Home

Service Manual

1. A1P PRINTED CIRCUIT BOARD PS TO INDOOR A2P PRINTED CIRCUIT BOARD POWER SUPPLY USS WS BS1 BS4 PUSH BUTTON SWITCH 220 240V 50Hz UNIT 25 C1 C3 CAPACITOR N x AMET dy EEES LIR DS1 DIP SWITCH a A2P A2P L x r e ee F1U FUSE T 6 3A 250V ze BLK WHT RED Oe HAP Bee H1P H3P HSP SN DS1 O X1MQ F6U FUSE T 3 15A 250V aoe E pe al NOTE 3 H1P H7P PILOT LAMP SERVICE MONITOR ORANGE GRN E BS1 BS2 BS3 BS4 15 MP HAP FLASHING LAMP Z1F eid SERVICE MONITOR GREEN au X205A BACK 4 PF eo 8 FRONT K11M MAGNETIC CONTACTOR EL COMPO BOX KiR MAGNETIC RELAY Y1S K10R MAGNETIC RELAY 666006 90 NOTE 2 LR REACTOR X5A M1C MOTOR COMPRESSOR OE M1F MOTOR FAN SHZ PS SWITCHING POWER SUPPLY LIR X6A 9 Z LIR KIR SE R1 RESISTOR 9 X25A Sas R2 RESISTOR o_o RIT THERMISTOR AIR KF V2R IN S1PH R2T THERMISTOR DISCHARGE VAT y R3T THERMISTOR SUCTION aa XODA Y1S R4T THERMISTOR COIL R5T THERMISTOR COIL MIDDLE R10T R1T R2T R3T R4T RST R6T R6T THERMISTOR LIQUID e Fe a A a R10T THERMISTOR FIN t 5 YIE RC SIGNAL RECEIVER CIRCUIT ji li i SHS S1PH HIGH PRESSURE SW
2. E X4 X3 X2 X1 KFR KCR F1U KHuR O 2 2 ADAPTOR FOR WIRING YC OPTIONAL ACCESSORY X1A F2U NOTES 1 C TERMINAL oo CONNECTOR EF FIELD WIRING 2 IN CASE USING CENTRAL REMOTE CONTROLLER CONNECT IT TO THE UNIT IN ACCORDANCE WITH THE ATTACHED INSTALLATION MANUAL 3 X33A X35A ARE CONNECTED WHEN THE OPTIONAL ACCESSORIES ARE BEING USED 4 CONNECT POWER OF ADAPTOR FOR WIRING TO TERMINAL BLOCK X2M OF INDOOR UNIT DIRECTLY 5 IN CASE OF MAIN SUB OVERCHANGE SEE THE INSTALLATION MANUAL ATTACHED TO REMOTE CONTROLLER 6 SYMBOLS SHOWS AS FOLLOWS RED RED BLK BLACK WHT WHITE YLW YELLOW GRN GREEN ORG ORANGE BRN BROWN PNK PINK GRY GRAY BLU BLUE SHOWS ONLY IN CASE OF PROTECTED PIPES USE HO7RN F IN CASE OF NO PROTECTION N oo X35A s B 8 MODEL OUTDOOR UNIT SHOWN IN THIS DIAGRAM SHOWS THE OUTLINE OF PRODUCT FOR THE DETAIL SEE WIRING DIAGRAM ATTACHED TO OUTDOOR UNIT 2 1 2 FHQG71 140CVEB INDOOR UNIT H3P A1P PRINTED CIRCUIT BOARD LIGHT EMITTING DIODE FILTER SIGN RED C105ICAPACITOR M1 F H4 FUSE T 3 15A 250V 5 LIGHT EMITTING DIODE DEFROST ORANGE LIGHT EMITTING DIODE _ HSP SERVICE MONITOR GREEN MAGNETIC RELAY M1P H6P MOTOR INDOOR FAN LIGHT EMITTING DIODE LIGHT EMITTING DIODE ELEMENT WASHING RED VENTI
3. Is a drain pump connected to the indoor unit PCB YES NO Does the drain pump work after restarting operation Set to emergency and check the voltage of X25A 220 240 VAC NO NO YES YES Is the drain water level YES abnormally high NO Is the float switch NO connected to X15A YES Remove the float switch from X15A short circuit X15A and restart operation Error is displayed again NO YES i Note If 53 is detected by a PCB without X15A the PCB is defective 110 Connect the short circuit connector Replace the short circuit connector Replace the indoor unit PCB Connect the drain pump Replace the indoor unit PCB Replace the drain pump Defective drain system Connect the float switch Replace the float switch Replace the indoor unit PCB Service Diagnosis SiBE281013 Troubleshooting by Remote Controller 4 6 Indoor Unit Fan Motor Abnormality Remote Controller Display Applicable Models Method of Error Detection Error Decision Conditions Supposed Causes Troubleshooting a a Jn Dia po All models of indoor unit Detection of abnormal rotation speed of fan motor by signal from the fan motor The error is generated when the rotation speed of the fan motor are not detected while the output voltage to the fan is at its maximum Defective indoor unit fan motor Breaking
4. Temperature difference for cooling should be between 8 and 18 C YES NO Does any frost generate around inlet port of indoor unit heat exchanger or outlet port of electronic expansion valve YES Does indoor unit airflow rate down NO Is the level of high pressure higher than normal level YES NO Possible causes as follows Insufficient compression of compressor Insufficient circulation of refrigerant Defective electronic expansion valve 92 Does the heat load increase after installation of the unit een Normal NO Possible causes as follows Incorrect selection of model Affection of direct sun Additional unit installation should be considered Is the operation current less than specified level YES NO Refrigerant shortage possibly generates trouble Clogged air filter Soiled heat exchanger After vacuum drying charge correct amount of refrigerant Check the each section Defective fan motor Refer to troubleshooting 5 Possible causes as follows Refrigerant overcharge Air in refrigerant system Soiled heat exchanger Check the each item Short circuit of supply air Disturbing item in airflow Defective fan motor of outdoor unit Refer to troubleshooting E Check the each item Service Diagnosis SiBE281013 Symptom bas
5. 7 N q E Ti oe e y a r ES i a ACC COMP Indoor Unit Outdoor Unit Around Temperature O Dust Replace the electronic expansion difference e Choked moisture expansion valve mechanism O Reduced effective pipe diameter due to adherent contamination etc 2 Accumulator Frosting e Choked moisture Blow a nitrogen gas and then replace the refrigerant 3 Distributor Temperature O Dust Replace the heat difference e Choked moisture exchanger or distributor O Reduced effective pipe diameter due to adherent contamination etc 4 Field piping Temperature e Collapsed pipe Replace the pipe difference 5 Stop valve Temperature The stop valve is not fully open Open the stop valve fully difference Service Diagnosis 175 Troubleshooting by Remote Controller SiBE281013 ee SEN Check for Inadequate Refrigerant As criteria for judging whether refrigerant is inadequate or not refer to the following operating conditions lt Diagnosis of inadequate refrigerant gt In cooling operation 1 As suction superheat degree increases due to refrigerant shortage the electronic expansion valve tends to open opens fully in order to avoid overheat operation 2 In response to decreased evaporator capacity caused by refrigerant shortage capacity is controlled in the inverter in order to maintain low pressure which results in
6. 98 Service Diagnosis SiBE281013 Symptom based Troubleshooting 2 12 Swing Flap does not Operate Applicable Models Method of Error Detection Error Decision Conditions Remark Supposed Causes Service Diagnosis All models of SkyAir series Visual check When ON OFF of the micro switch for positioning cannot be reversed even through the swing flap motor for a specified amount of time about 30 seconds Some functions can force the swing flap into a fixed position although swing mode is selected on the remote controller This is not a unit error but a control function to prevent draft to the customer Before starting the troubleshooting make sure the swing flap is not forced into such a fixed position e g Hot start defrost operation thermostat OFF in heating operation or freeze prevention in cooling operation For details refer to Swing Pattern Selection on P 30 Faulty swing motor Faulty micro switch Faulty connector connection Faulty indoor unit PCB 99 Symptom based Troubleshooting SiBE281013 Troubleshooting AN Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Are the connectors NO Connect correctly correctly connected y YES Is the limit switch s transfer connector correctly connected NO Connect correctly YES Turn the power supply off once and back on and check whether the
7. CHECK 1 Remove the thermistor from the outdoor unit PCB and measure the resistance Remove the thermistor from the indoor unit PCB and measure the resistance NO Is low pressure abnormally low NO YES ele GB Refer to P 165 101 3 Refer to P 169 124 Open the stop valve Connect the connector properly Connect the connector properly Replace the group thermistor Replace the indoor unit intermediate thermistor Replace the outdoor unit PCB A1P Correct the refrigerant system defect Service Diagnosis SiBE281013 Troubleshooting by Remote Controller 4 15 Compressor Motor Lock Remote Controller Display Applicable Models Method of Error Detection Error Decision Conditions Supposed Causes Gn Gn NN hed RZQG Detect the motor lock when the compressor is energized If the motor rotor does not rotate when the compressor is energized m Compressor lock m High differential pressure 2 6 MPa or more starting m Stop valve is not opened Troubleshooting A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Check the installation conditions Is the stop valve open YES Is the UVWN NO wiring normal YES Check and see whether compressor is short circuited or ground YES NO Is high differential pressure starting 2 6 MPa or more NO
8. Field Setting 63 Field Setting from Remote Controller SiBE281013 2 5 2 External Activation from Optional PCB Graph Quiet low noise operation can also be activated from the optional PCB Transmission connector on outdoor PCB X6A Power supply connector on outdoor PCB X77A 3 2 1 LNOPCOM X Output on X801M 12VDC 12mA Maximum wire length 100 meter epee a 2 1110P COM i Quiet low noise operation will start when the contact on LNOP COM is closed and will remain active as long as the contact is closed No field setting on the outdoor unit or by remote controller is required Quiet low noise operation will be ended when the contact is re opened Use of the KRP58M enables the use of an external time clock Capacity priority Same as with the automatic control priority for capacity can be set Prioirity for capacity will be Setting activated by changing field setting 26 0 03 in combination with the closed contact on KRP58M M od First Second Code No Description o oa e Quiet low noise 6 26 Factory Capacity operation setting priority setting Exceptions The Quiet low noise operation will be overruled in the following conditions Pump down residual operation Startup control Defrost operation Oil recovery Sound reduction Sound reduction 4 dBA 4 dBA 5 dBA 5 dBA 64 Field Setting SiBE281013 Field Setting from Remote Controller 2 6 I Demand Function Purpose Set a limitatio
9. Outdoor air thermistor s u3 Discharge ppe ternis ar E Suction pipe thermistor INS Heat exchanger thermistor INS Intermediate heat exchanger thermistor er e GB Refer to P 165 134 Service Diagnosis SiBE281013 Troubleshooting by Remote Controller 4 21 Outdoor Unit PCB Abnormality Remote Controller Display Applicable Models Method of Error Detection Error Decision Conditions Supposed Causes Service Diagnosis t 0 LL RZQG m Detect error by current value during waveform output before compressor startup Detect error by current sensor value during synchronized operation at the time of startup m Detect error using an MP PAM series capacitor overvoltage sensor When over current is detected at the time of waveform output during operating the compressor When the current sensor error during synchronized operation When overvoltage occurs in MP PAM In case of IGBT error In case of faulty in E PROM External factor Noise etc Defective outdoor unit fan motor Broken fuse Disconnection of compressor Defective outdoor unit PCB A1P e IPM failure e Current sensor failure e MP PAM failure Defective IGBT or drive circuit Defective inverter E PROM 135 Troubleshooting by Remote Controller SiBE281013 Troubleshooting A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Is the power supply voltage between 180
10. PS ee a R 410A Service WELL Soir GQI Eco Series Heat Pump R 410A 50Hz RZQG71 140LV1B SiBE281013 Shr GQI Eco Series Heat Pump R 410A 50Hz Ve ajaja doo q naeve AA IV Med SOU ETON NS rte iV te WSS ICONS ee eee een viii lo a Ce tien orante Ix Part 1 General Information nnnannennnnuannnnnnnannnnnsnnnnennensnnnanennsenensn A 1 Model Names of Indoor Outdoor Units ae 2 2 APD INC On A e e eg A 3 Part 2 Functions q cc na amp le IAC HON Sy vennen ten eeen oee nne 5 bel MOOR UNIE ea 5 1 2 Outdoor Unit nnee en ennenenenenensne nnn renner nnee nen 5 Pare 3 DSDECIICATIONS mira O RS olieen AP A 7 Part 4 Remote Controller c cccccccccocooccococoocon Y 1 Wired Remote Controller ooccconcccnnconncnocncncnoncnonanonaninanonanonncnnnnnonanos 10 1 1 Applicable Models ser sntemenmennts deens cet anndixctseireendaeestiectennatestinkuebuns sdenewsieieneccies 10 12 Names and FUNCIONS sesionar ais 11 1 3 MAIN SUB Setting when Using 2 Remote Controllers 15 1 4 Centralized Control Group No SettinQ ccccoooonccconocccnnnonaconncnnanonoos 16 2 Wireless Remote Controller ooocconnconnconcooncocnconnonconanoncncncnnanononons 18 2 1 Applicable Models cooocooccocccoccncconocononococononcnnonocononnnnoncnonnnnnanonannnns 18 2 2 Names a a FUNCIONS sarna 18 23 MAINSUB Se UN entente eindstanden 20 3 DONICE MOS c
11. Printed in Japan 11 2010 AK
12. YES Service Diagnosis Open the stop valve Connect correctly Replace the compressor Remedy the cause Replace the compressor 125 Troubleshooting by Remote Controller SiBE281013 4 16 Outdoor Unit Fan Motor Abnormality el gt an nn Remote Controller Display Applicable RZQG Models Method of Error Abnormality of fan motor system is detected according to the fan speed detected by hall IC Detection when the fan motor runs Error Decision m When the fan runs with speed less than a specified one for 15 seconds or more when the fan Conditions motor running conditions are met m When connector detecting fan speed is disconnected m When the error is generated 4 times the system shuts down Supposed m Defective fan motor Causes m The harness connector between fan motor and PCB is left in disconnected or faulty connector m Fan does not run due to foreign matters tangled m Defective the outdoor PCB Blowout of fuse m External factor Noise etc Troubleshooting A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Is the supply voltage within the range 180 to 220 VAC NO Ask repair so that the supply voltage will be within the normal range Turn OFF the power supply and wait for 10 minutes Remove the connector for fan motor once and then connect it again 126 Service Diagnosis SiBE281013
13. 1 66MPa Tfin lt 66 C eTfin gt 81 C Outdoor unit fan Stop Frequency Restriction RZQG71LV1B RZQG100 140LV1B Lower limit frequency Lower limit frequency Tas 25 C No frequency restriction Upper limit frequency Upper limit frequency Function and Control 43 Function Details SiBE281013 3 2 20 Protection Control by Overall Current Monitors the overall current and restricts the upper limit compressor operating frequency to prevent circuit breakers from exceeding the rated capacity e Outdoor unit current lt upper limit current value e Upper limit compressor operating frequency Maximum frequency Normal operation Outdoor unit current lt upper Outdoor unit current gt upper limit current value Upper limit compressor operating frequency limit current value Upper limit compressor operating frequency 1 step 6 sec 1 step 2 min Outdoor unit current gt upper limit current value Upper limit current A Takes the following values depending on the outside temperature Also varies depending on model Overall current A Current A Current B Current C 3 2 21 Freeze up Prevention Control The thermostat turns OFF due to indoor unit heat exchanger temperature in order to avoid formation of ice on the indoor unit heat exchanger For details refer to Freeze up Prevention Control 3 2 22 Shortage of Refrigerant Detection Control When judged that
14. 2 With the fan motor connector disconnected measure the resistance between each pin then make sure that the resistance is more than the value mentioned in the following table 1 White O 2 Orange O Measurement point Judgement LS Ie 100K oF mors o 1002 or more i O 100K or more 6 O 7 Red O 10 SA Electronic expansion valve connector and coil resistance criteria 1 Orange Measurement point Judgement 1 5 2 Red 3 Yellow 4 Black 5 Gray 6 White 172 Service Diagnosis SiBE281013 Troubleshooting by Remote Controller e161 Check for Factors Causing Wet Operation Referring to the Fault Tree Analysis FTA shown below identify the faulty points Refrigerant Faulty crankcase heater dwelling Frequent starts and stops of the compressor Excessive refrigerant charging Refer to RASANE Faulty electronic Faulty valve coil Are the coil resistance fee and insulation normal ger ale Faulty valve body Faulty superheat o degree control Faulty low pressure sensor Are the voltage characteristics normal Faulty control Faulty suction pipe thermistor Is the connector properly connected Wet operation Are the thermistor resistance Faulty control PCB sn characteristics normal ls the pressure value checked with the Service Checker corresponding to the measurement of the sensor Dirty evaporator lt Is the heat exchanger clogged Faulty fan motor lt Can the fan motor be rotated with hands
15. 2 remote controller Both SS 1 switches on remote controllers are turned to SUB Is there continuity in remote controller wiring YES NO Service Diagnosis Turn the SS 1 switch of one remote controller to MAIN Turn OFF the power supply and restart operation Turn OFF the power once and restart operation Replace the remote controller PCB if any error is generated Replace the remote controller wiring Turn the SS 1 switch of one remote controller to MAIN Turn OFF the power supply and restart operation 157 Troubleshooting by Remote Controller SiBE281013 4 35 Field Setting Switch Abnormality Remote Controller Display Applicable Models Method of Error Detection Error Decision Conditions Supposed Causes 158 el UD 1o gt a All models of indoor unit Incorrect combination indoor unit and outdoor unit Improper field setting Defective indoor unit PCB and wrong wiring Defective power supply PCB connection Indoor outdoor indoor indoor unit transmission wiring Defective remote controller wiring Defective indoor unit PCB Failure for setting the number of simultaneous multi units Wrong wiring of crossing transition wire Defective multi remote controller connection Faulty connection of optional equipment Service Diagnosis SiBE281013 Troubleshooting Troubleshooting by Remote Controller A Caution Be sure to turn off power switch before connect
16. Causes B Improper capacity setting adaptor m Mismatching of type of PCB Troubleshooting A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Has the PCB been replaced Is the type of POB correct Replace with a correct PCB i Note the correct capacity setting adaptor connected to the outdoor unit PCB Mount the correct capacity setting adaptor correctly Reset and then restart Capacity setting adaptor is not connected at factory Capacity is written in E7PROM Capacity setting adaptor is required only when the PCB was replaced with a spare PCB Service Diagnosis 147 Troubleshooting by Remote Controller SiBE281013 4 29 Refrigerant Shortage Alert Remote Controller Display Applicable Models Method of Error Detection Error Decision Conditions Supposed Causes Troubleshooting nn gt p gt ap RZQG Refrigerant shortage is detected according to the electronic expansion valve opening degree and measured temperatures and pressures In cooling operation When the electronic expansion valve opens fully and low pressure is below 0 25 MPa continuously for 30 seconds In heating operation When the electronic expansion valve opens fully and the suction superheat is large more than 20 C continuously for 60 seconds Even if error occurs operation will continue m Stop valve is
17. Disconnection of electronic expansion valve harness Defective connection of electronic expansion valve connector Defective each thermistor and mounting thermistor Defective pressure sensor Defective outdoor unit PCB Abnormal wet operation Service Diagnosis SiBE281013 Troubleshooting by Remote Controller Troubleshooting A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Turn OFF the power supply and turn the power ON again NO Error is displayed again YES electronic expansion valve connector properly connected to the outdoor unit PCB 1 YES NO Connect properly Is the coil resistance of the electronic expansion valve normal CHECK 7 NO Replace the coil of the electronic expansion valve YES Is the temperature sensor of each thermistor suction pipe discharge pipe intermediate heat exchanger and heat exchanger distributor pipe thermistors mounted properly NO Mount properly YES i Note x1 Connector and indoor unit PCB Model Connector for electronic expansion valve RZOG XATA ej 0 4 Refer to P 172 Service Diagnosis 129 Troubleshooting by Remote Controller Are the characteristics of each thermistor normal CHECK 1 NO YES Are the pressure sensor characteristics normal CHECK 5 YES NO Actually
18. Soiled air filter of indoor unit Soiled heat exchanger of indoor unit There is some interfering item in airflow of indoor unit Defective indoor unit fan Troubleshooting 88 AN Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Is the type of remote controller wired or wireless Is the operation lamp of remote controller flashing wired YES Diagnose based on the error code on remote controller Wireless Is the operation lamp of indoor unit signal receiving part flashing Heating Indoor nit Cooling Outdoor uni Does the fan rotate NO Defective fan motor Check the YES magnetic switch and auxiliary switch for fan motor Is the filter soiled YES NO Cleaning Is there any item YES TORNE interfering airflow Remove the interfering item NO Is the heat YES exchanger soiled Cleaning of the heat exchanger NO Possible causes as follows Refrigerant overcharge Ma e After vacuum drying charge Mixing of air in refrigerant system i Defective pressure switch correct amount of refrigerant Check the pressure switch Service Diagnosis SiBE281013 Symptom based Troubleshooting 2 5 After Unit Shuts Down It cannot be Restarted for a While Applicable Model All models of SkyAir series Supposed m Overcurrent relay for compressor Causes Overcurrent relay may act due to the fol
19. abnormal noises vibration operating status etc of the compressor Refer to P 170 144 Service Diagnosis SiBE281013 Troubleshooting by Remote Controller 4 26 Transmission System Abnormality between Control and Inverter PCB em erm Remote Controller Display Applicable RZQG Models Method of Error Check whether transmission between control and inverter PCB is carried out normally Detection Error Decision When the transmission is not carried out in a specified period of time or longer Conditions Supposed Defective outdoor fan motor Causes Defective of fan motor connector contact Troubleshooting Defective control and inverter PCB External factor Noise etc A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Is the fan motor NO connector connected YES Disconnect the fan motor connector and turn ON again Te Wis displayed 4 1 is not displayed NO Service Diagnosis YES Connect the connector Replace the fan motor Inverter transmission sete due to the oar of fan motor Replace the outdoor PCB A1P 145 Troubleshooting by Remote Controller SiBE281013 4 27 Open Phase or Power Supply Voltage Imbalance mo Remote Controller Display Applicable RZQG Models Method of Error The error is detected according to the voltage waveform of main circuit capacitor built in De
20. and 220 VAC NO Request an improvement to make the power supply voltage fall within the standard range YES Turn OFF the power supply and remove the connector for fan motor and then operate again NO nt du L 1 is displayed Replace the fan motor YES Check the resistance value for the fan motor j N Is the resistance value of O Replace the fan motor the fan motor normal YES Does the fuse NO Replace the fuse Use only specified fuses have continuity YES Is the lead wire connected to the PCB and the compressor securely YES NG Connect securely Turn the power ON again Error is displayed again Replace the outdoor unit PCB A2P External factor Noise etc Are Refer to P 172 136 Service Diagnosis SiBE281013 Troubleshooting by Remote Controller 4 22 Radiation Fin Temperature Rise Remote Controller Display Applicable Models Method of Error Detection Error Decision Conditions Supposed Causes Service Diagnosis E 6 LJ RZQG Radiation fin temperature is detected by the radiation fin thermistor When the temperature of the inverter radiation fin rises abnormally due to faulty heat dissipation Actuation of fin thermal switch Insufficient cooling of inverter radiation fin High outdoor air temperature Blocked suction inlet Blocked discharge outlet Dirty radiation fin Disconnection of
21. check the inter unit branch wiring connection 4 When the error code L4 is displayed on the remote controller there is possibility that the airflow passage is closed e When there is no error code display cooling operation continues However this control is once again performed after refrigerant is recovered by pump down and at the time of the first operation after the outdoor unit PCB replacement Function and Control SiBE281013 Field Setting Part 6 Field Setting s OO hi Ol q eneen nebe eten 50 A orange neren tenet 50 1 2 Remote Controller Confirmation naan venan en venene venen venen eenen 50 A e 51 1 4 Precautions Regarding Test Run occccoccnncccnncnnnccnnnconncnconcnnoncnnnnnconcnonanos 51 1 5 Failure Diagnosis at the Moment of First Installation 52 Field Setting from Remote Controller ccooccccconcococccnnnonononannnnnanos 53 2 1 Wired Remote Controller civoocvcooino arca 53 2 2 Wireless Remote Controller oocccconncccccnccocncconcnononnnonacoconcnononnnnnnos 56 2 3 Overview of the Field Setting on the Outdoor Units 57 2 4 Setting Contents and Code No for Outdoor Units 62 2 5 Quer Low Nose Opera snee 63 20 Demand FUNCTION iiciin a heien 65 2 7 Setting for Low Humidity Application nun anrnnn ene nenen vennen 66 28 Detost SIAM Sc o do ales 70 Field Setting
22. swing flap motor swings when the power supply is turned back on Disconnect X14A turn the power supply off once and back on and Does the flap swing check if the limit switch has continuity when the power supply it turned back on Turn the power supply off once and back on and measure the output Is continuity no voltage of connector when the continuity reversed power supply is turned back on lt i Note Model Connector for swing flap motor PCB FCOG Replace the indoor unit PCB Replace the swing motor assembly FHQG X36A 100 Service Diagnosis SiBE281013 Troubleshooting by LED Indications 3 Troubleshooting by LED Indications 3 1 Troubleshooting by LED on the Indoor Unit Foreword 3 2 Remark Troubleshooting can be carried out by service monitor LED green Blinks when normal O LEDon e LED off o LED blinks Normal Monitor Contents Processing HAP LED A Indoor unit normal gt Outdoor unit troubleshooting Defective indoor unit PCB assy Defective power supply or defective PCB assy or broken transmission wire between indoor and outdoor unit Incorrect transmission wiring between indoor and outdoor unit If outdoor unit s LED A is OFF proceed outdoor unit s troubleshooting If outdoor unit s LED A blinks defective wiring or indoor or outdoor unit PCB assy Note 1 When the INSPECTION TEST button of remote controller is pushed INSPECTION display bli
23. Are the motor coil Faulty control resistance and insulation PCB including normal Capacity setting Decreased Decreased fan airflow rate Note Reference values for superheat degree to be used in the judgement of wet operation 1 Suction pipe superheat degree 4 C or more 2 Discharge pipe superheat degree 5 C or less The values above must be used only for reference purposes Even it is operated within the range above operation may be normal in other conditions Service Diagnosis 173 Troubleshooting by Remote Controller SiBE281013 ele MB Check for Excessive Refrigerant Charging As criteria for judging whether refrigerant is excessively charged or not refer to the following operating conditions lt Diagnosis of excessive refrigerant charging gt In cooling operation 1 Because high pressure rises due to excessive charging overload control is carried out and capacity tends to run short 2 Considering pressure load compressor discharge pipe temperature is low 3 Subcooled degree of condensate liquid becomes large Therefore temperature of blown air passing through subcooled part decreases in heating operation Cooling High pressure As compressor frequency decreases low pressure rises Compressor frequency decreases due to high Pressure protection control Low pressure 2 Compressor frequency 1 Maximum frequency Minimum frequency Electronic expansion valv
24. Blink about 25 times for 10 seconds Normally ON for 0 4 second and OFF for 0 4 second Blink about 12 times for 10 seconds 2 Optional accessories refer to adaptor for wiring auto grill and other accessories Service Diagnosis 155 Troubleshooting by Remote Controller SiBE281013 4 33 Transmission Error Between Remote Controller and Indoor Unit Remote Controller Display Applicable Models Method of Error Detection Error Decision JU N gt All models of indoor unit The error is generated when the micro computer detects that the transmission between the indoor and the outdoor unit is not normal over a certain amount of time Normal transmission does not continue for specified period Conditions Supposed Connection of two main remote controllers when using 2 remote controllers Causes Defective remote controller Defective of indoor unit PCB External factor Noise etc Troubleshooting A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred SS1 of both remote controllers is setto MAIN Using 2 remote controllers control YES YES Set one remote controller to SUB turn the power supply off once and then back on NO NO Operation returns to normal when the power is turned off momentarily All indoor PCB micro computer monitors blink NO NO Replace indoor unit PCB YE
25. Check the system for each condition in normal operation through LED displays Refer to nerd Oln test operation information in table on the right aln line inspection operation Error display Normal OError Night time quiet operation display Normal operation OLow noise level 1 O Low noise level 2 OOLow noise level 3 Demand level display 30 Normal operation 040 Demand 0050 Demand OODemand 72 Field Setting SiBE281013 Field Setting from Outdoor Unit PCB 3 2 3 Setting Mode 2 In this mode settings for the following items can be made Press the MODE BS1 button for 5 seconds and set to Setting mode 2 lt Selection of setting conditions gt Press the SET BS2 button and set to the setting condition you want y Press the RETURN BS3 button and lt Selection of setting items gt decide the condition Press the SET BS2 button and set the LED display to a setting item 1 y Press the RETURN BS3 button and set to the initial status of Setting mode a Press the RETURN BS3 button and decide the item If you become unsure of how to proceed push the IMODE BS1 button and return to setting mode 1 Display ofsetingiiems Display of setting condition No Goring tom ED dp Sorin cancion ED depay Ena Ena ofelejejojele 30 demand 40 demand setting 50 demand 98 Refrigerant OFF factory setting recovery mode ON ol t_ The figures in the columns un
26. Control SiBE281013 Function Details 3 2 29 Simulated Operation Function In case of a thermistor error simulated operation is performed in two different ways as shown below even while the error is detected A Operation continues while the error code is displayed on the remote controller Applicable thermistors Outdoor air temperature thermistor Heat exchanger distribution pipe thermistor in cooling Intermediate heat exchanger thermistor in heating Liquid pipe thermistor Indoor suction air thermistor Indoor heat exchanger thermistor B Operation continues even the error is detected The remote controller displays error code only when the Inspection Test Run button is pressed Applicable thermistors Remote controller thermistor Radiation fin thermistor i Note In case of a thermistor error other than A and B above an abnormal stop is made and no simulated operation is carried out Applicable thermistors Suction pipe thermistor Discharge pipe thermistor Heat exchanger distribution pipe thermistor in heating Intermediate heat exchanger thermistor in cooling Function and Control 47 Function Details SiBE281013 3 2 30 Test Operation Control 48 When operating in cooling mode for the first time after installation or operating in cooling mode by pressing the indoor unit inspection button the unit will perform a test operation for about 3 minutes Make sure that the initial operation after in
27. E O EEEE N 1 Operation mode selector button 11 LCD with backlight W DAIKIN 4 Up button A 5 Down button Y 6 Right button gt 7 Left button lt q 8 On Off button 3 Menu Enter button gt En 10 Cancel button 2 Fan speed control button Operation mode selector button Press this button to select the operation mode of your preference Available modes vary with the connecting model Fan speed control button Press this button to select the fan speed of your preference Available fan speed vary with the connecting model Menu Enter button Used to indicate the main menu Used to enter the setting item selected Up button A Be sure to press the part with the symbol A Used to raise the set temperature The next items on the upper side will be highlighted The highlighted items will be scrolled continuously when the button is kept pressed Used to change the item selected Down button y Be sure to press the part with the symbol w Used to lower the set temperature The next items on the lower side will be highlighted The highlighted items will be scrolled continuously when the button is kept pressed Used to change the item selected Right button Be sure to press the part with the symbol Used to highlight the next items on the right hand side Each screen is scrolled in the right hand direction Home leave settings are enabled with this button kept pressed for at least
28. Is there any foreign matter around the fan Remove the fan motor connector Is the fan NO rotatable easily by hand YES CHECK 6 Check the resistance value for the fan motor Is the resistance value of the fan motor normal NO YES Does the fuse F6U have continuity NO YES Properly plug the fan motor connector and then turn the power ON again Error is displayed nee NO Refer to P 172 Service Diagnosis Troubleshooting by Remote Controller Remove the foreign matter Replace the fan motor Replace the fan motor Replace the fuse Replace the outdoor unit inverter PCB External factor Noise etc 127 Troubleshooting by Remote Controller SiBE281013 4 17 Electronic Expansion Valve Abnormality Gp gt gt nn Remote Controller Display Applicable Models Method of Error Detection Error Decision Conditions Supposed Causes 128 RZQG The error is detected whether the continuity of electronic expansion valve exist or not The error is detected by the suction pipe superheat degree discharge pipe superheat degree and electronic expansion valve opening degree No common power supply when the power is ON When the following conditions are met e Suction pipe superheat degree lt 4 C e Minimum electronic expansion valve opening degree e Discharge pipe superheat degree lt 5 C Defective electronic expansion valve
29. PCB Service Diagnosis SiBE281013 Troubleshooting by Remote Controller 4 9 Thermistor Abnormality Remote Controller Display Applicable Models Method of Error Detection Error Decision Conditions Supposed Causes Troubleshooting 6 4 Ti L Gn gt gt Dd gt A All models of indoor unit The error is detected by temperature detected by thermistor When the thermistor becomes disconnected or shorted while the unit is running Defective connector connection Defective thermistor Defective indoor unit PCB Broken or disconnected wire A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Check the connector connection Is it connected properly Correct the connection Check the thermistor resistance S CHECK 1 Is it normal ES Error Code Defective Thermistor Heat exchanger thermistor NO NO Replace the thermistor Replace the outdoor unit PCB Symbol ES Intermediate heat exchanger thermistor EB Suction air thermistor ere 4 Refer to P 165 Service Diagnosis 115 Troubleshooting by Remote Controller SiBE281013 4 10 Humidity Sensor System Abnormality Remote Controller Display Applicable Models Method of Error Detection Error Decision w gt p UN FCQG Even if error occurs operation still continue The error is detected by humidity output voltage detected by humi
30. RIOT ARTS Ee POSITION OF TERMINAL L D 2 REFER TO THE OPTIONAL MANUAL 4 COLORS BLK BLACK RED RED BLU BLUE WHT WHITE YLW YELLOW ORG ORANGE GRY GRAY GRN GREEN PS SWITCHING POWER SUPPLY Ri RESISTOR R2 _ RESISTOR THERMISTOR COIL THERMISTOR COIL MIDDLE THERMISTOR LIQUID THERMISTOR FIN SIGNAL RECEIVER CIRCUIT HIGH PRESSURE SWITCH SIGNAL TRANSMISSION CIRCUIT IGBT POWER MODULE DIODE BRIDGE IGBT TERMINAL BLOCK SOLENOID VALVE 4 WAY VALVE Z1C Z8C NOISE FILTER FERRITE CORE Z1F Z4F NOISE FILTER TERMINAL BLOCK FOR CONNECTION WIRING TO X6A E CONNECTOR 3 THE POSITIONS OF THE SELECTOR SWITCHES AIP RELAY CONNECTOR DS1 INDICATE FACTORY SETTING BACK KiM FRONT FIELD WIRING REFER TO THE SERVICE MANUAL FOR DETAILS EL COMPO BOX 3D069265 181 Precautions for New Refrigerant R 410A SiBE281013 3 Precautions for New Refrigerant R 410A 3 1 Outline 3 1 1 About Refrigerant R 410A m Characteristics of new refrigerant R 410A 1 Performance Almost the same performance as R 22 and R 407C 2 Pressure Working pressure is approx 1 4 times more than R 22 and R 407C 3 Refrigerant composition Few problems in composition control since it is a Quasi azeotropic mixture refrigerant a HFC units Units using new refrigerants HCFC units Refrigerant name R 407C R 410A Composin No
31. Setting from Remote Controller Graph 1 Target evaporating temperature control in case of factory setting 16 26 2 01 Te target acceptable area Remote controller setting temp CC Te target limited lt 20 C 20 to protect the comp Te target limited o 15 lt Indoor temp 11 not to rising wetbulb 10 Te see note target acceptable area Indoor temp gt setting y gt Te target down Indoor temp lt setting 5 gt Te target up Te target limited 7 gt Indoor temp 25 o Te target limited gt 2 C not to sweat 4 not to Sese Freeze protection 40 min integrated coil temp lt 1 C 5 15 20 25 30 Indoor Temp C DB Note Te by LP sensor RZQG Series Field Setting 67 Field Setting from Remote Controller SiBE281013 Graph 2 Target evaporating temperature control when low humidity application is selected Field setting 16 26 2 03 Te target acceptable area Remote controller setting temp Te target j e CC Te target limited lt 20 C 20 to protect the comp Freeze protection 40 min integrated coil temp lt 1 C 15 20 25 30 Indoor Temp C DB Note Te by LP sensor RZQG Series 68 Field Setting SiBE281013 Field Setting from Remote Controller Graph 3 Target evaporating temperature control when low humidity application freeze up operation prevention is selected Field setting 16 26 2 04 Te target acceptable area Remot
32. a decrease in frequency 3 Because of 1 and 2 above the compressor frequency decreases despite a large difference large load between temperature set by the remote controller and indoor suction temperature resulting that cooling capacity becomes unavailable 4 If refrigerant shortage worsens the electronic expansion valve remains fully open and suction superheat degree further increases In addition because the compressor frequency drops to the level of the lowest frequency 52 Hz and the refrigerant flow rate decrease low pressure cannot be maintained Refrigerant Abnormal refrigerant _ Shortage warning 3 As compressor frequency decreases high pressure decreases Actual high pressure Maintains a certain level of low pressure When the refrigerant flow rate decrease it is impossible to E maintain a low pressure As the electronic expansion valve opening degree reaches the maximum i suction superheat degree increases High pressure 1 Low pressure 2 Suction superheat degree Compressor frequency In response to decreased evaporator capacity caused by refrigerant shortage capacity is controlled in the inverter in order to maintain a low pressure which resulting in a decrease in frequency Reaches the lowest frequency The maximum opening degree of the electronic expansion valve 480 pulses Avoid overheat operation b
33. anen eneen 101 3 1 Troubleshooting by LED on the Indoor Unit ae 101 3 2 Troubleshooting by LED on Outdoor Unit PCB ane 101 Troubleshooting by Remote Controller aanrennen 102 4 1 Procedure of Self diagnosis by Remote Controller 102 42 error Codes and Descrip 106 43 Salet DEVICES rada 107 4 4 Indoor Unit PCB Abnormality nanne aa 108 4 5 Drain Water Level System Abnormality aan aneen eneen 109 4 6 Indoor Unit Fan Motor Abnormality anneer eenen nennen 111 SiBE281013 4 7 Capacity Setting Abnormality aaan en enneenenenens ennen vens 112 4 8 Transmission Error between Indoor Unit PCB and Adaptor PCB 113 4 9 Thermistor Abnormality aoe enenn ee eneerenenenen ennen eneneenenenn 115 4 10 Humidity Sensor System Abnormality aaan oneens en eeen 116 4 11 Remote Controller Thermistor Abnormality annen eneen 117 4 12 Outdoor Unit PCB Abnormality annen eeeenen ene nnnenenens 118 4 13 High Pressure Abnormality Detected by the High Pressure Switch 119 4 14 Actuation of Pressure SenSOT occccconcnncococnnconconononcnnononenononnnononcnnonancnnonos 123 415 Gompressor Motor dock tenet 125 4 16 Outdoor Unit Fan Motor Abnormality annen eneen en eeens 126 4 17 Electronic Expansion Valve Abnormality an eneneneen 128 4 18 Discharge Pipe Temperature Control eneen eenen neen eenen 131 4 19 High Pressure Switch System Abnormality aaneen 133 4 20 Thermistor System Abnormality naan eenneneeneennn
34. from Outdoor Unit PCB aaan annen ennen ennen 71 3 1 Location of DIP Switch and BS Button annuus err ennn ereen 71 3 2 Field Setting for Outdoor Unit neen eneen en eenen eneen 72 Emergency Operan a idad 77 Ad FOCE Operation seese tE en 77 49 Test Operation SiBE281013 1 Test Operation MN WARNING Live parts can be easily touched by accident Never leave the unit unattended during installation or servicing when the service panel is removed Never perform a test run with the discharge piping thermistor R2T and suction piping thermistor R3T removed as this might break the compressor Do not touch the drain pump or fan if the indoor unit is operated without attaching the decoration panel Doing so could result in an electric shock or other injury En Note Note that during the first running period of the unit required power input may be higher This phenomenon originates from the compressor that requires a 50 hour run in period before reaching smooth operation and stable power consumption 1 1 Pre run Checks Items to check Electrical wiring O Is the wiring as mentioned on the wiring diagram Inter unit wiring Make sure no wiring has been forgotten and that there are no missing Earth wire phases or reverse phases O s the unit properly grounded O Is the wiring between units connected in series correct O Are any of the wiring attachment screws loose O s the insulation resistance at least 1 MQ Use a 500 V meg
35. installed close to the sea shore direct exposure to the sea breeze should be avoided If you need to install the outdoor unit close to the sea shore contact your local distributor Organization DAIKIN INDUSTRIES LTD AIR CONDITIONING MANUFACTURING DIVISION Scope of Registration Organization DAIKIN INDUSTRIES THAILAND LTD Scope of Registration ORGANIZA A ISO s _Allofthe Daikin Group s business 14001 facilities and subsidiaries in Japan are certified under the ISO 14001 Cap Y CER TI Nanos THE DESIGN DEVELOPMENT AND MANUFACTURE OF 3 COMMERCIAL AIR CONDITIONING HEATING COOLING E 2 ILa international standard for REFRIGERATING EQUIPMENT COMMERCIAL HEATING SEER A o environment management EQUIPMENT RESIDENTIAL AIR CONDITIONING ISO 9001 Mayr ro COMPONENTS INCLUDING ee EQUIPMENT HEAT RECLAIM VENTILATION AIR JMI 0107 CLEANING EQUIPMENT MARINE TYPE CONTAINER JQA 1452 REFRIGERATION UNITS COMPRESSORS AND VALVES COMPRESSORS USED FOR THEM DAIKIN INDUSTRIES LTD Head Office Umeda Center Bldg 2 4 12 Nakazaki Nishi Kita ku Osaka 530 8323 Japan Tokyo Office Dealer JR Shinagawa East Bldg 2 18 1 Konan Minato ku Tokyo 108 0075 Japan http www daikin com global_ac All rights reserved e Specifications designs and other content appearing in this brochure are current as of November 2010 but subject to change without notice SiBE281013
36. is displayed Cool Set temperature Za 20 C 2 lt Field setting menu screen gt Select KEIEN ORS ige in the field setting menu and EISTE getting press Menu Enter button Test operation ON OFF Register Service Contract Group No setting screen is displayed Indoor unit Airnet No set Outdoor unit Airnet No set HRe turn Setting Ww 3 lt Group No setting gt Select Group No setting Group and press Menu Enter Group No setting button Group No setting Group Group No setting Group screen is displayed Group No setting Unit Return Setting 4 lt Group No setting Group gt Select the group No by using A Y Up Down button Group No setting Group Press Menu Enter button Group No Set 1 00 HRe turn Re lease NOTICE Enter the group No and installation place of the indoor unit into the attached installation table Be sure to keep the installation table with the operation manual for maintenance Remote Controller 17 Wireless Remote Controller SiBE281013 2 Wireless Remote Controller 2 1 Applicable Models Model Series FCQG E FHQG C Remote Contoler a BRC7GES 2 2 Names and Functions Receiver 3P107422 31W 18 Remote Controller SiBE281013 DISPLAY A SIGNAL TRANSMISSION n DISPLAY u 66 42 66 Ay 66 3 28 OPERATION MODE SET TEMPERATURE This display shows the set tempera ture DISPLAY r
37. lower digit diagnosis Press the UP or DOWN button and change the error code lower digit until the continuous error code matching buzzer 2 is generated B The lower digit of the code changes as shown below when the UP and DOWN buttons are pressed gt 07 gt ete d c e Pade Pn Pha Pm PR Ph PO Po ie E J gt UP button DOWN button 104 Service Diagnosis SiBE281013 Service Diagnosis Normal status Enters inspection mode from normal status when the INSPECTION TEST button is pressed When MODE selector button is pressed or no button is pressed for 1 minute equipment returns to normal status 1 Press INSPECTION TEST button eS Troubleshooting by Remote Controller If no button is pressed for 1 minute equipment returns to normal status 3 Press MODE selector button If no button is pressed for 1 minute equipment returns to normal status 5 Press MODE selector button 105 Troubleshooting by Remote Controller SiBE281013 4 2 Error Codes and Description Remote Controller Contents of Error Reference Page Display e Suction pipe thermistor system abnormality 134 Field setting switch abnormality 158 Transmission error between indoor and outdoor unit piping and wiring 163 mismatch refrigerant shortage Transmission system abnormality between control and inverter PCB 145 System High pressure abnormality detected by the high pressure switch 119 Ou
38. not opened B Insufficient refrigerant amount m Clogged refrigerant piping system A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred i Note Is the refrigerant amount appropriate Collect refrigerant After vacuum drying is complete charge an appropriate amount of refrigerant Check the refrigerant piping system for clogging Refrigerant shortage alarm is indicated but operation continues Refer to P 175 148 Service Diagnosis SiBE281013 Troubleshooting by Remote Controller 4 30 Refrigerant Shortage Error Remote Controller Display Applicable Models Method of Error Detection Error Decision Conditions Supposed Causes Service Diagnosis Y as w gt gt ap RZQG In cooling Detection based on difference in temperature between temperature set by remote controller and indoor suction air temperature electronic expansion valve opening degree compressor frequency and low pressure In heating Detection based on difference in temperature between temperature set by remote controller and indoor suction air temperature electronic expansion valve opening degree during the control of suction air superheating high pressure indoor heat exchanger temperature and indoor suction air temperature In cooling When compressor frequency does not increase even though the load is heavy because the electronic expansio
39. or disconnection of wire Defective contact Defective indoor unit PCB A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Turn OFF the power supply Wait for 10min Is there any foreign matter around Remove the foreign matter the fan NO Is the fan motor harness connected to indoor unit PCB NO Connect correctly connector for fan motor disconnected can the fan be easily turned by hands NO Replace the fan motor CHECK 6 Check for the fan motor connector Is i Note the resistance between each pins above judgement standard NO Replace the fan motor Replace the indoor unit PCB x Connector and indoor unit PCB Model Connector for fan motor FoaG En Are Refer to P 172 Service Diagnosis 111 Troubleshooting by Remote Controller SiBE281013 4 7 Capacity Setting Abnormality Remote Controller Display Applicable Models Method of Error Detection Error Decision Conditions Supposed Causes Capacity setting adaptor Troubleshooting ap me po gt All models of indoor unit Capacity is determined according to resistance of the capacity setting adaptor and the memory inside the IC memory on the indoor unit PCB and whether the value is normal or abnormal is determined The error is generated when the following conditions are fulfilled T
40. out of the indoor operation range 11 CWB e Be sure to set the indoor fan to high speed 2 8 Defrost Start Setting Refer to Defrost Operation on P45 70 Field Setting SiBE281013 Field Setting from Outdoor Unit PCB 3 Field Setting from Outdoor Unit PCB 3 1 Location of DIP Switch and BS Button Various settings are available by using the DIP switches and the BS buttons on the PCB Display Lamp ror HIP H2P H3P H4P H5P H6P H7P Oe ia oe oO e amp MODE TEST HWL L N O P DEMAND O O e A e Ww 09 ep amp de D MODE om RETURN PUMPDOWN BS Button Display l Function or Operating Procedure Symbol Name MODE During Setting mode 1 the lamp is During Monitor mode the lamp OFF blinks 9 TEST During test operation in Setting mode 1 the lamp is ON O During Monitor mode the lamp is HWL When an error occurs during Setting OFF mode 1 the lamp turns ON O Display H4P Durina Setting mode 1 low noise During Monitor mode various Lamp L N O P leval 3 ved combinations of the lamp indicate the following conditions Indication of oil return operation e Indication of outdoor unit class DEMAND During Setting mode 1 demand e Indication of error code the latest level is displayed and up to 2 cycles before e Indication of causes of stepping down Dip Switch MODE Used to change Setting mode BS SET Used to change Setting item and Setting con
41. outdoor unit PCB NO Connect correctly YES Wait for 10 minutes after the unit stops operating then check the following Is there continuity in each protection high ale Replace the high pressure pressure switch switch with no continuity Resistance in normal operation YES 10Q or less Is there continuity NO aans Replace the lead wire YES Replace the outdoor unit PCB A1P i Note x1 Connector and indoor unit PCB Model Connector for high pressure switch PCB RZOG X32A Service Diagnosis 133 Troubleshooting by Remote Controller SiBE281013 4 20 Thermistor System Abnormality DTe x Remote THN LI LI LI Ll LI Controller Display Applicable RZQG Models Method of Error The error is detected according to the temperature detected by each individual thermistor Detection Error Decision When thermistor is disconnected or short circuited during operation Conditions Supposed m Defective thermistor Causes m Defective connection of connector m Defective outdoor unit PCB A1P Troubleshooting A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Check connectors for connection sitnom NO Connect correctly YES Remove thermistor from outdoor unit PCB then measure the resistance using a tester NO Is it normal YES Replace the thermistor Replace the outdoor unit PCB A1P
42. protection device is activated during the emergency operation the unit stops the operation once and restarts three minutes later 4 When there is an error on PCB the emergency operation cannot be used Field Setting 77 Emergency Operation SiBE281013 Operation by the Test Operation Mode 78 As test run by the test operation mode there are two methods as shown below lt Test Operation by Wireless Remote Controller gt 1 Press the Inspection Test Operation button 4 times Press the Inspection Test Operation button 4 times Test operation mode 2 When you press the ON OFF button after setting the test run mode the test run starts lt Test Operation by Outdoor Unit PCB gt 1 Press the Test Operation BS4 button on outdoor unit PCB for 5 seconds After a while the test operation starts Reference e For the initial operation after installation of the unit forced cooling operation continues for three minutes e For the second operation and afterwards after installation the unit forcibly operates for 30 minutes in the set mode Field Setting SiBE281013 Service Diagnosis Part Service Diagnosis Maintenance Inspection aanva onen a 81 Il OVEMEW entree ee ee ae ese eee ee eee 81 Symptom based Troubleshooting cooccccocnccoccccncnccncnccncncnnnnonannnnanoss 83 eM CONG IG Wenden ech enden bedachten 83 2 2 Equipment does not Operate nn E ereneen venen vens 84 2 3 Indoor Un
43. recovery unit is connected onsite to recover refrigerant fully open the expansion valve of the outdoor unit to help the recovery 1 Stop operation 2 Turn ON refrigerant recovery mode by performing the following steps OFF BLINK O ON Press the MODE BS1 button of Setting mode 1 for 5 seconds or more and set to Setting mode 2 Press the SET BS2 button 28 times to set the LED display as shown in the table on the right 1 Press the RETURN BS3 button once Present settings are displayed ojeje e o ojo Press the SET BS2 button once to set the LED display as shown in the table on the right Press the RETURN 853 button once lo make a decison ojejelejeloje When the RETURN BS3 button is pressed once again the electronic expansion valve opens fully 3 Connect a refrigerant recovery unit to perform refrigerant recovery 4 Upon completion of refrigerant recovery turn OFF refrigerant recovery mode by taking the following steps or turning OFF the power of outdoor unit Operating procedure rear Press the SET BS2 button 28 times to set the LED display as shown in the table on the right 1 Press the RETURN BS3 button once Present settings are displayed ojejo ojo ole Press the SET BS2 button once to set the LED display as shown in the table on the right Press the RETURN BS3 button once to make a decision When the RETURN BS3 button is pressed once again the electronic ex
44. reset again NO Is the operation lamp on LCD remote controller blinking YES NO Is the operation lamp on indoor unit signal receiving part blinking YES NO Defective electric component Check the electric system Service Diagnosis Turn ON the power switch or replace the fuse If high harmonics circuit breaker is not used on the inverter compressor replace the circuit breaker Wait until power returns Normal Equipment starts operation 3 minutes later 3 min standby Normal Equipment starts operation 3 minutes later 3 min standby Diagnose based on error code on remote controller Diagnose based on error code on remote controller 85 Symptom based Troubleshooting SiBE281013 2 3 Indoor Unit Fan Operates but Compressor does not Operate Applicable Model All models of SkyAir series Supposed Causes Fuse blown or disorder of contact in operation circuit Defective thermistor Defective indoor outdoor unit PCB Defective magnetic switch Defective power transistor Defective compressor 86 Service Diagnosis SiBE281013 Troubleshooting Symptom based Troubleshooting A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Indoor unit fan runs at set airflow rate In cooling operation When suction air thermistor temperature is higher than set temperature In heating operation When su
45. sure the liquid and gas stop valves are open Opening direction A Liquid side B Gas side Remove the cap and turn counterclockwise with a hex wrench until it stops Be sure to close the front side panel before operation as not doing so can cause electric shock Be sure to turn power on at least 6 hours before starting operation in order to protect the compressor Be sure to set the unit to cooling operation mode Press the inspection test operation button of the remote controller 4 times 2 times in case of a wireless remote controller to go into the test run mode Press the ON OFF button within 10 seconds to start the test run and check the operation status for about 3 minutes The refrigerant pressure may not rise immediately even if the stop valve is opened after an air purge is performed using a vacuum pump This is because the indoor unit refrigerant piping is closed off with electric valves inside This will not create any problems during operation Push the air flow direction adjust button and check if the unit is responding to the new air flow direction position Press the inspection test operation button of the remote controller 2 times to go into check mode and to make sure that the malfunction code displays tr normal In case the malfunction code does not display ti refer to Failure diagnosis at the moment of first installation on page 52 If the inspection test operation button is pressed 4 times dur
46. sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Are there any breaking and wrong wiring of the connecting wires NO YES Is the once connected indoor unit equipment disconnected or the address changed YES NO Does transmission error NO occur to all indoor units YES Are there any breaking and wrong wiring of the connecting wires to the centralized controller NO YES Is the centralized controller setting connector for the centralized controller unit disconnected NO YES 162 Make the wiring correct Reset the all remote controllers power supply at the same time Is the group No for the NO defective indoor unit Make correct setting of the centralized control group No YES Replace the indoor unit PCB Correctly connect the wiring Correctly connect the connector Replace the remote controller PCB Service Diagnosis SiBE281013 Troubleshooting by Remote Controller 4 38 Transmission Error between Indoor and Outdoor Unit Piping and Wiring Mismatch Refrigerant Shortage Remote Controller Display Applicable Models Method of Error Detection Error Decision Conditions Supposed Causes Service Diagnosis De o N RZQG Check the transmission between the indoor and outdoor units with a micro comp
47. the OFF action is selected when programming the schedule timer 17 INSPECTION REQUIRED amp and These icons indicate that inspection is required Consult your installer 18 SET TEMPERATURE DISPLAY gag This indicates the current set temperature of the installation not shown in LIMIT operation or in FAN or DRY mode 19 SETTING SETTING Not used for service purposes only 20 AIRFLOW DIRECTION ICON zie This icon indicates the airflow direction only for installations with motorised airflow flaps 21 NOT AVAILABLE waite ae IS displayed whenever a non installed option is addressed or a function is not available 22 FAN SPEED ICON 222 This icon indicates the set fan speed 23 DEFROST HOTSTART MODE ICON This icon indicates that the defrost hotstart mode is active 24 AIR FILTER CLEANING TIME ICON gt This icon indicates the air filter must be cleaned Refer to the manual of the indoor unit 25 ELEMENT CLEANING TIME ICON 9 This icon indicates the element must be cleaned HRV only 26 VENTILATION MODE BUTTON The ventilation mode button operates the HRV refer to the manual for more details 27 VENTILATION AMOUNT BUTTON amp This button sets the ventilation amount refer to the manual for more details 28 INSPECTION TEST OPERATION BUTTON Not used for service purposes only 29 PROGRAMMING BUTTON This button is a multi purpose button Depending on the previous manipulations of the user the programming button can ha
48. the symbol amp This symbol indicates the action that must be taken or the instruction The instruction is shown in the illustration or near the symbol m After the repair work is complete be sure to conduct a test operation to ensure that the equipment operates normally and explain the cautions for operating the product to the customer 1 1 1 Cautions Regarding Safety of Workers Be sure to disconnect the power cable plug from the plug socket before disassembling the equipment for repair Working on the equipment that is connected to the power supply may cause an electrical shock If it is necessary to supply power to the equipment to conduct the repair or inspecting the circuits do not touch any electrically charged sections of the equipment If the refrigerant gas is discharged during the repair work do not touch the discharged refrigerant gas The refrigerant gas may cause frostbite When disconnecting the suction or discharge pipe of the compressor at the welded section evacuate the refrigerant gas completely at a well ventilated place first If there is a gas remaining inside the compressor the refrigerant gas or refrigerating machine oil discharges when the pipe is disconnected and it may Cause injury If the refrigerant gas leaks during the repair work ventilate the area The refrigerant gas may generate toxic gases when it contacts flames The step up capacitor supplies high voltage electricity to the electrical com
49. with M tap e Condition A is met e Condition C is met e 10 5 minutes elapsed after compressor startup amp OR Indoor unit fan Set fan speed Indoor unit heat exchanger temperature gt 34 C Indoor unit heat exchanger temperature gt indoor suction air temperature 22 C 20 C if outdoor air temperature is lt 5 C Indoor unit heat exchanger temperature gt indoor suction air temperature 17 C 12 C if outdoor air temperature is lt 5 C 37 Function Details SiBE281013 3 2 10 Night time Quiet Operation A Setting by Remote Controller Night time quiet operation can be set by field setting from the wired remote controller By estimating current time based on the change of outdoor air temperature the low noise operation is automatically performed at night from 22 00 to 8 00 by limiting the number of revolutions of outdoor unit fan and the operation frequency of the compressor The time at night is target B Setting by Demand Operation Option Short circuit between COM LNOP on terminal of demand adaptor Low sound running to be done with limited outdoor fan speed compressor running frequency i Note In the case of capacity priority setting Setting the Capacity priority setting from the field setting mode of indoor remote controller the Capacity is prioritized in the operations of both A and B and when the air conditioning load becomes high the low noise operation stops and the normal operation s
50. 240V 50Hz FHQG71CVEB RZQG71LV1B n FHQG100CVEB RZQG100LV1B Ceiling Suspended Type FHQG125CVEB RZQG125LV1B FHQG140CVEB RZQG140LV1B i Note 1 Power supply intake Outdoor unit 2 General Information SiBE281013 External Appearance 2 External Appearance Indoor Units FHQG C Wired Remote Controller 12 00 Set temo Room 2e 280 Cool Bn oo alll ia y BRC1D528 BRC1E51A7 Wireless Remote Controller BRC7G63 Outdoor Units y RZQG71LV1B RZQG100 125 140LV1B General Information 3 SiBE281013 Part 2 Functions he FUNCIONO eersten circos ta cta 5 dat ARA RNE reren eten tenten eedt a et eed 5 TZ OU OOR G steerer arti behe det tebe A 5 Functions SiBE281013 Functions 1 Functions 1 1 Indoor Unit FCQG E FHQG C ltems Features Heat Pump Heat Pump Control Swing pattern selection Switchable fan speed Program Dry High ceiling application Two selectable Wired type thermo sensors Wireless type O 1 EE Te o OE EN COo oo o EE EE O Timer selector O Mould Mould resistant Weatmentfor fer Worx amp Drain water up mechanism o lLonglfefiter O Fitersign OO Cening soling prevention 0 Emergency operation J o SelF diagnosis function o morsan o o Auto coolingiheating change over o Control by 2 remote controles o control by 1 remote controler o Eternal commana conr o Centraized remote
51. 7 The following will be displayed on the screen when a malfunction or a warning occurs during operation Check the malfunction code and take the corrective action specified for the particular model Screen SJ DAIKIN Operation lamp 1 Checking a malfunction or warning en Operation Status Display The operation lamp green starts to blink The message Cool The system stops operating Error Press Menu button will EE 28 gt appear and blink at the bottom of cui C the screen Set temperature Abnormal shutdown Error Press Menu Button The operation lamp green remains on The message Cool Warning The system continues its operation Warning Press Menu button A i will appear and blink at the val 28 bottom of the screen Set temperature Warning Press Menu Button 2 Taking corrective action Press the Menu Enter button to check the error code e Take the corrective action specific to the model Error code 4 Error code Cantact address 0123 456 789 Indoor Unit FXMQA4OPYE Outdoor Unit RWEYQTOPY1 ee Return Applicable model Service Diagnosis 103 Troubleshooting by Remote Controller SiBE281013 4 1 3 Wireless Remote Controller If unit stops due to an error the operation indicating LED on the signal receiving part of indoor unit flashes The error code can be determined by following the procedure described below The error code is displayed when an operat
52. C Function and Control 45 Function Details SiBE281013 Defrost Control Defrosting start Defrosting complete previous control A Hz Compressor Po Four way valve ON ON OFF 150 Electronic pls 480 pie l wet protection control expansion valve O pls 5 60 sec O pls 5 sec ON ON OFF ON i ON OFF Outdoor unit fan Indoor unit fan Step 25 Step 20 Defrost Ending Conditions Defrosting ends when the following conditions have been realized Note that defrosting can be operated for 10 minutes at longest Hp High pressure Tb Heat exchanger distributor pipe temperature Tm Intermediate heat exchanger temperature et Defrost Time gt 10 sec Hp gt 2 45 MPa Defrost Time gt 1 min a Ms Tos 10 Tm gt 12C Tb gt 8 C y e Defrost Time gt 9 min Tm gt 10 C 3 2 27 Outdoor Unit Fan Control when Frost is Adhered During heating when frost has adhered to the outdoor unit heat exchanger and the ventilation flue is blocked the fan sound increases To prevent this fan noise from increasing the number of revolutions of fan is lowered 3 2 28 Emergency Operation e No transmission is performed between indoor and outdoor unit e During cooling the cycle of operation for 20 minutes and stop for 10 minutes is repeated e During heating defrost is performed once every one hour e Under other conditions the same control as the normal control is performed 46 Function and
53. CTOR AMP FIELD WIRING 2 MODEL OUTDOOR UNIT SHOWN IN THIS DIAGRAM SHOWS THE OUTLINE OF PRODUCT FOR THE DETAIL SEE WIRING DIA GRAM ATTACHED TO OUTDOOR UNIT IN CASE USING CENTRAL REMOTE CONTROLLER CONNECT IT TO THE UNIT IN ACCORDANCE WITH THE ATTACHED INSTALLATION MANUAL X15A X25A ARE CONNECTED WHEN THE DRAIN UP KIT IS BEING USED IN ACCORDANCE WITH THE ATTACHED INSTALLATION MANUAL INCASE OF MAIN SUB CHANGEOVER SEE THE INSTALLATION MANUAL ATTACHED TO REMOTE CONTROLLER SYMBOLS SHOWS AS FOLLOWS BLK BLACK RED RED BLU BLUE WHT WHITE PNK PINK YLW YELLOW GRY GRAY GRN GREEN ORG ORANGE BRN BROWN SHOWS ONLY IN CASE OF PROTECTED PIPES USE HO7RN F IN CASE OF NO PROTECTION N ODO oO A Q ONLY FHQG100 140CVEB RED KPR X25A NOTE 4 X33A TL ax X18A X17A SS1 X24A X30A Y HAP NORM EMG 3D069625 TRANSMISSION CENTRAL REMOTE CONTROLLER NOTE 3 ES ui A pop A3P_ SAN ren REMOTE RED d B X20A R H CONTROLLER SSI an OPTIONAL ACCESSORY H3P NOTE 5 __ H4P Ho SH5P o eH6P XTA X A WIRELESS REMOTE CONTROLLER RECEIVER DISPLAY UNIT yy OPTIONAL ACCESSORY ONLY FHQG100 140CVEB 3D069266A Appendix SiBE281013 2 2 Outdoor Unit 2 2 1 RZQG71LV1B Wiring Diagrams
54. Diagnosis 177 178 SiBE281013 Part 8 Appendix ke PNG DIA aM See 179 bt RZOGICV ID a 179 1 2 JSRZQGAOOHAOEV TB ania dE 179 2 WNO DIA AMS A 180 Zet RE AA nn O ected eae atc 180 22 AA etende eoenene ande 181 3 Precautions for New Refrigerant R 410A nennen eenen 182 A A 182 32 RefgerantGINAORS ere scotty testes acted sept e 184 OO DEVICE TOO Si dae tet ene attente 185 Appendix SiBE281013 Piping Diagrams 1 Piping Diagrams 1 1 RZQG71LV1B Electronic expansion valve Filter a Filter Outdoor EE ES HHE heat exchanger 4 way valve Check valve Pressure switch high Service port 5 16 flare Compressor Accumulator Field piping 69 5 C1220T O Field piping 015 9 SZ Accumulator C1220T O Compressor Indoor unit Stop valve Outdoor unit with service port 5 16 flare 3D069535 1 2 RZQG100 140LV1B Electronic expansion valve HEE x EEE heat exchanger ane EE oe oe y Y 4 way valve Pressure switch high HPS Indoor heat exchanger Service port 5 16 flare Compressor Accumulator Field piping 09 5 C1220T O Field piping 015 9 SZ Accumulator 612200 Compressor Indoor unit Stop valve Outdoor unit with service port 5 16 flare 3D069536 Appendix 179 Wiring Diagrams 2 Wiring
55. Diagrams 2 1 Indoor Unit 2 1 1 FCQG71 140EVEB INDOOR UNIT A1P A2P PRINTED CIRCUIT BOARD PRINTED CIRCUIT BOARD A3P C21 HUMIDITY SENSOR UNIT PRINTED CIRCUIT BOARD CAPACITOR C105 CAPACITOR HAP LIGHT EMITTING DIODE SERVICE MONITOR GREEN M1F MiP MOTOR INDOOR FAN MOTOR DRAIN PUMP M1S t M4S RiT MOTOR SWING FLAP THERMISTOR AIR R2T R3T THERMISTOR COIL S1L SS1 FLOAT SWITCH SELECTOR SWITCH EMERGENCY ViR X1M DIODE BRIDGE TERMINAL STRIP X2M TERMINAL STRIP Z1C Z1F FERRITE CORE NOISE FILTER NOISE FILTER POWER SUPPLY CIRCUIT SIGNAL RECEIVER CIRCUIT SIGNAL TRANSMISSION CIRCUIT R1T WIRED REMOTE CONTROLLER THERMISTOR AIR ADAPTOR FOR WIRING F1U F2U FUSE B 5A 250V KCR KFR MAGNETIC RELAY MAGNETIC RELAY KHuR MAGNETIC RELAY Hu X33A CONNECTOR FOR OPTIONAL PARTS CONNECTOR ADAPTOR FOR WIRING X35A CONNECTOR GROUP CONTROL ADAPTOR X2M TO OUTDOOR 1 BLK UNIT NOTE 8 m 2 _WHTHOo 3 REDHO EN X2 HO5VV U4G2 5 Zal NOTE 7 GRN YLW INDOOR UNIT_GRN R2T R3T SIL t VIR C4105 TERMINAL FOR OPERATION DISPLAY FAN COMPRESSOR rms OPERATION X18AX17A SS1 Cm NORM EMG X15A
56. E281013 When using remote controller Set temperature C 34 32 30 28 26 24 22 20 Room temperature thermistor Suction air thermistor Suction air thermistor Y Suction air thermistor Suction air thermistor Suction temperature C 12 14 16 18 20 22 24 26 28 30 32 34 Set temperature C 30 28 26 24 22 20 18 16 13 Filter Cleaning Sign Suction air temperature is Suction air thermistor harer Suction air Suction air thermistor thermistor Suction temperature C 12 14 16 18 20 22 24 26 28 30 32 34 Whether or not to display Filter IEA after operation of certain duration can be selected No display 58 Field Setting SiBE281013 Field Setting from Remote Controller Airflow Rate Set the airflow when thermostat OFF by the combination of Fan OFF at Thermostat OFF 11 21 2 Fan speed heating thermostat OFF 12 22 3 and Fan speed cooling thermostat OFF 12 22 6 A 6 minutes OFF 1 minute LL B 6 minutes OFF 1 minute setting airflow C 6 minutes OFF 1 minute L Set the airflow by the combination of 3 modes as below Second Code No Mode No First Code No Factory Field setting ij Jl l l y y y y gres u u Joe a Jo Ja Jo When thermostat MOM EE ENES EEES cl EEE Heating When defrost hot start Airflow Rate Setting during Heating FCQG Only For the purpose of securing airflow range during heating the number of revolution
57. ITCH X106A 5 5 5 Oo X21A O UO VO Wo 2 O_O 0 X111A X11A X12A X13A Or 7 TC SIGNAL TRANSMISSION CIRCUIT A1P Ag VIR IGBT POWER MODULE 4 Z V2R V3R DIODE BRIDGE POSITION OF N 5 IED WHTIBLU COMPRESSOR TERMINAL M1F VAT IGBT mmm NOTES 1 O TERMINAL 2 REFER TO THE OPTIONAL MANUAL X1M TERMINAL BLOCK 2 50 ECO TERMINAL BLOCK FOR CONNECTION WIRING TO X6A Y1E ELECTRIC EXPANSION VALVE Ul vi w 3 THE POSITIONS OF THE SELECTOR SWITCHES Y1S SOLENOID VALVE 4 WAY VALVE OO CONNECTOR DS1 INDICATE FACTORY SETTING Z1C Z2C NOISE FILTER FERRITE CORE MIC CD RELAY CONNECTOR REFER TO THE SERVICE MANUAL FOR DETAILS 71F 23F NOISE FILTER dd JME FIELD WIRING 4 COLORS BLK BLACK RED RED BLU BLUE WHT WHITE YLW YELLOW ORG ORANGE GRY GRAY GRN GREEN POWER SUPPLY 220 240V 50Hz ATO INDOOR Gp UNIT 11213 N L x A2P H2P H4P H6P 8e OAD HIP H3P HSP H7P DS1 B ON al NOTE 3 BS1BS2BS3BS4 OFF le X205A OTE 2 3D068608 FLASHING LAMP SERVICE MONITOR GREEN MAGNETIC CONTACTOR MAGNETIC RELAY Y1S MAGNETIC RELAY REACTOR MOTOR COMPRESSOR MOTOR FAN UPPER A1P COMPRESSOR TERMINAL Appendix NADA S1PH ORG C4
58. Instantaneous fluctuation of power supply voltage Defective compressor if bearing is scratched Stop valve is not opened A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Check the installation conditions Is the stop valve open YES The compressor is grounded and short circuited NO Service Diagnosis Open the stop valve Replace the compressor 139 Troubleshooting by Remote Controller CHECK 4 Continuity check in the power transistor IGBT Is the continuity normal Turn the power ON and then operate the test operation NO Continue the NO operation normally Error is displayed again YES YES Check the power supply voltage Is instantaneous voltage drop generated YES NO Refer to P 170 140 SiBE281013 Replace the outdoor unit PCB Go to the other troubleshooting Normal operation Correct the power supply Compressor inspection Inspect according to the diagnosis procedure for abnormal noise vibration operating status etc of the compressor Service Diagnosis SiBE281013 Troubleshooting by Remote Controller 4 24 Electronic Thermal Time Lag Remote Controller Display Applicable Models Method of Error Detection Error Decision Conditions Supposed Causes Service Diagnosis em gt lt gt A RZQG The error is det
59. Inverter drive unit varies compressor operating frequency to control capacity and other factors B Electronic Expansion Valve Y1E Provides control to maintain optimum operating condition for high efficiency C Four Way Valve Y1S Changes operation of cooling heating Coil energized heating Coil not energized cooling Outdoor Air Thermistor R1T Used for startup condition control and defrost control Discharge Pipe Thermistor R2T Used for discharge temperature protection during compression operation Suction Pipe Thermistor R3T Used for suction super heat control by electronic expansion valve Heat Exchanger Distributor Pipe Thermistor R4T e Used for calculation of outdoor heat exchanger subcooling during cooling operation e Used for judgement of the defrost IN and OUT condition Intermediate Heat Exchanger Thermistor R5T Used for calculation of high pressure during cooling operation Calculate Pc by detected temperature and R 410A refrigerant characteristics Liquid Pipe Thermistor R6T Used for calculation of indoor unit heat exchanger subcooling during heating operation Radiation Fin Thermistor R10T e Used for outdoor fan speed control e Used for inverter radiation fin temperature control e Used for pressure difference control Indoor Unit FHQG Thermistor RT RIT Suction air thermistor a ai Heat exchanger thermistor Indoor Suction Air Thermistor Cooling Thermostat control
60. LATION CLEAN GREEN MOTOR SWING FLAP SS1 THERMISTOR AIR _ SS2 THERMISTOR COIL SELECTOR SWITCH SELECTOR SWITCH MAIN SUB WIRELESS ADDRESS SET TO OUT DOOR X2M UNIT NOTE 2 INDOOR UNIT A1P p NOTE 3 RIT R2T R3T t SiBE281013 ina M NOTE 2 F2 CENTRAL REMOTE ORG Ip CONTROLLER BLUES P2 B2 RIT BLKIS P1 WIRED REMOTE CONTROLLER OPTIONAL ACCESSORY le NOTE 5 AE B HAP A3P X33A X35A CONTROL BOX X27A l6A5509 0d OO OO BLK GANA NE VIR cy WHF X 0 1 SELECTOR SWITCH EMERGENCY CO DIODE BRIDGE X15A CONNECTOR FLOAT SWITCH NECTOR FOR OPTIONAL PARTS HO5VV U4G2 5 TERMINAL BLOCK _ X24A TERMINAL BLOCK CONNECTOR WIRELESS REMOTE CONTROLLER NOTE 7 NOISE FILTER X25A CONNECTOR DRAIN PUMP FERRITE CORE NOISE FILTER POWER SUPPLY CIRCUIT X35A SIGNAL RECEIVER CIRCUIT X33A CONNECTOR CONNECTOR ADAPTOR FOR WIRING GROUP CONTROL ADAPTOR NOTES SIGNAL TRANSMISSION CIRCUIT WIRED REMOTE CONTROLLER R1T THERMISTOR AIR WIRELESS REMOTE CONTROLLER RECEIVER DISPLAY UNIT PRINTED CIRCUIT BOARD PRINTED CIRCUIT BOARD PUSH BUTTON ON OFF LIGHT EMITTING DIODE ON RED H2P LIGHT EMITTING DIODE TIMER GREEN 180 1 CLIJ TERMINAL 90 CONNE
61. Normal if the continuity check results in the following Power transistor on inverter PCB Y Y 0 0 Qh D B sO B sO C U Continuity C U oo C V Continuity t sk C V oo C W Continuity C W oo U C oo U C Continuity V C oo V C sma sk W C oo W C Continuity Note If there is continuity the resistance should be the same as each phase If a digital tester is used for the measurement of continuity e and continuity may be reversed 170 Service Diagnosis SiBE281013 Troubleshooting by Remote Controller 110 Check Pressure Sensor Measure the voltage DC between pins 1 and 3 of the connector Outdoor unit PCB A1P 5V O Connector Red 4 g Red Black NA GND Ni Pressure sensor Sy Micr ocomputer White A D input Measure DC voltage here Detected Pressure PH Kg cm MPa 51 0 45 9 40 8 35 7 30 6 25 5 20 4 15 3 10 2 5 1 5 0 4 5 4 0 3 5 3 0 ELIO 2 0 1 5 1 0 0 5 PH 1 38VH 0 69 Ph Detected pressure MPa Vu Output voltage V 05 0 05 1 15 2 25 3 35 4 Output voltage Vu Voc This graph is available for both high pressure sensor and low pressure sensor Service Diagnosis 171 Troubleshooting by Remote Controller SiBE281013 01 30 48 Fan Motor Signal Line 1 Turn the power supply off
62. OPERATION BUTTON 17 This button is used only by qualified service persons for maintenance purposes EMERGENCY OPERATION SWITCH This switch is readily used if the remote controller does not work RECEIVER This receives the signals from the remote controller OPERATING INDICATOR LAMP Red This lamp stays lit while the air conditioner runs It flashes when the unit is in trouble TIMER INDICATOR LAMP Green AIR FILTER CLEANING TIME INDICATOR LAMP Red Lights up when it is time to clean the air filter DEFROST LAMP Orange Lights up when the defrosting opera tion has started This lamp stays lit while the timer is set 3P107422 31W Wireless Remote Controller SiBE281013 2 3 MAIN SUB Setting Introduction To set the wireless remote controller you have to set the address for m The receiver of the wireless remote controller B The wireless remote controller Setting the Address for the Receiver When using both a wired and a wireless remote controller for 1 indoor unit the wired controller should be set to MAIN Therefore set the MAIN SUB switch SS1 of the receiver to SUB MAIN SUB MAIN MAIN SUB S S switch SS1 M M 20 Remote Controller SiBE281013 Service Mode 3 Service Mode 3 1 BRC1D528 3 1 1 Display Service Data Code No Setting Code No 1 2 7 1 Enter the field setting mode Press the inspection test operation button for 4 seconds or more 2 Enter t
63. S YES There is possibility of error caused by noise Check the surrounding area and turn on again Replace the remote controller Normal Replace the indoor unit PCB and then restart NO Normal There is possibility of error caused by noise Check the surrounding area and turn on again 156 Service Diagnosis SiBE281013 Troubleshooting by Remote Controller 4 34 Transmission Error between MAIN Remote Controller and SUB Remote Controller Da gt o uo A Remote Controller Display Applicable All models of indoor units Models Method of Error In case of controlling with 2 remote controller check the system using micro computer if signal Detection transmission between indoor unit and remote controller main and sub is normal Error Decision The error is generated when in case of controlling with 2 remote controllers the micro Conditions processor detects that the transmission between the indoor unit and the remote controllers MAIN and SUB is not normal over a certain amount of time Supposed Causes Setting failure with remote controller Connection among SUB remote controllers Defective remote controller PCB Disconnection of remote controller wiring Troubleshooting A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred SS 1 switch on remote controller PCB is turned to MAIN Controlling with
64. SiBE281013 Function Details 3 2 12 High Pressure Protection Control In order to prevent abnormal high pressures in the system and hence avoiding activation of the high pressure safety device the below control function will be activated Cooling Heating Normal operation Normal operation Hp lt 3 42 MPa Hp gt 3 53 MPa al Hp lt 3 24 MPa Compressor operation e 30 sec elapsed frequency 1 step 1 min Compressor operation frequency B Hz Hp gt 3 57 MPa Compressor operation frequency 1 step 10 sec Hp gt 3 67 MPa 15 times or less Hp lt 3 42 MPa Ho gt 3 92 MPa es Compressor operation Compressor operation OR ies ais stopping in 300 frequency A Hz frequency 1 step 5 min 5 minutes Compressor stop on e HPS activates Hp lt 3 52 MPa e Stopped 16 times in e Hp gt 3 92 MPa for 1 minute Compressor stop e Stopped 16 times in 300 minutes 300 minutes Abnormal stop E3 indication Abnormal stop E3 indication As the bearing resistance limit pressure decreases during slow operation of the compressor the lower limit of frequency is restricted Compressor frequency lower limit E Hz RZQG71LV1B RZQG100 140LV1B In cooling heating operation Normal operation Hp gt C MPa e Hp lt D MPa amp e After 30 seconds 3 04 MPa 2 70 MPa D MPa 2 84 MPa 2 60 MPa 3 2 13 Heating Control at High Outdoo
65. Specific enthalpy Specific entropy C kPa kg m pressure kJ kgK kJ kg kJ KgK Liquid Vapor Liquid Vapor Liquid Vapor Liquid Vapor Liquid Vapor 36 13 40 83 46 02 51 73 58 00 64 87 72 38 80 57 89 49 99 18 OA a eet a a 4 101 32 109 69 121 07 133 36 146 61 160 89 176 24 192 71 210 37 229 26 249 46 jbk a ji feo po jr A A A 271 01 293 99 318 44 344 44 372 05 370 90 401 34 400 06 432 36 430 95 465 20 463 64 499 91 498 20 536 58 534 69 ed 1 7 575 26 573 20 616 03 613 78 658 97 656 52 704 15 701 49 751 64 748 76 801 52 798 41 853 87 850 52 908 77 905 16 966 29 962 42 1026 5 1022 4 dopado pd A A ee 1089 5 1085 1 1155 4 1150 7 1224 3 1219 2 1296 2 1290 8 1371 2 1365 5 1449 4 1443 4 1530 9 1624 6 1615 8 1609 2 1704 2 1697 2 1796 2 1788 9 1891 9 1884 2 1991 3 1983 2 2094 5 2086 2 2201 7 2193 1 2313 0 2304 0 2428 4 2419 2 2048 1 2538 6 2672 2 2662 4 2800 7 2790 7 2933 7 2923 0 3071 5 3061 2 3214 0 3203 6 3361 4 3351 0 30138 3503 5 3671 3 3661 2 3834 1 3824 2 4002 1 3992 7 4175 7 4166 8 Appendix 183 Precautions for New Refrigerant R 410A SiBE281013 3 2 Refrigerant Cylinders m Cylinder specifications e The cylinder is painted refrigerant color pink e The cylinder valve is equipped with a siphon tube Cylinder O C O lt 2 o Refrigerant can be charged in liqu
66. Switch only when heat reclaim ventilation is built in First Code No Second Code No Eo Individual operation of ventilation Field Setting 61 Field Setting from Remote Controller SiBE281013 2 4 Overview of the Field Setting on the Outdoor Units Remote controller settings Mode First Description No Code No Second Code No The table below contains the remote controller settings setting setting Night time low Disabled Automatic Capacity Automatic Refer to noise operation Factory low noise preceding low noise P63 setting activation setting Capacity when preceding using KRP58 option 1 Automatic low 22h00 Refer to noise start and O8h00 P63 16 26 stop time Factory 2 EDP room Disabled EDP room EDP room Refer to setting Factory setting setting P66 setting no freeze up 3 Defrost starting Standard Defrost Defrost Refer to setting Factory slow quick P70 setting starting starting Jumpers The table below contains the jumper field settings Jumper Label on P AS Set as Cooling Only For RZQG71 100LV1B Factory settings For RZQG125 140LV1B use the other PCB set as Cooling Only no JX5 The table below contains the factory settings of all outdoor units Second Code No 62 Field Setting SiBE281013 Field Setting from Remote Controller 2 5 Quiet Low Noise Operation Purpose Lower the operation sound of the outdoor unit Setting Silent Operation can be ac
67. Tml 0 0 396 Model ie Sirocco Fan AR amin OSIM ITA i ee ee O Sound pressure MD a 868 a es rr Sound power Br a E En Dan m VPO Ema da 88 Remote comrollen onion BRC1E51A7 BRC1D528 p Wireless BRC7G63 Cross fin coil Waffle fins and Hi XSL tubes Coil RowxStagesxFin pitch 2x44x1 4 2x64x1 4 Face area Jm 0 884 1 286 Model DD 5VDAZOXAA2 Comp a ee A 2 14 3 60 Model ssid PEI P51J11Fx2 Propeller Fan wnr output e 94 94 e S T tr ed Sound pressure cooing reen de le Soundporer BA y e S r y Tu m 595 Far 6 EE 915 9 Faro Dan mm 028 0 Hole Saey des a Refrigerant conta Mex eg Max height difference 30 seam Model RATOA Charge Ned O QA Charge ET A AS ooo Drawing No Mass A Piping Connections i Note 1 The above data based on the conditions shown in the table below Indoor 27 CDB 19 0 CWB Indoor 20 CDB 15 CWB 5m Outdoor 35 CDB 24 CWB Outdoor 7 CDB 6 CWB Horizontal 8 Specifications SiBE281013 Remote Controller Part 4 Remote Controller Mired Remote Controller ais ia 10 1 1 Applicable Models cai a 10 12 Names ana FUNCTIONS tirada a 11 1 3 MAIN SUB Setting when Using 2 Remote Controllers 15 1 4 Centralized Control Group No SettinQ ccccoooonccconocconnconaconnnnnanonoss 16 Wireless Remote Controller occcoocccocnccccncconcno
68. a tester when measuring insulation Do not use a mega tester for low voltage circuits Refrigerant piping Is the size of the piping appropriate O s the insulation material for the piping attached securely Are both the liquid and gas pipes insulated Are the stop valves for both the liquid side and the gas side open Extra refrigerant Did you write down the extra refrigerant and the refrigerant piping length Indoor unit O Is the indoor unit fully installed When the test run is started the fan automatically begins turning If a decoration panel is not attached make sure that no work is being done on the indoor unit If you are using the wireless remote controller do the test run after attaching the decoration panel to the indoor unit e Be sure to perform a test run e Be sure to fully open the liquid side and gas side stop valves If you operate the unit with stop valves closed the compressor will break down e Be sure to execute the first test run of the installation in cooling mode operation e Never leave the unit unattended with an open front panel during test run 1 2 Remote Controller Confirmation e The settings of the remote controller for the BRC1D series should be made in accordance with the following procedure e The settings of the remote controller for the BRC1E series should be made in accordance with the attached manual 50 Field Setting SiBE281013 Test Operation 1 3 Test Run 1 9 Make
69. age of main circuit capacitor built in the inverter and power supply voltage When the voltage of main circuit capacitor built in the inverter and power supply voltage drop or when the power failure of several tens of ms or more is generated Drop in power supply voltage Defective outdoor fan motor Instantaneous power failure Defective outdoor unit inverter PCB Main circuit parts damaged 151 Troubleshooting by Remote Controller Troubleshooting SiBE281013 A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Is the power supply voltage between 200 10 VAC YES Remove the connector for fan motor on the PCB and operate neo sin a NO is displayed YES CHECK 6 Is the resistance valve is above the criteria NO YES 7 NO Is the wiring correct YES When the compressor is running measure the voltage between and of electrolytic capacitor C C Is the measured voltage 220 VDC or more YES NO Are Refer to P 172 152 Field factors Is the fan motor normal Refer to troubleshooting ne On cor ne Replace the fan motor YES Replace the fan motor Correct the wiring Monitor the voltage Instantaneous voltage drop Replace the outdoor unit PCB Service Diagnosis SiBE281013 Troubleshooting by Remote Controller 4 32 Transmission Err
70. aptor m Differences Equipped with function to prevent reverse oil flow Previous vacuum pump can be used by installing adaptor 187 Precautions for New Refrigerant R 410A SiBE281013 188 4 Leak tester Specifications Hydrogen detecting type etc Applicable refrigerants R 410A R 407C R 404A R 507A R 134a etc Differences Previous testers detected chlorine Since HFCs do not contain chlorine new tester detects hydrogen Refrigerant oil Air compal m Specifications Contains synthetic oil therefore it can be used for piping work of every refrigerant cycle Offers high rust resistance and stability over long period of time m Differences Can be used for R 410A and R 22 units 6 Gauge manifold for R 410A Specifications High pressure gauge 0 1 to 5 3 MPa 76 cmHg to 53 kg cm Low pressure gauge 0 1 to 3 8 MPa 76 cmHg to 38 kg cm 1 4 gt 5 16 2 min gt 2 5 min No oil is used in pressure test of gauges For prevention of contamination Appendix SiBE281013 Appendix Precautions for New Refrigerant R 410A Temperature scale indicates the relationship between pressure and temperature in gas saturated state Differences Change in pressure Change in service port diameter Charge hose for R 410A Hose with ball valve Specifications Working pressure 5 08 MPa 51 8 kg cm Rupture pressure 25 4 MPa 259 kg cm Available with and without
71. ation LES Continue the unit operation NO Is white mist coming NO out from the unit Normal YES It may be necessary to remove the R th fend source of humid condition eee SOUS yas Is the VES condition heat exchanger of indoor Cleaning of heat exchanger is unit soiled necessary NO tal ed pe es il mi with dense oil mist Dust or oil mists should be removed del the source of oil mist or UST NO Possible causes as follows Is the airflow in n iste Grell adel Clogged air filter Cleaning of air filter Defective fan motor Check the fan motor NO Refer to troubleshooting Tit Did the trouble generate on switching to heating mode after complete of Normal defrosting operation Service Diagnosis 95 Symptom based Troubleshooting SiBE281013 2 9 Equipment Produces Loud Noise or Vibration Applicable Model All models of SkyAir series Defective installation Overcharge of refrigerant Air mixed in refrigerant system Flushing noise due to refrigerant shortage Sound of shoo Supposed Causes Troubleshooting A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Installation work side YES Does the noise generate with vibration of whole ceilings and walls NO Does the noise generate with vibration of unit mounting section YES Continuous slight noise of s
72. be occurred Turn OFF the power supply and turn the power ON Is normal reset possible YES Turn OFF the power supply remove the fan motor connector and then turn the power ON again 118 Error is displayed again YES External factor Noise etc Replace the outdoor unit PCB A1P Check the fan motor Service Diagnosis SiBE281013 Troubleshooting by Remote Controller 4 13 High Pressure Abnormality Detected by the High Pressure Switch 4 13 1 RZQG71 100 gt gt gt ens Remote Controller Display Applicable RZQG71 100 Models Method of Error In cooling Detection m The error is detected by the outdoor unit intermediate heat exchanger thermistor R5T In heating m The error is detected by the indoor unit intermediate heat exchanger thermistor RST Error Decision In cooling Conditions m When the outdoor unit intermediate thermistor R5T detects the pressure shown below 3 92 MPa or more continuously for one minute Reference equivalent saturation temperature 62 C In heating m When the indoor unit intermediate thermistor R3T detects the pressure shown below 3 92 MPa or more continuously for one minute Reference equivalent saturation temperature 62 C Supposed Dirt and blockage of the outdoor unit heat exchanger Causes Defective outdoor unit fan motor Defective indoor unit fan motor Defective electronic expansion valve Overcharge of refrigerant Defective indoor
73. comro o TO NE ENEN Option Interlock control Fresh air intake kit i Note O Functions exist No functions 1 FHQG71C Installable on max 3 5m high ceiling FHQG100 140C Installable on max 4 3m high ceiling 1 2 Outdoor Unit Functions RZQG71L RZQG100 125 140L Control Inverter Control For Comfortable Air Conditioning Night Time Quiet Operation Function for Cooling Z EDP Room Applicable Work amp Low Gas Pressure Detection Servicing Operation Wide Operation Range 15 50 CDB Range 20 15 5 CWE PE Fin for Outdoor Unit 3 i Note O Functions exist No functions Functions 5 SiBE281013 Part 3 Specifications hig SOC CHIC ATIOINS reede eenen Rete lan 7 Specifications SiBE281013 Specifications 1 Specifications FCQG Ceiling Mounted Cassette Type Round Flow indoor unit FO FOGGIONEVES FOOGIBEVEB FOQGIMOEVES ZZ E CR IR ER Coaling capacity 1 A O e Heating capacity 1 ER ele 7 o a SEERDE ee SCOP Bivalent pointa c __a7a_ 378 39 o indoor unit GEV FOGGIOOEVES FOOGI2SEVEB FOQGIMOEVEB Dimensions RWD mm ESD Cross fin coil Multi louver fins and N hix tubes Coil 1x18x1 25 2x18x1 2 C IRAN EA 0 550 Mode a a OTS48CT5M Turbo Fan Moram u oae monn E ea WAE Air filter Air Air filter Mass TR oOo o ooo SSS o ya o Sound pressure H M L Senn 36 33 29 44 39 33 45 41 35 45 41 37 Soundpower
74. connector Defective radiation fin thermistor Defective outdoor unit inverter PCB 137 Troubleshooting by Remote Controller SiBE281013 Troubleshooting A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Can it be considered that the radiation fin temperature was high 1 YES Eliminate the cause NO Is the connector of the radiation fin thermistor correctly connected to the outdoor unit PCB NO Connect correctly YES Turn the power ON and then press the remote controller check button once 4 is displayed ES Troubleshooting NO Error is displayed again YES Replace the outdoor unit inverter PCB NO Continue the operation i Note 1 Radiation fin temperature detection value Mod Detection Rest RZOG7 ZaG100 140 138 Service Diagnosis SiBE281013 4 23 Output Overcurrent Detection gt va er A ap Troubleshooting by Remote Controller Remote Controller Display Applicable RZQG Models Method of Error The error is detected by converting the current flowing to power transistor into voltage with CT1 Detection DC current sensor Error Decision When overcurrent has run to power transistor Conditions Actuated even by instantaneous overcurrent Supposed Defective compressor mechanical lock poor insulation Causes Defective inverter PCB Troubleshooting
75. ction air thermistor temperature is lower than set temperature Is the power switch OFF or the fuse for power switch blown YES NO Is the heating switch turned ON at outdoor temperature gt 32 C YES Is rated voltage applied at the compressor terminals YES NO 2 Is rated voltage output from the magnetic switch or power transistor YES NO 3 Is rated voltage output from the PCB YES NO Suction air l PCB PCB switch COMP 2 Output from magnetic switch or SW circuit of power transistor 3 Output from relay or micro computer Service Diagnosis Turn ON the power switch or replace the fuse Normal Thermostat OFF by outdoor temperature Replace the compressor Replace the magnetic switch or power transistor Replace the PCB Check the thermistor 1 Output from magnetic switch or U V W of power transistor 87 Symptom based Troubleshooting SiBE281013 2 4 Cooling Heating Operation Starts but Stops Immediately A Supposed Causes pplicable Model All models of SkyAir series Overcharge of refrigerant Air mixed in refrigerant system Defective pressure switch Defective magnetic switch for outdoor unit fan motor Defective aux relay for outdoor unit fan motor Soiled heat exchanger of outdoor unit There is an interfering item in airflow of outdoor unit Defective outdoor unit fan
76. ctions securely and route the cable properly so that there is no force pulling the cable at the connection terminals Improper connections may cause excessive heat generation or fire When wiring between the indoor and outdoor units make sure that the terminal cover does not lift off or dismount because of the cable Ifthe cover is not mounted properly the terminal connection section may cause an electrical shock excessive heat generation or fire Do not damage or modify the power cable Damaged or modified power cable may cause an electrical shock or fire Placing heavy items on the power cable and heating or pulling the power cable may damage the cable Do not mix air or gas other than the specified refrigerant R 410A R 22 in the refrigerant system If air enters the refrigerating system an excessively high pressure results causing equipment damage and injury If the refrigerant gas leaks be sure to locate the leaking point and repair it before charging the refrigerant After charging refrigerant make sure that there is no refrigerant leak If the leaking point cannot be located and the repair work must be stopped be sure to perform pump down and close the service valve to prevent the refrigerant gas from leaking into the room The refrigerant gas itself is harmless but it may generate toxic gases when it contacts flames such as fan and other heaters stoves and ranges When relocating the equipment make sure that the n
77. d Daikin Industries Ltd does not have control over which products are exported to and used in a particular country Prior to purchase please therefore confirm with your local authorised importer distributor and or retailer whether this product conforms to the applicable standards and is suitable for use in the region where the product will be used This statement does not purport to exclude restrict or modify the application of any local legislation e Ask a qualified installer or contractor to install this product Do not try to install the product yourself Improper installation can result in water or refrigerant leakage electrical shock fire or explosion Use only those parts and accessories supplied or specified by Daikin Ask a qualified installer or contractor to install those parts and accessories Use of unauthorised parts and accessories or improper installation of parts and accessories can result in water or refrigerant leakage electrical shock fire or explosion Read the User s Manual carefully before using this product The User s Manual provides important safety instructions and warnings Be sure to follow these instructions and warnings Warning If you have any enquiries please contact your local importer distributor and or retailer Cautions on product corrosion 1 Air conditioners should not be installed in areas where corrosive gases such as acid gas or alkaline gas are produced 2 If the outdoor unit is to be
78. d Control 29 Function Details SiBE281013 e In dry operation Tro gt 24 C AT lt 2 5 C Dry E Thermostat OFF 1 C 24 C gt Tro gt 16 C AT lt 2 C Dry operation T Thermostat OFF 1 C 16 C gt Tro Tr lt 13 C Dry operation re A OFF gt 15 C i Note 1 The thermistor to detect room temperature is as follows according to field setting Factory setting Indoor unit suction air thermistor When set to remote controller thermistor Indoor air thermistor in the remote controller 3 1 3 Switchable Fan Speed The setting airflow rate when the thermo is turned on and off by operation mode is as shown below The airflow rate when the thermo is turned off can be changed in field setting The table below shows the factory setting Thermostat OFF OFF Thermostat ON Thermostat OFF Set 3 1 4 Swing Pattern Selection A flaps operate as shown in the table below Thermostat AAA Flap Set Cool Thermostat OFF oolin J Thermostat ON Swing Set Thermostat OFF Thermostat ON Flap Set p D Thermostat OFF rogram Dr 9 y Thermostat ON Swing Set Thermostat OFF Flap Set Thermostat OFF Heating Swing Set z Thermostat OFF Horizontal Fan Fapse 3 1 5 Drain Pump Control Only for FCQG m Cooling Dry Operation Normally drain pump ON Thermostat ON OFF 30 Function and Control SiBE281013 Function Details m Heating When the following condition consists by mounting the adaptor for wiring PCB the d
79. d Thermistors RZQG71L l B Electronic l expansion valve 0 Filter an Filter Outdoor HHHH X HEHH heat exchanger l l l l C Four way valve R2T RST Check valve Y An Indoor heat exchanger l i Pressure switch l Service port 5 16 flare l l l Compressor Field piping 69 5 Accumulator C1220T O Field piping 015 9 Accumulator C1220T O A A Compressor lo ee Indoor unit Stop valve Outdoor unit with service port 5 16 flare This thermistor is near the el compo box C 3D069535 RZQG100 140L B Electronic expansion valve Filter O Filter Outdoor JEER X HEEE heat exchanger RT Pressure switch high Indoor heat exchanger Service port 5 16 flare Compressor Accumulator C Four way valve Field piping 09 5 ul C1220T O Field piping 015 9 Yi Accumulator C1220T 0 A A Compressor Indoor unit Stop valve Outdoor unit with service port 5 16 flare This thermistor is near the el compo box C 3D069536 Function and Control 25 26 Function of Main Components and Thermistors SiBE281013 Outdoor Unit A Compressor M1C
80. der No represent the number of times to push the SET BS2 button E Setting of Demand 2 operation With this setting compressor operation can be controlled to reduce power consumption 60 80 demand is available when a demand adapter optional accessory is used Setingitem Setting condition Description 30 demand patates with 29 of rated Demand 2 operation 40 demand factory setting Ever onstaan S 50 demand OFF 0 BLINK O ON Work procedure Operating procedure Push and hold the MODE BS1 button of Setting mode 1 for 5 seconds or more and set to Setting mode 2 Push the SET BS2 button three times to set the LED display as shown in the table on the right Push the RETURN BS3 button once Present settings are displayed 30 of rated power consumption Push the SET BS2 button to set the LED display as shown in the table on the right Ue ONES PONET CONSUMPLUDN 50 of rated power consumption 30 of rated power consumption Push the RETURN BS3 button once to make a decision 40 of rated power consumption 50 of rated power consumption Push the RETURN BS3 button once again for execution The LED display is in the initial status of Setting mode 2 Push the MODE BS1 button once to return to Setting mode 1 normal operation Field Setting 73 Field Setting from Outdoor Unit PCB SiBE281013 74 m Setting of Refrigerant Recovery Mode When a refrigerant
81. dition Button RETURN Used to decide Setting item and Setting condition Used for pump down operation forced oil return operation and forced PUMP DOWN defrost operation ON OFF 1 EMERGENCY Switch 5 COOL Maintain HEAT in case of heating in emergency operation and switch to HEAT 1 COOL in case of cooling in emergency operation Switch from OFF to ON for emergency operation forced operation x1 Factory settings OFF and HEAT i Note BS button Pump down Forced defrosting Pressing the BS button forcibly operates the air conditioner in the cooling mode 1 To conduct a pump down operation sending refrigerant to outdoor unit press the BS button to forcibly operate the equipment in the cooling mode then operate the unit for about 1 minute to stabilize the system After stabilizing system close the liquid pipe stop valve on the outdoor unit and after the pressure decreases and the low pressure sensor activates close the gas pipe stop valve 2 Forced defrost To activate the defrost operation during the heating operation press the BS button This will activate the forced defrost operation cooling operation When the defrost cancel conditions are met the equipment automatically switches off the defrost operation Field Setting 71 Field Setting from Outdoor Unit PCB SiBE281013 3 2 Field Setting for Outdoor Unit 3 2 1 Setting by BS Buttons With Setting mode 1 Setting mode 2 and Monitor m
82. dity sensor The error is generated when the humidity sensor becomes disconnected or shorted when the Conditions unit is running Supposed m Defective sensor Causes m Broken wire m External factor Noise etc Troubleshooting A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Remove the humidity sensor from the indoor PCB and insert it again Does it function normally It is normal Poor connector contact Delete the error code record from the remote controller 1 Error is displayed again 2 Replace the humidity sensor PCB assy A3P 3 External factor Noise etc i Note 1 To delete the record the ON OFF button of the remote controller must be pushed and held for 5 seconds in the check mode 2 To display the code the Inspection Test Operation button of the remote controller must be pushed and held in the normal mode x3 If 22 is displayed even after replacing the humidity sensor PCB assy ASP and taking the steps 1 and 2 replace the indoor PCB assy A1P 116 Service Diagnosis SiBE281013 Troubleshooting by Remote Controller 4 11 Remote Controller Thermistor Abnormality Remote Controller Display Applicable Models Method of Error Detection Error Decision Conditions Supposed Causes Troubleshooting T fn bab gt p All models of indoor unit Even if remot
83. door unit fan conducts residual operation for a period of time to expedite equalization and prevent refrigerant from entering in evaporator 10 times in 200 minutes Thermostat OFF Restart standby complete N Compressor e OFF y Electronic Operation expansion valve complete Cooling E e ai Moves to Stop or Starting control after completion of Restart standby sec SEC sec Heating Le ON Outdoor unit fan Residual OFF operation Ld For 3 min ee LV1B 00 140LV1B Function and Control 33 Function Details 3 2 3 Preheating Operation Control SiBE281013 After the compressor has been turned OFF the preheating operation control will be activated in order to avoid refrigerant from dissolving in the compressor oil and quick increase of heating level during the heating operation Starting Conditions e Compressor stopping e 6 hours or less after turning ON the power amp ar e 1 hour or more after turning OFF the compressor amp e Outdoor air temperature is not declining e Discharge pipe temperature lt 40 C Ending Conditions e Operation of thermostat is established e 6 hours or more after turning ON the power amp e 1 hour or less after turning OFF the compressor amp l a of e Outside temperature is declining e Discharge pipe temperature gt 43 C 3 2 4 Outdoor Unit Fan Control during Heating Thermostat OFF In order to prevent the false detection of outdoor s
84. e Unit 0 Error code LO Inspection 1 Inspection mode Press the Inspection test button once 071 FJJ 2 Indoor unit model code display Press the Inspection test button once 3 Outdoor unit model code display Press the Inspection test button once Test operation Test operation mode Press the Inspection test button once Note Inspection Mode 1 Inspection mode Unit 0 Error code LO Inspection Error code blinks when an error occurs 2 Indoor unit model code 07 1 Capacity code F Indoor unit system code 1 J Indoor unit type code 2 J Progression code 1 Indoor unit system code Display System classification F Standard indoor unit 2 Indoor unit type code Display Type Model C Multi flow Round flow FCQG H Ceiling suspended FHQG 3 Outdoor unit model code Display Model 2AA RZQG Inspection mode is not available for BRC1E51A7 Remote Controller 23 24 SiBE281013 Part 5 Function and Control 1 Function of Main Components and Thermistors annen 25 2 Operation Flow CAE sss entente eeen 27 241 Cooling Div OPEMNON reen senen el OS 27 22 Heating ODE ALON sra brete la oie 28 3 FUNCION Dell Susana 29 Sl INACO KM sssr a E alletc 29 3 2 Outdoor Unit Function and Control SiBE281013 Function of Main Components and Thermistors 1 Function of Main Components an
85. e a LA a Tado m 995 Flare Pieno ers FS o 15 9 Flare Dan rm VP25 External dia 32 BRC1E51A7 BRC1D528 Remote controller option Wireless Wireless Base panel Dimensions BWO mm D option Dimensions AMD mm WD ID ID IM Rn Cross fin coil Waffle fins and Hi XSL tubes Coil RowxStagesxFin pitch 2x44x1 4 2x64x1 4 Face area mA 0 884 1 286 2VOSSFXDD 5VDAZOXAA2 Comp Da a A 2 14 3 60 Mode ssid PEI P51J11Fx2 Propeller Fan a output ee 94 94 COI A E A e e Sound pressure cooing reen de le Soundporer BP Tu mm 595 Far Em 5 159 Faro Dan am 0280 ole Saey des se Refrigerant control Mex Tog Max height difference 30 Model R 410A Charge Mode Charge oi o ROO Drawing No Mass A Piping Connections i Note 1 The above data based on the conditions shown in the table below Indoor 27 CDB 19 0 CWB Indoor 20 CDB 15 CWB 5m Outdoor 35 CDB 24 CWB_ Outdoor 7 CDB 6 CWB Horizontal Specifications 7 Specifications SiBE281013 FHQG Ceiling Suspended Type indoor unit MOE FMOGIOOOVES FHOGTACVES FHOGMOCVES EN ZR css ETE E E idee EER ele CC S SS sereo a ARA sco Bivalent pointa C gt ast 3 3 3 17 SUS indoor unit GCE FE FSE OGM Dimensions BWO e BD TE S o porsan Cross fin coil Multi louver fins and N hix tubes Coil RowxStagesxFin pitch 3x14x1 5 Face area
86. e opening degree decreases due to wet protection control Minimum opening degree x Electronic expansion valve Suction Suction superheat degree is approx 0 deg superheat degree Discharge superheat degree Degree of excessive refrigerant charging Adequate level Excessive charge ee High pressure 1 Low pressure 2 es l Compressor frequenc cae q y Minimum frequency Compressor frequency decreases in order to Electronic expansion valve _ maintain high pressure opening degree decreases Electronic due to wet protection control expansion valve Suction Suction superheat degree is approx Oideg superheat degree Discharge Minimum opening degree superheat degree AAA Degree of excessive refrigerant charging Adequate level Excessive charge Cooling Intermediate heat High Pressure exchanger thermistor 3 2 Pressure sensor Low Pressure Heating x Pressure sensor High Pressure 2 Intermediate heat Low Pressure exchanger thermistor 3 3 This measured temperature is used to calculate the equivalent saturation pressure of the refrigerant Refer to P 183 174 Service Diagnosis SiBE281013 Troubleshooting by Remote Controller e 0 41 Clogged Points Temperature differences must occur before or after the clogged points a SO SRLS SOR SS RU G EA AR IR RR Se Se at 1 i 1 1 1 1 s X N i 1 1
87. e PMV control e General frequency control Heating Thermostat control e PMV control e General frequency control Indoor Heat Exchanger Thermistor Cooling Compressor frequency control target Te e Inverter current protection control e Freeze up control Heating Compressor frequency control target Tc e Inverter current protection control e Hot start control e Peak cut off Function and Control SiBE281013 Operation Flow Chart 2 Operation Flow Chart 2 1 Cooling Dry Operation Power supply ON Initialize electronic expansion valve Initialize micro computer E A Preheating operation control y Remote controller operation judgement Cooling Dry Operation mode Emergency judgement Heating Emergency v 4 operation Cooling Dry Heating y Thermostat ON judgement y Starting control four way valve changeover k Normal control Compressor step control Inverter current protection control Electronic expansion valve Pl control Low outdoor temperature cooling control Low pressure protection control Overall current protection control High pressure protection control Simulated operation Discharge pipe temperature protection control y y x v Oil recovery Thermostat OFF judgement Remote operation starting Room thermos
88. e controller setting temp Te target C Te target limited lt 20 C a0 to protect the comp i Te see note target acceptable area m Indoor temp gt setting Te target down Indoor temp lt setting Te target up 10 5 i 2 a Te target limited gt 2 C E not to HEZE Freeze protection 40min integrated coil temp lt 1 C 5 Ma i a Indoor Temp C DB Note Te by LP sensor RZQG Series Change In order to increase continuous operation of the unit in low latent heat applications and avoid the thermostat rise of temperature after thermostat OFF the thermostat control will be changed when using control field settings 16 26 2 03 amp 16 26 2 04 Thermostat ON m ATrs 0 5 C No change from standard setting Thermostat OFF m Alrs lt 2 0 C for 5 minutes continuously B Alrs lt 4 5 C Field Setting 69 Field Setting from Remote Controller SiBE281013 Capacity When low humidity application is selected Field setting 16 26 2 03 Indoor Temp C WB Outdoor me IO DE CN A A E EEC C DB E Capacity of standard point When low humidity application freeze up operation prevention is selected Field setting 16 26 2 04 Indoor Temp C WB Capacity of standard point eo oe jor jor os 0 joom jeje i Note Operation range on indoor side expanded from minimum 12 CWB to 11 CWB when using LH setting e Do not use a setpoint below 20 C to avoid operation
89. e controller thermistor is faulty system is possible to operate by indoor unit suction air thermistor The error is detected by temperature of remote controller thermistor The error is generated when the remote controller thermistor becomes disconnected or shorted when the unit is running Even if the remote controller thermistor is error the system can operate with the system thermistor m Defective thermistor m Broken wire m External factor Noise etc A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred i Note 1 To delete the record the ON OFF button of the remote controller must be pressed for 5 seconds in the check mode Service Diagnosis Delete the error code record from the remote controller 1 Error is displayed again Replace the remote controller External factor Noise etc 117 Troubleshooting by Remote Controller 4 12 Outdoor Unit PCB Abnormality Remote Controller Display Applicable Models Method of Error Detection Error Decision Conditions Supposed Causes Troubleshooting De nn RZQG Micro computer checks whether E PROM is normal When E2PROM error when turning the power supply ON m Defective outdoor unit PCB A1P m Defective fan motor m External factor Noise etc SiBE281013 A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may
90. e reader such as tips and tricks Note Caution A caution is used when there is danger that the reader through incorrect manipulation may damage equipment loose data get Caution an unexpected result or has to restart part of a procedure Warning A warning is used when there is danger of personal injury MN Warning Reference A reference guides the reader to other places in this binder or in this manual where he she will find additional information on a specific topic vill Introduction SiBE281013 1 3 Preface Thank you for your continued patronage of Daikin products This is the new service manual for Daikin s Year 2010 RZQG L series Heat Pump System Daikin offers a wide range of models to respond to building and office air conditioning needs We are confident that customers will be able to find the models that best suit their needs This service manual contains information regarding the servicing of RZQG L series R 410A Heat Pump System November 2010 After Sales Service Division SiBE281013 Part 1 General Information 1 Model Names of Indoor Outdoor Units ane 2 2 External ApDeardnee rset cio E 3 General Information 1 Model Names of Indoor Outdoor Units SiBE281013 1 Model Names of Indoor Outdoor Units Model Series Power Supply FCQG71EVEB RZQG71LV1B e FCQG100EVEB RZQG100LV1B Ceiling Mounted Cassette Type FCQG125EVEB RZQG125LV1B FCQG140EVEB RZQG140LV1B 1 phase 220
91. e to check that the refrigerating cycle section has cooled down enough before conducting repair work Working on the unit when the refrigerating cycle section is hot may cause burns Use the welder in a well ventilated place Using the welder in an enclosed room may cause oxygen deficiency SiBE281013 Introduction 1 1 2 Cautions Regarding Safety of Users Be sure to use parts listed in the service parts list of the applicable model and appropriate tools to conduct repair work Never attempt to modify the equipment The use of inappropriate parts or tools may cause an electrical shock excessive heat generation or fire If the power cable and lead wires have scratches or deteriorated be sure to replace them Damaged cable and wires may cause an electrical shock excessive heat generation or fire Do not use a joined power cable or extension cable or share the same power outlet with other electrical appliances since it may cause an electrical shock excessive heat generation or fire Be sure to use an exclusive power circuit for the equipment and follow the local technical standards related to the electrical equipment the internal wiring regulations and the instruction manual for installation when conducting electrical work Insufficient power circuit capacity and improper electrical work may cause an electrical shock or fire Be sure to use the specified cable for wiring between the indoor and outdoor units Make the conne
92. e you can diagnose possible malfunction codes e Disconnection or wiring error between power supply and outdoor unit between outdoor unit and indoor units between indoor unit and remote controller e The fuse on the outdoor unit PCB may have run out If the malfunction code E 5 E 15 or tit is displayed on the remote controller there is a possibility that the stop valves are closed If the malfunction code E 5 E 5 or L amp is displayed on the remote controller there is a possibility that air inlet or air r outlet are blocked If the malfunction code 2 is displayed on the remote controller check for voltage imbalance If the malfunction code 1 or uF is displayed on the remote controller check the inter unit branch wiring connection If the malfunction code 5 is displayed on the remote controller there is a possibility that connection is with incompatible indoor unit Field Setting SiBE281013 Field Setting from Remote Controller 2 Field Setting from Remote Controller Individual function of indoor unit can be changed from the remote controller At the time of installation or after service inspection repair make the local setting in accordance with the following description Wrong setting may cause error When optional accessory is mounted on the indoor unit setting for the indoor unit may be required to change Refer to information in the
93. ealed H Hard Drawn Appendix 185 Precautions for New Refrigerant R 410A SiBE281013 1 Flaring tool Flare gauge m Specifications e Dimension A Unit mm 0 4 Class 2 R 410A Class 1 Conventional m Differences e Change of dimension A Dimension A For class 1 R 407C For class 2 R 410A Conventional flaring tools can be used when the work process is changed change of work process Previously a pipe extension margin of O to 0 5 mm was provided for flaring For R 410A air conditioners perform pipe flaring with a pipe extension margin of 1 0 to 1 5 mm For clutch type only Conventional tool with pipe extension margin adjustment can be used 186 Appendix SiBE281013 Appendix Precautions for New Refrigerant R 410A 2 Torque wrench m Specifications Dimension B Unit mm Nominal size Class 1 Class 2 Previous No change in tightening torque No change in pipes of other sizes m Differences Change of dimension B Only 1 2 5 8 are extended For class 1 R 407C For class 2 R 410A Dimension B 3 Vacuum pump with check valve Vacuum pump adaptor Reverse flow preventive vacuum adaptor m Specifications Discharge speed e Maximum degree of vacuum 50 l min 50 Hz Select a vacuum pump which is able to keep 60 l min 60 Hz the vacuum degree of the system in excess of Suction port UNF7 16 20 1 4 Flare 100 7 kPa 5 torr 755 mmHg UNF1 2 20 5 16 Flare with ad
94. ected from the current flowing to power transistor into voltage with CT1 DC current sensor When compressor overload except for when startup is detected Disconnected compressor coil High pressure is abnormal high Defective compressor if bearing is scratched Defective outdoor unit PCB Stop valve is not opened 141 Troubleshooting by Remote Controller SiBE281013 Troubleshooting A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Is the secondary current of the inverter higher than A 1 for each phase YES NO Is the stop valve opened Open the stop valve NO YES Turn OFF the power supply YES High pressure is high Remedy the cause Check for excessive refrigerant charging KAIA Replace the outdoor unit PCB A1P Continuity check in the power transistor IGBT Is the continuity normal NO Replace the outdoor unit PCB A1P YES Compressor inspection Inspect according to the diagnosis procedure for abnormal noises vibration operating status etc of the compressor i Note 1 Secondary electronic thermal detection value RZQG71 12 6 or 12 2A x 260 seconds 14 8A x 260 seconds Cooli 16 1A x 260 RZQG100 140 oo 22 1A x 260 seconds ele Refer to P 168 10 44 Refer to P 170 ele Refer to P 174 142 Service Diagnosis SiBE281013 Troubles
95. ed Troubleshooting 2 7 Equipment Operates but does not Provide Heating Applicable Model Supposed Causes Service Diagnosis All models of SkyAir series Overcharge of refrigerant Air mixed in refrigerant system Defective pressure switch Defective magnetic switch for outdoor unit fan motor Defective aux relay for outdoor unit fan motor Soiled heat exchanger of outdoor unit There is an interfering item in airflow of outdoor unit Defective outdoor unit fan Soiled air filter of indoor unit Soiled heat exchanger of indoor unit There is an interfering item in airflow of indoor unit Defective indoor unit fan 93 Symptom based Troubleshooting SiBE281013 Troubleshooting A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Is this first starting YES alter installation This is normal Heating operation will be conducted after NO 2 or 3 minutes A YES Is the unit in defrost mode Wait for a while No abnormality NO Measure the temperature of suction air and discharge air Temperature difference Suction air temp Discharge air temp Does the heat load increase after installation of the unit Temperature difference for heating should be between 14 and 30 C YES YES No abnormality NO Incorrect selection of model Affection of sunlight dod En Affection of excessive fresh air into Additional
96. elect the desired Mode No Press the DOWN button to select the Second code No Press the RESERVE button to set the present settings Press the INSPECTION TEST button to return to the Normal mode 3 Press the UP button to select the First code No 56 Field Setting SiBE281013 Field Setting from Remote Controller 2 3 Settings Contents and Code No for Indoor Units Second Code No pericia wht ee Filter cleaning sign interval Long le fiter 2 500 hrs 1250hs Remote controller thermistor Enabled Disabled Fiter cleaning sign Display No display gt 2 Fan OFF at Thermostat OFF Normal OFF o J o be MET rate setting during heating Standard Slightly up Up Automatic operation mode control Available Prohibition Fan speed heating thermostat OFF LL speed Set speed Automatic restart after power failure reset Disabled Enabled J Fan speed cooling thermostat OFF LL speed Set speed 0 air outlet velocity for high ceiling Standard Sightyup Up o Hh at out Selection of ay direction 4 way flow _ 3 way flow ES e Airflow range setting Upper Normal Lower Individual 15 25 a Individual setting of ventilation Normal da J i Note 1 Settings are made simultaneously for the entire group however if you select the mode No inside parentheses you can also set by each individual unit Setting changes however cannot be checked
97. ereennnnen 134 4 21 Outdoor Unit PCB Abnormality aaneen eenenen ene eenenenens 135 4 22 Radiation Fin Temperature Rise cccccceecceeeceeeeeeeeeeeeeeeseeeaueeeeeees 137 4 23 Output Overcurrent Detection cccccococcnnccconcnnccnonnnnccnnnnnnnconaronnnonaness 139 4 24 Electronic Thermal Time Lag cccooccccoccccccncnccnnccccnocannnonacnnnnnnonanannns 141 4 25 Stall Prevention Time Lag cirina 143 4 26 Transmission System Abnormality between Control and Inverter PCB aanrennen envenrenennnen 145 4 27 Open Phase or Power Supply Voltage Imbalance 146 4 28 Defective Capacity Setting runnen eenn enrennnenr ennen vennen 147 4 29 Refrigerant Shortage Alert asana enenennerenvennnerevennnen 148 4 30 Refrigerant Shortage Error neen enen eneennnneenenenenreennnnen 149 4 31 Power Supply Voltage Abnormality anna enen ene ennneneeens 151 4 32 Transmission Error between Indoor and Outdoor Unit 153 4 33 Transmission Error Between Remote Controller and Indoor Unit 156 4 34 Transmission Error between MAIN Remote Controller and SUB Remote Controller 0 0 0cccccccoeecesscesnececccsseceesceseeceesceseeeeecoess 157 4 35 Field Setting Switch Abnormality oooccccccconcnccccnnnnncnnnancononanconnnonanons 158 4 36 Ut Address Duplication of Centralized Controller nnnannenannnnennnaennn 160 4 37 Transmission Error Between Centralized Controller a
98. erence between suction side and discharge side of four NO Defective compressor 90 Normal Unit is in 3 min standby mode Check the compressor Contact the power company Replace the power cable Defective electronic expansion valve Defective four way valve Check the compressor Service Diagnosis SiBE281013 Symptom based Troubleshooting 2 6 Equipment Operates but does not Provide Cooling Applicable Model Supposed Causes Service Diagnosis All models of SkyAir series Overcurrent relay for compressor Overcurrent relay may act due to the following reasons Lower voltage of power supply Excess level of high pressure Insufficient size of power cable Defective compressor Compressor protection thermostat Compressor protection thermostat may act due to the following reasons Internal leakage of four way valve There is no difference between suction and discharge temperature Insufficient compression of compressor Incorrect refrigerant charge leak Defective electronic expansion valve Insufficient circulation of refrigerant Defective thermistors or thermistor out of position 91 Symptom based Troubleshooting SiBE281013 Troubleshooting A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Measure the temperature of suction air and discharge air Temperature difference Suction air temp Discharge air temp
99. ew installation site has sufficient strength to withstand the weight of the equipment If the installation site does not have sufficient strength and if the installation work is not conducted securely the equipment may fall and cause injury vi Introduction vil SiBE281013 Check to make sure that the power cable plug is not dirty or loose then insert the plug into a power outlet securely If the plug has dust or loose connection it may cause an electrical shock or fire Be sure to install the product correctly by using the provided standard For unitary type installation frame only Incorrect use of the installation frame and improper installation may cause the equipment to fall resulting in injury Be sure to install the product securely in the installation frame mounted on the For unitary type window frame If the unit is not securely mounted it may fall and cause injury When replacing the coin battery in the remote controller be sure to disposed of the old battery to prevent children from swallowing it If a child swallows the coin battery see a doctor immediately Installation of a leakage breaker is necessary in Some cases depending on the conditions of the installation site to prevent electrical shocks Do not install the equipment in a place where there is a possibility of combustible gas leaks If the combustible gas leaks and remains around the unit it may cause a fire Check to see if the parts and wire
100. except in the individual mode for those in parentheses Even if the setting are made for the entire group the display always indicates 01 2 For FHQG the second code No of the Airflow range setting is set at 03 3 88 may be displayed to indicate the remote controller is resetting when returning to the normal mode 2 3 1 Detailed Explanation of Setting Modes Filter Cleaning Sign Interval When Display is selected in Filter cleaning sign after the unit runs for certain time Filter cleaning will be displayed on the remote controller This setting is used when the display interval of Filter cleaning needs to be changed on occasions such as when the filter has been heavily contaminated B i ee Long Life Filter Setting 0 20 2 500 hrs Contamination Light 1 250 hrs Contamination Heavy Remote Controller Thermistor Select the thermistor to control room temperature Pe Thermistor that controls room temperature Indoor unit suction thermistor The factory setting for the Koord Code No is 02 and room temperature is controlled by the indoor unit suction air thermistor When the Second Code No is set to 01 room temperature is controlled by the indoor unit suction air thermistor and the room temperature thermistor in remote controller as following figures Room temperature thermistor in remote controller and indoor unit suction air thermistor Field Setting 57 Field Setting from Remote Controller SiB
101. follows 1 3 1 BRC1D528 Insert a flat head screwdriver into the recess between the upper and lower part of the remote controller as shown in the illustration below Gently pry off the upper part of the controller working from the 2 possible positions Upper part of the remote controller Lower part of the remote controller Turn the MAIN SUB changeover switch on the PCB to S The switch is set to lb MAIN factory setting M Set the switch to SUB 1 3 2 BRC1E51A7 The designation of the main and sub remote controllers can be swapped Note that this change requires turning the power off and then on again Basic screen is displayed Press Press and Cancel hold Cancel button button for 4 once seconds or more Select Main remote controller or Sub remote controller using the A V Up Down buttons and then press Menu Enter button es bre lak areal Press Menu Enter i and press Menu Enter button l Field setting Item 2 js button em Sie menu IS Press Cancel button displayed displayed displayed Field setting Main Sub changeover Main Sub changeover Outdoor status display Fan forced operation ON Main Sub changeover Main remote contr Main remote contr Filter element sian UFF return Setting return Release Return Setting Remote Controller 15 Wired Remote Controller SiBE281013 1 4 Centralized Control Group No Sett
102. four seconds Left button d Be sure to press the part with the symbol d Used to highlight the next items on the left hand side Each screen is scrolled in the left hand direction Home leave settings are enabled with this button kept pressed for at least four seconds 13 Wired Remote Controller 14 8 9 SiBE281013 On Off button Press this button and system will start Press this button again and system will stop Operation lamp Green This lamp lights up during operation This lamp blinks if an error occurs 10 Cancel button Used to return to the previous screen 11 LCD with backlight The backlight will be light for approximately 30 seconds by pressing any operation button Operate buttons excluding the On Off button while the backlight is lit If two remote controllers are used to control a single indoor unit the backlight of the remote controller operated earlier than the other one will be lit Remote Controller SiBE281013 Wired Remote Controller 1 3 MAIN SUB Setting when Using 2 Remote Controllers Situation The MAIN SUB setting is necessary when 1 indoor unit is controlled by 2 remote controllers When you use 2 remote controllers control panel and separate remote controller set one to MAIN and the other to SUB Setting The remote controllers are factory set to MAIN so you only have to change 1 remote controller from MAIN to SUB To change a remote controller from MAIN to SUB proceed as
103. frigerant system such as refrigerant shortage faulty compressor NO etc Conduct inspection Is the discharge pipe thermistor correctly connected to outdoor unit PCB A1P No Connect correctly YES Is the discharge pipe thermistor attached to the discharge pipe NO Attach the thermistor YES CHECK 1 Is the discharge pipe thermistor characteristic normal NO Replace the discharge pipe thermistor YES Replace the outdoor unit PCB A1P i Note 1 Temperature varies depending on model type Modd emee RZOG71 110 C RZQG100 140 115 C 30 GB Refer to P 165 132 Service Diagnosis SiBE281013 Troubleshooting by Remote Controller 4 19 High Pressure Switch System Abnormality gt O gt Remote 1 Controller Display Applicable RZQG125 140 Models Method of Error The protection device circuit checks continuity in the high pressure switch S1PH Detection Error Decision When there is no continuity in the high pressure switch during compressor stops operating Conditions Supposed Incomplete high pressure switch Causes Defective connection of high pressure switch connector Defective outdoor unit PCB Disconnected lead wire Troubleshooting A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Is protection high pressure switch connector 1 correctly connected to
104. ge warning Abnormal refrigerant shortage Maintains a certain level of high pressure High pressure 1 As compressor frequency decreases high pressure decreases Indoor heat exchanger gen Th1 ann Wte 77 A decrease in evaporator gt capacity frequently puts the system in geirosi operation Low pressure 72 gt a a a A ge eee ee eee When frequency sop to the lowest a decrease in low Suction superheat degree increases pressure becomes larger Drooping control by suction superheat degree Prevention of oil to heat exchanger from being retained Suction superheat degree Compressor frequency In response to decreased evaporator capacity caused by refrigerant shortage capacity is Reaches the lowest frequency controlled in the inverter in order to maintain high E pressure which resulting in a rise in frequency The maxi num opening degree of the electronic expansion valve 480 pulses Electronic expansion valve Electronic expansion valve control by avoiding superheat operation Degree of inadequate refrigerant Adequate level Inadequate Heating Pressure sensor High Pressure Intermediate heat Low Pressure exchanger thermistor 3 3 This measured temperature is used to calculate the equivalent saturation pressure of the refrigerant Refer to P 183 Service
105. hand operate valve that prevents refrigerant from outflow Differences Pressure proof hose Change in service port diameter Use of nylon coated material for HFC resistance Charging cylinder Ne i Can not be used Specifications Use weigher for refrigerant charge listed below to charge directly from refrigerant cylinder Differences The cylinder can not be used for mixed refrigerant since mixing ratio is changed during charging When R 410A is charged in liquid state using charging cylinder foaming phenomenon is generated inside charging cylinder 189 Precautions for New Refrigerant R 410A SiBE281013 190 9 Weigher for refrigerant charge Specifications High accuracy TA101A for 10 kg cylinder 2g TA101B for 20 kg cylinder 5g Equipped with pressure resistant sight glass to check liquid refrigerant charging A manifold with separate ports for HFCs and previous refrigerants is equipped as standard accessories Differences Measurement is based on weight to prevent change of mixing ratio during charging 10 Charge mouthpiece Specifications For R 410A 1 4 gt 5 16 2 min gt 2 5 min Material is changed from CR to H NBR Differences Change of thread specification on hose connection side For the R 410A use Change of sealer material for the HFCs use Appendix e Daikin Industries Ltd s products are manufactured for export to numerous countries throughout the worl
106. he LED display for RETURN 1 turns ON Pressing the MODE BS1 button will bring the system to the Setting mode 1 D e a a a a a a e m a a i O ON 6 OFF BLINK C4 Indoor heatexchangerthermistor___ o olOejeledolelooVcer oleo co o EX e a ojojojejej j ojojojojoj j j 3 Abnormal high pressure ojajojejejejo ojojojojojejejee E4 Abnormallowpressure o a clelelolelelalo ololelelele a ojajojejejojejojo ojojojeje jeje gl DC motor 1 lock motor 1 lock o o jo a Abnormal outdoor fan motor DC motor 2 lock Abnormal inverter transmission Abnormal electronic Disconnected electronic expansion valve connector expansion valve Malfunction due to wet conditions ES a ll paaga pipe temperature poagn P rlelelcleleleletalelelolo Habre eutoo ar emisor BilGoecoooooneood oja ojelelele o o o lolo ola o e e e o o o ooo alo lolee e e o o o olo e eee ojalo e e o e e o o o o eee olalole e o e o o o o oe e e ojalojelalelelelo olololelelele ojalojelalelelo ololololelelele ojalolelalolelelo olololelelele Frere rl eesse ojojojeejojejejo jo ojojejejee _PJ_ Faulty capacity setting o ojojejojojejojojojojojejejee Faulycapaciy seting oo era electa fie DODEQODO Cu enorma poner PP Pll fe ieteleteletels supply voltage 0 0 o o elelole ajalofelelolelejo o oiojelelele ojalofelolelolejojo oiojelelele elelelolololoiolelelele 76 Field Setting SiBE281013 Emergency Operation 4 Emergency Operatio
107. he surface of outdoor heat exchanger deteriorates heating capacity When the amount of adhered frost exceeds a certain level the operation will automatically switch to the cooling cycle to melt the frost When the frost is melted the normal heating operation will be resumed 3 1 11 Draft Avoidance Control In order to prevent cold wind from directly blowing to the user when the indoor heat exchanger temperature is low such as the timing that heating started and defrost ended this control has the function of changing the airflow rate to LL tap and fixing the airflow direction to horizontal 32 Function and Control SiBE281013 Function Details 3 2 Outdoor Unit 3 2 1 Abnormal Stop When the following items show abnormal values the thermostat turns OFF and error is determined based on the number of retry in order to protect the compressor and other devices Number of retry 0 12 MPa or less continues for 5 minutes 10 times in 200 minutes HPS activated or High pressure over 3 92 MPa continues for 1 minute 9 mes In 200 minutes RZQG71LV1B Temperature over 110 C continues for 15 Discharge pipe minutes or temperature exceeds 125 C temperature RZQG100 140LV1B Temperature over 115 C continues for 10 minutes or temperature exceeds 125 C 3 2 2 Restart Standby To prevent compressor from frequent ON OFF and equalize pressure in refrigerant line conducts forced thermostat OFF for 3 minutes after compressor stopping Moreover out
108. he service mode After having entered the field setting mode press the inspection test operation button for 4 seconds or more 3 Select the mode No Set the desired mode No with the up down temperature setting button 4 Select the unit No Select the indoor unit No set with the time mode START STOP button 5 Select the desired error history No or sensor data No with or button 6 Each data displays Refer to the table below display 7 Return to the normal operation mode Press the inspection test operation button once Nede Function Content and Operation Method Example of Remote Controller Display Error History You can change the history with the programming time up Past error code down button UNITNo om ER CODE a SETTING Error history 1 Newest l 3 Oldest 00 displayed for 4 and subsequent Sensor Data Select the display thermistor Display with the programming time up Thermistor type down button Display thermistor y Temperature tut Remote controller thermistor UNIT No f gt SETTING Remote Controller 21 Service Mode SiBE281013 3 1 2 Service Setting JOULE Y DAIKIN Mode No Field Setting Mode 5 5 Second Code No First Code No 1 2 6 1 Enter the field setting mode Press the inspection test operation button for 4 seconds or more 2 Enter the maintenance mode After having entered the field setting mode press the inspection test operation butto
109. he unit is in operation The PCB s memory IC does not contain the capacity code The capacity setting adaptor is not connected The unit is in operation The capacity that is set does not exist for that unit m Defective capacity setting adaptor connection m Defective indoor unit PCB The capacity is set in the PCB s memory IC A capacity setting adaptor that matches the capacity of the unit is required in the following case In case the indoor PCB installed at the factory is for some reason changed at the installation site the capacity will not be contained in the replacement PCB To set the correct capacity for the PCB you have to connect a capacity setting adaptor with the correct capacity setting to the PCB The capacity setting for the PCB will become the capacity setting of the adaptor because the capacity setting adaptor has priority A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 112 The indoor unit PCB was replaced with a spare PCB Was the capacity setting adaptor mounted when replacing the PCB NO Replace the indoor unit PCB YES YES Replace the indoor unit PCB Install a capacity setting adaptor Service Diagnosis SiBE281013 Troubleshooting by Remote Controller 4 8 Transmission Error between Indoor Unit PCB and Adaptor PCB Remote Controller Display Applicable Models Method of Error Detec
110. hoo during cooling or defrosting NO YES NO NO Is the piping secured Power supply side Sound of shoo generates just after operation start or stop or defrosting start or stop YES Does the fan contact with other parts Sound of shoo generates during cooling or after operation stop YES Does the pipe contact with casing Creak during heating and after operation stop YES Is the noise flushing sound from pressure reducing valve or capillary tube NO Is this an impact noise at the start end of defrosting YES NO Overcharge of refrigerant Air mixed in refrigerant system Flushing noise due to refrigerant shortage Sound of shoo 96 Correction of installation Reinforcement for ceilings or walls Insert shock absorber in mounting section or strengthen the mounting section Normal The sound is flushing noise of gas refrigerant inside air conditioning unit Insert cushion materials to the pipe support such as saddle Normal The noise is a sound generated at the time of gas refrigerant flow change or stop Disassemble and remove parts contact Normal Operation sound of draining device Correct piping manually or attach a dead weight to pipe Normal Creak generates by shrinkage of resin parts due to temperature change Normal It is normal After vacuum drying charge correct am
111. hooting by Remote Controller 4 25 Stall Prevention Time Lag gt Remote Controller Display Applicable RZQG Models Method of Error The error is detected by converting the current flowing to power transistor into voltage with CT1 Detection DC current sensor Inverter PCB detects the disorder of position signal Error Decision When compressor overload and change of load are detected when startup Conditions Supposed Stop valve is not opened Causes Pressure differential startup Defective outdoor unit inverter PCB Defective compressor lock Service Diagnosis 143 Troubleshooting by Remote Controller SiBE281013 Troubleshooting A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Check the installation conditions Is the stop valve open pa Open the stop valve YES Is the difference between high and low pressure before startup not more than 0 2MPa NO e Insufficient pressure equalization Check refrigerant system YES Turn OFF the power supply and then disconnect the connection between the compressor and inverter CHECK 4 Continuity check in the power transistor IG BT Is the continuity normal NO Replace the outdoor unit PCB A1P YES The compressor is grounded and short circuited YE S Replace the compressor NO Compressor inspection Inspect according to the diagnosis procedure for
112. id state with cylinder in upright position Caution Do not lay cylinder on its side during charging since it cause refrigerant in gas state to enter the system m Handling of cylinders 1 Laws and regulations R 410A is liquefied gas and the High Pressure Gas Safety Law must be observed in handling them Before using refer to the High Pressure Gas Safety Law The Law stipulates standards and regulations that must be followed to prevent accidents with high pressure gases Be sure to follow the regulations 2 Handing of vessels Since R 410A is high pressure gas it is contained in high pressure vessels Although those vessels are durable and strong careless handling can cause damage that can lead to unexpected accidents Do not drop vessels let them fall apply impact or roll them on the ground 3 Storage Although R 410A is not flammable it must be stored in a well ventilated cool and dark place in the same way as any other high pressure gases It should also be noted that high pressure vessels are equipped with safety devices that releases gas when the ambient temperature reaches more than a certain level fusible plug melts and when the pressure exceeds a certain level spring type safety valve operates 184 Appendix SiBE281013 Precautions for New Refrigerant R 410A 3 3 Service Tools R 410A is used under higher working pressure compared to previous refrigerants R 22 R 407C Furthermore the refrigerating
113. ing 1 4 1 BRC1D528 In order to conduct the central remote control using the central remote controller and the unified ON OFF controller Group No settings should be made by group using the operating remote controller Make Group No settings for central remote control using the operating remote controller 1 During normal mode press and hold the button for 4 seconds or more to enter the Field Setting Mode 2 Select the Mode No i with the button 3 Select the Group No for each group with the button Group numbers increase in the order of 1 00 1 01 1 15 2 00 4 15 4 Press or oe button to set the selected Group No 5 Press gt button to return to the normal mode BRC1D528 Field setting NOTICE Enter the group No and installation place of the indoor unit into the installation table Be sure to keep the installation table with the operation manual for maintenance 16 Remote Controller SiBE281013 Wired Remote Controller 1 4 2 BRC1E51A7 In order to conduct the centralized remote control using the centralized remote controller and the unified ON OFF controller Group No settings should be made by group using the operating remote controller Make Group No settings for centralized remote control using the operating remote controller 1 lt Basic screen gt Press and hold Cancel button for 4 seconds or more Field setting menu
114. ing a test run the unit returns to normal operation 10 Check all functions according to the operation manual 1 4 Precautions Regarding Test Run la Field Setting In order to detect stop valves failing to open operation of the unit is compulsorily performed in cooling for 2 3 minutes during the first test run even if the remote controller was set to heating operation In this case the remote controller will have kept displaying the heating symbol all the time and the unit will switch to heating operation automatically after elapse of that time In case you cannot operate the unit in test run mode for any unusual reason refer to Failure diagnosis at the moment of first installation on page 52 In case of a wireless remote controller execute the test run only after having installed the indoor unit decoration panel with infrared receiver first In case the panels of indoor units are not yet installed to the indoor units make sure to shut off the power supply after finishing the complete test run A complete test run surely includes shutting off power after having performed a normal operation stop on the remote controller Do not stop operation by turning circuit breakers off 51 Test Operation SiBE281013 1 5 Failure Diagnosis at the Moment of First Installation 52 In case nothing is displayed on the remote controller the current set temperature does not display check for any of the following abnormalities befor
115. inutes Compressor frequency 1 step 6 sec e Outdoor heat exchanger temperature 8 liquid gt Indoor heat exchanger temperature e Outdoor heat exchanger temperature AN SDE Stepping down dle ci Stepping down current A current B e Outdoor heat exchanger temperature OR liquid lt Indoor heat exchanger temperature e Outdoor heat exchanger temperature liquid lt 25 C RZQG71LV1B RZQG100 140LV1B es AOR 42 Function and Control SiBE281013 Function Details 3 2 19 Low Outdoor Air Temperature Control in Cooling Operation Controls compressor and outdoor unit fan under low outdoor air temperature condition to secure pressure difference between high and low pressure Hp High pressure Lp Low pressure Ta Outdoor air temperature Tfin Inverter fin temperature e Hp Lp gt 1 08MPa eHp Lp lt 0 93MPa OR Hp lt 2 94MPa OR e OR g Compression ratio lt 2 1 Normal operation e Compression ratio gt 2 4 Hp lt 1 86MPa Ta gt 27 C eTa lt 25 C Outdoor unit fan Compressor operation frequency 1 step 90 sec restriction refer to the followings we gt 0 98MPa OR ptas ere OR Compression ratio gt 2 2 amp Compression ratio lt 1 8 Hp gt 2 25MPa Hp lt 1 57MPa Outdoor unit fan Outdoor unit fan 1 step 90 sec Step 1 eHp Lp gt 0 88MPa a Hp Lp lt 0 78MPa EN o p gt e Compression ratio gt 2 0 e Compression ratio lt 1 8 OR ere Ve amp Hp lt 1 57MPa Hp gt
116. ion error has occurred In normal condition the error code of the last problem is displayed Press the INSPECTION TEST button to select inspection The equipment enters the inspection mode The Unit indication is displayed and the Unit No display shows flashing 0 indication Set the Unit No Press the UP or DOWN button and change the Unit No display until the buzzer 1 is generated from the indoor unit 1 Number of beeps 3 short beeps Conduct all of the following operations 1 short beep Conduct steps 3 and 4 Continue the operation in step 4 until a buzzer remains ON The continuous buzzer indicates that the error code is confirmed Continuous beep No abnormality on OFF Press the MODE selector button The left 0 upper digit indication of the error code flashes Error code upper digit diagnosis Press the UP or DOWN button and change the error code upper digit until the error code matching buzzer 2 is generated B The upper digit of the code changes as shown below when the UP and DOWN buttons are pressed L as oro Be or Pe 200 aci l el el a l olle le UP button DOWN button 2 Number of beeps Continuous beep Both upper and lower digits matched Error code confirmed 2 short beeps Upper digit matched 1 short beep Lower digit matched Press the MODE selector button The right O lower digit indication of the error code flashes Error code
117. ise etc A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 108 Turn OFF the power supply and turn the power ON again Replace the indoor unit PCB The error may be caused by an external factor rather than damaged parts Locate the cause and correct the situation Service Diagnosis SiBE281013 Troubleshooting by Remote Controller 4 5 Drain Water Level System Abnormality a iel 0 Remote Controller Display Applicable All models of indoor unit Models Method of Error By float switch OFF detection Detection Error Decision The error is generated when the water level reaches its upper limit and when the float switch Conditions turns OFF Supposed Defective drain pump Causes Improper drain piping work Drain piping clogging Defective float switch Defective indoor unit PCB Defective short circuit connector X15A on PCB Service Diagnosis 109 Troubleshooting by Remote Controller Troubleshooting SiBE281013 AN Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Is the unit a cassette type nO YES YES Is the optional drain pump kit installed NO Is the short circuit connector connected to X15A on the indoor unit PCB YES NO Check the continuity of the short circuit connector Is there continuity NO YES
118. it Fan Operates but Compressor does not Operate 86 2 4 Cooling Heating Operation Starts but Stops Immediately 88 2 5 After Unit Shuts Down It cannot be Restarted for a While 89 2 6 Equipment Operates but does not Provide Cooling 91 2 7 Equipment Operates but does not Provide Heating 93 2 8 Equipment Discharges White Mist annen eneen nennnenn 95 2 9 Equipment Produces Loud Noise or Vibration 96 2 10 Egq ipment Discharges DUST sscce dosinsterdeieetelidetdcdoteatsheddebeellieaineudddindes 97 2 11 Remote Controller LCD Displays 35 nennen enn ennnenvennnenvennen 98 2 12 Swing Flap does not Operat a n ATE 99 Troubleshooting by LED Indications annen eenen een 101 3 1 Troubleshooting by LED on the Indoor Unit cc ceceeeeeeeeeeeeeneeees 101 3 2 Troubleshooting by LED on Outdoor Unit PCB anne 101 Troubleshooting by Remote Controller annen eneen 102 4 1 Procedure of Self diagnosis by Remote Controller 102 4 2 Error Codes and Description aaneen en nenene eenen ven ervenenvens 106 do Dally DEVICES nensaha O A 107 4 4 Indoor Unit PCB Abnormality aaneen een ven enrenaneneenns 108 4 5 Drain Water Level System Abnormality aan oaeen eneennen 109 4 6 Indoor Unit Fan Motor Abnormality annen ee nennen 111 4 7 Capacity Setting Abnormality annen en eeneenenenens ennen vens 112 4 8 Transmi
119. it is in wet operation Refer to Kelsl el to eliminate the causes of wet operation Restart operation Error is displayed again 10 44 Refer to P 165 101 43 Refer to P 171 01 3 Refer to P 173 130 SiBE281013 Replace the defective thermistor Replace the pressure sensor Replace the outdoor unit PCB A1P External factor Noise etc Service Diagnosis SiBE281013 Troubleshooting by Remote Controller 4 18 Discharge Pipe Temperature Control Remote Controller Display Applicable Models Method of Error Detection Error Decision Conditions Supposed Causes Service Diagnosis Gn gt RZQG The error is detected according to the temperature detected by the discharge pipe temperature Sensor When the discharge pipe temperature rises to an abnormally high level When the discharge pipe temperature rises suddenly When the discharge pipe temperature does not rise after operation start Defective discharge pipe thermistor Defective connection of discharge pipe thermistor Refrigerant shortage Defective compressor Disconnection of discharge pipe thermistor Defective outdoor unit PCB 131 Troubleshooting by Remote Controller SiBE281013 Troubleshooting A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Is the discharge pipe temperature above the criteria 1 Abnormality in re
120. lary Check if the main valve unit of EV operates by noise vibration Is the check valve clogged Check if there is a temperature difference before and after check valve gt If YES the check valve is caught Is the HPS normal Check continuity by using a tester Is the outdoor unit installed under such conditions that Visual inspection short circuit easily occurs Is the piping length 5 meters or less Visual inspection Does air enter the refrigerant system Conduct refrigerant collection and vacuum drying and then add proper amount refrigerant Is the refrigerant overcharged Conduct refrigerant collection and vacuum drying and then add proper amount refrigerant In Heating Operation Check items Possible causes Judgement Does the indoor unit fan run normally Visual inspection Is the indoor unit heat exchanger clogged Visual inspection Is the indoor unit installed under such conditions that Visual inspection short circuit easily occurs Is there clogging before or after the EV capillary Check if there is a temperature difference before and after EV capillary Check if the main valve unit of EV operates by noise vibration Is the check valve clogged Check if there is a temperature difference before and after check valve gt If YES the check valve is caught Is the HPS normal Check continuity using a tester Is the piping length 5 meters or less Visual inspection Does air enter the refrigeran
121. ling Defective outdoor unit fan In cooling Overcharge of refrigerant Defective outdoor unit PCB A2P Defective outdoor unit PCB A1P 121 Troubleshooting by Remote Controller Troubleshooting SiBE281013 A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Is the stop valve open Are the connection of the connector on PCB and the connection to the switch unit normal After turning OFF the power and stopping the compressor for 10 minutes check the items below Is there continuity in the high pressure switch YES Is there continuity in the NO high pressure switch connecting line YES In cooling In heating Are the characteristics of the outdoor unit intermediate thermistor normal characteristics of the indoor unit intermediate thermistor normal NO Turn the power ON and restart YES 43 is displayed NO CHECK 2 High pressure is too high YES NO 101 41 Refer to P 168 e 10 4 Refer to P 174 122 Open the stop valve Correctly connect Replace the high pressure switch with no continuity Replace the connecting line Replace the outdoor unit intermediate heat exchanger thermistor Replace the indoor unit intermediate heat exchanger thermistor Replace the high pressure switch Replace the outdoor unit PCB A2P If erro
122. lowing reasons Lower voltage of power supply Excess level of high pressure Insufficient size of power cable Defective compressor m Compressor protection thermostat Compressor protection thermostat may act due to the following reasons Internal leakage of four way valve There is no difference between suction and discharge temperature Insufficient compression of compressor Incorrect refrigerant Defective electronic expansion valve Insufficient circulation of refrigerant Service Diagnosis 89 Symptom based Troubleshooting Troubleshooting SiBE281013 A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Turn the operation switch ON and OFF then wait at ON side Does the unit start operation after 3 minutes YES NO Is the discharge side of compressor hot after unit stop NO Not so hot YES Check on the cause why overcurrent relay for compressor or compressor protection thermostat acted Electric system Power supply voltage is within 10 of NO specified voltage YES Is the size NO of power cable through total length correct YES Refrigerant circuit After vacuum drying charge correct amount of refrigerant Then start operation again Is there any temperature difference between inlet and outlet of electronic expansio NO Is there any temperature diff
123. ly Voltage Imbalance 146 4 28 Defective Capacity Setting occccocnncccocococonnnconnnnnconaconononcnconanoncnnnnos 147 4 29 Refrigerant Shortage Alert an aann eneen en eeneneennenvenervensnvens 148 4 30 Refrigerant Shortage Error nnen nen eneen eneenene eenen ennervenenvens 149 4 31 Power Supply Voltage Abnormality anna eeen en eenen enenens 151 4 32 Transmission Error between Indoor and Outdoor Unit 153 4 33 Transmission Error Between Remote Controller and Indoor Unit 156 4 34 Transmission Error between MAIN Remote Controller and SUB Remote CANT 157 4 35 Field Setting Switch Abnormality a aannnn enn eenn err eenennen 158 4 36 iit Address Duplication of Centralized Controller oo 160 4 37 Transmission Error Between Centralized Controller and NOO KI netten ende ndenenben neee eden nde emetic deedeetee 161 4 38 Transmission Error between Indoor and Outdoor Unit Piping and Wiring Mismatch Refrigerant Shortage ann uunn ennen enen 163 O aaien EE AA 165 Service Diagnosis SiBE281013 Maintenance Inspection 1 Maintenance Inspection 1 1 Overview When performing maintenance you should at least perform the following inspections Indoor unit Transmission wiring between indoor and outdoor units What about switch capacity What about cable thickness To dedicated Jl et ATAR What about voltage and current Refrigerant pi
124. machine oil has been changed from Suniso oil to Ether oil and if oil mixing is occurred sludge results in the refrigerants and causes other problems Therefore gauge manifolds and charge hoses that are used with a previous refrigerant R 22 R 407C can not be used for products that use new refrigerants Be sure to use dedicated tools and devices m Tool compatibility Compatibility HFC HCFC Reasons for change R 410A R 407C R 22 e Do not use the same tools for R 22 Gauge manifold and R 410A Charge hose e Thread specification differs for R 410A and R 407C Charging cylinder X e Weighting instrument used for HFCs Gas detector e The same tool can be used for HFCs Vacuum pump e To use existing pump for HFCs pump with reverse flow vacuum pump adaptor must be preventive function installed Weighting instrument Charge mouthpiece e Seal material is different between R 22 and HFCs e Thread specification is different between R 410A and others Anne oo OO l e Due to refrigerating machine oil Pipe assembling oil change No Suniso oil can be used Refrigerant recovery e Only f19 1 is changed to 1 2H material while the previous material is O As for the charge mouthpiece and packing 1 2UNF20 is necessary for mouthpiece size of charge hose Refrigerant piping See the chart below Copper tube material and thickness Pipe size Material Thickness Material Thickness t mm t mm O Soft Ann
125. mistors proceed as follows Disconnect the thermistor from the PCB 2 Read the temperature and the resistor value Check if the measured values correspond with the values in the table on the next pages Service Diagnosis 165 Troubleshooting by Remote Controller SiBE281013 Thermistor Resistance Temperature Characteristics Indoor unit FCGG FHOG Suction air thermistor Heat exchanger thermistor Intermediate heat exchanger thermistor Outdoor unit FZGE Themeor Outdoor air thermistor Suction pipe thermistor Heat exchanger distributor pipe Intermediate heat exchanger thermistor Liquid pipe thermistor R10T Radiation fin thermistor 166 Service Diagnosis SiBE281013 Troubleshooting by Remote Controller Outdoor unit _RZQG Thermistor R2T Discharge pipe thermistor Service Diagnosis 167 Troubleshooting by Remote Controller SiBE281013 liel Evaluation of Abnormal High Pressure Abnormally high pressure level is mostly caused by the condenser side The following contents are provided by service engineer based on their field checks Further the number is listed in the order of degree of influence In Cooling Operation Check items Possible causes Judgement Does the outdoor unit fan run normally Visual inspection Is the outdoor unit heat exchanger clogged Visual inspection Is there clogging before or after the EV capillary Check if there is a temperature difference before and after EV capil
126. n 4 1 Forced Operation As emergency operational methods there are three methods as shown below Choose the best method that is suitable for each purpose of use Operation Activation Application Setting method Thermistor of Fan Drain Remark detection protection Pump device By SS1 switch Emer enc of indoor unit X X Boem nn PCB No temperature operation outdoor unit x x PCB By Inspection Test Operation When button of the checking remote Test the controller No temperature Operation operation control after By Test installation Operation button of outdoor PCB Press the When the wieless Emergency Remote controller moto operation transmission stop switch of the actuators such as fan controller is lost indoor unit and pump are ON panel Emergency operation Emergency Operation Forced operation 1 Turn off the power supply 2 Changeover the switch of indoor unit PCB SS1 from NORM Normal to EMG Emergency NORM EMG NORM EMG Factory setting Emergency operation 3 Changeover the switches of outdoor unit PCB DS1 as shown below Factory setting Cooling Heating 4 When the power is turned ON the operation will be forcibly activated Precautions 1 Make sure that the power is turned off before changing the switch 2 When returning to the normal operation make sure that the power is turned off before returning each switch to the original position 3 When the
127. n Details 3 2 8 General Electronic Expansion Valve Control When cooling heating PI control of electronic expansion valve is conducted to keep the heat exchanger outlet subcooling degree constant e Target heat exchanger outlet subcooling degree gt actual heat exchanger outlet subcooling degree The electronic expansion valve will close Target heat exchanger outlet subcooling degree lt actual heat exchanger outlet subcooling degree The electronic expansion valve will open The value of target heat exchanger outlet subcooling degree varies depending on change of discharge pipe superheat degree of inverter compressor etc 3 2 9 Hot Start Control Only in Heating Operation Function and Control In heating when performing a startup or after the defrosting cycle has been completed the indoor fan will be controlled in order to prevent cold air draft and secure the starting performance quick pressure build up Indoor unit fan OFF Heating operation is turned ON with remote controller Indoor unit fan LL tap e 1 minute elapsed with LL tap e Condition A is met e Condition B is met e 3 minutes elapsed after compressor startup amp OR Indoor unit fan L tap e 1 minute elapsed with L tap e Condition A is met e Condition B is met e 5 5 minutes elapsed after compressor startup Indoor unit fan M tap Continuing L tap on indoor unit without M tap equipped amp OR e 1 minute elapsed
128. n azeotropic mixture Quasi azeotropic mixture Sheba lof HFC32 HFC125 and of HFC32 and HFC125 HFC134a 1 1 3 2 MPa gauge pressure 4 0 MPa gauge pressure 2 75MPa gauge pressure 32 6 kgf cm 40 8 kgf cm 28 0 kgf cm Single component refrigerant Refrigerant oil Synthetic oil Ether Mineral oil Suniso Ozone destruction En AA Combustibity 1 Non azeotropic mixture refrigerant mixture of 2 or more refrigerants having different boiling points 2 Quasi azeotropic mixture refrigerant mixture of 2 or more refrigerants having similar boiling points 3 The design pressure is different at each product Please refer to the installation manual for each product Reference 1 MPa 10 19716 kof cm C 32 125 50 50 wt 0 0 gt gt 2 TTT ORBEA BEBO a ERK SN Ets LNE Nn 10 0 RK lt gt LS IIS ES BEE ERE AS SS HS DJ E E A E TRAE SSA IO aN SA ZA in IEEE RIRS wid oe BENE RLA Eh EE SST VX AB Fl NN i 2 0 W CU o BENNEN S a 1 wa PA A LAA f 0 OA a PAAL pj at nan 0 geene El La EA AAA H F A 0 EEE je A 0 A sande 0 Arana AA zs 50 100 150 200 250 300 Pressure Enthalpy curves of HFC 32 125 50 50wt 182 Appendix SiBE281013 Precautions for New Refrigerant R 410A m Thermodynamic characteristic of R 410A DAIREP ver2 0 Temperature Steam pressure Density Specific heat at constant
129. n for a minimum of 4 seconds 3 Select the mode No Set the desired mode No with the up down temperature setting button 4 Select the unit No Select the indoor unit No set with the time mode START STOP button 5 Carry out the necessary settings for each mode Mode 43 only possible for wireless remote controller e Incase of Mode 43 Press timer ON OFF button to decide the forced Fan ON e Incase of Mode 44 Set Fan speed with fan speed control button and Air flow direction with air flow direction adjusting button then press timer ON OFF button to decide e Incase of Mode 45 Select the changed unit No with or button then press timer ON OFF button to decide 6 Return to the normal operation mode Press the inspection test operation button 1 time Content and Operation Method Example of Remote Controller Display No Forced Fan ON Turns the fan ON for each unit individually UNIT No Vas l SETTING 43 l Individual Sets fan speed and air flow Setting direction for each unit individually when using group control Settings are made using the air flow direction adjust and fan speed adjust buttons Unit No Changes unit No Change Set the unit No after changing with the programming time up down button UNIT No CODE 22 Remote Controller SiBE281013 4 Inspection Mode 4 1 BRC1D528 Normal display No display Press the Inspection test button onc
130. n towards the power consumption from the system e g budget control limit power consumption during peak moments Setting 3 different demand setting can be selected by using terminal X801M m Demand 1 Close contact between COM and contact 1 m Demand 2 Close contact between COM and contact 2 m Demand 3 Close contact between COM and contact 3 Transmission connector on outdoor PCB X6A Power supply connector on outdoor PCB X77A 1 LNOP COM Output on X801M 12VDC 12mA Maximum wire length 100 meter X801M 1 LNOP COM Demand 1 Power consumption limitation in function of setting on DS1 Maximum Power Consumption Demand 2 Power consumption limitation set to 40 Demand 3 Forced thermostat OFF Field Setting 65 Field Setting from Remote Controller SiBE281013 2 7 Setting for Low Humidity Application Purpose Can be set when using the RZQG units for year round cooling in low humidity applications such as computer rooms EDP rooms technical rooms etc to increase the capacity of the unit Definition of Low Humidity Area BD z gt r ST e o ee ria reeset Relative 0 3 a TE Humidity O sle 30 TO A ae Bman 20 Senn eee pene eee eee ene nennen le Setting is only allowed in this area 10 ne AA 0 20 22 24 26 28 30 Indoor side temperature DB C Caution When using the LH settings outside the Low Humidity Area there is an increased risk of ice accum
131. n valve is opened to the fullest extent In heating When suction gas superheat degree is large compressor frequency is low and the electronic expansion valve is opened to the fullest extent even though heating load is heavy If high pressure is lower than saturated pressure for indoor heat exchanger temperature or indoor suction air temperature error is confirmed Refrigerant shortage Clogged refrigerant piping system Mismatching of wiring and piping Stop valve is not opened 149 Troubleshooting by Remote Controller SiBE281013 Troubleshooting A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred CHECK 10 Check for refrigerant shortage Is the refrigerant amount Collect refrigerant and recharge proper a proper amount of refrigerant after vacuum drying Check the inter unit wiring and piping between the indoor and outdoor units Is wiring and piping connection matched Match wiring and piping connection Check the refrigerant piping system for clogging Refer to P 175 150 Service Diagnosis SiBE281013 Troubleshooting by Remote Controller 4 31 Power Supply Voltage Abnormality Remote Controller Display Applicable Models Method of Error Detection Error Decision Conditions Supposed Causes Service Diagnosis Se I JE mr RZQG The error is detected according to the volt
132. ncnocncnonanncnanononcnos 18 Zelk Applicable MODOS o o le 18 2 2 Names and FUNCION Sit data bale 18 23 MAIN SUB SC talados E 20 SON VIC MO a OE 21 Sul AA PPP enh entente ante 21 s INSPECCION MOGO aeina N T ie 23 AN BROIDO2 8er A nente 23 Wired Remote Controller SiBE281013 1 Wired Remote Controller 1 1 Applicable Models BRC1D528 Remote Controller BRC1E51A7 Remote Controller SiBE281013 Wired Remote Controller 1 2 Names and Functions 1 2 1 BRC1D528 eda ot fA se en gt ee MEE HE n 1E UID aas e qe ee e 7a ao Lic a L H HHA aor 97 semel iape et A zE BARFE 16 13 1518 19 20 21 5 24 29 33 gt EE Qe e C3 EU CA CS 35 OZ OD om Ae EJ Cr EJ E gt 36 B 30 31 32 34 1 ON OFF BUTTON 5 Press the ON OFF button to start or stop the system 2 OPERATION LAMP O The operation lamp lights up during operation or blinks if an error occurs 3 OPERATION MODE ICON 9 121 amp These icons indicate the current operation mode FAN DRY AUTOMATIC COOLING HEATING 4 VENTILATION MODE ICON SE SZ These icons indicate the current ventilation mode HRV only AUTOMATIC HEAT EXCHANGE BYPASS 5 VENTILATION ICON lt 5 The ventilation icon appears when the ventilation is adjusted with the ventilation amount button HRV only Simultaneously the ventilation amount is indicated by the fan speed icon 6 AIR CLEANING ICON This ic
133. nd A A 161 4 38 Transmission Error between Indoor and Outdoor Unit Piping and Wiring Mismatch Refrigerant Shortage es 163 ES nn E 165 Part ADD CN GIX Ciria a VIO 1 PING DIAGFAMS ss 179 ti AOC TE EE 179 1 2 RZQGTO0 14 OL V 1B rarr AA axta debs eanteeewnk 179 2 WNO DIA INS antennen tenen litis 180 A erkennen eee ee ee ees cee 180 22 Outdoor seeden o e habia 181 3 Precautions for New Refrigerant R 410A aaneen eenn 182 Sl Outline ut tesi ol laedccon 182 3 2 Refrigerant CyliNdeFS oooonccccnncnncconnncccnnnnocononononconononononnnnnnnonarononnncnnnos 184 e Sn A 185 Table of Contents SiBE281013 Introduction 1 Introduction 1 1 Safety Cautions Cautions and m Be sure to read the following safety cautions before conducting repair work Warnings m The caution items are classified into Warning and M Caution The N Warning items are especially important since they can lead to death or serious injury if they are not followed closely The AN Caution items can also lead to serious accidents under some conditions if they are not followed Therefore be sure to observe all the safety caution items described below m About the pictograms This symbol indicates the item for which caution must be exercised The pictogram shows the item to which attention must be paid This symbol indicates the prohibited action The prohibited item or action is shown in the illustration or near
134. ner Status High Pressure Running Current Air Outdoor Uni Fin Fouling Air i Note 1 Water in the refrigerant freezes inside the capillary tube or electronic expansion valve and is basically the same phenomenon as pump down 2 Dirt in the refrigerant clogs filters inside the piping and is basically the same phenomenon as pump down 3 Pressure differential between high and low pressure becomes low 82 Service Diagnosis SiBE281013 Symptom based Troubleshooting 2 Symptom based Troubleshooting 2 1 Overview Symptom Equipment does not operate Details of Measures Refer to P 84 Indoor fan operates but compressor does not Refer to P 86 operate Cooling heating operation starts but stops immediately Refer to P 88 4 After unit shuts down it cannot be restarted for a Refer to P 89 while Equipment operates but does not provide cooling Refer to P 91 dl Equipment operates but does not provide Refer to P 93 heating Equipment discharges white mist Refer to P 95 Equipment produces loud noise or vibration Refer to P 96 Equipment discharges dust Refer to P 97 10 Remote controller LCD displays 55 Refer to P 98 11 Indoor swing flap does not operate Refer to P 99 12 7 Equipment emits odor Room smell and cigarette odors accumulated inside the indoor unit are discharged with air Inside of the indoor unit must be cleaned It is normal The flap initializes for accu
135. ng Press Menu Enter button 54 In the case of group total setting Field setting list Mode SiBE281013 1 Press and hold Cancel button for 4 seconds or more Field setting menu is displayed 2 Select REFESMTIS in the field setting menu and press Menu Enter button Field setting list screen is displayed 3 Highlight the mode and select desired Mode No by using AV Up Down button 4 In the case of setting per indoor unit during group control When Mode No such as Ei EN PA EEN El are selected highlight the unit No and select Indoor unit No to be set by using AV Up Down button In the case of group total setting this operation is not needed In the case of individual setting per indoor unit current settings are displayed And Second Code No means no function 5 Highlight Second Code No of the First Code No to be changed and select desired Second Code No by using AV Up Down button Multiple identical mode number settings are available In the case of group total setting all of Second Code No which may be set are displayed as x is changed to Second Code No to be set And Second Code No means no function Field Setting SiBE281013 Field Setting from Remote Controller v 6 Press Menu Enter button Setting lt Setting confirmation screen gt confirmation screen is displayed Field setting list la 7 Select and press Menu En
136. ng upper limit frequency lt _ gt for 1 step every 20 seconds e Suction SH gt 12 C OR el Suction SH gt 10 C e EV opening degree 480 pls Function and Control SiBE281013 Function Details 3 2 15 Discharge Pipe Temperature Protection Control Electronic expansion valve opening degree and the compressor operating frequency will be controlled in order to avoid abnormal high compressor temperatures Td Discharge pipe temperature Compressor Operating Frequency Control Normal operation Td gt 105 C e Td lt 70 C e Upper limit frequency OR Maximum frequency e Td lt 105 C Compressor upper limit frequency Compressor upper limit frequency 1 step 20 sec 1 step 1 min e Td 2 110 C el continues for 5 minutes e Td gt A C Td lt 105 C e Td lt 70 C OR e amp Td lt 105 C e 5 min elapsed Compressor upper limit frequency RZQG71LV1B 12 steps RZQG100 140LV1B 9 steps e Td 2 B C continues for C minutes e Td 125 C Compressor stop Stopped 11 times in 200 minutes OR 10 times or less stopping in 200 minutes Abnormal stop F3 indication RZQG71LV1B RZQG100 140LV1B 100 C 115 C 110 C 115 C Electronic Expansion Valve Opening Degree Control Td Compressor discharge pipe temperature C Normal control Td gt 95 C Td lt 80 C Electronic expansion valve opening Td lt 90C Electronic expansi
137. nit PCB A2P If error is displayed again replace the inverter PCB A1P Service Diagnosis SiBE281013 Troubleshooting by Remote Controller 4 13 2 RZQG125 140 Remote Controller Display Applicable Models Method of Error Detection Error Decision Conditions Supposed Causes Service Diagnosis gt la al RZQG125 140 In cooling m Detect the continuity of high pressure switch S1PH with the protection device circuit m The error is detected by the outdoor unit intermediate heat exchanger thermistor R5T In heating m Detect the continuity of high pressure switch S1PH with the protection device circuit m The error is detected by the indoor unit intermediate heat exchanger thermistor RST m When the high pressure switch is activated 4 0 MPa m When the outdoor unit intermediate thermistor R5T detects the pressure shown below 3 92 MPa or more continuously for one minute Reference equivalent saturation temperature 62 C m When the indoor unit intermediate thermistor R3T detects the pressure shown below 3 92 MPa or more continuously for one minute Reference equivalent saturation temperature 62 C Stop valve is not opened Harness breaking or poor connector connection of the high pressure switch Defective high pressure switch Indoor unit suction filter is blocked In heating Defective high pressure switch Defective indoor unit fan In heating Outdoor heat exchanger is dirt In coo
138. nks entering INSPECTION mode 2 Inthe INSPECTION mode when the ON OFF button is pushed and held for 5 seconds or more the aforementioned error history display is OFF In this case after the error code blinks 2 times the code display turns to OO Normal and the unit No turns to 0 The INSPECTION mode automatically switches to the normal mode set temperature display 3 Operation halts due to error depending on the model or condition 4 Troubleshoot by turning OFF the power supply for a minimum of 5 seconds turning it back ON and then rechecking the LED display Troubleshooting by LED on Outdoor Unit PCB The following diagnosis can be conducted by turning ON the power switch and checking the LED indication on PCB A1P of the outdoor unit O LEDon LEDoff a LED blinks LED detection HIP Description Green Red Normal Power supply abnormality or defective outdoor unit PCB Note 2 Oo O Defective outdoor unit PCB Note 1 EES oa Activation of protection device Note 3 Note 1 Turn OFF the power supply and turn it ON again after 5 seconds or more Check the error condition and diagnose the problem 2 Turn OFF the power supply After 5 seconds or more disconnect the connection wire 2 Then turn ON the power supply If the HAP on the outdoor unit PCB flashes after about 10 seconds the indoor unit PCB is faulty 3 Also check for open phase The error detection monitor continue
139. not swing in the mode thermostat OFF mode 22 When operating in remote control thermostat the Normal operation thermostat turns off before temperature of The thermostat may be controlled with the remote control reaches the set temperature suction temperature body thermostat concurrently with the set temperature Service Diagnosis 83 Symptom based Troubleshooting SiBE281013 2 2 Equipment does not Operate Applicable Model All models of SkyAir series Supposed Causes Fuse blown or disorder of contact in operation circuit Defective operation switch or contact point Defective high pressure switch Defective magnetic switch for fan motor Activation or fault of overcurrent relay for fan motor Defective overcurrent relay for compressor Defective compressor protection thermostat Insufficient insulation in electric system Defective contact point of magnetic switch for compressor Defective compressor Defective remote controller or low batteries wireless Incorrect address setting of wireless remote controller 84 Service Diagnosis SiBE281013 Troubleshooting Symptom based Troubleshooting A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Is the power switch OFF or fuse for power switch blown Is there power failure YEL NO YES Is the operation switch YES pressed repeatedly NO Is the thermostat changed YES and
140. ode various settings and data can be checked 1 Setting mode 1 The initial status normal operation is Setting mode 1 This mode indicates operating status TEST test operation HWL error L N O P night time quiet operation or DEMAND demand operation 2 Setting mode 2 Each operating status can be modified 3 Monitor mode This mode indicates oil return operation outdoor unit class error causes of stepping down operation etc contents of retry contents of Using the MODE button the modes can be changed as follows Initial Press the BS1 MODE button Normal Press the BS1 MODE button for 5 seconds or more one time Setting mode 2 lt Setting mode 1 lt gt Monitor mode Push the BS1 MODE button one time C On Off Dp Blinking H1P H1P H1P 3 2 2 Setting Mode 1 In this mode the following conditions can be checked e Current operating condition normal test operation line inspection and normal error e Night time quiet operation condition normal low noise level 1 2 and e Demand operating condition normal 30 demand 40 demand 50 demand These conditions above can be checked by performing the following steps T Ie O ON 0 OFF BLINK Hu system is normally Setting mode Press the MODE BSt button once Leleljelelele je to set the system to Setting mode 1 During Setting mode 1 the lamp is always OFF Test operation display
141. odec 21 gl BRODI Oran 21 4 Inspection IMOG Sanitat 23 AA e e RU o UU EI 23 Part 5 Function and ContrOlL ccccccoccoccoccococcoooa 24 1 Function of Main Components and Thermistors annen enn 25 2 Operation FOW CA esponsor OEE 27 2 1 Cooling DY ODPSFAUON nenten rntebtenaner nestannedehectitasindausddescsiesaeeeieaed bere 27 2 2 Heating Operation onnun ers ennnersennsenv ennen ennnennennnenvennnen vennen 28 Ue oa A a e Po E EE 29 o 29 i Table of Contents SiBE281013 3 2 Outaoor UM tenen enter entente ad tido 33 Parto Field SEEING aid In 2 3 4 e E aes 50 A oree eenen eenen 50 1 2 Remote Controller Confirmation naan venen en venen ennen venen venen 50 tS TMOG WON rta 51 1 4 Precautions Regarding Test Run sean snereenerne nnen eenen neen 51 1 5 Failure Diagnosis at the Moment of First Installation 52 Field Setting from Remote Controller aan anene eneen nennen 53 2 1 Wired Remote Controller aaan eenen en eenene eenen venne ennen ennnn 53 2 2 Wireless Remote Controller un aan erven eneen een enenenvenensnenennen 56 2 3 Settings Contents and Code No for Indoor Units 57 2 4 Overview of the Field Setting on the Outdoor Units 62 25 Quiet Low Noe Opera tienen eben 63 26 Demand FUNCION retard rada do bad 65 2 7 Setting for Low Humidity Application aaneen ennen eenen erven 66 2 89 Defro
142. of moi PROGRAMMED TIME This display shows PROGRAMMED TIME of the system start or stop DISPLAY M AIR FLOW FLAP Refer to page 9 DISPLAY 2 2 2 FAN SPEED The display shows the set fan speed DISPLAY 5 TEST INSPECTION TEST OPERATION When the INSPECTION TEST OPER 7 ATION BUTTON is pressed the display shows the system mode is in Do not operate this button during nor mal use ON OFF BUTTON Press the button and the system will start Press the button again and the system will stop FAN SPEED CONTROL BUTTON Press this button to select the fan speed Low or Middle or High of your choice TEMPERATURE SETTING BUTTON Use this button for SETTING TEMPER ATURE TEMPERATURE ADJUSTMENT PROGRAMMING TIMER BUTTON Use this button for temperature setting and programming START and or STOP time Operates with the front cover of the remote controller opened Remote Controller This lights up when a signal is being transmitted This display shows the current OPER ATION MODE Wireless Remote Controller AIR FLOW DIRECTION ADJUST BUTTON Refer to page 9 OPERATION MODE SELECTOR BUTTON Press this button to select OPERATION MODE COOL ze HEAT Ay AUTO ee FAN a DRY FILTER SIGN RESET BUTTON Refer to the section of MAINTENANCE in the operation manual attached to the indoor unit INSPECTION TEST
143. ogged Visual inspection Is the outdoor unit installed under such conditions that Visual inspection short circuit easily occurs Is there clogging before or after the EV capillary Check if there is a temperature difference before and after EV capillary Check if the main valve unit of EV operates by noise vibration Is the check valve clogged Check if there is a temperature difference before and after check valve If YES the check valve is caught Is the refrigerant gas short Conduct refrigerant collection and vacuum drying and then add proper amount refrigerant Service Diagnosis 169 Troubleshooting by Remote Controller SiBE281013 elle M Check for Power Transistor Judgement according to the continuity check by using an analog tester 1 Do not touch the charged area high voltage for 10 minutes after turning the power supply off 2 If you must touch such an area make sure that the power supply voltage of power transistor is 50 V or less 3 Disconnect the connector of the outdoor unit fan motor When the outdoor unit fan is rotating against a strong wind the condenser is charged and electric shock may result Therefore disconnect the connector from the outdoor unit fan motor after confirming that the outdoor unit fan has stopped 4 Before measuring the continuity disconnect the connection between compressor and power transistor 5 Measure the continuity in the following procedure Judgement
144. on Conditions Supposed Causes Troubleshooting oor JJ All models of indoor unit Centralized controller The principal indoor unit detects the same address as that of its own on any other indoor unit The error decision is made as soon as the abnormality aforementioned is detected m Address duplication of centralized controller A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred The centralized address is duplicated Make setting change so that the centralized address will not be 160 duplicated Service Diagnosis SiBE281013 Troubleshooting by Remote Controller 4 37 Transmission Error Between Centralized Controller and Indoor Unit Remote Controller Display Applicable Models Method of Error Detection Error Decision Conditions Supposed Causes Service Diagnosis UD D o All models of indoor units Centralized controller Schedule timer Micro computer checks if transmission between indoor unit and centralized controller is normal When transmission is not carried out normally for a certain amount of time Transmission error between centralized control and indoor unit Defective PCB for central remote controller Defect of indoor unit PCB Breaking and wrong wiring of connecting wire Failure of the setting of group No and address 161 Troubleshooting by Remote Controller Troubleshooting SiBE281013 A Caution Be
145. on indicates that the air cleaning unit option is operational 7 LEAVE HOME ICON pe The leave home icon shows the status of the leave home function Leave home is enabled FLASHING OFF 8 EXTERNAL CONTROL ICON This icon indicates that another controller with higher priority is controlling or disabling your installation 9 CHANGE OVER UNDER CENTRALISED CONTROL ICON F This icon indicates that the change over of the installation is under centralised control assigned to another indoor unit or optional cool heat selector connected to the outdoor unit Main remote controller 10 DAY OF THE WEEK INDICATOR WOTE WED WFR SATIN The day of the week indicator shows the current week day or the set day when reading or programming the schedule timer 11 CLOCK DISPLAY 55 55 The clock display indicates the current time or the action time when reading or programming the schedule timer Remote Controller 11 12 Wired Remote Controller SiBE281013 12 MAXIMUM SET TEMPERATURE gg y The maximum set temperature indicates the maximum set temperature when in limit operation 13 MINIMUM SET TEMPERATURE 25 g The minimum set temperature indicates the minimum set temperature when in limit operation 14 SCHEDULE TIMER ICONO This icon indicates that the schedule timer is enabled 15 ACTION ICONS1 2345 These icons indicate the actions for each day of the schedule timer 16 OFF ICON OFF This icon indicates that
146. on terminal block X2M NO Is HAP on the outdoor unit PCB blinking YES Turn OFF the power supply and disconnect the connector of the outdoor fan motor Then turn the power ON again Is HAP on the outdoor unit PCB blinking 1 YES NO 154 The phases of connecting lines of indoor and outdoor unit do not fit each other Field factor Connect the connecting line of indoor and outdoor unit correctly Wire correctly and securely fasten the terminal screws Wire correctly Replace the outdoor fan motor Service Diagnosis SiBE281013 YES Check the resistance value of the outdoor fan motor Is the resistance value of the outdoor fan motor normal NO YES Does the fuse F6U have continuity NO YES After turning OFF the power supply correctly insert the connector of the fan motor and then restore the power YES YES Error is displayed again NO UM or LIF is displayed ES NO i Note Troubleshooting by Remote Controller Replace the outdoor fan motor Make the fuse normal e n case of a fuse can be replaced replace the fuse e In case of a fuse cannot be replaced replace PCB Replace the outdoor unit PCB A1P Replace the indoor unit PCB There is no problem with the unit An external factor noise etc other than unit failure may be the cause 1 ON for 0 2 second and OFF for 0 2 second
147. on valve opening degree lower limit degree lower limit 5 pulses Cooling for 2 minutes 5 pulses Cooling for 2 minutes Heating for 1 minute Heating for 1 minute Td gt 100 C Electronic expansion valve opening degree lower limit 10 pulses Cooling for 2 minutes Heating for 1 minute 3 2 16 Capacitor Electric Discharge Control After the operation stopped the stop caused by the remote controller an error and the compressor and outdoor unit fan motor when retry thermo is off open phase waveform is output for about one minute for electric discharge of the capacitor Afterwards electric discharge will continue due to discharge resistance until the capacitor voltage becomes 0 V At this time operation sound may be heard from the outdoor unit Function and Control 41 Function Details SiBE281013 3 2 17 Thermostat OFF due to Outdoor Air Temperature Only in Heating Operation If outdoor air temperature is high the unit conducts forced thermostat OFF at the following temperature to protect the system Outdoor air temperature gt 32 C 3 2 18 Inverter Current Protection Control Restricts compressor operation frequency to prevent compressor from tripping due to inverter overcurrent Inverter current gt Stepping down current Inverter upper limit frequency Normal operation Maximum frequency Compressor frequency 1 step 2 min The condition of Inverter current lt Stepping down current continues for 2 m
148. ontrol is reset 3 1 8 Freeze up Prevention Control The unit will perform the forced thermostat off function in following conditions Thermostat off due to freeze up prevention Based on the judgement to prevent the indoor heat exchanger from freezing the thermostat is forcedly turned OFF Indoor unit heat exchanger Freeze up prevention control temperature Reset after a continuous 10 minutes and cumulative zo timer cleared after a continuous 10 minutes Cumulative timer cleared after a continuous 20 minutes 4 C The thermostat turns OFF after a cumulative 40 4 C minutes The thermostat turns OFF after a continuous 1 minute 3 C after 8 minutes from startup 1 The thermostat turns OFF after a continuous 1 minute 50 after 8 minutes from startup 1 FHQG Only 3 1 9 Monitoring Control When the indoor unit fan is turned off while the thermo for cooling heating and drying is off even if the indoor unit temperature recovers afterwards and becomes the one that turns the thermo on the thermistor cannot detect indoor unit temperature because the suction air thermistor of indoor unit is installed inside the machine In order to prevent such a condition this monitoring control has the function of detecting indoor unit temperature by operating the fan at certain intervals when the fan is turned off while the thermo is off 3 1 10 Defrost Control When the heating operation continues at a low outdoor air temperature the frost adhered to t
149. option handbook 2 1 Wired Remote Controller 2 1 1 BRC1D528 1 When in the normal mode press the 5 Mode is entered 2 Select the desired Mode No with the button 2 3 During group control when setting by each indoor unit mode No 20 22 and 23 have been selected press the OS button 3 and select the Indoor Unit No to be set This operation is unnecessary when setting by group 4 Press the a upper button 4 and select First Code No 5 Press the noe lower button 5 and select the Second Code No 6 Press the as button 6 once and the present settings are Set 7 Press the button 7 to return to the Normal Mode Example If during group setting and the time to clean air filter is set to Filter Contamination Heavy Set Mode No to 10 First Code No to 0 and Second Code No to 02 Field Setting 53 Field Setting from Remote Controller 2 1 2 BRC1E51A7 lt Basic screen gt Cool Set temperature Cl 28 on C AD U lt Field setting menu screen gt Field setting Test operation ON OFF Register Service Contract Field setting list Group Ne setting Indoor unit Airnet Mo set Outdoor unit Airnet Mo set return Setting Press Menu Enter button lt Field setting screen gt In the case of individual setting per indoor unit Field setting list Unit Ne 0 o 1 01 des Ea oo en a return Setti
150. or between Indoor and Outdoor Unit Remote Controller Display Applicable Models Method of Error Detection Error Decision Conditions Supposed Causes Service Diagnosis gt DN 1 gt RZQG The error is generated when the micro processor detects that the transmission between the indoor and the outdoor unit is not normal over a certain amount of time When the transmission is not carried out normally over a certain amount of time Wiring indoor outdoor transmission wire is incorrect Defective indoor unit PCB Defective outdoor unit PCB Burning out fuse Defective outdoor fan motor External factor Noise etc Defective power supply Disconnection of optional equipments 153 Troubleshooting by Remote Controller Troubleshooting SiBE281013 A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Is the power supply voltage between 180 and 220 VAC NO YES Continue the condition that the blinking interval of HAP on outdoor unit PCB is short 1 for more than one minute YES NO there miswiring a wrong wire type loose terminal or contact failure in the inter unit wiring between the indoor and outdoor units NO YES Is any optional accessory 2 connected YES NO Is the power for the optional accessory supplied from between 1 and 2
151. or disconnect connector or parts damage may be occurred Are the remote controllers connected to several indoor units the remote controller wiring jumped between indoor units NO Is the field setting for pair system correct NO YES Do the micro computer normal monitors HAP on all indoor unit PCB blink NO YES Turn OFF the power supply once and turn the power ON to restart NO YES Service Diagnosis YES YES Are the wires between indoor outdoor correctly connected NO YES Is the power supply for the option device connected from 1 and 2 of X2M NO YES Is the power supply PCB correctly connected NO YES Is 220 VAC between 1 and 2 of X2M YES NO Are the wires between indoor outdoor correctly connected NO YES Adopt only one of the remote controllers Remove the jumper Group control in the same system is not allowed Set correctly Connect correctly Connect correctly Connect correctly Check the power supply system inside the indoor unit Could be wrong wiring Check again Connect correctly Replace the indoor unit PCB Normal 159 Troubleshooting by Remote Controller SiBE281013 4 36 ui Address Duplication of Centralized Controller Remote Controller Display Applicable Models Method of Error Detection Error Decisi
152. ount of refrigerant Service Diagnosis SiBE281013 Symptom based Troubleshooting 2 10 Equipment Discharges Dust Applicable Model All models of SkyAir series Supposed m Carpet Causes B Animal hair m Application cloth shop Troubleshooting A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred trouble generate at the time of operation start again after extended period of operation YES Dust collected inside the indoor unit are blown out Cleaning for inside of indoor unit is necessary NO Is the air filter equipped XES Dust collected inside the indoor unit are blown out dd Cleaning for inside of indoor unit is necessary Install the air filter Service Diagnosis 97 Symptom based Troubleshooting SiBE281013 2 11 Remote Controller LCD Displays s2 Applicable Model All models of SkyAir series Supposed Causes Troubleshooting A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Trouble generates just after power supply ON YES The unit is checking to confirm that remote controller is normal NO Indication appears for short time position of SS 1 on indoor YES unit PCB at Emergency Turn the switch to Normal and reset power supply NO Check the unit based on troubleshooting of indoor unit LED and outdoor unit LED
153. pansion valve fully opens 1 If you become unsure how many times you have pushed the button push the MODE BS1 button once to return to Setting mode 1 and start the operating procedure all over again Field Setting SiBE281013 3 2 4 Monitor Mode Field Setting from Outdoor Unit PCB In this mode the following items can be checked by using the BS buttons To enter the monitor mode press the MODE BS1 button when in Setting mode 1 lt Selection of setting item gt Press the SET BS2 button and set the LED display to a setting item lt Confirmation on setting contents gt Press the RETURN BS3 button to display different data of set items Press the RETURN BS3 button and switches to the initial status of Monitor mode Press the MODE BS1 button and returns to Setting mode 1 Field Setting Setting item Indication of oil return See Data display 1 Data displ operation AAA Indication of outdoor See Data displ unit class ae Contents of retry 2 the latest Contents of retry 3 1 cycle before Data 4 cyber o o o o o soir Contents of malfunction code display on the 9 the latest next page Contents of malfunction 1 cycle before Contents of malfunction 7 2 cycle before Indication of causes of stepping down operan 0 e elolelole See Data display 3 The numbers in the No column represent the number of time
154. ping Drain piping Outdoor unit Earth Guide Lines for Optimal Operation Condition The operation value guide lines when operating under standard conditions by pushing the test operation button on the remote controller are as given in the table below Indoor unit fan H tap High Low Discharge Suction Indoor Unit Outdoor Unit Pressure Pressure Pipe Temperature Temperature Temperature Temperature Differential Differential between Suction between Suction Air and Air and Discharge Air Discharge Air Cooling 2 62 MPa 0 60 MPa 60 C 100 C 2 C 10 C 8 C 18 C 7 G i2 C 3 39 MPa 0 98 MPa Heating 2 53 MPa 0 53 MPa 60 C 100 C 6 C 2 C 14 C 30 C 2 C 6 C 3 27 MPa 0 75 MPa Standard Conditions ee indoor Cooling Operation 27 CDB 19 CWB 35 CDB Heating Operation 20 CDB 7 CDB 6 CWB During or after maintenance when the power supply is turned back on operation restarts automatically by the auto restart function Please exercise the proper caution Service Diagnosis 81 Maintenance Inspection SiBE281013 Correlation of Air Conditioner s Operation Status and Pressure Running Current What happens in comparison to normal values is summarized in the table below Measured for 15 20 minutes or more after operation starts Cooling Air Conditioner Status High Pressure Running Current Air Outdoor Uni Fin Fouling Air Unsatisfactory Compression Heating Air Conditio
155. ponents of the outdoor unit Be sure to discharge the capacitor completely before conducting repair work A charged capacitor may cause an electrical shock Do not start or stop the air conditioner operation by plugging or unplugging the power cable plug Plugging or unplugging the power cable plug to operate the equipment may cause an electrical shock or fire Introduction SiBE281013 Be sure to wear a safety helmet gloves and a safety belt when working at a high place more than 2 m Insufficient safety measures may cause a fall accident In case of R 410A refrigerant models be sure to use pipes flare nuts and tools for the exclusive use of the R 410A refrigerant The use of materials for R 22 refrigerant models may cause a serious accident such as a damage of refrigerant cycle as well as an equipment failure Do not repair the electrical components with wet hands Working on the equipment with wet hands may cause an electrical shock Do not clean the air conditioner by splashing water Washing the unit with water may cause an electrical shock Be sure to provide the grounding when repairing the equipment in a humid or wet place to avoid electrical shocks Be sure to turn off the power switch and unplug the power cable when cleaning the equipment The internal fan rotates at a high speed and cause injury Be sure to conduct repair work with appropriate tools The use of inappropriate tools may cause injury Be sur
156. r Air Temperature Under the condition of heating overload control the outdoor unit fan in order to secure the difference of elevation pressure and the pressure ratio of the compressor Normal e Hp Lp gt 0 69 MPa al al Hp lt 3 24 MPa OR OR e Outdoor unit fan 8 step e Hp lt 2 75 MPa O Hp Lp lt 0 39 MPa e Hp gt 3 43 MPa amp Outdoor unit fan 1 step 30 sec Hp Lp gt 0 59 MPa Lp lt 0 12 MPa e Hp lt 3 33 MPa Outdoor unit fan 1 step 30 sec Function and Control 39 Function Details SiBE281013 3 2 14 Suction Pipe Superheat Protection Control Only in Heating 40 Operation In case the suction superheat value in heating mode is too high the oil return to the compressor will be insufficient In order to avoid that the compressor oil will be accumulated in the outdoor unit heat exchanger the upper limit frequency will be controlled SH Superheat degree EV Electronic expansion valve Normal operation e Suction SH gt 12 C OR af Suction SH gt 10 C e EV opening degree 480 pls l Suction SH lt 4 C e amp Upper limit frequency Maximum frequency or Suction SH lt 8 C e Suction SH lt 10 C e EV opening degree lt 450 pls e Suction SH lt 4 C eS e Suction SH lt 8 C OR Suction SH lt 10 C e EV opening degree lt 450 pls Raising upper limit frequency for 1 step every 20 seconds Loweri
157. r is displayed again replace the inverter PCB A1P Service Diagnosis SiBE281013 Troubleshooting by Remote Controller 4 14 Actuation of Pressure Sensor Remote Controller Display Applicable Models Method of Error Detection Error Decision Conditions Supposed Causes Service Diagnosis gt an nn la RZQG In cooling Detect error by the indoor unit intermediate thermistor R3T In heating Detect error by the intermediate heat exchanger thermistor R5T In cooling When the detection pressure is the following value 0 12MPa or less continues for 5 minutes When the saturated pressure equivalent temperature is 34 C The stop valve is not opened Disconnection of outdoor unit intermediate thermistor Disconnection of indoor unit intermediate thermistor Defective thermistor Defective outdoor unit PCB A1P Abnormal drop of low pressure 123 Troubleshooting by Remote Controller Troubleshooting SiBE281013 A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Is the stop valve open YES NO In heating operation Is it in cooling operation YES In cooling operation exchanger intermediate thermistor connector X12A properly connected to the outdoor unit PCB NO Is the indoor unit intermediate thermistor properly connected to the indoor unit PCB
158. rain pump is turned on a ON rain pump ee OFF 1 5 min Y 5 sec Float switch en OFF 3 1 6 Control when the Operation Mode is Set to Auto Setting the operation mode to Auto with the remote controller the unit is controlled regarding the contents shown below Suction air temperature Set by remote controller C 6 5 4 3 0 1 2 3 4 5 6 Thermo ON PPE Thermo OFF Display switch En I Heating Cooling Thermo ON H Suction air temperature Set temperature by remote controller C Auto cooling Auto heating 3 1 7 Dew Condensation Prevention Control m FCQG When indoor unit humidity is high during the operation the moving range of louvers is limited P4 PA Dr Position of louvers AIR when viewed from horizontal direction m FHQG In cooling and dry operation the following control is carried out in order to prevent dew condensation when the horizontal blade blows air downward Starting condition e Horizontal blade is set to downward flow P3 or P4 e Cooling operation compressor operation continues for 30 minutes al Function and Control 31 Function Details SiBE281013 Dew condensation prevention control Dry operation with horizontal airflow is carried out for 1 hour P2 0 i Note 1 When there is any change to heating fan modes airflow direction and operation ON OFF state during dew condensation prevention control this c
159. rate positioning It is normal There is a control function that moves the flap when operation mode is changed 13 Flap operates when power is turned on 14 Change of operation mode causes flap to move hb ESE EE ink EDEN 9 Fan operates in M tap during heating even if It is normal It is caused by the activation of the remote controller is set to L tap overload control airflow shift control 16 Flap automatically moves during cooling It is normal It is caused by the activation of the dew condensation prevention function or ceiling soiling prevention function 17 Indoor unit fan operates in L tap for 1 minute in It is normal The monitoring function forcibly program dry mode even if compressor is not operates the fan for 1 minute operating 18 Indoor unit fan operates after heating operation It is normal The fan operates in the LL tap for stops 60 to 100 seconds to dissipate the residual heat in the heater 19 Drain pump operates when equipment is not Itis normal The drain pump continues to operate operating for several minutes after equipment is turned off 20 Horizontal swing sends air to different directions It is normal The airflow direction in cooling dry in cooling and heating even if itis set to the same operation is different from that in heating fan position operation 21 Flap remains horizontal even if it is set to swing It is normal The flap does
160. re set by remote controller Cooling AT Temperature set by remote controller indoor suction air temperature Heating Thermostat ON Condition AT gt 0 5 C Thermostat OFF Condition e AT lt 0 5 C continues for 1 minute for RZQG71LV1B e AT lt 0 5 C continues for 1 minute al e 5 minutes or more after start up for RZQG100 140LV1B e AT lt 2 C Cooling e AT lt 2 5 C Heating When changed suddenly from AT gt 1 5 C to AT gt 0 5 C or Function and Control 35 Function Details SiBE281013 3 2 7 Compressor Step Cooling Heating 36 The compressor operation frequency is controlled in order to keep a constant evaporation temperature in cooling and a constant condensing temperature in heating At cool Remote controller set temperature Indoor return air temperature Depending on At cool and the cooling load the target evaporating temperature will be a value between 2 C and 20 C At heat Indoor return air temperature Remote controller set temperature Depending on At heat and the heating load the target condensing temperature will be a value between 42 C and 54 C for RZQG100 140LV1B 42 C and 50 C Compressor operation frequency AZOGIOOLVIB NO NININ IN IN N N N N N CO CO YJ OD OI WIN O ECN A E 12 MEC a ME IES MEN MES 26 27 28 20 Maximum frequency in cooling Function and Control SiBE281013 Functio
161. roper NO YES i Note YES The phase of inter unit wiring between the indoor and outdoor units is incorrect The phase of inter unit wiring between the indoor and outdoor units is incorrect Correctly connect inter unit wiring between the indoor and outdoor units Correctly connect inter unit wiring between the indoor and outdoor units Match the connection of the inter unit wiring and piping between the indoor and outdoor units Recharge a proper amount of refrigerant after refrigerant recovery and vacuum drying Check the refrigerant piping system for clogging 1 ON for 0 2 second and OFF for 0 2 second Blink about 25 times for 10 seconds Normally ON for 0 4 second and OFF for 0 4 second Blink about 12 times for 10 seconds Refer to P 175 30 Refer to P 176 164 Service Diagnosis SiBE281013 Troubleshooting by Remote Controller 4 39 Check Check the Thermistors Thermistors If the cause of the problem is related to the thermistors then the thermistors should be checked prior to changing the PCB For more information about these thermistors see m Wiring Diagrams on P 180 m Functions of Main Components and Thermistors on P 25 Overview of Thermistors The table below contains an overview of the thermistors Indoor FCQG FHOG Suction air thermistor Heat exchanger thermistor Intermediate heat exchanger thermistor Outdoor Checking To check the ther
162. s are mounted and connected properly and if the connections at the soldered or crimped terminals are secure Improper installation and connections may cause excessive heat generation fire or an electrical shock If the installation platform or frame has corroded replace it Corroded installation platform or frame may cause the unit to fall resulting in injury Check the grounding and repair it if the equipment is not properly grounded Improper grounding may cause an electrical shock SiBE281013 Introduction Be sure to measure the insulation resistance after the repair and make sure that the resistance is 1 MQ or higher Faulty insulation may cause an electrical shock Be sure to check the drainage of the indoor unit after the repair Faulty drainage may cause the water to enter the room and wet the furniture and floor Do not tilt the unit when removing it The water inside the unit may spill and wet the furniture and floor Be sure to install the packing and seal on the installation frame properly For unitary type If the packing and seal are not installed properly water may enter the room and only 1 2 Used Icons wet the furniture and floor Icons are used to attract the attention of the reader to specific information The meaning of each icon is described in the table below Icon Type of Description Information Note A note provides information that is not indispensable but may nevertheless be valuable to th
163. s of fan during heating can be changed Make the setting according to installation environment Second Code No Mode No First Code No ie rr a Field Setting 59 Field Setting from Remote Controller SiBE281013 Automatic Operation Mode Control When selecting Automatic Operation Mode with the remote controller conducts the most comfortable operation in which you do not feel too cool or too hot e Outdoor air temperature e Indoor air temperature DD e Temperature set by remote controller Calculates and controls the optimum indoor temperature Automatic Restart after Power Failure Reset For the air conditioners with no setting for the function the units will be left in the stop condition when the power supply is reset automatically after power failure reset or the main power supply is turned on again after once turned off However for the air conditioners with the setting same as factory setting the units may start automatically after power failure reset or the main power supply turned on again return to the same operation condition as that of before power failure For the above reasons when the unit is set enabling to utilize Auto restart function after power failure reset utmost care should be paid for the occurrence of the following situation The air conditioner starts operation suddenly after power failure reset or the main power supply turned on again Consequently the user might be surprised with que
164. s to press the SET BS2 button Data display 1 isplay contents In normal operation oje e ejerce re Data display 2 a isplay contents e e ejo No No setting A Oooo AZOGIOOLVIB jole ejojejeje RZQGI25LVIB o ejejoejejo AZOGI40LVIB jojejejojejoje Data display 3 Display contents Normal not in stepping BE operation Low pressure stepping down ole o o oio o High pressure stepping down olelelele oo Inverter discharge pipe stepping down nee current stepping down lil fin temperature stepping down Inverter stepping down olele el olojo Overall current stepping down Other stepping down olele o o olo 75 Field Setting from Outdoor Unit PCB SiBE281013 3 2 5 List of Contents of Retry and Error Take the following steps to check contents of retry and error To enter Monitor mode press the IMODE BS1 lt Display of RETURN 2 gt button when in Setting mode 1 When SET BS2 button is pressed the LED display for RETURN 2 turns ON lt Selection of retry or error item gt lt Display of RETURN 3 gt P the SET BS2 button t t the LED ress the SET BS2 button to set the When SET BS2 button is pressed the LED isplay to ret item display to retry or error item display for RETURN 3 turns ON lt Display of RETURN 1 gt Press the RETURN BS3 button to return the system to the initial state of Monitor mode When the RETURN BS3 button is pressed t
165. s to indication the previously generated error until the power supply is turned OFF Be sure to turn OFF the power supply after inspection Service Diagnosis 101 Troubleshooting by Remote Controller SiBE281013 4 Troubleshooting by Remote Controller 4 1 Procedure of Self diagnosis by Remote Controller 4 1 1 Wired Remote Controller BRC1D528 If operation stops due to error the remote controller s operation LED blinks and error code is displayed Even if stop operation is carried out error contents are displayed when the inspection mode is entered The error code enables you to tell what kind of error caused operation to stop Refer to P 106 for error code and error contents Operation LED ON OFF button Display of indoor unit for which an error has been detected Inspection display Error code Inspection Test button Note 1 Pressing the INSPECTION TEST button will blink the check indication 2 While in service mode holding down the ON OFF button for a period of 5 seconds or more will clear the failure history indication shown above In this case on the codes display the error code will blink twice and then change to 00 Normal the Unit No will change to 0 and the operation mode will automatically switch from service mode to normal mode displaying the set temperature 102 Service Diagnosis SiBE281013 Troubleshooting by Remote Controller 4 1 2 Wired Remote Controller BRC1E51A
166. ssion Error between Indoor Unit PCB and Adaptor PCB 113 4 9 Thermistor Abnormality aaneen ee eneerenenenen ennen eneneenenenn 115 4 10 Humidity Sensor System Abnormality annae oneens eneeen 116 4 11 Remote Controller Thermistor Abnormality annen eneen 117 4 12 Outdoor Unit PCB Abnormality aaneen eenen ene eenenenens 118 4 13 High Pressure Abnormality Detected by the High Pressure Switch 119 4 14 Actuation of Pressure SensOr nnn aans ennene senen en eenenvensne eneen venen vens 123 4 15 GOMpressor MOF HOCK zeester eee octets 125 4 16 Outdoor Unit Fan Motor Abnormality annen eneen en eeen 126 4 17 Electronic Expansion Valve Abnormality anneer enneen 128 4 18 Discharge Pipe Temperature Control aanne ene ennn eneen 131 4 19 High Pressure Switch System Abnormality aaan eneen 133 4 20 Thermistor System Abnormality annen eneen enenen eneen 134 4 21 Outdoor Unit PCB Abnormality aaneen eenenen ene ennenenens 135 4 22 Radiation Fin Temperature Rise ccccccsecceeeeeeeeeeeeeeeseeeseeeaeeseeeses 137 4 23 Output Overcurrent Detection nnn ai 139 4 24 Electronic Thermal Time Lag aaneen eren ennen enen en venrnenenenn 141 4 25 Stall Prevention Time Lag nennen eenen venen eenen venen vennnvenn 143 79 80 SiBE281013 4 26 Transmission System Abnormality between Control and Inverter PCB ccccceseeeeeeeseeeeeeeeeeeseeeeseaeees 145 4 27 Open Phase or Power Supp
167. st Start Selina cds 70 Field Setting from Outdoor Unit PCB aaneen een eenen ene nenn 71 3 1 Location of DIP Switch and BS Button an uann en rennn ereen 71 3 2 Field Setting for Outdoor Unit nennen eenn enre nen eneen 72 Emergency Operation usd Rad 77 Aal Forced Operation a hik 77 Part 7 Service Diagnosis nnnssnnnsnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnsnsnnnsnnnnnnn 19D Table of Contents 1 2 Maintenance Inspection annae enen eennn enen enrenerenerenernenenenend 81 IES 81 Symptom based Troubleshooting nnn annen enn ennen enen ensen enenens 83 2 COVE A eh ee nee een eee ere 83 2 2 Equipment does not Operate on anenen ennn en venen renners ennen vens 84 2 3 Indoor Unit Fan Operates but Compressor does not Operate 86 2 4 Cooling Heating Operation Starts but Stops Immediately 88 2 5 After Unit Shuts Down It cannot be Restarted for a While 89 2 6 Equipment Operates but does not Provide Cooling 91 2 7 Equipment Operates but does not Provide Heating 93 2 8 Equipment Discharges White Mist annen eneen 95 2 9 Equipment Produces Loud Noise or Vibration ees 96 2 10 Equipment Discharges Dust aanne ennen neenen venen ennrnnnrvnn 97 2 11 Remote Controller LCD Displays G8 aaneen enn ennneneennnenvennen 98 2 12 Swing Flap does not Operate nanne oann enen envennnsenneennseenvennnen 99 Troubleshooting by LED Indications us
168. stallation is performed by the cooling operation Until the test run is complete the heating operation cannot be performed Even when the heating operation is performed by pressing the test run button of the indoor unit remote controller Test run mode cannot be entered The heating operation is performed with forced thermo ON e Cooling Cooling operation in Normal cooling amp First operation 3 gt Test operation mode operation after installation for 3 minutes e Cooling Cooling operation in Cooling operation in amp Test operation Test operation mode forced thermostat ON button ON for 3 minutes e Heating Heating operation can amp First operation not be done after installation e Heating Heating operation in amp Test operation forced thermostat ON button ON e Inthe Test run mode errors will be determined all at once in order to detect problems of field setting conditions such as a case that the opening of stop valve has been forgotten e During the test run if the error code shown below is displayed take measures according to the instructions 1 When the error code E3 E4 or L8 is displayed on the remote controller there is possibility that either the stop valve is closed or the airflow outlet is obstructed 2 When the error code U2 is displayed on the remote controller check for voltage imbalance 3 When the error code U4 or UF is displayed on the remote controller
169. stion for the reason why In the service work for example turning off the main power switch during the unit is in operation and turning on the switch again after the work is completed start the unit operation the fan rotates Setting of Normal Airflow Make the following setting according to the ceiling height The setting position No is set to O1 at the factory E FCQG71 Second code No Gsling height r 01 lt 2 m FCQG100 140 mE FHOG71 First code No Second code No Ceiling height m 13 23 27 35 m FHQG100 140 Second code No Celing height m 13 23 58 43 60 Field Setting SiBE281013 Field Setting from Remote Controller Airflow Direction Setting Set the air flow direction of indoor units as below Set when optional air outlet blocking pad has been installed Mode No First Code No Second Code No Setting F 4 direction air flow 13 23 T 3 direction air flow Airflow Range Setting Make the following air flow direction i according to the respective purpose ie an Second Eme Draft prevention Upward Draft prevention Upward Dew condensation 3 23 Standard prevention Upward Same soiling o Some indoor unit models are not equipped aa draft EiS upward function Individual Setting of Ventilation This is set to perform individual operation of heat reclaim ventilation using the remote controller central unit when heat reclaim ventilation is built in
170. t system Conduct refrigerant collection and vacuum drying and then add proper amount refrigerant Is the refrigerant overcharged Conduct refrigerant collection and vacuum drying and then add proper amount refrigerant 168 Service Diagnosis SiBE281013 Troubleshooting by Remote Controller ele EMB Evaluation of Abnormal Low Pressure Abnormally low pressure level is mostly caused by the evaporator side The following contents are provided based on field checking of service engineer Further the number is listed in the order of degree of influence In Cooling Operation Check items Possible causes Judgement Does the outdoor unit fan run normally Visual inspection Is the indoor unit filter clogged Visual inspection Is there clogging before or after the EV capillary Check if there is a temperature difference before and after EV capillary Check if the main valve unit of EV operates by noise vibration Is the check valve clogged Check if there is a temperature difference before and after check valve If YES the check valve is caught Is the indoor unit installed under such conditions that Visual inspection short circuit easily occurs Is the refrigerant gas short Conduct refrigerant collection and vacuum drying and then add proper amount refrigerant In Heating Operation Check items Possible causes Judgement Does the outdoor unit fan run normally Visual inspection Is the outdoor unit heat exchanger cl
171. tarts If you cancel the capacity priority setting when the low noise setting remains the low noise setting is prioritized and even if air conditioning load becomes high the noise operation continues 3 2 11 Low Pressure Protection Control In order to prevent abnormal low pressures in the system the below control function will be activated Cooling Heating Normal operation Normal operation e Lp gt 0 15 MPa continues e OR Within 10 minutes after for 1 minute defrosting a a ae 8 e From the starting to within 5 minutes after the startup control stops Compressor upper limit frequency e Lp lt 0 12 MPa RZQG71LV1B 57 Hz 7 RZQG100 140LV1B 30 Hz Compressor upper limit frequency Condition E 20 steps Lp lt 0 12 MPa e Lp lt 0 12 MPa continues for 10 seconds e Lp gt 0 15 MPa continues for 10 seconds elapsed Compressor upper limit frequency Condition E 10 steps e Lp lt 0 12 MPa continues for 1 minute Lp gt 0 15 MPa Compressor upper limit frequency Condition E RZQG71LV1B 57 Hz e Lp lt 0 12 MPa continues RZQG100 140LV1B 30 Hz 10 times or less for 5 minutes stopping in 200 minutes Compressor stop 0 Hz Stopped 11 times in 200 minutes e 10 minutes elapsed after Abnormal stop E4 indication e 5 minutes after starting e defrosting Condition E OR e Lp gt 0 15 MPa continues for 1 minute 38 Function and Control
172. tat control control Standby Abnormal op judgement Thermostat OFF by freeze up operation OFF judgement judgement I protection judgement Oil recovery operation Oil recovery Restart standby a operation ending judgement A Function and Control 27 28 Operation Flow Chart SiBE281013 a a 2 2 Heating Operation Power supply ON Initialize electronic expansion valve Initialize micro computer A Preheating operation control Remote controller ON operation judgement Cooling Dry Operation mode Emergency judgement Heating Emergency y operation Cooling Dry Heating y Thermostat ON judgement v Starting control four way valve changeover Hot start control i B Normal control Compressor step control Suction pipe superheat protection control Electronic expansion valve PI control Discharge pipe temperature protection control Low pressure protection control Inverter current protection control High pressure protection control Overall current protection control Heating overload control Simulated operation Defrosting Thermostat OFF judgement Remote nn condition Room thermostat control control Standby sto Four way valve Thermostat OFF by outdoor operation OFF judgement iud ent changeo
173. tdoor air thermistor system abnormality 134 Discharge pipe thermistor system abnormality 134 High pressure switch system abnormality Heat exchanger thermistor system abnormality xl k A A gt J Q O O O O or gt gt O 00 O AN oO 106 Service Diagnosis SiBE281013 Troubleshooting by Remote Controller 4 3 Safety Devices 4 3 1 Outdoor Unit High pressure switch open Jee RZQG71L 4 0 MPa 0 0 15 3 0 MPa 0 15 6 3A 250V F1U 3 15A 250V F6U RZQG100L 6 3A 250V F1U F2U F3U RZQG125L 5A 250V F6U RZQG160L 4 3 2 Indoor Unit Thermal protector 3 15A 250V F1U Service Diagnosis 107 SiBE281013 Troubleshooting by Remote Controller 4 4 Indoor Unit PCB Abnormality Remote Controller Display Applicable Models Method of Error Detection Error Decision Conditions Supposed Causes Troubleshooting All models of indoor unit Check data from E PROM The error is generated when the data from the E PROM is not received correctly EPROM Electrically Erasable Programmable Read Only Memory A memory chip that holds its content without power It can be erased either within the computer or externally and usually requires more voltage for erasure than the common 5 volts used in logic circuits It functions like non volatile RAM but writing to E PROM is slower than writing to RAM m Defective indoor unit PCB m External factor No
174. tection inverter Error Decision When the aforementioned voltage waveform becomes identical with the waveform of the power Conditions supply open phase Supposed m Open phase Causes m Voltage imbalance between phases m Defective outdoor unit PCB e Defective main circuit capacitor e Power unit Disconnection in diode module e Defective magnetic relay K1R K10R e Improper main circuit wiring Troubleshooting A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Measure the power supply voltage between 3 phases R S S T T R YES Is the voltage YES rated 10 Field factors NO Is the voltage imbalance between phases less than 10 ue Field factors YES Replace the outdoor unit inverter PCB 146 Service Diagnosis SiBE281013 Troubleshooting by Remote Controller 4 28 Defective Capacity Setting Remote Controller Display Applicable Models Method of Error Detection Error Decision Gn me Il gt RZQG Check whether set value written in E7PROM at factory or set value of capacity setting adaptor for spare is the same as outdoor unit capacity When the set value on E PROM differs from the outdoor unit capacity or a capacity setting Conditions adaptor except for PCB applicable models is installed Error decision is made only when turning the power supply ON Supposed B Improper set value of E PROM
175. ter button Setting details are determined and field setting list screen returns MaS No 8 In the case of multiple setting HRe turn Setting 7 changes repeat 3 to 7 9 After all setting changes are completed press Cancel button twice Press Menu Enter button 10 Backlight goes out and Connection m under check Please wait for a ea moment is displayed for initialization l After the initialization the basic screen Setting confirmation SOUS A CAUTION e When an optional accessory is installed on the indoor unit settings of the indoor unit may be changed See the manual of the optional accessory O For field setting details of the outdoor unit see installation manual attached to the outdoor unit Field Setting 55 Field Setting from Remote Controller SiBE281013 2 2 Wireless Remote Controller DON OFF AO UP button DOWN button Mode No Field setting mode RESERVE CANCEL RESERVE button First code No WD m 4 1 Z O 5 l TIMER MODE MODE button Se A SWING Second code No INSPECTION TEST button Setting To set the field settings you have to change m Mode No m First code No m Second code No To change the field settings proceed as follows Hold down the INSPECTION TEST button for at least 4 s during normal mode to enter the Field setting mode Press the MODE button to s
176. the deficiency in performance has been caused by the shortage of refrigerant the abnormal stop is activated with the error code ss being displayed on the remote controller 3 2 23 Piping and Wiring Incompatibility Detection Control When the connecting pipe and the transmission connecting line are connected each to a differing outdoor unit the abnormal stop is activated with the error code ti being displayed on the remote controller 3 2 24 Pump Down Residual Operation Only for RZQG100 140LV1B Conducts pump down residual operation when compressor stops to collect refrigerant in evaporator for preventing liquid refrigerant from remaining in the evaporator Contents of Control Compressor 70 Hz Electronic expansion valve 0 pls Ending Condition 30 seconds elapsed with residual operation SE eLp lt 0 2 MPa 44 Function and Control SiBE281013 Function Details 3 2 25 Oil Recovery Operation When the compressor runs at low frequency for a long time the failure of recovering oil may cause the shortage of oil level Therefore the oil recovery operation is performed by increasing the compressor operation frequency for five minutes The more the unit operates at low frequency the higher the frequency of oil recovery operation becomes 3 2 26 Defrost Operation When in heating mode a defrost operation will be conducted in order to avoid ice formation on the outdoor unit heat exchanger Starting Conditions Defrost
177. tion Error Decision Conditions Supposed Causes Service Diagnosis LJ FCQG Check the condition of transmission between indoor unit PCB A1P and adaptor PCB A2P using micro computer When normal transmission is not conducted for certain duration 15 seconds or more After 60 seconds error is display on the remote controller Connection defect of the connector indoor unit PCB A1P and adaptor PCB A2P Defective indoor unit PCB A1P Defective adaptor PCB A2P External factor Noise etc 113 Troubleshooting by Remote Controller Troubleshooting SiBE281013 A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Is the connection of connector X70A on indoor unit PCB A1P normal Is the connection of connector X7A on adaptor PCB A2P normal NO YES Is the connector X8A on adaptor PCB A2P not short circuited YES NO Is the harness disconnected YES NO Is there an external factor noise etc except for a fault YES Turn OFF the power supply and turn the power ON Press the power switch on the remote controller Error is displayed again NO YES 114 Connect the connector accurately Connect the connector accurately Short circuit X8A Replace the harness Eliminate the external factor Normal operation Check the panel PCB and indoor unit
178. tivated by 1 Automatic control By field setting from remote controller 2 External activation from optional PCB KRP58M 2 5 1 Quiet Low Noise Operation by Automatic Control Table Silent operation can be set by field setting from the wired remote controller Description Mode First Second Code No No Cod No Silent Lownoise Lownoise Operation activation capacity priority Low noise 1 22h00 22h00 20h00 start amp 06h00 08h00 08h00 stop time Method When setting mode 16 26 0 02 quiet low noise operation will be carried out by presuming the current time in accordance with the outside temperature Automatic mode will start when the outdoor temperature is average max of last 10 days 5 C and will be conducted for 10 hours The maximum outdoor temperature is supposed to occur at 14 00h As the time judgement is made in accordance with the outdoor temperature the above mentioned timing is an estimation only Capacity Priority When setting mode 16 26 0 04 the low noise operation will be stopped when the heating or Setting cooling load increases In that case the operation will return to normal operation The unit will return to low noise operation when the heating or cooling load decreases again Graph Maximum Start night End night ambient 8 hours quiet 10 hours quiet temperature RP operation operation pe gt a iia Trend line indicating fluctuation of outdoor ambient temperature in 24 o hours a en
179. uction temperature while the heating thermo is off excluding the timing when the remote controller is off the outdoor unit fan is turned on and off at certain intervals Starting condition Outdoor air temperature gt 25 C Ending condition Outdoor air temperature lt 20 C ON S Outdoor unit fan oe n a i 6min 6 min 6 min 6 min 3 2 5 Starting Control When compressor start up the starting frequency is fixed for specified period of time at low frequency to prevent returning of refrigerant Pressure Pressure Starting equalizing equalizing control start complete complete Pressure equalizing control before i compressor start l Starting control sr E E 60 sec i Comoe se e RZQG71LV1B 118 5 Hz RZQG100 140LV1B 72 pls l 104 Hz i Electronic expansion Electronic CN Wale control when startup expansion valve 40 sec 8 Step ON Cooling Outdoor unit fan control Outdoor unit fan when start up OFF Heating L Cooling et fan speed Cooling Heating Indoor unit fan SS l Thermostat OFF Heating OFF 10 120 sec Remote controller OFF 34 Function and Control SiBE281013 Function Details 3 2 6 Room Thermostat Control Based on the difference between the set temperature by remote controller and indoor unit suction air temperature the thermo is turned on and off AT Indoor suction air temperature temperatu
180. ulation on the indoor coil or water blowing out from the indoor unit Function details Factory setting Low humidity application Low humidity application setting freeze up operation prevention Field Setting 16 26 2 01 16 26 2 03 16 26 2 04 Compressor control B The compressor frequency is controlled in function of the target evaporating temperature B The target evaporating temperature is controlled in function of the cooling load Minimum target Te 2 C Minimum target Te 0 C Initial minimum target Te 2 C but can be changed in function of actual Te to avoid freeze up activation Te lt 1 C for 20 minutes accumulated gt Change target Te gt 5 C Te lt 1 C for 30 minutes accumulated gt Change target Te gt 8 C See graph 1 See graph 2 See graph 3 Freeze protection Start Te lt 1 C for 40 minutes Te lt 1 C for 40 minutes Te lt 1 C for 40 minutes function accumulated accumulated accumulated OR OR Te lt A C for 1 minute Te lt 3 C for 1 minute Te lt A C for 1 minute continuous continuous continuous Indoor decision Outdoor decision Outdoor decision End Te gt 7 C for 10 minutes Te gt 7 C for 3 minutes Te gt 7 C for 3 minutes continuously continuously continuously Indoor decision OR OR Te gt 4 C for 20 minutes Te gt 4 C for 20 minutes continuously continuously Outdoor decision Outdoor decision Parameters 66 Field Setting SiBE281013 Field
181. unit PCB Defective outdoor inverter unit PCB Troubleshooting A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred In cooling characteristics of the N E outdoor unit intermediate 9 Replace the outdoor unit thermistor normal intermediate heat exchanger thermistor YES The outdoor unit heat YES E exchanger is clogged or Clean or remove the clocking blocked item NO outdoor unit fan is NO Remove the foreign matter rotating during operation Replace the fan motor Service Diagnosis 119 Troubleshooting by Remote Controller Are the operation of electronic expansion valve normal NO YES High pressure is too high YES NO In heating characteristics of the indoor unit intermediate thermistor normal NO YES The indoor unit fan is rotating during operation NO YES Are the operation of electronic expansion valve normal NO YES High pressure is too high NO YES 101 41 Refer to P 168 ele Refer to P 174 120 SiBE281013 Troubleshooting 5 Replace the outdoor unit PCB A2P If error is displayed again replace the inverter PCB A1P Replace the indoor unit intermediate heat exchanger thermistor Remove the foreign matter Replace the fan motor 102 ou Troubleshooting 3 Replace the outdoor u
182. unit installation room should be considered YES Refrigerant shortage possibly After vacuum drying charge enerates trouble ons correct amount of refrigerant Is the operation current less than specified level NO Clogged air filter YES Soiled heat exchanger Defective indoor fan motor Refer to cle troubleshooting rm Does indoor unit airflow rate down Check the each item NO Refrigerant overcharge Soiled heat exchanger YES Short circuit of discharge air Disturbing item in airflow Defective fan motor of outdoor unit 605 07055 Refer to troubleshooting Is the level of high pressure lower than normal level Check the each item NO Insufficient compression of compressor Check the each item Insufficient circulation of refrigerant Faulty electronic expansion valve Refer to Test Operation on P 50 94 Service Diagnosis SiBE281013 Symptom based Troubleshooting 2 8 Equipment Discharges White Mist Applicable Model All models of SkyAir series Humid installation site Installation site is dirty and with dense oil mists Soiled heat exchanger Clogged air filter Defective fan motor Supposed Causes Troubleshooting A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Is the room temperature higher than set value in cooling oper
183. uter when the power turned ON Detect by checking the following temperature differences during compressor operation A Difference in temperature detected by the indoor heat exchanger thermistor R2T and the indoor suction air thermistor R1T B Difference in evaporation temperature Te or condensation temperature Tc during heating operation detected by the indoor heat exchanger thermistor R2T and the compressor sensor When the inter unit wiring between the indoor and outdoor units is incorrect When the following conditions continue for 20 minutes during compressor operation A R2T R1T lt 4 C and B R2T Te or Tc during heating operation gt 14 C 24 C during heating operation Defective inter unit wiring between the indoor and outdoor units Mismatching of wiring and piping Refrigerant shortage shortage of gas Clogged refrigerant piping system 163 Troubleshooting by Remote Controller Troubleshooting SiBE281013 A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred TLN DaT Does u appear when the power is turned ON NO Continue the condition that the blinking interval of HAP on outdoor unit PCB is short 1 for more than one minute Is the connection of inter unit wiring and piping between the indoor and outdoor units matched NO YES CHECK 11 Is the refrigerant level p
184. ve various functions 30 SCHEDULE TIMER BUTTON o This button enables or disables the schedule timer 31 TIME ADJUST BUTTON 9 O These buttons are used to adjust the clock or when in programming mode to adjust the programmed action time Both buttons have an auto repeat function 32 TEMPERATURE ADJUST BUTTONS G3 BCD These buttons are used to adjust the current setpoint or when in programming mode to adjust the programmed setpoint temperature step 1 C Both buttons are also used to adjust the day of the week 33 OPERATION CHANGE MIN MAX BUTTON mie This button is a multi purpose button Depending on the previous manipulations of the user it can have following functions 1 select the operation mode of the installation FAN DRY AUTOMATIC COOLING HEATING 2 toggle between minimum temperature and maximum temperature when in limit operation 34 SETPOINT LIMIT BUTTON O amp This button toggles between setpoint limit operation or OFF programming mode only 35 FAN SPEED BUTTON amp es This button toggles between L Low H High HH very High Automatic 36 AIRFLOW DIRECTION ADJUST BUTTON gt This button enables to adjust the airflow direction 37 AIR FILTER CLEANING TIME ICON RESET BUTTON This button is used to reset the air filter cleaning time icon Remote Controller SiBE281013 Wired Remote Controller 1 2 2 BRC1E51A7 Remote Controller N mb m o mo a gt EE
185. ver temperature judgement Juag Defrost Error code operation indication Pump down residual operation Defrost ending judgement y Four way valve Restart standby changeover Hot start control Function and Control SiBE281013 Function Details 3 Function Details 3 1 Indoor Unit 3 1 1 Set Temperature and Control Temperature The relationship between Set temperature by remote controller and Control target temperature is as shown below ie 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 3435 C Set temperature by remote controller Control target temperature Set temperature by remote controller Control target temperature The e mark indicates the Control target temperature C as an example when the Set temperature by remote controller is set there 3 1 2 Thermostat Control According to a difference between the temperature set by the remote controller and the actually detected room temperature 1 the thermostat is turned ON or OFF AT Detected room temperature Temperature set by remote controller Tro Room temperature detected when dry operation is started Tr Room temperature detected by thermistor e In normal operation In cooling AT lt 0 5 C continues for 1 minute OR E OPEN AE hennosta OFF Th tat ON ee AT gt 0 5 C In heating on A gt 0 5 C continues for 1 minute AT gt 2 C on ON LS Thermostat OFF AT lt 0 5 C Function an
186. will start when the following conditions have been realized e Integrated compressor running time is 25 minutes or more since the completion of the previous defrost operation OR e Defrost upper limit time A is met e Outdoor unit heat exchanger temperature is within the defrost request area amp Defrost conditions Outdoor unit heat exchanger temperature C AS dea ae Im P When slightly quick defrost starting is set Permit 20 1 15 1 10 55 0 7 i5 10 15 8 _ 3 7 Factory setting Permit Outdoor temperature C A 1 o 7 7 When slightly quick defrost starting is set Request 4 4 9 a 5 21 When slightly slow defrost starting is set Permit ankh a ane ae Factory setting Request B E TE a 5 oe AO O a When slightly slow defrost starting is set Request Lo OE A la A GETS EN AA a eee a OS a RNR ae an 1 A obec E ae A AS eee Defrost permit 46 T19 area AATSZ Defrost request eee y AAN 20 area __ ____ ALVA de l 7 d l Sa l l l l PA AAN 25 01 o l l Y l l l l l l ly l l l l l vical l l l l l a en Bt Defrost upper limit A Depending on the defrost start setting field setting mode of the indoor unit remote controller frost upper limit time A becomes as shown in the table below When quick defrost startingis Factory setting Starting is set set Outdoor air temperature gt 5 C Outdoor air temperature lt 5
187. y changing SH target value Degree of inadequate refrigerant Electronic expansion valve Adequate level Inadequate Cooling Intermediate heat High Pressure exchanger thermistor 3 2 Pressure sensor Low Pressure 3 This measured temperature is used to calculate the equivalent saturation pressure of the refrigerant Refer to P 183 176 Service Diagnosis SiBE281013 Troubleshooting by Remote Controller lt Diagnosis of inadequate refrigerant gt In heating operation 1 As suction superheat degree increases due to refrigerant shortage the electronic expansion valve tends to open opens fully to avoid overheat operation 2 As suction superheat degree increases due to refrigerant shortage compressor frequency decreases because suction superheat degree is controlled in order to prevent oil to the outdoor heat exchanger from being retained 3 Because of 1 and 2 above evaporator capacity and compressor frequency decrease despite a large difference large load between temperature set by the remote controller and indoor suction temperature resulting that high pressure cannot be maintained and heating capacity becomes unavailable Also a decrease in evaporator capacity frequently puts the system in defrost operation 4 If refrigerant shortage worsens high pressure becomes smaller than saturated pressure equivalent to indoor heat exchanger temperature or indoor suction temperature Refrigerant shorta

Service Manual

Contents

Download Pdf Manuals

Related Search

Related Contents