Home

CLIMATIC™ USER MANUAL

1. LENNUX V2 2 00 HOT REGULATION WITH GRADIENT To adapt the regulation set point to the outside air temperature for improved counterbalancing of heat loss to the outside from the premises to be heated The regulation set point CONSREG is calculated according to the following parameters TEA lt gt Outside air temperature C CONSAI lt gt 1st reference air temperature selected C CONSA lt gt 2nd reference air temperature selected C TECS lt gt Maximum hot water temperature instruction C CONSEM Required water instruction for the air instruction CONSAI C CONSEM must be less than TECS 2 CONSEC Required water instruction for the air instruction CONSA C CONSEI must be greater than 25 C PENTEC Regulation gradient 96 The gradient is calculated using the following equation PENTEC 100 x CONSEC CONSEM CONSA CONSAI CONSREG C ON S EM r e Ten Neue EE PENTEC CONSEC 25 Oo C BE EE N CONSAI CONSA TEA CONSREG CONSEC PENTEC x TEA CONSA 100 10 C C C Example of regulation Avec CONSAI CONSEM 50 CONSA 15 C CONSEC 30 gt PENTEC 80 LENNOX V2 2 00 CONTROL OF COMPRESSORS The compressors are started up and stopped in the order which avoids the anti short cycle as far as possible and evens out their operating times Start up and stopping
2. LENNOX V2 2 00 CARTE FILLE SORTIE ANALOGIQUE KP11 Presentation The KP11 extension is presented in the form of a small plug in card positioned on the main KPO1unit It supplies analogue voltage 0 10Vdc 10mA A CPU may receive 2 cards KP11 at the most Precautions When installing the module take care to comply with the circuit orientation as printed on the main KPO1 unit Location of modules and output connectors on the KP01 card a DU SIM vil Cac nl 0000 BZU ou l 61H TAS po 9 s gt F E z 4 1X3 MITV En DDR De SE B 20mA LENNOX V2 2 00 DIGITAL CONSOLE KP02 O Internal wiring Cable earth connection Keyboard ribbon cable Earth ferrule Keyboard earth connection O External wiring H Vac E D RI LENNOX V2 2 00 CONSOLE GRAPHIQUE KP07 6 Presentation Batter Configuration switches for 4 external internal supply O IMETIN Connection for shield by earth ferrule LENNOX V2 2 00 Command switch for back lighting VDU CONSOLE Key LD1 LED presence of dialogue PT1 PT2 12Vac PT3 Vref PT4 Vee PT5 Gnd PT6 VLcd PT8 Reset PTO Power Fall SW1 SW2 Configuration switches internal external supply SWS On off switch for back lighting on display unit Note The cable linking the display unit to the main unit must be earthed by means of a ferrule fixed to the front fa
3. CLIMATIC USER MANUAL PROVIDING SOLUTIONS LENNOX CHILLERS V 2 2 GENERAL CONTENTS Page CONTROL AND REGULATION nnn 2 OPTION 15 MACHINE FAULTS nennen nennen nennen 22 CIRO IT FAULT a S 29 COMPRESSOR FAULT KE 36 MISCELLANEOUS FAUL KE 42 KP02 DIGITAL CONSOUE 50 VISUAL DISPLAY UNIT VDU KP 07 55 ELECTRONIC CARD DATA uasa a RUM 78 LENNOX User Manual CLIMATIC II Liquid chillers R f RFL V2 2 00 CONTROL AND REGULATION SOMMAIRE Page DE FUNCTION ereenn N 3 CONTROL OF EVAPORATOR PUMPS eene 4 COLD THERMOSTAT E 5 HOT THERMO SI WE 6 COLD REGULATION WITH GRADIENT eenen eenen 7 HOT REGULATION WITH GRADIENT eee 8 CONTROL OF COMPRESSORS sse 9 CONTROL OF CAPACITY REDUCTIONS FOR COLD REGULATION eeeeeennennn nnns 10 CONTROL OF CAPACITY REDUCTIONS FOR HOT REGULATION E 11 CONTROL OF ELECTRONIC EXPANSION VALVE aaeeeaaa0000000aa 12 CONTROL OF CONDENSER FANS eesoanaanaannnnnnnnnnnenrrrrnnsnseennn 13 SPECIFIC VALVES FOR SCREW COMPRESSORS 14 LENNOX V2 2 00 IDLE FUNCTION The idle function enables the machine to be stopped during certain times of the day or certain days of the week Outside the idle period the refrigeration unit operates normally in accordance with its instructions Idle time is defined by 4 instructions all included in the idle period HDEBUTI Start time of daily idle
4. O MODIFICATION key Pressing this key activates modification mode see 1 2 1 2 Modification mode This mode is used to modify the values of all modifiable variables displayed on the active screen This mode uses the 4 keys 1 2 3 and 4 assigning them pre defined functions Key Associated icon Key function Selection of the variable to be modified SD Selection of the number to be modified Press the key successively to move the cursor digit by digit from the right to the left then the cursor is repositioned on the last digit of the value to be changed Incrementation of the digit from O to 9 Confirmation of the current modification LENNOX User Manual CLIMATIC II Liquid chillers R f RFL V2 2 00 KP07 VDU CONSOLE Modification mode offers the user the following main possibilities e Selecting the number of the controller on which variables are to be displayed where several KPO1 cards are connected to the same KP07 console e Setting instructions e Configuration of on off switches on circuits To exit from modification mode and return to the active screen press MODIFICATION key Notes During the modification phase the screen is no longer updated If a modification is not confirmed the variable remains at its previous value 1 3 Contrast adjustment Contrast on the display unit is adjusted in modification mode see 1 2 e Press successively on key A to increas
5. 12Vac isolated Clock DIL microswitches Configuration switches for internal or external supply to chaining link Battery switch on or off Configuration switch type analogue input V2 2 00 EXTENSION 16 ENTREES LOGIQUES KP03 The KP03 card is used for processing the 16 logic inputs 10V 10mA It is possible to connect up to 3 extensions to a KPO1 card to attain a maximum capacity of 8 3 x 16 56 logic inputs The state of each input is shown by an LED Addressing configuration gv Iv pre a 344 SCH 7948 LI LBI LJ LM LIG LES LET L F7 S Logic inputs 1 to 16 common to all inputs LOO L LES LIM L n Litt LES zn 12Vac isolated Key J1 J2 RJ45 connectors for IPC Bus J3 2 point removal pin connector pitch 5 08 for 12Vac external supply JEL1 JEL2 12 point removal pin connectors pitch 3 81 for logic inputs J4 J7 Locations for connection to earth using FASTON 6 35 earth lugs LD1 LD16 LED status of 16 inputs LD17 LED presence of power from KPO1 LD18 LED presence of 12Vac isolated power SW1 Switch for the configuration of the card address The position of jumpers for each configuration is marked on the card PT1 Earth PT2 Vcc1 5V PT3 Vcc2 11V isolated PT4 OV isolated PT5 12V rectified and filtered before regulation PT6 VRF PT7 SDA I C signal DATA PT8 SCL PC signal CLOCK LENNOX V2 2 00 EXTENSION ANALOGUE OUTPUT KP04 The KP04 card prov
6. 8 analogue inputs KP05 card 4 extensions 8 supplementary logic outputs KP08 card 2 asynchronous serial links for dialogue with e amicro computer or a VDU console 1200 2400 or 4800 baud e abasic digital console KP02 and or a VDU console with LCD display unit KP07 Replacement of a KPO1 card Procedure to be followed Note the values of all settings Turn off the power supply to the card and change the card Retrieve the EPROM from the old card and fit it to the new one see drawing below Reconnect all the connections to the CLIMATIC referring to the wiring diagram Set the battery jumper to position on T together with the various configuration jumpers Turn the power supply to the card back on and enter the old settings on the new card Note Never connect or disconnect the 120 connectors when the power supply to the card is on Positioning direction for the EPROM Keying band LENNOX V2 2 00 CLIMATIC CARD KP01 e Supply A single transformer provides the power supply to the Climatic and its extensions 12V 6VA for supply to KPO7VDU console 230Vac 12V 7 2VA for isolated supply to extensions KP03 KP04 KP01 12V 50VA for KPO1 supply O Switches F SW2 SW3 By default the card is configured in If there is a link between cards maximum 8 set switches as follows e Card 0 master internal supply S
7. Malfunction of liquid solenoid valve Check operation of solenoid valve Dehydrator clogged Replace the dehydrator Wiring fault or high pressure safety cut out wrongly Check setting and wiring of high pressure safety cut set out LENNOX V2 2 00 DISCHARGE TEMPERATURE TOO HIGH A Logical variable DREFmn Incident codes KP02 mn6 KPO7 icon ed The discharge temperature on compressor mn REFmn stays over 120 C for over 9 seconds Immediate halt of compressor mn amp The fault is displayed on the screen amp The remote fault report is delayed for 6 minutes Resetting The first 2 faults are reset automatically after a delay of 30 minutes on condition that REFmn has dropped below the maximum After this compressor mn can only be restarted by manual resetting this reset can only be processed 30 minutes after generation of the fault Note Counters for discharge too high failures TOREFmn are all reset to zero daily at 6 pm on condition that the maximum number of authorised faults has not been reached Trouble shooting Discharge sensor fault Replace sensor Wiring fault on the sensor Check sensor connection Insufficient refrigerant in circuit Check refrigerant Superheat setting too high Check superheat setting LENNOX V2 2 00 INTERNAL PROTECTION TRIPPED A Logical variable DPINTmn Incident codes KP02 mn7 KPO7 icon Eri Semi hermetic compressors reciprocating and screw type
8. VCONSE 3xDIFETG VCONSE VCONSE DIFETG VCONSE 2xDIFETG In the event of a breakdown there is no logging between units If a machine loses its connection with unit G1 it regulates its instructions independently of the other units If card no 0 of machine G1 is absent from the chaining then all units are regulated independently according to their own instructions LENNOX V2 2 00 MACHINE FAULTS CONTENTS TEMPERATURES OF CHILLED WATER OUTSIDE RANGE 23 HOT WATER TEMPERATURES OUTSIDE RANGE 24 INSUFFICIENT FLOW OF CHILLED WATER esses 25 INSUFFICIENT FLOW OF HOT WATER esee 26 ABSENCE OF 230V SUPPLY WITH BACKUP 27 INCORRECT SEQUENCE OF PHASES esee 28 LENNOX V2 2 00 TEMPERATURES OF CHILLED WATER OUTSIDE RANGE A Logical variable DTEG Incident codes KP02 1 KPO7 icon IN The input or output chilled water temperature measured by the sensor is outside the authorised range Water without glycol Water with glycol maxi 30 alycol TEEG lt TEGI ou TEEG gt 65 C TEEG 15 C ou TEEG gt 65 C TSEG lt TEGI ou TSEG gt 65 C TSEG lt 15 C ou TSEG gt 65 C TEEG Chilled water input temperature C TSEG Chilled water output temperature C TEGI lt gt Minimum chilled water temperature for evaporator C Immediate machine halt amp The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting Automatic fault resetting once
9. 1 as long as THER is strictly positive or V3VFC is not fed LENNOX V2 2 00 HEAT RECOVERY On air units with heat recovery condenser to maintain the hot water output temperature as close as possible to the instruction whilst adapting the air condenser capacity to the excess thermal capacity to be discharged Outline diagram of heat recovery process Heat recovery water condenser A 933L1N E DISI I EI 1 A m Air condenser 1 RTASPI N E io Determination of heat recovery mode Unit operation in heat recovery or total discharge mode is defined by the RECUP parameter which is set to 1 or 0 RECUP is determined depending on FSR lt gt Recovery condenser flow controller TSECR lt gt Hot water output temperature C CONSEH Hot water instruction C RECUP is set to 1 if FSR is on for over 15 seconds and TSECR lt CONSEH RECUP remains at 1 as long as FSR has not been off for over 15 seconds and TSECR lt CONSEH 2 C Control of air condenser fans On switching to recovery mode the ventilation thermostat for circuit n THVn is forced to O for 5 seconds If the high pressure of circuit n exceeds 23 bar THVn is increased by 1 stage The ventilation thermostat continues to be incremented by 1 every TEMPOV time interval as long as the condition on the pressure is satisfied Every time THVn
10. 2 C The pump priority changes automatically once a week on Monday at 6 p m In the event of a fault occurring on the pump in service the unit automatically transfers to the second pump on condition that the latter is available Note The CLIMATIC waits 2 minutes before stopping the pumps after a request to stop the machine or circuits to avoid any risk of the evaporator freezing LENNOX V2 2 00 COLD THERMOSTAT To bring the temperature of the cooled fluid as close as possible to the set point by adapting the number of compressors in service to the heat load in operation The thermostat THER controls the switching on and off of compressors It is determined in accordance with the following parameters TEEG lt gt Chilled water input temperature C CONSREG Active instruction for output of chilled water C This instruction is equal to CONSEA or CONSEB depending on the status of a logic input associated with the variable CHPCONS Si CHPCONS 0 CONSREG CONSEA Si CHPCONS 1 CONSREG CONSEB For regulation with air gradient see page 7 DELTAT Desired temperature difference between water input and output C ENCL lt gt Operating differential for a regulation stage C This variable is calculated as follows ENCL DELTAT No Of compressors Example of a machine with 4 compressors THER CONSREG TEEG With CONSREG 7 TEEG THER TEEG C ot DELTAT 5 THER G C THER
11. EJ 7 D nv C63 D RL3 8 cza J C6 Loz SC L SE R8 O Caz 2 N MO 3 Ru Extensions PE CF E J21 KP1 1 2 pia E cr JA n lt analogue di ALI e x 1 J Lpul IL P D ig Es C82 PTM PTH LED ge TER Ip 3 power e jn O p samat OD on N N A CH A sia AI OF Chaining Battery connector LED presence chaining dialogue LENNOX V2 2 00 12Vac isolated Battery configuration on off supply 160mAT fuse Chaining configuration Key J1 to J8 J10 J11 J13 J14 J15 J17 J21 J18 J22 J24 J25 J26 PT1 PT2 PT3 PT6 PT4 PT5 PTZ PTO PT10 PT11 PT13 PT12 SW1 SW2 SW3 SWA SW5 LENNUX CARTE CLIMATIC KPO1 3 point removable pin connectors pitch 5 08 for 8 changeover relays 3 point removable pin connectors pitch 5 08 for 12Vac supply and Earth 2 point removable pin connectors pitch 3 81 for 12Vac isolated supply 3 point removable pin connectors pitch 3 81 for card chaining RJ45 connectors for 120 bus 2 point removable pin connectors pitch 3 81 for 2 analogue outputs 4 point removable pin connectors pitch 3 81 for 2 serial links 2 point removable pin connectors pitch 3 81 for 18Vdc supply 12 point removable pin connector pitch 3 81 for analogue inputs 12 point removable pin connector pitch 3 81 for logic inputs 12Vac OV isolated 11V isolated Vec 5V Gnd Vref Reset Power Fail
12. and scroll compressors The thermal protection on the motor windings on mn PINTmn is tripped Hermetic reciprocating compressors Compressor mn has been operating for 6 minutes and the discharge temperature REFmn is less than 6 This shows that the internal protection on the compressor has been tripped R22 amp R407C R134a amp R404A 30 Immediate halt of compressor mn amp The fault is displayed on the screen The remote fault report is delayed for 6 minutes Note switched off the fault is not memorised Resetting Compressor mn can only be restarted after re closing the internal protection ans a manual reset Trouble shooting Fault on supply to internal protective relay Check supply to relay Discharge sensor badly wired or defective possible Check sensor connection and replace if necessary with hermetic reciprocating compressors Superheat setting too high Check superheat setting LENNOX V2 2 00 MISCELLANEOUS FAULTS CONTENTS Page INTER CPU DIALOGUE INTERRUPTED ee 43 INSUFFICIENT FLOW ESTABLISHED BY THE PUMP 44 FANS CIRCUIT BREAKERS TRIPPED eene 45 PUMP CIRCUIT BREAKER TRIPPED nonnen 46 REMOTE INSTRUCTION UNDETECTED mmm 47 TEMPERATURE OF FREE COOLING OUTSIDE RANGE 48 DIALOGUE BETWEEN CPU AND KP07 INTERRUPTED 49 LENNOX V2 2 00 INTER CPU DIALOGUE INTERRUPTED A Logical variable DSLI Incident codes KP02 8 KPO07 icon s E The chaining
13. chilled water temperatures return to normal operating range Water without glycol Water with glycol maxi 30 glycol TEGI 2 lt TEEG lt 60 C 10 C lt TEEG lt 60 C TEGI 2 lt TSEG lt 60 C 10 C lt TSEG lt 60 C Trouble shooting Sensor fault on input or output of chilled water Replace sensor Wiring fault or disconnection of sensor Check sensor connection LENNOX V2 2 00 HOT WATER TEMPERATURES OUTSIDE RANGE A Logical variable DTEC Incident codes KP02 2 KPO7 icon J The input or output temperature of hot water measured by the sensor is outside the authorised range TEEC 27 C or TEEC gt TECS TSEC 27 C or TSEC TECS lt gt Hot water input temperature C TSEC Hot water output temperature C TECS ch Maximum hot water temperature at condenser C Immediate machine halt amp The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting Automatic fault resetting once hot water temperatures return to normal operating range TEEC gt 27 C and TEEC lt TECS 5 C TSEC gt 27 C and TSEC lt TECS 5 C Trouble shooting sensor fault on hot water Replace the sensor Wiring fault or disconnection of the sensor Check sensor connection LENNOX V2 2 00 INSUFFICIENT FLOW OF CHILLED WATER A Logical variable DFSE Incident codes KP02 3 KPO7 icon The flow switch FSE detects an insufficient flow in th
14. codes KP 92 on The thermomagnetic circuit breaker on pump k is tripped ELECPK 0 Pump k is in service and the unit has only one pump C2POMPE 0 Immediate halt of pump k Immediate machine halt amp The fault is displayed on the screen The remote fault report is delayed for 6 minutes Pump k is in service and the unit has two pumps C2POMPE 1 Immediate halt of pump k Start up of the 2nd pump see chapter control of evaporator pumps page 4 amp The fault is displayed on the screen The remote fault report is delayed for 6 minutes Pump k is not in service amp The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting he machine restarts automatically 20 seconds after the fault has been cleared and the CLIMATIC has restarted the pump The fault is reset automatically once the pump circuit breaker is reset The fault is reset automatically once the pump circuit breaker is reset Trouble shooting Bad connection or connections too tight Check connections Circuit breaker wrongly set oet the protection in accordance with the rated current for the pump LENNOX V2 2 00 REMOTE INSTRUCTION UNDETECTED A Logical variable DCONS Incident codes KP02 95 KP07 icon 23 4 20mA Description The unit should be regulated to the water instruction sent remotely by the customer SGLCONS 1 but the signal received is incorrect TCONS l
15. counters TOREF21 SS TOOILZI This screen shows the values of counters for all faults on the circuit and its compressors LENNOX V2 2 00 KP07 VDU CONSOLE Ill 6 c TOR outputs and other variables This screen shows the state of the of actuators which command circuit components other than the compressors whose operation has already been described in operating states for circuits see S 111 4 This screen also displays significant calculation variables for the circuit such as the anti short cycle for compressors Ill 7 Pump operating states Nature of any fault present on one of the pumps Operating states of pumps on or off 111 8 Machine operating states Number of stages required for regulation Number of compressors in operation on the machine LENNOX V2 2 00 KP07 VDU CONSOLE Ill 9 Tables of general variables This screen gives access to the values of analogue inputs logic inputs TOR outputs fault counters and other variables relating to the entire machine not related to a specific refrigeration circuit Each variable is identified by its mnemonic 11 9 a Analogue inputs This screen contains the temperatures associated with specific options e g temperature of hot water output from heat recovery temperature of chilled water output from free cooling II Ob Logic inputs S ELECP1 ELECP2 Sa ELECU CHPCONS C2POMPE This screen shows the sta
16. detectors faulty Incorrect opening of expansion valve IV 5 c Compressor faults Insufficient oil pressure M a A Tripping of thermomagnetic circuit breaker for compressor EHA d Excess high pressure A A Discharge temperature too high ZD Tripping of internal protection for compressor IV 5 d Miscellaneous faults Dialogue interrupted between 2 CPU cards on network Insufficient water flow although operational command has been issued to pump Tripping of thermomagnetic circuit breaker for at least one fan Tripping of thermomagnetic circuit breaker for pump Water tank level or pressure insufficient Bad reception of 4 20 mA signal transmitted remotely for water instruction IN Chilled water temperature at the input of free cooling outside authorised range Dialogue interrupted between KP07 console and a CPU card on the network LENNOX V2 2 00 KP07 VDU CONSOLE IV 6 On off settings and instructions Cid Cz H C3H C4 H On off refrigeration circuit no 1 On off refrigeration circuit no 2 On off refrigeration circuit no 3 On off refrigeration circuit no 4 On Off pump no 1 On Off pump no 2 First chilled water setting CONSEA Second chilled water setting CONSEB Ac
17. is incremented the value of the hot water output temperature TSECH is memorised in the variable MTSECR In recovery mode if TSECR becomes lower than MTSECR whilst at least one fan is in operation the ventilation thermostat is decremented Note On water units the CLIMATIC does not include heat recovery LENNOX V2 2 00 MANAGEMENT OF UNITS IN PARALLEL To provide staging of units in order to adjust the temperature of the cooled fluid as closely as possible to the set point Management of the installation by an independent CPU card recommended configuration General regulation is by a KPO1 independent of those which directly control the units Dialogue between the cards is by hard contact only without chaining Outline hydraulics diagram case of chilled water production Pump Buffer chamber an TBAL The thermostat THERG controls switching on and off of the different installation units Gn Solenoid valve V2V1 Thermostat on units THERG is calculated in accordance with the following parameters TBAL lt gt Water temperature in the chamber C CONSEG Water instruction for regulation of units C ENCLG lt gt Operating differential for one unit C DIFETG lt gt Differential between units C Case of an installation with 4 machines CONSEG TBAL LENNOX V2 2 00 REGULATION OF UNITS IN PARALLEL ms un EE DIFETG 1 5 152 Notes THERG can only be incremented b
18. link between 2 or more cards on the network is interrupted for over 15 seconds Re initialisation of cards 3 attempts amp The fault is displayed on the screen Resetting Automatic resetting of the fault 3 minutes after the link between all cards is restored Trouble shooting Wiring fault on link between CPU s Check connection on link between CPU s Power failure on one of the cards Check electrical supply to cards Faulty positioning of SW2 and SW3 jumpers Check the position of jumpers LENNOX V2 2 00 INSUFFICIENT FLOW ESTABLISHED BY THE PUMP A Logical variable DSDEBK Incident codes KpB1 pump 1 KPO7 icon NN 82 pump 2 Pump k supplying the evaporator has had the operational command for 20 seconds The flow switch FSE detects insufficient flow in the exchanger for over 25 seconds Case O The unit has one pump only or no pump C2POMPE 0 Immediate halt of pump k The fault is displayed on the screen The remote fault report is delayed for 6 minutes 22 seconds before generation of the fault the machine has been stopped with the fault insufficient flow of chilled water see page 23 The unit has two pumps C2POMPE 1 Immediate halt of pump k Start up of the 2nd pump see chapter control of evaporator pumps page 4 amp The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting The unit has no pump C2POMPE 0 and the flow sw
19. one Lastonestopped EE BEEK al BEE BE alt 23 34 a 3123 y 44 In operation x O n n O i Q E O O LENNOX V2 2 00 CS CONTROL OF CAPACITY REDUCTIONS FOR HOT REGULATION To adjust the hot water output temperature as closely as possible to the set point by adapting compressor capacity Capacity reduction valves are only available on semi hermetic reciprocating or screw compressors On a machine with several compressors only the last one started up can modify its capacity The other compressors are maintained at full capacity The number of capacity reductions to be put into operation is defined by the thermostat THERR in accordance with the following 2 parameters TSEC lt gt Hot water output temperature C CONSREG Chilled water instruction C TSEC CONSREG 0 5 C CONSREG temps THERR 0 1 0 1 2 j 1 0 As soon as TSEC becomes greater than CONSREG 0 5 C capacity is reduced As long TSEC remains above CONSREG 0 5 C an additional capacity reduction cuts in if applicable every 2 minutes If at least one capacity reduction is in service one is stopped as soon as TSEC is less than CONSREG 1 C As long as the TSEC condition is satisfied an additional capacity reduction is stopped every 2 minutes Note At start up the compressors are maintained at reduced capacity for 1 minute LENNOX User Manual CLIMATIC II Liquid chillers R f RFL V2 2 00 CONTROL OF C
20. period HFINI lt gt End time of daily idle period JDEBUTI Start day of weekly idle period JFINI lt gt End day of weekly idle period As an option the customer has the facility of confirming or stopping the idle function by remote control by means of a hard contact connected to the logic input provided for this purpose see wiring diagram The variable associated with this entry is MAARI IT MAARI O idle times are ignored Ift MAARI 1 idle times are processed Example The user wishes to stop the machine from Monday to Friday from 7 p m to 6 a m the next morning all day on Saturday and Sunday In this case the instructions should be set as follows HDEBUTI 19 HFINI 6 JDEBUTI 7 JFINI 2 Note By convention Sunday is the first day of the week Sunday 1 LENNOX V2 2 00 CONTROL OF EVAPORATOR PUMPS To control the flow of refrigerant in the evaporator There are two possible types of regulation defined by the variable C2POMPE If C2POMPE 0 the CLIMATIC controls one pump or none If C2POMPE 1 the CLIMATIC controls two pumps in normal standby mode The user configures the C2POMPE parameter through switch 1 or SW1 of CPU card Case The pump POMPET is in service if all the following conditions are satisfied gt At least one on off circuit n is ON MAARn 1 gt The remote on off switch for the machine is ON MAARD 1 gt This is not an idle period INOCC
21. setting ranges are as follows Item Minimum value Maximum value Hours and minutes 00 00H 23 59H Day of the month 1 31 Day of the week 1 7 Month 1 12 Year 0 99 Pressing key A saves the value entered Note Months with less than 31 days are not automatically checked on entry If a day is entered which is not compatible with the current month the value is refused at dater level and the old day is retained Examples geg 10 September LENNOX V2 2 00 KP07 VDU VISUAL DISPLAY UNIT CONSOLE IV GENERAL PRESENTATION The KP07 console is a man machine interface with a black and white liquid crystal graphics screen back lit with definition 240 x 128 pixels It also has 2 indicator lights and 12 keys LCD screen General alarm indicator red 7 SCREEN keys Power on with variable Indicator yellow nctions 5 offset keys with fixed functions The principal functions of the console are e Management of the tree structure of interactive screens e Permanent updating of all dynamic parameters displayed on the different screens e Saving successive states of predefined variables to be used for analogue and event logs A KP07 console can be connected to a maximum of 8 distinct controllers on condition that they all have the same structure of variables The number of controllers connected is declared in the application program for the VDU If a single CPU is connected its card number is also declared
22. starts with the rightmost digit then moves to the left Decrementation is in a similar manner using keys A and As soon as key V is released the value displayed is sent to the CPU Access to instructions other than CONSEA CONSEB DELTAT MAARCn and RESET is restricted For access to all instructions a password must be entered in the reserved instruction at address no O If the password is correct the following message is displayed when key V is released After 5 minutes of keypad inactivity the console automatically cancels unlimited access to instructions To modify a protected instruction the password must be re entered Ill 3 READ DATER mode Head accessible dater elements are The element is selected by holding key A pressed down and pressing briefly on or LENNOX V2 2 00 CONSOLE NUMERIQUE KP02 Pressing key V displays the value of the selected data item Note Ifthe user does not press V the value appears automatically after 1 minute III 4 SET DATER mode This mode can be used to adjust the 6 dater elements hours and minutes gt the day of the month gt the day of the week the month gt the year gt The element to be modified is selected as for READ DATER mode In the same way as for instructions incrementation of the value is by simultaneously pressing keys V and and decrementation by simultaneously pressing V and For the different types of data
23. the pumps Access to operating state for hot water pumps no faults are reported on the pumps Access to operating state for hot water pumps there is a fault on the pumps Access to operating state for hot water pumps there is a fault on the pumps Access to operating state for machine there is a fault on the machine Access to operating state for machine there is a fault on the machine Reset faults and fault counters to zero Access to refrigeration diagram for selected circuit LENNUX V2 2 00 Access to operating state for refrigeration circuit no 2 no faults are reported on the circuit Access to operating state for refrigeration circuit no 3 no faults are reported on the circuit Access to operating state for refrigeration circuit no 4 no faults are reported on the circuit KP07 VDU CONSOLE Access to fault log Access to the different tables of variables Access to analogue inputs other than those shown on refrigeration diagrams Access to logic inputs Access to TOR outputs Access to miscellaneous variables Access to fault counters Access to on off controls and instructions Selection of the variable to be modified see 1 2 Selection of figure to be modified see 81 2 Incrementation of figure from O to 9 see 81 2 Validation of current modification see 81 2 t H 2 E a ly H Access to on off controls for refrigeration circuits Access to th
24. this circuit n can only be restarted after manual resetting For the first fault the resetting is automatic after 30 minutes if the evaporation temperature has returned to over TBPI 3 C After this circuit n can only be restarted after manual resetting Freeze failure counters TOGEL n are all reset to zero daily at 6 pm on condition that the maximum number of authorised faults has not been reached Trouble shooting Incorrect TBPI instruction settings Check instruction settings Evaporation suction or chilled water output sensor Replace the sensor fault Wiring fault or disconnection of the sensor Check sensor connection Water flow in the evaporator insufficient Check flow and setting of flow controller LENNOX V2 2 00 INSUFFICIENT SUPERHEATING A Logical variable DSURFn Incident codes KP02 n4 KPO7 icon je This fault is only processed on units fitted with electrical expansion valves A compressor on circuit n has been operating for at least 2 minutes and one of the 2 following conditions remains satisfied for at least 2 minutes TASPn gt TEEG 3 C TASPn TBPn lt 2 TASPn lt Suction temperature on circuit n C TBPn Evaporation temperature on circuit n C TEEG Chilled water intake temperature C Immediate halt of circuit n amp The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting Fault resetting is manual Trouble
25. 2 2 00 KP07 VDU CONSOLE Parameters for regulation with gradient on air temperature Idle timers day night IV 3 Identification of components NER Machine Refrigeration circuit no 1 Refrigeration circuit no 2 Refrigeration circuit no 3 Refrigeration circuit no 4 Compressor or pump no 1 in circuits or pumps operating states respectively Compressor or pump no 2 in circuits or pumps operating states respectively n O 1 1 Compressor no 1 for refrigeration circuit no 1 2 Cl Compressor no 2 for refrigeration circuit no 1 1 CZ Compressor no 1 for refrigeration circuit no 2 2 Ce Compressor no 2 for refrigeration circuit no 2 1 C3 man Compressor no 1 for refrigeration circuit no 3 1 4 Compressor no 1 for refrigeration circuit no 4 Chilled water pump no 1 ON n l d Chilled water pump no 2 LENNOX V2 2 00 CONSOLE GRAPHIQUE KP07 1 TE 8 Hot water pump no 1 F wu 8 Hot water pump no 2 IV 4 Operating states Stages required for chilled water regulation Stages required for hot water regulation Compressor in operation representation on refrigeration diagram Compressor in operation Compressor in operation at full capacity Compressor in operation at reduced capacity Compr
26. 22 832 26 61 fax 48 22 832 26 62 e mail lennoxpolska inetia pl PORTUGAL LENNOX CLIMATIZACAO LDA tel 351 2 999 84 60 fax 351 2 999 84 68 RUSSIA LENNOX DISTRIBUTION MOSCOU t l 7 095 246 07 46 fax 7 502 933 29 55 e mail janka alexemtu net ru SLOVAKIA LENNOX SLOVAKIA t l 421 7 44 88 92 16 fax 42174488 16 88 LENNOX REFAC S A t l 34 902 400 405 fax 34 91 542 84 04 e mail marketing lennox refac com UKRAINE LENNOX DISTRIBUTION KIEV t l 380 44 213 14 21 fax 380 44 213 14 21 e mail jankauk uct kiev ua OTHER EUROPEAN COUNTRIES LENNOX DISTRIBUTION AFRICA t l 33 4 72 23 20 00 MIDDLE EAST fax 33 4 72 23 20 28 e mail marketing lennoxdist com LENNOX www Lennox com Climatic Chiller V2 2 02 2000
27. APACITY REDUCTIONS FOR HOT REGULATION To adjust the hot water output temperature as closely as possible to the set point by adapting compressor capacity Capacity reduction valves are only available on semi hermetic reciprocating or screw compressors On a machine with several compressors only the last one started up can modify its capacity The other compressors are maintained at full capacity The number of capacity reductions to be put into operation is defined by the thermostat THERR in accordance with the following 2 parameters TSEC lt gt Hot water output temperature C CONSREG Chilled water instruction C TSEC CONSREG 0 5 C CONSREG temps THERR 0 1 0 1 2 j 1 0 As soon as TSEC becomes greater than CONSREG 0 5 C capacity is reduced As long TSEC remains above CONSREG 0 5 C an additional capacity reduction cuts in if applicable every 2 minutes If at least one capacity reduction is in service one is stopped as soon as TSEC is less than CONSREG 1 C As long as the TSEC condition is satisfied an additional capacity reduction is stopped every 2 minutes Note At start up the compressors are maintained at reduced capacity for 1 minute LENNUX V2 2 00 CONTROL OF ELECTRONIC EXPANSION VALVE To control correct filling of the evaporator with refrigerant in order to obtain highest efficiency whilst protecting the compressor against slugging The expansion valve is control
28. CONDENSER FANS To maintain as stable a condensation pressure as possible without fans cutting in too frequently The CLIMATIC calculates the number of ventilation stages THVn required for the proper functioning of each refrigeration circuit THVn depends on the following parameters PTHPn lt gt Condensation pressure in circuit n abs bar TEA lt gt Outside air temperature C HPHAUT lt High pressure limit abs bar HPBAS Low pressure limit abs bar Setting The minimum difference between HPHAUT and HPBAS is 5 bar instructions TEMPOV 4 Timing of raising or lowering of ventilation stage s PTHPn HPHAUT 2bar HPHAUT 1bar HPHAUT At t 0 start up of Ist compressor N 1 T TEMPOV HPBAS Ibar HPBAS T T 2 TA T time THVn 0 1 2 3a s 3 Fan operation At the start up of the first compressor on the circuit as soon as high pressure becomes greater than HPBAS 1bar N fans are immediately started up the number N depends on the outside air temperature When PTHPn exceeds HPHAUT the thermostat is increased by one stage If the pressure remains above HPHAUT THVn continues to be increased by one unit every T time interval HPHAUT lt PTHPn HPHAUT 1bar T 2 TEMPOV If HPHAUT 1bar lt PTHPn HPHAUT 2bars T TEMPOV 2 PTHPn gt HPHAUT 2bars T TEMPOV 4 Turning off fans Once PTHPn falls below HPBAS THVn is reduced by one stage As long as PTHPn remains belo
29. G C ENCL 1 25 95 203 10 75 8 25 Remarque The thermostat is only authorised to increase by a stage if the following conditions are satisfied gt THER has not increased for at least 3 minutes gt The chilled water output temperature is greater than the set point gt The number of compressors in service is equal to the thermostat value LENNOX V2 2 00 HOT THERMOSTAT To bring the temperature of the heated fluid as close as possible to the set point by adapting the number of compressors in service to the heat load in operation The thermostat THER controls the switching on and off of compressors It is determined in accordance with the following parameters TEEC lt gt Hot water input temperature C CONSREG Active instruction for output of hot water C This instruction is equal to CONSEA or CONSEB depending on the status of a logic input associated with the variable CHPCONS If CHPCONS 0 CONSREG CONSEA Ift CHPCONS 1 CONSREG CONSEB For regulation with air gradient see page 7 DELTAT Desired temperature difference between water input and output C ENCL lt gt Operating differential for a regulation stage C This variable is calculated as follows ENCL DELTAT No Of compressors Example of a machine with 4 compressors THER TEEC CONSREG With CONSREG 454 ee 40 45 3 gt 4 190 Note The thermostat is only authorised to increase by a stage if th
30. GEMENT OF UNITS IN PARALLEL 19 LENNOX V2 2 00 FREE COOLING To ensure refrigeration whilst optimising the use of free cooling thus limiting electrical consumption to a minimum amp Free cooling outline diagram TEEG TEEGFC V3VFC 4 at 1 free cooling fan TEA evaporator free cooling unit TSEG L TEEGFC Temperature of chilled water input to free cooling C TEEG lt gt Temperature of chilled water input to the evaporator C TSEG lt gt Chilled water output temperature C TEA lt gt Outside air temperature C V3VFC lt gt Three way free cooling valve Control of the three way free cooling valve V3VFC is fed if all the following conditions are satisfied c TEEGFC is greater than the regulation instruction CONSREG c TEA lt TEEGFC 2 C gt The chilled water circulation pump has been in operation for at least 30 seconds gt The three way valve has remained off for 3 minutes gt The free cooling water input sensor is not defective V3VFC is kept connected as long as all following conditions are satisfied c TEEGFC is not less than CONSREG gt TEA TEEGFC gt The pump is in operation gt The free cooling water input sensor is not defective Control of free cooling fans The number of ventilation stages required for the batteries is determined by the free cooling thermostat THERFC This parameter depends on the temperature of the water input t
31. R OR DETECTOR FAULTS nonsense 34 EXPANSION VALVE OPENING INCORRECT ee 35 LENNOX V2 2 00 LOW PRESSURE INSUFFICIENT Logical variable DBPn Incident codes KP02 n1 KPO7 icon DA No compressor on circuit n is working The liquid valve has been open for 2 minutes but low pressure remains lower than safety limits A compressor on circuit n has been operating for more than 2 minutes The liquid valve is open and the expansion valve bypass valve if applicable has been closed for 1 minute but low pressure is insufficient Reminder The units with an expansion valve bypass valve are those fitted with the all seasons option and thermostatic expansion valves compressor on circuit n has been operating for over 6 minutes all other compressors in service on the circuit have been operating for at least 2 minutes and insufficient low pressure is detected f circuit n is not in operation start up has not been authorised If it is in operation it stops immediately amp The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting Case O amp O Three automatic fault resets are allowed daily After this circuit n can only be restarted after manual resetting Case Resetting is manual Note Low pressure failure counters TOBPn are all reset to zero daily at 6 pm on condition that the maximum number of faults authorised has not been reached Trouble shooting Insufficie
32. RIG changes automatically once a week on Monday at 6 pm If the temperature sensor in the chamber is defective all the valves are opened and when the time interval TPV2V is up start up authorisation is issued to all the units LENNOX V2 2 00 REGULATION OF UNITS IN PARALLEL Installation management by chaining of unit CPU s The card responsible for general regulation is that for unit G1 card number 0 Dialogue between cards is by chaining In order to ensure that the machines do not all start up and stop simultaneously their set points are staggered The regulation instruction CONSREG for each machine is determined in accordance with the following parameters VCONSE General regulation instruction C VCONSE is the water instruction entered on unit G1 This unit transmits it to the other units PRIG Untt start up priority PRIG is processed and transmitted to the other units by the unit G1 PRIG changes automatically every Monday at 6 pm which levels out operating times between the different units DIFETG Differentail between units C DIFETG is an instruction set on each machine In the case of an installation with 4 units regulation instructions CONSREG are calculated as follows Setting instruction CONSREG PRIG 0 VCONSE VCONSE DIFETG VCONSE 2xDIFETG VCONSE 3xDIFETG VCONSE DIFETG VCONSE 2xDIFETG VCONSE 3xDIFETG VCONSE 2 VCONSE 2xDIFETG VCONSE 3xDIFETG VCONSE VCONSE DIFETG
33. The controller VDU link is serial type and uses JBUS protocol On connection the console tries to establish a dialogue with the declared controllers If after 3 attempts the console cannot communicate with a controller the latter is set to disconnected status The link problem is then displayed on the screen if the disconnected controller is selected for operator dialogue and saved in the event log The KP07 then makes regular attempts to reconnect Communication speed is 4800 baud Data is transferred in 8 bit format 1 start 8 bits odd parity 1 stop LENNOX V2 2 00 KP07 VDU VISUAL DISPLAY UNIT CONSOLE 1 1 Key allocation l 1 a SCREEN keys These are the 7 keys located around the LCD screen Jr B rip The function of these keys may vary from one screen to another and is defined on the active screen by an icon For keys 1 2 3 and 4 the icon is displayed above the key For the other 3 keys A B and C the icon is displayed to their left Each key offers the possibility e ofaccessing another screen e orentering a Boolean value in a given variable 1 b Offset keys The functions of these 5 keys are fixed O ee er Go to the next page of the same type of screen Q PAGE UP key Go back to the previous page of the same type of screen e SUMMARY key Go back to the first screen in the tree structure to d summary e LAST SCREEN key Return to the last screen selected
34. UP 0 gt The pump has been off for 1 minute or is already in operation gt There is no electrical fault on the pump DELECP1 1 gt There is no flow fault on the pump DSDEB1 0 Cette condition n est pas prise en compte si l option relance hors gel de la pompe a t choisie et la temp rature d air ext rieur est inf rieure 2 C This condition is not taken into account if the anti freeze pump start up option has been selected and the outside air temperature is less than 2 C POMPE 1 is always controlled by the CLIMATIC even if the installation pump is not electrically controlled by the refrigeration unit If the customer controls the pump he she must comply with the following procedures e Pump start up 1 minute before confirming the remote on off switch for the unit e Pump off at least 2 minutes after MAARD is switched to O F Cas The pump POMPEK is in service if gt At least one on off circuit n is ON MAARn 1 gt The remote on off machine is ON MAARD 1 gt This is not an idle period INOCCUP 0 gt Pump POMPEK has priority PRIP k 1 gt The pump has been off for 1 minute or is already in operation gt There is no electrical fault on the pump DELECPk 1 gt There is no flow fault on the pump DSDEBk 0 This condition is not taken into account if the anti freeze pump start up option has been selected and the outside air temperature is less than
35. W2 and SW3 1 2 e Card n slave external supply SW2 and SW3 2 3 card 0 supplies the link SWA This switch turns the battery on or off Caution the dater will not work if the battery is not in position on SW5 1 SW5 8 These switches are used to configure the type of analogue input CTN 0 20mA 0 5V Caution every addition of a KPO5 extension 1 to 3 causes an analogue input 1 to 3 on the main KPO1 unit to become unavailable In this case the switches for the corresponding inputs SW5 1 to SW5 3 must be set to inactive i e neither on position CTN nor on 0 20MA but simply withdrawn Bus LC Never handle the EC bus when the power is switched on LENNOX V2 2 00 CLIMATIC CARD KP01 Card diagram Ribbon cable connecting LED s dialogue presence the two cards COM B and COM C ao ai Optional KP10 card 18Vdc supply AAT fuse Configuration of analogue input type Co we OO N es j ilf Card n 1 B al L e Cas E 12Vac PC 0 A supply 18 ee N b 080 Eg ED HD RF CB CG I 327 Link PC GTC or VDU console COM Digital console link COM Ria T2 RIS R20 le R3 UI 0000 eil of gofa N cs RIZ TI zii SR 22 HR C17 us OTY uz LK ng 12VAC V RRI RR4 I C13 L RLB BIE E F N nalogue CH BE b Fl F us oe Cy F connector CE ALB Le E ips Ars Gav S RRIB RL5 o B uL coef N mi ma DA n REE xi PT30 v n
36. ar 1AA LED presence C dialogue LED power on Key J1 to J8 3 point removable pin connector pitch 5 08 for double throw contacts for relays RL1 to RL8 J9 J10 RJ45 connector for IC Bus LD1 LED presence of power from KP01 LD2 LED presence of EC dialogue SW1 SW2 Switches for configuration of the card address The position of jumpers for each configuration is marked on the card PT1 VRF PT2 Earth PT3 Vcc 5V LENNOX V2 2 00 EXTENSION ALIMENTATION 18VDC KP10 Presentation The KP10 extension is presented in the form of a small plug in card positioned on the main KPO1 unit and designed to supply detectors type 0 20mA Precautions When installing the module take care to comply with the circuit orientation as printed on the main KPO1 unit O E LT m i vsb d 1051 N CT Bag an E OCH 2I N jo pir og Ar Med IN MY 1X3 MIV C IMS 18 I un OH zn 98 13 el cnt ua RER zx 813 cl In EZ D AG PE W 1 ABI 32 an up Cac LIL EIT ag Ws C EMS H 0 0 c 1 0 0 0 De Be R I QUU Type P cti ODE DE essen 000 8 280 mA 5 Ze CBG CHE amp E ANA 3 SWS 225082 M e z a n n n CIs AC E rt D ma E O TUN r D kd OS di LOD DSE 5807780185 NS 8 Location on KPO1 card connector CLIMATIC WI RI WE SI RI RI SI ECC K OT E D 3 i E TU e SA EN KUSH ARTE AEN 3 DED
37. ce by the nut provided for this purpose Since there are joints between the front face and console base as well as between the base and the door of the electrical cabinet two bonding straps are required between the latter to ensure a good electrical contact Replacement of a VDU console Procedure to be followed amp Turn off the supply to the card and change the card Retrieve the EPROM from the old card and the fit it to the new one see drawing below Reconnect all connections to the KPO7 referring to the wiring diagram EPROM positioning Keying band LENNOX V2 2 00 LENNUX V2 2 00 GREAT BRITAIN LENNOX INDUSTRIES LTD IRELAND tel 44 1604 599400 fax 44 1604 594200 e mail marketing lennoxind com BELGIUM LENNOX BENELUX N V S A t l 32 3 633 30 45 fax 32 3 633 00 89 e mail infoalennoxbenelux com CZECH REPUBLIC JANKA RADOTIN AS t l 420 2 510 88 111 fax 420 2 579 10 393 e mail janka janka cz FRANCE LENNOX FRANCE t l 33 160 17 88 88 fax 33 1 60 17 86 58 e mail accueil amp lennoxfrance com GERMANY LENNOX RUHAAK GmbH t l 49 69 42 09790 fax 49 69 42 53 65 e mail info lennoxdeutchland com NETHERLANDS LENNOX BENELUX B V t l 31 33 2471 800 fax 31 33 2459 220 e mail info lennoxbenelux com POLAND LENNOX POLSKA SP z o o t l 48
38. e contrast e Press successively on key B to reduce contrast e Key C is used to restore the contrastsetting by default LENNOX V2 2 00 KP07 VDU CONSOLE V GENERAL TREE STRUCTURE OF SCREENS eg L Access to operating states of the circuits machine and On Off switches for circuits Password Operating state fi Chilled water uw pumps m Access to settings Refrigeration On Off switches circuit of chilled water Access to Access to circuit machines variables variables ige ult log irc temperature setting Operating state Hot water pumps On Off switches Hot water pumps Parameters for regulation with gradient Fault counters Options For units with more than one refrigeration circuit branches C2 C3 and C4 corresponding to operating states for circuits 2 3 and 4 respectively are active LENNOX V2 2 00 CONSOLE GRAPHIQUE KP07 VI VI CONTENT OF SCREENS Ill 1 Summary Date and time Presence of a Number of controller general alarm on in communication yes the machine with display unit Temperature of chilled Temperature of chilled water input or hot water water output or hot water Water instruction for a PAC for a PAC The water instruction is a variable which can be modified in modification mode For a liquid cooler the value displayed or entered is read or copied respectively into the act
39. e evaporator for over 2 seconds Immediate machine halt The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting The machine restarts automatically 20 seconds after the flow of chilled water is restored Trouble shooting Wiring fault on pump control Check pump connection Wiring fault on flow controller Check flow controller connection Water filter clogged Clean water filter Setting fault on flow controller Adjust flow controller LENNOX V2 2 00 INSUFFICIENT FLOW OF HOT WATER Logical variable DFSEC Incident codes KP02 4 KP07 icon ez The flow switch FSC detects insufficient flow insufficient in the condenser for over 3 seconds Immediate machine halt amp The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting The machine restarts automatically 20 seconds after the flow of hot water is restored Trouble shooting Wiring fault on control pump Check pump connection Wiring fault on flow controller Check flow controller connection Water filter clogged Clean water filter Setting fault on flow controller Adjust flow controller LENNOX V2 2 00 ABSENCE OF 230V SUPPLY WITH BACKUP 17 A Logical variable DPT230V Incident codes KP02 7 KPO7 icon ED The supply presence voltage relay is tripped PT230V 0 The compressor casing resistors and the anti freeze resistors on the hydraul
40. e following conditions are satisfied gt THER has not increased for at least 3 minutes gt The hot water output temperature is lower than the set point gt The number of compressors in service is equal to the thermostat value LENNOX V2 2 00 e COLD REGULATION WITH GRADIENT To adapt the regulation set point to the outside air temperature for improved counterbalancing of solar heat pick up by the premises to be air conditioned Le calcul du point de consigne de r gulation CONSREG se fait en fonction des parametres suivants TEA lt gt Outside air temperature C CONSA lt gt 1st reference air temperature selected C CONSAM lt gt 2nd reference air temperature selected C TEGI lt gt Minimum chilled water temperature instruction C CONSEG lt gt Required water instruction for air instruction CONSA C CONSEG must be lower than 15 C CONSEI lt gt Required water instruction for air instruction CONSAM C CONSEI must be greater than TEGI 2 C PENTEF lt gt Regulation gradient 96 The gradient is calculated using the following equation PENTEF 100 x CONSEI CONSEG CONSAM CONSA CONSREG CONSEG E n PENTEF CONSEI l mit S TEGI 2 O C Donee Ser CONSA CONSAM TEA CONSREG CONSEG PENTEF x TEA CONSA 100 Example of regulation With CONSA 20 C CONSEG 10 CONSAM 35 CONSEI 6 gt PENTEF 26 7 Lm pw
41. e of the CPU cards connected to it Regular attempts to restore communication The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting The fault is reset automatically once dialogue is restored Trouble shooting Wiring fault on link between the KP07 and the CPU Check the connection of the link between the cards Power failure on one of the cards Check electrical supply to cards LENNOX V2 2 00 KP02 DIGITAL CONSOLE GENERAL PRESENTATION The KP02 console is a man machine interface consisting of a 6 digit display 6 indicator lights and 5 keys General alarm flashing red Spare indicators On indicator green INCREMENTATION KEY Digital screen DECREMENTATION KEY Variables mode indicator INSTRUCTIONS mode indicator MODE VALUE KEY KEY Address KEY This console is principally used to read and or modify the values of variables or instructions for the CPU card to which it is connected Dialogue with the CPU is initiated by the KP02 If after 3 attempts communication is not established a message indicating the communication problem is displayed see il 5 c The console will then make regular attempts to reconnect Data transmission speed is 1200 baud in 8 bit format 1 start 8 bits odd parity 1 stop Il DISPLAY FORMATS 11 1 Time lt gt 12 hours and 59 minutes When the console keypad is inactive for 5 minutes the
42. e various instructions Access to water temperature instructions Access to control parameters for condenser fan Access to idle timers day night Access to parameters for regulation with gradient on air temperature IV 2 Screen headings Temperature curves for water output from the machine Access to operating states for refrigeration circuits pumps and machine LENNUX V2 2 00 Access to TOR outputs and other variables associated with the selected refrigeration circuit KP07 VDU CONSOLE Operating state of refrigeration circuit no 1 Operating state of refrigeration circuit no 2 Operating state of refrigeration circuit no 3 Operating state of refrigeration circuit no 4 Operating state of chilled water pumps AN Operating state of hot water pumps Operating state of machine Fault log Access to the different tables of variables AE Analogue inputs other than those shown on refrigeration diagrams Logic inputs TOR outputs TOR outputs and other variables associated with selected refrigeration circuit Miscellaneous variables Fault counters On off controls for refrigeration circuits On off controls for chilled water pumps On off controls for hot water pumps Password entry for access to modifiable instructions Access to the various instructions Water temperature instructions Control parameters for condenser fan LENNOX V
43. essor operating at 75 of its total capacity Compressor operating at 50 of its total capacity Compressor operating at 25 of its total capacity Compressor stopped representation on refrigeration diagram Compressor stopped Compressor stopped for regulation Compressor stopped in anti short cycle Compressor stopped by idle timers Compressor stopped by non operation of pump ERE EE 19 e EE LENNUX V2 2 00 CONSOLE GRAPHIQUE KP07 Compressor stopped by refrigeration circuit on off Compressor stopped by remote on off command to machine Pump in operation Pump stopped IV 5 Faults On the unit presence of a machine circuit compressor or miscellaneous fault IV 5 a General machine faults Chilled water temperature outside authorised range Hot water temperature outside authorised range Chilled water flow insufficient Hot water flow insufficient Absence of power on 230 V electrical supply to the machine Incorrect connection of 3 phases of general electrical supply to the machine IV 5 b Faults on the refrigeration circuit Low pressure insufficient Evaporator freezing Superheat insufficient Vacuum draught on circuit not achieved LENNUX V2 2 00 KP07 VDU CONSOLE A gi Temperature sensors or pressure
44. etector Note All these sensors and detectors are not necessarily present on the same machine Immediate halt of circuit n amp The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting Circuit n can only be restarted after manual resetting and correct reading of all detectors and sensors Trouble shooting Sensor or detector fault Wiring fault or disconnection of a sensor or detector Replace the element Check sensor and detector connections LENNOX V2 2 00 EXPANSION VALVE OPENING INCORRECT A LA Logical variable DCDETn Incident codes KP02 n7 KP07 icon Ri This fault is only processed on units equipped with electric expansion valves DANFOSS TQ type No compressor on circuit n is working A compressor start up command has been issued and the expansion valve is in the pre heat phase After 6 minutes the expansion valve opening value calculated for start up of the compressor has still not been reached Circuit n start up is not authorised amp The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting Fault resetting is manual Trouble shooting Expansion valve sensor fault Replace expansion valve Wiring fault or disconnection of the sensor Check sensor connection 24V supply fault on expansion valve Check supply The green LED on the static relay is lit up but the Check the static relay and the expansio
45. harge temperature on compressor no 2 if applicable Condensation pressure Condensation 16868 Discharge temperature p 42 56 n n temperature on 7 8 8 28 3 n compressor no 1 m LI I lt gt e nm o Ambient air H O 28 67 n R temperature n Air intake 3 5 Le la temperature 5 6b 2 Evaporation 7 8 H 4 18 nr Evaporation temperature pressure al Temperature of chilled water output Operating states of circuit Temperaiure of chilled compressors water Input P II ab Water cooled condensers Hot water output Hot water input temperature EEE 516646 temperature P Sr 37 4 Discharge Condensation 44 5 NA t4 J E temperature on 4 16 3b temperature compressor 42 517 IN 28 37 Se CU e uy Operating state of Evaporation H o compressor temperature 3 5 9 27 A JA 5 66 7 8 b 18 UC Air intake Chilled water v temperature temperature Evaporation Chilled water input pressure temperature LENNOX V2 2 00 KP07 VDU CONSOLE 11 6 Tables of variables associated with refrigeration circuits This screen gives access to the values of logic inputs fault counters TOR output and other variables describing the selected refrigeration circuit Each variable is identified by its mnemonic II Ga Logic inputs S ELEC 1 PHP21 PINT21 POILZI This screen shows the state of all the logic inputs associated with the circuit and its compressors 11 6 6 Fault
46. he values of variables 2 INSTRUCTIONS mode is used to modify setting instructions 3 READ DATER mode is used to read the time and date 4 SET DATER mode is used modify the time and date The user selects the required mode by pressing the M key as many times as necessary Mode Indicator V Indicator C VARIABLES On off INSTRUCTIONS Off On READ DATER Off Off SET DATER On on LENNOX V2 2 00 KP02 DIGITAL CONSOLE 111 1 VARIABLES mode Pressing on A displays the address of the variable currently being read The address is incremented by pressing keys A and simultaneously The address is incremented slowly if is pressed briefly or faster if it is pressed continuously The address is decremented in a similar manner using keys A and When the required address is selected pressing key V displays the value of the corresponding variable Variables are updated cyclically every n seconds Note When an address is selected if the user does not enter a value request this takes place automatically after 1 minute III 2 INSTRUCTIONS mode The address of the instruction to be modified is selected as for VARIABLES mode see III 1 The value of the instruction is increased by pressing keys V and simultaneously The value increases slowly if is pressed briefly and faster if it is pressed continuously Slow incrementation is by 0 1 for temperatures and pressures and 1 for other values Fast incrementation
47. ic circuit are no longer fed Immediate machine halt amp The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting The machine restarts automatically 20 seconds after the 230 V supply has been restored Trouble shooting Wiring fault on 230 V supply V rifier les connexions et la tension de l alimentation 230 V qui arrive sur la machine Wiring fault on voltage presence relay V rifier le c blage du relais de pr sence tension LENNOX V2 2 00 INCORRECT SEQUENCE OF PHASES Logical variable DPHASE Incident codes KP02 9 KPO7 icon 153 The phase controller is tripped PHASE 0 It detects an inversion or a bad phase coupling Immediate machine halt amp The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting The machine can only be restarted after manual resetting and the correct re establishment of phases Trouble shooting Fault appears the first time the machine is switched Reverse two of the three phases upstream of the unit on Check the presence of the three phases and voltage Absence of a supply phase values between phases Check wiring on phase presence contact Wiring fault on phase presence contact LENNOX V2 2 00 CIRCUITS FAULTS CONTENTS Page LOW PRESSURE INSUFFICIENT eene 30 EVAPORATOR FREEZING 2 n aa a a 31 INSUFFICIENT SUPERHEATING s 32 VACUUM SUCCION FAILURE onnaa nnas 33 SENSO
48. ides via a digital analogue converter analogue output 0 10V resolution 39mV It is possible to connect up to 4 KP04 extensions to the same CPU which offers a maximum capacity of 2 4 x 1 2 6 analogue outputs The card is calibrated by adjusting the potentiometer P1 S ANA i KPD A a e saf a a CG C21 c17 si RR2 4 4 1502 C71 C70 C16 Addressing configuration F3 ISO CC Cr 100mAT E Eleng O LA tuses Calibration N potentiometer Analogue 12Vac output supply LED presence of lC connection LED power on Key J1 J2 RJ45 connectors of the Bus IC J3 2 point removable pin connector pitch 5 08 for external 12Vac supply J4 JAS 2 point removable pin connector pitch 3 81 for analogue output 0 10V SW1 SW2 Switches for configuration of the card address The position of jumpers for each configuration is marked on the card LD1 LED presence of power LD2 LED presence of dialogue P1 Potentiometer for card calibration adjustment of amplitude PT1 Earth PT2 VRF PT3 12V isolated PT4 OV isolated PT5 5V isolated PT6 Vcc 5V PTZ 12V rectified and filtered before adjustment LENNOX V2 2 00 EXTENSION 8 ENTREES ANALOGIQUES KP05 The KP05 card is used for the acquisition of 8 analogue inputs These inputs may connect either a CTN temperature sensor 10KQ at 25 C or a conventional 0 20mA detector via the 18Vdc supply The type of element connected is configured u
49. ircuit or to keep it switched off using modification mode LENNOX V2 2 00 CONSOLE GRAPHIQUE KP07 After pressing key O the screen shows 111 12 Instructions Access to the different setting instructions is protected by a password a modifiable variable consisting of 5 figures This is entered via modification mode Pressing key A displays the screen below enabling the user to access the type of instruction he she wishes to adjust LENNOX V2 2 00 KP07 VDU CONSOLE All the instructions which follow can be adjusted via the modification mode Ill 12 a Water temperature instructions The screen shown below corresponds to the case of a liquid cooler There is a similar screen for heat pumps Temperature difference Chilled water Chilled water on chilled water setting A setting B T input T output Minimum chilled water temperature Inimum evaporation temperature 111 12 b Control parameters for condenser ventilation Timing for increasing or Upper pressure limit decreasing by one for increasing ventilation stage ventilation stages Lower pressure limit for decreasing ventilation stages LENNOX V2 2 00 KP07 VDU CONSOLE 111 12 c Idle time clocks End day Wweekly idle period End time Daily idle period Start time Start day Daily idle period Weekly idle period Day of the week Date and hour variables can be changed as any instruction showed on th
50. is screen 111 12 d Parameters for regulation with gradient on air temperature option The screen below corresponds to the case of a liquid cooler Calculated chilled water setting Desired water setting for the read only variable 1st air temperature selected CONSA M O C CONSREG Ja 11 Iconsen Desired water setting for the 2 air temperature selected 6 conser 77 CONSAM i Ambient air SCH temperature Minimum chilled water temperature 1 reference air 279 reference air temperature temperature LENNOX V2 2 00 KP07 VDU CONSOLE VII GLOSSARY OF ICONS Icons are classed in 6 categories Keys Screen headings Identification of components Operating states Faults On off settings and instructions oo MI IV 1 Keys Access to the temperature curve for water output from machine Access to operating states for refrigeration circuits pumps and machine Access to operating state for refrigeration circuit no 1 no faults are reported on the circuit Access to operating state for refrigeration circuit no 1 there is a fault on the circuit Access to operating state for refrigeration circuit no 2 there is a fault on the circuit Access to operating state for refrigeration circuit no 3 there is a fault on the circuit Access to operating state for refrigeration circuit no 4 there is a fault on the circuit Access to operating state for chilled water pumps no faults are reported on
51. itch is closed without POMPEK having the operational command The machine restarts automatically 20 seconds after the flow is restored The unit has one pump C2POMPE 0 The machine can only be restarted after a manual reset The unit has two pumps C2POMPE 1 If the flow is restored within 20 seconds following the start up command issued to the 2nd pump the machine restarts automatically Otherwise the unit can only be restarted after a manual reset Trouble shooting Wiring fault on the control pump Check the pump connection Wiring fault on the flow controller Check the connection on the flow controller Water filter clogged Clean the water filter Flow controller wrongly set Adjust the flow controller setting LENNOX V2 2 00 FAN CIRCUIT BREAKERS TRIPPED A Logical variable DELECV Incident codes KP02 90 KPO7 icon d One or more thermomagnetic circuit breakers protecting the air condenser fans are tripped ELECV 0 amp The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting The fault is reset automatically once all the fan circuit breakers are reset Trouble shooting Bad connection or connections too tight Check connections Circuit breakers wrongly set oet protections according to the rated current for fans LENNOX V2 2 00 PUMP CIRCUIT BREAKER TRIPPED 7 91 pompe 1 KPO7 icon Logical variable DELECPK Incident
52. ive instruction A or B depending on the value of the variable CHPCONS Where several KP01 cards are connected to the same KP07 the controller number can also be modified On all other screens the controller number can only be read Date and time data can also be changed Every 24 hrs the console automatically reads the date and time on the lowest JBUS address controller and sends this information to any other controllers connected to it UL 2 Water output temperature curve The monitoring frequency for the temperature of chilled water output or hot water for a PAC is 10 minutes over a complete 24 hour cycle The console therefore memorises the last 144 values of the monitored variable LENNOX V2 2 00 KP07 VDU CONSOLE Ill 3 Access to the different operating states Presence of a general alarm on Number of controller the machine in communication with display unit This screen gives access to the operating states of the refrigeration circuits pumps and machine 11 4 Operating states of refrigeration circuits Operating states of circuit compressors displayed on off at full power on at reduced setting Nature of any fault present on the compressor Number of operating gt hours on compressors Cause of compressor halt other than a fault e g anti short cycle LENNOX V2 2 00 KP07 VDU CONSOLE 1 5 Refrigeration diagrams Ill 5 a Groupes condensation par air Disc
53. led by Proportional Integral Derivative logic The ideal theoretical opening RDETAn of the expansion valve on circuit n is determined and compared with the actual opening Depending on the variation observed an opening or closing order is issued to the expansion valve Calculation of RDETAn Theopening to be achieved RDETAn depends on the following parameters SURCHD Superheat instruction C TASPn TBPn Superheat measured on circuit n C RDETn lt gt Opening measured on expansion valve C l e A et the difference at time t between the measured superheat and the instruction Ae TASPn TBPn SURCHD Integral action p mem t REDTAn RDETn Kp Ae Ki Y Ae Kd Ae Ae t ni t nd Proportional action Order issued to expansion valve j 3 cas se pr sentent gt If RDETAn gt RDETn the expansion valve must be heated DETn 1 to open it to the desired opening gt If RDETAn lt RDETn the expansion valve is not heated DETn 0 so that it can close gt If RDETAn RDETn the expansion valve is maintained at its current opening value by alternating start and stop heating operations successively Note Before starting up the first compressor on the circuit the expansion valve is preheated to an opening value calculated on the basis of the low pressure prevailing in the circuit This procedure avoids any risk of slugging at compressor start up LENNOX V2 2 00 CONTROL OF
54. n valve expansion valve is not heating controller card LENNOX V2 2 00 COMPRESSOR FAULTS CONTENTS Page COMPRESSOR CUT OUT SWITCH TRIPPED 222222 aaa aa a 37 OIL PRESSURE INSUFFICIENT oonan aan aaaaaa 38 EXCESS HICH PRESSURE uuum pos nenten 39 DISCHARGE TEMPERATURE TOO HIGH 40 INTERNAL PROTECTION TRIPPED eee 41 LENNOX V2 2 00 COMPRESSOR CUT OUT SWITCH TRIPPED Ju VA Logical variable DELECmn Incident codes KP02 mn1 KPO7 icon The thermomagnetic cut out switch on compressor mn is tripped ELECmn 0 Immediate halt of compressor mn amp The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting Compressor mn can only be restarted after engagement of the cut out switch and a manual reset Trouble shooting Faulty connection or connections too tight Check connections Cut out switch wrongly set oet the protection in accordance with the rated current for the compressor LENNOX V2 2 00 OIL PRESSURE INSUFFICIENT Logical variable DHUILEmn Incident codes KP02 mn2 KPO7 icon um TA This fault only applies to semi hermetic reciprocating compressors The total time during which the oil pressostat on compressor mn POlILmn remains tripped exceeds 90 seconds The oil pressure is then insufficient for proper lubrication of the compressor Note The counter for periods of low oil pressure is reset to zero if the oil pressostat remains above it
55. nt circuit load Complete the load Malfunction of the liquid solenoid valve Check solenoid valve operation Malfunction of expansion valve Check expansion valve operation Dehydrator clogged Change dehydrator LENNOX V2 2 00 EVAPORATOR FREEZING d A Logical variable DGELn Incident codes KP02 n2 KPO7 icon se ji This fault is only processed on machines cooling water without solution which does not freeze at 0 C glycol or brine Case O Tubular exchangers A compressor m on circuit n has been operating for at least 1 minute and the following 2 conditions remain satisfied for over 2 minutes TBPn lt TBPI and TASPn lt 5 C Plate exchangers A compressor m on circuit n has been operating for at least 2 minutes and TBPn lt TBPI for over 5 seconds for R407C units 30 seconds for R22 units TBPn Evaporation temperature circuit n C TBPI lt gt Minimum evaporation temperature C The minimum and default value of instruction TBPI is defined as follows Tubular evaporators gt 4 C R407C plate evaporators gt 1 C stream saturation R22 plate evaporators gt 1 7 C TASPn Suction temperature for circuit n C Immediate halt of circuit n amp The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting Cas For the first fault resetting is automatic after of 30 minutes if the evaporation temperature has returned to over 1 C After
56. o the evaporator TEEG and on the regulation instruction LENNOX V2 2 00 FREE COOLING CENT D TEEG TEEGFC CONS REG 0 5 oC PR Ee EEE Ee E CONS REG RET n P S Ua NT TEEGFC CONS REG 0 5 SC m GE _ II eem a temps THERFC 0 OF 1 2 gt 10 The thermostat is incremented by one stage if TEEG remains greater than CONSREG 0 5 for over 3 minutes As long as this condition on TEEG is satisfied THERFC continues to be incremented by one stage every 3 minutes If TEEG remains lower than CONSREG 0 5 C the free cooling thermostat is reduced by one stage every 3 minutes When TEEGFC falls below the set point all ventilation stages are halted If the compressor regulation thermostat THER requires at least one stage of regulation whilst free cooling is in service the free cooling thermostat is forced to its maximum The free cooling fan n VENTFCn operates if THERFC zm and V3VFC is in service Authorisation of compressor start up Authorisation of compressor start up in parallel with free cooling operation is defined by the variable AUTOCP which is dependent on the following parameters V3VFC Three way free cooling valve THERFC Free cooling regulation thermostat THER Compressor regulation thermostat AUTOCP is set to 1 if THERFC is at its maximum and TEEG is greater than CONSREG for over 3 minutes or _ V3VFC is not fed AUTOCP is kept at
57. order for compressors This order is determined by a FIFO first in first out rule This function incorporates the automatic instantaneous recording of a priority compressor which has become unavailable Compressor start up and sto The compressor COMPmn starts up if all the following conditions are satisfied gt The water circulation pump received the order to operate at least 1 minute earlier gt The on off switch for circuit n is ON MAARn 1 gt The machine is available DISPOM 1 gt Circuit n is available DISPOCn 1 gt Compressor mn is available DISPOmn 1 gt The regulation thermostat THER is greater than the number of compressors in service gt COMPmn is the compressor defined by the FIFO rule as the next one to start up gt COMPmn is not in anti short cycle ACCmn 1 The compressor COMPmn stops if at least one of the following conditions is satisfied gt The remote on off switch for the machine is OFF MAARD 0 gt The on off switch for circuit n is OFF MAARn 0 gt The machine is unavailable DISPOM 0 gt Circuit n is unavailable DISPOCn 0 gt Compressor mn is unavailable DISPOmn 0 gt The regulation thermostat THER is less than the number of compressors in service and COMPmn is the compressor defined by the FIFO rule as the next one to be stopped Ten o 1 2 a 4 ajaja 2 1 z2 ajajajajajajijo Last one started up Jo suus Lastonestopped
58. s triggering point for over 3 minutes Immediate halt of compressor mn amp The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting The first fault is reset automatically After this compressor mn can only be restarted after a manual reset Note Counters for oil pressure failures TOOILmn are all reset to zero daily at 6 pm on condition that the maximum number of authorised faults has not been reached Trouble shooting Lack of oil in the compressor Check oil level Oil pump fault Change oil pump Oil pressostat wrongly set Check setting of oil pressostat Wiring fault on oil pressostat Check wiring on oil pressostat LENNOX V2 2 00 EXCESS HIGH TEMPERATURE Logical variable DHPmn Incident codes KP02 mn5 KPO7 icon We The high pressure safety cut out on compressor mn PHPmn has tripped Immediate halt of compressor mn amp The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting The first 2 faults are reset automatically After this the compressor mn can only be started after a manual reset Note Counters for high pressure failures TOHPmn are all reset to zero daily at 6 pm on condition that the maximum number of authorised faults has not been reached Trouble shooting Condenser clogged Clean condenser Fault on parameter settings for regulation of Check parameter settings condensation
59. shooting Evaporation suction or chilled water intake sensor Replace the sensor fault Wiring fault or disconnection of one of these sensors Check sensor connections LENNOX V2 2 00 VACUUM SUCTION FAILURE A 1 Logical variable DPUMPDn Incident codes KP02 n5 KPO7 icon For 2 minutes a compressor on circuit n is in operation and the liquid solenoid is not connected but low pressure is still below minimum Immediate halt of circuit n amp The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting The first 2 faults are automatically reset after 2 minutes After this circuit n can only be restarted after a manual reset Note Counters of pump down failures TOPUMPDn are all reset to zero daily at 6 pm on condition that the maximum number of authorised faults has not been reached Trouble shooting Liquid solenoid blocked open by foreign matter Change the solenoid valve LENNOX V2 2 00 SENSOR OR DETECTOR FAULTS ol A Logical variable DSONDEn Incident codes KP02 n6 KP07 icon PS One or more temperature sensors or pressure detectors installed on circuit n are either in short circuit broken or disconnected Condition for occurrence of fault TASPn lt 40 C 1000 U x RDETn x 50U BPn x 0 5 bars HPn x 0 5 bars Sensor or detector involved Suction temperature sensor Internal sensor on electronic expansion Low pressure detector High pressure d
60. sing switch SW1 It is possible to connect up to 3 KP05 extensions to the same CPU card Every addition of a KP05 means that a KP01 analogue input becomes unavailable The complete configuration therefore allows a maximum number of 5 3 x 8 29 inputs Note Inputs 5 to 8 are not equipped to receive a 0 20mA signal In fact resistors R10 to R14 2490 0 1 are not fitted in the original configuration Addressing configuration BE ANA KP 5 Analogique RI RI8 Ribbon cable connector connecting extension cards to main card KP01 8 analogue inputs common to all inputs Led 5V power 18Vdc on supply Key J1 JEA 12 point removable pin connector pitch 3 81 for analogue inputs J2 14 point HE10 connector for analogue bus J3 2 point removable pin connector pitch 3 81 for the two outputs 18Vcontinuous LD1 LED presence of power SW1 to SW8 Jumpers for the configuration of 0 20mA inputs or CTN The position of jumpers depending on the type of input is marked on the card SW9 Switches for configuration of the card address LENNOX V2 2 00 EXTENSION 8 RELAYS KP08 The KP08 card carries 8 outputs on changeover relays 16A 250Vac It is possible to connect up to 4 KP08 cards to the same CPU offering a maximum number of 8 4 x 8 40 discrete outputs Addressing configuration PT3 D jaa a c5 ca rn D C cs inga I X WO a UC Ria O s dem M 8 outputs changeover relays PRN V
61. t 25 C The machine is not stopped and is regulated to its own water instruction amp The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting Once TCONS gt 25 C the fault is reset automatically The machine can once again be regulated to the remote instruction Trouble shooting Wiring fault on 4 20mA signal Check wiring see wiring diagram LENNOX V2 2 00 TEMPERATURE OF FREE COOLING OUTSIDE RANGE AFL EA Incident codes KP02 97 KP07 icon A The inlet chilled water temperature which is measured by the sensor located on the collector forward free cooling coils is outside authorized range TEEGFC 15 C ou TEEGFC gt 65 C Immediate halt of free cooling free cooling fans stop and the 3 way valve completely by pass the coils amp The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting Automatic fault resetting as soon as inlet chilled water temperature is inside the normal operation conditions 10 C lt TEEGFC lt 60 C Trouble shooting Sensor fault on free cooling water inlet Replace sensor Wiring fault or disconnection of sensor Check sensor connection LENNOX V2 2 00 DIALOGUE BETWEEN CPU AND KP07 INTERRUPTED A Logical variable Incident codes KP02 KPO07 icon E After 3 attempts the KPO7 VDU has not succeeded in establishing a dialogue with at least on
62. tes of contacts which have an effect on the overall operation of the machine e g remote on off circuit breakers for pumps choice of setting instruction etc LENNOX V2 2 00 KP07 VDU CONSOLE Ill 9 c TOR outputs This screen displays the state of the actuators which control machine components other than those already described in operating states for circuits and pumps 111 9 d Fault counters Faults and fault counters associated with specific options appear on this screen IL Oe other variables mn A INOCCUP OFF INOCDAY OFF IMOCHK OFF This screen gives the values of calculated variables which apply to the entire machine e g priority status for pump operation pump operation idle functions etc LENNOX V2 2 00 CONSOLE GRAPHIQUE KP07 111 10 Fault log The event log can be used depending on the configuration chosen in the console application program to record e either the last 24 fault occurrences e or the last 24 fault occurrences and clearances The log displayed relates only to the controller which is currently in communication with the display unit If other KPO1 cards are linked to this display unit their respective event logs can be accessed by modification of the controller number in the summary screen see III 1 11 11 On off switches on refrigeration circuits This screen can be used to configure authorisation to switch on each refrigeration c
63. time is automatically displayed LENNOX V2 2 00 CONSOLE NUMERIQUE KP02 11 2 Date 11 3 Address of a varialbe 11 4 Value of a variable LA a Logical values 0 amp OFF Il 4 b Temperatures The temperatures are displayed in C to nearest 0 1 C e 21 6 C 105 8 Ac Pressures The pressures are shown in bar to nearest 0 1 bar 18 3 bars LA d Other analogue values Values without signs Signed values II Ae Fault mode Discharge temperature too high on compressor 1 on circuit 2 lt gt LENNOX V2 2 00 KP02 DIGITAL CONSOLE When a fault occurs on the machine the red led general alarm flashes If the user whishes to know the nature of the fault he can consult the variable breakdown representative of the code breakdown 11 5 Specific displays 11 5 a Application release When the console is switched on the computer application release number is displayed release 1 0 example 1 5 b Test de l afficheur Correct operation of the VDU can only be tested at the time the console is switched on by pressing on the 3 keys A M and simultaneously Correct operation of the VDU is shown as follows 1 5 c KP02 CPU communication fault An absence of dialogue between the KP02 console and the CPU card is signalled by the permanent following message communication problem Il OPERATING MODES 4 modes are available 1 VARIABLES mode is used to read t
64. tive chilled water setting measured variable CONSREG First hot water setting CONSEA oecond hot water setting CONSEB Active hot water setting measured variable CONSREG Desired temperature difference as an absolute value between processed water input and output DELTAT Minimum chilled water temperature TEGI Maximum hot water temperature TECS Minimum evaporation temperature TBPI LENNOX V2 2 00 ELECTRONIC CARD DATA CONTENTS Page CUMATIC CARD PN 79 EXTENSION 16 LOGIC INPUTS KPO3 ee 83 EXTENSION ANALOGUE OUTPUT KP04 oiiiiineeeeeeeennnnnnennnnn 84 EXTENSION 8 ANALOGUE INPUTS KPOB ne 85 EXTENSION 8 RELAYS PL Luse 86 EXTENSION 18VDC SUPPLY kbin 87 FEMALE CARD ANALOGUE OUTPUT KPT 89 DIGITAL CONSOLE KO 90 VDUCONSOEE PV 91 LENNOX V2 2 00 CLIMATIC CARD KP01 General presentation The CLIMATIC consists of a main KPO1 microcontroller card with 8 analogue inputs 8 logic inputs and 8 logic outputs in its standard version Two analogue outputs and a 18Vdc supply are also available as an option amp Logic inputs are linked to hard contacts Analogue inputs are linked to temperature or pressure detectors Outputs are connected to control contactors compressors fans etc Modules can be added to the system using extension cards amp 3 extensions 16 logic inputs KP03 card amp 4 extensions analogue output KP04 card 3 extensions
65. w HPBAS THVn continues to be decreased by 1 every TEMPOV time interval Note When stopping a ventilation stage relates to a 2 speed fan switching from fast to slow speed is delayed by 5 seconds LENNOX V2 2 00 SPECIFIC VALVES FOR SCREW COMPRESSORS Liquid injection valve using intermediate suction To reduce the compressor discharge temperature thereby improving cooling on the compressor motor The liquid injection valve INJLmn is open if the compressor COMPmn is in operation and the discharge temperature TREFmn is greater than 100 C or the economy valve ECOmn is opened INJLmn is kept open as long as the compressor COMPmn is in operation and the discharge temperature TREFmn is greater than 90 C or the economy valve ECOmn is opened Economy valve To increase refrigerating capacity by increased sub cooling of the liquid refrigerant output from the condenser The economy valve ECOmn is open if compressor COMPmn is in operation and at full capacity for 2 minutes and the discharge temperature TREFmn is greater than and high pressure in circuit n PTHPn is greater than P1 ECOmn is kept open as long as compressor COMPmn is in operation and at full capacity and the discharge temperature TREFmn is greater than 2 C and high pressure in circuit n PTHPn is greater than P2 LENNOX V2 2 00 OPTIONS CONTENTS Page PEE COOLING m 16 REA ERE COVER 18 MANA
66. y a stage if it has not increased for a time defined using instructions TPTHERM THERG can only be decremented by a stage if it has not decreased for a time defined using instructions TPTHERD LI as sr KG pow With CONSEG 6 C a TBAL EN NUM TBAL Control of isolation valves for evaporators on each unit If the regulation thermostat THERG requests operation of unit Gn valve V2Vn is sent a command to open Operation of units The start up of the next priority unit Gn is authorised if the opening command has been issued to valve V2Vn for at least TPV2V variable time The hard contact representing this authorisation to switch a unit on associated variable MAARGn must be wired to the remote on off input connection for the machine Each unit controls its own compressors and pump in accordance with its own set point see cold thermostat chapter page 5 For better general regulation it is recommended to set unit instructions to the same value as CONSEG Fault management and automatic unit lo Each unit sends its availability state to the general regulation card Depending on the overall availability of all units an optimal priority order PRIG is defined units with no faults are put at the top of the priority list PRIG Ordure of unit start up 0 G1 G2 G3 G4 G4 G1 G2 G3 G3 G4 G1 G 2 G2 G3 G4 G1 In order to level out operating times for the different units and if they are all available P

CLIMATIC™ USER MANUAL

Contents

Download Pdf Manuals

Related Search

Related Contents

CLIMATIC&trade; USER MANUAL

Contents

Download Pdf Manuals

Related Search

Related Contents

CLIMATIC™ USER MANUAL