 2N 7 5 A MP6 4 0 kW 400 V 2N 10 A Supply Cable 4 x 1 5 mm Fuse 2 x 10 A Jumper N X Two power steps MP4 1 5 3 kW MP6 2 4 kW MP 4 4 5 kW 400V 3N 6 5 A MP 6 6 0 kW 400V 3N 8 7 A Supply Cable 5 x 1 5 mm Fuse 3 x 10 A Two power...

Страница 19: ...sory the room unit temperature regulation is changed by the set number of degrees Example If the alternative temperature is set to 6 the mid dle point for adjustment will be displaced to 20 6 14 C when the function is activated In fixed boiler temperature regulation the power can be blocked by means of an external potential free contact function 11 Room Unit accessory The control can be equipped w...

Страница 20: ...s fixed ot 6 Room unit adjustment Incorrect value interruption short circuit or disconnection of the room unit The unit is disconnected from the regulator until the alarm is acknowledged and the room unit is fixed ot 7 Temperature sensor on power circuit board Incorrect value or interruption short circuit As a temporary solution the regulation will be carried out without the monitoring of the inte...

Страница 21: ...test the boiler s functions when troubleshoot ing you can control the power steps the circulation pump and the buzzer alarm relay manually Manual operation is activated in Advanced service level row 23 The function is deactivated automatically after 4 minutes Temperature sensor measurement The sensor must not be connected to the circuit board during resistance measurement 1 2 3 4 V V Boiler temper...

Страница 22: ...kW item no 2040 Voltage 230 400V 2N 400V 2N 400V 3N V Frequency 50 60 Hz Current 6 5 5 6 7 5 6 5 A Fuse protection 10 2 x 10 2 x 10 3 x 10 A MP6 G2 Power options 2 0 3 0 4 0 6 0 kW item no 2041 Voltage 230 400V 2N 400V 2N 400V 3N V Frequency 50 60 Hz Current 8 7 7 5 10 0 8 7 A Fuse protection 10 2 x 10 2 x 16 3 x 10 A Circulation pump Wilo Para 15 6 43 SC P 3 43 W Imax 0 44 A Grundfos UPM3 AUTO L ...

Страница 23: ...nsor 32 Rating plate 3 16 17 18 19 26 27 24 25 23 20 21 28 29 32 4 30 Components 22 Art no Designation Quan tity 300017 O ring for immersion heater 1 210221 Panel circuit board 1 700414 Overlay 1 210222 Power circuit board 1 210224 Cable power panel circuit board 1 210205 Boiler temperature sensor 1 210227 Outdoor temperature sensor 1 440040 Level sensor 1 130038 Power switch 1 120028 Overheating ...

Страница 24: ...Värmebaronen AB Arkelstorpsvägen 88 SE 291 94 Kristianstad Tel 46 44 22 63 20 www varmebaronen se www varmebaronen com info varmebaronen se ...

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