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V2.2

-00

LOW PRESSURE INSUFFICIENT

Logical variable :

DBPn

Incident codes KP02 :

KP07 icon :

Description

Case

: No compressor on circuit n is working. The liquid valve has been open for 2 minutes, but low pressure

remains lower than safety limits.

Case

: A compressor on circuit n has been operating for more than 2 minutes. The liquid valve is open and

the expansion valve bypass valve (if applicable) has been closed for 1 minute, but low pressure is
insufficient.

Reminder

: The units with an expansion valve bypass valve are those fitted with the "all seasons"

option and thermostatic expansion valves.

Case

: 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

Action

If 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

Case

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

Solution

Insufficient circuit load.
Malfunction of the liquid solenoid valve.
Malfunction of expansion valve.
Dehydrator clogged.

Complete the load.
Check solenoid valve operation.
Check expansion valve operation.
Change dehydrator.

Содержание CLIMATIC II

Страница 1: ...CLIMATIC USER MANUAL CHILLERS V 2 2...

Страница 2: ...R f RFL V2 2 00 1 GENERAL CONTENTS Page CONTROL AND REGULATION 2 OPTIONS 15 MACHINE FAULTS 22 CIRCUIT FAULTS 29 COMPRESSOR FAULTS 36 MISCELLANEOUS FAULTS 42 KP02 DIGITAL CONSOLE 50 VISUAL DISPLAY UNI...

Страница 3: ...ERMOSTAT 6 COLD REGULATION WITH GRADIENT 7 HOT REGULATION WITH GRADIENT 8 CONTROL OF COMPRESSORS 9 CONTROL OF CAPACITY REDUCTIONS FOR COLD REGULATION 10 CONTROL OF CAPACITY REDUCTIONS FOR HOT REGULATI...

Страница 4: ...NI 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 provid...

Страница 5: ...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...

Страница 6: ...CONS 1 CONSREG CONSEB For regulation with air gradient see page 7 DELTAT Desired temperature difference between water input and output C ENCL Operating differential for a regulation stage C This varia...

Страница 7: ...S 1 CONSREG CONSEB For regulation with air gradient see page 7 DELTAT Desired temperature difference between water input and output C ENCL Operating differential for a regulation stage C This variable...

Страница 8: ...temperature selected C TEGI Minimum chilled water temperature instruction C CONSEG Required water instruction for air instruction CONSA C CONSEG must be lower than 15 C CONSEI Required water instruct...

Страница 9: ...ure selected C TECS Maximum hot water temperature instruction C CONSEM Required water instruction for the air instruction CONSAI C CONSEM must be less than TECS 2 C CONSEC Required water instruction f...

Страница 10: ...le DISPOmn 1 The regulation thermostat THER is greater than the number of compressors in service COMPmn is the compressor defined by the FIFO rule as the next one to start up COMPmn is not in anti sho...

Страница 11: ...ns to be put into operation is defined by the thermostat THERR in accordance with the following 2 parameters TSEC Hot water output temperature C CONSREG Chilled water instruction C As soon as TSEC bec...

Страница 12: ...ion is defined by the thermostat THERR in accordance with the following 2 parameters TSEC Hot water output temperature C CONSREG Chilled water instruction C As soon as TSEC becomes greater than CONSRE...

Страница 13: ...circuit n C RDETn Opening measured on expansion valve C I e et the difference at time t between the measured superheat and the instruction et TASPn TBPn SURCHD REDTAn RDETn Kp et Ki t ni t t e Kd t nd...

Страница 14: ...s 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...

Страница 15: ...is greater than 90 C or the economy valve ECOmn is opened Economy valve Function To increase refrigerating capacity by increased sub cooling of the liquid refrigerant output from the condenser Descrip...

Страница 16: ...V2 2 00 15 OPTIONS CONTENTS Page FREE COOLING 16 HEAT RECOVERY 18 MANAGEMENT OF UNITS IN PARALLEL 19...

Страница 17: ...lation instruction CONSREG TEA TEEGFC 2 C The chilled water circulation pump has been in operation for at least 30 seconds The three way valve has remained off for 3 minutes The free cooling water inp...

Страница 18: ...ice the free cooling thermostat is forced to its maximum The free cooling fan n VENTFCn operates if THERFC n and V3VFC is in service F Authorisation of compressor start up Authorisation of compressor...

Страница 19: ...r 15 seconds and TSECR CONSEH RECUP remains at 1 as long as FSR has not been off for over 15 seconds and TSECR CONSEH 2 C F Control of air condenser fans On switching to recovery mode the ventilation...

Страница 20: ...y without chaining F Outline hydraulics diagram case of chilled water production F Thermostat on units The thermostat THERG controls switching on and off of the different installation units Gn THERG i...

Страница 21: ...ch 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 sa...

Страница 22: ...s automatically every Monday at 6 pm which levels out operating times between the different units DIFETG Differentail between units C DIFETG is an instruction set on each machine In the case of an ins...

Страница 23: ...Page TEMPERATURES OF CHILLED WATER OUTSIDE RANGE 23 HOT WATER TEMPERATURES OUTSIDE RANGE 24 INSUFFICIENT FLOW OF CHILLED WATER 25 INSUFFICIENT FLOW OF HOT WATER 26 ABSENCE OF 230V SUPPLY WITH BACKUP...

Страница 24: ...rature C TSEG Chilled water output temperature C TEGI Minimum chilled water temperature for evaporator C Action F Immediate machine halt F The fault is displayed on the screen F The remote fault repor...

Страница 25: ...TSEC Hot water output temperature C TECS Maximum hot water temperature at condenser C Action F Immediate machine halt F The fault is displayed on the screen F The remote fault report is delayed for 6...

Страница 26: ...F The fault is displayed on the screen F 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 s...

Страница 27: ...halt F The fault is displayed on the screen F 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...

Страница 28: ...longer fed Action F Immediate machine halt F The fault is displayed on the screen F The remote fault report is delayed for 6 minutes Resetting The machine restarts automatically 20 seconds after the...

Страница 29: ...he remote fault report is delayed for 6 minutes Resetting The machine can only be restarted after manual resetting and the correct re establishment of phases Trouble shooting Solution Fault appears th...

Страница 30: ...29 CIRCUITS FAULTS CONTENTS Page LOW PRESSURE INSUFFICIENT 30 EVAPORATOR FREEZING 31 INSUFFICIENT SUPERHEATING 32 VACUUM SUCCION FAILURE 33 SENSOR OR DETECTOR FAULTS 34 EXPANSION VALVE OPENING INCORR...

Страница 31: ...sors in service on the circuit have been operating for at least 2 minutes and insufficient low pressure is detected Action F If circuit n is not in operation start up has not been authorised If it is...

Страница 32: ...Suction temperature for circuit n C Action F Immediate halt of circuit n F The fault is displayed on the screen F The remote fault report is delayed for 6 minutes Resetting Cas For the first fault re...

Страница 33: ...ast 2 minutes TASPn TEEG 3 C TASPn TBPn 2 C With TASPn Suction temperature on circuit n C TBPn Evaporation temperature on circuit n C TEEG Chilled water intake temperature C Action F Immediate halt of...

Страница 34: ...The fault is displayed on the screen F 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...

Страница 35: ...000 U RDETn 50 U Low pressure detector BPn 0 5 bars High pressure detector HPn 0 5 bars Note All these sensors and detectors are not necessarily present on the same machine Action F Immediate halt of...

Страница 36: ...lue calculated for start up of the compressor has still not been reached Action F Circuit n start up is not authorised F The fault is displayed on the screen F The remote fault report is delayed for 6...

Страница 37: ...V2 2 00 36 COMPRESSOR FAULTS CONTENTS Page COMPRESSOR CUT OUT SWITCH TRIPPED 37 OIL PRESSURE INSUFFICIENT 38 EXCESS HIGH PRESSURE 39 DISCHARGE TEMPERATURE TOO HIGH 40 INTERNAL PROTECTION TRIPPED 41...

Страница 38: ...halt of compressor mn F The fault is displayed on the screen F The remote fault report is delayed for 6 minutes Resetting Compressor mn can only be restarted after engagement of the cut out switch an...

Страница 39: ...iggering point for over 3 minutes Action F Immediate halt of compressor mn F The fault is displayed on the screen F The remote fault report is delayed for 6 minutes Resetting The first fault is reset...

Страница 40: ...r 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...

Страница 41: ...f 30 minutes on condition that REFmn has dropped below the maximum After this compressor mn can only be restarted by manual resetting this reset can only be processed 30 minutes after generation of th...

Страница 42: ...on the compressor has been tripped Action F Immediate halt of compressor mn F The fault is displayed on the screen F The remote fault report is delayed for 6 minutes Note switched off the fault is no...

Страница 43: ...DIALOGUE INTERRUPTED 43 INSUFFICIENT FLOW ESTABLISHED BY THE PUMP 44 FANS CIRCUIT BREAKERS TRIPPED 45 PUMP CIRCUIT BREAKER TRIPPED 46 REMOTE INSTRUCTION UNDETECTED 47 TEMPERATURE OF FREE COOLING OUTSI...

Страница 44: ...initialisation of cards 3 attempts F The fault is displayed on the screen Resetting Automatic resetting of the fault 3 minutes after the link between all cards is restored Trouble shooting Solution W...

Страница 45: ...or pumps page 4 F The fault is displayed on the screen F The remote fault report is delayed for 6 minutes Resetting Case The unit has no pump C2POMPE 0 and the flow switch is closed without POMPEk hav...

Страница 46: ...r fans are tripped ELECV 0 Action F The fault is displayed on the screen F The remote fault report is delayed for 6 minutes Resetting The fault is reset automatically once all the fan circuit breakers...

Страница 47: ...f evaporator pumps page 4 F The fault is displayed on the screen F The remote fault report is delayed for 6 minutes Case Pump k is not in service F The fault is displayed on the screen F The remote fa...

Страница 48: ...received is incorrect TCONS 25 C Action F The machine is not stopped and is regulated to its own water instruction F The fault is displayed on the screen F The remote fault report is delayed for 6 min...

Страница 49: ...C 65 C Action F Immediate halt of free cooling free cooling fans stop and the 3 way valve completely by pass the coils F The fault is displayed on the screen F The remote fault report is delayed for 6...

Страница 50: ...connected to it Action F Regular attempts to restore communication F The fault is displayed on the screen F The remote fault report is delayed for 6 minutes Resetting The fault is reset automatically...

Страница 51: ...ion is not established a message indicating the communication problem is displayed see II 5 c The console will then make regular attempts to reconnect Data transmission speed is 1200 baud in 8 bit for...

Страница 52: ...1 ON 0 OFF II 4 b Temp ratures The temperatures are displayed in C to nearest 0 1 C 21 6 C 105 8 C II 4 c Pressures The pressures are shown in bar to nearest 0 1 bar 18 3 bars II 4 d Other analogue va...

Страница 53: ...ing on the 3 keys A M and simultaneously Correct operation of the VDU is shown as follows II 5 c KP02 CPU communication fault An absence of dialogue between the KP02 console and the CPU card is signal...

Страница 54: ...eys 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 F...

Страница 55: ...he 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 Pressing key A saves the value enter...

Страница 56: ...variables The number of controllers connected is declared in the application program for the VDU If a single CPU is connected its card number is also declared The controller VDU link is serial type an...

Страница 57: ...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 PAGE DOWN key Go to t...

Страница 58: ...on circuits To exit from modification mode and return to the active screen press MODIFICATION key Notes During the modification phase the screen is no longer updated If a modification is not confirme...

Страница 59: ...machines variables Fault log Analogue inputs Logic inputs Variables diverses TOR outputs Compteurs de pannes Logic inputs TOR other outputs Fault counters Operating state Circuit 1 Access to circuit v...

Страница 60: ...ta 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 III 2 Wa...

Страница 61: ...ating states of refrigeration circuits Presence of a general alarm on the machine Number of controller in communication with display unit Operating states of circuit compressors displayed on off at fu...

Страница 62: ...emperature on compressor no 1 Operating states of circuit compressors Air intake temperature Evaporation pressure Temperature of chilled water input Temperature of chilled water output Condensation pr...

Страница 63: ...ers TOR output and other variables describing the selected refrigeration circuit Each variable is identified by its mnemonic III 6 a Logic inputs This screen shows the state of all the logic inputs as...

Страница 64: ...described in operating states for circuits see III 4 This screen also displays significant calculation variables for the circuit such as the anti short cycle for compressors III 7 Pump operating stat...

Страница 65: ...cuit Each variable is identified by its mnemonic III 9 a Analogue inputs This screen contains the temperatures associated with specific options e g temperature of hot water output from heat recovery t...

Страница 66: ...lready described in operating states for circuits and pumps III 9 d Fault counters Faults and fault counters associated with specific options appear on this screen III 9 e other variables This screen...

Страница 67: ...played 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 modif...

Страница 68: ...by a password a modifiable variable consisting of 5 figures This is entered via modification mode Entry of the password followed by validation activates key A Pressing key A displays the screen below...

Страница 69: ...milar screen for heat pumps III 12 b Control parameters for condenser ventilation Temperature difference on chilled water T input T output Minimum chilled water temperature Chilled water setting A Chi...

Страница 70: ...a liquid cooler Desired water setting for the 1st air temperature selected CONSA Desired water setting for the 2 nd air temperature selected CONSAM Minimum chilled water temperature Calculated chilled...

Страница 71: ...ess 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...

Страница 72: ...trols and instructions Selection of the variable to be modified see I 2 Selection of figure to be modified see I 2 Incrementation of figure from 0 to 9 see I 2 Validation of current modification see I...

Страница 73: ...cess to the different tables of variables Analogue inputs other than those shown on refrigeration diagrams Logic inputs TOR outputs TOR outputs and other variables associated with selected refrigerati...

Страница 74: ...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...

Страница 75: ...acity 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 Com...

Страница 76: ...ufficient Absence of power on 230 V electrical supply to the machine Incorrect connection of 3 phases of general electrical supply to the machine Low pressure insufficient Evaporator freezing Superhea...

Страница 77: ...er 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 pre...

Страница 78: ...hilled water setting CONSEA Second chilled water setting CONSEB Active chilled water setting measured variable CONSREG First hot water setting CONSEA Second hot water setting CONSEB Active hot water s...

Страница 79: ...CARD KP01 79 EXTENSION 16 LOGIC INPUTS KP03 83 EXTENSION ANALOGUE OUTPUT KP04 84 EXTENSION 8 ANALOGUE INPUTS KP05 85 EXTENSION 8 RELAYS KP08 86 EXTENSION 18VDC SUPPLY KP10 87 FEMALE CARD ANALOGUE OUTP...

Страница 80: ...lementary logic outputs KP08 card F 2 asynchronous serial links for dialogue with a micro computer or a VDU console 1200 2400 or 4800 baud a basic digital console KP02 and or a VDU console with LCD di...

Страница 81: ...will not work if the battery is not in position on F SW5 1 SW5 8 These switches are used to configure the type of analogue input CTN 0 20mA 0 5V Caution every addition of a KP05 extension 1 to 3 caus...

Страница 82: ...power on Link PC GTC or VDU console COM B Optional KP10 card 18Vdc supply 4AT fuse LED s dialogue presence COM B and COM C Ribbon cable connecting the two cards 160mAT fuse Battery configuration on o...

Страница 83: ...3 81 for 2 analogue outputs J18 J22 4 point removable pin connectors pitch 3 81 for 2 serial links J24 2 point removable pin connectors pitch 3 81 for 18Vdc supply J25 12 point removable pin connector...

Страница 84: ...tors pitch 3 81 for logic inputs J4 J7 Locations for connection to earth using FASTON 6 35 earth lugs LD1 LD16 LED status of 16 inputs LD17 LED presence of power from KP01 LD18 LED presence of 12Vac i...

Страница 85: ...external 12Vac supply J4 JAS 2 point removable pin connector pitch 3 81 for analogue output 0 10V SW1 SW2 Switches for configuration of the card address The position of jumpers for each configuration...

Страница 86: ...5 to 8 are not equipped to receive a 0 20mA signal In fact resistors R10 to R14 249 0 1 are not fitted in the original configuration Key J1 JEA 12 point removable pin connector pitch 3 81 for analogue...

Страница 87: ...ble pin connector pitch 5 08 for double throw contacts for relays RL1 to RL8 J9 J10 RJ45 connector for I C Bus LD1 LED presence of power from KP01 LD2 LED presence of I C dialogue SW1 SW2 Switches for...

Страница 88: ...resented in the form of a small plug in card positioned on the main KP01unit and designed to supply detectors type 0 20mA l Precautions When installing the module take care to comply with the circuit...

Страница 89: ...l plug in card positioned on the main KP01unit It supplies analogue voltage 0 10Vdc 10mA A CPU may receive 2 cards KP11 at the most l Precautions When installing the module take care to comply with th...

Страница 90: ...V2 2 00 89 DIGITAL CONSOLE KP02 Internal wiring External wiring Keyboard ribbon cable Earth ferrule Cable earth connection Keyboard earth connection TD RD...

Страница 91: ...fuse 12Vac supply Battery P 68HC16 Screen contrast setting by default Command switch for back lighting Keyboard connector Configuration switches for external internal supply TD RD Front face Connecti...

Страница 92: ...face by the nut provided for this purpose Since there are joints between the front face and console base as well as between the base and the door of the electrical cabinet two bonding straps are requi...

Страница 93: ...V2 2 00 92...

Страница 94: ...noxbenelux com LENNOX POLSKA SP z o o t l 48 22 832 26 61 fax 48 22 832 26 62 e mail lennoxpolska inetia pl LENNOX CLIMATIZA AO LDA tel 351 2 999 84 60 fax 351 2 999 84 68 LENNOX DISTRIBUTION MOSCOU t...

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