cls-clh electronic control
Contents
1. Once the set points have been modified you can go back to the first level by holding both keys down for 2 seconds as described in the paragraph User interface ITELCO CLIMA 4 To display other useful temperatures go to level as described above and then scroll the display until to appears then repeat the procedure so as to reach the lower level At this point scroll the display until 101 t02 103 appears If you go to the next level while 102 appears and the leaving water temperature is displayed while if you repeat the operation when tp03 appears the coil s surface temperature is displayed 5 The unit is shop preset for the summer winter switch over through the keyboard If a summer winter switch over remote contact is provided switch the H49 software parameter to reconfigure the unit accordingly To do this press the two keys at the same time to go to the upper level and then scroll the display until Par appears Press both keys at the same time again so as to go to the upper level and then scroll the display until Cnf appears and repeat the opera tion to go to the upper level Once this level is reached scroll the display until H49 appears at this point press the two keys again to reach the lower level At this point modify the setting of the parameter 0 to 1 Confirm the change and repeat the procedure holding the keys down for 2 seconds each time so as to go back to the fir2. Pa H20 Polarity ID9 ID10 ID11 STA Pa H21 Polarity ST1 Pa H22 Polarity ST2 Pa H23 Configuration ID Pa H24 Configuration ID2 Pa H25 Configuration ID3 Pa H26 Configuration ID4 Pa H27 Configuration ID5 Pa H28 Configuration ID6 Pa H29 Configuration ID7 Pa H30 Configuration ID8 Pa H31 Configuration ID9 Pa H32 Configuration ID10 Pa H33 Configuration ID 1 Pa H34 Configuration STA if digital input Pa H35 Configuration of relay 2 Pa H36 Configuration of relay 3 Pa H37 Configuration of relay 4 Pa H38 Configuration of relay 5 Pa H39 Configuration of relay 6 Pa H40 Configuration of relay 7 Pa H41 Polarity RL2 Pa H42 Polarity RL3 Pa H43 Polarity RL4 Pa H44 Polarity RL5 Pa H45 Alarm relay polari Pa H46 Output configuration fan 1 Pa H47 Output configuration fan 2 Pa H48 Free Pa H49 Selection of the operating mode Pa H50 Enable the dynamic setpoint Pa H51 Offset in cooling dynamic set point 4 x x CLS CLH 09 05 22 O 300 QI Q O O N g olol O O O O O O O CO Qo O limits Unit 40 0 Pa HO C O 350 kPa 10 0 15 Num 0 Flag O 11 Num O 11 Num Flag Flag Flag Flag Flag Flag Flag Flao Flao O O ele TH THE ele TT TH TH ojojo le ck J l eel O O ITELCO CLIMA Pa H52 Offset in heating dynamic set point AO
3. Thermal devices of the fan circuit 1 see digital inputs e Automatically reset until the number of interventions hour is equal to the value set by parameter Pa AO9 in this case it becomes manual e Turns off the fans and the compressors e Is enabled if the analog sensor ST2 see analog inputs is configured as antifreeze sensor Pa H12 1 e Is activated when the sensor ST2 detects a value lower than Pa A11 e Is disabled if the sensor ST2 detects a value above Pa A11 Pa A12 e Automatically reset until the number of interventions hour is equal to the value set by parameter Pa A13 in this case it becomes manual e Is disabled during the Pa ATO time counting by the turning on of Energy 400 by the ON OFF key see keyboard or by the ON OFF digital input see the digital inputs or when the heating mode is enabled e Turns off all the users e Is enabled if the sensor ST2 configured as analog input is shortcircuited or cutout or when the sensor limits are exceeded 50 C 100 C e Turns off all the users e Is enabled if the sensor ST3 configured as analog input is short circuited or cutout or when the sensor limits are exceeded 50 C 100 C e Turns off the compressors of circuit 2 e Is activated by the digital input configured as High pressure circuit 2 see digital inputs 12 Auto Man ITELCO CLIMA CODE SIGNAL DESCRIPTION RESET Low pressure circuit 2 Antifreeze circuit 2 Failure o
4. turning off O 0 255 Seconds x Pa CO8 Interval capacity step intervention O 0 255 Seconds 2 11 VENTILATION PARAMETER TABLE Par Description SCV limits Uh PaFOS Fan offset TB 00 10 pSeconds 200 PaFO4 Startup pulseduration OJ 3 255 Seconds 200 Patos Operation requested by the compressor 1 0 Os T Flag ____ 500 800 C7 TO pa TO 0 255 C 10 Kpa 10 O 255 C 10 Kpa 10 O 255 C 10 Kpa 10 Pa F17 Set temp pressure min fan speed in heat o 800 ID To 255 zok Kpa 10 Pa F20 Set ene pressure max fan speed in heat Pa F21 Prevention in cooling mede 0 285 Second 500 800 C 10 Kpa 10 PaF24 Fan activation hysteresis in defrosting 0O 0 255 C 10 Kpa 10 PaF25 Fon time post defrosting x LD O 0 255 Seconds 2 12 PUMP PARAMETER TABLE PUMP PARAMETERS Par Description Cle Limits Unit Pa PO1 Pump operating mode 0 0 Flag Pa PO2 Delay pump ON compressor ON 0 255 Seconds Pa PO3 Delay compressor OFF pump OFF 0 255 Seconds 10 CLS CLH 09 05 ITELCO CLIMA 2 13 RESISTOR PARAMETER TABLE RESISTOR PARAMETERS Per Description Ve ue Limi Resistor configurotion i in n defrosting mode Resistor on configuration i in heating mode O Resistor configuration OFF or STAND BY 7 Set point of resistor 1 in heating mode Pa RE Pa 09 Set point of resistor 1 in cooling mod
5. 50 0 80 0 Pa H53 Set ext T in cooling dynamic set point 35 127 127 Pa H54 Set ext T in heating dynamic set point Pa H55 Delta T ext dynamic set point cooling Delta T ext dynamic set point 0 0 127 12 PaH58 fse IAT 0 0 12 7 12 7 0 If the parameters of this category are modified the controller must be turned off and then on again after each change in order to ensure a proper operation 2 9 ALARM PARAMETER TABLE Par Description Limits Unit Bypass of LP pressure switch from compressor O 255 By pass of pressure switch from pump activation 5 O 255 Antifreeze alarm activation set 127127 PaAl2 Antifreeze alarm hysteresis 20 25S HP activation set for analog input 600 O 900 HP hysteresis for analog input 20 0 255 Bypass activation LP for analog input 22 O 255 Set activation LP for analog input 500 500 800 LP hysteresis for analog input 10 0 255 Rh O O JO N N Pa A21 Uncharged machine bypass 30 O 255 Minutes Uncharged machine time 30 0 255 Set over temperature ST 25 0 255 Duration ON over temperature 120 120 0 255 C PC 4 Pa A20 Uncharged machine differential 20 0 255 Minutes C 10 CLS CLH 09 05 ITELCO CLIMA 2 10 COMPRESSOR PARAMETER TABLE Par Description Cle limits Unit Pa CO1 Start Stop safety time 9 0 255 Seconds 10 _ O 255 Seconds 10 Pa COZ Interval compressor compressor
6. ITELCO CLIMA ITELCO CLIMA CLS CLH control 2 Compressors ELECTRONIC SERVICE MANUAL ITELCO CLIMA CLS CLH ELECTRONIC CONTROL 1 TECHNICAL CHARACTERISTICS 1 1 SPECIFICATIONS TT TT 7 M TT Ma TT Supply frequeney oeo PT pey poa TT TET Telar das pod TET TET Protection degree PO fen panel 1 2 ELECTRO MECHANICAL CHARACTERISTICS Digital outputs 120 240 V e n 8 relays 5 A resistive 1 4 hp 230 VAC 1 8 hp 125 VAC basic The total current on relays shall not exceed 10A e n 2 relays 5 A resistive 1 4 hp 230 VAC 1 8 hp 125 VAC expansion Analog outputs e n 2 configurable triac outputs or 4 20 mA Analog inputs e n 4 NTC R gt 10KQ e n 2 configurable inputs 4 20 mA NTC R gt 10KQ Digital inputs e n 11 voltage free digital inputs basic e n 4 voltage free digital inputs expansion Terminals and connectors n 1 HV 10 way connector pitch 7 5 n 2 LV 16 way connectors pitch 4 2 AWG 16 28 1 p2 5 5 way connector with remote control and memory card AWG 24 30 1 20 way connector connection expansion 1 3 way screw terminal for remote keyboard Display and led 3 digits sign 5 red LED s 2 keys 1 serial line 9600 1 serial line 2400 Keys Serial lines O O O O O n n n n n n n n CLS CLH 09 05 ITELCO CLIMA Transformer This appliance must be powered by a suitable trans for mer having the characteristics listed below 230V 10 110V 10 e Pri
7. Press the key ex for 5 seconds to activate the co trol once the machine has been pow ered You will display the value of the sensor of the water entering the evaporator ST1 To turn off the control press the key for 5 seconds Led 1 compressor 1 e ON if compressor 1 has been activated e OFF if compressor 1 is not activated Defrost Signalled by the slow blinking of both the LED s of the compressors Resistor boiler LED E e ON if the internal antifreeze resistor or the boiler are on e OFF if the internal antifreeze resistor or the boiler are off 3 Heating LED e ON if the device is in heating mode the reversal valve is not excited Cooling LED e ON if the controller is in cooling mode the reversing valve is excited If the HEAT and COOL LED s are off the controller is in the STAND BY mode CLS CLH 09 05 2 3 BEFORE START UP Before starting this appliance 1 Turn on the master switch of the supply line 2 For a perfect heating of the oil in the compressor s sump and for a proper removal of the refrigerant con tained in the oil the operation described in point 1 above should be carried out several hours before the actual start up of the appliance 2 4 STARTING AND USING THE UNIT In order to use this unit properly and in full safety care fully read and understand the following instructions 1 To start up the unit press the key for 5 seconds if you do this during operation the unit w
8. To check the electrical connection To check Pump Down setting To check the pump To check the pump size To clean the filter To clean the exchanger To check the plant pressure drop To replace the sensor To replace cable To check the electrical connection To check the insulation To replace the sensor To replace cable To check the electrical connection To check the insulation To replace the sensor To replace cable To check the electrical connection To check the insulation To check the pump To release the pump To reset the thermal contact and to check the scale To release the flow switch To check the configuration with spec CLS CLH 09 05 ITELCO CLIMA TERMINAL BOARDS FOR USER CONNECTIONS El CEL Lb EQ HD LQ aJo e oje CIRCO fe Si v9 5 DOREN AONA Z Sr o coa 97 e rS _ lS e 18 lO e LOJE lO e z f _ e e 8 N JOSSIADADOO NOILVOIGNI SLOW4Sd NO JOSSIJAMOS NOILYOIGNI SLOWS Ll WIlSAS Way N 1Y43N 30 OVADEZ div SO XvN AV138 dANd OVADES dAY SO XWW AVISA 323393 11NW NOAADI 913 dANd 9310 IVNOLLAO YOTYSLNI TYNHILXI NORNHOD SHS HOLIMS MO 13 HOLMS SILNIM SINANS SLOWS HOLIMS dOLS LYVLS SLOWTY 16 CLS CLH 09 05
9. du Bojeuy V3H Buneoy jes aqe7 13S u od jes 009 Bu jooo jas jeqe 003 9Poo wieje pe eAll9V b G pe lbo pu spuodas ay JOY au QUIDS SU ID s J JJO uO SPOW SU umop pjoy si j uupipd s y Jajua o psyeAljoe Wee I A UOITeE NBaY MO 9Q CLS CLH 09 05 ITELCO CLIMA 2 7 PARAMETERS 2 7 1 Set Setpoint see the tree menu The 2 available setpoints are Set Meaning Min Max Standard The 2 setpoints are under Set by scrolling the menu as indicated for the sensors 2 7 2 tP Temperature display The terminal displays always the temperature of the sen sor at the inlet of the evaporator The other sensors are erica og ne for the control diagram ECO O 2BTeoi To display the other sensors press the 2 arrow keys at the same time for 1 second and release them so as to shift from level O to level 1 Use the arrows to go to tP Press the 2 arrows again for 1 sec and release these keys to enter level 2 sensor list and then level 3 to read the value of the sensors To go back to level O press the 2 arrow keys at the same time for 3 sec until you go to the upper level on the display and then release them 2 7 3 Id Id Digital inputs In this level you can display the state of the digital inputs of the card O open 1 closed flow meter ext consent fans thermal switch LP HP 1 thermal switch C CONNECTOR A ON OFF can be enabled Heat C
10. e Off e Turns off all the users e Is activated by the digital input configured as remote ON OFF see digital inputs e Turns off all the compressors of circuit 1 e Is activated by the digital input configured as High pressure in circuit 1 see digital inputs e Turns off the compressors and the fans of the condenser if the separate condensation has been set for the 2 circuits see single or separate con densation e Is activated by the digital input configured as Low pressure in circuit 1 see digital inputs e Automatically reset until the number of interventions hour is equal to the value set by parameter Pa AQ2 in this case it becomes manual e Disabled during the Pa AO1 time counting due to the turning on of a compressor or by the reversal of the 4 way valve reversing valve of cir cuit e Turns off the compressor 1 e Is activated by the digital input configured as Thermal devices of com pressor 1 see digital inputs e Automatically reset until the number of interventions hour is equal to the value set by parameter Pa AO7 in this case it becomes manual e Disabled during the Pa AO8 time counting due to the turning on of the compressor e Turns off the fans and compressors of circuit 1 if the single condensation is set for the 2 circuits see single or separate condensation the compres sors of circuit 2 are locked as well e Is activated by the digital input configured as
11. e Pa 10 Pa 09 Max resistor set Pa 10 127 Min antifreeze resistor set 127 Pa O9 Antifreeze resistor h steresis 0 2 ES Set point of resistor 2 in heating mode Pa 0 Pa 09 Set point of resistor 2 in cooling mode Pa 10 Pa 09 Enable resistors in integration Integration resistor activation Integration resistor 2 activation 0 25 5 2 14 DEFROSTING PARAMETER TABLE Par Description Valve Limits Unit Pa dO Enable defrosting Flag Pa dO3 Defrosting interval ri Oa 255 Minutes Pa d04 Defrosting end temperature pressure a e 800 C 1 0 kPa 10 Pa d06 EAR reversing valve waiting time E 255 Seconds Pa dO7 Dripping time 255 Seconds Pa d08 Delay between circuit defrosting O 255 Secondi 10 Pa dO9 Defrosting circuit 1 outlet sensor Num 0 3 Pa d10 Defrosting circuit 2 outlet sensor 0 3 Num Pa dl Compressor start up delay in defrosting O 255 Seconds 2 15 EXPANSION PARAMETER TABLE Description Value Limits Pa NO Pa NO2 Pa NO3 Configuration ID14 2 19 Relay configuration 10 E 11 11 CLS CLH 09 05 3 ALARM TABLE ITELCO CLIMA CODE SIGNAL DESCRIPTION RESET High pressure in circuit Low pressure in circuit Thermal protection of compressor Thermal protection of the condenser s fans circuit 1 Antifreeze circuit 1 Failure of sensor ST2 07 Failure of sensor ST3 High pressure circuit 2 CLS CLH 09 05 Remot
12. e sensor ST Inlet water temperature E 41 Flow switch E45 Configuration error E46 Small refrigerator capacity To check the plant thermal load Over temperature Sensor out of the socket To check the sensor socket ITELCO CLIMA COOL Fan stop Low ventilation Fan thermal contact open High gas charge Coil dirty Coil obstruct Fault high pressure transducer HEAT Low water flow Wrong pump Dirty filter Dirty exchanger High circuit pressure drop Espansion valve broken Gas circuit empty Gas leak High temperature water inlet Solenoid valve not open Solenoid valve not open Low water flow Wrong pump Water filter dirty Dirty exchanger High circuit pressure drop Faulty sensor Cut cable Sensor not connected Water inside the sensor Faulty sensor Cut cable Sensor not connected Water inside the sensor Faulty sensor Cut cable Sensor not connected Water inside the sensor Water pump stop Water pump blocked Pump thermal contact open Flow switch blocked Wrong configuration 15 To check the fan To check the fan speed To reset the contact To check the gas charge To clean the coil To check the installation position To replace the transducer To check the pump To check the pump size To clean the filter To clean the exchanger To check the plant pressure drop To replace the espansion valve To charge the circuit To find and repair the leak To check the plant thermal load
13. ensor limits are exceeded 50 C 100 C e Turns off all the users e Is enabled if the sensor ST6 configured as analog input is short circuited or cutout or when the sensor limits are exceeded 50 C 100 C e Turns off all the users e Is enabled if the sensor ST1 configured as analog input is short circuited or cut out or when the sensor limits are exceeded 50 C 100 C e Turns off all the compressors the fans and the pump if of manual reset pe e Is enabled if the digital input configured as Flow meter see digital inputs remains activated for a time Pa AO4 e Is disabled if the digital input configured as Flow meter see digital inputs remains activated for a time Pa AOS e Automatically reset until the number of interventions hour is equal to the value set by parameter Pa AO6 in this case it becomes manual e Is disabled during the Pa AO3 time counting by the activation of the pump e Turns off all the users e The alarm is activated when at least one of these conditions is met H11 2 ST1 set as heat request H12 2 ST2 configured as cold request and both inputs are enabled e the sum of the compressors and the capacity steps of the machine gt 4 e Turns off all the users except for the pump e Is activated if the values of sensor ST see analog inputs exceeds Pa A25 for a time gt Pa A26 in cooling mode e Is disabled if the values of the sensor ST1 see analog inputs are lower
14. f sensor ST5 E27 Failure of sensor ST6 Ra Faire of sensor ST Flow meter Configuration error High regulation temperature e Turns off the compressors of circuit 2 and the condenser s fans if the sepa rate condensation for the 2 circuits has been set see single or separate condensation e Is activated by the digital input configured as Low pressure circuit 2 see digital inputs e Automatically reset until the number of interventions hour is equal to the value set by parameter Pa A02 in this case it becomes manual e Is disabled during the Pa AO1 time counting by the turning on of a com pressor or by the reversal of the 4 way valve reversing valve of circuit 1 e Turns off the fans and the compressors e Is enabled if the ST5 analog sensor see analog inputs is configured as antifreeze sensor Pa H15 1 e Is activated when sensor ST5 detects a value lower than Pa A11 e Is disabled if sensor ST5 detects a value higher than Pa A11 Pa A12 e Automatically reset until the number of interventions hour is equal to the value set by parameter Pa A13 in this case it becomes manual e Is disabled during the Pa ATO time counting by the turning on of Energy 400 by the ON OFF key see keyboard or by the ON OFF digital input see the digital inputs or when the heating mode is enabled e Turns off all the users e Is enabled if the sensor ST5 configured as analog input is short circuited or cutout or when the s
15. ill stop When the appliance is off the display of the control system shows a red or the EOO message if a Start Stop remote contact is provided While the unit is running the display shows the temperature of the return water mode 2 If the unit is of the heat pump type the key makes it possible to select the cooling mode or the heating mode Pressing this key makes the mode cyclically switch from stand by to cooling heating stand by etc The cooling mode is indicated by the lighting up of the LED under the ideogram a while the heating mode is indicated by the lighting up of the LED under the ideogram 3 To modify the set point press both keys at the same time When the Set message appears on the dis play the operation must be repeated to go to the next level Scroll the text on the display up or down so that the Coo and HEA messages appear alter natively The heating set point can be moditied by pressing both keys at the same time so as to go to the next level The shop setting will thus appear 12 C This setting can be increased or decreased by scrolling the value up or down with the relevant keys Once the desired value is displayed simply press both keys for 2 seconds to accept it and to go back to the previous level Scroll the text on the display until the HEA message appears and the heating set point can be modified by following the procedure adopted to modify the cooling set point
16. mary voltage e Secondary voltage 12V e Supply frequency 50 Hz 60 Hz e Power VIVA 1 3 DIMENSIONS e Dimensions Front 76x34 depth 58 mm e Container plastic resin PC ABS extinction degree Vo e Mounting panel on a 71x29 mm hole 71x29 mm 1 4 STANDARDS The product conforms to the following EC Directives e 73 23 EC Directive and subsequent amendments e 89 336 EC Directive and subsequent amendments and complies with the following har monised Standards e Low Voltage EN60335 as applicable e Emission EN5008 1 1 EN55022 e Immunity EN50082 1 IEC 1000 4 2 3 4 5 2 USER INTERFACE The interface consisting of the front of the appliance allows you to carry out any operation with this tool and in particular e to set the operating mode e o to control alarm situations e to check the state of resources Keyboard Front panel of the appliance 2 1 KEYS mode Mode A Selects the operating mode e if the heat mode is enabled pressing this key results in the following sequence Stand by gt cooling gt heating gt stand by e if the heat mode is not enabled Stand by gt cooling gt stand by In the menu mode this key becomes the SCROLL UP or UP value increment key On Off Alarm Reset on off Resets the alarms and turns the appliance on off Press it once to reset all manual alarms that have not been activated Hold this key down for 2 seconds the appliance switches from ON to OFF o
17. mputer through the relevant software inter face module and adequate cables or via keyboard In this case the access to the different parameters is organized in sub levels that can be accessed by press ing the mode and on off keys at the same time see above Each menu level is identified by a mnemonic code that appears on the display The structure is organized in the manner described in the following diagram CLS CLH 09 05 ITELCO CLIMA en ea Jo OWeIed en ea Jojoweled en ea Jojoweieda en ea Jojoweieda en ea Jojoweled en ea Jojoweieda en ea Jojoweleda en ea Jojoweleda sinou JO ON sinou JO ON pesn JON LOP Xepu eg LOP xepu 04 x pul LOd xepu LOW x pui LOS X pu LOD xepu LOH Xepu enpea indu jevibiq enpea indui Bojeuy anjea Bunesy 18S njea Buljooo 18S DIDp SU 9JOJS OSJO UND NO ADM SIUJ UI Ap dsip joiu Sy jun si A 1 u ING si j uupipd y Jajua OJ no paros SUOIJDJ9doO ay JD9deJ DJDp Jos 9UJ 104S O dHO sinoy dund HHO LHO sinoy duos AHOUVonelado jo sinoH n 8A PIOMSSEJ SSd plomssed 1dS Bu looo ee dS3 Jed uoisuedxg 14p wed Bunsouj d O14 Jed z uJlluv dnd ed duind Ty ed uuely J d S 19 9W1e1ed uVjJ Jed uonejnusa dg ed Jossoiduos 4ug ued uongeinbijuos LO pos indu pj s ndu jey61q 901 LO epoo indu dL s n
18. old closed heat LP2 HP2 thermal switch C2 free CONNECTOR B 2 7 4 Par Parameter level Enter the parameter list See the parameter table All parameters are divided into 8 groups expansion 2 relays 2 7 5 PSS Password Enter password 177 to display all the parameters from the parameter list 2 7 6 OHr Hours of operation The hours of operation of compressors and pump are displayed Hours of compr 1 Hours of compr 2 To reset the displayed counter press the on off key for 2 seconds while the hours are being displayed After 999 hours the decimal point is displayed and the num bering is expressed in hours 100 CLS CLH 09 05 ITELCO CLIMA 2 8 PARAMETER TABLE The following list shows all the parameters CONFIGURATION PARAMETERS Par Description Value Pa GOI Cooling set point 10 Pa HO Max set point in heat 47 Pa HO2 Min setpoint in heat 25 Pa HO3 Max set point in cool Pa HO4 Min setpoint in cool Pa HO5 Number of circuits of the machine Pa HO6 Number of compressors per circuit Pa HOZ Number of capacity steps per compressor Pa HO8 Compressors start up sequence Pa HO9 Circuit balancing Pa H10 Presence of the heat pump Pa H11 Configuration ST Pa H12 Configuration ST2 Pa H13 Configuration ST3 Pa H14 Configuration ST4 Pa H15 Configuration ST5 Pa H16 Configuration ST6 Pa H17 Full scale pressure value Pa H18 Polarity ID1 ID2 ID3 ID4 Pa H19 Polarity ID5 ID6 ID7 ID8
19. ompressor motor Thermal switch Compressor thermal contact open To reset the thermal contact compressor 1 Wrong charge To check the gas charge Wrong electrical cable connection amp To check the electrical connection to tight phase missing en the terminal block screws E04 Fan stop To check the motor Thermal switch fans Fan thermal contact open To reset the thermal contact and to check the scale Fan blocked To release the fan Wrong electrical cable connection 8 To check the electrical connection to tight phase missing en the terminal block screws E05 Low water flow To check the pump Antifreezing Wrong pump To check the pump size Circuit 1 Water filter dirty To clean the filter Dirty exchanger To clean the exchanger High circuit pressure drop To check the plant pressure drop E06 Faulty sensor To replace the sensor Failure sensor ST2 Cut cable To replace cable Outlet water Sensor not connected To check the electrical connection temperature Water inside the sensor To check the insulation E07 Faulty sensor To replace the sensor Failure sensor ST3 Cut cable To replace cable Coil 1 Sensor not connected To check the electrical connection Water inside the sensor To check the insulation 14 CLS CLH 09 05 E 21 High pressure digital Circuit 2 E 22 Low pressure digital Circuit 2 E 25 Antifreezing Circuit 2 E 26 Failure sensor ST5 Outlet water temperature E 27 Failure sensor ST6 Coil 2 E 40 Failur
20. r from OFF to ON When OFF only the dec imal point of the display remains lighted In the menu mode this key becomes the SCROLL DOWN or DOWN decrement key mode On off mode combination A z The mode and on off keys are pressed at the same time Press and release these keys in 2 seconds to go to the lower level in the display menu Hold down both keys for more than 2 sec onds to go to the upper level If you are displaying the last level of a menu pressing and releasing this key in 2 seconds allows you to go to the upper level CLS CLH 09 05 ITELCO CLIMA 2 2 DISPLAYED DATA This device can give any type of information on its sta tus configuration and alarms through a display and the LED s on its front panel 2 2 1 DISPLAY The following data appear in normal dis play mode e the control temperature in tenths of a degree Celsius with decimal point or Fahrenheit without decimal point e The alarm code if at least one of them is enabled If more alarms are activated the first one is displayed according to the Alarm Table e If the thermoregulation is not based on analog inputs and depends on the status of a digital input ST or ST2 configured as digital inputs the On or Off label is displayed according to the thermoreg ulator state on off e In the menu mode the display is a func tion of the position e If only the decimal point is lighted the control is not activated
21. st level 6 In case of summer winter switch over through a remote contact the unit works in cooling mode when the contact is closed and in heating mode when the contact is open A IMPORTANT If the unit is powered with 3 phase voltage it is essential that the compressor turn in the exact direction The direction of rotation of scroll compressors is forced The direction of rotation is wrong when while the unit is running e you hear an anomalous noise of the compressor e there is not a proper differential between the dis charge and the suction pressures i e if the discharge pressure is slightly higher than the suction pressure lf you exchange the connections of two of the three phases the compressor inverts the direction of rotation and these phenomena disappear 2 5 REMOTE KEYBOARD The remote display keyboard is a perfect copy of the information displayed about the instrument and has the same LED s Remote keyboard The functions are identical to those listed in the key and display section The only difference consists in the use of the UP and DOWN keys to increase decrease the value separat ed by the MODE and ON OFF keys The connection to the device is as follows Connection Control panal H ail j j si L I Wire Color 24 Blu 25 Red 26 Black Back side 4 2 a a 2 6 PARAMETER PROGRAMMING MENU LEVELS The parameters of the device can be modified via Personal Co
22. than Pa A25 Pa A12 e The reset is automatic Manual alarms are reset by pressing the On Off key for 1 second 13 CLS CLH 09 05 ITELCO CLIMA 4 CLS CLH TROUBLE SHOOTING The following table details possible unit faults their probable cause and suggested remedies for any other problems not immediately recognisable and or technical assistance call an authorised Technical Service Center E00 Remote on off contact open Close the contact Remote Off Wrong electrical cable connection To check the electrical connection E01 COOL High pressure Fan stop To check the fan digital Low ventilation To check the fan speed Circuit 1 Fan thermal contact open To reset the contact High gas charge To check the gas charge Coil dirty To clean the coil Coil obstruct To check the installation position Fault high pressure transducer To replace the transducer HEAT Low water flow To check the pump Wrong pump To check the pump size Dirty filter To clean the filter Dirty exchanger To clean the exchanger High circuit pressure drop To check the plant pressure drop E02 Espansion valve broken To replace the espansion valve Low pressure Gas circuit empty To charge the circuit digital Gas leak To find and repair the leak Circuit 1 High temperature water inlet To check the plant thermal load Solenoid valve not open To check the electrical connection Solenoid valve not open To check Pump Down setting E03 Motor compressor faulty To check the c
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