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Heating temperature decrease 

Heating temperature decrease is a parameter that is set according to a selected "circuit control" option (set by 
the Service). 
 
 

For  manual  control,  the  temperature  decrease  of  the  heating  system  is  set  in  %.  The  temperature 

decrease is set in the 

CH Program

 option (see description below). 

   
 

For  installations  equipped  with  a  room  thermostat  (no  weather  sensor),  the  measuring  input  short-

circuit of the room sensor is a signal to the controller to lower the heating temperature by a set % value. For 
installations with a mixing valve, the valve will be closed and the temperature of the boiler will be decreased. 
 
 

For installations with an external sensor (the "circuit control" option needs to be set by the Service), the 

decrease is set in °C. The set value should apply to room temperature reduction. The controller will convert it to 
a  heating  temperature  decrease  value  taking  into  account  the  current  external  temperature  and  the  set 
weather characteristics. 
 
NOTE: 
1. PELLET fuel set. 
If  the  boiler  temperature  decrease  is  high,  the  regulator  can  stop  the  boiler.  For  a  several-degree  decrease 
(especially  for  the  PID  option  enabled  -  see:  Advanced/boiler/PID),  the  regulator  will  reduce  power  output 
without stopping it. 
2. WOOD fuel set. 
The  boiler  temperature  will  not  be  reduced  below  the 

minimum  boiler  temperature

  allowed  by  the 

manufacturer that is set in service parameters. Due to the risk of corrosion (a phenomenon of dew presence in 
the  burning  chamber),  the  controller  maintains  a  minimum  temperature  in  the  boiler  (see  the  minimum 
temperature parameter). 

SUMMER/WINTER/AUTO

2

modes 

This  parameter  is  used  to  manually  switch  the  regulator  into  the  SUMMER  or  WINTER  mode.  Moreover,  the 
AUTO mode can be chosen - the controller will automatically switch into the WINTER or SUMMER mode based 
on the outside temperature. 
 
In the summer mode only Hot Water is operated. In the WINTER mode, the controller controls the entire heating 
(CH + HW). 

Weather characteristics

3

 

If  the  Service  sets  an  option  that  uses  the  external  sensor,  the  menu  will  display  a  possibility  to  set  weather 
characteristics.  The  regulator  has  13  ready-made  characteristics  to  choose  from.  They  were  prepared  for 
buildings with different thermal isolation and different heating systems. When choosing the right option for a 
specific building, attention should be firstly paid to the heating type. For underfloor heating, characteristics in 
the range of 1-4 should be chosen, for radiator heating, 4-13. Then, insulation quality should be assessed. The 
worse  the  thermal  insulation  of  the  building,  the  higher  the  number  of  characteristics  should  be.  The  best 
solution is to select the average value. For underfloor heating it is good to set number 3, for radiator heating  - 
number 7. 
 
The full range of characteristics offered by MULTIFUN is presented further. 

                                                                 

2

 The AUTO operation mode is possible only for configurations with the external sensor. For simple options, the 

AUTO mode is not displayed. See „circuit control”. 

3

 The parameter is visible only after setting the operation configuration with the external sensor in the „Circuit 

control” (two configurations are available) 

Содержание MultiFun

Страница 1: ...MultiFuncontrol system Typ PELLET_V10 Software PELLET EVO 20 09 2013 Recalart Electronic ...

Страница 2: ...2 ...

Страница 3: ...asuring inputs 10 Connection diagrams 11 Installation diagrams 13 Control panel 15 Description of main elements 15 Main menu 15 User menu 17 Temperatures 17 Heating temperature 17 HW temperature 17 SYMBOLS 17 Turning on the boiler 17 Turning off the boiler 18 Fuel selection 18 Time settings 18 History and statistics 18 SUMMER WINTER modes 19 Manual mode 19 Manual control 19 Sensor test 21 Advanced...

Страница 4: ...er feeder 33 Emergency temperature of the feeder 33 Dispenser feeder capacity 33 Fuel 33 CH circuit 33 Mixer 33 Circuit control 34 HW circuit 35 HW priority 35 Circulating pump 35 HW rundown during summer 36 Buffer pump 36 Operation activation 36 Upper temperature 36 Lower temperature 36 Operation modes 37 The beginning of service 37 The end of service 37 Minimum temperature of pumps 37 Automatic ...

Страница 5: ...n that allows for ease of use There should be a message that the switch turns off power Use a switch which meets IEC947 standards The device does not have a built in fuse therefore a fuse must be installed in the power circuit when connected to a phase terminal The fuse should be placed between the power switch and the device and mounted on the L side of the phase terminal Fuse rated values charac...

Страница 6: ...nearest sales representative CONNECTION Assembly procedures should be carried out only by persons qualified in the subject of electric device installation Przy wykonywaniu podłączenia regulatora należy zwrócić szczególną uwagę na następujące warunki Hazard Electrical wiring assembly or disassembly connected installation works can be carried out only after switching off the power supply of the devi...

Страница 7: ... be provided along with the device and if swallowed can cause death by suffocation Do not make any mechanical or electrical changes to the device Such changes may result in improper operation of the unit which does not conform to standards and affect it negatively No elements should be inserted into the device through slots e g vent slots This may cause a short circuit electric shock fire or damag...

Страница 8: ...om the power circuit The housing cannot be cleaned with gasoline solvents or other chemicals that may damage it We recommend using a soft cloth If the AC power cord is damaged do not use it A damaged cable must be exchanged for a new one with the same specifications DISPOSING USED EQUIPMENT The electronic unit is partly made of recyclable materials For this reason when used up it must be subject t...

Страница 9: ...le without which the boiler will not work properly Boiler feed temperature sensor BOILER FEED Feeder temperature sensor FEEDER Flame sensor PHOTODETECTOR To successfully run other functions of the controller appropriate sensors must be connected to the run time module Fan hall generator recommended when using a fan with a revolution number sensor Hot water temperature sensor HW when water heating ...

Страница 10: ...sensor is mounted in the boiler measuring hole The sensor is required for proper operation of the boiler Fumes PT1000 type sensor not included in the standard version Feeder sensor A measuring input for the feeder temperature sensor The sensor is required for proper operation of the boiler BOILER RETURN A temperature sensor on the return position from the heating system the sensor is mounted on th...

Страница 11: ...11 Connection diagrams Figure 1 Electrical connections diagram for the run time module ...

Страница 12: ...12 LEGEND G igniter W blower P2 feeder Figure 2 Burner joint connection diagram Figure 3 Burner control ...

Страница 13: ... C6 Lower Buffer sensor C7 external sensor C8 room sensor C9 feeder sensor F flame sensor P1 dispenser feeder P2 burner feeder G heater P1 CH pump P2 HW dispenser charging pump P3 HW circulating pump P4 buffer pump M1 mixing valve actuator Figure 4 Hydraulic installation with heat buffer diagram ...

Страница 14: ... C7 external sensor C8 room sensor C9 feeder sensor F flame sensor P1 dispenser feeder P2 burner feeder G heater P1 CH pump P2 HW dispenser charging pump P3 HW circulating pump P4 buffer pump M1 mixing valve actuator Figure 5 Hydraulic installation without heat buffer diagram ...

Страница 15: ...info or help screen 4 Exits the menu Main menu Main menu description Main menu 1 Calculated burner output 2 Flame brightness 3 Dispenser feeder operating conditions 4 Burner feeder operating conditions 5 Fan operating conditions 6 Heater operating conditions 7 Measured boiler temperature 8 Calculated boiler temperature 9 Boiler gas measured temperature ...

Страница 16: ...HW circulating pump operating conditions 21 HW tank loading pump operating conditions 22 Circulating pump turned off 23 HW circuit turned off CH sensor not connected 24 Measured hot water temperature C Info window 25 Measured external temperature displayed for CH circuit type no 3 and 4 26 Day of the week display i e 1 Monday 7 Sunday 27 Clock 28 Measured room temperature displayed for CH circuit ...

Страница 17: ... most frequent used functions of the regulator are put in m Symbols Turning on the boiler 1 Prior to turning on the boiler make sure there is fuel in the burner To do so turn on the burner for a short period of time Manual mode Manual control 2 Activating the turn on process Symbols Turning on 3 Information about the turn on state on the screen 4 The regulator will finish the turn on process after...

Страница 18: ...t option the regulator controls the burner and the feeders For the Wood option the regulator controls only the blower the turn on and turn off options do not work Time settings Time setting in the controller The date needs to be set in the advanced menu Clock History and statistics 1 Stages of browsing history and statistics 1 External temperature axis 2 Date 3 Hours 4 Next 5 Displayed data on cha...

Страница 19: ...trol settings on fuel consumption The controller shows total fuel consumption in a given period and average burning per hour Moreover data work history can be saved to an SD card and analyzed on a PC SUMMER WINTER modes Select the operating mode This option chooses the operating mode though it is possible to choose the AUTO mode more on SUMMER WINTER AUTO Manual mode The manual control mode is use...

Страница 20: ...ve device Symbol Description Additional information Fan Fan power setting Feeder Exchanger pump HW pump HW circulating pump CH pump Mixing valve mixing valve open position mixing valve closed position Dispenser feeder Heater ...

Страница 21: ...lows reading current temperatures on sensors connected to the boiler Translation Boiler feed 56 C Boiler return 41 C Feeder 24 C CH 38 C HW 32 C Furnace gas 123 C External 24 C Internal no 1 open Buffer upper 35 C Buffer lower 29 C ...

Страница 22: ... Setting the FLAME FEEDING TIME to zero will immediately stop the burner after heating the boiler to the set temperature The feeding function operation is recommended in the winter period For this setting the burner does not stop automatically this can be done manually by selecting the STOPPING option in SYMBOLS If the flame turns off the controller reports an error and stops the burner control To...

Страница 23: ...e of fuel and chimney draught A too long operation time may damage the heater Set the heater operation time according to documentation After the maximum heater operation time passes the regulator will turns off the heater and go to the next step of the turn on procedure The heater will be turned off earlier when the light sensor detects a flame in the burner This parameter specifies the flame brig...

Страница 24: ...imum output it will be switched to the feeding mode when the boiler temperature exceeds the set hysteresis value The burner will be turned off if the temperature increases further When the set temperature is exceeded by a value of 2x hysteresis the hysteresis will turn off the burner Set the parameters of the burner to values that allow for proper operation for about 20 of rated power of the burne...

Страница 25: ...he minimum output settings Parameter settings must be made after heating the boiler and an additional reduction of preset boiler temperature for the control time This way the burner adjustment time can be prolonged Attention should be paid to stable operation of the fan It may happen that when the output is low the fan stops which can lead to its damage On the other hand high airflow will burn the...

Страница 26: ...s not operating 2 Modulated operation a signal from the room thermostat activates the intermittent operation discussed further 3 0 block the room thermostat has no influence on the operation of the CH pump This setting is recommended if the installation is extensive and the modulated operation of the pump cannot heat distant radiators The aim of modulated operation of the CH pump is to lower radia...

Страница 27: ...mber the controller maintains a minimum temperature in the boiler see the minimum temperature parameter SUMMER WINTER AUTO2modes This parameter is used to manually switch the regulator into the SUMMER or WINTER mode Moreover the AUTO mode can be chosen the controller will automatically switch into the WINTER or SUMMER mode based on the outside temperature In the summer mode only Hot Water is opera...

Страница 28: ...isplayed in the upper right corner of the display AUTO temperature SUMMER WINTER This parameter is used only when the Service turns on the operation with the external sensor Moreover the user must select the AUTO MODE menu Advanced CH circuit Summer Winter AUTO mode When the external temperature exceeds the set value the regulator switches to the SUMMER MODE When the temperature drops it switches ...

Страница 29: ... that the dispenser loading process will be turned on when the temperature drops 10C below the set CH temperature and ends when the dispenser temperature is about 10C higher than the set value CH program The regulator requires setting the CH heating program for each day of the week The user can choose from three default programs and two user programs The following are the default programs Pr 1 5 3...

Страница 30: ...or in an appropriate place on the timeline turn the knob pressing the knob to activate the area selection mode to choose the area during which the HW will be heated and moving the cursor turn the knob The area selection mode will be deactivated after pressing the knob again and deleting the previously selected heating area Note It should be noted that the HW circulating pump which is to provide ho...

Страница 31: ...lity cooling Clock The regulator has a clock powered by a special high capacity condenser After a power failure the clock continues to run for about two hours After discharging the energy source the time and date need resetting Time setting Set the hour and minutes Date setting The regulator requires the user to set the year month and day of the month Based on this data it sets the day of the week...

Страница 32: ... Buffer pump The aim of this parameter is to protect the boiler from dewing Maximum temperature This parameter limits the upper temperature of the boiler Exceeding this value exits the burning phase to feed or stop the boiler depending on other settings The parameter value should take into account boiler inertia matching boiler output to installation demands so that in the extreme situations after...

Страница 33: ...n the set temperature it starts the burner feeder to put fuel into the boiler Dispenser feeder capacity To calculate the burner output and fuel consumption the amount of pellets feed needs to be calculated After disconnecting the pipe that feeds the pellet to the burner manually run the dispenser feeder and start the timer This way pellets can be poured into a vessel for example for 10 minutes and...

Страница 34: ... valve reaction time is necessary when the valve operates with high frequency over regulation or very slow Generally for a properly chosen valve there is no need to change this parameter The default setting equals five and this is an average value The operation of the valve can be slowed down by changing the parameter to e g 2 To make the reaction faster we change the parameter to 7 The range is f...

Страница 35: ...ilding 2 It is required to mount the room sensor do not mount near heat sources HW circuit HW priority HW priority means the HW heating needs to be turned off until the HW dispenser is heated up HW additional boiler temperature The boiler temperature during HW heating in the summer period and for the active HW priority is determined as follows the value of a current parameter is added to the HW te...

Страница 36: ...ed heat is used in the CH installation This allows the most efficient use of fuel because these are the conditions in which the greatest efficiency of the burner can be obtained In this example boiler control differs from operating without the buffer What is important the boiler does not often start up and runs in long cycles mostly at maximum output The boiler temperature is automatically set to ...

Страница 37: ...service Set the hour to end the buffer loading service see Operation modes Minimum temperature of pumps In a situation when the upper buffer sensor measures a temperature that is lower than the set temperature the CH pump will be blocked This eliminates needless consumption of electric energy if the buffer is discharged Automatic upper temperature When this option is activated the regulator will a...

Страница 38: ...38 All possible regulator settings will be restored to factory settings after entering the SERVICE option entering the heating device MANUFACTURER S password and choosing the DEFAULT SETTINGS ...

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