cl10-aircoolair-compactair-iom-mul27e-0701 09-2006_nc
Contents
1. HOGG DH If unit is working the A or W buttons allow to select the desired room temperature set point The button A allows the increase of the current set point 0 5 C The button V allows the decrease of the current set point 0 5 C C SELECTING THE FAN OPERATING MODE To be able to select a fan operating mode cool heat or auto unit s operating mode must be selected Pressing FAN side button scrolls through the following modes FAN CONSTANTLY ON or AUTO FAN CONSTANTLY ON Fan is continuous ON the symbol GA will appear AUTO Fan on and off together with the compressor the symbol SS will appear aut FE 235 Fan operating mode SELECTING THE TEMPERATURE SET POINT CATEGORY D SELECTING THE TEMPERATURE SET POINT CATEGORY After COOL HEAT or AUTO operating mode has been selected pressing set button select the set point category There are 3 possible set point categories available 1 Comfort set point indicated by the symbol It is the reference room desired temperature set point used for the rest of the categories ram 2 Brief absence set point indicated by the symbol Wiii Typically used when the room is not occupied for a short period of time 3 Night time set point indicated by the symbol I ie The room is occupied yet a lower level of comfort is required The default set point values for the various categories are CATEGORY SET COOL SET HEAT Desired room temperature Desired ro2. MUL27E 0701 09 2006 POLAND www lennoxpolska com PORTUGAL www lennoxportugal com RUSSIA www lennoxrussia com SLOVAKIA www lennoxdistribution com SPAIN www lennoxspain com UKRAINE www lennoxrussia com OTHER COUNTRIES www lennoxdistribution com Due to Lennox s ongoing commitment to quality the Specifications Ratings and Dimensions are subject to change without notice and without incurring liability Improper installation adjustment alteration service or maintenance can cause property damage or personal injury Installation and service must be performed by a qualified installer and servicing agency
3. components go to point 2 gt If the alarm does not disappear power board is defective 2 Check continuity loose connections and verify that indoor fan motor operating current is within values oO ALARM CODES CODE ED O O SIGNAL External alarms from following protection components Compressor protector module open COMPACTAIR From 48D F11 12 100D F11 F12 F13 F14 AIRCOOLAIR From 48D F11 F12 100D F31 F33 From 128D F31 F32 F33 Outdoor fan protection open COMPACTAIR F13 F14 F15 F16 100D AIRCOOLAIR F13 F14 From 100D F35 F36 High pressure switch protection open HP1 HP2 Low pressure switch protection LP1 LP2 DESCRIPTION When digital input ID3 is opened the alarm message E ID is displayed EFFECT Only alarm indication RESET Reset automatically when input ID3 is closed CHECK POINTS For D units 2 STAGE COOLING 3 STAGE HEATING alarm EID indicates the alarms of both circuits together the alarm code is displayed by either safety relay R1 R2 deactivation Each circuit includes a safety relay R1 R2 R1 for circuit one and R2 for circuit two The relay for each circuit will remain closed activated until any of the protection devices compressor protection module outdoor internal protection high pressure switch low pressure switch are activated The control only produce alarm indication the compressor and outdoor fan for each circuit will be stopped by its corresponding protect
4. displayed on the field in the top right of the display H7 1 Shows the value of the current set point H7 2 Shows outdoor coil and otudoor temperature free cooling option i VEIE 7 HBH fn Outdoor coil temperature aut or Ambient ar aar ar Zejo Outdoor temperature temperature Only for terminal with clock function as an option It establishes the display format H9 0 THE FORMAT IS 24 HOUR CLOCK H9 1 THE FORMAT IS 12 HOUR CLOCK Format 24 hours tt Format 12 hours LL DEFROST MANAGEMENT The defrost process is activated during heating mode in the heat pump units when the outside temperature is very low and the coil of the external heat exchanger could be frozen To melt the ice defrost function will turn on and brings about the inversion of the reverse cycle valve from heating mode to defrost function For this control the defrost cycle is done trough auxiliary printed boards The defrost auxiliary printed boards have 2 leds one for the supply and other for the defrost When one circuit is on the defrost cycle the led of its auxiliary printed board will be on If you press the button in the auxiliary printed board the defrost cycling will be on for this circuit DEFROST CYCLE SEQUENCE During defrost cycle the inversion of the reverse cycle from heating mode to defrost function the outdoor fan will stop and the inner fan keeps going on START DEFROST CYCLE The defrost cycle begin
5. thermistor in the discharge port NAT 140 C 3 Check outdoor fan internal protection internal thermal contact or thermal relay Check continuity loose connections and verify that motor operating current is within value 4 Check high pressure switch protection HP Check continuity loose connections and verify high pressure switch connection to refrigerant pipe Check high pressure values pay special attention to HP values during defrost cycle 5 Check low pressure switch protection LP Check continuity loose connections and verify low pressure switch connection to refrigerant pipe Verify refrigerant charge air flow and filters 14 ALARM CODES Terminal communication error DESCRIPTION Error in the serial communication between terminal and power board terminal does not receive data from power board The LED on the power board blinks 3 times in 3 seconds normal operation 1 blink every 3 seconds EFFECT Alarm indication and all the outputs are switched off RESET The alarm is reset automatically that is when communication is established again CHECK POINTS 1 Check the two lead serial connection between terminal and power board It must be a shielded cable to minimize low voltage interference and wired separately from other wires to prevent electrical coupling 2 Connect with two short wires the terminal T and T directly to power board T and T gt If the alarm does not disappear terminal is defective
6. CATION OF SET POINT VALUE To modify the set point value see page 5 on this manual VALUES DESCRIPTION MIN MAX UNIT Hour counter compressor 1 It indicates the number of compressor operating hours Hour counter compressor 2 It indicates the number of compressor operating hours 199 Kh When 19 900 working hours have been reached the parameter starts counting l o again Compressor hour counter maintenance threshold establishes the number of compressor operating hours beyond which the maintenance intervention messages 10 0 Khrs 01 HR1 HR2 are activated l l C7 0 disables this function Hour counter inner fan It indicates the number of inner fan operating hours 180 kms 9 9 Khrs When 19 900 working hours have been reached the parameter starts counting a 19 again Parameters F3 F4 allow setting a number of inner fan operating hours after which the display shows the alarm code thf which means air filter should be changed or cleaned Therefore parameter F4 should be changed establishing the number of fan operating hours X1000 beyond which the maintenance signal thf is activated Supply fan operating hours threshold It establishes the number of indoor fan operating hours beyond which the maintenance intervention signal alarm thf is activated F4 0 disables this function alarm will not be visualized F4 values from 1 to 10 number of hours x 1000 of indoor fan operating hours It establishes what is
7. LENNOX gt User manual Control CLIMATIC 10 arzzc arzan e Providing indoor climate comfort TABLE OF CONTENTS CONTENTS PAGE e GENERAL DESCRIPTION 2 e TERMINAL THERMOSTAT INSTALLATION 3 e USER INTERFACE DESCRIPTION 4 e SELECTING UNIT OPERATING MODE AND SET POINT 5 e SELECTING THE TEMPERATURE SET POINT CATEGORY 6 e CLOCK AND TIME BANDS AS AN OPTION 7 8 9 e PARAMETERS STATUS AND READINGS PROGRAMMING 10 11 e DEFROST MANAGEMENT 12 e POWER BOARD OF THE SYSTEM 12 e ALARM CODES 13 16 e REMOTE SENSORS AS AN OPTION 17 e THERMOSTATIC FREE COOLING AS AN OPTION 17 e STANDARD GUIDELINES TO LENNOX EQUIPMENT 18 GENERAL DESCRIPTION This electronic control is organised into two integrated systems a terminal installed in the room and a power board for managing the actuators in the electrical panel The terminal is connected to the power board using a two lead cable thus greatly simplifying installation AIR CONDITIONING UNIT Electrical panel in the unit Power board Terminal Thermostat Installed in the room If remote sensor is requested as an option the terminal thermostat can be installed in a different place from the room to be conditioned IMPORTANT Since this type of control panel is factory configured for each application an identification code located on the control panel of the terminal itself has been given to each panel Any query or request for a replacement of the control panel m
8. ded on it You can connect as an option remote sensors To use this option an outdoor probe is connected RC clock or 22C 21C mode auro A fan ER V r B1 hod EEB m 24v D resume B2 JE N 90 91 31 30 PCB 2 O IDCO m NAN o faa Aja ID3 This option approaches external conditions for cooling mode The free cooling is enabled when outdoor temperature is below indoor temperature For these conditions air intake gate is opened Two thermostats on the air discharge are incorporated for the safety of the unit One of them for 4 C closes the gate in order to prevent freezing The other one for 10 C opens the gate to take advantage from outside air These thermostats only work when the free cooling is enabled If it does not work properly please check the jumper according to the electrical wiring diagram 17 POINTS TO KEEP IN MIND Standard Guidelines to Lennox Refac equipment All technical data contained in these operating instructions including the diagrams and technical description remains the property of Lennox Refac and may not be used except for the purpose of familiarising the user with the equipment reproduced photocopied transferred or transmitted to third parties without prior written authorisation from Lennox Refac The data published in the operating i
9. e replaced Outdoor temperature sensor error for free cooling operation CHECK POINTS 1 Check the correct installation of jumper J2 on terminal In position 2 1 J2 2 Measure relationship temperature voltage check for possible loose connection cable breakage It must be a shielded cable to minimize low voltage interference CODE E3 defrost heat pump type E and D2 free cooling cooling only and heat pump type D SIGNAL Value read by sensor on the power board analogue input B3 Defrost heat pump type E and D2 outdoor coil sensor error mounted on liquid line Free cooling cooling only and heat pump type D outdoor temperature sensor error DESCRIPTION Indicate malfunctioning of temperature sensor analogue input B3 EFFECT Alarm indication and all the outputs are switched off RESET The alarm is reset automatically that is when the sensor starts working correctly CHECK POINTS Measure relationship temperature resistance check for possible loose connection cable breakage EE OSOSOCSOSSSSSSS O Se ALARM CODES NO ALARM DISPLAYED MESSAGES HOLD IS NOT AN ALARM INDICATION IT MEANS TEMPERATURE SET POINT OVERRIDE On units with built in clock if switches from time band to manual operation pressing HOLD button in such situation the word HOLD appears and the comfort set point can be modified IS NOT AN ALARM INDICATION IT MEANS THE EFFECTIVE START UP TEMPERATURE press A and buttons simultaneously For example i
10. emote sensors REMOTE DUCT SENSOR The sensor should be located at the return air duct recording the room temperature continuously REMOTE AMBIENT SENSOR The sensor should be located at the room which has to be conditioned Both sensors should be used when the terminal thermostat can be located on a position where the ambient temperature could not be measured with accuracy Example High ceiling rooms or terminal thermostat on a place different from the room to be conditioned To install them proceed as follow STEP 1 Connect the probe to AVSS y B1 terminal located on the sub base of the terminal thermostat Sub base sS Pa N Sub base Use two lead screen wire with section of 1mm Remote duct sensor Remote ambient sensor no longer than 20 meters ref NTCO 15WP00 IP68 ref ASW TC 11000 STEP 2 Move the jumper J1 located on the power board of the terminal thermostat follow the electrical diagram supplied with the unit Power board of terminal thermostat J1 liaan position O Change position Power board of the terminal thermostat STEP 3 Change parameter S8 to 1 STEP 4 Only for the optional remote duct sensor Select CONT as the fan operating mode in order that the room temperature will be detected continuously the display shows the symbol 4 See page 5 of this manual to select the fan operating mode THERMOSTATIC FREE COOLING OPTION Programming option is inclu
11. erature protector trip up to 140 C Beerse PR Check for loss of charge or extremely high compression ratio KRIWAN induere Elektronik Ombi De rote be she Check operation of compressor module protection Lm Check the module for possible loose connection cable breakage Measure compressor internal thermistor chain in a cold condition after the compressor has sufficiently cooled down Disconnect the terminal S1 and S2 to measure thermistor resistance which must be between 150 and 1250 ohms If the thermistor chain has a higher resistance 0 ohms short circuit oo ohms open circuit compressor is defective Verify compressor module remove terminals from M1 and M2 terminal S1 and S2 should be connected switch on power supply control voltage 220V must be available between terminal T2 and T1 without taking out power supply check continuity between M1 and M2 gt If there is not continuity the compressor internal protection is defective COMPRESSOR MOTOR PROTECTOR MODULE Technical specifications Operating description Normal PTC resistance 150 to 1250 Ohms Compressor protector module is based on the temperature Trip resistance gt 4500 Ohms 10 resistance of thermistor chain five PTC resistances one Reset resistance lt 2750 Ohms 10 thermistor for each phase NAT 80 C on winding upper Module time delay 30 minutes 10 side the fourth thermistor on winding lower side NAT 140 C and the fifth
12. ery 3 seconds serial communication error ALARM CODE ESR the terminal is not receiving the data sent by the power board TERMINAL The detection of an alarm brings the display of the alarm code and the letters AL alternating with the display of the temperature When more than one alarm is detected at the same time the display automatically scrolls through the occurred alarms When the unit is on mode OFF sensor alarms are detected only Compressor 1 and 2 maintenance alarm DESCRIPTION When the compressor has exceeded the number of operating hours specified by parameter C7 factory setting C7 0 the maintenance message HR 1 HR 2 is displayed EFFECT Only alarm indication unit does not stop To reset the operating hour counter must be set to zero parameter C5 C6 Press SET HOLD buttons The display shows parameter values Using the v buttons get the parameter C5 C6 compressor 1 compressor 2 Press SET button to confirm and with the w buttons change the value to 0 CODE PAR SIGNAL Supply fan maintenance alarm filter clean DESCRIPTION When the indoor unit fan has exceeded the number of operating hours specified by parameter F4 factory setting F4 0 the maintenance message HR F is displayed EFFECT Only alarm indication unit does not stop To reset the operating hour counter must be set to zero parameter F3 Press SET HOLD buttons The display shows parameter values Using the v buttons get the para
13. esired set point for an unlimited period A i The set point will remain until Change set point resume button is pressed to return using the front buttons to time band operation Press hold PROGRAMMING THE PARAMETERS Incorrect programming of the parameters may cause damage to the unit and consequently the loss of guarantee of the unit T All modifications on the operating unit parameters must be carried out by qualified personnel Proceed as follow reach to the operating parameters of the unit Step 1 Step 2 Step 3 Step 4 Step 5 clock clock set mode A fan hold set mode fan hold resume resume Pressing simultaneously both set and The parameters The modifications Parameters can be Press set to accept hold buttons are scrolled using are accepted by changed while they modifications the display shows the first of the unit the front buttons pressing set again are flashing operating parameters To continue modifying other operating parameters follow steps 2 3 4 To exit programming mode and accept the modifications to the parameters press the hold button To exit programming mode and NOT accept the modifications to the parameters press the resume button or wait for 1 minute of inactivity the final 15 seconds are signalled by the flashing of the characters on the display The table below gives the following information for each parameter COD The code w
14. eter associated to Indicates set point display temperature measurement E C Fan operating ar JHH Temperature probe L i Ji lt A Kal Fan operating mode measurement a MTWTFrSS Heating ON Day of week we are D BAD A A Cooling ON programming ap INL ed i Time band indication Unit OFF Set point category Indicates operating mode clock User parameters absence comfort night SELECTING UNIT OPERATING MODE AND SET POINT TEMPERATURE A SELECTING THE UNIT S OPERATING MODE The operating mode is always indicated on the display clock Pressing the mode button repeatedly the possible operating modes for the model of machine selected are scrolled through COOL The unit is working on cooling mode when compressor is working the symbol T will appear on the display HEAT The unit is working on heating mode when compressor or electrical heater are working the fail symbol will appear on the display AUTO The system automatically switches from cooling to heating mode depending on the position of hold the ambient temperature in respect to the set point FAN The unit will work on fan mode when fan is working the symbol SS will appear OFF The thermostat does not perform the regulation the symbol 1 appear on the display resume The operating mode selected is active 5 seconds from setting when the respective sign stops flashing B SELECTING DESIRED ROOM TEMPERATURE SET POINT E sek N
15. gramming for that day and let you start programming for another day NI Mo Tu We Th Fr Sa Su ZN F Nov LUPY Confirming the Use front buttons to scroll to another day which will flash in days using the turn thus extending the same program to the selected days E clock button Continue to program the remaining days The time interval identified by time current band is shown on the display using the clock symbol divided into 1 hour sections Thus the time band Pressing front from 12 to 7 o clock is indicated as buttons follows To exit programming IL Fe ENDE mode and accept the LIG g modifications to the made parameters press the mac clock button LEE 5 2 If you press the RESUME button the changes will not be saved 8 CLOCK AND TIME BANDS PROGRAMMING After all time bands have been programmed and unit it is working on any of them there are two ways to change the desired set point for the time band currently in use A Change the desired set point of the current time band during three hours The desired set point can be changed using the front buttons and will maintain the change for three hours Press resume button to return to time band operation before the three hours elapse Change set point using the front buttons Shows the time band during the set point will be set After three hours the controller returns to the programmed settings B Change the d
16. hich appears on the display The field variation for the parameters MIN Minimum value for the parameter MAX Maximum value for the parameter UNIT The units of measure used C Centigrade s seconds min minutes h hours Khrs hoursx1000 VAR Minimum variation allowed DEF The default value factory set VALUES COD DESCRIPTION MIN MAX UNIT VAR DEF Regulation probe calibration Value to be added to subtracted from the value measured by the temperature 12 12 C 0 5 probe used for the regulation Input digital filter filter for analogue inputs S6 1 the fastest rn 1 fot SE indicates he presence ofan extemal orinteraltemperatre probe 0 1 1 o rR Temperature dad zone Le ete OO re Autar elementsetpontofeet olm le CO 10 PROGRAMMING THE PARAMETERS HOW REGULATION PARAMETERS WORK Through R3 R4 R8 R9 parameters we set the temperatures for which compressor and electrical heater will turn on as figure shows Unit is working on heating mode Unit is working on cooling mode p R8 4 C R9 2 R3 2 R3 2 C R4 0 5 C R4 0 5 C The unit has automatic sequence change therefore the compressors turn on or turn off depending on ON OFF ON OFF OFF ON which one has been more time DE heater Compressor compressor operating or stand by E2 E1 c2 c1 c1 c2 18 5 C 20 5 C 22 5 C 23 5 255 C Desired temperature Set Point 23 C MODIFI
17. if power board led blinks 3 times Alarm indication and all the outputs are switched off The alarm is reset automatically that is when communication is established again CHECK POINTS 1 Check the two lead serial connection between terminal and power board It must be a shielded cable to minimize low voltage interference and wired separately from other wires to prevent electrical coupling 2 Connect with two short wires the terminal T and T directly to power board T and T gt If the alarm does not disappear power board is defective if power board led blinks 2 times CODE SIGNAL Value read by terminal sensor or by analogue input B1 Ambient temperature regulation sensor error DESCRIPTION Indicate malfunctioning of ambient temperature sensor EFFECT Alarm indication and all the outputs are switched off indoor fan keep running RESET The alarm is reset automatically that is when the sensor starts working correctly CHECK POINTS 1 Check the correct installation of jumper J1 on terminal r In position 2 3 ambient sensor on terminal standard 11 In position 2 1 remote ambient sensor optional 2 When using remote ambient sensor measure relationship temperature resistance check for possible loose connection cable breakage It must be a shielded cable to minimize low voltage interference If by mistake T and T are connected to AVss and B1 remote NTC sensor the terminal board will be damage code E1 will be displayed Terminal must b
18. ion devices compressor protector module outdoor fan protection high pressure switch protection low pressure switch protection and safety relay R1 R2 Therefore when the alarm EID is displayed one of the circuits will be operating despite the order circuit is stopped due to activation of its corresponding safety chain After an alarm occurs the safety relay will be activated again when the cause that produce the failure is reset and the indoor fan is switched OFF To switch off indoor fan Switch OFF ON power supply Set the unit on OFF mode and then set COOL HEAT mode again through the terminal To solve the problem will be necessary to identify on which circuit had happen the failure and after that follow the check points for each protection component 1 Check power board operation Verify the position of jumper J3 on power board position 1 2 INT ID COM Do a shortcut connection between GND and ID3 on pcb With this action a by pass for the protection line is done If the alarm disappears and the control operates the problem must be one of the protection components go to points 2 3 4 5 gt If the alarm does not disappear power board is defective 9000856 de Mada dn Germany me 2 Check compressor protector module INT69 SC Motor protector Verify that motor operating current is within values nero an CE Verify proper rotation direction of compressor Amb temp range 30 70 C Measure discharge pipe temp
19. led Press clock Select actual hour and using the front buttons to accept minutes with the front buttons Press clock to accept There are 6 possible time bands indicated respectively by the letters t1 t2 t3 t4 t5 t6 The bands may be at different times for each day of the week and at different set points yet they must be chosen from the three categories previously programmed EXAMPLE The table below shows an example of time bands clock for a week eG en fanning jn al ene en mo a Co Ex 05 EET ETT VET MT ET ES ES 15 2000 g 2000 og 2000 g 2000 glij 162200 o 2200 O 2200 o 2200 0 2000 Use the table below to design your own programming schedule Mo Tu We Th SU a mn mn mn Friday Ge Sunday CLOCK AND TIME BANDS PROGRAMMING PROGRAMMING PROCESS NI Je I i TN ann lee EY Set the program start day with Bits Metu We Th Fr Sa Su the front buttons and press gnon clock to accept To set a program press clock for 5 seconds t1 will show on the display Set the start hour and minutes for the first band with the front buttons and press clock to accept E Set the set point category for 3 the band with the front s buttons while flashing press jmode clock to accept Mo Monday Tu Tuesday We Wednesday Th Thursday Fr Friday Sa Saturday Su Sunday Other time bands for the same day are scrolled by pressing clock Stops the pro
20. meter F3 Press SET button to confirm and with the w buttons change the value to 0 High temperature alarm DESCRIPTION Indoor temperature has rise above 32 C during 10 minutes EFFECT Only alarm indication unit does not stop Unit would operate on these conditions only for short periods of time RESET Press RESUME button for more than 5 seconds Check parameter S4 factory setting S4 0 S4 allow the correction of the value measured by ambient temperature sensor DESCRIPTION Only alarm indication unit does not stop Unit would operate on these conditions only for short periods of time CHECK POINTS Sensor values relationship temperature resistance sensor position and air distribution Check parameter S4 factory setting S4 0 S4 allow the correction of the value measured by ambient temperature sensor th F External alarm from indoor fan internal protection open COMPACTAIR F15 COMPACTAIR 100D F17 AIRCOOLAIR F15 AIRCOOLAIR From 100D F37 DESCRIPTION When digital input ID1 is opened the alarm message th F is displayed EFFECT Alarm indication and all the outputs are switched off RESET Press RESUME button for more than 5 seconds when the cause that generated the alarm is reset HECK POINTS 1 Power board operation Do a shortcut connection between GND and ID1 on pcb With this action a by pass for the protection line is done If the alarm disappears and the control operates the problem must be the protection
21. n cooling operation with set 24 C and a compensation R4 of 1 C the effective start up point of the compressor is 25 C The displayed message will disappear after a few seconds IS NOT AN ALARM INDICATION IT MEANS THE FIRMWARE VERSION press A and buttons simultaneously and hold for 5 seconds The displayed message will disappear after a few seconds SUMMARY OF ALARM EFFECTS ha MEANING RESET REVERSE COMP SUPPLY CONDEN HEATER en NOTES VALVE FAN FAN HR had Maintenance alarm Reset the NO NO NO NO HR 2 hour counter ACTION ACTION ACTION ACTION HR F HIT High low ambient temperature Kl NO NO NO NO Action delayed 10 min LOT ACTION ACTION ACTION ACTION Compressor protection ID3 haal NO NO NO NO Action delayed 0 sec Outdoor fan protection ACTION ACTION ACTION ACTION High pressure switch AON pressure switch MANUAL EST Error on ambient sensor B1 AUTOMATIC OFF Error on free cooling sensor B2 AUTOMATIC EEPROM alarm SWITCH NO NO NO NO OFF ON ACTION ACTION ACTION ACTION Only included on terminal for units with free cooling pressing RESUME button silences the buzzer NTC sensor temperature C resistance Kohm relationship 40 18840 o 2728 40 582 80 16 80 m 10 1796 50 416 90 1 20 an 20 no 60 302 10 097 65 258 10 16 REMOTE SENSORS AS AN OPTION As an option there are available two types of r
22. nstallation procedure is as following 1 To detach the front panel of the terminal from the rear shell place a flat head screwdriver in the slot in the centre of the bottom of the box and release the locking flap 2 Raise the front panel using a hinge movement using the upper edge of the instrument as the pivot and raising the lower edge Sub base 3 To fasten the rear part of the box to the wall place the hole in the centre of the box over the cables for the control of the instrument which come out of the wall The placement of the mounting holes has been designed to allow the instrument to be fixed onto a box conforming to standards CEI 431 IEC 670 100x600 If this is not available use the mounting holes on the shell as a guide for drilling holes into the wall and then use the screw and plug kit supplied The cables for connection to the power board must be kept separate from other cables using an individual cable channel and use shielded cables with a cross section of 1mm AIR CONDITIONING UNIT Two lead shielded cable with a cross section of 1mm Power board Terminal Thermostat Installed in the room Maximum length allowed is 150m Electrical panel in the unit 4 Connect the cables to the terminals on the rear shell of the box as indicated in and in electrical diagram Sub base When making the connection to the power board special attention must be paid to the polarity the T terminal m
23. nstructions is based on the latest information available We reserve the right to make modifications without notice We reserve the right to modify our products without notice without obligation to modify previously supplied goods These operating instructions contain useful and important information for the smooth operation and maintenance of your equipment The instructions also include guidelines on how to avoid accidents and serious damage before commissioning the equipment and during its operation and how to ensure smooth and fault free operation Read the operating instructions carefully before starting the equipment familiarise yourself with the equipment and handling of the installation and carefully follow the instructions It is very important to be properly trained in handling the equipment These operating instructions must be kept in a safe place near the equipment Like most equipment the unit requires regular maintenance This section concerns the maintenance personnel and management If you have any queries or would like to receive further information on any aspect relating to your equipment do not hesitate to contact us 18 www lennoxeurope com LENNOX BELGIUM LUXEMBOURG www lennoxbelgium com CZECH REPUBLIC www lennox cz FRANCE www lennoxfrance com GERMANY www lennoxdeutschland com GREAT BRITAIN www lennoxuk com IRELAND www lennoxireland com NETHERLANDS www lennoxnederland com CE
24. om temperature COMFORT set point 23 C set point 23 C BRIEF Increase 4 C the set point selected Decrease 4 C the set point selected on comfort category on comfort category Be NIGHT Increase 2 C the set point selected Decrease 2 C the set point selected I on comfort category on comfort category How to change the desired temperature set point for the different categories Pressing the SET button in manual operating mode selects comfort category ml During the time the symbol is flashing pressing the front buttons A and W changes the currently set point used by the control This is the set point reference for the rest of the categories Bn Following the same steps we can select the categories brief absence er or night I and with the front buttons A and W assign the value between 0 C to 10 C for each category which means the degrees increased or decreased from the comfort category set point CLOCK AND TIME BANDS AS AN OPTION This Terminal Thermostat with clock function is a programmable terminal programming the time bands With this terminal set point desired can be set for 24 hours a day seven days a week time bands terminal is supplied as an option therefore it must be specifically requested if needed Proceed as follow to program the time bands 1 Set the actual time to make once when terminal is installed for the first time NI Pi Tu We Th Fr Sa Su ON OIL The days are scrol
25. s when outdoor probe temperature reaches 3 C END DEFROST CYCLE The defrost cycle ends when outdoor probe temperature reaches 25 C DELAY BETWEEN TWO DEFROST REQUESTS The time between 2 defrost cycles will be calculated between the end of one and the beginning of the other and it will be between 14 and 35 minutes depending on external conditions The defrost cycle is separately done for both circuits it is not at the same time When one circuit is on the defrost cycle the other one remains waiting POWER BOARD OF THE SYSTEM AT THE ELECTRICAL BOX OF THE AIR CONDITIONING UNIT The board features a signaling green LED which flashes when unit is electrically supplied The control features a minimum run timer which ensures that once started in heating or cooling mode the compressor and other associated components remain running for a minimum of 5 minutes The unit will not respond to a change in mode for this period of time This prevents premature wear of components Please bear this in mind when carrying out maintenance to the unit 12 ALARM CODES POWER BOARD On centre of power board is located jumper J3 which should be in position 1 2 INT ID COM The power board also features a signalling green LED which provides information 1 flash every 3 seconds normal operation 2 flashes every 3 seconds serial communication error ALARM CODE EST the power board is not receiving the data sent by the terminal 3 flashes ev
26. ust be connected to the T terminal on the power board similarly for the T terminal in case the cables are connected in the opposite order the instrument will not be damaged To PCB in electrical panel of air conditioning unit x ws 5 Finally close the instrument moving the front panel onto the rear shell with a hinge movement in the opposite way as used for opening First the long side of the front panel near the display is snapped onto the rear shell then the opposite side being careful that the terminal pins slide into their corresponding female terminals USER INTERFACE DESCRIPTION THE CONTROL IS ACTIVE 5 SECONDS FROM THE TIME UNIT IS ELECTRICALLY SUPPLIED FUNCTIONS OF THE BUTTONS FRONT BUTTONS These are placed on the front panel of the instrument These allow the immediate setting of the desired temperature set point and with them the parameters could be modified While unit is ON Pressing simultaneously the front buttons for one second the display will show up the set point where room temperature was showed before Pressing simultaneously the front buttons the display will show up the software version for five seconds SIDE BUTTONS These buttons allow access to all the other functions of the control Side buttons clock Display Front buttons fan MTWTFrS S ba bd AR A NA BBE vi resume Indicates change value of parameters Probe measurement or set point Thermom
27. ust be accompanied by this identification code IDENTIFICATION CODE FOR THE TERMINAL THERMOSTAT BASIC TERMINAL NAME ACCESSORIES TT Type of control No of speeds of the indoor fan INTERNAL FACTORY CODES No of cooling stages Application P Programmable hic of heatine cisges T vena only Programming schedule Heat pump SP Free cooling Your new LENNOX Thermostat has been designed to provide accurate control and display of room temperature In addition it will also display all relevant information pertaining to your system The clearly marked buttons and informative display make it extremely easy to understand and simple to use Please take a few moments to read the brief instructions and familiarize yourself with the various functions in order to obtain maximum benefit from this truly unique electronic control TERMINAL THERMOSTAT INSTALLATION For correct installation the following warnings must be heeded e Always disconnect the power supply before performing any operations on the board during assembly maintenance or replacement e The terminal should be fastened to the wall vertically allowing for air to circulate through the instrument s vent holes in order to detect the correct ambient temperature e Avoid places where the measurement of the ambient temperature by the internal sensor may be altered such as outside walls near doors leading outside in direct sunlight etc Terminal installation The i
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