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Standard Roof-top 1/4 compressors User manual - du

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1. Parameters used Main fan off delay T4 Fan off in defrost G4 Fan off from time band K2 The main fan is the device that starts first after the unit has been switched on After the unit has stopped the main fan will remain on even in the event of air flow alarms for a set time T4 The main fan can be forced off in the following cases e during the defrost G4 e when the unit is started based on daily time bands K2 The main fan can be activated by the digital output test procedure screen An is there are no alarms that disable it 10 8 Condenser fans Inputs used Defrost condenser temperature probe 1 Defrost condenser temperature probe 2 Devices used Condenser fan 1 Condenser fan 2 Parameters used Enable defrost condenser probe 1 Cg Enable defrost condenser probe 2 Ci Control C3 Type of control C3 Condenser fan set point G7 Condenser fan differential G7 Inverter speed limits G9 Minimum on time G9 Enable prevent Ga Prevent set point Ga Prevent differential Ga Prevent output delay Ga Coupled operation of the fans Gb Description of operation If the defrost condenser probes are not enabled the fans will operate as follows e Compressor On gt Fan On e Compressor Off gt Fan Off e Defrost On gt Fan Off CAREL code 030221501 Rel 2 5 of 17 11 08 32 If the defrost condenser probes are enabled the operation of the fans is determined by the Control a
2. ml a be o ct ol rn a oj oj be ala aja oO N N o K w oa B o v N K o alvola caldo Status of compressor 1 ON OFF This screen is enabled if the compressors are without capacity control a Status of compressor 2 ON Ts fatus of compresor ON OH Ts fatus of compresor ON OH ee compressor 1 ON OFF This screen is enabled if the compressors feature capacity control 3 Status ofcondenserfan OOOO zb aos of condenser o i E faus of reversing Tb ias of reversing Ti tas ofelecricheaterT Ti tas of deere Ie Status of the heating valve This is displayed both as a percentage and in graphic format on a 20 segment bar ent cond 1 ent cond 2 Umidificatore Modem Stato Recupero calore Rec rotativo Condizioni Rotore Doppia batteria Driver 1 Modalit EEV Posizione EEV Pot richiesta Driver 2 Modalit EEV Posizione EEV Pot richiesta Driver 1 SuperHeat Temp sat Temp asp Driver 2 SuperHeat Temp sat Temp asp Driver 1 Press evap Temp evap Temp cond Driver 2 Press evap Temp evap Temp cond Protezione D1 Basso SHeat Alta T cond R TR CAREL code 030221501 Rel 2 5 If Status of condenser fan 1 This is displayed both as a percentage and in graphic format on a 20 segment bar If Status of condenser fan 2 This is d
3. Lie ciaa gt Hans RH 10 19 Freecooling and freeheating control by enthalpy Freecooling and freeheating control by enthalpy means that the outside air damper is opened according to the inside and outside enthalpy conditions Inputs used Ambient temperature probe Outside temperature probe Ambient humidity probe Outside humidity probe Devices used Outside damper analogue output no 1 Parameters used Enable freecooling in cooling C4 Enable freeheating in heating C4 Enable humidity control function C6 Enable freecooling and freeheating by enthalpy C5 Active temperature control set point S0 S1 Active humidity set point S2 S3 Enthalpy differential Pi Description of operation The freecooling and freeheating control by enthalpy is enabled if the following conditions are always true the humidity management function is enabled on screen C6 manufacturer branch password protected the freecooling in cooling and freeheating in heating functions are enabled on screen C4 manufacturer branch password protected enthalpy control is enabled on screen C5 manufacturer branch password protected CAREL code 030221501 Rel 2 5 of 17 11 08 49 The ambient temperature and recirculation humidity are used by the controller to calculate the recirculation enthalpy 16 while the outside temperature and humidity are used to calculate the outside enthalpy 16 and the temperature and humidity set points a
4. button Yellow On Instrument correctly powered 2 2 3 Built In terminal with 6 buttons Given the number of buttons and LEDs available these have general meanings as described below LED Colour Description LG EE Red On One or more active alarm conditions button Enter Yellow On Unit on Flashing Unit off from supervisor or digital input Prg button On Displaying modifying the operating parameters Esc button Green On Main menu parameters displayed CAREL code 050221501 Rel 2 5 of 17 11 08 7 2 3 Functions of the buttons 2 5 1 PGDO terminal with 6 buttons ALARM UP PRG ENTER ESC DOWN Button Description ALARM displays the alarms mutes the buzzer and deletes the active alarms UP if the cursor is in the home position top left corner scrolls up the screens in the same group if the cursor is in a setting field increases the value DOWN if the cursor is in the home position top left corner scrolls down the screens in the same group if the cursor is in a setting field decreases the value ENTER used to move the cursor from the home position top left corner to the setting fields in the setting fields confirms the set value and moves to the next parameter PRG accesses the menu for selecting the group of parameters to be displayed modified access to the
5. C6 Description of operation The operating mode is selected performs on screen C6 manufacturer branch password protected The operating mode can be changed between cooling and heating in the following ways Control panel mode 15 button terminal to enter the desired operating mode press the corresponding button red button for heating operation blue button for cooling operation terminal with 6 buttons PRG button to enter the main menu select Cooling Heating and press ENTER on this screen each time ENTER is pressed the mode switches from cooling to heating and vice versa Digital input mode contact open cooling operation contact closed heating operation Automatic mode the unit switches from cooling operation to heating operation or vice versa based on the ambient air temperature Ta gt Cooling set point gt Cooling operation T lt Heating set point gt Heating operation 10 2 Unit ON OFF Inputs used Digital remote on off input not available on the pCO Parameters used Enable automatic restart after a blackout Pp Enable weekly time bands K6 Enable remote ON OFF Pp not available on the pCO Description of operation The unit can be switched on or off in the following modes from the panel using the ON OFF button 15 button terminal or on a screen accessible from the main menu UNIT ON OFF terminal with 6 buttons from the remote ON OFF digital input based on unit
6. W W Mar the right of the calibration field Defrost probe 1 calibration The probe reading is displayed to the EE 9 to 9 9 right of the calibration field E Defrost probe 2 calibration The probe reading is displayed to the 9 9 to 9 9 right of the calibration field Aj CO2 air quality probe calibration The probe reading is displayed to 99 to 99 the right of the calibration field Probe S2 calibration driver 1 9 9 to 9 9 o Probe S3 calibration driver 1 9 9 to 9 9 TERR Probe S1 calibration driver 2 9 9 to 9 9 EEUU RE Probe S2 calibration driver 2 9 9 to 9 9 as Probe S3 calibration driver 2 9 9 to 9 9 ima dz wir GE Rw a fp s3 RW EL AA A storico allarmi A A A Sd entil principale RW An 1 Ge SEI ES sonda qualita aria CO2 Offset sonde Drvl Offset sonde Drv2 R oe est the operation of compressor 1 Compressore 2 RW An Test the operation of compressor 2 Test dout Test the operation of compressor 3 Compressor 3 Teste operation of compresor sioni Test dout est the operation of reversing valve 1 alvola invers 1 est the operation of reversing valve 2 Aq Test the operation of electric heater 1 Resistenza 1 A Ar e pei EE an a Test dout Ar est the operation of the humidifier H Umidificatore M Teste operato of condenser fan T L O HE CAREL code 030221501 Rel 2 5 of 17 11 08 18 A A A A A A
7. manufacturer branch password protected the outside temperature ambient temperature freecooling differential Pi ambient temperature gt cooling set point offset see the figure STPE Cooling set point C DIF Freecooling differential C OFS Freecooling offset in cooling C Ambient temperature C If a positive offset is set freecooling can start after the set point ee OFS 10 9 2 Freeheating in heating mode The opening of the outside damper is controlled based on the ambient air temperature as shown in the following figure if the following conditions are always true the unit is in heating operation the outside temperature probe is enabled on screen C8 manufacturer branch password protected the freeheating function in heating is enabled on screen C4 manufacturer branch password protected outside temperature ambient temperature gt freeheating differential Pk ambient temperature heating set point offset see figure STPW Heating set point C DIF Freecooling differential C Tan C OFS Freecooling offset in heating C lt DIF A Tus Ambient temperature C The offset and differential parameters for controlling the opening of the damper can be set on screen PI user branch password protected For freeheating to be enabled the condition outside temperature ambient temperature gt freeheating differential must be satisfied The damper is 100
8. open when the ambient temperature is less than the Set point Offset differential It starts modulating from 100 to 0 when the ambient temperature increases from Set point Offset differential to Set point offset When the temperature is higher than Set point offset the damper is completely closed If a negative offset is set freeheating can be started before the set point CAREL code 030221501 Rel 2 5 of 17 11 08 34 10 9 5 Freecooling in heating mode Freecooling in heating mode is useful when the environment is overcrowded for example in shopping centres during operation in heating mode In these situations the temperature is always higher than the set point and there is the need to cool the environment in which case the outside temperature conditions are exploited as in winter these almost always favourable The opening of the outside damper is controlled based on the ambient air temperature as shown in the figure below if the following conditions are always true the unit is in heating operation e the outside temperature probe is enabled on screen C8 manufacturer branch password protected e the freecooling function in heating is enabled on screen C4 manufacturer branch password protected e the outside temperature lt ambient temperature freecooling differential STPM Control set point C DIFFM Control differential C Tus Ambient temperature C DC Damper closed DO Damper open ST
9. 1V 3 0 10V 4 4 20mA 5 0 20mA Outside relative humidity probe type 0 2 0 1V 3 0 10V 4 4 20mA 5 0 20mA Delay between compressor start and capacity control Type of fan control 0 Compressor Pressure 2 Temperature Compressor configuration 0 1 COMPRESSOR 2 1 COMPRESSOR 1 STEP 3 2 COMPRESSORS 4 2 COMPRESSORS 2 STEPS 5 4 COMPRESSORS Type of heat recovery CROSS FLOW 2 ROTARY 3 DOUBLE COIL Type of bypass damper No Digital Analogue NO 2 DIGITAL 3 ANALOGUE Flow switch alarm delay at start up n co WN NIN NINININ NIND ri esch o NID D Aa U N _ o co aia WG Number ofhesters E Type of heating 39 0 HEATERS ONLY 1 HEATING VALVE ONLY 2 HEATERS HEATING VALVE Date time setting hours 45 Compressor 1 operating hours high part 49 R Compressor 1 operating hours low pa 50 R Compressor 2 operating hours high part 51 R Compressor 2 operating hours lowpart 52 R Unit operating hours low pat 54 R Clock hou OR Clock da 57 R Clock ea I R Filter alarm delay RR Compressor operating hours 3 high pat 63 R Compressor operating hours 3 lowpart 64 R Compressor operating hours 4 high part 65 R Compressor operating hours 4 low pat ell Compressor 4 operating hour threshold x1000 68 RW Driver 1 firmware low pa o R Driver 2 firmware low ag 70 R Dri
10. 999 Serpoint This screen is displayed if heating valve control is enabled Heating valve control differential with heating set point 0 to 999 20 Pg CO2 air quality control set point 0 to 2500 ae screen is displayed if the c02 air quality probe is enabled a E Pa 002 ai qualiy contol derem pom os 39 Oa cntl dexdzone CITI __ rees differential for the acivation of freecooling and C 99 9 to 99 9 freeheating This screen is displayed if freecooling management is enabled i Enthalpy differential for controlling the opening of the damper kcal kg 999 9 to 999 9 This screen is displayed if freecooling by enthalpy is enabled Pj Outside freecooling damper control offset with cooling set point C 99 9 to 99 9 2 0 This screen is displayed if freecooling in cooling mode is enabled Outside freecooling damper control differential with cooling set 99 9 to 99 9 fee pont Outside freecooling damper control offset with heating set point SE 99 9 to 99 9 2 0 This screen is displayed if freecooling in heating is enabled Outside freecooling damper control differential with heating set 99 9 to 99 9 Bes 0 to 99 ES Minimum opening of the outside damper with unit ON na During start up or after a blackout the outside damper remains completely closed 0 Volt until the ambient temperature reaches the control set point Only in heating operation 0 Normal 1 Closed Force freecooling when starting the unit to refresh the
11. A A A A A A A A A g h i i k k k 1 IL 1 m o o D D q Test the operation of condenser fan 2 w Proc man driver 1 BIM As Manual procedure Driver 1 EEV operating mode Modalit EEV 0 AUTO 1 MAN Passi richiesti R W As Numberof manual valve opening steps Driver 1 0 to maximum number of steps i Posizione EEV R As Display current valve opening steps Driver 1 Proc man driver 2 R W At Manual procedure Driver 2 EEV operating mode Modalit EEV 0 AUTO 1 MAN Passi richiesti R W At Number of manual valve opening steps Driver 2 to maximum number of aS driver 2 Posizione EEV R At Display current valve opening steps Driver2 Driver 1 status Au Driver 1 status NO FAULT OPEN VALVE RESTART BATTERY Pee em Berens CHARGING EEPROM ERROR per A Ignorare m release Driver 1 when starting Driver 2 status NO FAULT OPEN VALVE RESTART BATTERY CHARGING EEPROM ERROR Manually release Driver 2 when starting Inserire nuova R W Aw Set new service branch password 0 to 9999 Password 20 71 MANUFACTURER loop MENU PROG buttons Screen for accessing the manufacturer branch HET 0 to 9999 T MES password Configurazione Z1 The manufacturer parameters are divided into four branches The tise UP amp DOWN buttons can be used to select the manufacturer Inizializzazione menu item and the Enter button accesses the selected branch of screens CC to 9 a b p
12. EVD400 electronic expansion valve iii 26 9 1 ef aif UTR Risac PLE 26 10 Ambient air temperature control ete ctetu SEET 27 10 1 Cooling Heating changeover iii ttn ntt ttti ttis ttt aratate tat tatarera ttt ttt ttt 27 10 2 Unit ONIOEE Seege 27 103 EDERT aset 28 10 4 Eoadisteps iu e ERE UE a ada Sic 28 10 5 DG EE 30 10 6 Reversing Solenoid Valves cesssssssssssssecsesssssessssssssesssessessecssesssssceseeseesseesessetssccenessessecseesstsscecesceesseesesseesscceesaeessecceeaeessectesseessecenneseetencnnesertecenneseetenssesseste 32 10 7 Main fan 32 10 8 3Gondernser EE 32 10 9 Freecooling control and freeheating by Temperature data tatrtnata aatre raeaas 34 10 10 Heating valve Control Retreat c i LL AE terere 36 10 11 Outlet temperature limit treo eto te PORRO OO Odd cea 37 10 12 ER COMMON EE 38 10 13 Notes on the relationship between the offset and differential settings for the heating devices and NEIE Ee 39 10 14 Set point comperisation oec epe E ER AA RAI aa 40 10715 HeatrecOVery ottenere clt la e ai cte dt dd c RA E enu RU eese 4l 10516 Re lee tele E 47 10 17 Post heating during dehumidification EE 48 a Dat Gel ie leiere aac 49 10 19 Freecooling and freeheating control by enthal 49 11 Alarm EA 51 11 1 Low pressure alarm circuit 1 2 in eoolmoibeatmng EE 52 11 2 Cooling set point less than heating
13. FAST CAREL code 050221501 Rel 2 5 of 17 11 08 23 Type of evaporator cooling Not selected PLATES SHELL amp TUBES FAST FINNED SLOW FINNED Caldo Q3 R W Type of evaporator heating Not selected PLATES SHELL amp TUBES FAST FINNED SLOW FINNED eet soon tempere aingmode lt RR P Minimum soraton temperare heating node C moms 59 Fe Minimum saturation temperature dost mode c momsos 59 aximum saturation temperature in cooling mode C 50 0t0900 500 aximum saturation temperature in heating mode C 50 0t0900 500 27 Maximum saturation temperature in defos mode C 5000800 f soo soglia allarme Alto SuperHeat Gea anual alarm threshold for high superheat 0 0 to 100 0 LS soglia allarme N1 to N9 ADVANCED PARAMETERS Modifica parametri essage to start the procedure for editing the AUTOSETUP settings AUTOSETUP PRG Continue ESC Back Circ EEV Ratio R Circ EEV ratio in automatic Auto to no 375 Cc EE Rao n manua Won __ Guadagno prop Auto N2 E Proporiona gin n automa RE e i e Uu Guadagno prop 57 Proportional gan in manual LD T u a amena LX beetet st pont Ci mamma TTT ex superponen e X ST TT X flow Superieatnatonate 7 TT EACE mv a LX beta set pont Cr mamma TTT Superheat set point C1 in manual 2C mem ESCE T
14. MANUFACTURER loop CONFIGURATION submenu Num compressori R W CO Number of compressors controlled 1 COMPRESS 1 COMP 1 1to5 1 COMP STEP 2 COMPRESSORS 2 COMP 2 STEPS 4 COMPRESSORS Numero circuiti R W CO The number of circuits will have a fixed value in the following 1 2 cases 1 compressor 1 circuit 4 compressors 2 circuits In the other cases the number of circuits is set by parameter bis Set capacity control logic N O Normally open Wa C Normally closed eee ILL Potenza equalizz RW Ci Enable capacity balancing p NI Pompa calore RW ci Enableheat pump operation II YN Logica valv inv RW C1 Setreversing valve logic N O Normally open N C Normally closed Valvola caldo RW C2 Enable heating valve ici wN DN Num resistenze RW C2 Set number of electric heaters oa o Tipo riscaldamento RW C2 Set type of heating HEATERS ONLY HOT Heaters only VALVE ONLY Heating valve only HEAT HOT VALVE Heaters Heating valve Enable post R W Cr Enable post heating during dehumidification Y N N heating in dehumidification En summer heating RW Cr Enableheatinginsummer YN N Regol vent cond RAW C3 Set type of condenser control BY COMPRESSOR BY By compressor PRESSURE BY By pressure TEMPERATURE By temperature ETT B type of condenser control MODULATING ON OFF EL in E E type of defrost control T
15. N ii 2 lt VALVE DIFF gt I I E LVE OFFSET HEATER DIFF 1 MAI 1 1 1 1 CAREL code 050221501 Rel 2 5 of 17 11 08 39 Example 2 Configuration 1 Comp Heating valve 1 Aux heater Parameters STP 21 C ZN 2 1 C BND 3 C VALVE_OFFSET 6 VALVE_DIFF 2 HEAT_OFFSET 11 HEAT DIFF 2 At the temperature of 21 1 3 17 C the compressor is started At the temperature of 21 7 2 15 C the heating valve is activated and starts modulating operation At the temperature of 21 11 10 C the heater is activated shutdown at 12 C The activation of the devices according to the above mentioned settings is represented in the following graph 10 14 Set point compensation Set point compensation allows energy saving when the outside temperature values are especially extreme compared to the needs of the controlled environment The compensation function varies the control set point according to the outside temperature Inputs used Outside air temperature probe Devices used Compressor no 1 Compressor no 2 Parameters used Enable compensation G1 Compensation set point in heating on outside temperature P6 Compensation band in heating on outside temperature P6 Maximum compensation in heating P6 Compensation set point in cooling on outside temperature P5 Compensation band in cooling on outside t
16. On Off weekly time bands from the supervisor if connected 10 2 1 ON OFF by button 1 15 button terminal the on off button on the front panel can be used to switch the unit on or off 2 Terminal with 6 buttons from the main menu select UNIT ON OFF and press ENTER each time ENTER is pressed the unit switches from on to off and vice versa If the unit has been switched off from the panel it cannot be activated with any of the other procedures digital input time bands supervisor If the unit is off all the functions and controls are disabled 10 2 2 Remote ON OFF not featured on pCOXS boards The unit switches on if are the following conditions are true the unit is switched on from the panel the digital input contact is closed The unit switches off if one of the following conditions is true the unit is switched off from the panel the digital input contact is open CAREL code 030221501 Rel 2 5 of 17 11 08 27 10 2 3 ON OFF by time bands The unit switches on if are the following conditions are true he unit is switched on from the panel he unit is activated by digital input if enabled he unit is fitted with the clock board he time band is active The unit switches off if one of the following conditions is true he unit is switched off from the panel he unit is deactivated by digital input if enabled he time band is inactive 10 2 4 ON OFF from supervisor and GSM The unit can be switch
17. PGD0 semi graphic 6 buttons 4 rows 20 columns connection with telephone cable 2 Built in 6 buttons 4 rows 20 columns pCO board only display on board The user terminal can be used to perform all the operations allowed by the application program installed The user terminal displays the operating conditions of the unit at all times The terminal can also be used to set all the unit operating parameters in real time It can be disconnected from the main board and in fact is not required for operation 2 2 LEDs 2 2 1 PGDO terminal with 6 buttons LED Colour Description Ds button Alarm Red On One or more active alarm conditions PRG button Yellow On Displaying modifying the operating parameters All the LEDs not described and located underneath the remaining 4 buttons indicate the correct power supply to the instrument Together with the backlighting on the display these will be switched off if no button is pressed on the keypad for 5 minutes 2 22 PGDO terminal with 15 buttons Each button has a green LED indicating the specific group of parameters selected during the operations to display modify the operating parameters The silicone rubber buttons have three different coloured LEDs whose meaning is specified in the following table LED Colour Description On Off button Green On Unit on Flashing Unit off from supervisor or digital input Alarm button Red On One or more active alarm conditions Enter
18. Sonda qualit Ce Tipo ii Ce Set type of CO2 air quality probe 0 1 V j 0 10 V j 4 20mA j 0 20mA 0 5 V 2000 Eme posa coa IRA Cf Set CO2 air quality probe lower limit 0 to 2000 Limite min Limite max rw Cf Set CO2 air quality probe upper limit 0 to 2000 2000 SEI WI GE Cg Set type of defrost probe 1 4 20mA 420m 0 5 V 05V Sbrinamento 1 Min GE TIE Lo ETE Tio ii Ci type of defrost probe 2 4 20mA 4 20mA 0 5 V 0 5 V CAREL code 030221501 Rel 2 5 of 17 11 08 20 Limiti sonda ag defrost probe 2 lower limit 99 9 to 99 9 EE Sbrinamento 2 Min Max RW_ O sedetost probe 2 upper Ti 3851999 300 calore R W Ck Set type of heat recovery unit CROSS FLOW 1 ROTARY DOUBLE COIL Serranda by pass RI Ca Select enable the type of bypass damper NO DIGITAL 2 rors ANALOGUE Posizione R W Ca Select the position of the bypass damper ON RECOVERY UNIT ADDITIONAL DAMPER Recupero calore R W Cn Set type of rotary heat recovery unit rotor digital for cross flow DIGITAL MODUL PADO poser recovery unit or the digital input to be used when the bypass damper is not on the recovery unit but is an additional damper Digital Analogue Logica uscita dig RAW Cn Heat recovery digital output logic 0 N O 1 N C Set rotary heat recovery unit rotor logic N O Normally open N C Normally closed Recupero calore Co Set minimum rotation sp
19. air in the environment Serr freecooling Setpoint estivo Offset Serr freecooling Setpoint invernale Offset ee Minima aperture Serr esterna Apertura invernale serr esterna H N D Fh H o D a a o p p 5 a E z mol m HEI FO 0 H FP ov ac o om a o Q RH o Gol 8 DR a Q N H Di o al B cej o H z w Time for forcing Time for forcing freecooling when starting the unit when starting the unit NEN to 999 Enable control during forced freecooling when starting meme Lo T Pn Defrost activation delay minutes 0 to 999 This screen is displayed if heat pump control is enabled Pn Maximum defrost duration minutes 0 to 999 If the defrost does not end by temperature it is stopped after this time has elapsed Pw Heat recovery activation set point If the difference between the E 0 to 99 9 outside temperature and the inlet temperature is equal to or greater than the temperature delta heat recovery is activate This screen is displayed if heat recovery is enabled Heat recovery control differential 0 to 99 9 i0 Px Heat recovery control by temperature differential 0 to 99 9 1 Heat recovery control by temperature dead zone 0 to 99 9 10 piff NZ rw P Heat recovery control by temperature differential 0 to 99 9 Bes Py Heat recovery control by enthalpy differential as 0 to 99 9 20 0 1 Heat recovery control by enthalpy de
20. fitted with the clock board Two types of time bands can be configured Weekly time bands Daily time bands 13 1 Weekly time bands The weekly time bands manage the activation and deactivation of the unit during the week separately from the daily ON OFF times Parameters used Enable weekly time bands K6 Unit activation Monday to Sunday K7 Description of operation The weekly time bands are active if the function has been enabled on screen K6 in the clock branch For each day of the week a parameter is set that manages the activation and deactivation of the unit At midnight each day the pCO checks the status of the variable and as a consequence switches the unit on or off Example Weekly time band function enabled Unit activation Monday ON Unit activation Tuesday ON Unit activation Wednesday ON Unit activation Thursday ON Unit activation Friday OFF Unit activation Saturday OFF Unit activation Sunday OFF In this configuration the unit will be On from Monday at 00 00 to Thursday night at 23 59 and then will be Off from Friday at 00 00 until Sunday night at 23 59 13 2 Daily time bands The daily time bands manage the control set point and the activation of the main fan as a consequence switching off all the devices on the unit Parameters used Enable daily time band K2 Shutdown main fan outside of the band K2 Daily time band start time K3 Daily time band end time K3 Set
21. for the air flow alarm in steady operation et the main fan off delay et the compressor start delay Off forzato Compressore Ritardo allarme Set the dirty filter alarm delay time filtro Ritardo partenza J R W T6 Setthe delay time between start compressor and start capacity tra comp e parz control Vo V1 to 2 MANUFACTURER loop INITIALISATION submenu Inserire nuova R W VO Set new manufacturer branch password password Premere ENTER Install default values per installare The UP 8 DOWN buttons can be used to select the menu item and the Enter button accesses the selected branch of screens valori di default F1 to Fc EVD SYSTEM PARAMETERS Erbe bate F2 R W Select the type of probes 2 ot selected CAREL code 030221501 Rel 2 5 of 17 11 08 he compressor off time during start and end defrost SHeat NTC P 4 20 mA SHeat NTC P rat SHeat NTC NTC SHeat PT1000 P SHeat NTC HT P rat PID Press PID NTC PID NTC HT PID PT1000 of driver NTOS3 Plrat gt S1 NTCsuct gt S3 NTCsat gt S1 PT1000 gt S2 Plrat gt S1 TCht gt S2 P rat gt S1 ion of the PID when the type of probe selected is PID Press DIR REV F 22 Set time between activations of different compressors E 0 to 9999 180 p ee 9 Lr ee p wm pw RM ME el S S S 070959 es S S eg NEN EN EC IESUS EVD400 pLAN 1 EVD400 tLAN pS f Tipo valvola F3 R W Type of
22. is enable or if post heating during dehumidification is enable or enable heating in summer heating valve control is enabled on screen C2 manufacturer branch password protected Heating valve or heater amp heating valve is selected on screen Cr manufacturer branch password protected STPW Heating set point C DIFFV Control differential heating valve C Tui Ambient temperature C OFSV Valve open temperature offset C Enabling the outlet temperature probe C9 automatically enables antifreeze control which involves opening the valve when the unit is off When the outlet temperature is less than the antifreeze set point set on screen PB the heating valve is progressively opened When the outlet temperature reached the antifreeze set point differential PB the valve will be open to the percentage set on screen PC On a graph VALVE OPENING STPA Antifreeze control outlet temperature set point C DIFFA Antifreeze control outlet temperature differential C VLVOP Heating valve opening during antifreeze operation unit Off If the outlet temperature falls below the antifreeze set point during normal heating operation with the unit on the opening of the valve for the antifreeze function is summed to the request in normal operation For the pCO3 Large board only digital output 17 is available which indicates the operating status of the valve On Off and can be used to activate a water circulating pump in the hea
23. normal control Po The forcing procedure can be terminated by pressing the ENTER button from the main screen MO During forced operation on screen M3 the status is displayed indicated by FORCED the main screen shows the message flashing ENTER STOP to terminate the procedure If the forcing procedure is not stopped manually it will end after the time set on screen Po 10 9 5 Force freecooling from CO2 probe This function is only available on the pCO3 board Inputs used e CO2 probe Devices used e Outside air damper Parameters used Enable air quality control Ce Select type of air quality probe Ce Air quality control set point Pg Air quality control differential Pg Air quality control dead zone Pg Description of operation If the CO2 probe is enabled and the unit is ON based on the CO2 conditions the outside air damper will be opened to introduce air that is normally cleaner fresher The request see the graph to the open damper due to a high CO2 level is summed to the normal temperature control request Air quality control graph ps SETP Control set point air quality ppm DIFF Control differential air quality ppm NZ Control dead zone air quality CO2 CO2 probe reading ppm OUT Outside air damper modulating output 1 1 i H H 1 H 1 1 1 1 H 1 1 H i H CO2 ppm fear E a a NZ DIFF E SETP CAREL code 030221501 Rel 2 5 of 17 11 08 35 10 9 6 Freecooling damper forced off
24. point inside the band in cooling K4 Set point outside the band in cooling K4 Set point inside the band in heating K5 Set point outside the band in heating K5 Description of operation The daily time bands can be enabled on screen K2 in the clock branch Setting the start band hours and minutes and the end band hours and minutes on screen K3 automatically identifies 2 zones one inside the band and one outside the band For each of these two zones two set points can be defined one for cooling operation and one for heating operation The shutdown of the main fan can be selected outside of the band CAREL code 030221501 Rel 2 5 of 17 11 08 54 14 Supervisor variables The pCO can be connected to a local or remote supervisor telemaintenance system used to control the unit The accessories available for the pCO boards include an optional RS485 serial communication board In this software version the baud rate can be set to the following values 1200 2400 4800 9600 or 19200 bps The variables sent to and received from the supervisor are shown in the tables below with reference to the following key R Read sent from the pCO to the supervisor R W Read writereceived from and sent by the pCO to the supervisor 14 1 Digital variables u Compressor 4 thermal overload alarm Inside temperature above the threshold alarm 56 Compressor 3 maintenance alarm 60 Heater 1 thermal overload alarm 66 L
25. set point alarm iii 52 11 9 Alarm Og it t o e NT 52 11 4 SMS on alarm 152 Del A 53 12 11 Gompressor and unit hour counter settings ee 53 12 2 Probe callbratlon E 53 T2 9 TOStilMPUtS OUt Det xni a a iii 53 13 13 1 13 2 14 14 1 14 2 14 3 SIEG me I E 54 Week UNS DAS aaa EE 54 Daily time bands Supervisor variables Digital AS a e dead e Analogue variables Integer aii dee 59 1 Introduction 1 1 Main new features in version 2 0 New functions 1 Implementation of compatibility with pCO 2 implementation of management of up to 4 compressors and 2 circuits 3 implementation of EVD400 management 4 implementation of heat recovery unit management 5 implementation of humidification management with analogue output pCO 6 antifreeze control with the unit off 7 air quality control CO and ambient cleaning 8 implementation of Spanish language 1 2 Main new features in version 2 1 New functions 1 Post heating during dehumidification management Bug fixed 1 With display 15 keys it was not possible to go into EVD menu 2 Check the BMS database dolete some dounble variable fix a problem on the summer winter change The data base is still compatible with old version 3 Improve the temperature limit management durino dehumidification 1 3 Main new features in version 2 2 This version is only for internal use 1 4 Main ne
26. settings manage the calibration and the type of probes connected Inputs used Ambient air temperature Outside air temperature Defrost condenser temperature no 1 Defrost condenser temperature no 2 Ambient air relative humidity Outside air relative humidity Supply air temperature Parameters used Ambient air temp probe calibration Af Outlet air temp probe calibration Af Outside air temp probe calibration Ag Recirculation humidity probe calibration Ah Outside humidity probe calibration Ah Defrost cond temp probe 1 calibration Ai Defrost cond temp probe 2 calibration Ai Air quality probe calibration CO2 Aj EVD Driver 1 probe offset Ak EVD Driver 2 probe offset Al Description of operation The probes are calibrated by setting an offset for each probe The parameter setting is summed to the value read by the corresponding probe 12 3 Test Inputs Outputs The test Inputs Outputs function is used to quickly check the analogue inputs and digital outputs Inputs used e All analogue inputs Devices used e All digital outputs Parameters used e Close open all the relay outputs An to Ar Description of operation To be able to test the digital outputs the unit must be off Screens An to Ar can be used to manually activate and deactivate the relay outputs CAREL code 030221501 Rel 2 5 of 17 11 08 53 13 Time bands This function is available only if the pCO board is
27. valve Not selected ALCO EX5 ALCO EX6 ALCO EX7 ALCO EX8 330 steps s SPORLAN 0 5 20tons SPORLAN 25 30tons SPORLAN 50 250tons CAREL E2V P CAREL E2V DANFOSS ETS 25 50 DANFOSS ETS 100 DANFOSS ETS 250 400 CUSTOM ALCO EX8 500 steps s tei cene E umero passi rs umber of seps DH II Passi minimi F4 R W Minimum steps customvave IT mum Passi massimi FA R W Minimum steps custom vave 0680 LI Passi chiusura F4 R W Closing steps custom valve 06080 LI Extra apertura Fs R W Extra opening customvave TN Extra chiusura Fs R W Extra dosing customvave TN Corrente fase F6 R W Phase current custom vae _ m Oto Passi Pos con rich pij gus pens T izione EEV F8 R W Steps in EEV standby 0 to number of steps EL oof mt Pe eege Pressure probe limits ressure probe limits E AA EH E EAS E i EAS Basso Sheat Low superheat alarm delay p LOP alarm delay MOP alarm delay Ritardo errore F Q1 to Q6 AUTOSETUP PARAMETERS ATTENZIONE Re ne Message for loading the AUTOSETUP default settings installare valori ci Circuit EEV ratio for opening on power up 0 to 100 compressor Not selected RECIPROCATING SCREW SCROLL FLOODED CABINET CABINET Controllo capacit Q2 R W Type of capacity control Not selected NONE or STEPS CONTINUOUS SLOW Basse Set ll EE e_N Rr 8 R W P High superheat alarm delay CONTINUOUS
28. 0221501 Rel 2 5 of 17 11 08 41 10 15 2 Recovery by enthalpy The heat recovery based on enthalpy can only be performed using the rotary heat recovery unit The following diagram indicates the ideal conditions for heat recovery 1 2 En kJ kg SETP SETP En kJ kg The conditions indicated in the following diagram show that heat recovery is possible the conditions mean that the return enthalpy is near the enthalpy set point In these conditions freecooling freeheating are also possible if enabled C4 If freecooling freeheating is enabled the heat recovery function is disabled 3 4 En kJ kg ENR ENE En kJ kg SETP SETP ENR SETP Enthalpy set point ENR Return enthalpy ENE Outside enthalpy Outside of the above mentioned conditions heat recovery is not possible 10 15 3 Dehumidification When dehumidification is required heat recovery is only possible in cooling mode 10 15 4 Control probe The heat recovery control probe may be e Return temperature e Outlet temperature e Return enthalpy e Outlet enthalpy If control is selected based on the outlet temperature or enthalpy the control functions are based directly on these measurements If control is selected based on the return temperature or enthalpy the control functions are based on the difference between the return and the outside conditions Temperature Cooling mode cooling Outside temperature return temperature control temp
29. 200 Superiore Soglia temp P9 High ambient temperature alarm threshold in HEATING mode E 99 9 to 99 9 26 0 coos This screen is displayed if heat pump control is enabled Low ambient temperature alarm threshold in HEATING mode C 99 9 to 99 9 EBRO PRES Ritardo allarme AN Pa High low ambient temperature alarm delay minutes 0 to 999 alta bassa temp interna 2 2 12 2 12 2 E O fd ss CAREL code 030221501 Rel 2 5 of 17 11 08 15 Abil flussostato Ru Pa Enable air flow control Lo ee Sana E RW Humidity set point upper limit l 99 9 to 99 9 80 0 Superiore This screen is displayed if humidity control is enabled DREES amp o 30 Humidity control differential in COOLING mode eS ee ES This screen is displayed if humidity control is enabled Inverno RTS Humidiy conto diferent in HEATING mode oomo o ona neutra RW Tc Deadzonehumidiycontol a Abilitazione R W Pd Enable operation of electric heater 1 Restatenza d This screen is displayed if at least one heater is enabled See A Enable operation of electric heater 2 Resistenze Heater offset with heating set point 9 to 99 9 a This screen is displayed if at least one heater is enabled Diff RW Pe Heater control differential with heating set point E 999t0999 20 Reg VON caldo Heating valve offset with heating set point 0 to
30. 7 11 08 10 of the pLAN address with the Up and Down 4 Selecting the language When the unit is switched on by default a screen is displayed for selecting the language This screen is displayed for 30 seconds after which the application automatically opens the main menu screen MO The language automatically loaded is English however this can be selected from the following options English and Italian To modify the language proceed as follows l press the Service button on the Built in terminal or on the external PGDO terminal press the Prg button and confirm the first item in the SERVICE menu by pressing the Enter button 2 from screen Ax each time ENTER is pressed changes the interface language Screen Pu features a parameter for enabling the select language screen when starting the unit In this way when the board is powered up the desired language can be selected and confirmed by pressing ENTER 5 Starting for the first time After having checked the connections between the various boards and terminals power up the pCO board boards On power up the software automatically installs the default values chosen by CAREL for the unit configuration parameters This section explains how to restore the default values and to return to the starting conditions When starting for the first time this operation is not required The following procedure is used to restore all the configuration parameters to the default values selecte
31. CAREL Standard Roof top 1 4 compressors Application program for pCO pCO pCO XS o es sel HIN s o TT Se Eu e e Il eem oam r Tannas field card AL D Giles i le ae lait 4 e ENS User manual Manual version 2 5 of 17 11 08 Program code FLSTDMRTOE LEGGI E CONSERVA QUESTE ISTRUZIONI READ AND SAVE THESE INSTRUCTIONS Technology amp Evolution CONTENTS 1 MENTO CUCU e BE 5 1 1 Main new features in version 2 0 sf 1 2 Main new features in version 2A 5 1 3 Main new features in version 2 2 5 1 4 Main new features Ii version ote 5 1 5 Malninew features n versioni ii ltda 5 1 6 Main new teatures in Versioni2 as 5 1 7 Introduction and functions performed by the program 6 1 8 Compatible hardware dede edet eb tipi dtd deb dado ble t a t 6 PEE COSCE ec 7 2 1 Rene Melen e 7 2 2 EISES H 2 3 Functions of the Butter eeh deet ee Ee 8 3 PLAN management between bo0ards eee 10 3 1 HOW TO ASSION the PLAN AA ts 10 4 Selecting the language aiii detected 11 5 Starting for the first time arenero 11 6 List of configurations EEN 11 6 1 Digital MUS a a AO oa 11 6 2 Analogue Inputs ea tn eimi GA RARA 12 6 3 Digital A 12 6 4 Pre US er EE 12 7 Listof parameters ssec ii 13 8 Screens 9
32. CTURER MENU Z1 O M2 O A2 o D Qo K2 O 9 P CONF gt O O M3 O A B K5 O S5 o P CI O M 4 K4 O S4 P4 Q O AS 15 Kn O S5 Q P5 G PSW A6 l6 K P6 4 A7 7 K7 P7 C5 A8 18 K8 P8 C6 A9 19 P9 C Aa O la Pa O C8 lb Pb 9 k Pc Ca ld Pd Cb le O Pe O Cc e if Pf Cd Ag O lg Pg Ce Ah Ih Ph o C A li Pi Cg A P o Ch Ak k Pk a Al Il H G Am O Im O Pm Ck An In Pn C Ao lo Po Cm Ap lp Pp PARAM gt GO O Aq iq Pq o Gl Ar Ir Pr G Q As Ps G3 Q At Pt G4 Q Au Pu G5 Av Q Pv G6 Aw O G7 G9 Ga O Gb Gc TIMES gt TO TI D o B T T5 T6 INITIAL gt vo VI CAREL code 030221501 Rel 2 5 of 17 11 08 25 EXV Manufacturer Autosetup Advanced MENU P Qi o 1 o Pp o Q o 2 o B o Q3 o 3 o M o Q o 4 o F5 o 05 o 5 F6 o Q6 o 6 o F7 o 7 o F8 o 8 o F9 o 9 o Fa Oo Fb o Fc 9 EVD400 electronic expansion valve The EVDriver module for the control of electronic expansion valves EEV in pLAN or tLAN networks allows superheat control on the suction side for more efficient and versatile operation of the refrigeration unit Efficient because the optimisation and stabili
33. EMPERATURE Temperature PRESSURE Presse Freecooling est RW C4 Enable freecooling in cooling Nn A DR ei ATE p N cid M dio CAREL code 030221501 Rel 2 5 of 17 11 08 R W 5 Set type of freecooling freeheating control Temperature Enthalpy This screen is displayed if freecooling freeheating is enabled R W 6 Set change in operating mode PANEL From terminal REMOTE From digital input AUTOMATIC From control probe Gestione umidita C6 Enable humidity control Y N Sonda temperatura C7 Set type of ambient temperature probe NTC PT1000 0 C8 Enable outside temperature probe Esterna Tipo i C8 Set type of outside temperature probe NTC PT1000 pu PT1000 NTC Pt100 PT1000 ER C9 Enable outlet temperature probe mandata Tipo R W Set type of outlet temperature probe el PT1000 SE PT1000 interna Tipo i Ca Set type of ambient humidity probe 0 1 V 10V 0 10 V 4 20mA 0 20mA 055 V Limiti sonda Set ambient humidity probe lower limit E 0 to 99 9 Ea Umidit interna Min Cb Set ambient humidity probe upper limit Lower ambient humidity limit to TN esterna Tipo Cc Set type of outside humidity probe 0 1 V 0 10 V 4 20mA 0 20MA 0 5 V Limiti sonda Set outside humidity probe lower limit 0 to 99 9 E Umidit esterna Min EM Cd Set outside humidity probe upper limit PEE outside humid limits to 100 0
34. IFFR NZR SETR REQ Rotor request SETR Temperature set point DIFFR Temperature differential NZR Dead zone DNZR Differential step for minimum speed Min Speed Minimum speed request REG TEMP Control probe CAREL code 030221501 Rel 2 5 of 17 11 08 Enthalpy control If the enthalpy conditions allow heat recovery the speed of the rotor follows the trend described in the following graphs 100 REG ENTH Kcal Kg ON REG ENTH Kcal Kg SETENTH REQ Rotor request SETENTH Enthalpy set point DIFFENTH Enthalpy differential NZENTH Enthalpy dead zone REG ENTH Control enthalpy 10 15 7 Management of cross flow heat recovery units Control is only based on the temperature not on the enthalpy The management of cross flow heat recovery units involves the control of the bypass damper On screen Cq the user can select the type of bypass damper control choosing between the following options e No damper controlled e Digital control Digital output 14 e Analogue control Analogue output 5 Screen Cq is also used to select the position of the bypass damper e Onthe recovery device the bypass damper is control as the rules described below The external air damper is managed always according the freecooling management By pass damper External ar Retumair damper Expulsion air Supply air Fresh air Modulating bypass damper If the conditions are right for heat recovery the bypass damper follows the tre
35. L34 Compressor 4 thermal overload anual 0 AL35 Compressor 3 maintenance anua No AL36 Compressor 4 maintenance anua No AL40 Driver 1 EEPROM error Circuit 1 off anua No ALA Driver 2 EEPROM error Circuit 2 off anua No AL42 Driver 1 EEV motor error Circuit 1 off anual 10s AL43 Driver 2 EEV motor error Circuit 2 off anual 10s AL44 Driver 1 MOP timeout Circuit 1 off anua No AL45 Driver 2 MOP timeout Circuit 2 off anua No AL46 Driver 1 LOP timeout Circuit 1 off anual 0 AL47 Driver 2 LOP timeout Circuit 2 off anual 0 AL48 Driver 1 low superheat Circuit 1 off anual 0 AL49 Driver 2 low superheat Circuit 2 off anual 0 AL50 Driver 1 valve not closed during power OFF Circuit 1 off anual 0 AL51 Driver 2 valve not dosed during power OFF Circuit 2 off anual 0 AL52 Driver 1 high superheat Circuit 1 off anual No AL53 Driver 2 high superheat Circuit 2 off anual No AL54 Driver 1 probe S1 error Circuit 1 off anual No AL55 Driver 2 probe S1 error Circuit 2 off anual No AL56 Driver 1 probe S2 error Circuit 1 off anual No AL57 Driver 2 probe S2 error Circuit 2 off anual No CAREL code 030221501 Rel 2 5 of 17 11 08 5 AL58 Driver 1 probe S3 error Circuit 1 off Manual No AL59 Driver 2 probe S3 error Circuit 2 off Manual No AL60 Driver 1 go ahead request Circuit 1 off Manual No AL61 Driver 2 go ahead request Circuit 2 off Manual No AL62 Driver 1 LAN disconnected Circuit 1 o
36. NE OOOO SOOO QO MAIN MENU for 6 button terminal MANUTENZIONE The UP amp DOWN buttons can be used to select the menu item the STORICO INGRESSI USCITE ENTER button enters the selected branch of screens OROLOGIO SET POINT UTENTE COSTRUTTORE Ee RA X I I T rm aaa ec R M Temperature of the environment being controlled ee SE Stato unita Unit operating status UNIT ON OFF FROM ALARM OFF FROM SUPERV OFF FROM TIME BANDS OFF FROM DIN OFF FROM alar ANUAL PROC pr A pa Indicates the operating mode of the unit HEATING COOLING Fasce orarie M2 The full symbol indicates active time bands the empty symbol indicates inactive time bands e Deumidifica Indicates the dehumidifier activation status eei RTF Indicates the activation status of the set point compensation function Sbrin r cal R M3 Indicates the defrost activation status during heat recovery EE Sbrinamento R M3 Indicates the defrost activation status Freecooling R M3 Indicates the freecooling activation status Freeheating R M3 Indicates the freeheating activation status Compressore 1 R M4 Indicates the activation status of compressor 1 Compressore 2 R M4 Indicates the activation status of compressor 2 RD ndiatestheadiionsusorcomprsors SASA TO R M4 Indicates the activation status of compressor 4 is y Prevent RING Indicates the activation status of th
37. Noys Ip Enable LOP protection for Driver 1 No Yes 1 WvYs of 17 11 08 14 IHE MN i z i i Status of the outside damper This is displayed both as a percentage and in graphic format on a E 20 segment bar m Ham EEEEEEEE Enable MOP protection for Driver 1 No Yes TN Yes EREA a A I E Alter cont E Fiaip ws p nbetoPptdonrbierzio TT ele EE CI in icin ie e A N E E Pie RD fiere ves e T_T Priver T ver RE fine T_T S0 S1 to 3 SET POINT loop SET button R W S2 Humidity set point COOLING mode Screen Pb This screen is displayed if humidity control is enabled RW Humidity set point HEATING mode Screen Pb 0 0 This screen is displayed if humidity control is enabled PO P1 to 9 a b to z USER loop PROG button Inserire password QW FO Screen to aces the user branch T_T Peer A EA Compressore 1 Enable operation of compressor 2 i Me able option of compres a Ne ES Enable operation of compressor 4 E s E Limite setpoint R W P3 Temperature set point upper limit 99 9 to 99 9 Temperatura Superiore Temperature set point lower limit C 990999 50 Temperature control differential in COOLING mode NES 0 to 15 0 Me Temperature control differential in HEATING mode oe 0 to 15 0 30 Temperature contral dead zane LX 39s A 71 Outside temperature set point for activating c
38. OI 2 pCO2 3 pCOC 4 pCOxs Mag 6 7 pCO3 CAREL CAREL S p A Via dell Industria 11 35020 Brugine Padova Italy Tel 39 049 9716611 Fax 39 049 9716600 http www carel com e mail carel carel com Agenzia Cod CAREL 020221501 Rel2 5 del 18 11 08
39. PM The set point and the differential also considering the dead zone 2 are the same as used in heating operation In FREECOOLING IN COOLING MODE and FREEHEATING IN HEATING MODE the outside damper normally closed starts mixing outside air with the ambient air thus trying to bring the temperature as close as possible to the set point switching off as many cooling or heating devices as possible The ideal condition would be for the desired temperature or enthalpy to be reached by only modulating the damper The minimum opening of the damper can set if the unit is on from screen PI If heating operation and with the damper at start up in heating PI parameter set to closed when starting or after a blackout the damper remains completely closed until the control temperature reaches the set point If this parameter is set to normal the above described function is not run In the outlet limit is active the modulation of the damper is disabled and it is forced closed 10 9 4 Forced freecooling ambient cleaning The freecooling damper cooling heating can be opened when the unit is started to ensure the complete renewal of the air in the environment The parameter on screen Pm is used to enable the function while screen Po sets the time the outside damper is forced open This procedure opens the damper 100 for the set time During this period the other devices such as compressors heaters heating valve etc can be enabled or disabled for
40. T TT orsetti mv A pia desd zone nao TTT ex supe dead zone automate oe CX Perai menani TTT TA Pea menman oe aspra nei TETTO ex rswpetetnegdimeinmm s TT LOP integral time in manual 0to 25 5 a a MOP integral time in manual 0 to 25 5 a ia MOP delay in automatic 0 to 50 0 Gia MOP delay in manual 0 to 50 0 Bild Select the type of proportional gain function Wl al s We aE E ES Warn valve lock in automatic Warn valve lock in manual 0 to 99 9 IO LEG EI X FE I t w ar ma wx Tempo integrale LOP Auto Tempo integrale LOP to Tempo integrale MOP Au Tempo integrale MOP Ritardo MOP Auto Ritardo MOP Guadag proporzionale o Attenz blocco valv dinamic Attenz blocco valv Prot Alta TCond Prot Alta TCond Tempo int alta Tempo int alta Tcond Auto CAREL code 030221501 Rel 2 5 of 17 11 08 24 8 Screens The application program user interface includes screens that are freely displayable while others for security reasons are password protected There are different levels of security between the screens e Screens that are not password protected these are located in all the branches except for MANUFACTURER and USER and show the values read by the probes the status of the alarms the operating hours of the devices the time and date they are also used to set the set point and t
41. ad zone kcal kg 0 to 99 9 na me CAREL code 030221501 Rel 2 5 of 17 11 08 16 Ed M Q o o Q E H y D e o Fh o H N D e E H w Pl Po n recupero calore Delta temp lt 212 2 lt 2 lt 2 lt lt 2 lt 2 2 2 Ae tLe Ree ae DECIR Sbrin recupero R W Pz Defrost set point in heat recovery If the outside temperature is less C 99 9 to 99 9 2 0 Seet Defrost control diferential in heatrecovey oss 39 __ PZ Defostacivaion delay inheatrecovey mins 009 5 eloc RW Rotor speed during defrost when rotary heat recovery is 0 to 100 50 configured Abilitazione Pp JE I igi Enable unit On Off rom the supervisor T_T Enable automatic restart Unit On after a blackout ws Board identification number for supervisory network NES 1 to 200 Bess per rete BMS Baud rate R W Board communication speed for supervisory network bps 0 1 2 3 4 4 1200 RS485 RS422 2400 RS485 RS422 4800 RS485 RS422 9600 RS485 only 19200 RS485 only Par Pipe of poor wed CRE MODBUS LON SZ GNO Y ooo o Fon aqui Er Number of modem rings analogue modem pip e EH elephone numbers entered in phone book elephone number for sending SMS messages GSM modem Max num rubric Numero cellulare 2 2 EIE Ed Ed Ed Rd Bd Fd E ER LEE isual numero isplay number analogue modem I bn assword for sending SMS messages Num squilli umber of rings ex
42. an the end defrost set point G3 e after a maximum time if the defrost temperature probe does not reach the end defrost set point within the maximum defrost time Pn 10 5 2 Simultaneous defrost This can be divided into e simultaneous defrost with simultaneous end e simultaneous defrost with non simultaneous end In both cases the activation of the defrost on the 2 circuits depends on the probe with the lower temperature reading The end of the defrost on the other hand is differentiated If the defrost is configured with simultaneous end the defrost will terminate on both circuits when the first of the two probes measures a value higher than the end defrost set point If the defrost is configured with non simultaneous end on the other hand the defrost will terminate separately on each circuit when the corresponding probe measures a value higher than the end defrost set point EN DD Circuit 2 A pp DFRP1 Defrost probe circuit 1 C DFRP2 Defrost probe circuit 2 C SESBR End defrost threshold C SSSBR Start defrost threshold C DD Defrost delay s The simultaneous defrost can also end after a maximum time if the defrost temperature probe does not reach the end defrost set point within the maximum defrost time Pn In both modes the compressor off time at start and end defrost can be set This time allows the cycle to be reversed with the compressors off As soon as the defro
43. at start up This function is only available in winter and it is used for to have the room temperature on the setpoint quickly at the unit start up Inputs used e Ambient air temperature probe Devices used e Outside air damper Parameters used Temperature control set point 1 Enable force freecooling when starting the unit PI In winter at the start up of the unit if this function is enabled freecooling outside air damper will be forced off It is closed totally not works on the minimum opening value The damper can start regulating after that the ambient temperature is greater than the setpoint for at list one time 10 10 Heating valve control Control of a 0 10V modulating valve Inputs used Ambient temperature probe Outlet temperature probe Outputs used Digital output NO17 pCO3 Large board only Devices used Heating valve Parameters used Enable heating valve C2 Set type of heating C2 Enable heating in summer Cr Valve open temperature offset Pf Valve closed temperature differential Pf Outlet temperature set point for antifreeze function PB Supply temperature differential for antifreeze function PB Maximum opening of the valve during antifreeze PC Description of operation The heating valve is controlled based on the ambient temperature as shown in the figure below if the following conditions are always true The unit is in heating operation or in summer if the heating in summer
44. aved in the log pressing the PRINTER button displays the last event and then the UP DOWN buttons can be used to scroll the various alarms saved the number of events shown at the top left increases with each new alarm a maximum of 150 events can be saved Once having reached the maximum number of events the new events overwrite the oldest ones The alarm log can be reset on screen Am in the password protected section of the service branch The alarm log can be deletes as follows e installing the default values e by parameter on the delete log screen Am 11 4 SMS on alarm If a GSM modem is connected to the board the unit can send SMS messages when an alarm is activated The SMS is sent at the moment the alarm is activated CAREL code 050221501 Rel 2 5 of 17 11 08 52 12 Service 12 1 Compressor and unit hour counter settings These settings manage the compressor and unit maintenance alarms Parameters used Unit maintenance alarm operating hour threshold A7 Reset unit hour counter Ac Compressor maintenance alarm operating hour threshold A8 to Ab Reset compressor hour counter Ad Ae Description of operation The controller counts the operating hours of the devices compressors and unit When the hour counter for the individual device reaches the alarm threshold the maintenance alarm for the corresponding device is activated The maintenance alarm is signal only 12 2 Probe calibration These
45. board Inputs used e Outside air temperature Discharge air temperature e Ambient air temperature e Ambient air relative humidity e Outside air relative humidity Parameters used e Enable heat recovery function Ck Select the type of heat recovery unit Ck Select the type of bypass damper Cq Position of the bypass damper Cq Select the type of rotor Cn Select the logic of the heat recovery unit digital output Cn Select minimum rotor speed Co Select minimum bypass damper opening Co Select control probe minimum Cp Recovery activation temperature delta Pw Recovery activation temperature differential Pw e Recovery control temperature differential Px e Recovery control temperature dead zone Px Three types of heat recovery unit can be managed e Double coil heat recovery unit e Rotary heat recovery unit e Cross flow heat recovery unit All the types of heat recovery unit must respect the following conditions 10 15 1 Recovery by temperature Cooling mode Recovery On gt Outside temperature return temperature gt Recovery activation delta Recovery Off gt Outside temperature return temperature lt Recovery activation delta Recovery activation differential Heating mode Recovery On gt Return temperature outside temperature gt Recovery activation delta Recovery Off gt Return temperature outside temperature lt Recovery activation delta Recovery activation differential CAREL code 03
46. d access to the parameters is confirmed by pressing the Enter button PRG ENTER temporary display of the board pLAN serial address CAREL code 030221501 Rel 2 5 of 17 11 08 9 3 pLAN management between boards The pLAN network identifies a physical connection between the boards pCO1 pCO2 pCO3 and the external terminals pLAN p CO Local Area N etwork The purpose of the pLAN network connection between the boards is to exchange variables according to the logic decided by the program so as the units can operate together The variables exchanged between the boards are established by the program as is the direction of exchange and therefore there are no user settings the only operation required by the user involves the electrical connections Below is a diagram with all the components connected in the pLAN Below is a diagram with the EVD400 driver in a tLAN connection whi 3 1 Erosod bung Es Pound oso SR fvosod bat rn 2 ka 1 2 ISS tLAN pco ec peo pco 1 H pLAN 2 4 6 k pco pco poo pco tLAN I e the others components are connected in the pLAN 1 2 1 2 1 2 1 2 Papa papa Fowl Ged How to assign the pLAN addresses The pLAN addresses must be unique and follow the layout shown above There are various different ways to assign the pLAN address 3 1 1 PGDO terminal To set the address of a PGD terminal
47. d by CAREL CAUTION this procedure irreversibly deletes any programming performed by the user As resetting the default values is an operation that involves each pCO board when more than one board is present the procedure must be repeated for the all the boards The procedure is identical for all the boards Proceed as follows e press the menu and prog buttons on the LCD terminal at the same time go to the manufacturer branch on the PGDO terminal When pressed the LEDs corresponding to the menu and prog buttons will come on e enter the password using the arrow buttons and press Enter this enters the manufacturer configuration branch Password vo 1 costruttore i I 1 I 1 Premere ENTER V1 Iper installare I li valori di default I 1 e press Enter to install the default values The operation is completed when the message Please wait is no longer displayed 6 List of configurations On power up the program recognises the type of board and the size arranging the inputs and outputs as a consequence The following diagrams indicate the configuration of the inputs and outputs in the possible combinations 6 1 Digital inputs No pCO LARGE pCO MEDIUM pco gt D2 Dirty filter alarm Dirty filter alarm Dirty filter alarm D3 Cooling heating selection Cooling heating selection Main fan thermal
48. e between two starts of the same device This parameter is used to limit the number of starts per hour If for example the maximum number of starts hour allowed by the manufacturer is 10 simply set a time of 560 seconds to ensure this limit is observed 10 5 Defrost Inputs used Defrost probe 1 Defrost probe 2 Devices used Reversing solenoid valve 1 Reversing solenoid valve 2 Compressor no 1 Compressor no 2 Parameters used Type of defrost probe C3 Start defrost set point G3 End defrost set point G3 Defrost start delay Pn Maximum defrost time Pn Compressor off time at start and end defrost T5 Enable main fan shutdown G4 Enable simultaneous defrosting the circuits G4 Select simultaneous defrost mode G5 There are two defrost modes CAREL code 030221501 Rel 2 5 of 17 11 08 30 10 5 1 Non simultaneous defrost The 2 circuits are never defrosted at the same time If the defrost call is active on both circuits one of the two circuits starts the defrost procedure while the other remains in standby The defrost procedure is activated if the following conditions are true e the unit is in heating operation e the defrost temperature probe reads a value less than the start defrost set point G3 for a total time equal to the defrost delay time Pn e the compressors are on The defrost can end in two ways e by temperature if the defrost temperature probe reads a value higher th
49. e high pressure prevent function lk II Limite mandata R M5 indicates the activation status of the outlet limit function ale Antigelo R MS Indicates the activation status of the antifreeze function 10 1 to 9 a s INPUTS OUTPUTS loop I O button Sonda temperatura Ambient temperature probe Interna Esterna 7777 R 70 Outside temperature probe Sonda temperatura Il pcd du probe Mandata Ere E aside humidi probe pee 1 Sbrinam 1 Bbrinam 2 R Derostprobe emo end Condens 1 Condens 2 LEI Condenser probe ECTS O Sonda Qualit aria Co air quality probe Screen Cf E MEN mom Internal enthalpy value kcal kg This screen is displayed only if the freecooling and freeheating in heating mode are controlled by enthalpy patera RL FE eternal enthalpy vate i A Value of the enthalpy set point This screen is displayed only if the kcal kg freecooling and freeheating in heating mode are controlled by enthalpy Status of digital inputs 1 2 5 7 8 9 C Closed A Open Status of digital inputs 4 5 6 10 11 12 C Closed A Open Status of digital inputs 15 14 15 16 17 18 C dosed A Open CAREL code 050221501 Rel 2 5 of 17 11 08 13 Compressore 1 Compressore 2 Compressore 3 Compressore 4 Compressore 1 Parz 1 comp 1 Compressore 2 Parz 1 comp 2 ent cond 1 ent cond 2 alv inv 1 alv inv 2 ent princ al sr a E 0 o o 8 K nj u F K H H
50. e input 3 ogue input 4 ogue input 5 ogue input 6 ogue input 7 ogue input 8 perature set point in cooling perature set point in heating nidity set point in cooling nidity set point in heating emperature set point upper limit Temperature set point lower limit Temperature control band in cooling Temperature control band in heating Humidity set point upper limit Humidity set point lower limit Humidity control band in cooling Humidity control band in heating Condenser fan set point ndenser fan differential Freecooling freeheating activation differential mI 5 a gt gt gt 5 5 5 5 ajajaja 4 e o 3 CAREL code 030221501 Rel 2 5 of 17 11 2008 Temperature set point lower limit Maximumfanspeed Temperature control band in cooling Minimum fan speed Temperature control band in heating Preventsetpoint i Humidity set point upperlimit_ Prevent differential Humidity set point lower limit Heat recovery activation temperature delta Humidity control band in cooling Heat recovery activation differential Humidity control band inheating Heat recovery control by temperature differential Heat recovery control by temperature dead zone Temperature controldeadzone Humidity control dead zone O o Freecooling offset cooling set point Freecooling differential Freeheating offset heating set point Freeheating diff
51. e must have exceeded the control set point 15 of the band The dehumidification function will continue until the temperature is lower than 85 of the band as shown in the figure below 25 15 Tasse C A BNDS STPS Cooling set point C BNDS Control band humidity cooling C T Ambient temperature C AMB CAREL code 030221501 Rel 2 5 of 17 11 08 47 10 17 Post heating during dehumidification This function is not available on the pCO humidity probe does not manage The post heating action is performed by operating the heaters or heating valve The activation request for the heaters or heating valve depends on the dehumidification and ambient temperature requirement Post heating is used only with dehumidification and only in summer Inputs used Ambient humidity Ambient temperature Devices used Heater no 1 Heater no 2 Heating valve Parameters used Enable post heating in dehumidification Cr Enable humidity control function C6 Humidity set point in cooling S2 Humidity control band in cooling Pc Humidity dead zone Pc Number of compressors in dehumidification G6 Number of heaters set C2 Heater control offset Pf Heater control differential Pf Enable heating valve or heater number C2 Enable heater 1 Pd Enable heater 2 Pd Temperature control set point S0 S1 Description of operation Post heating is performed if the following co
52. e pressure circuit 2 Outside air temperature B7 B8 Outlet temperature Cond temperature pressure circuit 2 pCO3 Outside air temperature CO2 probe 6 3 Digital outputs No pCO LARGE pCO MEDIUM pco DO 2 Cond fan circuit 1 Cond fan circuit 1 Compressor contactor DO 3 Cap cont comp 1 or comp 2 circuit 1 Cap cont comp 1 or comp 2 circuit 1 Heater DO 4 Compressor 2 circuit 2 comp 3 Compressor 2 circuit 2 comp 3 General alarm DO 5 Cond fan circuit 2 Cond fan circuit 2 Reversing valve DO 6 Cap cont comp 2 circuit 2 comp 4 Cap cont comp 2 circuit 2 comp 4 DO 8 General alarm General alarm DO 10 Heater 2 Heater 2 DO 11 Humidifier control Humidifier control DO 12 Reversing valve circ 1 Reversing valve circ 1 DO 13 Reversing valve circ 2 Reversing valve circ 2 DO 14 Heat recovery digital output DO 15 Freecooling freeheating active DO 16 Unit in heat pump operation DO 17 Heating valve status 6 4 Analogue outputs No pCO LARGE pCO MEDIUM pco AO 1 Outside air damper Outside air damper Outside air damper AO 2 Heating valve Heating valve Heating valve AO3 Cond fan 1 controller Cond fan 1 controller Cond fan controller AO 4 Cond fan 2 controller Cond fan 2 controller AO 5 Heat recovery analogue output AO 6 Modulating humidifier CAREL code 030221501 Rel 2 5 of 17 11 08 12 7 List of parameters S
53. ed cooling set point SO heating set point 51 cooling control band P4 heating control band P4 cooling control dead zone P4 number of compressors selected CO enable heat pump C1 select proportional proportional integral control GO integral time GO enable compressor 1 2 P1 enable compressor 3 4 P2 Description of operation The compressors are activated according to the ambient air temperature The compressors must be enabled on screens P1 P2 in the user branch CAREL code 030221501 Rel 2 5 of 17 11 08 28 10 4 1 Operation with 1 compressor STPW STPS 10 4 2 Operation with 1 compressor 1 load step STPW STPS 50 0 BND gt one Tame C Pd Tame C 10 4 3 Operation with 2 compressors STPW STPS 10 4 4 Operation 2 compressors 2 load steps STPW STPS 100 75 50 25 0 Ce AD 25 50 75 100 Tame C nel 10 4 5 Operation with 4 compressors STPW STPS 100 7596 50 25 10 0 1 25 50 gip Sq Tame C ZNH BND STPW Heating set point C STPS Cooling set point C ZNH Dead zone 2 C BND Control band C TAMB Ambient temperature C CI Compressor 1 Q Compressor 2 PI Compressor 1 capacity control P2 Compressor 2 capacity control 10 4 6 Proportional or Proportional Integral operation The type of control is se
54. ed on off from the supervisor see the supervisor table if the following conditions are true he unit is switched on from the panel he unit is activated by digital input if enabled he time band is active if enabled he logical status of the supervisor digital variable is 1 The unit switches off if one of the following conditions is true he unit is switched off from the panel he unit is deactivated by digital input if enabled he time band is inactive if enabled he logical status of the supervisor digital variable is 0 10 3 Compressor control The compressors are managed as ON OFF loads hermetic and semi hermetic compressors Up to 4 loads can be controlled heating or cooling steps in the combinations listed below Setting No circuits No comps C1 No steps C1 No comps C2 No steps C2 1 COMP 1 1 0 0 0 1 COMP 1 STEP 1 1 0 0 2 COMPS 1 2 0 0 0 2 COMPS 2 1 0 1 0 2 COMPS 2 STEPS 1 2 2 0 0 2 COMPS 2 STEPS 2 1 1 1 1 4 COMPS 2 2 0 2 0 10 4 Load steps These can have N O normally open relay or N C normally closed relay logic They are activated with a settable delay from when the compressors are started T6 If dehumidification is required the maximum number of compressors to be activated can be set 1 4 The activation of the compressors and any load steps will be based on the dehumidification requirement Inputs used ambient temperature probe Parameters us
55. eed of rotary heat recovery unit Min vel rotore re Minimum bypass damper opening Recupero calore R W CP Set type of heat recovery control Sonda di Ambient temperature 0 to 100 0 to 100 AMBIENT TEMPERATURE OUTLET TEMPER AMBIENT ENTHALPY regolazione Outlet temperature Ambient enthalpy Abilitazione C1 Enable EVD400 driver Drivers EVD400 Scheda orologio Enable clock board R W Cm Reference frequency 50 Hz 60 Hz G0 G1 to 9 a b MANUFACTURER loop PARAMETERS submenu Regolazione R W SO Type of temperature control E P Proportional Pl Proportional integral Tempo integrazione BIN GO Integral time for D control 0 to 999 reg P I Compensazione W G1 Enable temperature set point compensation setpoint Pressione atm R W 62 Set the atmospheric pressure for the calculation of the enthalpy mbar 600 to 1100 per calcolo entalpia Setpoint R W 83 Set the start defrost set point Screen C5 99 9 to 99 9 sbrinamento Inizio Fine Wu G3 Set the end defrost set point 99 9 to 99 9 14 0 CRE fear durante sbrinam E Lg e qm sbrinam contemp Sbrinam contemp BI G5 Enable end simultaneous defrost when reaching the minimum Screen C3 Y N Fine sbrinam con value of sonda alla minima Temperature E Pressure Set screen C3 Num compressori R W G6 Setthe number of compressors enabled for operation during the 0 1 2 1 entilatore di R W 67 Set the control set point f
56. emperature The operation of the unit in FREECOOLING or FREEHEATING mode is used to exploit the outside air when the temperature conditions are favourable with reference to the ambient air The operation of the unit in freecooling mode in heating cooling operation or in freeheating mode in heating operation can be selected by password protected parameter in the manufacturer branch C1 Inputs used Outside air temperature probe Ambient air temperature probe Devices used 0 to 10 V outside damper Parameters used Freecooling heating differential by temperature C5 Freecooling heating differential by enthalpy C5 Freecooling offset in cooling Pj Modulating freecooling differential in cooling Pi Freeheating offset in heating Pk Modulating freeheating differential in heating Pk Temperature control set point S0 1 Temperature control band P4 Minimum damper opening PI Enable force freecooling when starting the unit PI Freecooling forcing time Po Enable control temperature temperature humidity during the forced operation Po 10 9 1 Freecooling in cooling mode The opening of the outside damper is controlled based on the ambient air temperature as shown in the following figure if the following conditions are always true the unit is in cooling operation the outside temperature probe is enabled on screen C8 manufacturer branch password protected the freecooling function in cooling is enabled on screen C4
57. emperature P5 Maximum compensation in cooling P5 Description of operation The set point compensation differs from heating operation to cooling operation in terms of the type of action and the parameters used Compensation in cooling Set point compensation in cooling mode is active when the following conditions are true the unit is in cooling operation compensation is enabled on screen G1 manufacturer branch password protected Compensation in cooling mode sums a delta to the set point that depends on the outside temperature as the outside temperature increases the value of the delta increases Text C STPC Compensation set point C CMPM Maximum compensation C DIFFC Compensation differential C To Outside temperature C CAREL code 030221501 Rel 2 5 of 17 11 08 40 Compensation in heating Set point compensation in heating mode is active when the following conditions are true the unit is in heating operation compensation is enabled on screen G1 manufacturer branch password protected Compensation in cooling mode subtracts a delta from the set point that depends on the outside temperature as the outside temperature decreases the value of the delta increases Text C STPC Compensation set point C CMPM Maximum compensation C DIFFC Compensation differential C Outside temperature C 10 15 Heat recovery This function is only supported on the pCO3 Large
58. erature Heating mode heating Return temperature outside temperature control temperature Enthalpy Outside enthalpy return enthalpy control enthalpy CAREL code 030221501 Rel 2 5 of 17 11 08 42 10 15 5 Management of double coil heat recovery units This type of heat recovery unit is used in separate flow systems without mixing the return air and the outside air The device controlled is the water circulating pump for the two coils The pump is controlled via digital output 14 Control can only be performed based on the temperature not on the enthalpy If the heat recovery conditions are available the circulating pump is activated as shown in the following graphs depending on the operating mode cooling heating Cooling Mode REQ 100 0 REG TEMP C DIFFR Heating Mode REQ 100 A M REG TEMP C DIFFR D NZR REQ Pump request SETPR Recovery control set point DIFFR Temperature differential NZR Dead zone REG ENTH Control probe Defrost n the event of defrosts the pump is forced on DO14 d Ext Temp C DIFFD SETD REQD Defrost request SETD Defrost set point DIFFD Defrost differential Ext Temp Outside temperature The defrost is activated after the delay time set on screen Pn 10 15 6 Management of rotary heat recovery units The management of rotary heat recovery units involves the control of the following devices e Bypass damper e Roto
59. erential inimum outlet temperature limit set point inimum outlet temperature limit differential ompensation set point in cooling ompensation differential in cooling aximum compensation in cooling Compensation set point heating Compensation differential heating aximum compensation heating art defrost set po nd defrost set point aximum fan speed inimum fan speed Prevent set point Prevent differential Heat recovery activation temperature delta Heat recovery activation differential Heat recovery control by temperature differential Heat recovery control by temperature dead zone Temperature control dead zone Humidity control dead zone 3 8W W R R Maximum temperature limit in cooling Minimum temperature limit in cooling Maximum temperature limit in heating Inside temperature probe calibration 52 RW Heater differential Inside humidity probe calibration Outside humidity probe calibration 60 RW Temperature set point outside the time bands in R W heating Temperature set point outside the time bands in cooling 62 R W Heating valve derei 55 RW Outside enthalpy 9 RA side enhy HT ORY mhpystpom STE 14 3 Integer variables LOP threshold Driver 1 LOP threshold Driver 2 MOP threshold Driver 1 MOP threshold Driver 2 Maximum superheat Driver 1 Current superheat Driver 1 Current superheat Dr
60. ff Manual 30s AL63 Driver 2 LAN disconnected Circuit 2 off Manual 305 AL64 Driver 1 autosetup not complete Circuit 1 off Manual 0 AL65 Driver 2 autosetup not complete Circuit 2 off Manual 0 AL66 Circuit 1 in Prevent mode Compressors off in circuit 1 Automatic 10s AL67 Circuit 2 in Prevent mode Compressors off in circuit 2 Automatic 10s with delay from activation of the compressor if the probe is the ambient temperature probe the unit is stopped 11 1 Low pressure alarm circuit 1 2 in cooling heating The low pressure alarm is managed separately in each circuit and operating mode cooling or heating In cooling mode the alarm is ignored for a set time T2 from when the compressor starts while in heating mode operation is similar to cooling except for defrost phase during which the alarm is disabled 11 2 Cooling set point less than heating set point alarm This alarm is active only when the automatic cooling heating changeover function is enabled C6 The software checks that the cooling set point is always higher than the heating set point and where necessary generates a display only alarm 11 3 Alarmlog The log is only available if the board is fitted with the clock Date and time event recorded A All Biet deseription ermico ventilatore of the alarm e compressore 1 Ambient temperature and humidity probe readings when event was recorded All alarms are s
61. g device times signals e complete management of the device times e connection with local supervision networks and BMS LonWorks BACnet Modbus e management of CO probe for air quality control e management of heat recovery units cross flow rotary double coil e management of the antifreeze function with the unit off The user terminal is used to display and modify the following data at any time e readings of the probes connected and calibration e uniton and off e alarm detection e programming of the configuration parameters and the operating parameters with password protected access e e operating hours of the controlled devices and time bands with password protected access setting of the clock and the time bands with password protected access e selection between the different languages available English Italian and Spanish The pLAN network connection of the pCO boardsallows the following functions to be performed e control of up to 8 air conditioners with just one external terminal WARNING to avoid tampering during the operation only qualified personnel must know the password 1 8 Compatible hardware The program is compatible with the following devices e pCO e pCO Medium and Large e pCO medium e semi graphic display PGDO e built in display on pCO board CAREL code 030221501 Rel 2 5 of 17 11 08 6 2 The user terminal 2 1 Type and operation Two types of terminal are envisaged 1
62. guration the heat recovery digital output it is used to manage only the status open or close of the external air damper CAREL code 030221501 Rel 2 5 of 17 11 08 46 10 16 Dehumidification This function is not available on the pCO humidity probe does not manage The dehumidification action is performed by operating the compressors The maximum number of compressor activated 1 4 in dehumidification mode can be set The activation request for the compressors and any load steps depends on the dehumidification requirement Inputs used Ambient humidity Ambient temperature Devices used Compressor no 1 4 plus any load steps Parameters used Enable humidity control function Ca Humidity set point in cooling 52 Humidity control band in cooling Pc Humidity dead zone Pc Number of compressors in dehumidification G6 Description of operation Dehumidification is performed if the following conditions are true e the unitis in cooling operation e humidity control is enabled on screen Ca manufacturer branch password protected e the number of compressors related to the dehumidification request is greater than or equal to 1 screen G6 manufacturer branch password protected STPS Humidity set point in cooling RH ZN Dead zone RH BNDS Humidity control band in cooling RH Hus Ambient humidity RH For the compressors to be activated in response to a dehumidification request the ambient temperatur
63. he clock These screens are indicated by the symbol in the following table e Password protected sub screens represented in the table by the symbol in the SERVICE and CLOCK branches there are free screens not password protected followed by a password screen to access further sub screens These are used to control the devices calibrate the probes modify the operating hours manually manage the devices and set the time bands e Password protected screens represented in the table by the symbol these are in the MANUFACTURER and USER branches and are used to configure the unit enable the main functions and select the devices connected The columns in the table represent the groups of screens with the first screen A0 SO etc being the one that is displayed when pressing the corresponding button or for the display wit h 6 buttons accessible from the main menu after which the arrow buttons can be used to scroll the other screens The codes Ax Bx Cx etc are displayed in the top right corner of the screens making them easy to identify The annotation PSW indicates screens that are protected by password e O MO O AO 10 O Ko O SO PSW PO PSW 70 O MI O Al il PSW Ki O SI PI MANUFA
64. isplayed both as a percentage and in graphic format on a 20 segment bar Status of the humidifier This is displayed both as a percentage and in graphic format on a 20 segment bar Ih Status of the modem Modem in standby Initialisation Searching GSM network Modem in standby Modem alarm Initialising error PIN error GSM network not found SMS saturation Send SMS Modem connected Call modem Rotary heat recovery unit speed Double coil recovery unit condition NOT OK OK Status of the digital control of the rotor on the rotary heat recovery AA unit Status of the circulating pump on the double coil recovery unit LL O G iii TTT Fi pendii TETTO a EE ST EES Re of gas in circuit 1 R22 R134a R404a R407c R410a poop ESSE R507c R290 R600 R600a R717 R744 R728 R1270 Par Bipetestvaueincrakt 0 IT urine SETT eeen FTT m of gas in circuit 2 R22 R134a R404a R407c R410a ES R507c R290 R600 R600a R717 R744 R728 R1270 Hm Reeheteuendeii Ie ia tration temperature in rai aj Suction temperature in circuit 2 In Evaporation temperature in circuit 1 Dos de e xb sj Condensing temperature in crit cele a Evaporation pressure in circuit 2 barg Eee gi Evaporation temperature in circuit 2 NEC 7 B A Condensing temperature in circuit 2 x pose spl nic Hi Enable low superheat protection for Driver 1 No Yes ws Enable high condensing temperature protection for Driver 1 No Yes __
65. lected on screen GO Proportional An ideal ambient air temperature set point is defined and the controller will operate so as to bring the system as near as possible to the set point proportionally to the deviation of the system from such set point A proportional band is defined around to the set point P4 in which the controller applies the minimum action in relation to the set point 50 51 then as the controlled value moves away from this band the action of the controller will increase until reaching saturation that is the extreme limits of control and consequently maximum capacity Proportional Integral In addition to the proportional control action described above proportional integral control introduces the concept of time The defining parameter is the time constant expressed in seconds which represents the P response speed low times high speed This useful to avoid situations of stalemate the set point cannot be reached that is typical of proportional only control CAREL code 030221501 Rel 2 5 of 17 11 08 29 10 4 7 Compressor rotation The rotation of the compressors can be enabled on screen C1 Compressor rotation follows E LEO logic first in first out The objective is to try to balance the operating hours of the compressors so that they all have approximately the same age 10 4 8 Balancing capacity The balancing of capacity can be enabled on screen C1 If the capacity balancing feature is enab
66. led the controller activates equal steps in both circuits if configured This means that when compressor 1 is started in circuit 1 this will be followed by compressor 1 in circuit 2 Below is compressor activation sequence excluded if rotation is enabled Capacity balancing enabled 1 Compressor 1 circul 2 Compressor 1 circuit 2 3 Compressor 2 circul 4 Compressor 2 circuit 2 Capacity balancing disabled 1 Compressor 1 circui 2 Compressor 2 circul 3 Compressor 1 circuit 2 4 Compressor 2 circuit 2 10 4 9 Compressor times Time between the activation of the main fan and the first compressor This represents the minimum time that must elapse between the start of the main fan and the first compressor Minimum on time Sets the minimum operating time in seconds of the compressors when they have been activated Even if called to stop they can only deactivated after this time has elapsed Minimum off time Sets the minimum off time in seconds of the compressors when they have been stopped Even if called to start they can only activated after this time has elapsed Minimum time between starts of different compressors This represents the minimum time in seconds that must elapse between one device activation and the next This time is used to avoid simultaneous starts that would cause high power consumption Minimum time between starts of the same compressor This establishes the minimum time in seconds that must elaps
67. nd Type of control parameters C3 The following possibilities are available Control Compressor By pressure By temperature By pressure By temperature Type of control On Off On Off Modulating Modulating Operation a b c a Control based on compressor similar to operation with the probes disabled b On Off control by pressure temperature if at least 1 of the compressors in the circuit is ON the fan digital output closes at the set diff in cooling and set diff in heating HEATING COOLING STP Cond temp set point C DIF Cond temp differential C TCNDI Condensing temperature 1 C TCND2 Condensing temperature 2 C c Modulating control by pressure temperature when the condensing pressure temperature is higher lower than the set point the digital output is activated and the condenser control analogue output starts modulating COOLING HEATING STP Cond temp set point C DIF Cond temp differential C TCNDI Condensing temperature 1 C TCND2 Condensing temperature 2 C Two further options are also featured Separate operation each of the two fans is controlled according to its own condensing temperature coupled operation both fans are controlled based on the higher of the condensing temperatures in cooling and the lower of the two in heating CAREL code 030221501 Rel 2 5 of 17 11 08 33 10 9 Freecooling control and freeheating by t
68. nd indicated in the following graphs Heating Mode REQBD Cooling Mode 100 Min Open REG TEMP C BS ER H REG TEMP C NZR DIFFR DNZR tow DIFFR SETR SETR REQBD Bypass damper request SETR Recovery temperature set point DIFFR Temperature differential NZR Dead zone DNZR Differential step for minimum opening Min Open Minimum damper opening REG TEMP Control probe Digital bypass damper If the conditions are right for heat recovery the bypass damper must be closed the air flows through the heat recovery device If the conditions are not right for heat recovery the bypass damper must be open the air is not deviated through the heat recovery device CAREL code 030221501 Rel 2 5 of 17 11 08 45 e Additional damper Exfemal air O Return air damper O Expulsion air Supply air O Fresh air oi o By pass damper In this case there is no a real heat recovery modulation in fact when the condition for heat recovery are right then the recovery will be always 100 So the dampers work as follows If the conditions are right for heat recovery the bypass damper must be closed The external air damper will be open 100 by heat recovery digital output If the conditions are not right for heat recovery the bypass damper must be open by modulation from minimum to 100 according to the freecooling management The external air damper will be closed by heat recovery digital output So in this confi
69. nditions are true e the unit is in cooling operation dehumidification is running o e more than 1 heaters are set or heating valve is enabled on screen C2 manufacturer branch password protected e heater 1 and 2 are enabled on screen Pd user branch password protected HEATER CAREL code 030221501 Rel 2 5 of 17 11 08 HEAT VALVE 48 ACTIVE SETPOINT AMBIENTE TEMP 10 18 Humidification This function is not available on the pCO An external humidifier is controlled based on an on off or modulating 0 10V signal the latter on the pCO3 large only Two different humidity set points can be set one for cooling operation and one for heating operation S2 53 Inputs used Ambient humidity Devices used Enable humidifier digital output Modulating humidifier analogue output pCO3 large Parameters used Enable humidity management C6 Humidity set point in cooling S2 Humidity set point in heating S3 Humidity control band in cooling Pc Humidity control band in heating Pc Humidity dead zone Pc Graph of the enable humidifier digital output HSTPS Set point umidit RH BNDS Banda di regolazione umidit RH ZN Zona neutra umidit RH H Umidit ambiente RH AMB Graph of the modulating humidifier analogue output HSTPS Set point umidit cooling RH BNDS Banda di regolazione umidit cooling RH ZN Zona neutra umidit RH 100 Umidit ambiente RH 0
70. nimum outlet temperature limit differential C To Outlet temperature C Maximum limit in heating operation When the outlet temperature rises above the maximum set point limit minus the differential PA the maximum outlet temperature limit function is activated which involves the following actions Close the outside damper Shutdown the compressors Close the heating valve Shutdown the electric heaters The compressors are shutdown proportionally to the value of the outlet temperature compared to the maximum limit differential set As the outlet temperature increases all the compressors configured and operating will be shut down within the maximum limit differential interval Consequently when the outlet temperature rises above the maximum limit set point all the compressors will be off e DIFFW 3 STPWU Maximum outlet temperature limit set point C DIFFW Maximum outlet temperature limit differential C T Outlet temperature C SUP CAREL code 030221501 Rel 2 5 of 17 11 08 37 10 12 Heaters control On one hand heaters can be activated for heating directly if the heating valve is not enabled On the other hand it can be activated when the heat pump or the heating valve are not sufficient to heat the ambient air as required Inputs used Ambient air temperature Devices used Heater no 1 Heater no 2 Parameters used Number of heaters set C2 Set type of heating C2 Enable heating in
71. nthalpy as shown in the figure below DIFFEN gt STPEN Enthalpy set point KJ DIFFEN Enthalpy differential KJ EN Ambient enthalpy KJ CAREL code 030221501 Rel 2 5 of 17 11 08 50 11 Alarm management When an alarm is activated actions are performed on the devices where configured the buzzer LED and remote relay are activated and the corresponding screen is displayed To monitor the active alarm simply press the Alarm button and use the UP DOWN buttons to scroll any other active alarms To reset the alarms first display the alarm and then press the ALARM button again If the alarm condition is no longer active the alarm will be reset For the Automatic reset alarm wh inactive the corresponding logic will start working as normal But the LED still keeps active until press the ALARM button en it changes from active to Code Alarm description Action Reset Delay Notes ALOI Compressor and fan 1 thermal overload Comp 1 off Circuit 1 off Manual No Circuit compressor configuration ALO2 Compressor and fan 2 thermal overload Comp 2 off Circuit 2 off Manual No AL03 Compressor 1 HP pressure switch Circuit 1 off Manual No ALO4 Compressor 2 HP pressure switch Circuit 2 off Manual No ALO5 Antifreeze alarm Circuits off cooling only Automa
72. o T_T Enable weekly time bands Saturday o vn IT pes RIW_ 7 Enable weekly time bands Sunday 1 1 Sel new password for the dock branch 3e Il S o A 0 B Kal w a a o H A a ustomised text string sent with the alarm SMS Set new user branch password m nable display language selection screen when starting the unit Y N ZA S Z 8 e p e e x o o Fo mm a CH Data A Inserire password Abilita fasce Abilita off A dad de lt lt lt lt lt 2 ERE ventil princ da fascia Fasce orarie A0 A1 to 9 a b to w SERVICE loop SERV button CAREL S p A AO Display the code version and date of the software Codice FLSTDmRTOE er 1 0 gg mm aa Language TR AO Select the interface language malayEngish Bios x xx dd mm yy Al Display the version and date of the Boot and the Bios installed on Boot x xx dd mm yy the board CAREL code 0350221501 Rel 2 5 of 17 11 08 17 Display the type of board installed pCOxs pCO1 pCO3 and the pico size of the board small medium or large i SSSSS Ore funzi t A3 A4 Display the operating hours of compressor 1 0 to 999999 isplay the operating hours of compressor 2 0 to 999999 isplay the operating hours of compressor 3 0 to 999999 E RE shy Te perg Fours f ampresor a sel IS Screen for accessing the service branch password protec
73. old MOP High evaporation pressure with programmable integral time and threshold HiTcond High condensing pressure activated with condensing pressure probe read by pCO with programmable integral time and threshold Condenser 0000000000 Motor oe LI gea rats connection SN T ae mmm Evaporator FI III I 9 1 Configuring the EVD400 The EVD400 driver can be controlled in pLAN or tLAN mode One EVD400 driver is used for each refrigerant circuit set operation is bi directional The same driver ensures control in both cooling and heating mode The number of drivers enabled depends on the number of circuits set For the settings of the parameters and the address of the EVD400 see the technical manual Carel code 4030220225 CAREL code 030221501 Rel 2 5 of 17 11 08 26 10 Ambient air temperature control Ambient temperature control is performed by activating the connected devices compressors heaters valves and dampers The user can set two control set points one for cooling operation and one for heating operation The activation of the compressors can be managed with two types of control proportional control P e proportional integral control DA 10 1 Cooling Heating changeover Inputs used e Ambient air temperature probe e Cooling heating selection digital input Parameters used e Cooling set point S0 e Heating set point S1 e Cooling heating changeover selection
74. ompensation 99 9 to 99 9 This screen is displayed if set point compensation is enabled meters for compensation control in COOLING mode Compensation differential that determines the range of variation of ER RESI the set point Maximum compensation lowed Lx sw a po Compens inv Outside temperature set point for activating compensation 99 9 to 99 9 FONDIBSCSEEA This screen is displayed if set point compensation is enabled meters for compensation control in HEATING mode Diff R W P6 Compensation differential that determines the range of variation of 99 9 to 99 9 the set point aximum compensation allowed mE wm 0 to 99 9 SSES P7 inimum outlet temperature limit set point C 99 9 to 99 9 15 0 This screen is displayed if the outlet temperature probe is enabled inimum outlet temperature limit differential 9910999 30 aximum set point outlet limit temperature si 99 9 to 99 9 E aximum outlet limit temperature differential 999t0999 30 Outlet temperature set point for the antifreeze function unit OFF gt 9 9 to 9 9 Parra Outlet temperature differential for the antifreeze function unit EJ 0to 9 9 GI OFF Antigelo durante R W PC Heating valve opening in antifreeze when unit off 0 to 99 OFF unita Apertura valvola Soglia temp R W S High ambient temperature alarm threshold in COOLING mode 99 9 to 99 9 SN Interna estiva ETE reg CE E ow ambient temperature alarm threshold in COOLING mode 99910999
75. or the condenser fans controlled by Screen C3 0 to 99 9 temperature Diff R W 67 Set the control differential for the condenser fans controlled by Screen C3 0 to 99 9 temperature Evaporazione setpoint Diff RW amp 8 Setthe control differential for the evaporator fans of the fans T 99 9 Velocit max a Set the maximum speed value expressed in Volt reached by the E al 5 7 V E Velocit max a max a inverter Set the minimum speed value expressed in Volt reached by the po 4 inverter CAREL code 030221501 Rel 2 5 of 17 11 08 21 N 50Hz 60Hz dab E HN 0 G9 Set operating time at maximum speed when starting the condenser inverter nable prevent function on condenser revent function set point on condenser revent function differential on condenser revent delay activation nable coupled operation of the condenser fans Tempo speed up Ga a Si a n Hi Du gt O o e m ct e M D H K opto Qa K O O o o bi H 5 B 0 ojl N ctl lt H o e m B et cejo ct Xe entilatori di b condensazione binati rm Q i X IN EET TO T1 to 6 MANUFACTURER loop Minimo tempo Off compressore TIMES submenu minimum compressor off time minimum compressor on time ime between activations of the same compressor he delay time for the low pressure alarm et the delay time for the air flow alarm when starting the unit he delay time
76. overload generic interlock D4 Main fan thermal overload Main fan thermal overload generic interlock Compressor thermal overload High pressure switch D5 Remote on off Remote on off Heater thermal overload D6 Heater 1 thermal overload Heater 1 thermal overload Low pressure switch D7 Low pressure switch circuit 1 Low pressure switch circuit 1 D8 Comp 1 thermal overload Comp thermal overload circuit 1 D9 Low pressure switch circuit 2 Low pressure switch circuit 2 D10 Comp 2 thermal overload Comp thermal overload circuit 2 Dil Heater 2 thermal overload Heater 2 thermal overload D12 Flow switch Flow switch D 13 High pressure switch circuit 1 High pressure switch circuit 1 D 14 High pressure switch circuit 2 High pressure switch circuit 2 D15 Comp 3 thermal overload D16 Comp 4 thermal overload D17 Serious generic alarm D18 Generic alarm signal only CAREL code 030221501 Rel 2 5 of 17 11 08 1 6 2 Analogue inputs No pCO LARGE pCO MEDIUM Ambient air relative humidity Recirculation air relative humidity Ambient air temperature Outside air relative humidity Outside air relative humidity Outside air temperature B2 B3 Cond temperature pressure circuit 1 Cond temperature pressure circuit 1 Outlet temperature B4 Outlet temperature Cond temperature pressure circuit 2 pCO1 Condensing temperature pressure B5 Ambient air temperature Ambient air temperature B6 Cond temperatur
77. ow pressure circuit 1 in cooling 68 Low pressure circuit 2 in cooling 69 Clock board absent or faulty alarm 73 Enable humidity management Type of control 0 Proportional 1 Proportional Integral 105 10 Nt SSS mu CoN aio aa Y e c Y igital output 2 Y oo o output 3 21 R Digital output4 z2 R Digital output7 CH igital output 9 igital output 10 igital outpu igital output 12 igital outpu igital outpu igital output 15 igital outpu or R Digital outpt17 HR Cooling Heating changeover The flow depends on 43 the value of parameter I 87 as follows 0 Read Write R W Y Cc Cic gig jojojo c Co ojiojos Y x N ON u J a AIT 1 Read 2 Read Type of defrost temperature pressure 4 R Unit State 45 0 Off 1 On Reset alarms from the supervisor New hours and date confirm 47 R W 0 not confirm 1 confirm The variable will be tourn 0 automaticaly Unit ON OFF from the supervisor 48 R W 0 Off 1 On Compressor 1 thermal overload alarm 49 R Compressor 2 thermal overload alarm 50 R Compressor 3 thermal overload alarm 51 R CAREL code 030221501 Rel 2 5 of 17 11 08 55 Weekly time bands Saturday on off Enable fans in coupled mode Enable outside temperature probe Enable outside humidity probe Enable condenser defrost probe 1 Enable conden
78. parameters is confirmed by pressing the Enter button PRG ENTER temporarily display the pLAN serial address of the board 2 3 2 PGDO terminal with 15 buttons CCECECCE E E Description From any point of the user interface with the exception of the manufacturer group of parameters returns to the Main menu screen MO displaying the unit status readings of the control probes and operating mode In the group of manufacturer parameters organised into nested sub groups returns to screen for selecting the parameters Goes to the first screen of Service parameters AO SERVICE The Service parameters are used to check the operating status of devices and the probes calibrate the readings and run manual operations MENU PRINTER Goes to the printer menu H1 Goes to the first screen of I O parameters 10 NERE The I O parameters display the status of the inputs and the outputs on the board AND OUTPUTS Goes to the first screen of Clock parameters KO CLOCK The Clock parameters are used to display set the operating parameters for the clock board and activate the time bands Goes to the first screen of Set point parameters S0 SET POINT The Set point parameters are used to display modify the unit working set point within the limits defined in the configuration Goes to the screen for entering the user password PO PROGRAM The user parameters are used to modify the unit operating mode Goes to the screen for en
79. present the following activation sequence HEATER HEAT VALVE COMPRESSORS DIFF HEATER gt lt VALVEDIFE yig BND gt QUA OFFSET VALVE i i HEATER OFFSET i In general this can be mai with the following relationships If VALVE OFFSET VALVE DIFF BND ZN 2 then the valve will start opening when the last compressor step is activated If VALVE OFFSET VALVE DIFF lt BND ZN 2 then the valve will start opening within the compressor control band Figure 2 If VALVE OFFSET VALVE DIFF gt BND ZN 2 then the valve will start opening after the last compressor step has been activated STP The same rules are also valid for the activation of the heaters with reference to the heating valve To reverse the activation of the valve and the heaters remember that the device with the highest offset is the one that is activated last Example 1 Configuration 1 Comp Heating valve 1 Aux heater Parameters STP 21 C ZN 2 1 C BND 3 C VALVE_OFFSET 5 VALVE_DIFF 2 HEAT_OFFSET 6 HEAT DIFF 2 At the temperature of 21 1 3 17 C the compressor is started At the temperature of 21 5 2 18 C the heating valve is activated and starts modulating operation At the temperature of 21 6 15 C the heater is activated shutdown at 17 C The activation of the devices according to the above mentioned settings is represented in the following graph I D I I BND
80. r on the rotary heat recovery unit Management of the bypass damper On screen Ck the user can enable and select the type of control of the bypass damper choosing between the following options e No damper controlled e Digital control Digital output 14 e Analogue control Analogue output 5 If the management of the bypass damper is enabled the software closes the damper when the rotary heat recovery unit is not operating Management of the heat recovery unit rotor The rotor on the heat recovery unit can be controlled as follows e Control via digital output Digital output 14 e Control via analogue output Analogue output 5 The conditions for the activation of the heat recovery function are described in the following paragraphs e 10 15 1 recovery by temperature e 10 152 recovery by enthalpy If the conditions are right for heat recovery the software controls the heat recovery unit as shown in the following graphs CAREL code 030221501 Rel 2 5 of 17 11 08 43 Control via digital output Cooling Mode REG TEMP C DIFFR SETPR Heating Mode REQ 100 T REG TEMP C DIFFR NZR SETPR REQ Pump request SETPR Recovery control set point DIFFR Temperature differential NZR Dead zone REG ENTH Control probe Control via modulating output REQ 100 Cooling Mode Min Speed oe lm 0 i T i i REG TEMP C DNZR i NZR H DIFFR SETR Heating Mode Rud REG TEMP C x D
81. re used to define the enthalpy set point The purpose of the function is to maintain the recirculation enthalpy as near as possible to the enthalpy set point The following conditions are possible 1 2 En KJ gt ENE ENI STPEN In both the conditions described above in the graphs 1 2 it is not useful to open the outside damper as the inside enthalpy is closer to the enthalpy set point than the outside enthalpy 3 4 En KJ gt ENI ENE STPEN In both the conditions described above in the graphs 3 4 it will be useful to open the outside damper as the outside enthalpy is closer to the enthalpy set point than the inside enthalpy 5 6 STPENS Enthalpy set point KJ ENI Inside enthalpy KJ ENE Outside enthalpy KJ In case number 5 shown above in the graph the inside enthalpy is closer to the enthalpy set point than the outside enthalpy however in this case it is useful to open the damper as mixing the two enthalpies inside and outside will bring the inside enthalpy closer to the enthalpy set point In case number 6 shown above in the graph the outside enthalpy is closer to the enthalpy set point than the inside enthalpy consequently it is useful to open the damper as mixing the inside and outside air will bring the inside enthalpy closer to the enthalpy set point If the conditions are the same as shown above in the graphics 3 4 5 6 the damper will be opened according to the inside e
82. sation of the flow of refrigerant to the evaporator increases the overall performance of the installation at the same time guaranteeing the safety less activations of the low pressure switch less return of liquid refrigerant to the compressor In addition if the EEV is correctly sized the use of floating condensing and evaporation pressure or a low set point significantly increases the efficiency of the installation guaranteeing lower energy consumption with higher cooling efficiency Versatile because the electronic expansion valve allows the use of compressors with different capacities and operating in different conditions The use of an expansion valve requires the installation not only of the EVDriver and the expansion valve but also of a temperature sensor and a pressure transducer both fitted at the end of the evaporator on the refrigerant side on the compressor intake pipe See the diagram below to better understand the typical layout of the installation The priorities to be considered for the optimum control of the refrigeration system involve achieving a high and constant refrigerating efficiency as well as low and stable superheat values The heart of the control system is a PID control algorithm with settable superheat coefficients The following values can be set LOW Low superheat with programmable integral time and threshold LOP Low evaporation pressure operating only in transients with programmable integral time and thresh
83. ser defrost probe 2 Enable CO2 probe for air quality Enable flow switch Defrost probe 1 type 0 4 20mA 1 0 5V Defrost probe 2 type 0 4 20mA 1 0 5V Enable unit OFF from weekly time bands Enable prevent function Enable inside humidity probe Enable EVD400 drivers Load step logic 0 N O 1 N C Reversing valve logic 0 N C 1 N O Enable heating valve Enable simultaneous end for simultaneous defrosts 0 simultaneous 1 not simultaneous Enable main fan OFF from daily time bands EEPROM error alarm Driver 1 EEPROM error alarm Driver 2 EEV motor error alarm Driver 1 EEV motor error alarm Driver 2 MOP timeout alarm Driver 1 MOP timeout alarm Driver 2 LOP timeout alarm Driver 1 LOP timeout alarm Driver 2 Low superheat alarm Driver 1 Low superheat alarm Driver 2 Valve error alarm Driver 1 ON ON ON 14 2 Analogue variables 111 112 13 EE 122 N N N NININ SINININ ojojoj ON R RW Probe S1 error alarm Driver 2 Heat recovery digital output logic 0 N O 1 N C Defrost status in heat recovery 0 condition not OK 1 condition OK Status of the conditions for the activation of heat recovery Type of rotor for rotary heat recovery 0 DIGITAL 1 MODULATING 162 Status of heat recovery digital output Enable post heating during dehumidification RW DESCRIPTION ogue input 1 ogue input 2 gt 5 a 5 Di 5 Di ogu
84. st call is activated the compressors and stop and after few seconds the refrigeration cycle is reversed the compressors remain off for the set time If the time is set to zero seconds the compressor shutdown function is automatically disabled NB the main fan can also be set to stop operation during the defrost procedure G4 CAREL code 030221501 Rel 2 5 of 17 11 08 31 10 6 Reversing solenoid valves Devices used Reversing solenoid valve 1 Reversing solenoid valve 2 Parameters used Reversing valve logic The operating logic of the four way reversing valves can be set on the corresponding screen C1 The operating logic can be set as NC normally closed or NO Normally open 10 6 1 Reversing valve status The following table shows the status of the reversing valves based on the logic of the digital outputs N O N C and the operating mode Operating mode N C N O DOUT12 valve 1 DOUT13 valve 2 DOUT12 valve 1 DOUT13 valve 2 Cooling Unit ON Contact closed 1 Contact closed 1 Contact open 0 Contact open 0 Cooling Unit OFF Contact open 0 Contact open 0 Contact open 0 Contact open 0 Heating Unit ON Contact open 0 Contact open 0 Contact closed 1 Contact closed 1 Heating Unit OFF Contact open 0 Contact open 0 Contact open 0 Contact open 0 10 7 Main fan Inputs used Interlock digital input main fan thermal overload Devices used Main fan
85. summer Cr Heater control offset Pf Heater control differential Pf Temperature control set point S0 S1 Enable heater 1 Pd Enable heater 2 Pd Description of operation The auxiliary heaters are controlled based on the ambient air temperature as shown in the figure below if the following conditions are always true the unit is in heating operation or in summer if the heating in summer is enable or if post heating during dehumidification is enable e more than 0 heaters are set on screen C2 manufacturer branch password protected e heater or heater amp heating valve is selected on screen C2 manufacturer branch password protected e heater 1 and 2 are enabled on screen Pd user branch password protected STPM Control set point C OFSR Heater control offset C DIFFR Heater control differential C dus Ambient temperature C CAREL code 030221501 Rel 2 5 of 17 11 08 38 10 13 Notes on the relationship between the offset and differential settings for the heating devices and their activation sequence A relationship exists between the offsets and the differentials for the heating valve and heaters and the compressor control band in heating operation In fact once the compressor control band has been set the heating valve and heater offsets and differentials correspond to the selection of their activation sequence and overlapping The default values assigned by the application to these parameters re
86. ted 00099 TI Soglia tempo R W A7 Set unit operating hour threshold 1 to 999000 20000 funzionamento unit Soglia tempo A8 Set compressor 1 operating hour threshold 1 to 999000 10000 funzionamento Comp 1 Soglia tempo R W A9 Set compressor 2 operating hour threshold 1 to 999000 10000 funzionamento Comp 2 Soglia tempo Aa Set compressor 3 operating hour threshold h 1 to 999000 10000 funzionamento Comp 3 Soglia tempo R W Ab Set compressor 4 operating hour threshold h 1 to 999000 10000 funzionamento Comp 4 eee ae ee A A unit Reset contaore R W Ad Reset compressor 1 operating hours Y N Compressore 1 AZIO EE DN T_T Reset contaore Ae Reset compressor 3 operating hours Lm Compressore 3 pases Je Reset compressor 4 operating hours Calibrazione sonda R W Af Ambient temperature probe calibration The probe reading is d o e 9 Papers NES Tnt displayed to the right of the calibration field Outlet temperature probe calibration The probe reading is 9 9 to 9 9 displayed to the right of the calibration field cal apres oor sonda vil Outside temperature probe calibration The probe reading is 99 to 9 9 i Wa emperatura T A d Kaes isplayed to the right of the calibration field ibrazi R Ambient humidity probe calibration The probe reading is 9 9 to 9 9 displayed to the right of the calibration field cui w W Gi Outside humidity probe calibration The probe reading is sc a RES 9 to 9 9 w
87. tering the manufacturer password Z0 MENU PROG The manufacturer parameters are used to configure the unit in terms of the number and type of devices connected enable specific accessories or special functions CAREL code 030221501 Rel 2 5 of 17 11 08 8 In pLAN applications with more than one board connected in the network and a shared user terminal INFO switches the user terminal between the different units to display modify the parameters RED Temporary display of the pLAN address of the current board DOLE BLUE From printer management screen H1 starts printing screens CO to Ca Silicone rubber buttons on off A alarm B n 2 3 3 Built In terminal with 6 buttons ALARM PRG ESC EM DOWN UP ENTER 009 OOO Button Description ALARM displays the alarms mutes the buzzer and deletes the active alarms UP if the cursor is in the home position top left corner scrolls up the screens in the same group if the cursor is in a setting field increases the value DOWN if the cursor is in the home position top left corner scrolls down the screens in the same group if the cursor is in a setting field decreases the value ENTER used to move the cursor from the home position top left corner to the setting fields in the setting fields confirms the set value and moves to the next parameter PRG accesses the menu for selecting the group of parameters to be displayed modifie
88. ternal modem only P ype of modem TONE or PULSE a D D D D D D Tipo modem Testo SMS Maschera d allarme isualizza maschera lingua all acc Nuova password utente LOCK button Orologio KO Set current time hours and minutes 0 to 24 0 to 59 0 Set current date day month and year dd mm yy D to 31 1 to 12 0 S 99 1 Screen for accessing the clock branch 0 to 9999 2 Fnable time bands LN Ip 2 Enable fan shutdown from time bands op i r K3 Set start time band hh mm 0 to 24 0 to 59 paces ee This screen is displayed if the time bands are enabled Fine ln bitch ET 963505 __ Fasce orarie R W K4 Set inside set point for time bands in cooling operation C 99 9 to 99 9 25 0 Funzionamento estivo Set interno Set outside set point for time bands in cooling operation 99910999 200 Fasce orarie R W K5 Set inside set point for time bands in heating operation C 99 9 to 99 9 21 0 Funz invernale Set interno Set outside set point for time bands in heating operation 99 9 to 99 9 Eoo puce ui s E Unita da fascia settimanale Fasce orarie R W K7 Enable weekly time bands Monday This screen is displayed if the Y N mde A weekly time bands are enabled e Sed Enable weekly time bands Tuesday o vn Enable weekly time bands Wednesday o YN IT gio RW Enableweekly time bands Thursday LLN TI Ver UW ET Enable weekly ime bands Friday Tw
89. the default value is 32 proceed as follows Et ge ON INO rs 6 Power up the terminal Press the Up Down ENTER buttons until the display address setting screen is displayed Enter the numeric pLAN address with the Up and Down buttons and then confirm by pressing Enter The No link screen will be displayed If the No Link screen is not displayed press Up Down ENTER again Once the display address setting screen is displayed press Enter 3 times When the adr Priv shard screen is displayed set the correct values and confirm with YES 3 1 2 Setting the address on the pCO pCO pCO Operations required to set the pLAN address on the pCO and pCO boards 1 2 3 d En pr 3 1 3 Power down the pCO board and connect a PGDO terminal with pLAN address 0 Power up the pCO board by holding the Alarm Up buttons until the pLAN Address screen appears When the pLAN Address screen is shown follow the operations shown i e enter the number 1 2 3 buttons and then confirm by pressing Enter Power down the pCO board If necessary assign the correct pLAN address to the external terminal if featured Power up the pCO board Configure the pCO to communicate speak with the terminal if necessary Setting the address on the EVD400 To set the address of the EVD400 in both pLAN and tLAN see the EVD400 manual code 030220225 CAREL code 030221501 Rel 2 5 of 1
90. tic No ALO6 High ambient temperature Manual Settable ALO7 Low ambient temperature Manual Settable Compressor 1 LP in cooling pressure ALO8 switch Manual Settable Compressor 2 LP in cooling pressure ALO9 switch Manual Settable Compressor 1 LP in heating pressure ALIO switch Automatic Settable Compressor 2 LP in heating pressure ALTI switch Automatic Settable AL12 Compressor 1 maintenance Manual No Display only AL13 Compressor 2 maintenance Manual No Display only AL14 Unit maintenance Manual No Display only AL15 Main fan thermal overload Unit off Manual No AL16 Dirty filter Manual Settable Display only ALT7 Heater 1 and 2 overload Heaters off Manual No Display only AL18 Flow switch alarm Unit off Manual Settable AL19 Clock board fault or absent Manual No AL20 Cool set point less than Heat set point Manual No AL21 Probe B1 fault Completely off anual 605 We if ambient temp probe AL22 Probe B2 fault anual 605 AL23 Probe B6 fault anual 605 AL24 Probe B7 fault anual 605 AL25 Probe B4 fault anual 605 AL26 Probe B3 fault anual 60s AL27 Probe B8 fault anual 60s AL28 Probe B5 fault Completely off anual 605 id if ambient temp probe AL29 Heater 1 thermal overload Heater 1 off Manual 0 AL30 Heater 2 thermal overload Heater 2 off Manual 0 ALZI Serious alarm from digital input Unit off Manual No AL32 Minor alarm from digital input Manual 0 Display only AL33 Compressor 3 thermal overload anual 0 A
91. ting coil CAREL code 030221501 Rel 2 5 of 17 11 08 36 10 11 Outlet temperature limit The outlet temperature is controlled within the operating limits In cooling operation the minimum limit is controlled while in heating operation the maximum limit is controlled Inputs used Outlet temperature probe Devices used Compressor 1 4 Outside damper Heating valve Electric heaters Parameters used Enable outlet probe C9 Set type of outlet probe C9 Minimum outlet temperature limit set point P7 Minimum outlet temperature limit differential P7 Maximum outlet temperature limit set point PA Maximum outlet temperature limit differential PA Description of operation Minimum limit in cooling operation When the outlet temperature falls below the minimum limit set point plus the differential P7 the minimum outlet temperature limit function is activated which involves the following actions o Close the outside damper o Shutdown the compressors The compressors are shutdown proportionally to the value of the outlet temperature compared to the minimum limit differential set As the outlet temperature decreases all the compressors configured and operating will be shut down within the minimum limit differential interval Consequently when the outlet temperature falls below the minimum limit set point all the compressors will be off Tsup c STPSU Minimum outlet temperature limit set point C DIFFS Mi
92. ver 1 firmware high ag A R 72 R Driver 2 firmware high part Type of EVD 73 0 1 EVD400 pLAN 2 EVD400 tLAN Type of EVD probes 74 0 Non selez 1 SHeat NTC P 4 20 mA 2 SHeat NTC P raz 3 SHeat NTC NTC 4 SHeat Pt1000 P 5 SHeat NTCht P raz Type of electronic valve CAREL code 030221501 Rel 2 5 of 17 11 2008 75 0 Not used 1 Alco EX5 2 Alco EX6 3 Alco EX7 4 ALCO EX8 330 step s 5 SPORLAND 0 5 20tons 6 SPORLAND 25 30tons 7 SPORLAND 50 250tons 8 CAREL E2V P 9 CAREL E2V 10 DANFOSS ETS 25 50 11 DANFOSS ETS 100 12 DANFOSS ETS 250 400 13 CUSTOM 14 ALCO EX8 500 step s 59 Driver 1 operating mode 0 cool heat 2 defrost Driver 2 operating mode 0 cool heat 2 defrost Driver 2 position ooo y ao Prevent output delay Le Type of control probe for heat recovery 82 0 1 Internal temperature 2 Supply temperatura 3 Internal entalpy Defrost start delay heat recovery Rotary heat recovery unit rotor speed during defrost 84 Rotary heat recovery unit minimum rotor speed 85 Cross flow heat recovery unit minimum bypass damper E 6 7 8 Type of gas 7 0 Not used 1 R22 2 R134a 3 R404a 4 R407c 5 R410a 6 R507c 7 R290 8 R600 9 R600a 0 R717 1 R744 2 R728 3 R1270 opening Type of cooling heating selection 0 PANEL and supervisory BMS REMOTE 2 AUTOMATIC Type of pCO board 88 pC
93. ver2_ 79 R Saturation temperature Driver 80 R Saturation temperature Driver2 8 R Suction temperature Divert 82 R Suction temperature Driver2_ R Suction pressure Driver faf R Suction pressure Driver 85 R Heat recovery control by temperature dead zone diff 86 R W Heat recovery control by enthalpy differential 87 RW Heat recovery control by enthalpy dead zone 88 RW Defrost set point Heat recovery 89 RW EM Defrost differential Heat recovery RW Heat recovery output 0 100 with modulating bypass damper Heat recovery output 0 100 with modulating rotor 92 R Actual setpoint B R Analogue output 1 Outside air damper CT Analogue output 2 Heating vave CT Analogue output 3 0 Fan 3f R Unit status 7 0 UNIT ON 1 OFF FROM ALARM 2 OFF FROM SUPERV 3 OFF FROM BANDS 4 OFF FROM DIN 5 OFF FROM KEY 6 MANUAL PROC Inside temperature probe type 0 NTC 1 PT1000 2 0 1V 3 0 10V 4 4 20mA 5 0 20mA 6 0 5V i Outside temperature probe type 0 NTC 1 PT1000 2 0 1V 3 0 10V 4 4 20mA 5 0 20mA 6 0 5V Outlet temperature probe type 0 NTC 1 PT1000 2 0 1V 3 0 10V 4 4 20mA 5 0 20mA 6 0 5V CO2 probe type 0 1 2 0 1V 3 0 10V 4 4 20mA 5 0 20mA CAREL code 030221501 Rel 2 5 of 17 11 2008 58 Inside relative humidity probe type 0 2 0
94. w features in version 2 3 New functions 1 Summer heating management Bug fixed 1 Update macroblock to manage the EVD400 to manage pressure gas bigger than 32 0bar in order to have a right gas conversion pressure temperature temperature pressure 2 With pCO3 medium it was not possible to manage the condenser pressure temperature of circuit 2 3 Improve the flow and filter management in case of the main fan is switched off by scheduler in this case when the fan was off then the flow and filter alarm can happen the same 4 n case of the main fan is switched off by scheduler the delay time off fan was not respected 1 5 Main new features in version 2 4 Bug Fixed 1 Fixed the freecoling setpoint it didn t change if time band changed 1 6 Main new features in version 2 5 Bug Fixed 1 Fixed management in analog outputs Y3 e Y4 in coupled fan mode added a check in active compressors to manage the fan rotation CAREL code 030221501 Rel 2 5 of 17 11 08 5 1 7 Introduction and functions performed by the program The Standard Roof top program can be used with CAREL pCO medium pCO or pCO Medium and Large boards it manages the operation of Roof top air conditioning units The main functions of the program are e freecooling in cooling e freecooling in winter e freeheating e management of 1 or 2 electric heaters e humidity management e minimum and maximum outlet temperature control e alarm management alarm lo

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