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KONVEKTA FR4.1, Instructions For Installation And Service

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KONVEKTA FR4.1 Instructions For Installation And Service Download Page 1

Konvekta AG 

Am Nordbahnhof 5 
34613 Schwalmstadt  
Germany 
 
Tel.: +49 ( 0 ) 66 91 / 76 – 124 
Fax:  +49 ( 0 ) 66 91 / 76 - 200 
E-Mail:  [email protected] 
 

 www.konvekta.com  

 

 
 
 
 
 
 
 
 
 
 
 

 

 

Instructions for 

installation and service 

for control unit 

FR4.1 

   

 

 

    12 - 24 Volt DC 

ID#: 11002347AA 
Version: A00 

Vailed from 08/2014

 

 

Summary of Contents for FR4.1

Page 1: ...13 Schwalmstadt Germany Tel 49 0 66 91 76 124 Fax 49 0 66 91 76 200 E Mail tkd konvekta com www konvekta com Instructions for installation and service for control unit FR4 1 12 24 Volt DC ID 11002347AA Version A00 Vailed from 08 2014 ...

Page 2: ...s and signals 8 5 Adjustment of Parameters in the menu 9 5 1 Example for change of a parameter here parameter defrost interval d dı 9 5 2 Conversion to cooling with recirculated air defrosting or replace a FR1 FR2 FR3 or FR4 9 5 3 Conversion to cooling heating with hotgas defrosting with hotgas 10 6 Control of defrosting 10 7 Configuration of the parameters with FR 4 copy key 11 8 Logic Explanatio...

Page 3: ...Screw terminal block 2 5mm2 wiring Power supply 12 24 V AC DC 10 10 Power consumption 3 VA max Display 3 digit blue LED height 12mm Inputs 2 x PTC sensor Relay outputs compressor Relay NOC normally open contact 16 A defrost Relay change over contact 8 A fans Relay NOC normally open contact 5 A Data storage non volatile memory EEPROM Operating temperature 0 50 C Storage temperature 10 60 C Humidity...

Page 4: ...ollowing functions can be adjusted room temperature only refrigeration or refrigeration and heating with hot gas automatic defrosting hot gas or recirculating air manual defrosting hot gas or recirculating air Faults are shown in the display via flashing indication see point 4 This present instructions for installation and service is amended by the operating in structions for refrigeration units K...

Page 5: ...re should be between 0 und 50 C Please avoid intense vibration aggressive gases high fouling or humidity You have to care for enough air circulation at the air slots Electrical connections The control unit FR4 1 is provided with screw terminals for a wire diameter of 2 5mm2 Before voltage supply is connected please make sure that the auxiliary energy complies with the instru ment s requirements Pl...

Page 6: ... temperature setpoint Indication of temperature setpoint Press button P The display shows alternately SP and the current adjusted set point Change of the setpoint To change the setpoint you have to press buttonUP or D within 15 seconds until the desired setpoint is indicated Confirm with P Attention The new value will be automatically adopted and stored if it is not confirmed within 15 seconds 2 5...

Page 7: ... setpoint using the arrow keys 25 to 30 C Now press button once and the new value will be stored Attention The new value will be automatically adopted and stored if it is not confirmed within 15 seconds In refrigeration operation the room temperature is indicated LED s for compressor Comp and fans F an are illuminated Drive operation Stand by operation start vehicle engine see original operating i...

Page 8: ...ess button twice Now the operating hours of the refrigeration unit since the last service are indicated for approx 5 seconds 3 5 Sampling of the temperature values of room sensor and evaporator sensor Press button once the display shows alternately blinking Pr 2 and the measured evaporator temperature By pressing button once again Pr1 is indicated in the display alternately blinking with the measu...

Page 9: ...tton you open this group First the display showsarameter d dt blinking By pressing buttons and you can choose paramenter d dı parameter d dı is now blinking in the display By pressing button once the current setting is shown d dı and the adjusted value 1 30 are blinking alternately Now the value can be changed The new value is stored by leaving the parameter with You can leave the parameter with b...

Page 10: ...ecirculated air defrosting the following parameters have to be changed parameter d dt in group dF has to be changed from in to FdE parameter d td in group dF has to be changed from 1 to of parameter F Fd in group Fn has to be changed from 1 to of If no evaporator sensor has been installed e g replace FR1 the parameter PR 2 in group ı P2 has to be changed from on to of The preadjusted maximum defro...

Page 11: ...configuration has already been loaded in case of green blinking or red blinking LED there is no valid configuration 5 Press button on FR4 copy key 6 Check the LED signal After pressing the button the LED will be red and after successful data transmission the LED will be green 7 Now FR4 copy key can be plugged off If this configuration which has been loaded to the FR4 copy key should now be transmi...

Page 12: ... on FAN active fan on DEF inactive magnetic valve on Recirculated air defrosting COMP inactive compressor off FAN active fan on DEF inactive magnetic valve off 8 3 Neutral zone cooling heating with hot gas and defrosting with hot gas see changes in parameters point 5 3 Cooling valid if SP HI COMP active compressor on FAN active fan on DEF inactive magnetic valve off Heating valid if SP LO COMP act...

Page 13: ...rt 9 1 Connection diagram 9 2 Parameter chart Group SP parameter of the setpoint refers to Pr1 Par Description Range factory setting S SA Active setpoint 1 2 1 SP Setpoint 1 S LS S HS 1 0 SP2 Setpoint 2 S LS S HS 0 0 S LS Minimum setpoint 58 S HS 25 0 S HS Maximum setpoint S LS 302 30 0 ...

Page 14: ...al zone Heating r Fu Operating mode outlet OUT control mode H heating C cooling Nr neutral zone H C nr C C nr r HI Limit value at high temperature relative on SP switching on cooling 0 30 C F 2 0 2 0 r LO Limit value at low temperature relative on SP switching on heating 0 30 C F 2 0 2 0 r SL Limit temperature switching on heating depending on setpoint if the setpoint is under the current value r ...

Page 15: ...ing oF 99 5 hrs min 1 30 1 30 1 30 1 30 1 30 d dE Maximum duration of a defrost cycle dEF on duration of defrosting if not interrupted by Pr2 d tE d tS 0 01 99 5 min se c 15 0 15 00 15 00 15 00 15 00 d tE Defrost limit temperature if the temperature Pr2 is higher than the adjusted value d tE then dEF will be switched off 58 302 C F 8 0 8 0 8 0 8 0 8 0 d tS Defrost switch on temperature temperature...

Page 16: ... not indicate this rise the functions con tained in the parameters d dL display lock during defrost cycle and d Et display unlock difference after finished defrost cycle are used The parameter d dL Lb causes the indication dEF during a defrost cycle Completion of defrost cycle the indication PdF is suppressed as the temperature Pr1 is always under the value SP d Et 0 30 C F 30 0 30 0 30 0 30 0 30 ...

Page 17: ...n Fan always off temperature within fan line on Fn dF connected dEF on fan on dEF off fan off of fan FAn always off Only visible if defrosting mode d dt EL or in If defrosting mode is d dt FdE then it is hidden and fan Fan always on on oF oF oF oF F FL Top limit temperature fan if temperature Pr2 is higher than adjusted value FLt then fan is off upper limit fan line consider F FL F LF 58 302 C F 5...

Page 18: ...iption Range factory setting o o1 Operating configuration outlet OUT1 Ot temperature control compressor Refers to Pr1 SP r HI r LO dF defrost instrument Fn fans Au auxiliary outlet At confirmable alarm pressing of any button always resets the alarm AL standard alarm An stored alarm alarm remains in the background also if alarm does not exist any more reset with any button only if alarm condition i...

Page 19: ... 3 4 4 t PP Password for access to operating parameter oF 999 213 t Sr Service hours counter If the programmed value is exceeded SEr will be indicated in the display for approx 5 seconds This will be indicated with every switching on of the FR4 as long as the current value is than the pro grammed value Example if 200 was programmed then 200 x 10 2000 oF 999 x 10 2000 t rS Reset service hours count...

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