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CLIMATIC™ USER MANUAL

1. gt ei gt E KP07 VDU CONSOLE 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 Electronic starter fault 4 5 2 Faults on the refrigeration circuit Se ZS Ke ee Be SP a gt BR Low pressure insufficient Evaporator freezing Superheat insufficient Vacuum draught on circuit not achieved Temperature sensors or pressure detectors faulty Incorrect opening of expansion valve 4 5 3 Compressor faults Hu Skee Tripping of thermomagnetic circuit breaker for compressor Insufficient oil pressure Excess high pressure Discharge temperature too high Tripping of internal protection for compressor LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 78 KP07 VDU CONSOLE 4 5 4 Miscellaneous faults Ki Bell a J tt di reg va Ra Sa gg Zb 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 in
2. CLIMATIC USER MANUAL di 4 Sai ZK LENNUX CHILLERS V 2 4 GENERAL CONTENTS Page CONTROL AND REGULATION 2 OPTION Lee egusnee 14 MACHINE FALLT 24 CIRCUL FAULT EE E E 31 COMPRESSOR FAULTS ccccccccccccceeeeeeeeeeeeeeeeeeeceseeeeeeeeeeeeees 38 MISCELLANEOUS ET 44 KP02 DIGITAL CONSOLE Lune EREE Eia ERRERA 51 VISUAL DISPLAY UNIT VDU KP 07 rmmnnrrrnnnnnnrrrrrrnnnnnnnnnnnnnnnnnnre 56 ELECTRONIC CARD DATA 81 LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E BS CONTROL AND REGULATION CONTENTS Page IDEE FUNCTION EEN 3 CONTROL OF EVAPORATOR PUMPS 000eessststteeeeeeeeeeeeees 4 GOLD THERMOSTAT WE 5 HOT TS Tvete 6 CONTROL OF COMPDREGGORG 7 CONTROL OF CAPACITY REDUCTIONS FOR COLD REGULATION mmmuunnrnnnrrrrrrnnnnnnnnnnnnnnnnnsrrevnnnrrrrnnnnnnnnnsnn 8 CONTROL OF CAPACITY REDUCTIONS FOR HOT EUT Ne 9 HP LOAD SHEDDING vr ER 10 CONTROL OF ELECTRONIC EXPANSION VALVE c000e 11 CONTROL OF CONDENSER FANS rrrunrrvvvnnnnvrrrrrnnnnnnnnnnnnnnnnnnnenee 12 SPECIFIC VALVES FOR SCREW COMPRESSOR 0664 13 LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E EN 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 accorda
3. 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 EEN 10 September LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 55 KP07 VDU VISUAL DISPLAY UNIT CONSOLE 1 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 C
4. 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 27 4 4 4 4 Case 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 The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting If the CLIMATIC detects water circulation when no command has been issued to operate POMPEK meaning that the pump is not electrically controlled by the automatic controller the machine restarts automatically 20 seconds after flow is re established Otherwise the machine can only be restarted after a manual reset If the flow is re established within 20 seconds following the start command to the Sr pump the machine restarts automatically Otherwise the unit can only start up again 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 LENNGX CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 Marc
5. ag 3 gt zach F 10 1 EN temperature Chilled water output Se E P vaporation lt eal Chilled water input Seege temperature LENNOX CLIMATIC user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 62 KP07 VDU CONSOLE 3 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 3 6 1 Analogue inputs This screen shows the analogue inputs for the refrigerant circuit which are not shown in the refrigerant diagram screens described in 3 5 e g opening of electronic expansion valve 3 6 2 Logic inputs This screen shows the state of all the logic inputs associated with the circuit and its compressors LENNOX CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 63 KP07 VDU CONSOLE 3 6 3 TOR outputs This screen displays the state of the actuators which control circuit components other the compressors whose operation has already been described in operating states for circuits see 3 4 3 6 4 Fault counters This screen shows the values of counters for all faults on the circuit and its compressors LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E ei KP07 VDU CONSOL
6. 3 9 3 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 e g general alarm 3 9 4 Fault counters Faults and fault counters associated with specific options appear on this screen e g temperature of water input to free cooling outside range 3 9 5 Other variables im S INOCCUP INOCDAY INOCHK 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 CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _67 VDU CONSOLE KP07 3 10 Fault log The event log allows recording of the last 24 changes of state related to faults Depending on the configuration chosen in the console application program either fault occurrences only or fault occurrences and clearances are taken into account The log displayed relates only to the controller which is currently in communication with the display unit If other KP01 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 3 1 3 11 On off switches on refrigeration circuits This screen can be used to configure authorisation to switch on each refrigeration circuit or to keep it switche
7. C Trouble shooting Sensor fault on input or output of chilled water Replace sensor Wiring fault or disconnection of sensor Check sensor connection LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E op HOT WATER TEMPERATURES OUTSIDE RANGE A SL Logical variable DTEC Incident codes KP02 2 KP07 icon D The input or output temperature of hot water measured on the water cooled condensers is outside the authorised range TEEC lt 27 C or TEEC gt TECS TSEC lt 27 C or TSEC gt TECS With TEEC Hot water input temperature C TSEC Hot water output temperature C TECS gt Maximum hot water temperature at condenser C Immediate machine halt 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 Hot water input or output sensor defective Replace the sensor Wiring fault or disconnection of the sensor Check sensor connection LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E EI INSUFFICIENT FLOW OF CHILLED WATER A Logical variable DFSE Incident codes KP02 3 KP07 icon or The flow switch FSE detects an insufficient flow in the evaporator for ove
8. 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 0 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 3 3 READ DATER mode Read accessible dater elements are The element is selected by holding key A pressed down and pressing briefly on or LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 54 KP02 DIGITAL CONSOLE Pressing key V displays the value of the selected data item Note If the user does not press V the value appears automatically after 1 minute 3 4 SET DATER mode This mode can be used to adjust the 6 dater elements hours and minutes SS the day of the month amp the day of the week S amp S the month S the year amp 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 setting ranges are as follows
9. 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 THERRP depending on the following 2 parameters TSEG lt gt Chilled water output temperature C CONSREG Chilled water instruction C TSEG CONSREG 1 C CONSREG CONSREG O0 5 C time THERR 0 1 0 1 2 7 1 0 As soon as TSEG becomes lower than CONSREG 0 5 C capacity is reduced As long as the TSEG stays lower than CONSREG 0 5 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 TSEG is greater than CONSREG As long as the TSEG condition is satisfied an additional capacity reduction is stopped every 2 minutes If TSEG goes above CONSREG 1 all capacity reductions are stopped Note gt The compressors are started up and maintained at reduced power for 2 minutes The screw compressors start up at 25 of power gt In continuous regulation the power reduction stages allowed on all screw compressors are 50 and 75 The 25 stage is only used on machines with 2 compressors at the most LENNGX CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E e CONTROL OF CAPACITY REDUCTIONS FOR HOT REGULATION To adjust the hot water output temperature as closely as possible to the s
10. 21 fax 380 44 213 14 21 e mail jankauk uct kiev ua LENNOX DISTRIBUTION tel 3347223 2014 fax 33 4 72 23 2028 e mail marketing lennoxdist com L ENNGX www Lennox com
11. 3 Identification of components it O fen ml hl ml LA R 190 hl ml ml hl E hl ml hl E 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 Compressor no 1 for refrigeration circuit no 1 Compressor no 2 for refrigeration circuit no 1 Compressor no 1 for refrigeration circuit no Compressor no 2 for refrigeration circuit no 2 LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 75 ml LA im a di G Pal l d funka d d hl d d bh fh A 44 0 VDU CONSOLE KP07 Compressor no 1 for refrigeration circuit no 3 Compressor no 1 for refrigeration circuit no 4 Primary chilled water pump no 1 Primary chilled water pump no 2 secondary chilled water pump no 1 secondary chilled water pump no 2 Hot water pump no 1 Hot water pump no 2 erating states 6662 on LENNOX Stages required for chilled wat
12. COM B can be used to connect a KP07 VDU console a micro computer or a GTC The COM C port is designed solely for a link with a KP02 digital console or a KP07 VDU console the choice of the type of console is made via microswitch no 8 on SW 1 The asynchronous serial link uses the following 4 signals TXD transmission of CLIMATIC data RXD reception of CLIMATIC data GND reference mass for the 2 signals TXD and RXD Power supply The characteristics of the COM B link are as follows Communication speed configurable via a JBUS gateway baud rate 4800 by default 2400 or 1200 Parity odd Data format 8 bits Number of stop bits 1 Connection to both COM ports is by 4 point plug in connector pitch 3 81 mm J14 J15 Each port is fitted with a yellow led which flashes when dialogue between the KP01 and the end device is OK LD6 for COM B LD5 for COM CH Note Any connection of a PC to a KP01 requires the installation of an RS232 interface In the same way CLIMATIC dialogue with a GTC must go through a KPO6JBUS gateway 3 CONFIGURATION 3 1 Battery switch SW4 When the card is in use SW4 must be on T so that data can be backed up During storage or breakdown periods it is recommended to turn the battery off R to stop it discharging unnecessarily Caution the dater does not work if the battery is not switched on LENNGX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E
13. DTEFC Incident codes KP02 97 KPO7 icon N The inlet chilled water temperature which is measured by the sensor located on the collector forward free cooling coils is outside authorized range TEEGFC lt 15 C or TEEGFC gt 65 C Immediate halt of free cooling free cooling fans stop and the 3 way valve completely by pass the coils 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 13 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 CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 49 DIALOGUE BETWEEN CPU AND KP07 INTERRUPTED Logical variable Incident codes KP02 KPO7 icon a E After 3 attempts the KP07 VDU has not succeeded in establishing a dialogue with at least one 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 cleared 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
14. _ 84 CLIMATIC CARD gt KPO1 3 2 Analoque inputs switches SW5 1 to SW5 8 These jumpers allow configuration of the type of analogue input CTN or 0 20 mA If one of the first 3 analogue inputs is invalid due to the presence of a KP05 extension the corresponding switch SW5 1 to SW5 3 must be set to zero position i e withdrawn 3 3 COM C port microswitch SW1 8 The 8 block of the SW1 switch is used to configure the type of console digital or VDU connected to the port 3 4 Chaining link switches SW2 SW3 If several KPO1s are linked together the switches should be set as shown in the table below Card 0 master Card n gt 0 slave internal suppl external suppl 1 2 2 3 By default a KP01 is configured as slave 4 KP01 CARD REPLACEMENT PROCEDURE gt Note all instruction values gt Turn off the power supply to the card and replace the card gt Take the EPROM from the old card and fit it to the new one positioning it as shown below Keying band e gt Set the battery jumper to the on position and set the other jumpers to the same positions as on the old card gt Reconnect all connections on the CLIMATIG referring to the wiring diagram gt Switch the power supply to the card back on and enter the old instructions on the new card Caution never connect or disconnect IC connectors when the power supply to the card is on LENNOX CLIMATICTM II user Manual Liquid chillers
15. 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 A 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 The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting The fault reset limits are as follows R22 gt 3 bar abs or 14 at saturation temperature R407C gt 2 5 bar abs or 16 at steam saturation temperature Case 0 amp 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 Insufficient 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 CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 30
16. by one unit every T time interval If HPHAUT lt PTHPn lt HPHAUT 1bar T TEMPOV If HPHAUT 1bar lt PTHPn lt HPHAUT 2bars T TEMPOV 2 If 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 below 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 LENNGX CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 12 SPEGIFIC 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 COMP mn is in operation and the discharge temperature TREFmn is greater than 100 C INJLmn is kept open as long as the compressor COMP mn is in operation and the discharge temperature TREFmn is greater than 90 C 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 6 and high pressure in circuit n PTHPn is greater than P1 ECOmn is
17. cards Check electrical supply to cards LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 50 KP02 DIGITAL CONSOLE 1 GENERAL PRESENTATION The KP02 console is a man machine interface consisting of a 6 digit display 6 indicator lights and 5 keys E General alarm Spare indicators flashing red 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 8I11 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 2 DISPLAY FORMATS 2 1 Time amp 12 hours and 59 minutes When the console keypad is inactive for 5 minutes the time is automatically displayed LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E ei KP02 DIGITAL CONSOLE 2 2 Date 2 3 Address of a variable 2 4 Value of a variable 2 4 1 Logical values 2 4 2 Temperatures The temperatures are displayed in C t
18. have 8 additional analogue inputs The first 4 inputs can be connected either to a CTN type temperature sensor 10 kQ at 25 C or to a conventional 0 20 mA sensor Inputs 5 to 8 are reserved for CTN temperature sensors It is possible to connect up to 3 KP05 extensions to the same KP01 Since each addition of a KP05 makes one KP01 analogue input unavailable the complete configuration allows a maximum number of 5 3 x 8 29 analogue inputs 2 EXTERNAL LINKS 2 1 Power supply 0 20 mA sensors require a 18 Vdc power supply This power is generated by the additional KP10 card installed on the KPO1 and is transmitted to the KP05 see CLIMATIC CARD gt KP01 and O EXTENSION 18 VDC POWER SUPPLY gt KP10 Connection of the 18 Vdc power supply is by a 2 point plug in connector pitch 3 81 mm J3 2 2 Analogue bus Transits between the KP05 and the KPO1 via an HE10 14 point connector A green led indicates operation of the KP01 KP05 link LD1 2 3 Analogue inputs Connection is by a 12 point plug in connector pitch 3 81 mm J1 3 CONFIGURATION 3 1 Types of input SW1 to SW8 Each input is assigned a jumper Depending on whether the input reads a CTN sensor or a 0 20 mA sensor the position to be used for the jumper is marked on the card Note that the last 4 inputs must be configured to CIN 3 2 Addressing SW9 The possible address numbers are 1 2 or 3 Two KP03s connected to the same KP01 cannot have the same add
19. heating operations successively Note Before start up of the first compressor on the circuit the expansion valve is pre set to an opening value calculated on the basis of the chilled water output temperature LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 11 CONTROL OF 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 High pressure limit abs bar Setting HPBAS lt gt Low pressure limit abs bar instructions The minimum difference between HPHAUT and HPBAS is 5 bar TEMPOV Timing of raising or lowering of ventilation stage s PTHPn HPHAUT 2bar HPHAUT 1 bar HPHAUT At t 0 start up of 1st compressor N 1 t TEMPOV HPBAS 1bar HPBAS T2 74 time 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
20. icon GP The supply presence voltage relay is tripped PT230V 0 The compressor casing resistors and the anti freeze resistors on the hydraulic circuit are no longer fed 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 230 V supply has been restored Trouble shooting Wiring fault on 230 V supply Wiring fault on voltage presence relay Check connections and voltage of 230 V power supply arriving at the machine Check wiring of power presence relay LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 29 INCORRECT SEQUENCE OF PHASES A Logical variable DPHASE Incident codes KP02 9 KPO7 icon This fault only applies to machines fitted with scroll or screw compressors The phase controller is tripped PHASE 0 It detects an inversion or a bad phase coupling Immediate machine halt 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 Note The fault is cleared automatically every time the machine is switched on 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
21. indicated by 2 green leds LD3 for 12V principal and LD2 for 12V isolated LENNOX CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 82 CLIMATIC CARD gt KPO1 2 2 Logic inputs Logic inputs are basically linked to hard contacts from control equipment installed on the machine e g pressostats magneto thermal circuit breakers flow controller etc Connection is by a 12 point plug in connector pitch 3 81 mm J26 Wiring of machine equipment to a logic input can be in unscreened cable However screened cable must be used for connection to the terminals provided for the customer s use 2 3 Analogue inputs Analogue inputs can be used to connect CTN temperature sensors 10 kQ at 25 C or pressure transmitters All 0 20 mA sensors whatever the quantity measured must have a supply connection to a KP10 card connected to the KP01 at J23 Connection to analogue inputs is by a 12 point plug in connector pitch 3 81 mm J25 In addition the 18 V dc voltage generated by the KP10 is transmitted to the KP05 extension cards via a 2 point plug in connector pitch 3 81 mm J24 2 4 Logic outputs The inverter type actuator relays are used in particular for on off control of motorised components of the machine such as compressors fans and solenoid valves They can also be used to transmit logical information on hard contacts fitted to terminals Connection is by a 3 point plug in connector p
22. kept open as long as compressor COMP mn is in operation and at full capacity and the discharge temperature TREFmn is greater than 6 2 C and high pressure in circuit n PTHPn is greater than P2 LENNOX P1 bar absolute P2 bar absolute CLIMATIC user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E Ge OPTIONS CONTENTS Page COLD REGULATION WITH GRADIENT 15 HOT REGULATION WITH GRADIENT cccccccccceesseeeeeeeeeeeees 16 LOW HIGH SPEED CONTROL OF KEE 17 PREE ING EN 19 HEATRECOVERY E 21 MANAGEMENT OF UNITS IN PARALLEL rrrrnnnnrrvvnnnnnnrrrrrnnnnnnnnnnnn 22 LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 14 COLD REGULATION WITH GRADIENT Function 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 The set point for CONSCALC regulation is calculated according to the following parameters 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 CONSEI lt gt Required water instruction for air instruction CONSAM C CONSEI
23. 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 CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 39 CIRCUITS FAULTS CONTENTS Page LOW PRESGSGUREINGUFEIOENT 32 EVAPORATOR FREEZING serren een ran Arn ARRENA NASEN 33 INSUFFICIENT Eege 34 VACUUM SUCTION FAILURE rnnnnnnnnnnnnvvnnnnnnnrrrrrnnnnnnnnnnnnnnnnnnnnnnne 35 SENSOR OR DETECTOR FALLT 36 EXPANSION VALVE OPENING INCORRECT cccccseeeeeeeeeeeees 37 LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 31 LOW PRESSURE INSUFFICIENT Logical variable DBPn Incident codes KP02 ni KPO7 icon zs A The BP cut off point is defined as a refrigerant function as follows R22 gt 2 bar abs or 25 at saturation temperature R407C gt 1 5 bar abs or 28 at steam saturation temperature Case 0 No compressor on circuit n is working The liquid valve has been open for 2 minutes but low pressure remains lower than safety limits Note On screw units the liquid valve is controlled in parallel with the compressor The condition on its opening has therefore not been taken into account when generating the BP fault 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
24. with a logic input allowing the user via a hard contact to authorise or prevent switching of fans to high speed PTHPn Case of a circuit with 4 fans At t 0 start up of HPGV HPGV HPDIFF HPHAUT HPBAS bar HPBAS 1 compressor N 1 T TEMPOV e Putting fans into service at low speed At start up of the first compressor on the circuit as soon as high pressure is greater than HPBAS 1bar N fans are started immediately the number N depends on the outside air temperature When PTHPn exceeds HPHAUT the thermostat THVn is increased by a stage When the pressure remains above HPHAUT THVn continues to be incremented by one unit every TEMPOV time interval LENNOX CLIMATIC user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 17 LOW HIGH SPEED CONTROL OF CONDENSER FANS suite gt Switching fans to high speed Switching of one or more fans to high speed is only authorised if the variable MAARGV is set to 1 When all fans on the circuit are running at low speed THVn total number of fans on the circuit and PTHPn exceeds HPGV a fan is switched from low to high speed the thermostat THGVn is increased by one stage As long as the pressure remains above HPGV THGVn continues to be incremented by one unit every TEMPOV time interval When a fan is switched to high speed it is included in THGVn and also continues to be counted in thermostat THVn gt Return of fans to l
25. 2 4 March 2001 E 101 GREAT BRITAIN IRELAND BELGIUM CZECH REPUBLIC FRANCE GERMANY NETHERLANDS POLAND PORTUGAL RUSSIA SLOVAKIA UKRAINE OTHER EUROPEAN COUNTRIES AFRICA MIDDLE EAST CLIMATIC CHILLER V2 4 03 2001 E LENNOX INDUSTRIES LTD tel 44 1604 599400 fax 44 1604 594200 e mail marketing lennoxind com LENNOX BENELUX N V S A tel 32 3 633 30 45 fax 32 3 633 00 89 e mail info be lennoxbenelux com JANKA RADOTN AS tel 420 2 510 88 111 fax 420 2 579 10 393 e mail janka janka cz LENNOX FRANCE tel 33 1 60 17 88 88 fax 33 1 60 17 86 58 e mail accueilQlennoxfrance com LENNOX DEUTSCHLAND GmbH tel 49694209790 fax 49 69 42 09 79 40 e mail info deQlennoxdeutschland com LENNOX BENELUX B V tel 31 33 2471 800 fax 31 33 2459 220 e mail info lennoxbenelux com LENNOX POLSKA Sp 20 0 tel 48 22 832 26 61 fax 48 22 832 26 62 e mail lennoxpolskaQinetia pi LENNOX CLIMATIZAGAO LDA tel 351 22 999 84 60 fax 351 22 999 84 68 e mail info lennoxportugal com LENNOX DISTRIBUTION MOSCOW tel 7 095 246 07 46 fax 7 502 933 29 55 e mail lennox dist moscow mtu net ru LENNOX SLOVAKIA tel 42174487 1927 fax 421 7 44 88 64 72 LENNOX REFAC S A t l 34 902 400 405 fax 34 91 542 84 04 e mail marketing lennox refac com LENNOX DISTRIBUTION KIEV tel 380 44 213 14
26. CONSCALC TECS 2 C CONSEM fev es joa PENTEC CONSEC De er 25 FG bindene KER er CONSAI CONSA TEA CONSCALC CONSEC PENTEC x TEA CONSA 100 Example of requlation TEA CONSCALC With CONSAI 10 C CONSEM 50 C CONSA 15 CONSEC 30 C gt PENTEC 80 LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E ue LOW HIGH SPEED CONTROL OF CONDENSER FANS To give priority to fan operation at low speed only allowing switching to high speed to avoid HP cut out The CLIMATIC calculates the numbers of stages of low speed ventilation THVn and high speed THGVn required for correct operation of each cooling circuit THVn and THGVn depend on the following parameters PTHPn Condensation pressure circuit n bar abs TEA Outside air temperature C HPHAUT High pressure limit for start up of fans bar abs HPBAS Low pressure limit for stopping fans bar abs The difference between HPHAUT and HPBAS must be 5 bar minimum Instructions HPGV lt High pressure limit for switching fans to high speed bar abs can be The difference between HPVGV and HPHAUT must be at least 3 bar adjusted HPDIFF Pressure differential for switching of fans to low speed bar The minimum value of HPDIFF is 2 bar TEMPOV Timing for increasing or reducing ventilation stage s MAARGV Confirmation of high speed mode This variable is associated
27. E 3 6 5 Miscellaneous settings This screen displays the calculated values of significant circuit variables such as the anti short cycle of compressors the ventilation thermostat or the order of position given to the expansion valve 3 2 Pump operating states Nature of any fault present on one of the pumps Operating states of pumps on or off 3 8 Machine operating states Number of stages required for regulation Number of compressors in operation on the machine LENNOX CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 65 KP07 VDU CONSOLE 3 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 3 9 1 Analogue inputs This screen contains the temperatures associated with specific options e g temperatures of chilled water at input to free cooling or hot water at I O to a heat recovery exchanger 3 9 2 Logic inputs This screen shows the states 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 CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 66 KP07 VDU CONSOLE
28. EVAPORATOR FREEZING A Logical variable DGELn Incident codes KP02 n2 KPO7 icon p This fault is only processed on machines cooling water without solution which does not freeze at 0 C glycol or brine Case 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 Case 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 ith TBPn lt gt Evaporation temperature circuit n C TASPn Suction temperature for circuit n C TBPI lt Minimum evaporation temperature C The minimum and default value of instruction TBPI is defined as follows 1 R Tubular case suction temp superheated 1 C Z Pate case suction temp superheated Immediate halt of circuit n The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting Case O For the first fault resetting is automatic after of 30 minutes if the evaporation temperature has returned to over TBPI 5 After 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 After this circuit n can only be restarted after manual resetti
29. G To reduce the power of a cooling circuit before the high pressure reaches the cut off point HP load shedding is only processed as standard on air condensation units which are not fitted with heat recovery It is activated in particular at start up of the machine when the ambient air temperature is high The load shedding phase on circuit n is characterised by the variable DELESTn It is determined in accordance with the condensation pressure on circuit n PTHPn Activation of load shedding As soon as high pressure PTHPn exceeds 25 bar absolute circuit n is put into load shedding DELESTn 1 On circuits with one compressor only load shedding consists of forcing the compressor into maximum power reduction on condition that the compressor is fitted with at least one power reduction valve On circuits which have 2 compressors mounted in parallel load shedding stops one of the 2compressors gt Stopping load shedding When high pressure PTHPn goes back below 19 bar absolute the load shedding phase of circuit n ends DELESTn 0 The circuit compressors go back to normal regulation which then only depends on thermostats THER and THERRP LENNOX CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 10 CONTROL OF ELECTRONIC EXPANSION VALVE Function To control correct filling of the evaporator with refrigerant in order to obtain highest efficiency whilst protecting the compressor again
30. LIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 34 VACUUM SUCTION FAILURE A K Logical variable DPUMPDn Incident codes KP02 n5 KPO7 icon This fault is only processed on units in which the evaporator is physically located above the compressors e g LCW range 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 The end limit of vacuum creation is defined as a refrigerant function as follows R22 gt 2 bar abs or 25 C at saturation temperature R407C gt 3 bar abs or 11 C at vapour saturation temperature Immediate halt of circuit n 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 CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 35 SENSOR OR DETECTOR FAULTS A Logical variable DSONDEn Incident codes KP02 n6 KPO7 icon e s One or more temperature sensors or pressure detector
31. MACHINE FAULTS CONTENTS Page TEMPERATURES OF CHILLED WATER OUTSIDE RANGE 25 HOT WATER TEMPERATURES OUTSIDE RANGE errrrnrnrrnnrrnnnre 26 INSUFFICIENT FLOW OF CHILLED WATER rnnrnnannnnrnarnnnnnernanener 27 INSUFFICIENT FLOW OF HOT WATER 28 ABSENCE OF 230V SUPPLY WITH BACKUP ruurannrrarennerennerevnnen 29 INCORRECT SEQUENCE OF PHASEG meeeverrvrerevnrrvnrernrrnrarenneen 30 LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E EI TEMPERATURES OF CHILLED WATER OUTSIDE RANGE A Logical variable DTEG Incident codes KP02 1 KPO7 icon n The input or output chilled water temperature measured by the sensor is outside the authorised range Water without glycol Water with glycol maxi 30 glycol TEEG lt TEGI or TEEG gt 65 C TEEG lt 15 or TEEG gt 65 C TSEG lt TEGI or TSEG gt 65 C TSEG lt 15 or 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 The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting Automatic fault resetting once chilled water temperatures return to normal operating range Water without glycol Water with glycol maxi 30 glycol TEGI 2 C lt TEEG lt 60 C 13 C lt TEEG lt 60 TEGI 2 C lt TSEG lt 60 C 13 C lt TSEG lt 60
32. Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E EI KP07 VDU CONSOLE 3 12 3 Control parameters for condenser ventilation specific for chillers with air cooled condensers High pressure limit for increase of ventilation stages I TEMPO TEMPO Fal Low speed high speed 15 68 Heers option Timing of going up or down a ventilation stage Low pressure limit for reduction of ventilation staaes 3 12 5 Control parameters for condenser ventilation in PV GV option specific to air condensation machines HP limit for switching fans from low speed to high speed Pressure differential for Switching from High speed to low seped 3 12 6 Parameters for regulation with gradient on air temperature option The screen below corresponds to the case of a liquid chiller Calculated chilled water Water instruction instruction read only variable required for the 17 air temperature selected CONSA DC COMSCALC HF 1 Water instruction required 11 6 cConseG for the 2 air temperature selected a A conser CONSAM PT Pi oC MIMI 4 B TEGI I zm ee Ss m mm mm mm Oh I CONSA COMSAM Minimum temperature of chilled water 1 reference air temperature 2 reference air Ambient air temp rature temperature LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E EI KP07 VDU CONSOLE 4 GLOSSARY OF ICONS Icons
33. PT5 12V rectified and filtered before regulation PT6 VRF PT7 SDA l2 C signal DATA PT8 SCL I C signal CLOCK SW 1 Switch for the configuration of the card address LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 88 EXTENSION ANALOGUE OUTPUT gt KP04 1 PRESENTATION The KP04 card allows the CLIMATIC to control an additional 0 10 V analogue output via a digital analogue converter This type of output is used to control modulating equipment such as damper motors and proportional valves It is possible to connect up to 4 KP04 extensions to the same KP01 offering a maximum capacity of 2 4x 1 6 analogue outputs 2 EXTERNAL LINKS 2 1 Power supply The 12 Vac power supply to KP04 cards is external It is provided by the single transformer which generates the 12 V power supply for all CLIMATIC CPU and extension cards see of the technical data CLIMATIC CARD gt KP01 Connection of the power supply is by a 2 point plug in connector pitch 5 08 mm J3 The presence of power on the KP04 is shown by a green led LD1 2 2 Link with the KP01 and other KP04s Based on an TC bus this link uses 2 RJ45 type connectors J1 amp J2 A yellow flashing led signals that dialogue on the UC bus is OK LD2 2 3 Analogue output Connection is via a 2 point plug in connector pitch 3 81 mm J4 3 CONFIGURATION AND CALIBRATION 3 1 Addressing configuration SW1 amp S
34. PU is connected its card number is also declared 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 KPO7 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 CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 56 KP07 VDU VISUAL DISPLAY UNIT CONSOLE 1 1 Key allocation 1 1 1 SCREEN keys These are the 7 keys located around the LCD screen 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 of accessing another screen e or entering a Boolean value in a given variable 1 1 2 Offset keys The functions of these 5 keys are fixed PAGE DOWN key 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 O SUMMARY key G
35. Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 85 5 CARD DIAGRAM CLIMATIC CARD gt KPO1 OC Se ees am Hz te Geet H I ar sO 123 St U aL a z Card n 1 d arbo Se We ne Fig T2 DIR A20 gro o2 HI goy 0 SM ar i EI AS 2 e I Cie e lt Vi C74 4 ce cyu 118 KO 128 C22 er SCH G S on LB w a os ZEN JE EE CR GREEN u2 R bel ZN 4 re va De CT 0 uP pza H LD wig a mn Ld op EE i LDB a av H VE mn d FG J1 to J8 J10 J11 J13 J14 J15 J16 J20 J17 J21 J18 J22 J19 J23 J24 J25 J26 LD2 LD3 LD4 T o oo LW cof mme D ku US 506 Eon Ce ok kk r 2 D i a fei D UI 1505 6 n gt I R r WM deis PTI Lizv c J Connectors 8 output relays LD5 LD6 Leds presence of dialogue on COM C B Connector 12 Vac supply T PT1 PT2 12 Vac Connector 12 Vac isolated supply PT3 0 V isolated Connector chaining link PT4 Vcc 5 V RJ45 connectors 1 C bus PT5 Gnd Connectors for KP11 or KPO9 PT6 11 V isolated Connectors 2 0 10 V outputs PT7 VRF 12 Vdc Connectors 2 serial links PT9 Reset Connector analogue bus PT10 Power Fail Connector for KP10 PT11 PT13 12 Vac isolated Connector 18 Vdc supply PT12 Clock Connector analogue inputs SW1 DIL Microswitches Connector logic inputs SW2 SW3 Chaining link config switches Led presence of 12 Vac isolated power SW4 Battery config swi
36. TIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E an EXCESS HIGH TEMPERATURE Logical variable DHPmn Incident codes KP02 mn5 KPO7 icon BS The high pressure safety cut out on compressor mn PHPmn has tripped Immediate halt of compressor mn 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 Malfunction of liquid solenoid valve Check operation of solenoid valve Dehydrator clogged Replace the dehydrator Wiring fault or high pressure safety cut out wrongly set Check setting and wiring of high pressure safety cut out LENNGX CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E WI DISCHARGE TEMPERATURE TOO HIGH A Logical variable DREFmn Incident codes KP02 mn6 KPO7 icon el The discharge temperature on compressor mn REFmn stays over 120 C for over 9 seconds Immediate halt of compressor mn The fault is displayed on the screen The remote fault re
37. Trouble shooting Faulty connection or connections too tight Check connections Cut out switch wrongly set Set the protection in accordance with the rated current for the compressor LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 39 OIL PRESSURE INSUFFICIENT Logical variable DHUILEmn Incident codes KP02 mn2 KPO7 icon D This fault only applies to semi hermetic reciprocating compressors The total time during which the oil pressostat on compressor mn POILmn 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 its triggering point for over 3 minutes Immediate halt of compressor mn The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting The first fault is cleared 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 CLIMA
38. U CONSOLE 3 CONTENT OF SCREENS 3 1 Summary Date and time Presence of a Number of controller in general alarm on communication with the machine display unit Temperature of chilled Temperature of chilled water water input or hot water for output or hot water for a Water instruction a PAC PAC On a machine not fitted with the option regulation with gradient the active water instruction CONSEA or CONSEB is a variable which can be modified in modification mode In the case of regulation with gradient the active instruction CONSEA can be modified However CONSALC cannot be modified since it is the result of a calculation see pages 15 and 16 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 3 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 LENNGX CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 60 KP07 VDU CONSOLE 3 3 Access to the different
39. W2 The possible address numbers are 1 2 3 or 4 Two KP04s connected to the same KP01 cannot have the same address For each address the position of the jumper to be used is shown on the card 3 2 Calibration P1 The potentiometer P1 allows adjustment of the gain to ensure voltage of 0 to 10 V on the analogue output This adjustment is made systematically in the factory LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 89 EXTENSION ANALOGUE OUTPUT gt KP04 4 CARD DIAGRAM D ANA e KH A a a CQ c RI7 SEA ge sal 181 o mer U6 ma C21 Ci 6 ga a C4 RADI oni A C CH u3 i t502 ca C71 2a nd Ria Fa RIZ R3 R4 1501 RIS Fr DE SE Ke lt Oien BR ISEN lj Ji 2 us I C MGS LD Qa LD2 a di F2 F3 100 mAT fuses J1 J2 RJ45 connectors for the I C bus J3 Connector 12 Vac external power supply J4 JAS Connector 0 10 V analogue output LD1 LED presence of 12 Vac LD2 LED presence of lC dialogue Pt Potentiometer for card calibration D Earth PT2 VRF PT3 12V isolated PT4 OV isolated PT5 5V isolated Vcc 5V GO 12V rectified and filtered before adjustment Gud Switches for configuration of the card address LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E en EXTENSION 8 ANALOGUE INPUTS gt KP05 1 PRESENTATION The KP05 card allows the CLIMATIC to
40. X CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 73 LENNOX KP07 VDU CONSOLE 4 2 Screen headings Temperature curves for water output from the machine Access to operating states for refrigeration circuits pumps and machine 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 Operating state of secondary chilled water pumps Operating state of hot water pumps Operating state of machine Fault log Access to the different tables of variables Analogue inputs other than those shown on refrigeration diagrams Logic inputs TOR outputs Miscellaneous variables Fault counters On off controls for refrigeration circuits On off controls for primary chilled water pumps On off controls for secondary chilled water pumps On off controls for hot water pumps CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 74 KP07 VDU CONSOLE Password entry for access to modifiable instructions Access to the various instructions Water temperature instructions Idle timers day night Control parameters for condenser fan Low high speed control parameters for condenser fan Parameters for regulation with gradient on air temperature 4
41. are classed in 6 categories GE a Ki Em Screen headings Identification of components Operating states Faults On off settings and instructions 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 no faults are reported 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 no faults are reported 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 no faults are reported on the circuit Access to operating state for refrigeration circuit no 4 there is a fault on the circuit Access to operating states for chilled water pumps no faults are reported on the pumps Access to operating states for hot water pumps no faults are reported on the pumps Access to operating states for secondary chilled water pumps no faults are reported on the pumps Access to operating states for secondary chilled water pumps there is a fault on the pumps Access to operating states for hot w
42. ater pumps there is a fault on the pumps Access to operating states 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 LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 72 KP07 VDU CONSOLE reset Reset faults and fault counters to zero Access to refrigeration diagram for selected circuit Access to fault log Access to the different tables of variables a Access to analogue inputs other than those shown on refrigeration diagrams Access to logic inputs gii u 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 I 2 Selection of figure to be modified see 81 2 Incrementation of figure from 0 to 9 see 81 2 HRS Validation of current modification see 81 2 V T Access to on off controls for refrigeration circuits and for pumps Access to the various instructions Access to water temperature instructions Access to idle timers day night Access to control parameters for condenser fan Access to low high speed control parameters for condenser fan Access to parameters for regulation with gradient on air temperature LENNO
43. ayed on the screen The remote fault report is delayed for 6 minutes Resetting Fault resetting is manual Trouble shooting Expansion valve sensor fault Wiring fault or disconnection of the sensor 24V supply fault on expansion valve The green LED on the static relay is lit up but the expansion valve is not heating Replace expansion valve Check sensor connection Check supply Check the static relay and the expansion valve controller card LENNOX CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E COMPRESSOR FAULTS CONTENTS Page COMPRESSOR CUT OUT SWITCH TRIPPED c ccsccceeeeeeees 39 OIL PRESSURE INSUFFICIENT rrrnnnnnnnvvvnnnnnrrrrrrrnnnnnnnnnnnnnnnnnnnnnre 40 ECE HIGH PRESSURE vvs 41 DISCHARGE TEMPERATURE TOO HIGH 42 INTERNAL PROTECTION TRIDPED 43 LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 38 COMPRESSOR CUT OUT SWITCH TRIPPED Logical variable DELECmn Incident codes KP02 mnt KPO7 icon A The thermomagnetic cut out switch on compressor mn is tripped ELECmn 0 Immediate halt of compressor mn 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 Note The fault is cleared automatically every time the machine is switched on
44. ber of compressors which can operate in load shedding mode THERMAX LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 80 ELECTRONIG CARD DATA CONTENTS Page CLEIMATIC ne Lee 82 EXTENSION 16 LOGIC INPUTS gt KP03 rrnnnnnnnnnnnnnnnvvrrnnnnnnrnnnnnn 87 EXTENSION ANALOGUE OUTPUT gt kO 89 EXTENSION 8 ANALOGUE INPUTS gt KPOS5 nnnnnnnnnnnnnnnnnnnnnnnnnne 91 EXTENSION 8 RELAYS KP 08 vcccascicrccndespascnetsseapiadctecanetntcemtedens 93 DAUGHTER CARD DIGITAL OUTPUT 0 10 V gt kO 95 EXTENSION 18VDC SUPPLY ski 96 FEMALE CARD ANALOGUE OUTPUT gt Kb 97 DIGITAL CONSOLE gt HPO E 98 VDU CONSOLE gt EN 99 LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E a CLIMATIC CARD gt KPO1 1 PRESENTATION The main KP01 card is fitted with a microprocessor 68HC16 an EPROM containing the program for regulation of the machine and a battery used to supply power to the dater and to save important operational data in the event of a power cut In its basic version a KPO1 card has gt 8 logic inputs gt 8 analogue inputs An optional KP10 card generating an 18 Vdc supply can be installed on the KP01 to supply the 0 20 mA sensors gt 8 logic outputs gt 2 asynchronous serial links designed for dialogue with a PC a GTC or a digital or VDU console As an option the addition on the KP01 o
45. cated by the markings printed on the KP01 LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _97 DIGITAL CONSOLE gt KP02 PRESENTATION See I chapter KP02 DIGITAL CONSOLE Keyboard ribbon cable Cable earth connection SE Keyboard earth connection Earth ferrule Front face KP01 FFE D CR GF LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 98 VDU CONSOLE gt KP07 1 PRESENTATION See I chapter VDU CONSOLE KP07 2 CONFIGURATION Communication port SW4 and external internal supply SW1 amp SW2 The communication port B or C is configured using switch SW4 as shown below z Port B mm e Port C The choice between external or internal supply depends on which KPO1 communication port the KPO7 display unit is connected to and its local or remote position in relation to the CPU Type of supply The positions of jumpers SW1 and SW2 to be used depending on internal or external power supply configuration are marked on the card They must both indicate the same type of power supply Adjusting contrast P1 The potentiometer P1 allows adjustment of screen contrast by default 3 REPLACEMENT OF A VDU CONSOLE Procedure to be followed gt Turn off the supply to the card and change the card gt Retrieve the EPROM from the old card and the fit it to the new one se
46. condenser Ni TEA 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 FSCR lt gt Recovery condenser flow controller TSECR lt gt Hot water output temperature C CONSECR lt gt Hot water instruction C RECUP is set to 1 if FSCR is on for over 15 seconds and TSEGR lt CONSECGR RECUP remains at 1 as long as FSCR has not been off for over 15 seconds and TSECR lt CONSECGR 2 Control of air condenser fans On switching to recovery mode the ventilation thermostat for circuit n THVn is forced to 0 for 5 seconds If the high pressure of circuit n exceeds 25 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 is incremented the value of the hot water output temperature TSECR is memorised in the variable MTSEGR 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 CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 94 MANAGEMENT OF UNITS IN PARALLEL Function To ensure via an indep
47. d off using modification mode After pressing key MI the screen Shows LENNOX CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 68 VDU CONSOLE KP07 3 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 All the instructions which follow can be adjusted via the modification mode LENNOX CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 69 KP07 VDU CONSOLE 3 12 1 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 on chilled water T input T output Chilled water Chilled water setting B setting A Minimum chilled water temperature KR Maximum hot water Minimum evaporation temperature temperature 3 12 2 Idle time clocks End time of End time of idle period weekly idle period Start time of weekly Start time of daily idle idle period period Day ot the week Like the instructions displayed on this screen the date and time are modifiable variables For days of the week value 1 is Sunday and 7 is Saturday LENNOX CLIMATICTM II user
48. dicates the presence of power on the C bus from the KPO1 LD1 A second yellow flashing led indicates that I C dialogue is being carried out correctly LD2 2 1 Logic outputs The relays mounted on the KP08 are inverter type They accept a maximum intensity of 16 A at voltage 250 Vac Connection is by 3 point plug in connectors pitch 5 08 mm J1 to J8 3 ADDRESSING CONFIGURATION SW1 amp SW2 The possible address numbers are 1 2 3 or 4 Two KP08 connected to the same KP01 cannot have the same address For each address the positions of the 2 jumpers are shown on the card LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 93 EXTENSION 8 RELAYS gt KP08 4 CARD DIAGRAM a Orr s O EH HH D KP B Dra 7 ra CR uZ Rit CA uit Sch ae SS gO xe C7 HRS J1 to J8 JSL RL1 to RL8 relay connectors J9 J10 RJ45 connector for IC Bus LD1 Led presence of IG power LD2 Led presence of C dialogue PT1 VRF PT2 Earth PT3 Vcc 5 V Gas Switch for configuration of the card address LENNOX CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 94 DAUGHTER CARD 0 10V OUTPUT gt KP09 1 PRESENTATION The KP09 module is presented in the form of a small plug in r ition n the KP01 The KPO9 delivers a 0 or 10 Vdc stepped signal It is used in particular for on off control via static relays of componen
49. e drawing below Keying band Ad gt Reconnect all connections to the KPO7 referring to the wiring diagram LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 99 VDU CONSOLE gt KP02 4 WIRING O O O O IT EE RRE NSF Front face KP07 12 Vac Connection of r screening by earth CH ferrule FR COM B ER B Vide sy The cable connecting the display unit to the principal unit must be earthed by means of an earth ferrule fixed to the front face using the nut provided for this purpose Given the presence of joints between the front face and the console support and between the support and the door of the electrical cabinet two bonding jumpers are required to ensure proper electrical contact between these 3 elements LENNOX CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 100 VDU CONSOLE gt kp02 5 CARD DIAGRAM F1 J3 J22 J10 LD1 PT1 PT2 PT3 PT4 PT5 PT6 PT8 PTO LENNOX 1 AT fuse Keyboard connector Serial link connector 12Vac power supply connector Led presence of dialogue Adjustment of screen contrast by default 12 Vac Vref Vcc Gnd VLcd Reset Power Fail Power supply configuration switches Communication port configuration switch on KPO1 CLIMATIC user Manual Liquid chillers Ref CLIMATIC CHILLERS V
50. ee 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 lt gt Free cooling regulation thermostat THER lt gt Compressor regulation thermostat AUTOCFP 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 1 as long as THER is strictly positive or V3VFC is not fed LENNOX CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 20 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 e Outline diagram of heat recovery process V T TSEGR Heat recovery water A condenser P A RT TEECR Een Air
51. endent CPU card staging of several units installed on the same water loop in order to adjust the temperature of the cooled fluid as closely as possible to the set point General regulation is by a KP01 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 Solenoid valve TBAL Thermostat on units The thermostat THERG controls switching on and off of the different installation units Gn THERG is calculated in accordance with the following parameters TBAL lt gt Water temperature in the chamber C CONSEG Water instruction for general regulation 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 CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 99 MANAGEMENT OF UNITS IN PARALLEL VE ver 75 180 amp oer 180 281 75 gt 392 9 gt 498 108 Notes THERG can only be incremented by 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 182 we With CONSEG 6 ints teen TBAL Sa TBAL Control of isolation valves for evaporato
52. er 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 Compressor operating at 75 of its total capacity Compressor operating at 50 of its total capacity Compressor operating at 25 of its total capacity CLIMATIC user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E VDU CONSOLE KP07 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 or pump stopped Compressor stopped by refrigeration circuit on off Compressor stopped by remote on off command to machine Pump in operation Free cooling in operation Free cooling stopped 4 5 Faults gt On the unit presence of a machine circuit compressor or miscellaneous fault 4 5 1 General machine faults A D m Chilled water temperature outside authorised range A tA A Hot water temperature outside authorised range Chilled water flow insufficient LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 77
53. et 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 CONSREG 1 C temps THERR 1 0 1 O 1 25 4 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 gt The compressors are started up and maintained at reduced power for 2 minutes The screw compressors start up at 25 of power gt In continuous regulation the power reduction stages allowed on all screw compressors are 50 and 75 The 25 stage is only used on machines with 2 compressors at the most LENNOX CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E e HP LOAD SHEDDIN
54. f 2 KP11 daughter cards or 2 x KPO9 or 1 x KP11 1 x KPO9 gives control of 2 0 10 V analogue outputs or 2 0 10V digital outputs or 1 analogue output 1 digital output respectively The architecture of the CLIMATIC is modular using extension cards The following can be connected to the same KP01 gt 3 extensions 16 logic inputs KP03 card gt 4 extensions analogue output KP04 card 3 extensions 8 analogue inputs KP05 card Each KP05 added takes up an analogue input on the KP01 4 extensions 8 supplementary logic outputs KP08 card In the case where the requirement for inputs outputs on a machine exceeds the capacities of a single KPO1 or if there is a need for communication to be established between different units on the same site chaining of several KP01 cards with their accompanying extensions may be envisaged maximum 8 KP01 with a maximum distance between cards of 100 m 2 EXTERNAL LINKS 2 1 Power supply A single transformer supplies power to the CLIMATIC KP01 extensions and KP07 12 V 50 VA for the principal supply to the KP01 12 V 7 2 VA for the isolated supply to KP03 KP04 KP01 cards 12 V 6 VA for the supply to the KP07 VDU console 230 Vac Connection to KPO1 12 V principal supply Earth gt 3 point plug in connector pitch 5 08 mm J10 12 V isolated supply gt 2 point plug in connector pitch 5 08 mm J11 The presence of a power supply to the KPO1power supplies is
55. g valve e Control of the three way free cooling valve V3VEC is fed if all the following conditions are satisfied gt TEEGFC is greater than the regulation instruction CONSREG GG 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 gt TEEGFC is not less than CONSREG gt TEA lt 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 to the evaporator TEEG and on the regulation instruction LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E ug FREE COOLING CONT TEEG TEEGFC CONS REG 0 5 C EE GE NN CONSREG 0 5 C SE Ga _ EE an sen 3min 3 min 3 min temps THERFC 0 0 1 2 2 1 0 The thermostat is incremented by one stage if TEEG remains greater than CONSREG 0 5 C 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 fr
56. h 1 or SW1 of CPU card 7 Case Q The pump POMPE1 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 INOCCUP 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 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 POMPE1 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 0 e Case 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 conditi
57. h 2001 E _ 45 FAN CIRCUIT BREAKERS TRIPPED an Bo Logical variable DELECV Incident codes KP02 90 KPO7 icon ps One or more thermomagnetic circuit breakers protecting the air condenser fans are tripped ELECV 0 The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting The fault is cleared automatically once all the fan circuit breakers are reset Trouble shooting Bad connection or connections too tight Check connections Circuit breakers wrongly set Set protections according to the rated current for fans LENNOX CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 46 PUMP CIRCUIT BREAKER TRIPPED A Logical variable DELECPk Incident codes KP2 Pump 1 KP07 icon 92 pump 2 5 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 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 The fault is displayed on the screen The remote fault report is delayed for 6 minutes Pump k is not in service The fault is displayed on the screen The rem
58. he 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 CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 53 KP02 DIGITAL CONSOLE 3 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 3 2 INSTRUCTIONS mode The address of the instruction to be modified is selected as for VARIABLES mode see 3 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 starts with the rightmost digit then moves to the left Decrementation is in a similar manner using keys A
59. his variable is calculated as follows ENCL DELTAT No Of compressors Example of a machine with 4 compressors CONSREG TEEG Compressor stop eee Note The thermostat is only authorised to increase by a stage if the following conditions are satisfied gt The condition on TEEG justifying the increase of THER continues for at least 3 minutes gt The chilled water output temperature TSEG is greater than the set point gt The number of compressors in service is equal to the thermostat value LENNOX CLIMATIGC TM user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 5 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 The value of this instruction depends on the type of regulation required by the customer and the state of the logic input associated with the CHPCONS variable Option regulation with CHPCONS Value of CONSREG gradien Not selected oe CONSEA Selected i G l CONSEA see page 16 CONSCALC f TEA DELTAT lt gt Desired temperature difference between water input and output C ENCL lt gt Operati
60. ious 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 increase contrast e Press successively on key B to reduce contrast e Key Cis used to restore the contrast setting by default see 2 VDU CONSOLE gt KP07 LENNOX CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 58 KP07 VDU CONSOLE 2 GENERAL TREE STRUCTURE OF SCREENS LS Access to operating states On Off switches of the circuits machine and for circuits I Cip E Operating PEER Operating state Operating state state circuit 1 of the unit chilled water pumps Password enn iH Access to settings Refrigeration On off primary circuit chilled water Access to Access to circuit machines variables variables Operating states of secondary chilled water pumps Fan control parameters On off secondary chilled water pumps Fan low Operating states speed high speed Hot water control parameters pumps Parameters for p regulation with On Off switch I gradient Hot water pumps Options For units with more than one refrigeration circuit branches C2 C3 and C4corresponding to operating states for circuits no 2 3 and 4 are actives LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E ep KP07 VD
61. itch 5 08 mm J1 to J8 The relays have a 12 V power supply 2 5 0 10 V outputs Analogue outputs associated with KP11 daughter cards are used for variable control by 0 10 V signal The equipment controlled may be a damper motor or a modulating valve The 0 10 V digital outputs associated with KP09 daughter cards can be used for on off control with frequent state change and via static relays of components such as solenoid valves or heating resistors Connection to KPO9 or KP11 cards is by 2 point plug in connectors pitch 3 81 mm J17 amp J21 2 6 Link with extension cards This link is based on an IC bus connecting the KP01 to KP03 KP04 and KP08 extensions Connection is by RJ45 type connectors J14 amp J15 2 Analogue bus This link is used to connect the KP01 to KP05 extensions Connection is by an HE10 14 point plug in connector pitch 2 54 mm J19 LENNGX CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 83 CLIMATIC CARD gt KPO1 2 8 Inter KP01 chaining link The KP01s communicate with each other by an asynchronous serial link which uses 3 signals Transmission reception Reference mass Power supply The different KP01 cards are connected to each other via 3 point plug in connectors pitch 3 81 mm A yellow flashing led signals correct dialogue between the KP01 LD4 2 9 Serial link All KPO1 cards have 2 communication ports named COM B and COM C respectively
62. le 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 The last start up of COMPmn was at least 6 minutes earlier 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 THER PP PPE PEEP E EP PEEP Er Gees ERERIEIECCERCRRELIT eme FIT eae EEEE EEE 23 y 4 a 3 2 313 4 4 In r n en O all Ce Q E O O LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E E CONTROL OF CAPACITY REDUCTIONS FOR COLD REGULATION To adjust the chilled 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
63. mum 10 mA current at 10V Connection is by 2 x 12 point plug in connectors pitch 3 81 mm JEL1 amp JEL2 There is one shared point for 2 inputs Wiring of machine equipment to a logic input can use unscreened cable However screened cable must be used for connection to the terminals provided for the customer s use The state of each of the 16 inputs is shown by a yellow led LD1 to LD16 3 ADDRESSING CONFIGURATION SW1 Possible address numbers are 1 2 or 3 Two KP03 connected to the same KP01 cannot have the same address For each address the position of the jumper to be used is shown on the card LENNOX CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E es EXTENSION 16 LOGIC INPUTS gt KP03 4 CARD DIAGRAM VRF GND ctg vec Beete IBELL c5 KP 3 Q v Ge PTS ete gt A a TT s 123 q BS ii z Cu ma Rg c7 NES Ohi Eet aC en Diese eat CH Cafi rale Ei CTT CJ AS m Hi ZC Tie K 2 3 4 5 6 7 S g 18 Wt 12 13 14 15 E LD LDZ LD3 LD4 LDS L LD LD8 LDI3 LD LD9 LDI LDN LDIZ LD LD6 P7 P8 PI J1 J2 RJ45 connectors for SC Bus J3 Connector 12Vac external power supply J4 J7 Locations for connection to earth using FASTON 6 35 earth lugs JEL1 JEL2 Logic input connectors LD1 LD16 LED status of 16 inputs LD17 LED presence of power on I2C bus LD18 LED presence of 12Vac PT1 Earth PT2 Vcc1 5V PT3 Vec2 11V isolated PT4 OV isolated
64. must be greater than TEGI 2 C PENTEF lt gt Regulation gradient The gradient is calculated using the following equation PENTEF 100 x CONSE CONSEG CONSAM CONSA 15 C CONSEG o aes Ee PENTEF CONSEI a ee TEGI 2 O C Geet een e CONSA CONSAM TEA CONSCALC CONSEG PENTEF x TEA CONSA 100 Example of regulation With CONSA 20 CONSEG 10 CONSAM 95 C BEE REN mn gt PENTEF 26 7 LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E up HOT REGULATION WITH GRADIENT Function 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 CONSCALC is calculated according to the following parameters TEA lt gt Outside air temperature C CONSAI 1st reference air temperature selected C CONSA 2nd reference air temperature selected C TECS gt Maximum hot water temperature instruction C CONSEM lt gt Required water instruction for the air instruction CONSAI C CONSEM must be less than TECS 2 C CONSEC lt gt Required water instruction for the air instruction CONSA C CONSEC must be greater than 25 C PENTEC Regulation gradient The gradient is calculated using the following equation PENTEC 100 x CONSEC CONSEM CONSA CONSAI
65. nce with its instructions Idle time is defined by 4 instructions start instructions are included in the idle period while end instructions are excluded HDEBUTI Start time of daily idle 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 If MAARI 0 idle times are inhibited If MAARI 1 idle times are applied 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 CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E EI 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 0 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 switc
66. ng Freeze failure counters TOGELn 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 or suction sensor fault Replace the sensor Wiring fault or disconnection of the sensor Check sensor connection Water flow in the evaporator insufficient Check flow and setting of flow controller LENNGX CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 33 INSUFFICIENT SUPERHEATING Logical variable DSURFn Incident codes KP02 n4 KPO7 icon let 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 C With TASPn Suction temperature on circuit n C TBPn Evaporation temperature on circuit n C TEEG Chilled water intake temperature C Immediate halt of circuit n The fault is displayed on the screen The remote fault report is delayed for 6 minutes Resetting Fault resetting is manual Trouble 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 C
67. ng 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 Ap Compressor start up Compressor stop and DELTAT 5 C TEEC C EN 125 75 3054 40 150 45 Note The thermostat is only authorised to increase by a stage if the following conditions are satisfied gt The condition on TEEC justifying the increase of THER continues for at least 3 minutes gt The hot water output temperature TSEC less than the set point gt The number of compressors in service is equal to the thermostat value LENNOX CLIMATIGC TM user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 6 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 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 COMP mn 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 availab
68. o back to the first screen in the tree structure c to d summary e LAST SCREEN key Return to the last screen selected OD MODIFICATION key Pressing this key activates modification mode see 8 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 a Selection of the variable to be modified Selection of the number to be modified Press the key successively to move the ET 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 0 to 9 Confirmation of the current modification LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _57 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 KP01 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 lf a modification is not confirmed the variable remains at its prev
69. o nearest 0 1 C 21 6 2 4 3 Pressures The pressures are shown in bar to nearest 0 1 bar 18 3 bar 2 4 4 Other analogue values Values without signs 2 4 5 Fault mode 0 amp OFF Discharge temperature too high on compressor lt 1oncircuit 2 LENNOX CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 52 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 2 5 Specific displays 2 5 1 Application release When the console is switched on the computer application release number is displayed amp release 1 0 example 2 5 2 VDU test 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 2 5 2 KP02 CPU communication fault An absence of dialogue between the KP02 console and the CPU card is signalled by the permanent following message lt communication problem 3 OPERATING MODES 4 modes are available 1 VARIABLES mode is used to read the 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 T
70. on is not taken into account if the anti freeze pump start up option has been selected and if the outside air temperature is less than 2 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 second pump automatically takes over if it 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 LENNGX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E A 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 gt Chilled water input temperature C CONSREG Active instruction for output of chilled water C The value of this instruction depends on the type of regulation required by the customer and the state of the logic input associated with the CHPCONS variable Option regulation with CHPCONS Value of CONSREG gradien Not selected 0 CONSEA Selected o CONSEA see page 15 CONSCALC f TEA DELTAT lt gt Desired temperature difference between water input and output C ENCL lt gt Operating differential for a regulation stage C T
71. operating states Presence of a general alarm on Number of controller in the machine communication with display unit This screen gives access to the operating states of the refrigeration circuits pumps and machine 3 4 Operating states of refrigeration circuits Operating states of circuit compressors displayed on off at full power on at reduced setting H DG 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 CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 61 KP07 VDU CONSOLE 3 5 Refrigeration diagrams 3 5 1 Air condensation units Discharge temperature on compressor no 2 if applicable Condensation pressure Condensation temperature Discharge temperature on compressor no 1 Ambient air temperature DN Air intake temperature Evaporation Evaporation pressure temperature Temperature of chilled water output Temperature of chilled water input Operating states of circuit compressors 3 5 2 Water cooled condensers Hot water output Hot water input temperature temperature l d Condensation pressure Condensation 360 5 AA TA 37 4 Discharge temperature 1 temperature on compressor 28 7 dh emm 28 5 A sl 22 lt gt i Operating state of Evaporation ni compressor temperature 5 en
72. ote fault report is delayed for 6 minutes Resetting The machine restarts automatically 20 seconds after the fault has been cleared and the CLIMATIC has restarted the pump The fault is cleared automatically once the pump circuit breaker is reset The fault is cleared automatically once the pump circuit breaker is reset Trouble shooting Bad connection or connections too tight Check connections Circuit breaker wrongly set Set the protection in accordance with the rated current for the pump LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _47 REMOTE INSTRUCTION UNDETECTED A Logical variable DCONS Incident codes KP02 95 KPO7 icon di Ge dOmeA The unit should be regulated to the water instruction sent remotely by the customer SGLCONS 1 but the signal received is incorrect TCONS lt 25 C The machine is not stopped and is regulated to its own water instruction 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 cleared 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 CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 48 TEMPERATURE OF FREE COOLING OUTSIDE RANGE FL Logical variable
73. ow speed As soon as PTHPn goes back below HPGV HPDIFF all fans running at high speed are switched back to low speed gt Stopping fans If PTHPn becomes lower than HPBAS THVn is reduced by one stage As long as PTHPn remains below HPBAS THVn continues to be reduced by 1 every TEMPOV time interval Notes gt In Low speed high speed mode all fans on the machine must be dual speed gt In certain cases in particular on machines with 4 cooling circuits the lack of available relay outputs on the CLIMATIC means that we have had to modify the regulation described above as soon as high pressure exceeds Hphigh speed fans on the same circuit are all switched to high speed at the same time instead of one after another LENNOX CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 18 FREE COOLING To ensure refrigeration whilst optimising the use of free cooling thus limiting electrical consumption to a minimum e Free cooling outline diagram TEEG TEEGFC V3VFC Va y lt ee E T I Tfree cooling fan SCH f TEA t Sg evaporator NN ffree cooling unit Be TSEG A re TEEGFC Temperature of chilled water input to free cooling C TEEG lt Temperature of chilled water input to the evaporator C TSEG gt Chilled water output temperature C TEA lt gt Outside air temperature C V3VFC Three way free coolin
74. port 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 90 C 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 CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 42 INTERNAL PROTECTION TRIPPED Logical variable DPINTmn Incident codes KP02 mn7 KPO7 icon D Description Semi hermetic compressors reciprocating and screw type 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 0 This shows that the internal protection on the compressor has been tripped 0 C R22 amp R407C R134a amp R404A Immediate halt of compressor mn The fault is displayed on the screen The remote fault report is delayed fo
75. r 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 CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _97 INSUFFIGIENT FLOW OF HOT WATER tt Logical variable DFSC Incident codes KP02 4 KPO7 icon The flow switch FSC detects insufficient flow insufficient in the condenser for over 3 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 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 CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 98 ABSENCE OF 230V SUPPLY WITH BACKUP Au Logical variable DPT230V Incident codes KP02 7 KPO7
76. r 6 minutes Note switched off the fault is not memorised Resetting Compressor mn can only be restarted after re closing the internal protection and manual reset Note The fault is cleared automatically every time the machine is switched on 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 CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E A9 MISCELLANEOUS FAULTS CONTENTS Page INSUFFICIENT FLOW ESTABLISHED BY THE PUMP 45 FANS CIRCUIT BREAKERS TRIEDEN 46 PUMP CIRCUIT BREAKER TRIPPED rurnernnrrnrennrenerennrennrennrenernne 47 REMOTE INSTRUCTION UNDETECTED ce eeeeeeeeeeeeee es 48 TEMPERATURE OF FREE COOLING OUTSIDE RANGE 49 DIALOGUE BETWEEN CPU AND KP07 INTERRUPTED 50 LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E Au INSUFFICIENT FLOW ESTABLISHED BY THE PUMP A Logical variable DSDEBk Incident codes KP02 81 Pump 1 KB Q7 icon 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
77. ress For each address the jumper position to be used is shown on the card LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E o EXTENSION 8 ENTREES ANALOGUE gt KP05 4 CARD DIAGRAM DC ANA KP S O Ut Type d entree Bus Swi 0 2 mA Analogique Ri7 RIB A9 B n D R22 R23 R24 R29 M L QUAD Fr Se LDI J3 l tel tels H Le kk ev LJ sn Fe J1 JEA Analogue input connector J2 Analogue bus connector J3 18 Vdc power supply connector LD1 Led presence of 5 V power SW1 to SW8 Switches for configuration of 0 20 mA or CTN inputs SWO Switch for configuration of the card address LENNOX CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 92 EXTENSION 8 RELAYS gt KP08 1 PRESENTATION The KP08 card allows the CLIMATIC to control 8 additional output relays These actuators are used for on off control of the principal electrical equipment on the machine such as compressors fans solenoid valves and pumps They can also be used to transmit logical information from hard contacts mounted on terminals Up to 4 KP08 extensions can be connected to the same KP01 offering a maximum capacity of 8 4 x 8 40 on off outputs 2 EXTERNAL LINKS 2 1 Link with KP01 and other KP08s Based on an TC bus this link uses 2 RJ45 connectors J9 amp J10 They ensure the power supply to the KP08 from the KPO1 A green led in
78. rs 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 logging 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 Lo G1 G2 G3 G4 G4 G1 G2 G3 G3 G4 G1 G2 G2 G3 G4 G1 In order to level out operating times for the different units and if they are all available PRIG 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 CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 923
79. s installed on circuit n are either in short circuit broken or disconnected Sensor or detector involved Condition for occurrence of fault Suction temperature sensor TASPn lt 40 C Internal sensor on electronic expansion 1000 U lt RDETn lt 50 U Low pressure detector BPn lt 0 5 bar High pressure detector HPn lt 0 5 bar Note All these sensors and detectors are not necessarily present on the same machine Immediate halt of circuit n 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 Replace the element Wiring fault or disconnection of a sensor or detector Check sensor and detector connections LENNOX CLIMATIC II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 36 EXPANSION VALVE OPENING INCORRECT A lL Logical variable DCDETn Incident codes KP02 n7 KP07 icon BM 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 The fault is displ
80. st slugging The regulation described below is specific to electrical expansion valves with thermal motors make Danfoss and type TQ The expansion valve is controlled by Proportional Integral Derivative logic The ideal theoretical opening RDET An 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 The opening to be achieved RDETAn depends on the following parameters SURCHD lt gt Superheat requested The value of SURCHD is set to 5 C for water regulation instructions greater than 5 C and to 8 C for water instructions less than 5 C TASPn TBPn Superheat measured on circuit n C RDETn lt Opening measured on expansion valve C l e A and the difference at time t between the measured superheat and the instruction Aand TASPn TBPn SURCHD Integral action Derivative AT I REDTAn RDETn Kp Aand Ki Ae Kd A Ae Ae 1 t ni t nd Proportional action Order issued to expansion valve There are 3 possible cases gt If RDETAn lt RDETn the expansion valve must be heated DE Tn 1 to open it to the desired opening gt If RDETAn gt 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
81. struction Chilled water temperature at the input of free cooling outside authorised range Dialogue interrupted between KP07 console and a CPU card on the network KP07 KPO1 dialogue re established 4 6 On off settings and instructions Ci dH C2 dH C 4H Lan LENNOX 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 Chilled water instruction calculated according to air gradient CONSCALC CLIMATIC user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 79 KP07 VDU CONSOLE afa ER First hot water setting CONSEA EE Second hot water setting CONSEB gt Hot water recuperation instruction CONSECR It i LS Desired temperature difference as an absolute value between processed water input and output DELTAT MINI N LS Minimum chilled water temperature TEGI me pe Maximum hot water temperature TECS Se ca Minimum evaporation temperature TBP FO db HP limit for switching fans from low to high speed HPGV L So l go Pressure differential for switching fans from high to low speed HPDIFF Maximum num
82. tch Led presence of 12 Vac SW5 Analogue input config switches Led presence of chaining dialogue LENNOX CLIMAT IC user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E 86 EXTENSION 16 LOGIC INPUTS gt KP03 1 PRESENTATION The KPO03 card allows connection of 16 additional hard contacts to the CLIMATIC These are mainly from control devices installed on the machine such as pressostats magneto thermal circuit breakers flow controller etc It is possible to connect up to 3 KP03 extensions to the same KP01 giving a maximum capacity of 8 3 x 16 56 logic inputs 2 EXTERNAL LINKS 2 1 Power supply The 12 Vac power supply to the KPO3 cards is external It is provided by the single transformer which generates the 12 V power supply for all CLIMATIC CPU and extension cards see of the technical data CLIMATIC CARD gt KP01 The 12 V supply to the KPO3 is parasitic since it is also the source of power for all the hard contacts which are connected to the logic inputs unscreened cables Connection of the power supply is via a 2 point plug in connector pitch 5 08 mm J3 The presence of power on the KP03 is shown by a green led LD18 2 2 Link with the KP01 and other KP03s This link is based on an I C bus and uses 2 RJ45 type connectors J1 amp J2 A green led signals the presence of power on the DC bus from the KPO1 LD17 2 3 Logic inputs Each input accepts maxi
83. ts requiring frequent on off cycles e g solenoid valves heating resistors etc A CPU may receive at the most 2 KP09 or KP11 cards 2 POSITIONING ON THE KP01 I lo O 04154 2 3 a uw ag CC OO Tam in i 0 rs pog r 10 EZY gy ZL Gu Hid ar cag D id DAS CD Lees D99 IM mY Ooo va nv EB b l zim 6 ti a m ef Ap HN a el LU J Sei zx aJ D fir E r l ABI 32 el KI A LI dr Ce Lal Jun TaN me T o E S z I Eg TT Ki H lt E 2 TOTmmsagerap SI CR Ve ke i EIT J16 J20 Connectors for KP09 J17 J21 Connectors of 2 outputs digital 0 10 V Caution when installing the KP10 module check compliance with orientation of the circuit as indicated by the markings printed on the KP01 LENNGX CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 95 EXTENSION POWER SUPPLY 18VDC gt KP10 1 PRESENTATION The KP10 extension is pr n in the form of small plug in card positioned on the KPO1 It supplies power to the 0 20mA sensors connected to the KP01 and to KP05 extensions see CLIMATIC CARD gt KP01 and EXTENSION 8 ANALOGUE INPUTS gt KP05 2 POSITIONING ON THE KPO1 Q IX aco Hamn SSC BEN el HUT g wsh V d 10451 an Ei joe mlt 80 dn OG Hioc 0 d SCH aC U e DI a DI a r E m x f One Lees las H be
84. un EI CG zin 613 a DH W719 n ef Ap ZU el LU J z zx aJ cl An E r LI Ap 39 D99 IN FO TY Ooo J23 Connector for KP10 J24 Connector 18 Vdc power supply output Caution when installing the KP10 module check compliance with orientation of the circuit as indicated by the markings printed on the KPO1 LENNOX CLIMATICTM II user Manual Liquid chillers Ref CLIMATIC CHILLERS V2 4 March 2001 E _ 96 FEMALE CARD ANALOGUE INPUT gt KP11 1 PRESENTATION The KP11 extension is presen in the form of small plug in card positioned on the KPO1 unit The KP11 delivers 0 10 Vdc 10 mA analogue power for automatic control of modulating devices such as the motors for dampers or proportional valves A CPU may receive 2 KP11 cards at the most 2 POSITIONING ON THE KPO1 I lo O 0154 2 3 a uw D ae ae wsh V d 1051 em er ee Er Ze l Dr i Bet HC g d i Hid DWS DD cag D H 0 6 0 ifo oo L o ma an Lees 4x3 Wi SS H L un Vi zim wa 0 SY y3 7 ef Ap ZU i el LU J k zx aly cl An E r l ESE IN mY 0 09 gt ke KI Ai S _ GL ex gt Sr rcfc 7 ODC UD D O00 00 0 7 mon A Tr H LI lt EE 2 TTAR ICE fe g z J16 J20 Connectors for KP11 J17 J21 Connectors for analogue outputs 0 10 V Caution when installing the KP11module check compliance with orientation of the circuit as indi

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CLIMATIC™ USER MANUAL