Daikin SkyAir FCQ18PVJU User Manual Download

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Ser
vice Man

ual / SkyAir In

ver
ter

R-410A Heat Pump 60Hz / P Series

SiUS28-902

Split System Air Conditioners

SkyAir Inverter

R-410A Heat Pump 60Hz

P Series

SiUS28 - 902

SiUS28-902
06/2009 AK

Specifications, designs and other content appearing in this brochure are current as of June 2009 but subject to change without notice.

Summary of Contents for SkyAir FCQ18PVJU

Page 1: ...Split System Air Conditioners SkyAir Inverter R 410A Heat Pump 60Hz P Series SiUS28 902_a...

Page 2: ...trical and Functional Parts 8 1 List of Electrical and Functional Parts 9 1 1 Outdoor Units 9 1 2 Indoor Units 10 Part 4 Refrigerant Circuit 11 1 Refrigerant Circuit 12 1 1 RZQ18 24 30PVJU 12 2 Functi...

Page 3: ...2 Field Setting from Outdoor Unit 55 3 3 Detail of Setting Mode 60 Part 7 Troubleshooting 65 1 Symptom based Troubleshooting 67 2 Troubleshooting by Remote Controller 70 2 1 The INSPECTION TEST Button...

Page 4: ...of Thermistor R4T for Outdoor Unit Heat Exchanger 116 3 26 JA Outdoor Unit Malfunction of High Pressure Sensor 117 3 27 JC Outdoor Unit Malfunction of Low Pressure Sensor 119 3 28 L1 Outdoor Unit Mal...

Page 5: ...149 5 Troubleshooting by Indication on the Unified ON OFF Controller 150 5 1 Operation Lamp Blinks 150 5 2 Display Under Host Computer Integrate Control Blinks Repeats Single Blink 152 5 3 Display Un...

Page 6: ...cause frostbite Use only pipes flare nuts tools and other materials designed specifically for R410A refrigerant systems Never use tools or materials designed for R22 refrigerant systems on an R410A r...

Page 7: ...es have scratches or have become deteriorated have them replaced Damaged cable and wires may cause an electrical shock or fire Do not use a joined power cable or an extension cord or share the same po...

Page 8: ...SiUS28 902_a 1 General Information Part 1 General Information 1 Model Names and Power Supply 2 2 External Appearance 3 2 1 Indoor Units 3 2 2 Outdoor Units 3...

Page 9: ...door Unit Outdoor Unit Power Supply Ceiling Mounted Cassette Type Multi Flow FCQ18PVJU RZQ18PVJU VJ 1 208 230V 60Hz FCQ24PVJU RZQ24PVJU FCQ30PVJU RZQ30PVJU Ceiling Suspended Type FHQ18PVJU RZQ18PVJU F...

Page 10: ...on 2 External Appearance 2 1 Indoor Units Ceiling mounted cassette type Multi flow FCQ18PVJU FCQ24PVJU FCQ30PVJU Ceiling suspended type FHQ18PVJU FHQ24PVJU FHQ30PVJU Wall mounted type FAQ18PVJU FAQ24P...

Page 11: ...SiUS28 902_a Specifications 4 Part 2 Specifications 1 Specifications 5 1 1 FCQ 5 1 2 FHQ 6 1 3 FAQ 7...

Page 12: ...nit RZQ18PVJU RZQ24PVJU RZQ30PVJU Color Ivory Ivory Ivory Dimensions H W D in mm 30 5 16 35 7 16 12 5 8 770 x 900 x 320 30 5 16 35 7 16 12 5 8 770 x 900 x 320 30 5 16 35 7 16 12 5 8 770 x 900 x 320 Co...

Page 13: ...770 x 900 x 320 30 5 16 35 7 16 12 5 8 770 x 900 x 320 Coil Type Cross fin coil Cross fin coil Cross fin coil Rows Stages FPI 2 34 18 2 34 18 2 34 18 Face area ft 7 1 7 1 7 1 Comp Model 2YC63HXD ED 2...

Page 14: ...2 5 8 770 x 900 x 320 30 5 16 35 7 16 12 5 8 770 x 900 x 320 Coil Type Cross fin coil Cross fin coil Rows Stages FPI 2 34 18 2 34 18 Face area ft 7 1 7 1 Comp Model 2YC63HXD ED 2YC63HXD ED Type Hermet...

Page 15: ...SiUS28 902_a List of Electrical and Functional Parts 8 Part 3 List of Electrical and Functional Parts 1 List of Electrical and Functional Parts 9 1 1 Outdoor Units 9 1 2 Indoor Units 10...

Page 16: ...r way valve Y1S STF 01AQ555A1 A1P X25A Solenoid valve Hot gas Y2S TEV MOAQ1684Y1 A1P X26A Solenoid valve Injection Y3S TEV MOAQ1685Y1 A1P X27A Pressure related parts Pressure switch INV S1PH ACB 4UB10...

Page 17: ...HQ 30PVJU Remote Controller Wired Remote Controller BRC1D71 Option Wireless Controller BRC7E83 Motors Fan Motor M1F 1 130W Thermal protector 266 F OFF 176 F ON Capacitor for Fan Motor C1R 9 0 F 450V S...

Page 18: ...SiUS28 902_a 11 Refrigerant Circuit Part 4 Refrigerant Circuit 1 Refrigerant Circuit 12 1 1 RZQ18 24 30PVJU 12 2 Functional Parts Layout 14 2 1 RZQ18 30PVJU 14...

Page 19: ...ion occurs this switch is activated at high pressure of 580 psi or more to stop the compressor operation S Fusible plug Prevents the increase of pressure when abnormal heating is caused by fire or oth...

Page 20: ...Refrigerant Circuit SiUS28 902_a 13 Refrigerant Circuit C 3D062238B E T S J G O D N A P M S1NPL S1NPH S1PH...

Page 21: ...SiUS28 902_a Functional Parts Layout Refrigerant Circuit 14 2 Functional Parts Layout 2 1 RZQ18 30PVJU Overview 1P241839E...

Page 22: ...t Standby 26 3 6 Stopping Operation 27 3 7 Pressure Equalization Prior to Startup 28 4 Protection Control 29 4 1 High Pressure Protection Control 29 4 2 Low Pressure Protection Control 30 4 3 Discharg...

Page 23: ...ormal operation Compressor PI control Electronic expansion valve PI control Protection control Indoor unit thermostat ON Defrost IN conditions are met No Yes Defrosting operation Cooling or heating op...

Page 24: ...Subcooling electronic expansion valve EV2 PI control Hot gas bypass valve SVP OFF This valve turns on with low pressure protection control Receiver gas discharging valve SVG OFF Actuator Operation Re...

Page 25: ...capacity to adjust Te to achieve target value TeS Te Low pressure equivalent saturation temperature F Te setting Set in Set up mode 2 TeS Target Te value Varies depending on Te setting operating frequ...

Page 26: ...ending on the discharge pipe superheated degree of inverter compressor Subcooling Electronic Expansion Valve EV2 Control Makes PI control of the electronic expansion valve Y2E to keep the superheated...

Page 27: ...Pc 261 psi Pc 348 psi Pc 261 psi Pc 348 psi Pc 261 psi Pc 348 psi Pc 261 psi Pc 348 psi Pc 261 psi Pc 348 psi Pc 261 psi Pc 334 psi Pc 261 psi Pc 305 psi STEP 0 Pc 261 psi Pc 276 psi 850rpm 715rpm 58...

Page 28: ...sure control Initial fan speed is set to STEP 0 1 step increase with Pc 305 psi 1 step decrease with Pc 261 psi Four way valve OFF Main electronic expansion valve EV1 1400 pls Subcooling electronic ex...

Page 29: ...or load Outdoor unit actuator Oil return preparation operation Oil return operation Postoil return operation Compressor Upper limit control 124 Hz 124 Hz Outdoor unit fan Fan control Fan control Fan c...

Page 30: ...to reduce noise when changing the position of the four way valve Outdoor Unit Actuator Oil return preparation operation Oil return operation Post oil return operation Compressor Upper limit control 1...

Page 31: ...t the compressor stops for 1 minute to reduce noise on changing of the four way valve Outdoor unit actuator Defrost preparation operation Defrost operation Post Defrost operation Compressor 52 Hz 177...

Page 32: ...Pump down Residual Operation in Heating Operation Actuator Master unit operation Compressor 124 Hz Outdoor unit fan Fan control Four way valve OFF Main electronic expansion valve EV1 2000 pls Subcooli...

Page 33: ...essure in the refrigerant system Actuator Operation Remarks Compressor OFF Outdoor unit fan Ta 86 F STEP 4 Ta 86 F OFF Four way valve Keep former condition Main electronic expansion valve EV1 0 pls Su...

Page 34: ...1 When System is in Stop Mode Actuator Operation Compressor OFF Outdoor unit fan OFF Four way valve Keep former condition Main electronic expansion valve EV1 0 pls Subcooling electronic expansion valv...

Page 35: ...inverters turn on electricity and capacitors are charged Actuator Operation Remarks Compressor OFF Outdoor unit fan Cooling OFF Heating Ta 78 8 F STEP 8 Ta 78 8 F OFF Four way valve Keep former condit...

Page 36: ...V upper limit frequency 1 step up from current compressor frequency INV upper limit frequency 1 step up from current compressor frequency Pc HP pressure sensor detection value INV upper limit frequenc...

Page 37: ...pressure sensor detection value When occurring 3 times within 60 min the malfunction code E4 is output Pe 10 psi 145 5Hz Upper limit Upper limit 57Hz Upper limit 1 step up from current compressor fre...

Page 38: ...during defrost operation preparation post operation Not during oil return operation in heating preparation post operation Not during oil return operation in cooling without preparation and post opera...

Page 39: ...n occurring 4 times within 60 min the malfunction code L9 is output OR Limited INV upper limit frequency 1 step down from current compressor frequency INV upper limit frequency 1 step up from current...

Page 40: ...o completely drain any moisture adhering to the fin of the indoor unit heat exchanger when the thermostat goes off during cooling operation 2 Malfunction residual The remote controller will display A3...

Page 41: ...til the switch is reset 5 2 4 When the Float Switch is Tripped and AF is Displayed on the Remote Controller 4 Malfunction residual If the float switch is tripped five times in succession a drain malfu...

Page 42: ...ion is the standard position P0 P1 P2 P4 P3 P0 P1 P2 P4 P3 P0 P0 P1 P2 P4 P4 P2 P1 P0 P4 P4 P3 P2 P1 P0 P3 Existing position Draft prevention position Standard Setting position Ceiling soiling prevent...

Page 43: ...air conditioners the VRV system is off and that temperature changes even when the thermostat sensor is off Unit mounted temperature sensor is used for temperatures from 64 F to 73 F A C Remote control...

Page 44: ...Other Control SiUS28 902_a 37 Function...

Page 45: ...g the preset temperature in the figure above is 75 F and the return air temperature has changed from 64 F to 82 F A D This example also assumes there are several other air conditioners the VRV system...

Page 46: ...enters freeze prevention operation in accordance with the following conditions and is also set in accordance with the conditions given below Conditions for starting freeze prevention Temperature is 30...

Page 47: ...vel Level Level Halt Swinging OFF Level Level Level Setting the wind direction OFF Level Level Level Cooling Thermostat of microcomputer dry is on Swinging L 1 Swinging Swinging Swinging Setting the w...

Page 48: ...1 Test Operation 42 1 1 Procedure and Outline 42 1 2 Operation when Power is Turned On 45 2 Outdoor Unit P C B Layout 46 3 Field Setting 47 3 1 Field Setting from Remote Controller 47 3 2 Field Settin...

Page 49: ...ts than 200 230V circuit Are the setscrews of the wiring tight Is the electrical component box completely covered with an insulation cover Is pipe size correct The design pressure of this product is 4...

Page 50: ...is left closed Open the gas side shutoff valve and the liquid side shutoff valve Refrigerant overcharge Recalculate the required amount of refrigerant from the piping length and correct the refrigera...

Page 51: ...corresponding outdoor unit operates Confirm that the indoor unit discharges cold air or warm air Operate the air direction control button and flow rate control button to check the function of the dev...

Page 52: ...not push the RESET button the unit cannot be run for up to 10 minutes to automatically set master power Status Outdoor unit Test lamp H2P Blinks Can also be set during operation described above Indoo...

Page 53: ...switch 1 Service monitor Connection terminal for transmission use HAP 1 Service monitor LED Green This monitor blinks while in normal operation and turns on or off when a malfunction occurs 2 Set mod...

Page 54: ...r 4 seconds or more and the FIELD SET MODE is entered 2 Select the desired MODE NO with the button O 3 During group control when setting by each indoor unit mode No 20 22 and 23 have been selected pus...

Page 55: ...d set mode 2 Select the desired mode No with the button 3 Pushing the button select the first code No 4 Pushing the button select the second code No 5 Push the timer button and check the settings 6 Pu...

Page 56: ...on DISPLAY OPERATION MODE This display shows current OPERATION MODE is not available with outdoor units specially designed for cooling only is reserved only for outdoor units capable of heat recovery...

Page 57: ...eavy filter contamination Ultra Long Life Type Light Approx 10 000 hours Heavy Approx 5 000 hours Long Life Type Approx 2 500 hours Approx 1 250 hours Standard Type Approx 200 hours Approx 100 hours 1...

Page 58: ...ype Multi flow Ceiling suspended type Wall mounted type FCQ FHQ FAQ 10 20 0 Filter sign 1 Ultra long life filter sign 2 Remote controller thermostat sensor 12 22 3 Set fan speed when thermostat OFF 13...

Page 59: ...he main power supply is turned on again after once turned off However for the air conditioners with the setting the units may start automatically after power failure reset or the main power supply tur...

Page 60: ...perature and operation mode setting by remote controller can be set and displayed by operation modes 0 through 19 ON OFF control impossible by remote controller Used when you want to turn on off by ce...

Page 61: ...ntroller Control mode Operation OFF Temperature control Operation mode setting Unified operation individual operation by central remote controller or operation controlled by timer Unified OFF individu...

Page 62: ...RETURN BS4 TEST BS5 RESET Setting mode 1 Monitor mode H1P Push the BS1 MODE button one time Blinking MODE MODE Off H1P Setting mode 2 MODE On H1P Push and hold the BS1 MODE button for 5 seconds Push t...

Page 63: ...tting displaying item LED display example H1P H2P H3P H4P H5P H6P H7P Normal h h k h h h h Malfunction h k k h h h h Preparing Test run h l k h h h h a Setting mode 1 Normally Setting mode 1 is set In...

Page 64: ...e low noise operation end setting Sets ending time of nighttime low noise operation Night time low noise setting is also required 29 Capacity precedence setting If the capacity control is required the...

Page 65: ...noise setting Demand setting k h h k k h h External low noise demand NO k h h h h h k External low noise demand YES k h h h h k h 21 Refrigerant recovery vacuuming mode setting k h k h k h k Refriger...

Page 66: ...h h h h h h Tc setting H l h h h h h k M l h h h h h l L l h h h h h h c Monitor mode Selection of setting item Confirmation on setting contents To enter the monitor mode push the MODE button BS1 when...

Page 67: ...PM 0 00 for set item No 26 Setting of start time of nighttime low noise operation Use the start time as a guide since it is estimated according to outdoor temperatures 3 If necessary while in Setting...

Page 68: ...l are displayed 2 Setting mode 2 H1P on In setting 1 push and hold the BS1 MODE button for more than 5 seconds Setting mode 2 is entered and H1P lights Push the BS2 SET button several times and match...

Page 69: ...ory setting Mode 1 l Mode 2 l Mode 3 l l 26 Night time low noise start setting PM 8 00 l PM 10 00 Factory setting l PM 0 00 l 27 Night time low noise end setting AM 6 00 l AM 7 00 l AM 8 00 Factory se...

Page 70: ...ruction attached to the refrigerant recovery unit for more detail Press Mode button BS1 once and reset Setting Mode 2 3 3 4 Setting of Vacuuming Mode In order to perform vacuuming operation at site fu...

Page 71: ...T button BS4 for 5 seconds 10 sec to 10 minutes LED display H1P H7P k ON l BLINK h OFF hhkhhhh hlhhhhk Pressure equalizing Step 1 20 sec to 2 minutes 10 minutes To 30 seconds hlhhhkh Cooling start con...

Page 72: ...Indoor Unit Malfunction of Thermistor R2T for Heat Exchanger 96 3 10 C5 Indoor Unit Malfunction of Thermistor R3T for Gas Pipes 97 3 11 C9 Indoor Unit Malfunction of Thermistor R1T for Suction Air 98...

Page 73: ...34 3 39 U5 Malfunction of Transmission between Remote Controller and Indoor Unit 136 3 40 U8 Malfunction of Transmission between Main and Sub Remote Controllers 137 3 41 UE Malfunction of Transmission...

Page 74: ...sources e g OA equipment located in a room 4 The system does not operate The system stops and immediately restarts operation If the OPERATION lamp on the remote controller turns ON the system will be...

Page 75: ...unit is brought to fan LL operation so that no one gets cold air Furthermore if fan operation mode is selected when other indoor unit is in heating operation the system will be brought to fan LL oper...

Page 76: ...that the compressor changes the operating frequency Normal operation 12 Dust emits from the system Dust emits from the system when it restarts after the stop for an extended period of time Dust which...

Page 77: ...ration button for more than 4 seconds Push the Inspection Test Operation button once Push the Inspection Test Operation button once Or after 30 minutes After 10 seconds Push the Inspection Test Operat...

Page 78: ...malfunction code and malfunction contents Note 1 Pressing the INSPECTION TEST button will blink the check indication 2 While in check mode pressing and holding the ON OFF button for a period of five...

Page 79: ...onduct 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 malfunction code is confir...

Page 80: ...Troubleshooting by Remote Controller SiUS28 902_a 73 Troubleshooting The lower digit of the code changes as shown below when the UP and DOWN buttons are pressed...

Page 81: ...SiUS28 902_a Troubleshooting by Remote Controller Troubleshooting 74...

Page 82: ...Split system Display A 8 F Outdoor model code Model RZQ P Unit Malfunction code Inspection Normal display No display 0 L 0 Malfunction code blinks when a malfunction occurs Unit Malfunction code Inspe...

Page 83: ...group control only Select the indoor unit No to be set with the time mode For wireless remote controller button 3 Make the settings required for each mode Modes 41 44 45 In case of Mode 44 45 push th...

Page 84: ...N Manually turn the fan ON by each unit When you want to search for the unit No By selecting the unit No with the button you can turn the fan of each indoor unit on forced ON individually 44 Individua...

Page 85: ...unction code and display of malfunctioning unit No let you know the contents and location of the malfunction When there is a stop due to malfunction the contents of the malfunction given below can be...

Page 86: ...f high pressure switch 102 E4 l l l Actuation of low pressure sensor 104 E5 l l l Inverter compressor motor lock 106 E6 l l l Standard compressor lock or overcurrent E7 l l l Malfunction of outdoor un...

Page 87: ...ntroller 137 UE l l l Malfunction of transmission between centralized remote controller and indoor unit 138 UF l l l System is not set 140 UH l l l Malfunction of system refrigerant system address und...

Page 88: ...ompressor lock E5 Over load overcurrent Detection of DC fan 1 motor lock E7 Malfunction of electronic expansion EV1 E9 Faulty sensor of outdoor air temperature Faulty Ta sensor short H9 Abnormal disch...

Page 89: ...F6 l h l l h l h h h h l h h l l J3 l h l l h l h h l l l h h h h l h h 1 J5 l h l h l l h h h h l h h l h h h h l h l J6 l h l l h l h h h h l h h JA l l h l h l h h h h l h h JC l l l h h l h h h h...

Page 90: ...once to display malfunction location Detail description on next page Confirmation of malfunction 4 Push the SET BS2 button once to display master or slave 1 or slave 2 and malfunction location Content...

Page 91: ...h h h l h l h h l h h h h l h h 1 U0 l l h h l l h h h h l h h h h l h h l l U2 l h h l h l h h h h l h h 1 l h h h h h l l h h h h l h h l h l h h h h l h h h l U3 l h h l l l h h h h l h h l l l h h...

Page 92: ...rnal protection device Improper field set Defect of indoor unit P C B Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting the connector or parts could be da...

Page 93: ...t be correctly received from the E PROM E PROM Type of nonvolatile memory Maintains memory contents even when the power supply is turned off Supposed Causes Defect of indoor unit P C B Troubleshooting...

Page 94: ...FHQ Option FAQ Option Method of Malfunction Detection Float switch OFF detection Malfunction Decision Conditions When rise of water level is not a condition and the float switch goes OFF Supposed Cau...

Page 95: ...unit P C B Loose connection of connector NO NO NO YES YES NO NO YES NO YES NO NO The float switch is connected to X8A or X15A of the indoor unit P C B NO The drain pump works when the power supply is...

Page 96: ...d even when output voltage to the fan is maximum Supposed Causes Fan motor lock Disconnected or faulty wiring between fan motor and P C B Troubleshooting Caution Be sure to turn off the power switch b...

Page 97: ...ction Utilizes ON OFF of the limit switch when the motor turns Malfunction Decision Conditions When ON OFF of the microswitch for positioning cannot be reversed even though the louver motor is energiz...

Page 98: ...on again Replace the indoor unit P C B NO NO YES NO YES NO YES YES NO Indoor unit is a model equipped with a louver function The louver motor works when the power supply is turned off and then back o...

Page 99: ...oubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting the connector or parts could be damaged After connecting turn the power supply off and then back on Replac...

Page 100: ...electronic expansion valve Disconnect the electronic expansion valve from the P C B and check the continuity between the connector pins Normal Continuity No continuity Pin No 1 White 2 Yellow 3 Orange...

Page 101: ...t switch changes from ON to OFF while the compressor is in non operation Supposed Causes Humidifier unit optional accessory leaking Defect of drain pipe upward slope etc Defect of indoor unit P C B Tr...

Page 102: ...and 1 When the capacity code is not contained in the P C B s memory and the capacity setting adaptor is not connected 2 When a capacity that doesn t exist for that unit is set Supposed Causes You have...

Page 103: ...sconnected or shorted while the unit is running Supposed Causes Defect of thermistor R2T for liquid pipe Defect of indoor unit P C B Troubleshooting Refer to thermistor resistance temperature characte...

Page 104: ...or shorted while the unit is running Supposed Causes Defect of indoor unit thermistor R3T for gas pipe Defect of indoor unit P C B Troubleshooting Refer to thermistor resistance temperature characteri...

Page 105: ...omes disconnected or shorted while the unit is running Supposed Causes Defect of indoor unit thermistor R1T for air inlet Defect of indoor unit P C B Troubleshooting Refer to thermistor resistance tem...

Page 106: ...stor becomes disconnected or shorted while the unit is running Supposed Causes Defect of indoor unit thermistor for air outlet Defect of indoor unit P C B Troubleshooting Refer to thermistor resistanc...

Page 107: ...comes disconnected or shorted while the unit is running Supposed Causes Defect of remote controller thermistor Defect of remote controller P C B Troubleshooting Note In case of remote controller therm...

Page 108: ...e correctly received from the E PROM E PROM Type of nonvolatile memory Maintains memory contents even when the power supply is turned off Supposed Causes Defect of outdoor unit P C B A1P Troubleshooti...

Page 109: ...contact of the high pressure protection switch opens Malfunction Decision Conditions Error is generated when the HPS activation count reaches the number specific to the operation mode Reference Opera...

Page 110: ...the pressure detected with the P C B normal See 2 Replace the main P C B The high pressure sensor is normal and the pressure detected with the P C B is also normal The high pressure has really become...

Page 111: ...30PVJU Method of Malfunction Detection Abnormality is detected by the pressure value with the low pressure sensor Malfunction Decision Conditions Error is generated when the low pressure is dropped un...

Page 112: ...come low Remove the causes by which the low pressure has become low 1 Make a comparison between the voltage of the pressure sensor and that read by the pressure gauge As to the voltage of the pressure...

Page 113: ...al from UVW line connected between the inverter and compressor and the malfunction is detected when any abnormality is observed in the phase current waveform Malfunction Decision Conditions This malfu...

Page 114: ...ES Check and see whether compressor is short circuited or grounded YES YES Are inverter output voltages the same for 3 phases Does low or high pressure vary even instantaneously when restarting compre...

Page 115: ...ction of fan motor The harness connector between fan motor and P C B is left in disconnected or faulty connector Fan does not run due to foreign matters tangled Clearing condition Operate for 5 minute...

Page 116: ...oller Display E9 Applicable Models RZQ18 30PVJU Method of Malfunction Detection Check disconnection of connector Check continuity of expansion valve coil Malfunction Decision Conditions Error is gener...

Page 117: ...ctor or parts could be damaged Return to normal Turn power supply off and turn power supply on again Electronic expansion valve is connected to X21A and X22A of outdoor unit P C B A1P Normal when coil...

Page 118: ...sensor Faulty connection of discharge pipe temperature sensor Faulty outdoor unit P C B Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table on P 166 Caution Be sure to tu...

Page 119: ...erant overcharge Misalignment of the thermistor for heat exchanger Defect of the thermistor for heat exchanger Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table on P 166...

Page 120: ...hort circuit or open circuit Supposed Causes Defect of thermistor R1T for outdoor air Defect of outdoor unit P C B A1P Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table...

Page 121: ...pe temperature thermistor is detected Supposed Causes Defect of thermistor R2T for outdoor unit discharge pipe Defect of outdoor unit P C B A1P Troubleshooting Refer to Thermistor Resistance Temperatu...

Page 122: ...2 are detected Supposed Causes Defect of thermistor R3T R5T for outdoor unit suction pipe Defect of outdoor unit P C B A1P Troubleshooting Refer to Thermistor Resistance Temperature Characteristics t...

Page 123: ...eat exchange thermistor is detected Supposed Causes Defect of thermistor R4T for outdoor unit heat exchanger Defect of outdoor unit P C B A1P Troubleshooting Refer to Thermistor Resistance Temperature...

Page 124: ...JA Applicable Models RZQ18 30PVJU Method of Malfunction Detection Malfunction is detected from the pressure detected by the high pressure sensor Malfunction Decision Conditions When the high pressure...

Page 125: ...wer switch before connecting or disconnecting the connector or parts could be damaged The relationship between the 1 VH and high pressure is normal see 2 when voltage is measured between X17A pins 1 a...

Page 126: ...lay JC Applicable Models RZQ18 30PVJU Method of Malfunction Detection Malfunction is detected from pressure detected by low pressure sensor Malfunction Decision Conditions When the low pressure sensor...

Page 127: ...itch before connecting or disconnecting the connector or parts could be damaged The relationship between the 1 VL and low pressure is normal see 2 when voltage is measured between X18A pins 2 and 3 of...

Page 128: ...function Decision Conditions In case of overcurrent OCP during waveform output When the current sensor malfunctions during synchronized operation When overvoltage occurs in SP PAM In case of IGBT malf...

Page 129: ...tor Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting the connector or parts could be damaged Faulty heat radiation of power unit Air suction opening bloc...

Page 130: ...ltage than actual is displayed when the inverter output voltage is checked by tester Caution Be sure to turn off the power switch before connecting or disconnecting the connector or parts could be dam...

Page 131: ...Remote Controller Display L8 Applicable Models RZQ18 30PVJU Method of Malfunction Detection Malfunction is detected by current flowing in the power transistor Malfunction Decision Conditions When ove...

Page 132: ...tion of the compressor and refrigerant system is required Compressor inspection Inspect according to the diagnosis procedure for odd noises vibration and operating status of the compressor NO Replace...

Page 133: ...off the power switch before connecting or disconnecting the connector or parts could be damaged Inverter output voltage check Inverter output voltage is not balanced Normal if within 5V Must be measu...

Page 134: ...s Malfunction of connection between the inverter microcomputer and outdoor control microcomputer Defect of outdoor unit P C B Defect of noise filter External factor Noise etc Troubleshooting Caution B...

Page 135: ...ded while the unit operation is continued P4 will be displayed by pressing the inspection button Supposed Causes Defect of radiator fin temperature sensor Defect of outdoor unit P C B A1P Troubleshoot...

Page 136: ...alfunction Detection Short of gas malfunction is detected by discharge pipe temperature thermistor and low pressure saturation temperature Malfunction Decision Conditions Microcomputer judge and detec...

Page 137: ...or refrigerant system is clogged Requires check of refrigerant system Replace the thermistor Replace the outdoor unit P C B A1P YES YES NO NO Out of gas closing of stop valve or refrigerant system is...

Page 138: ...d of Malfunction Detection Detection of voltage of main circuit capacitor built in the inverter and power supply voltage Malfunction Decision Conditions When the abnormal voltage of main circuit capac...

Page 139: ...O When the compressor is running measure the voltage between and of electrolytic capacitor C C CHECK 3 Is the resistance above standard value Is the measured voltage 220 VDC or more Replace the fan mo...

Page 140: ...nditions Malfunction is decided when the unit starts operation without check operation Supposed Causes Check operation is not executed Troubleshooting Has the check operation performed on Outdoor unit...

Page 141: ...of Malfunction Detection Microcomputer checks if transmission between indoor and outdoor units is normal Malfunction Decision Conditions When transmission is not carried out normally for a certain amo...

Page 142: ...outdoor unit P C B for 5 seconds Fix the indoor outdoor unit transmission wiring YES NO NO YES Has the indoor or outdoor unit P C B been replaced or has the indoor outdoor or outdoor outdoor unit tran...

Page 143: ...indoor unit P C B Defect of remote controller P C B Malfunction of transmission caused by noise Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting the con...

Page 144: ...ontinue for specified period Supposed Causes Malfunction of transmission between main and sub remote controller Connection between sub remote controllers Defect of remote controller P C B Troubleshoot...

Page 145: ...f Malfunction Detection Microcomputer checks if transmission between indoor unit and centralized remote controller is normal Malfunction Decision Conditions When transmission is not carried out normal...

Page 146: ...nected or wired incorrectly Is the master controller s connector for setting master controller disconnected Set the group No correctly Replace indoor unit P C B Fix the wiring correctly Fix the wiring...

Page 147: ...heck operation Defect of indoor unit P C B Stop valve is left in closed Troubleshooting Note Wiring check operation may not be successful if carried out after the outdoor unit has been off for more th...

Page 148: ...ss Undefined Remote Controller Display UH Applicable Models AII indoor unit models RZQ18 30PVJU Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Improper connection of t...

Page 149: ...me after installation after an indoor or outdoor unit P C B has been replaced Is indoor outdoor and outdoor outdoor unit transmission wiring normal YES Normal NO Does a malfunction occur NO Does a UH...

Page 150: ...dels Centralized Remote Controller Method of Malfunction Detection Microcomputer checks if transmission between indoor unit and centralized remote controller is normal Malfunction Decision Conditions...

Page 151: ...roller disconnected or wired incorrectly Is the master controller s connector for setting master controller disconnected Set the group No correctly Replace indoor unit P C B Fix the wiring correctly F...

Page 152: ...ooting 4 2 M1 P C B Defect Remote Controller Display M1 Applicable Models Centralized remote controller Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Defect of centra...

Page 153: ...be damaged Is transmission wiring disconnected or wired incorrectly The P C B of one of the optional controllers for centralized control is defective Try turning on off using each optional controllers...

Page 154: ...Centralized Control Remote Controller Display MA Applicable Models Centralized remote controller Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Improper combination o...

Page 155: ...r and reset the power supply for all optional controllers for centralized control simultaneously Arrange so that the connector for setting master control is connected to one controller for centralized...

Page 156: ...Decision Conditions Supposed Causes Address duplication of centralized remote controller Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting the connector o...

Page 157: ...Display Operation lamp blinks Applicable Models All models of indoor units Unified ON OFF controller Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Malfunction of tra...

Page 158: ...setting master controller disconnected Set the group No correctly Replace the indoor unit P C B Fix the wiring correctly Fix the wiring correctly Connect the connector correctly Replace the central P...

Page 159: ...ble Models Unified ON OFF controller Centralized controller Schedule timer Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Address duplication of centralized remote con...

Page 160: ...troller or schedule timer NO YES YES NO NO Fix the wiring correctly Set reset switch to normal NO NO YES YES YES Is the power supply turned on for all optional controllers for centralized control Rese...

Page 161: ...ed control simultaneously Arrange so that the connector for setting master control is connected to one controller for centralized control and reset the power supply for all optional controllers for ce...

Page 162: ...transmission wiring Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting the connector or parts could be damaged Is the switch for setting each address set c...

Page 163: ...g High suction air temperature of the condenser In heating High suction air temperature of outdoor unit Short circuit High ambient temperature Is the suction air temperature not more than 115 F Is the...

Page 164: ...r temperature of the evaporator In heating Low suction air temperature of indoor unit Short circuit Is the suction air temperature not less than 57 F Is the indoor temperature not less than 57 F Low a...

Page 165: ...the connector of the outdoor unit fan motor after confirming that the outdoor unit fan has stopped because electrical energy is stored in the capacitor and there may be a risk of electric shock 5 Rem...

Page 166: ...8 Appendix 1 Piping Diagrams 160 1 1 Outdoor Unit 160 1 2 Indoor Unit 161 2 Wiring Diagrams for Reference 162 2 1 Outdoor Unit 162 2 2 Indoor Unit 163 3 Thermistor Resistance Temperature Characterist...

Page 167: ...SiUS28 902_a Piping Diagrams Appendix 160 1 Piping Diagrams 1 1 Outdoor Unit RZQ18PVJU RZQ24PVJU RZQ30PVJU C 3D062238B S1NPL S1NPH S1PH...

Page 168: ...oor Unit FCQ18P 24P 30PVJU FHQ18P 24P 30PVJU FAQ18P 24PVJU R1T Thermistor for suction air temperature R2T Thermistor for liquid line temperature R3T Thermistor for gas line temperature in C 4D024460D...

Page 169: ...VALVE SOLENOID VALVE HOT GAS SOLENOID VALVE INJECTION NOISE FILTER FERRITE CORE NOISE FILTER POWER SUPPLY INDOOR 208 230V 60Hz F1 F2 L1R X1M L1L2 A2P NOTE 3 L2 GRN YLW NOTE 4 A2P L1 H2P H4P H8P H6P H...

Page 170: ...SET CONNECTOR WIRING ADAPTER FOR ELECTORICAL APPENDICES CONNECTOR WIRELESS REMOTE CONTROLLER NOTES 1 TERMINAL CONNECTOR FIELD WIRING 2 IN CASE USING CENTRAL REMOTE CONTROLLER CONNECT IT TO THE UNIT I...

Page 171: ...ECEIVER DISPLAY UNIT WIRELESS REMOTE CONTROLLER POWER SUPPLY 208 230V A3P A2P 60Hz A1P X2A H1P SS1 H2P BS1 H3P SS2 X23A X1M H4P X1A X1A R3T R2T R1T L 2 L 1 t t t WHT RED A1P X13A X12A X8A X11A X31A F1...

Page 172: ...BLU X20A X36A X15A X7A NOTE 2 SS1 P1 BLK P2 WIRED REMOTE CONTROLLER X1M A1P HAP R1T X1M P1 WHT HAP BRN RED ORG BLU WHT X1M 5 WHEN CONNECTING THE INPUT WIRES FROM OUTSIDE FORCED OFF OR ON OFF CONTROL...

Page 173: ...70 3 50 15 8 9 106 03 87 8 31 15 43 159 8 71 3 38 17 6 8 100 41 89 6 32 14 79 161 6 72 3 27 19 4 7 95 14 91 4 33 14 18 163 4 73 3 16 21 2 6 90 17 93 2 34 13 59 165 2 74 3 06 23 0 5 85 49 95 0 35 13 0...

Page 174: ...0 20 7 312 8 156 0 2 7 64 4 18 0 322 4 190 4 88 0 19 3 316 4 158 0 2 6 68 0 20 0 292 9 194 0 90 0 18 1 320 0 160 0 2 5 71 6 22 0 266 3 197 6 92 0 16 9 323 6 162 0 2 3 75 2 24 0 242 5 201 2 94 0 15 8 3...

Page 175: ...Pressure PH Low Pressure PL PH Detected Pressure High Side PL Detected Pressure Low Side VH Output Voltage High Side VDC VL Output Voltage Low Side VDC PH 1 38V 0 69 PL 0 57V 0 28 PH High pressure PL...

Page 176: ...SiUS28 902_a 169 Precautions for New Refrigerant R 410A Part 9 Precautions for New Refrigerant R 410A 1 Precautions for New Refrigerant R 410A 170 1 1 Outline 170 1 2 Service Tools 172...

Page 177: ...frigerant mixture of two 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...

Page 178: ...for New Refrigerant R 410A Thermodynamic characteristic of R 410A Temperature Steam pressure kPa Liquid Vapor Density kg m3 Liquid Vapor Specific heat at constant pressure kJ kgK Liquid Vapor Specific...

Page 179: ...407C R 22 Gauge manifold Charge hose Do not use the same tools for R 22 and R 410A Thread specification differs for R 410A and R 407C Gas detector The same tool can be used for HFCs Vacuum pump pump...

Page 180: ...ipe extension margin of 0 to 0 5mm was provided for flaring For R 410A air conditioners perform pipe flaring with a pipe extension margin of 1 0 to 1 5mm For clutch type only Conventional tool with pi...

Page 181: ...m degree of vacuum 50 l min 50Hz Select a vacuum pump which is able to keep 60 l min 60Hz the vacuum degree of the system in excess of Suction port UNF7 16 20 1 4 Flare 14 6 psi 5 torr or 5000 micron...

Page 182: ...407C R 404A R 507A R 134a etc Differences Previous testers detected chlorine Since HFCs do not contain chlorine new tester detects hydrogen 5 Refrigerant oil Specifications Contains synthetic oil the...

Page 183: ...tion of contamination Temperature scale indicates the relationship between pressure and temperature in gas saturated state Differences Change in pressure Change in service port diameter 7 Charge hose...

Page 184: ...stant sight glass to check liquid refrigerant charging A manifold with separate ports for HFCs and previous refrigerants is equipped as a standard accessory Differences Measurement is based on weight...

Page 185: ...SiUS28 902 Precautions for New Refrigerant R 410A Precautions for New Refrigerant R 410A 178...

Page 186: ...e auspices of the American Society of Heating Refrigeratin and Air Conditioning Engineers ASHRAE Daikin Industries Ltd s products are manufactured for export to numerous countries throughout the world...

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Daikin SkyAir FCQ18PVJU, Service Manual

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