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Troubleshooting by Indication on the Remote Controller

SiUS28-902_B

102

Service Diagnosis

3.11 Suction Air Thermistor Abnormality

Remote 
Controller 
Display

C9

Applicable 
Models

FCQ, FHQ, FAQ

Method of Error 
Detection

The error is detected by temperature detected by suction air temperature thermistor. 

Error Decision 
Conditions

When the suction air temperature thermistor becomes disconnected or shorted while the unit is 
running

Supposed 
Causes

Defective indoor unit thermistor for suction air

Defective indoor unit PCB

Troubleshooting

Note:

 Connector and indoor unit PCB

 Refer to “Thermistor Resistance / Temperature Characteristics” table on P.161.

Connector is 

connected to the 

connector(

*

) of the indoor

 

u

nit PCB.

Resistance 

is normal 

w

hen 

meas

u

red after 

disconnecting the thermistor 

from the indoor 

u

nit 

PCB (7.2



 

~

 

112



)

Caution

Be s

u

re to t

u

rn off the po

w

er s

w

itch 

b

efore connecting or disconnecting 

the connector or parts may 

b

e damaged.

Replace the indoor 

u

nit PCB.

Connect the thermistor and t

u

rn 

O

N

 again. 

N

O

N

O

Replace the thermistor (

*

). 

YES

YES

Model

Connector for the suction air thermistor

Symbol

PCB

FCQ

X13A

R1T

A1P

FHQ

X13A

R1T

A1P

FAQ

X19A

R1T

A1P

Содержание SkyAir RZQ-P Series

Страница 1: ...Service Manual RZR P RZQ P 9 Series Cooling Only Heat Pump R 410A 60Hz SiUS28 902_B...

Страница 2: ...v 1 1 Safety Considerations for Repair v 1 2 Safety Considerations for Users vi 1 3 Preface vii Part 1 General Information 1 1 Model Names and Power Supply 2 1 1 Cooling Only 2 1 2 Heat Pump 2 2 Exter...

Страница 3: ...3 5 Restart Standby 21 3 6 Stopping Operation 22 3 7 Pressure Equalization Prior to Startup 22 4 Protection Control 23 4 1 High Pressure Protection Control 23 4 2 Low Pressure Protection Control 24 4...

Страница 4: ...on Device Abnormality 89 3 2 PCB Abnormality 90 3 3 Drain Water Level System Abnormality 91 3 4 Indoor Unit Fan Motor Abnormality 93 3 5 Swing Flap Motor Abnormality Lock 94 3 6 Electronic Expansion V...

Страница 5: ...Thermistor Abnormality 134 3 37 Refrigerant Shortage 135 3 38 Power Supply Voltage Abnormality 136 3 39 Check Operation not Executed 138 3 40 Transmission Error between Indoor Units and Outdoor Units...

Страница 6: ...hock If refrigerant gas is discharged during repair work do not touch the discharged refrigerant gas The refrigerant gas may cause frostbite Use only pipes flare nuts tools and other materials designe...

Страница 7: ...ssive heat generation or fire If the power cable and lead wires have scratches or have become deteriorated have them replaced Damaged cable and wires may cause an electrical shock or fire Do not use a...

Страница 8: ...s Cooling Only and 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 b...

Страница 9: ...02_B General Information 1 Part 1 General Information 1 Model Names and Power Supply 2 1 1 Cooling Only 2 1 2 Heat Pump 2 2 External Appearance 3 2 1 Indoor Units 3 2 2 Remote Controller 4 2 3 Outdoor...

Страница 10: ...JU FCQ24PVJU RZR24PVJU FCQ30PVJU RZR30PVJU FCQ36MVJU RZR36PVJU FCQ42MVJU RZR42PVJU Ceiling suspended type FHQ18PVJU RZR18PVJU FHQ24PVJU RZR24PVJU FHQ30PVJU RZR30PVJU FHQ36MVJU RZR36PVJU FHQ42MVJU RZR4...

Страница 11: ...pearance 2 1 Indoor Units Ceiling Mounted Cassette Type Multi Flow FCQ18PVJU FCQ24PVJU FCQ30PVJU FCQ36MVJU FCQ42MVJU Ceiling Suspended Type FHQ18PVJU FHQ24PVJU FHQ30PVJU FHQ36MVJU FHQ42MVJU Wall Mount...

Страница 12: ...arance SiUS28 902_B 4 General Information 2 2 Remote Controller 2 3 Outdoor Units RZR18PVJU RZR24PVJU RZR30PVJU RZQ18PVJU9 RZQ24PVJU9 RZQ30PVJU RZR36PVJU RZR42PVJU RZQ36PVJU9 RZQ42PVJU9 Wired Type BRC...

Страница 13: ...frigerant Circuit 5 Part 2 Refrigerant Circuit 1 Refrigerant Circuit 6 1 1 RZR18 24 30PVJU RZQ18 24 30PVJU 9 6 1 2 RZR36 42PVJU RZQ36 42PVJU 9 8 2 Functional Parts Layout 10 2 1 RZR18 24 30PVJU RZQ18...

Страница 14: ...t high pressure of 580 psi or more to stop the compressor operation S Fusible plug In order to prevent the increase of pressure when abnormal heating is caused by fire or others the fusible part of th...

Страница 15: ...ve Solenoid valve Capillary tube Four way valve Check valve High pressure sensor High pressure switch Low pressure sensor Compressor accumulator Pressure regulating valve Outdoor heat exchanger Servic...

Страница 16: ...sor operation S Fusible plug In order to prevent the increase of pressure when abnormal heating is caused by fire or others the fusible part of the plug is molten at a temperature of 158 to 167 F to r...

Страница 17: ...ilter Double pipe heat exchanger Pressure regulating valve High pressure sensor Filter Solenoid Capillary High pressure Compressor Solenoid Accumulator Stop valve With service port on field piping sid...

Страница 18: ...t 2 1 RZR18 24 30PVJU RZQ18 24 30PVJU 9 1P241839F LEAD WIRE HIGH VOLTAGE Y1S LEAD WIRE HIGH VOLTAGE Y2S LEAD WIRE LOW VOLTAGE R2T LEAD WIRE HIGH VOLTAGE Y3S LEAD WIRE LOW VOLTAGE THERMAL INSULATION TU...

Страница 19: ...tion Control 23 4 1 High Pressure Protection Control 23 4 2 Low Pressure Protection Control 24 4 3 Discharge Pipe Protection Control 25 4 4 Inverter Protection Control 26 5 Other Control 27 5 1 Heatin...

Страница 20: ...Cooling startup control Heating startup control Electronic expansion valve PI control Cooling or heating operation Oil return starting conditions are met Defrost starting conditions are met Operation...

Страница 21: ...on valve Subcooling EV3 Y3E PI control Solenoid valve Hot gas SVP Y2S Y2S OFF OFF This valve turns on with low pressure protection control Solenoid valve Receiver gas discharging SVG Y3S OFF Parts Nam...

Страница 22: ...at constant during heating operation to ensure stable unit performance Cooling Heating RZR18 24 30P RZQ18 24 30P Compressors may operate in a pattern other than those listed in above tables subject t...

Страница 23: ...lload INV Unload 1 36 0Hz 11 80 0Hz 21 140 0Hz 2 39 0Hz 12 86 0Hz 22 146 0Hz 3 43 0Hz 13 92 0Hz 23 152 0Hz 4 47 0Hz 14 98 0Hz 24 158 0Hz 5 52 0Hz 15 104 0Hz 25 164 0Hz 6 52 0Hz 57 0Hz 16 110 0Hz 26 17...

Страница 24: ...EP 1 STEP 0 STEP 8 STEP 7 STEP 6 Cooling STEP 0 STEP 1 STEP 2 STEP 3 STEP 4 STEP 5 STEP 6 STEP 7 STEP 8 M1F 0 rpm 250 rpm 400 rpm 285 rpm 360 rpm 445 rpm 580 rpm 715 rpm 850 rpm Heating STEP 1 STEP 8...

Страница 25: ...nds until Pc Pe 58 psi Outdoor unit fan High pressure 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 expa...

Страница 26: ...and subsequently every 8 hours In addition integrated amount of displaced oil is derived from Tc Te and the compressor load Outdoor unit actuator Oil return preparation operation Oil return operation...

Страница 27: ...the oil returning operation and from the oil returning operation to the operation after oil returning the compressor stops for 1 minute to reduce noise on changing of the four way valve Outdoor Unit A...

Страница 28: ...rom the preparing operation to the defrost operation and from the defrost operation to the operation after defrost the compressor stops for 1 minute to reduce noise on changing of the four way valve O...

Страница 29: ...power on off and to equalize pressure in the refrigerant system Actuator Master unit operation Compressor 124 Hz Outdoor unit fan Fan control Four way valve OFF Main electronic expansion valve EV1 200...

Страница 30: ...dition inverters turn on electricity and capacitors are charged Actuator Operation Compressor OFF Outdoor unit fan OFF Four way valve Keep former condition Main electronic expansion valve EV1 0 pls Ho...

Страница 31: ...essure limited INV upper limit frequency 1 step up from current compressor frequency INV upper limit frequency 1 step up from current error frequency INV upper limit frequency 1 step down from current...

Страница 32: ...When occurring 3 times within 60 min the error code E4 is output Low pressure standby Low pressure limited Pe 10 psi 145 5Hz Upper limit SVP OFF SVP ON Pe 36 psi Inverter upper limit frequency More t...

Страница 33: ...ischarge pipe protection control not limited Keep the current step Inverter frequency 1 step down from current compressor frequency lower limit 57Hz Inverter upper limit frequency 1 step up from curre...

Страница 34: ...equency 1 step up from current compressor frequency Inverter current standby Inverter current X A continues for 3 min Status quo Without conditions X A 13 7 Tb 77 F 12 7 Tb 77 F Inverter current X A I...

Страница 35: ...er will display A3 and the air conditioner will come to an abnormal stop in 5 minutes if the float switch is turned OFF while the cooling thermostat is ON 6 1 2 When the Float Switch is Tripped while...

Страница 36: ...r is determined to have occurred AF is then displayed as operation continues 6 Error residual The remote controller will display A3 and the air conditioner will come to an abnormal stop if the float s...

Страница 37: ...e factory setting position is 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 Not for Multi flow type Draft...

Страница 38: ...he position of the user when the suction air temperature is near the set temperature Ex When cooling Assuming the set temperature in the figure above is 75 F and the suction air temperature has change...

Страница 39: ...temperature has changed from 64 F to 82 F A D This example also assumes there are several other air conditioners the system is off and that temperature changes even when the thermostat is off Suction...

Страница 40: ...ce with the following conditions and is also set in accordance with the conditions given below Conditions for starting freeze up prevention Temperature is 30 F or less for total of 40 minutes or tempe...

Страница 41: ...irection LL Level Level Level Halt Swinging OFF Level Level Level Setting the wind direction OFF Level Level Level Cooling Thermostat of program dry is on Swinging L 1 Swinging Swinging Swinging Setti...

Страница 42: ...ed the operations shown below will be conducted TH2 Temperature detected with the gas thermistor TC High pressure equivalent saturated temperature The fan is not OFF before initiating the hot start LL...

Страница 43: ...ature detected with the gas thermistor TC High pressure equivalent saturated temperature The fan is not OFF before initiating the hot start LL The fan is OFF before initiating the hot start OFF The fa...

Страница 44: ...at Pump Fan normal operation Continues for 5 minutes Continues for 5 minutes Continues for 5 minutes Timer clear Timer clear Timer clear Fan H tap 120 seconds 2 Fan H tap 120 seconds 2 Thermostat OFF...

Страница 45: ...time after the heater turns OFF 3 High pressure condition 4 Liquid pipe temperature condition Condition A Thermostat step 2 ON Heating mode Not during test operation Not during control operation High...

Страница 46: ...tions for this electrical heater are shown below Thermostat OFF Stop operation Thermostat step 1 H P Fan Normal operation Timer count 5 minutes Timer count 5 minutes Timer count 5 minutes Timer clear...

Страница 47: ...Electrical heater setting 01 Electrical heater setting 03 Elimination of Condition A Indoor unit error Stop due to error Indoor unit error Abnormal stop Indoor unit error Remote control thermistor err...

Страница 48: ...fier and it is used for humidifiers locally connected in North America 2 External input ON is an input signal to the X12A terminal on the PCB for additional I O Fan residual operation for Y seconds Th...

Страница 49: ...nal to the X11A terminal on the PCB for additional I O 3 To stop the compressor while the economizer is in operation to save energy 4 Remote control ON signal Contact output which shows the operating...

Страница 50: ...cedure and Outline 43 1 2 Operation when Power is Turned ON 46 2 Outdoor Unit PCB Layout 47 3 Field Setting 48 3 1 Field Setting from Remote Controller 48 3 2 Field Setting from Remote Controller Indo...

Страница 51: ...han 200 230V circuit Are the setscrews of wiring not loose Is the electrical component box covered with an insulation cover completely Is pipe size proper The design pressure of this product is 478 ps...

Страница 52: ...hine E4 The stop valve of outdoor unit is left closed Open the gas side stop valve and the liquid side stop valve Insufficient refrigerant Check if the additional refrigerant charge has been finished...

Страница 53: ...hat the indoor outdoor units can be operated normally When an abnormal noise due to liquid compression by the compressor can be heard stop the unit immediately and then on the crankcase heater to heat...

Страница 54: ...the addition cannot be recognized In this case the unit cannot be run for up to 12 minutes to automatically set the address indoor outdoor address etc Status Outdoor unit Test lamp H2P Blinks Can also...

Страница 55: ...rminal for transmission use HAP MODE L N O P DEMAND HWL k TEST l IND MASTER SLAVE A2P A1P 4 DIP switch F1 F2 F1 F2 ON OFF TO IN D UNIT TO OUT D UNIT 1 Service monitor LED Green This LED blinks while i...

Страница 56: ...the button N for 4 seconds or more and the FIELD SETTING 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 hav...

Страница 57: ...CODE NO is displayed as which means it can be changed When SECOND CODE NO is displayed as there is no function 5 Highlight SECOND CODE NO of the FIRST CODE NO to be changed and select desired SECOND...

Страница 58: ...details related to the indoor unit see installation manual shipped with the indoor unit 10 Backlight goes out and Checking the connection Please standby is displayed for initialization After the initi...

Страница 59: ...mode No with the button 3 Pressing the button select the first code No 4 Pressing the button select the second code No 5 Press the timer button and check the settings 6 Press the button to return to t...

Страница 60: ...5 Remote sensor and remote controller thermistor Both Remote thermistor Remote controller thermistor 3 Filter sign display ON OFF 7 4 step thermostat processing 11 21 3 5 Electric heater setting Heat...

Страница 61: ...ermistor 3 Filter sign display 7 4 step thermostat processing 11 21 3 Electric heater setting 5 Electric heater step setting 12 22 0 Optional accessories output selection 1 ON OFF Input from outside 2...

Страница 62: ...Thermostat is OFF By setting to Set Fan Speed you can switch the fan speed to the set fan speed when the heating thermostat is OFF Since there is concern about draft if using fan speed up when thermos...

Страница 63: ...ition 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 taken in the following circum...

Страница 64: ...tting 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 centralized remote controller on...

Страница 65: ...nified operation individual operation by centralized remote controller or operation controlled by timer Unified OFF individual stop by centralized remote controller or timer stop ON OFF control imposs...

Страница 66: ...or buttons on PCB Factory setting There are the following 3 setting modes 1 Setting mode 1 H1P OFF Initial status when normal Also indicates during abnormal 2 Setting mode 2 H1P ON Used to modify the...

Страница 67: ...e modes can be changed as follows Check item selection Set Contents display Monitor mode Press BS3 RETURN 1 time Press BS3 RETURN 1 time Setting item selection Set Setting mode 2 Set Select mode with...

Страница 68: ...perating conditions Normal Abnormal In check operation Normally Setting mode 1 is set In case of other status press MODE button BS1 1 time and set to Setting mode 1 The current state is displayed Disp...

Страница 69: ...peration Low night noise operation setting is also required 27 Low night noise operation end setting Sets ending time of low night noise operation Low night noise setting is also required 29 Capacity...

Страница 70: ...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 16 Setting of hot water heater k h k h h h h OFF khhhhhk ON khhhhkh 21 Refrigerant recovery vacuuming mode...

Страница 71: ...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 press the MODE button BS1 when in Setting mo...

Страница 72: ...2 or Mode 3 for set item No 25 Setting of external low noise level 4 If necessary while in Setting mode 2 set the setting condition for the set item No 29 Setting of capacity precedence to ON If the...

Страница 73: ...start setting Time set with Low night noise end setting Operation sound level set with Low night noise setting Set with Low night noise start setting Factory setting is PM 10 00 Set with Low night noi...

Страница 74: ...nal control adaptor for outdoor unit is not required 1 While in Setting mode 2 make setting of the set item No 32 Setting of alternate demand to ON 2 While in Setting mode 2 select the set item No 30...

Страница 75: ...n the Normal demand setting is set to ON OFF has been set at factory the power consumption can be set with the Demand 1 level setting 70 of rated power consumption has been set at factory Power consum...

Страница 76: ...ss the BS3 RETURN button 2 times Returns to 5 Press the BS1 MODE button 1 time Returns to the setting mode 1 and turns H1P off ON OFF l Blink 1 2 3 Factory setting Setting No Setting contents Setting...

Страница 77: ...ction attached to the refrigerant recovery unit for more detail 3 Press Mode button BS1 once and reset Setting Mode 2 3 4 5 Setting of Vacuuming Mode In order to perform vacuuming operation at site fu...

Страница 78: ...for 5 seconds 10 seconds to 10 minutes LED display H1P H7P k ON l BLINK h OFF hhkhhhh hlhhhhk Pressure equalizing Step 1 20 seconds to 2 minutes 10 minutes To 30 seconds hlhhhkh Cooling start control...

Страница 79: ...ger Gas Pipe Thermistor Abnormality 101 3 11 Suction Air Thermistor Abnormality 102 3 12 Remote Sensor Abnormality 103 3 13 Room Temperature Thermistor in Remote Controller Abnormality 104 3 14 Outdoo...

Страница 80: ...t Shortage 135 3 38 Power Supply Voltage Abnormality 136 3 39 Check Operation not Executed 138 3 40 Transmission Error between Indoor Units and Outdoor Units 139 3 41 Transmission Error between Remote...

Страница 81: ...heat 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 wil...

Страница 82: ...re reaches the set degree the outdoor unit will stop while the indoor unit is brought to fan LL operation so that no one gets cold air The fan LL operation is also enabled while in oil return mode in...

Страница 83: ...Normal operation 12 The system emits dust The system emits dust after being stopped and then restarted after an extended time Dust which has deposited on the inside of indoor unit is blown out from t...

Страница 84: ...hers Field setting mode Depress the Inspection Test Operation button for more than 4 seconds Service mode Service data can be obtained Error code history Temperature data of various sections Service s...

Страница 85: ...r error code and error 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 5 seconds or mor...

Страница 86: ...Operation Status Display Abnormal shutdown The system stops operating The operation lamp green starts to blink The message Error Press Menu button is displayed and blinking at the bottom of the scree...

Страница 87: ...he operation in step 4 until a buzzer remains ON The continuous buzzer indicates that the error code is confirmed Continuous beep No abnormality 3 Press the MODE selector button The left 0 left digit...

Страница 88: ...on is pressed 1 Press INSPECTION TEST button If no button is pressed for 1 minute equipment returns to normal status If no button is pressed for 1 minute equipment returns to normal status When MODE s...

Страница 89: ...P Normal display No display 0 L 0 Error code blinks when an error occurs Inspection mode Press the button Press the button Press the button Press the button Indoor unit model code display Outdoor uni...

Страница 90: ...ime mode For wireless remote controller button 3 Make the settings required for each mode Modes 41 44 45 In case of Mode 44 45 press the button to be able to change setting before setting work LCD cod...

Страница 91: ...he 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 Individual setting Set the...

Страница 92: ...1 operation 9 Outdoor comp 2 operation 3 Indoor Unit Status 1 Unit No Select the Unit No you want to check 2 FAN Fan tap 3 FLAP Swing fixed 4 Speed Fan speed rpm 5 EV Degree that electronic expansion...

Страница 93: ...he forced defrost operation 2 Forced defrost OFF Disables the forced defrost operation 6 Error Display 1 Display Warning ON Displays a warning on the screen if an error occurs 2 Display Warning OFF No...

Страница 94: ...trol 115 F6 Refrigerant Overcharged 116 H3 High Pressure Switch Abnormality 117 H7 Outdoor Unit Fan Motor Signal Abnormality 118 H9 Outdoor Air Thermistor Abnormality 119 J3 Discharge Pipe Thermistor...

Страница 95: ...f discharge pipe temperature Defective Tdi sensor short J3 Defective sensor of suction pipe temperature Defective Ts1 sensor short J5 Defective Ts2 sensor short Defective sensor of heat exchanger temp...

Страница 96: ...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 l h h L1 l l h h l l l l h h h l l h h h h l h h h h l h h h l l h h h h l h h h l l h h h l l h h h h l h h l h l h h h l l h h h h l h h l l l h...

Страница 97: ...al ON OFF terminal Supposed Causes Actuation of external protection device Improper field setting Defective indoor unit PCB Troubleshooting Caution Be sure to turn off the power switch before connecti...

Страница 98: ...E PROM Type of nonvolatile memory Maintains memory contents even when the power supply is turned OFF Supposed Causes Defective indoor unit PCB External factor Noise etc Troubleshooting YES Caution Be...

Страница 99: ...tection Error Decision Conditions When rise of water level is not a condition and the float switch goes OFF Supposed Causes 208 230V power supply is not provided Defective float switch or short circui...

Страница 100: ...float switch functions normally The float switch contact is forming a short circuit continuity check with the connector disconnected Becomes normal when the connector of the indoor unit PCB is short...

Страница 101: ...output voltage to the fan is maximum Supposed Causes Fan motor lock Disconnected or wrong wiring between fan motor and PCB Troubleshooting Is the wiring from the fan motor securely connected to conne...

Страница 102: ...witch when the motor turns Error Decision Conditions When ON OFF of the micro switch for positioning cannot be reversed even though the swing flap motor is energized for a specified amount of time abo...

Страница 103: ...in 30 seconds of turning on again The limit switch functions normally The connecting cable is short circuited or disconnected The connecting cable has no continuity Is power supply 208 230V provided B...

Страница 104: ...on valve coil Defective indoor unit PCB Defective connecting cable Troubleshooting The electronic expansion valve is connected to X7A of the indoor unit PCB Normal when coil check 1 of the electronic...

Страница 105: ...c expansion valve coil Discount the electronic expansion valve from the PCB and check the continuity between the connector pins Normal Continuity No continuity Pin No 1 White 2 Yellow 3 Orange 4 Blue...

Страница 106: ...ation while the compressor is in non operation Error Decision Conditions The float switch changes from ON to OFF while the compressor is OFF Supposed Causes Defective drain pipe upward slope etc Defec...

Страница 107: ...cision Conditions When the capacity code is not saved to the PCB and the capacity setting adaptor is not connected When a capacity that does not exist for that unit is set Supposed Causes The capacity...

Страница 108: ...pipe Defective indoor unit PCB Troubleshooting Note Connector and indoor unit PCB Refer to Thermistor Resistance Temperature Characteristics table on P 161 Connector is connected to the connector of...

Страница 109: ...pipe Defective indoor unit PCB Troubleshooting Note Connector and indoor unit PCB Refer to Thermistor Resistance Temperature Characteristics table on P 161 Connector is connected to the connector of t...

Страница 110: ...stor for suction air Defective indoor unit PCB Troubleshooting Note Connector and indoor unit PCB Refer to Thermistor Resistance Temperature Characteristics table on P 161 Connector is connected to th...

Страница 111: ...suction air Defective indoor unit PCB Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table on P 161 Caution Be sure to turn off the power switch before connecting or disco...

Страница 112: ...ates continuously Supposed Causes Defective room temperature thermistor in remote controller Defective remote controller PCB Troubleshooting Note 1 How to delete history of error codes Press the ON OF...

Страница 113: ...d Causes Defective outdoor unit PCB Defective fan motor External factor Noise etc Troubleshooting External factor Noise etc Is normal reset possible YES NO Turn the power supply OFF once and then back...

Страница 114: ...sure protection switch opens Error Decision Conditions Error is generated when the S1PH High pressure switch activation count reaches the number specific to the operation mode Reference Operating pres...

Страница 115: ...re sensor Is the pressure detected with the PCB normal 2 Replace the main PCB The high pressure sensor is normal and the pressure detected with the PCB is also normal The high pressure has really beco...

Страница 116: ...Q Method of Error Detection Abnormality is detected by the pressure value with the low pressure sensor Error Decision Conditions Error is generated when the low pressure is dropped during compressor o...

Страница 117: ...e low pressure has really become 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...

Страница 118: ...ignal from UVW line connected between the inverter and compressor and the error is detected when any abnormality is observed in the phase current waveform Error Decision Conditions This error will be...

Страница 119: ...rement should be made while the frequency is stable Replace the inverter PCB Replace the inverter compressor Is the stop valve open Are the relay wires to the compressor correct Is the connection of U...

Страница 120: ...The harness connector between fan motor and PCB is left in disconnected or defective connector Fan does not run due to foreign matters tangled Clearing condition Operate for 5 minutes normal Troublesh...

Страница 121: ...ble Models RZR RZQ Method of Error Detection Check disconnection of connector Check continuity of electronic expansion valve coil Error Decision Conditions Error is generated under no common power sup...

Страница 122: ...pansion valve coil is checked Return to normal Make measurement of resistance between the connector pins and then make sure the resistance falls in the range of 40 to 50W YES Caution Be sure to turn o...

Страница 123: ...efective connection of discharge pipe temperature thermistor Defective outdoor unit PCB Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table on P 162 Are the characteristic...

Страница 124: ...Disconnection of outdoor air thermistor Disconnection of heat exchanger deicer thermistor Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table on P 161 Caution Be sure to t...

Страница 125: ...ess Defective connection of high pressure switch connector Defective outdoor unit PCB Disconnected lead wire Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnec...

Страница 126: ...or connection cable Inverter PCB abnormality Troubleshooting Note 1 Disconnect connector and measure the following resistance Is the fan motor connector X106A or X107A connected to PCB correctly Is th...

Страница 127: ...en circuit Supposed Causes Defective thermistor R1T for outdoor air Defective outdoor unit PCB A1P Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table on P 161 Connector i...

Страница 128: ...mistor is detected Supposed Causes Defective thermistor R2T for outdoor unit discharge pipe Defective outdoor unit PCB A1P Troubleshooting Refer to Thermistor Resistance Temperature Characteristics ta...

Страница 129: ...ed Causes Defective thermistor R3T R5T for outdoor unit suction pipe Defective outdoor unit PCB A1P Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table on P 161 Connector...

Страница 130: ...or is detected Supposed Causes Defective thermistor R4T for outdoor unit heat exchanger Defective outdoor unit PCB A1P Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table...

Страница 131: ...y JA Applicable Models RZR RZQ Method of Error Detection The error is detected from the pressure detected by the high pressure sensor Error Decision Conditions When the high pressure sensor is short c...

Страница 132: ...unit PCB A1P The relationship between the VH and high pressure is normal see 1 when voltage is measured between X17A pins 1 and 3 of outdoor unit PCB A1P Be sure to turn off the power switch before c...

Страница 133: ...y JC Applicable Models RZR RZQ Method of Error Detection The error is detected from the pressure detected by the low pressure sensor Error Decision Conditions When the low pressure sensor is short cir...

Страница 134: ...tween the VL and low pressure is normal see 1 when voltage is measured between X18A pins 2 and 3 of outdoor unit PCB A1P Be sure to turn off the power switch before connecting or disconnecting the con...

Страница 135: ...rvoltage sensor Error Decision Conditions In case of overcurrent OCP during waveform output When the current sensor errors during synchronized operation When overvoltage occurs in SP PAM In case of IG...

Страница 136: ...pening blocked Troubleshooting The radiation fin temperature is supposed to have risen to 180 F or more Is the connector X111A of the radiation fin thermistor properly connected to the outdoor unit PC...

Страница 137: ...is displayed when the inverter output voltage is checked by tester The compressor s coil is disconnected or the insulation is defective Inverter output voltage check if Inverter output voltage is imba...

Страница 138: ...of Error Detection The error is detected from the current flowing to power transistor into voltage with CT1 DC current sensor Error Decision Conditions When compressor overload except for when startup...

Страница 139: ...n L8 blinks again Be sure to turn off the power switch before connecting or disconnecting the connector or parts may be damaged Output current check Caution Compressor overload Inspection of the compr...

Страница 140: ...between high and low pressure before startup is above 30psi Inverter output voltage check Inverter output voltage is not balanced Normal if within 5V Must be measured when frequency is stable After t...

Страница 141: ...control and inverter PCB Insufficient contact in wiring Defective outdoor unit PCB Defective outdoor unit fan motor External factor Noise etc Defective fan motor connector contact Troubleshooting Is...

Страница 142: ...Supposed Causes Defective radiation fin temperature sensor Defective outdoor unit PCB A1P External factor Noise etc Troubleshooting Be sure to turn off the power switch before connecting or disconnect...

Страница 143: ...In heating operation When the electronic expansion valve opens fully and the suction superheat is large more than 68 F continuously for 30 minutes Supposed Causes The stop valve is not opened Insuffi...

Страница 144: ...detected according to the voltage of main circuit capacitor built in the inverter and power supply voltage Error Decision Conditions When the abnormal voltage of main circuit capacitor built in the i...

Страница 145: ...verter power transistor Replace the inverter PCB Observe the conditions of the PCB In the case of a serious failure a compressor failure may cause the failure of the PCB Even if the PCB is replaced it...

Страница 146: ...on Conditions The error 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 u...

Страница 147: ...thod of Error Detection Micro computer checks if transmission between indoor and outdoor units is normal Error Decision Conditions When transmission is not carried out normally for a certain amount of...

Страница 148: ...e power for the optional accessory supplied from between 1 and 2 on terminal block X2M Is HAP on the outdoor PCB blinking Is HAP blinking Request an improvement to make the power supply voltage fall w...

Страница 149: ...Noise etc Replace the fuse Is the output voltage normal Replace the outdoor unit inverter PCB Does U4 error reoccur Replace the outdoor unit inverter PCB After turning OFF the power supply correctly...

Страница 150: ...it PCB Defective remote controller PCB External factor Noise etc Troubleshooting Be sure to turn off the power switch before connecting or disconnecting the connector or parts may be damaged Caution Y...

Страница 151: ...Connection between sub remote controllers Defective remote controller PCB Troubleshooting Controlling with 2 remote controller SS 1 switch on remote controller PCB is turned to MAIN Both SS 1 switches...

Страница 152: ...hod of Error Detection Micro computer checks if transmission between indoor unit and centralized remote controller is normal Error Decision Conditions When transmission is not carried out normally for...

Страница 153: ...connected or wired incorrectly Is the main controller s connector for setting main controller disconnected Is the group No of error indoor units set Caution Be sure to turn off the power switch before...

Страница 154: ...peration Defective indoor unit PCB 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 than 12 ho...

Страница 155: ...onitorPCB Are the electrical characteristics normal In the connector properly connected Are the thermistor resistance characteristics normal Is the pressure value checked with the Service Checker corr...

Страница 156: ...utdoor unit electronic expansion valve Defective valve coil Defective valve body Are the coil resistance and insulation normal In heating If the outdoor unit electronic expansion valve excessively thr...

Страница 157: ...oor 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 Remove the wire connecting th...

Страница 158: ...door Unit 151 1 2 Indoor Unit 153 2 Wiring Diagrams for Reference 155 2 1 Outdoor Unit 155 2 2 Indoor Unit 157 3 Thermistor Resistance Temperature Characteristics 161 4 Pressure Sensor 163 5 Precautio...

Страница 159: ...n valve Field piping Field piping 3 8 5 8 Stop valve Indoor unit with service port 5 16 flare Fusible plug Solenoid valve Solenoid valve Capillary tube Four way valve Check valve High pressure sensor...

Страница 160: ...Electronic expansion valve Service port Capillary tube Pressure regulating valve Heat exchanger Service port Low pressure sensor Solenoid valve Capillary tube Capillary tube High pressure switch Oil s...

Страница 161: ...24PVJU C 4D024460E R1T Thermistor for suction air temperature R2T Thermistor for liquid line temperature R3T Thermistor for gas line temperature in M Heat exchanger Fan Filter Filter Electronic expans...

Страница 162: ...TQ24PAVJU Refrigerant pipe connection port diameters C 4D068194 M Fan Heat exchanger Filter Electronic expansion valve Filter Field piping Liquid pipe connection port Gas pipe connection port Field pi...

Страница 163: ...T 3 15A 250V PILOT LAMP SERVICE MONITOR ORANGE OPERATION PILOT LAMP SERVICE MONITOR GREEN INV PILOT LAMP SERVICE MONITOR GREEN MAGNETIC CONTACTOR MAGNETIC RELAY Y1S MAGNETIC RELAY Y2S MAGNETIC RELAY...

Страница 164: ...UIT BOARD MAIN PRINTED CIRCUIT BOARD SERVICE PRINTED CIRCUIT BOARD NOISE FILTER PRINTED CIRCUIT BOARD C H SELECTOR BRANCH SELECTOR BUTTON MODE SET RETURN TEST RESET CAPACITOR DIP SWITCH CRANKCASE HEAT...

Страница 165: ...FOR OPTIONAL PARTS X18A X23A 208 230V 60Hz S1L A3P A2P R1TR2TR3T A1P X1M X2A H1P SS1 L1 L2 t t t H2P BS1 A1P REDBLU H3P SS2 X31A X23A X8A X13A X11A X12A H4P X1A X1A F1U X18A HAP X3A X30A PNK T1R T2 T2...

Страница 166: ...D CIRCUIT BOARD PUSH BUTTON ON OFF LIGHT EMITTING DIODE ON RED LIGHT EMITTING DIODE TIMER GREEN LIGHT EMITTING DIODE FILTER SIGN RED WIRED REMOTE CONTROLLER RECEIVER DISPLAY UNIT ATTACHED TO WIRELESS...

Страница 167: ...UNIT ATTACHED TO WIRELESS REMOTE CONTROLLER SIDE FRONT M MSW MS 3 CONTROL BOX Y1E M1S INDOOR UNIT NOTES M1F CONNECTOR FOR OPTIONAL PARTS WIRED REMOTE CONTROLLER CONNECTOR FLOAT SWITCH CONNECTOR GROUP...

Страница 168: ...IZED REMOTE CONTROLLER NOTE 2 WIRED REMOTE CONTROLLER OPTIONAL ACCESSORY ELECTRIC HEATER ELECTRIC HEATER HKR 06 HKR 08C HKR 10C AFTER INSTALLING OPTIONAL HEATER KIT MARK A X IN THE MARK ACCORDING TO E...

Страница 169: ...46 4 8 44 05 136 4 58 5 74 48 2 9 41 95 138 2 59 5 14 50 0 10 39 96 140 0 60 4 96 51 8 11 38 08 141 8 61 4 79 53 6 12 36 30 143 6 62 4 62 55 4 13 34 62 145 4 63 4 46 57 2 14 33 02 147 2 64 4 30 59 0...

Страница 170: ...92 249 8 121 7 26 71 6 22 228 05 161 6 72 32 78 251 6 122 7 06 73 4 23 218 24 163 4 73 31 69 253 4 123 6 87 75 2 24 208 90 165 2 74 30 63 255 2 124 6 69 77 0 25 200 00 167 0 75 29 61 257 0 125 6 51 78...

Страница 171: ...or High Pressure PH Low Pressure PL PH 1 38VH 0 69 PL 0 57VL 0 28 PH High pressure MPa PL Low pressure MPa VH Output Voltage High Side VDC VL Output Voltage Low Side VDC Output Voltage VH VL Detected...

Страница 172: ...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 10 19716 kgf cm2 1...

Страница 173: ...7 23 34 25 56 27 95 30 51 33 26 36 19 39 31 42 64 46 19 49 96 53 97 58 22 62 72 67 48 72 51 77 83 83 44 89 36 95 59 102 14 109 03 116 26 123 86 131 82 140 16 148 90 158 04 167 60 177 59 188 02 198 90...

Страница 174: ...nd R 407C Charging cylinder Weighting instrument used for HFCs Gas detector The same tool can be used for HFCs Vacuum pump pump with reverse flow preventive function To use existing pump for HFCs vacu...

Страница 175: ...n margin of 0 to 0 02in was provided for flaring For R 410A air conditioners perform pipe flaring with a pipe extension margin of 0 04 to 0 06in For clutch type only Conventional tool with pipe extens...

Страница 176: ...vacuum 50 l min 50Hz Select a vacuum pump which is able to keep the vacuum degree 60 l min 60Hz of the system in excess of 14 6 psi 5 torr 755 mmHg Suction port UNF7 16 20 1 4 Flare UNF1 2 20 5 16 Fl...

Страница 177: ...o not contain chlorine new tester detects hydrogen 5 Refrigerant oil Specifications Contains synthetic oil therefore it can be used for piping work of every refrigerant cycle Offers high rust resistan...

Страница 178: ...259 kg cm2 Available with and without hand operate valve that prevents refrigerant from outflow Differences Pressure proof hose Change in service port diameter Use of nylon coated material for HFC re...

Страница 179: ...r New Refrigerant R 410A Appendix 171 Regarding purchasing of service tools please contact following address Daikin U S Corporation Dallas Office 1645 Wallace Dr Ste 110 Carrollton TX 75006 Tel 1 972...

Страница 180: ...install the outdoor unit close to the sea shore contact your local distributor Organization DAIKIN INDUSTRIES LTD AIR CONDITIONING MANUFACTURING DIVISION Scope of Registration THE DESIGN DEVELOPMENT...

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