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ReFreeX user manual for H425V3

1. ZerrexX E A H425V3 User manual ID MICHELETTI IMPIANTI doc H425V3 Contents Contents 1 Parameter list 2 Parameter remarks 3 Alarm list 4 Slave alarm list 5 Button list 6 Led list 7 Soft command list 8 How to 9 Shortcut list 10 Led and push button location The IATEX source of this document has been automatically produced by 4 13 22 on 2015 11 27 page 2 9 ID MICHELETTI IMPIANTI 1 Parameter list Rem Parameter M__ MU _ MLO MLb MLd 1 Mdo 1 Mdl MHO 2 MLH MLL MHH MHL 3 MU1 MU2 4 MU3 Mut 5 MM1 MM2 MM3 6 MMH T MMd nc ncH 8 ncr 9 ncU ncd n1H niL n2H n2L n3H n3L n4H n4L b1 bic b1A b2_ b2C b2A b3_ b3C b3A b4_ bac b4A b5_ b5C b5A b6_ b6C b6A b7_ b7C b7A b8_ b8c b8A Ll L1H Lid L2H L2d L3H L3d L4H Lad Description Functions about compressor Functions about pressure switches suction low pressure regulation similar to Danfoss RT1AL set point minus half of neutral zone ests pressure regulation dead band MLO MLb are the upper lower limits suction pressure regulation differential loading at MLO MLb MLd unl at MLO MLb MLd se HP LP difference to unload last compressor still running minimum HP LP difference to leave all the compressors off discharge HP pressure limit forcing the timed compressor unload low pressure safety restart similar to Danfoss KP15 Ip set point low pressure safety stop similar to Danfoss KP15 Ip set po
2. 0 0 bar 0 0 bar 0 0 bar 0 0 bar on 30 00 dd hh mm ss on 30 00 dd hh mm ss on 30 00 dd hh mm ss on 0 194 4 20 15 1 00 00 dd hh mm ss The IATEX source of this document has been automatically produced by 4 13 22 on 2015 11 27 page 3 9 j I f Q i U ID MICHELETTI IMPIANTI doc H42 Rem Parameter Description Minimum Maximum Default Unit L5H enable digital input 5 alarm compressor phase monitor thermal overload relay oFF _on on L5d digital input 5 alarm delay 0 194 4 20 15 1 dd hh mm ss Lo_ On stand by status 10 Loo actual status stand by or on oFF _on oFF d Functions about delays dF Delay from previous stop dF4 mci start delay 0 194 4 20 15 5 00 dd hh mm ss dF5 mc2 start delay 0 194 4 20 15 10 00 dd hh mm ss dF6 mc3 start delay 0 194 4 20 15 15 00 dd hh mm ss dS4 mci stop delay 0 194 4 20 15 45 dd hh mm ss dS5 mc2 stop delay 0 194 4 20 15 30 dd hh mm ss dS6 mc3 stop delay 0 194 4 20 15 15 dd hh mm ss F Functions about cooling capacity boost FP _ Functions about boost preference FPP boost mode 0 off 1 on 2 auto 0 255 2 FPM boost mode when not enough info is received O off 1 on 0 255 1 FPd delay before establishing that not enough info is received 0 194 4 20 15 5 00 dd hh mm ss FM _ Functions about pressure switches in boost mode FMO suction low pressure regulation 0 0 99 0 1 8 gauge bar FMb suction pressure regulation dead band 0 0 99 0 0 5 bar FMd sucti
3. EOE duration of value display during rotation 0 255 2 Ely Functions about display rotation when EYr 2 repeated for each parameter Eld duration of label display during rotation 0 255 1 Elt label text during rotation 000 yyy ot E1E duration of value display during rotation 0 255 0 E2_ Functions about display rotation when EYr 2 repeated for each parameter E2d duration of label display during rotation 0 255 1 E2t label text during rotation 000 yyy di E2E duration of value display during rotation 0 255 0 E3 Functions about display rotation when EYr 2 repeated for each parameter E3d duration of label display during rotation 0 255 1 E3t label text during rotation 000 yyy SU E3E duration of value display during rotation 0 255 0 EA Functions about display rotation when EYr 2 repeated for each parameter E4d duration of label display during rotation 0 255 1 E4t label text during rotation 000 yyy ol E4E duration of value display during rotation 0 255 0 E5 Functions about display rotation when EYr 2 repeated for each parameter E5d duration of label display during rotation 0 255 1 E5t label text during rotation 000 yyy o2 E5E duration of value display during rotation 0 255 0 E6 _ Functions about display rotation when EYr 2 repeated for each parameter E6d duration of label display during rotation 0 255 1 E6t label text during rotation 000 yyy 03 E6E duration of value display during rotation 0
4. 0 99 0 26 0 gauge bar A3L fan 3 stop pressure 0 0 99 0 24 0 gauge bar A4H fan 4 start pressure 0 0 99 0 27 0 gauge bar A4L fan 4 stop pressure 0 0 99 0 25 0 gauge bar HS Delays in hot gas mode HSO minimum stop delay for the last mc still running 0 194 4 20 15 2 00 dd hh mm ss Po Functions about master preferences Pd Functions about network address PdM master address for global network communication 0 254 1 PdS number of slaves connected to this master 1 2 2m Pb_ Suction pressure broadcast PbH enable suction pressure periodic broadcast over the PC net oFF _on on Pbd delay between pressure broadcast messages 0 194 4 20 15 30 dd hh mm ss Pbb delay between latest received message and broadcasting start 0 194 4 20 15 2 00 dd hh mm ss PbO specify originating address in the pressure message oFF _on on Pb1 broadcast a packet with low pressure and without additional info oFF _on oFF Pb2 broadcast a packet with low pressure and additional info oFF _on _on PPM become network master after Pbb delay oFF _on oFF P2H poll periodically second central unit for pressure broadcast oFF _on oFF P2M master address of second central unit 0 254 2 P2d delay between pressure broadcast messages of second central unit 0 194 4 20 15 30 dd hh mm ss P3H poll periodically third central unit for pressure broadcast oFF _on oFF P3M master address of third central unit 0 254 3 P3d delay between pressure broadcast messages of third central unit 0 194 4 20 15 30 d
5. B1 to exit immediately without saving any parameter Show or change pressure set Press shortly B6 the display shows the current set point change it by B2 and B5 and confirm it by B6 As alternative enter the menu program as explained above modify the parameter MLO then confirm it 9 Shortcut list Buttons to press Shortcut description keep pressed 5 seconds This instrument has no further shortcuts The IATEX source of this document has been automatically produced by 4 13 22 on 2015 11 27 page 8 9 ID MICHELETTI IMPIANTI 10 Led and push button location LI L2 L3 L4 Lo Lo L7 ee E 82 0 The IATEX source of this document has been automatically produced by 4 13 22 on 2015 11 27 page 9 9
6. source of this document has been automatically produced by 4 13 22 on 2015 11 27 page 6 9 ID MICHELETTI IMPIANTI doc H425V3 Rem Parameter AUNES o MH BOLON 12 3 Description Minimum Maximum Default Unit F9d duration of label display during rotation 0 255 1 F9t label text during rotation 000 yyy 4L F9E duration of value display during rotation 0 255 0 Eb _ Functions about buzzer EbH enable buzzer 0 1 1 EFT Functions about slave default EFF reload slave default parameters from EEPROM at next restart 0 1 0 Parameter remarks Remark To ensure operation in extreme winter conditions respect to normal ones compressors may be switched on sooner and off later When MLH lt MLL there is a delay of 10 MLL MLH seconds on Ip switch Eventual pumpdown restart is over MLH 1 bar Fixed time 120 s and manual reset In H425V3 starting from revision 03 when MU1 and MU3 are 5 0 and b4A and b6A are oFF use 5NTC controller for compressors without oil pump connect HP probe on AN 6 and LP on AN 7 Caution Selection by manual override forces compressor to run whatever the high and low pressure no safety is left except hardware ones In slave mode the output is used for partialization In kriwan mode output is off for reset during stand by Caution The external override drives the compressors ignoring high and low pressure no safety is left except hardware ones It is recommended to close this contact passing through
7. 255 0 E7_ Functions about display rotation when EYr 2 repeated for each parameter E7d duration of label display during rotation 0 255 1 E7t label text during rotation 000 yyy HP E7E duration of value display during rotation 0 255 4 E8 _ Functions about display rotation when EYr 2 repeated for each parameter E8d duration of label display during rotation 0 255 1 E8t label text during rotation 000 yyy LP E8E duration of value display during rotation 0 255 4 E9 Functions about display rotation when EYr 2 repeated for each parameter E9d duration of label display during rotation 0 255 1 E9t label text during rotation 000 yyy DET E9E duration of value display during rotation 0 255 4 FO Functions about display rotation when EYr 2 repeated for each parameter FOd duration of label display during rotation 0 255 1 FOt label text during rotation 000 yyy Lb FOE duration of value display during rotation 0 255 0 al Functions about display rotation when EYr 2 repeated for each parameter Fld duration of label display during rotation 0 255 1 Fit label text during rotation 000 yyy Ld FIE duration of value display during rotation 0 255 0 E20 Functions about display rotation when EYr 2 repeated for each parameter F2d duration of label display during rotation 0 255 1 F2t label text during rotation 000 yyy 1H F2E duration of value display during rotation 0 255 0 38 Functions about display rotation when E
8. Functions about display rotation when EYr 1 duration of label display during rotation Minimum 55 0 55 0 55 0 oFF oFF oFF oFF oFF oFF O OIS OG OS Olg oO oO Maximum Default Unit 145 0 145 0 145 0 30 0 30 0 30 0 30 0 30 0 on on on on on 255 255 on on on on on on on on on on 999 0 999 0 999 0 999 0 999 0 999 0 999 0 999 0 999 0 999 0 999 0 255 255 255 255 on on on _on _on 255 255 194 4 20 15 194 4 20 15 _on 194 4 20 15 _on 194 4 20 15 194 4 20 15 194 4 20 15 194 4 20 15 194 4 20 15 255 255 255 255 255 255 2 255 55 0 C 55 0 C 55 0 C 0 0 gauge bar 0 0 gauge bar 0 0 gauge bar 0 0 gauge bar 0 0 gauge bar oFF oFF oFF oFF oFF oFF oFF oFF oFF oFF oFF oFF oFF oFF oFF n S gt gt gt gt gt gt 0 0 gauge bar 999 0 bar 999 0 bar 0 0 gauge bar 0 0 gauge bar 0 0 gauge bar 0 0 gauge bar 0 0 gauge bar 0 0 gauge bar 0 0 gauge bar 0 0 gauge bar e 7 T DI ZI DI I m 0 dd hh mm ss 0 dd hh mm ss oFF 0 dd hh mm ss oFF dd hh mm ss dd hh mm ss dd hh mm ss dd hh mm ss dd hh mm ss OIJ OG O oig oO gt O gt The IATEX source of this document has been automatically produced by 4 13 22 on 2015 11 27 page 5 9 J1 D I I Q i U ID MICHELETTI IMPIANTI oc H42 Rem Parameter Description Minimum Maximum Default Unit
9. Yr 2 repeated for each parameter F3d duration of label display during rotation 0 255 1 F3t label text during rotation 000 yyy IS jf F3E duration of value display during rotation 0 255 0 Fa Functions about display rotation when EYr 2 repeated for each parameter F4d duration of label display during rotation 0 255 1 F4t label text during rotation 000 yyy 2H F4E duration of value display during rotation 0 255 0 F5_ Functions about display rotation when EYr 2 repeated for each parameter F5d duration of label display during rotation 0 255 1 F5t label text during rotation 000 yyy ale ji F5E duration of value display during rotation 0 255 0 FO _ Functions about display rotation when EYr 2 repeated for each parameter F6d duration of label display during rotation 0 255 1 F6t label text during rotation 000 yyy 3H F6E duration of value display during rotation 0 255 0 F7_ Functions about display rotation when EYr 2 repeated for each parameter F7d duration of label display during rotation 0 255 1 F7t label text during rotation 000 yyy 3L F7E duration of value display during rotation 0 255 0 FS Functions about display rotation when EYr 2 repeated for each parameter F8d duration of label display during rotation 0 255 1 F8t label text during rotation 000 yyy 4H F8E duration of value display during rotation 0 255 0 F9 Functions about display rotation when EYr 2 repeated for each parameter The IATEX
10. both contacts of a low pressure and high pressure switch like a kp15 The closed contact is interpreted as load while the open contact is neutral The delays dF4 through dF6 are respected After the delay elapsed the override forces a load Automatic reset When speed regulation is off the fan is operated on off Caution Speed regulation can cause fan fault or electronic board fault Low and average minimum speed can increase the risk Passing from stand by to on and at power on there is a 5 second delay spent in a virtual stand by In H425V3 starting from revision 02 when PO3 is 4 OUT 3 drives the subcooler liquid solenoid AN 1 input is the subcooler suction temperature Mut is the wanted overheating where 8 0 C means 8 0 C maximum overheating is fixed at 99 0 C minimum overheating is fixed at 6 0 C n4H is the refrigerant type where 0 1 bar means R404A n4L is the cycle period where 0 8 bar means 8 s H4H is the initial on time where 0 5 bar means 5 s H4L is the adaptation speed where 0 8 bar means 8 To turn off the subcooler solenoid set PO3 to 5 The subcooler is enabled just when all of the available motorcompressors are on The minus sign on display signals that output is going to start after a delay Alarm list Display Alarm A01 mc 1 alarm Pressure switch thermistors or any other compressor safety device has disconnected A02 mc 2 alarm Pressure switch thermistors or any other compressor safety device has di
11. d L1 L2 L3 L4 L5 L6 L7 esc silence up on stand by left down right menu set Led list compressor 1 compressor 2 compressor 3 condenser fan 1 condenser fan 2 condenser fan 3 condenser fan 4 Function Exit without saving from any menu alarm buzzer silence Up navigation in the menu Toggle between on and stand by Left navigation in the menu Down navigation in the menu Right navigation in the menu display and modify the set point enter menu Function On during compressor run blinking slowly during activation and deactivation delay On during compressor run blinking slowly during activation and deactivation delay On during compressor run blinking slowly during activation and deactivation delay On during condenser run On during condenser run On during condenser run On during condenser run 7 Soft command list Soft command 4 Function skip mc delay Skip compressor delay 8 How to How to Switch between on and stand by Keep pressed B3 button to activate and deactivate stand by In stand by every output is leds from L1 to L7 Program the menu Function blink timers continue to count Keep pressed B6 to enter the menu Navigate up and down with B2 and B5 Select the submenu by B6 Change the parameter by B2 and B5 press B6 to confirm or B4 to go back without saving The changes will have effect after the exit from programming pressing B4 repeatedly Press
12. d hh mm ss PO_ Output assignment kl PO3 assign out 3 relay to O condenser fan 1 oil receiver solenoid 2 alarm 3 oil 0 3 0 heater 4 subcooler 5 off The IATEX source of this document has been automatically produced by 4 13 22 on 2015 11 27 page 4 9 ID MICHELETTI IMPIANTI doc H425V3 Rem Parameter I SA IAl IA2 1A3 1A4 IA5 IA6 IA7 1A8 Id Id1 Id2 Id3 Id4 Id5 OA _ OA1 OA2 Od 12 Od1 Od2 Od3 Od4 Od5 Od6 Od7 Od8 Od9 Odo OS _ OLO OLb OLd O1H O1L O2H O2L 03H O3L O4H O4L LLA OMO OM1 OM2 OML OMM OMH OMi OSF OSH OHd OHE OFM OFd ObH Obb OF4 OF5 OF6 OFO Oco OC1 OCH OCt OCF EYE EYY EYr EO E0d Description Functions about input output and machine state read only Analog inputs oil receiver temperature discharge temperature suction temperature oil pressure of mcl oil pressure of mc2 oil pressure of mc3 high pressure HP low pressure LP Digital input mcl hardware safety mc2 hardware safety mc3 hardware safety external override phase software safety Analog output condenser humidity 4 20 mA Digital output condenser fan 2 condenser fan 3 condenser fan 4 compressor 1 compressor 2 compressor 3 oil receiver solenoid eventually connected to OUT 3 alarm eventually connected to OUT 3 mcl oil heater eventually connected to OUT 3 digital output 3 Machine status actual set point actual dead band actual different
13. ial fan 1 start pressure fan 1 stop pressure fan 2 start pressure fan 2 stop pressure fan 3 start pressure fan 3 stop pressure fan 4 start pressure fan 4 stop pressure actual alarm read only 0 means no alarm suction low pressure regulation O unload 1 neutral 2 load number of running compressors number of available compressors low pressure is insufficient to load the first compressor low pressure is insufficient and is going to unload the compressors high pressure is excessive to load further compressors high pressure is excessive and is going to unload the compressors compressor forcing for extreme winter conditions boost mode hot gas mode timer to enter hot gas mode on in countdown mode timer to enter hot gas mode all in countdown mode not enough info is received timer for not enough info in countdown mode autonomous pressure broadcast over the PC net autonomous broadcast timer in countdown mode mcl timer in countdown mode mc2 timer in countdown mode mc3 timer in countdown mode timer of first scheduled compressor in countdown mode number of active rooms connected to this central unit and not lost number of rooms requiring liquid refrigerant number of rooms requiring hot gas number of rooms in turbo mode number of rooms in boost mode Functions about slave preferences Functions about display input to show on display 1 IA1 2 IA2 enable display rotation O off 1 all 2 selected
14. il pressure enable probe Probe nr 5 mc2 oil pressure enable probe Probe nr 6 mc3 oil pressure enable probe Probe nr 7 high pressure HP enable probe Probe nr 8 low pressure LP enable probe Functions about alarm and stand by Other alarm inputs enable mc1 alarm mcl alarm delay enable mc2 alarm mc2 alarm delay enable mc3 alarm mc3 alarm delay enable external override alarm override alarm delay Minimum 0 0 99 0 0 0 99 0 0 0 99 0 0 0 99 0 0 0 99 0 0 0 99 0 0 0 99 0 0 0 99 0 0 0 99 0 0 0 99 0 0 0 99 0 0 0 99 0 0 0 99 0 55 0 145 0 0 5 0 5 0 5 oFF _on 0 194 4 20 15 oFF _on oFF _on 0 255 0 0 99 0 0 0 99 0 0 0 99 0 0 0 99 0 0 0 99 0 0 0 99 0 0 0 99 0 0 0 99 0 0 0 99 0 99 0 99 0 oFF _on 99 0 99 0 oFF _on 99 0 99 0 oFF _on 99 0 99 0 oFF _on 99 0 99 0 oFF _on 99 0 99 0 oFF _on 99 0 99 0 oFF _on 99 0 99 0 oFF _on oFF _on 0 194 4 20 15 oFF _on 0 194 4 20 15 oFF _on 0 194 4 20 15 oFF on Maximum Default Unit 2 8 gauge bar 0 5 bar 0 2 bar 2 0 bar 0 5 bar 24 0 gauge bar 1 2 gauge bar 0 2 gauge bar 28 0 gauge bar 24 0 gauge bar 1 0 bar 1 0 bar 1 0 bar 25 0 C 2j ay 2 oFF 1 00 00 dd hh mm ss on Ton 40 2 0 gauge bar 6 0 gauge bar 2 0 gauge bar 7 0 gauge bar 5 0 gauge bar 8 0 gauge bar 6 0 gauge bar 9 0 gauge bar 7 0 gauge bar o o A BENE SA oO oO So DA w
15. int differential high pressure safety stop similar to Danfoss KP15 hp set point high pressure safety restart similar to Danfoss KP15 hp set point differential minimum oil differential pressure of compressor nr 1 minimum oil differential pressure of compressor nr 2 minimum oil differential pressure of compressor nr 3 minimum oil receiver temperature before opening the oil solenoid usage of mc nr 1 output O off 1 on 2 auto 3 slave no 4 slave nc 5 kriwan usage of mc nr 2 output O off 1 on 2 auto 3 slave no 4 slave nc 5 kriwan usage of mc nr 3 output O off 1 on 2 auto 3 slave no 4 slave nc 5 kriwan enable external load override on INP 4 external load override delay Functions about fans Functions about condenser fans enable condenser fans when compressor is off and discharge pressure is over maximum enable condenser fans speed regulation fan minimum speed minimum HP LP difference to keep on fans fan 1 start pressure similar to Danfoss KP5 set point active just when ncr is oFF fan 1 stop pressure similar to Danfoss KP5 set point differential fan 2 start pressure fan 2 stop pressure fan 3 start pressure fan 3 stop pressure fan 4 start pressure fan 4 stop pressure Functions about probe calibration Probe nr 1 oil receiver temperature enable probe Probe nr 2 discharge temperature enable probe Probe nr 3 suction temperature enable probe Probe nr 4 mc1 o
16. on pressure regulation differential 0 0 99 0 0 2 bar FF Delays in boost mode FF4 mci start delay 0 194 4 20 15 1 00 dd hh mm ss FF5 mc2 start delay 0 194 4 20 15 5 00 dd hh mm ss FF6 mc3 start delay 0 194 4 20 15 10 00 dd hh mm ss FS4 mci stop delay 0 194 4 20 15 5 00 dd hh mm ss FS5 mc2 stop delay 0 194 4 20 15 1 00 dd hh mm ss FS6 mc3 stop delay 0 194 4 20 15 30 dd hh mm ss H Functions about hot gas mode HP Functions about hot gas preference HPP hot gas mode 0 off 1 on 2 all 3 auto 0 255 3 HPM hot gas mode when not enough info is received O off 1 on 2 all 0 255 1 HPd delay to enter hot gas mode on 0 194 4 20 15 5 00 dd hh mm ss HPE delay to enter hot gas mode all 0 194 4 20 15 1 00 dd hh mm ss Hl Functions about condenser fans when hot gas mode on H1H fan 1 start pressure 0 0 99 0 12 0 gauge bar H1L fan 1 stop pressure 0 0 99 0 6 0 gauge bar H2H fan 2 start pressure 0 0 99 0 13 0 gauge bar H2L fan 2 stop pressure 0 0 99 0 11 0 gauge bar H3H fan 3 start pressure 0 0 99 0 14 0 gauge bar H3L fan 3 stop pressure 0 0 99 0 12 0 gauge bar H4H fan 4 start pressure 0 0 99 0 15 0 gauge bar H4L fan 4 stop pressure 0 0 99 0 13 0 gauge bar HA Functions about condenser fans when hot gas mode all A1H fan 1 start pressure 0 0 99 0 26 0 gauge bar A1L fan 1 stop pressure 0 0 99 0 20 0 gauge bar A2H fan 2 start pressure 0 0 99 0 25 0 gauge bar A2L fan 2 stop pressure 0 0 99 0 23 0 gauge bar A3H fan 3 start pressure 0
17. sconnected A03 mc 3 alarm Pressure switch thermistors or any other compressor safety device has disconnected A04 external override The external override contact is driving the controller A05 mc phase Compressor overload thermal relay disconnected or missing mains phase manual reset A06 mc 1 oil pressure Oil differential pressure remained under minimum value for 120 seconds manual reset A07 mc 2 oil pressure Oil differential pressure remained under minimum value for 120 seconds manual reset A08 mc 3 oil pressure Oil differential pressure remained under minimum value for 120 seconds manual reset A09 EEPROM invalid EEPROM invalid A10 EEPROM read start EEPROM read start failure A11 EEPROM read end EEPROM read end failure A12 EEPROM write start EEPROM write start failure A13 EEPROM write end EEPROM write end failure A14 EEPROM write max EEPROM failure reached the maximum number of writing attempts 4 Slave alarm list Display Alarm A96 slave EEPROM Failed write operation onto the slave EEPROM A97 out of range The slave address EdS might be out of the master range the latter going from 1 to PdS A98 no link The slave does not receive any message from the master A99 lost link The slave lost the communication with the master The IATFX source of this document has been automatically produced by 4 13 22 on 2015 11 27 page 7 9 ID MICHELETTI IMPIANTI doc Ha25V3 5 Button list Push button Bl B2 B3 B4 B5 B6 Le

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