![Daikin RZQG71L9V1B [208/215] Check 9](/img/pdf.png)
Daikin RZQG71L9V1B [208/215] Check 9
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Troubleshooting by Remote Controller ESIE15-13C
194 Service Diagnosis
Clogged Points
Temperature differences must occur before or after the clogged points!
Check points Check factor Causes Remedies
1 Around
expansion
mechanism
Temperature
difference
Dust
Choked moisture
Reduced effective pipe
diameter due to adherent
contamination, etc.
Replace the electronic
expansion valve.
2 Accumulator Frosting Choked moisture Blow a nitrogen gas, and
then replace the
refrigerant.
3 Distributor Temperature
difference
Dust
Choked moisture
Reduced effective pipe
diameter due to adherent
contamination, etc.
Replace the heat
exchanger or distributor.
4 Field piping Temperature
difference
Collapsed pipe Replace the pipe.
5 Stop valve Temperature
difference
The stop valve is not fully open. Open the stop valve fully.
CHECK 9
ACC
Indoor Unit Outdoor Unit
COMP
1
2
33
4 5
Содержание
- Gqi eco series 1
- Heat pump r 410a 50hz 1
- Service manual 1
- Function details 2 3
- Function of main components and thermistors 8 2 operation flow chart 0 3
- Gqi eco series heat pump r 410a 50hz 3
- Inspection mode 5 3
- Introduction v 3
- Model names of indoor outdoor units 2 outlook outdoor units 3 operating range 3
- Part 1 general information 3
- Part 2 remote controller 3
- Part 3 function and control 7 3
- Service mode 0 3
- Wired remote controller 0 3
- Wireless remote controller 7 3
- Emergency operation 2 4
- Field setting from outdoor unit pcb 1 4
- Field setting from remote controller 1 4
- Maintenance inspection 7 4
- Part 4 field setting 7 4
- Part 5 service diagnosis 5 4
- Symptom based troubleshooting 9 4
- Test operation 8 4
- Troubleshooting by led indications 17 4
- Troubleshooting by remote controller 18 4
- Part 6 appendix 97 5
- Piping diagrams 98 5
- Thermodynamic characteristic of r 410a 00 4 removing the switchbox 01 5
- Wiring diagrams 99 5
- Cautions regarding safety of workers 7
- Introduction 7
- Safety cautions 7
- Version log 7
- Warning 7
- Caution 8
- Warning 8
- Caution 9
- Cautions regarding safety of users 10
- Warning 10
- Caution 11
- Warning 11
- Caution 12
- Icons are used to attract the attention of the reader to specific information the meaning of each icon is described in the table below 12
- Used icons 12
- Preface 13
- Model names of indoor outdoor units 2 outlook outdoor units 3 operating range 15
- Part 1 general information 15
- For edp applications 16
- General information 16
- Model names of indoor outdoor units 16
- Model names of indoor outdoor units esie15 13c 16
- Multi combination possibilities p pair 2 twin 3 triple 4 double twin 16
- Outlook outdoor units 18
- Cooling 19
- Heating 19
- Indoor temp c db 19
- Indoor temp c wb 19
- Operating range 19
- Operation range 19
- Outdoor temp c db 19
- Outdoor temp c wb 19
- Classic 20
- Inspection mode 5 23
- Part 2 remote controller 23
- Service mode 0 23
- Wired remote controller 0 23
- Wireless remote controller 7 23
- Applicable models 24
- Brc1d528 24
- 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 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 24
- Names and functions 24
- On off button press the on off button to start or stop the system 2 operation lamp the operation lamp lights up during operation or blinks if an error occurs 3 operation mode icon these icons indicate the current operation mode fan dry automatic cooling heating 4 ventilation mode icon these icons indicate the current ventilation mode hrv only automatic heat exchange bypass 5 ventilation icon 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 icon indicates that the air cleaning unit option is operational 7 leave home icon the leave home icon shows the status of the leave home function 24
- Wired remote controller 24
- Brc1e52 53 26
- Brc1d528 28
- Brc1e52 53 28
- Main sub setting when using 2 remote controllers 28
- Setting 28
- Situation 28
- Brc1d528 29
- Centralized control group no setting 29
- Brc1e52 53 30
- 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 30
- 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 30
- Applicable models 31
- Names and functions 31
- Receiver 31
- Wireless remote controller 31
- Introduction 33
- Main sub setting 33
- Setting the address for the receiver 33
- To set the wireless remote controller you have to set the address for the receiver of the wireless remote controller the wireless remote controller 33
- 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 33
- Brc1d528 34
- Display service data 34
- Service mode 34
- Service setting 35
- Brc1e52 53 36
- Display service data 36
- Brc1d528 39
- Esie15 13c inspection mode 39
- Inspection mode 39
- Note inspection mode is not available for brc1e51a7 39
- Remote controller 25 39
- Brc1e52 53 40
- Function details 2 41
- Function of main components and thermistors 8 2 operation flow chart 0 41
- Part 3 function and control 41
- Function and control 42
- Function of main components and thermistors 42
- Function of main components and thermistors esie15 13c 42
- Notes 1 the pipes between the branch and the indoor units should have the same size as the indoor connections 2 the check valve is only present in following models rzqg71l rzqsg100l and rzqsg125l 42
- Rzqg l9v1 pair application 42
- Cooling dry operation 44
- Function and control 44
- Operation flow chart 44
- Operation flow chart esie15 13c 44
- Esie15 13c operation flow chart 45
- Function and control 31 45
- Heating operation 45
- Function details 46
- Indoor unit 46
- Set temperature and control temperature 46
- Thermostat control 46
- 1ºc thermostat off dry operation 47
- Cooling dry operation normally drain pump on thermostat on off 47
- Drain pump control only for fcqg fcqhg 47
- In dry operation 47
- 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 47
- Swing flaps operate as shown in the table below 47
- Swing pattern selection 47
- Switchable fan speed 47
- 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 47
- Tr 13ºc 47
- ºc thermostat off dry operation 47
- ºc tro 47
- Δ t 2 ºc 47
- Δ t 2ºc 47
- Control when the operation mode is set to auto 48
- Dew condensation prevention control 48
- Dew condensation prevention control setting of louvers cancelled activated 48
- Fcqg fcqhg when indoor unit humidity is high during the operation the moving range of louvers is limited 48
- 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 48
- Function and control 48
- Function details esie15 13c 48
- Heating when the following condition consists by mounting the adaptor for wiring pcb the drain pump is turned on 48
- Horizontal blade is set to downward flow p3 or p4 cooling operation compressor operation continues for 30 minutes 48
- P0 p0 p1 48
- P1 p1 p1 48
- P2 p2 p2 48
- P3 p3 p3 48
- P4 p4 p4 48
- Setting the operation mode to auto with the remote controller the unit is controlled regarding the contents shown below 48
- Starting condition 48
- Swing p0 p4 p1 p4 48
- The operation of louvers while this control is activated is as shown below 48
- Defrost control 49
- Draft avoidance control 49
- Freeze up prevention control 49
- Monitoring control 49
- Abnormal stop 50
- Outdoor unit 50
- Restart standby 50
- To prevent compressor from frequent on off and equalize pressure in refrigerant line conducts forced thermostat off for 3 minutes after compressor stopping moreover outdoor unit fan conducts residual operation for a period of time to expedite equalization and prevent refrigerant from entering in evaporator 50
- 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 50
- 1 hour or more after turning off the compressor outdoor air temperature is not declining discharge pipe temperature 40 c 51
- 6 hours or less after turning on the power 51
- 6 hours or more after turning on the power 51
- 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 51
- C ending condition outdoor air temperature 20 c 51
- Compressor stopping 51
- Ending conditions 51
- Esie15 13c function details 51
- Function and control 37 51
- Operation of thermostat is established 51
- Outdoor unit fan control during heating thermostat off 51
- Preheating operation control 51
- Starting conditions 51
- Starting control 51
- When compressor start up the starting frequency is fixed for specified period of time at low frequency to prevent returning of refrigerant 51
- Based on the difference between the set temperature by remote controller and indoor unit suction air temperature the thermo is turned on and off t indoor suction air temperature temperature set by remote controller cooling t temperature set by remote controller indoor suction air temperature heating 52
- Room thermostat control 52
- Thermostat off condition 52
- Compressor step 53
- Cooling 53
- Depending on t cool and the cooling load the target evaporating temperature will be a value between 2 c and 20 c 53
- Depending on t heat and the heating load the target condensing temperature will be a value between 42 c and 54 c for rzqg100 140l 42 c and 50 c 53
- Heating 53
- Maximum frequency in cooling 53
- T cool remote controller set temperature indoor return air temperature 53
- T heat indoor return air temperature remote controller set temperature 53
- The compressor operation frequency is controlled in order to keep a constant evaporation temperature in cooling and a constant condensing temperature in heating 53
- Actual heat exchanger outlet subcooling degree the electronic expansion valve will close target heat exchanger outlet subcooling degree 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 54
- General electronic expansion valve control 54
- Hot start control only in heating operation 54
- 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 54
- 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 55
- Esie15 13c function details 55
- Function and control 41 55
- In order to prevent abnormal low pressures in the system the below control function will be activated 55
- Low pressure protection control 55
- Night time quiet operation 55
- 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 starts 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 55
- Heating control at high outdoor air temperature 56
- High pressure protection control 56
- Esie15 13c function details 57
- Function and control 43 57
- 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 57
- Suction pipe superheat protection control only in heating operation 57
- 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 58
- Capacitor electric discharge control 58
- Discharge pipe temperature protection control 58
- 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 58
- Electronic expansion valve opening degree control td compressor discharge pipe temperature c 58
- Electronic expansion valve opening degree lower limit 10 pulses cooling for 2 minutes heating for 1 minute 58
- Electronic expansion valve opening degree lower limit 5 pulses cooling for 2 minutes heating for 1 minute 58
- Function and control 58
- Function details esie15 13c 58
- Normal control 58
- Rzqg71l rzqg100 140l a c 105 c 105 c b c 125 c 120 c c minutes 15 minutes 15 minutes 58
- Td 100 c 58
- Td 95 c td 90 c td 80 c 58
- Inverter current protection control 59
- Restricts compressor operation frequency to prevent compressor from tripping due to inverter overcurrent 59
- Thermostat off due to outdoor air temperature only in heating operation 59
- Controls compressor and outdoor unit fan under low outdoor air temperature condition to secure pressure difference between high and low pressure 60
- Frequency restriction 60
- Function and control 60
- Function details esie15 13c 60
- Hp high pressure lp low pressure ta outdoor air temperature tfin inverter fin temperature 60
- Low outdoor air temperature control in cooling operation 60
- Freeze up prevention control 61
- Oil recovery operation 61
- Piping and wiring incompatibility detection control 61
- Protection control by overall current 61
- Shortage of refrigerant detection control 61
- 5 c 40 minutes 2 hours 6 hours outdoor air temperature 5 c 40 minutes 6 hours 8 hours 62
- Defrost conditions 62
- Defrost operation 62
- 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 62
- Defrost will start when the following conditions have been realized 62
- Function and control 62
- Function details esie15 13c 62
- Integrated compressor running time is 25 minutes or more since the completion of the previous defrost operation or defrost upper limit time a is met outdoor unit heat exchanger temperature is within the defrost request area 62
- Starting conditions 62
- When in heating mode a defrost operation will be conducted in order to avoid ice formation on the outdoor unit heat exchanger 62
- When quick defrost starting is set factory setting when slow defrost starting is set 62
- Defrost control 63
- Defrost ending conditions 63
- 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 63
- 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 63
- Emergency operation 63
- No transmission is performed between indoor and outdoor unit during cooling the cycle of operation for 20 minutes and stop for 10 minutes is repeated during heating defrost is performed once every one hour under other conditions the same control as the normal control is performed 63
- Outdoor unit fan control when frost is adhered 63
- Simulated operation function 64
- 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 65
- Make sure that the initial operation after installation is performed by the cooling operation 65
- Note in the 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 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 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 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 pc 65
- Test operation control 65
- Until the test run is complete the heating operation cannot be performed 65
- 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 65
- Change field setting 33 in mode 2 with following values for tes lower limit value 66
- Change field setting 34 to change the tcs upper limit value now this value is controlled by pe and no field settings 66
- Current setting te lower limit 66
- Currently it is possible to modify the lower limit of the te value with field setting especially used for edp application 66
- Factory setting 66
- However these values are not high enough for high sensible mode 66
- Improved comfort in cooling by te control 66
- Improved cop in heating by tc control 66
- Most likely these values however protection control of unit has highest priority the highest value between setting 11 and 33 will overrule do not change the value of setting 33 when edp setting is set for whc see weather depending control 66
- New higher setting te lower limit 66
- Similar as high sensible mode in vrv 66
- The cop could be increased with reduction of capacity by lowering the tcs upper limit values 66
- The normal protection control has a higher priority than the new tcs upper limits for whh see weather depending control 66
- Upper limit tc control 66
- Weather depending control 66
- When the tes and tcs values are changed depending on the ambient outdoor temperature the cop and eer can be increased in cooling mode if ambient temperatures are low the requirement for quick cooling is small this way the eer can be improved by increasing the tes lower limit values in heating mode if ambient temperatures are high the requirement for quick heating is small this way the cop can be improved by decreasing the tcs upper limit values 66
- Cooling 67
- Field setting to control the different value 67
- Heating 67
- Note if quick cooling heating function is selected by the customer via remote controller the unit will go into quick cooling heating for 20 minutes neglecting the selected te tc after 20 minutes the selected te tc setting will receive priority again example the customer has to make a choice fix the te lower limit and or the tc upper limit on a certain value or choose the weather dependent te lower limit or tc upper limit in this case the customer can select 2 different outdoor temperatures that will trigger the changeover to a different te lower limit and or tc upper limit 67
- Free cooling 68
- Slow start for edp applications 68
- 1 0 1 2 69
- Bottom plate heater 69
- Control logic of the compressor with setting 26 2 03 04 69
- Dt rs 2 69
- For rzqg71 the bottom plate heater and free cooling cannot be combined as there is no x28a terminal present on the outdoor unit pcb 69
- Krp58m51 69
- Main pcb ou 69
- Off compressor 69
- Outdoor unit setting 2 53 xx 69
- Signal 0v or 230v 69
- The customer will have the choice to select 2 parameters to control the activation of the free cooling 69
- Use mode 2 53 std 01 function off with x and y to be chosen x increase free cooling start point above thermo on y temperature difference between indoor and outdoor ambient temperature to start the free cooling it is important to make setting 26 7 02 in case of the use of free cooling this to guarantee that the free cooling will start up before the outdoor unit when the cooling capacity of the free cooling should not be enough then the outdoor unit will kick in when thermo on 69
- Emergency operation 2 71
- Field setting from outdoor unit pcb 1 71
- Field setting from remote controller 1 71
- Part 4 field setting 71
- Test operation 8 71
- Be sure to perform a test run 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 be sure to execute the first test run of the installation in cooling mode operation never leave the unit unattended with an open front panel during test run 72
- 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 72
- Pre run checks 72
- Remote controller confirmation 72
- Test operation 72
- The settings of the remote controller for the brc1d series should be made in accordance with the following procedure the settings of the remote controller for the brc1e series should be made in accordance with the attached manual 72
- 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 72
- Precautions regarding test run 73
- Test run 73
- Failure diagnosis at the moment of first installation 74
- Brc1d528 75
- Field setting from remote controller 75
- Field setting mode 75
- First code no 75
- Unit no mode no second code no 75
- Wired remote controller 75
- Brc1e52 76
- Caution 77
- Remote controller settings 78
- Setting 80
- To change the field settings proceed as follows 80
- To set the field settings you have to change mode no first code no second code no 80
- Wireless remote controller 80
- Settings contents and code no for indoor units 81
- You can change the setting of 3 x 3 sensing cassette as mentioned below the method of field setting which can be conducted through remote controller is established practice but it is possible only with brce52 remote controller 81
- Detailed explanation of setting modes 82
- Filter cleaning sign interval 82
- 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 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 4 this function does not work when set back function is set by remote controller 5 this is the case when the remote sensor optional kit is used 6 this is the case when the sensor option optional kit is used 7 wind block one of 4 flaps can be set a block position block position closed position wind can not be blocked 100 but mostly blocked without additional parts 82
- Remote controller thermistor 82
- Select the thermistor to control room temperature 82
- The factory setting for the second 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 82
- 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 82
- 20 3 01 display 02 no display 83
- Cooling 83
- Esie15 13c field setting from remote controller 83
- Field setting 69 83
- Filter cleaning sign 83
- Heating 83
- Mode no first code no second code no filter cleaning display 83
- When using remote controller 83
- Whether or not to display filter cleaning after operation of certain duration can be selected 83
- 02 03 11 21 3 standard slightly up up 84
- A 6 minutes off 1 minute ll b 6 minutes off 1 minute setting airflow c 6 minutes off 1 minute l 84
- Airflow rate 84
- Airflow rate setting during heating fcqg only 84
- Field setting 84
- Field setting from remote controller esie15 13c 84
- For the purpose of securing airflow range during heating the number of revolutions of fan during heating can be changed make the setting according to installation environment 84
- Set the airflow by the combination of 3 modes as below 84
- 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 84
- Automatic operation mode control 85
- Automatic restart after power failure reset 85
- Calculates and controls the optimum indoor temperature 85
- Caution 1 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 question for the reason why 85
- 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 85
- Outdoor air temperature indoor air temperature temperature set by remote controller 85
- Setting of normal airflow 85
- Airflow direction setting 86
- Airflow range setting 86
- Individual setting of ventilation 86
- Make the following air flow direction setting according to the respective purpose 86
- Set the air flow direction of indoor units as below set when optional air outlet blocking pad has been installed 86
- Some indoor unit models are not equipped with draft prevention upward function 86
- This is set to perform individual operation of heat reclaim ventilation using the remote controller central unit when heat reclaim ventilation is built in switch only when heat reclaim ventilation is built in 86
- Factory set 87
- Factory settings 87
- Overview of the field setting on the outdoor units 87
- Remote controller settings 87
- The table below contains the factory settings of all outdoor units 87
- The table below contains the remote controller settings 87
- Capacity priority setting 88
- Lower the operation sound of the outdoor unit 88
- Method 88
- Purpose 88
- Quiet low noise operation 88
- Quiet low noise operation by automatic control 88
- Setting 88
- Silent operation can be activated by 1 automatic control by field setting from remote controller 2 external activation from optional pcb krp58m 88
- Silent operation can be set by field setting from the wired remote controller 88
- 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 88
- When setting mode 16 26 0 04 the low noise operation will be stopped when the heating or 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 88
- Capacity priority setting 89
- Exceptions 89
- External activation from optional pcb 89
- Output on x801m 12vdc 12ma maximum wire length 100 meter 89
- Power supply connector on outdoor pcb x77a 89
- Quiet low noise operation can also be activated from the optional pcb 89
- 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 89
- Same as with the automatic control priority for capacity can be set priority for capacity will be activated by changing field setting 26 0 03 in combination with the closed contact on krp58m 89
- Sound reduction 89
- The quiet low noise operation will be overruled in the following conditions pump down residual operation startup control defrost operation oil recovery 89
- Transmission connector on outdoor pcb x6a 89
- Demand 1 90
- Demand 2 90
- Demand 3 90
- Different demand setting can be selected by using terminal x801m demand 1 close contact between com and contact 1 demand 2 close contact between com and contact 2 demand 3 close contact between com and contact 3 90
- Forced thermostat off 90
- I demand function 90
- Output on x801m 12vdc 12ma maximum wire length 100 meter 90
- Power consumption limitation in function of setting on ds1 90
- Power consumption limitation set to 40 90
- Power supply connector on outdoor pcb x77a 90
- Purpose 90
- Set a limitation towards the power consumption from the system e g budget control limit power consumption during peak moments 90
- Setting 90
- Transmission connector on outdoor pcb x6a 90
- 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 91
- Caution 91
- Definition of low humidity area 91
- Function details 91
- Indoor side temperature db c 91
- Parameters 91
- Purpose 91
- Relative humidity 91
- Setting for low humidity application 91
- Setting is only allowed in this area 91
- When using the lh settings outside the low humidity area there is an increased risk of ice accumulation on the indoor coil or water blowing out from the indoor unit 91
- Graph 1 92
- Target evaporating temperature control in case of factory setting 16 26 2 01 92
- Graph 2 93
- Target evaporating temperature control when low humidity application is selected field setting 16 26 2 03 93
- Change thermostat control 94
- Defrost start setting 94
- Graph 3 94
- In order to increase continuous operation of the unit in low latent heat applications and avoid the rise of temperature after thermostat off the thermostat control will be changed when using field settings 16 26 2 03 16 26 2 04 94
- Refer to defrost operation on page 48 94
- Refer to slow start for edp applications on page 54 94
- Slow start 94
- Target evaporating temperature control when low humidity application freeze up operation prevention is selected field setting 16 26 2 04 94
- Thermostat off 94
- Thermostat on 94
- Trs 0 c no change from standard setting 94
- Trs 2 c for 5 minutes continuously trs 4 c 94
- 1 factory settings off and heat 95
- Bs button 95
- Dip switch 95
- Display lamp 95
- Field setting from outdoor unit pcb 95
- Location of dip switch and bs button 95
- 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 95
- Various settings are available by using the dip switches and the bs buttons on the pcb 95
- Field setting 96
- Field setting for outdoor unit 96
- Field setting from outdoor unit pcb esie15 13c 96
- In this mode the following conditions can be checked current operating condition normal test operation line inspection and normal error night time quiet operation condition normal low noise level 1 2 and demand operating condition normal 30 demand 40 demand 50 demand these conditions above can be checked by performing the following steps 96
- Setting by bs buttons 96
- Setting mode 1 96
- With setting mode 1 setting mode 2 and monitor mode 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 contents of retry contents of error causes of stepping down operation etc 96
- In this mode settings for the following items can be made 97
- Setting mode 2 97
- The figures in the columns under no represent the number of times to push the set bs2 button 98
- 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 99
- Work procedure 99
- 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 100
- Note 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 100
- Setting of refrigerant recovery mode when a refrigerant 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 100
- Monitor mode 101
- Field setting 102
- Field setting from outdoor unit pcb esie15 13c 102
- List of contents of retry and error 102
- Press the return bs3 button to return the system to the initial state of monitor mode 102
- Press the set bs2 button to set the led display to retry or error item 102
- Pressing the mode bs1 button will bring the system to the setting mode 1 102
- Take the following steps to check contents of retry and error 102
- To enter monitor mode press the mode bs1 button when in setting mode 1 102
- When set bs2 button is pressed the led display for return 2 turns on 102
- When set bs2 button is pressed the led display for return 3 turns on 102
- When the return bs3 button is pressed the led display for return 1 turns on 102
- Indoor unit 103
- List of detailed error codes skyair 103
- Outdoor unit 104
- Troubleshooting 105
- As emergency operational methods there are three methods as shown below choose the best method that is suitable for each purpose of use 106
- Changeover the switches of outdoor unit pcb ds1 as shown below 106
- Emergency operation 106
- Emergency operation forced operation 106
- Forced operation 106
- 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 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 106
- Turn off the power supply 2 changeover the switch of indoor unit pcb ss1 from norm normal to emg emergency 106
- When the power is turned on the operation will be forcibly activated 106
- Operation by the test operation mode 107
- Maintenance inspection 7 109
- Part 5 service diagnosis 109
- Symptom based troubleshooting 9 109
- Troubleshooting by led indications 17 109
- Troubleshooting by remote controller 18 109
- 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 111
- Guide lines for optimal operation condition 111
- Indoor unit fan h tap 111
- Maintenance inspection 111
- Overview 111
- Standard conditions 111
- 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 111
- When performing maintenance you should at least perform the following inspections 111
- 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 112
- Cooling 112
- Correlation of air conditioner s operation status and pressure running current 112
- Heating 112
- What happens in comparison to normal values is summarized in the table below measured for 15 20 minutes or more after operation starts 112
- Overview 113
- Symptom based troubleshooting 113
- Applicable model 114
- Equipment does not operate 114
- Supposed causes 114
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 115
- Check the electric system 115
- Diagnose based on error code on remote controller 115
- Esie15 13c symptom based troubleshooting 115
- Normal equipment starts operation 3 minutes later 3 min standby 115
- Service diagnosis 101 115
- Troubleshooting 115
- 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 115
- Wait until power returns 115
- Applicable model 116
- Indoor unit fan operates but compressor does not operate 116
- Supposed causes 116
- Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 117
- Check the thermistor 117
- Esie15 13c symptom based troubleshooting 117
- Normal thermostat off by outdoor temperature 117
- Replace the compressor 117
- Replace the magnetic switch or power transistor 117
- Replace the pcb 117
- Service diagnosis 103 117
- Troubleshooting 117
- Turn on the power switch or replace the fuse 117
- After vacuum drying charge correct amount of refrigerant check the pressure switch 118
- All models of skyair series 118
- Applicable model 118
- Cleaning 118
- Cleaning of the heat exchanger 118
- Cooling heating operation starts but stops immediately 118
- Defective fan motor check the magnetic switch and auxiliary switch for fan motor 118
- Diagnose based on the error code on remote controller 118
- 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 some interfering item in airflow of indoor unit defective indoor unit fan 118
- Remove the interfering item 118
- Supposed causes 118
- Troubleshooting 118
- After unit shuts down it cannot be restarted for a while 119
- Applicable model 119
- Supposed causes 119
- Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 120
- Check the compressor 120
- Contact the power company 120
- Defective electronic expansion valve 120
- Defective four way valve 120
- Normal unit is in 3 min standby mode 120
- Replace the power cable 120
- Service diagnosis 120
- Symptom based troubleshooting esie15 13c 120
- Troubleshooting 120
- Applicable model 121
- Equipment operates but does not provide cooling 121
- Supposed causes 121
- Additional unit installation should be considered 122
- After vacuum drying charge correct amount of refrigerant 122
- Check the each item 122
- Check the each section 122
- Normal 122
- Troubleshooting 122
- Applicable model 123
- Equipment operates but does not provide heating 123
- Supposed causes 123
- Additional unit installation should be considered 124
- After vacuum drying charge correct amount of refrigerant 124
- Check the each item 124
- No abnormality 124
- Refer to test operation on p 8 124
- This is normal heating operation will be conducted after 2 or 3 minutes 124
- Troubleshooting 124
- Wait for a while no abnormality 124
- All models of skyair series 125
- Applicable model 125
- Cleaning of air filter check the fan motor refer to troubleshooting a6 125
- Cleaning of heat exchanger is necessary 125
- Equipment discharges white mist 125
- Humid installation site installation site is dirty and with dense oil mists soiled heat exchanger clogged air filter defective fan motor 125
- Normal 125
- Normal mist is generated due to defrosting operation 125
- Remove the source of humid condition 125
- Remove the source of oil mist or dust 125
- Supposed causes 125
- Troubleshooting 125
- After vacuum drying charge correct amount of refrigerant 126
- All models of skyair series 126
- Applicable model 126
- Correct piping manually or attach a dead weight to pipe 126
- Correction of installation reinforcement for ceilings or walls 126
- Defective installation overcharge of refrigerant air mixed in refrigerant system flushing noise due to refrigerant shortage sound of shoo 126
- Disassemble and remove parts contact 126
- Equipment produces loud noise or vibration 126
- Insert cushion materials to the pipe support such as saddle 126
- Insert shock absorber in mounting section or strengthen the mounting section 126
- It is normal 126
- Normal 126
- Normal creak generates by shrinkage of resin parts due to temperature change 126
- Normal operation sound of draining device 126
- Normal the sound is flushing noise of gas refrigerant inside air conditioning unit 126
- Supposed causes 126
- Troubleshooting 126
- All models of skyair series 127
- Applicable model 127
- Carpet animal hair application cloth shop 127
- Dust collected inside the indoor unit are blown out cleaning for inside of indoor unit is necessary 127
- Equipment discharges dust 127
- Install the air filter 127
- Supposed causes 127
- Troubleshooting 127
- Applicable model 128
- Remote controller lcd displays 128
- Remote controller lcd displays 88 128
- Supposed causes 128
- The unit is checking to confirm that remote controller is normal indication appears for short time 128
- Troubleshooting 128
- Turn the switch to normal and reset power supply 128
- Applicable models 129
- Error decision conditions 129
- Method of error detection 129
- Remark 129
- Supposed causes 129
- Swing flap does not operate 129
- Fhqg x36a a1p 130
- Model connector for swing flap motor pcb fcqg x9a a2p 130
- Service diagnosis 130
- Symptom based troubleshooting esie15 13c 130
- Troubleshooting 130
- Foreword 131
- Troubleshooting by led indications 131
- Troubleshooting by led on outdoor unit pcb 131
- Troubleshooting by led on the indoor unit 131
- Procedure of self diagnosis by remote controller 132
- Troubleshooting by remote controller 132
- Wired remote controller brc1d528 132
- 1 checking a malfunction or warning 133
- 2 taking corrective action 133
- Press the menu enter button to check the error code 133
- Take the corrective action specific to the model 133
- 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 133
- Wired remote controller brc1e51 52a7 133
- 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 operation error has occurred in normal condition the error code of the last problem is displayed 134
- Up button down button 134
- Wireless remote controller 134
- Esie15 13c troubleshooting by remote controller 135
- Service diagnosis 121 135
- Error codes and description 136
- Indoor unit 137
- Outdoor unit 137
- Safety devices 137
- Applicable models 138
- Error decision conditions 138
- Indoor unit pcb abnormality 138
- Method of error detection 138
- Remote controller display 138
- Replace the indoor unit pcb 138
- Supposed causes 138
- The error may be caused by an external factor rather than damaged parts locate the cause and correct the situation 138
- Troubleshooting 138
- Applicable models 139
- Drain water level system abnormality 139
- Error decision conditions 139
- Method of error detection 139
- Remote controller display 139
- Supposed causes 139
- Connect the drain pump 140
- Connect the float switch 140
- Connect the short circuit connector 140
- Defective drain system 140
- Replace the drain pump 140
- Replace the float switch 140
- Replace the indoor unit pcb 140
- Replace the short circuit connector 140
- Troubleshooting 140
- Applicable models 141
- Error decision conditions 141
- Indoor unit fan motor abnormality 141
- Method of error detection 141
- Remote controller display 141
- Supposed causes 141
- Troubleshooting 141
- Applicable models 142
- Capacity setting abnormality 142
- Capacity setting adaptor 142
- Error decision conditions 142
- Install a capacity setting adaptor 142
- Method of error detection 142
- Remote controller display 142
- Replace the indoor unit pcb 142
- Supposed causes 142
- Troubleshooting 142
- Applicable models 143
- Error decision conditions 143
- Method of error detection 143
- Remote controller display 143
- Supposed causes 143
- Transmission error between indoor unit pcb and adaptor pcb 143
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 144
- Check the panel pcb and indoor unit pcb 144
- Connect the connector accurately 144
- Eliminate the external factor 144
- Normal operation 144
- Replace the harness 144
- Service diagnosis 144
- Short circuit x8a 144
- Troubleshooting 144
- Troubleshooting by remote controller esie15 13c 144
- Applicable models 145
- C4 c5 c9 145
- Error decision conditions 145
- Method of error detection 145
- Remote controller display 145
- Supposed causes 145
- Thermistor abnormality 145
- Troubleshooting 145
- Humidity sensor system abnormality 146
- Applicable models 147
- Error decision conditions 147
- Malfunction of motion sensor floor temperature sensor 147
- Method of error detection 147
- Remote controller display 147
- Supposed causes 147
- Troubleshooting 147
- Diagnosis flowchart 1 148
- Service diagnosis 148
- Troubleshooting by remote controller esie15 13c 148
- Diagnosis flowchart 2 149
- Esie15 13c troubleshooting by remote controller 149
- Service diagnosis 135 149
- Diagnosis flowchart 3 150
- Service diagnosis 150
- Troubleshooting by remote controller esie15 13c 150
- Diagnosis flowchart 4 151
- Esie15 13c troubleshooting by remote controller 151
- Service diagnosis 137 151
- Applicable models 152
- Error decision conditions 152
- Method of error detection 152
- Remote controller display 152
- Remote controller thermistor abnormality 152
- Supposed causes 152
- Troubleshooting 152
- Outdoor unit pcb abnormality 153
- Applicable models 154
- Error decision conditions 154
- High pressure abnormality detected by the high pressure switch 154
- Method of error detection 154
- Remote controller display 154
- Supposed causes 154
- Check 2 155
- Check 8 155
- Correctly connect 155
- Open the stop valve 155
- Refer to p 88 155
- Refer to p 93 refer to p 93 155
- Replace the connecting line 155
- Replace the high pressure switch 155
- Replace the high pressure switch with no continuity 155
- Replace the indoor unit intermediate heat exchanger thermistor 155
- Replace the outdoor unit intermediate heat exchanger thermistor 155
- Replace the outdoor unit pcb a1p 155
- Troubleshooting 155
- Actuation of pressure sensor 156
- Applicable models 156
- Error decision conditions 156
- Method of error detection 156
- Remote controller display 156
- Supposed causes 156
- Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 157
- Check 1 157
- Check 3 157
- Esie15 13c troubleshooting by remote controller 157
- Refer to p 85 157
- Refer to p 89 refer to p 89 157
- Service diagnosis 143 157
- Troubleshooting 157
- Applicable models 158
- Compressor motor lock 158
- Connect correctly 158
- Error decision conditions 158
- Method of error detection 158
- Open the stop valve 158
- Remedy the cause 158
- Remote controller display 158
- Replace the compressor 158
- Supposed causes 158
- Troubleshooting 158
- Applicable models 159
- Ask repair so that the supply voltage will be within the normal range 159
- Error decision conditions 159
- Method of error detection 159
- Outdoor unit fan motor abnormality 159
- Remote controller display 159
- Supposed causes 159
- Troubleshooting 159
- Check 5 160
- External factor noise etc 160
- Refer to p 91 160
- Remove the foreign matter 160
- Replace the fan motor 160
- Replace the fuse 160
- Replace the outdoor unit inverter pcb 160
- Service diagnosis 160
- Troubleshooting by remote controller esie15 13c 160
- Applicable models 161
- Electronic expansion valve abnormality 161
- Error decision conditions 161
- Method of error detection 161
- Remote controller display 161
- Supposed causes 161
- 1 connector and indoor unit pcb 162
- Check 6 162
- Connect properly 162
- Mount properly 162
- Refer to p 91 refer to p 91 162
- Replace the coil of the electronic expansion valve 162
- Troubleshooting 162
- Check 1 163
- Check 7 163
- Esie15 13c troubleshooting by remote controller 163
- External factor noise etc 163
- Refer to p 85 163
- Refer to p 92 163
- Replace the defective thermistor 163
- Replace the outdoor unit pcb a1p 163
- Replace the pressure sensor 163
- Service diagnosis 149 163
- Applicable models 164
- Discharge pipe temperature control 164
- Error decision conditions 164
- Method of error detection 164
- Remote controller display 164
- Supposed causes 164
- 1 temperature varies depending on model type 165
- Abnormality in refrigerant system such as refrigerant shortage faulty compressor etc conduct inspection 165
- Attach the thermistor 165
- Check 1 165
- Connect correctly 165
- Refer to p 85 refer to p 85 165
- Replace the discharge pipe thermistor 165
- Replace the outdoor unit pcb a1p 165
- Troubleshooting 165
- Applicable models 166
- Error decision conditions 166
- High pressure switch system abnormality 166
- Method of error detection 166
- Remote controller display 166
- Supposed causes 166
- Troubleshooting 166
- Applicable models 167
- Error decision conditions 167
- Low pressure switch system abnormality 167
- Method of error detection 167
- Remote controller display 167
- Supposed causes 167
- Troubleshooting 167
- Applicable models 168
- Error decision conditions 168
- H9 j3 j5 j6 j7 j8 168
- Method of error detection 168
- Remote controller display 168
- Supposed causes 168
- Thermistor system abnormality 168
- Troubleshooting 168
- Applicable models 169
- Error decision conditions 169
- Method of error detection 169
- Outdoor unit pcb abnormality 169
- Remote controller display 169
- Supposed causes 169
- Check 5 170
- Connect securely 170
- External factor noise etc 170
- Refer to p 91 170
- Replace the fan motor 170
- Replace the fuse use only specified fuses 170
- Replace the outdoor unit pcb a1p 170
- Request an improvement to make the power supply voltage fall within the standard range 170
- Troubleshooting 170
- Applicable models 171
- Error decision conditions 171
- Method of error detection 171
- Radiation fin temperature rise 171
- Remote controller display 171
- Supposed causes 171
- Troubleshooting 172
- Applicable models 173
- Error decision conditions 173
- Method of error detection 173
- Open the stop valve 173
- Output overcurrent detection 173
- Remote controller display 173
- Replace the compressor 173
- Supposed causes 173
- Troubleshooting 173
- Check 4 174
- Compressor inspection inspect according to the diagnosis procedure for abnormal noise vibration operating status etc of the compressor 174
- Correct the power supply 174
- Go to the other troubleshooting 174
- Normal operation 174
- Refer to p 90 174
- Replace the outdoor unit pcb 174
- Service diagnosis 174
- Troubleshooting by remote controller esie15 13c 174
- Applicable models 175
- Electronic thermal time lag 175
- Error decision conditions 175
- Method of error detection 175
- Remote controller display 175
- Supposed causes 175
- 1 secondary electronic thermal detection value 176
- Check 2 176
- Check 4 176
- Check 8 176
- Compressor inspection inspect according to the diagnosis procedure for abnormal noises vibration operating status etc of the compressor 176
- Open the stop valve 176
- Refer to p 88 refer to p 88 176
- Refer to p 90 176
- Refer to p 93 176
- Remedy the cause check for excessive refrigerant charging 176
- Replace the outdoor unit pcb a1p 176
- Troubleshooting 176
- Applicable models 177
- Error decision conditions 177
- Method of error detection 177
- Remote controller display 177
- Stall prevention time lag 177
- Supposed causes 177
- Check 4 178
- Compressor inspection inspect according to the diagnosis procedure for abnormal noises vibration operating status etc of the compressor 178
- Insufficient pressure equalization check refrigerant system 178
- Open the stop valve 178
- Refer to p 90 178
- Replace the compressor 178
- Replace the outdoor unit pcb a1p 178
- Service diagnosis 178
- Troubleshooting 178
- Troubleshooting by remote controller esie15 13c 178
- Transmission system abnormality between control and inverter pcb 179
- Applicable models 180
- Error decision conditions 180
- Field factors 180
- Method of error detection 180
- Open phase or power supply voltage imbalance 180
- Remote controller display 180
- Replace the outdoor unit inverter pcb 180
- Supposed causes 180
- Troubleshooting 180
- Applicable models 181
- Defective capacity setting 181
- Error decision conditions 181
- Method of error detection 181
- Remote controller display 181
- Supposed causes 181
- Troubleshooting 181
- Applicable models 182
- Error decision conditions 182
- Method of error detection 182
- Refrigerant shortage alert 182
- Remote controller display 182
- Supposed causes 182
- Troubleshooting 182
- Applicable models 183
- Error decision conditions 183
- Method of error detection 183
- Refrigerant shortage error 183
- Remote controller display 183
- Supposed causes 183
- Check 9 184
- Check the refrigerant piping system for clogging 184
- Collect refrigerant and recharge a proper amount of refrigerant after vacuum drying 184
- Match wiring and piping connection 184
- Refer to p 94 184
- Service diagnosis 184
- Troubleshooting 184
- Troubleshooting by remote controller esie15 13c 184
- Applicable models 185
- Error decision conditions 185
- Method of error detection 185
- Power supply voltage abnormality 185
- Remote controller display 185
- Supposed causes 185
- Check 5 186
- Refer to p 91 186
- Service diagnosis 186
- Troubleshooting 186
- Troubleshooting by remote controller esie15 13c 186
- Applicable models 187
- Error decision conditions 187
- Method of error detection 187
- Remote controller display 187
- Supposed causes 187
- Transmission error between indoor and outdoor unit 187
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 188
- Connect the connecting line of indoor and outdoor unit correctly 188
- Field factor 188
- Is connector not connected to the x806a on outdoor unit pcb x804a x805a is connected correctly 188
- Replace the outdoor fan motor 188
- Service diagnosis 188
- Troubleshooting 188
- Troubleshooting by remote controller esie15 13c 188
- Wire correctly 188
- Wire correctly and securely fasten the terminal screws 188
- 1 on for 0 second and off for 0 second blink about 25 times for 10 seconds normally on for 0 second and off for 0 second blink about 12 times for 10 seconds 2 optional accessories refer to adaptor for wiring auto grill and other accessories 189
- Make the fuse normal in case of a fuse can be replaced replace the fuse in case of a fuse cannot be replaced replace pcb 189
- Replace the indoor unit pcb 189
- Replace the outdoor fan motor 189
- Replace the outdoor unit pcb a1p 189
- There is no problem with the unit an external factor noise etc other than unit failure may be the cause 189
- All models of indoor unit 190
- Applicable models 190
- Connection of two main remote controllers when using 2 remote controllers defective remote controller defective of indoor unit pcb external factor noise etc 190
- Error decision conditions 190
- Method of error detection 190
- Normal transmission does not continue for specified period 190
- Remote controller display 190
- Supposed causes 190
- 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 190
- Transmission error between remote controller and indoor unit 190
- Troubleshooting 190
- Applicable models 191
- Error decision conditions 191
- Method of error detection 191
- Remote controller display 191
- Replace the remote controller wiring 191
- Supposed causes 191
- Transmission error between main remote controller and sub remote controller 191
- Troubleshooting 191
- Turn off the power once and restart operation replace the remote controller pcb if any error is generated 191
- Turn the ss 1 switch of one remote controller to main turn off the power supply and restart operation 191
- Applicable models 192
- Error decision conditions 192
- Field setting switch abnormality 192
- Method of error detection 192
- Remote controller display 192
- Supposed causes 192
- Adopt only one of the remote controllers 193
- Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 193
- Check the power supply system inside the indoor unit 193
- Connect correctly 193
- Could be wrong wiring check again 193
- Esie15 13c troubleshooting by remote controller 193
- Normal 193
- Remove the jumper group control in the same system is not allowed 193
- Replace the indoor unit pcb 193
- Service diagnosis 179 193
- Set correctly 193
- Troubleshooting 193
- Address duplication of centralized controller 194
- Uc address duplication of centralized controller 194
- Applicable models 195
- Error decision conditions 195
- Method of error detection 195
- Remote controller display 195
- Supposed causes 195
- Transmission error between centralized controller and indoor unit 195
- Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 196
- Correctly connect the connector 196
- Correctly connect the wiring 196
- Make correct setting of the centralized control group no 196
- Make the wiring correct 196
- Replace the indoor unit pcb 196
- Replace the remote controller pcb 196
- Reset the all remote controllers power supply at the same time 196
- Service diagnosis 196
- Troubleshooting 196
- Troubleshooting by remote controller esie15 13c 196
- Applicable models 197
- Error decision conditions 197
- Method of error detection 197
- Remote controller display 197
- Supposed causes 197
- Transmission error between indoor and outdoor unit piping and wiring mismatch refrigerant shortage 197
- Check the refrigerant piping system for clogging 198
- Correctly connect inter unit wiring between the indoor and outdoor units 198
- Match the connection of the inter unit wiring and piping between the indoor and outdoor units 198
- Recharge a proper amount of refrigerant after refrigerant recovery and vacuum drying 198
- Troubleshooting 198
- Check 1 199
- Check the thermistors 199
- Checking 199
- For more information about these thermistors see wiring diagrams on p 99 functions of main components and thermistors on p 8 199
- If the cause of the problem is related to the thermistors then the thermistors should be checked prior to changing the pcb 199
- Outdoor 199
- Overview of thermistors 199
- The table below contains an overview of the thermistors indoor 199
- Thermistors 199
- To check the thermistors proceed as follows 199
- Indoor unit thermistor r1t suction air thermistor r2t heat exchanger thermistor r3t intermediate heat exchanger thermistor 200
- Outdoor unit rzqg thermistor r1t outdoor air thermistor r3t suction pipe thermistor r4t heat exchanger distributor pipe r5t intermediate heat exchanger thermistor r6t liquid pipe thermistor r10t radiation fin thermistor 200
- Service diagnosis 200
- Thermistor resistance temperature characteristics 200
- Troubleshooting by remote controller esie15 13c 200
- Esie15 13c troubleshooting by remote controller 201
- Outdoor unit 201
- Rzqg thermistor r2t discharge pipe thermistor 201
- Service diagnosis 187 201
- 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 202
- Check 2 202
- Evaluation of abnormal high pressure 202
- In cooling operation 202
- In heating operation 202
- 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 203
- Check 3 203
- Evaluation of abnormal low pressure 203
- In cooling operation 203
- In heating operation 203
- Check 4 204
- Check for power transistor 204
- 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 normal if the continuity check results in the following 204
- 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 and continuity may be reversed 204
- Power transistor on inverter pcb 204
- 1 turn the power supply off 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 205
- Check 5 205
- Check 6 205
- Electronic expansion valve connector and coil resistance criteria 205
- Fan motor signal line 205
- Check 7 206
- Check for factors causing wet operation 206
- 1 high pressure intermediate heat exchanger thermistor 3 207
- 1 high pressure pressure sensor 207
- 2 low pressure pressure sensor 2 low pressure intermediate heat exchanger thermistor 3 207
- 3 this measured temperature is used to calculate the equivalent saturation pressure of the refrigerant refer to p 00 207
- As criteria for judging whether refrigerant is excessively charged or not refer to the following operating conditions 207
- Check 8 207
- Check for excessive refrigerant charging 207
- Cooling heating 207
- Esie15 13c troubleshooting by remote controller 207
- 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 207
- Service diagnosis 193 207
- Check 9 208
- Clogged points 208
- Temperature differences must occur before or after the clogged points 208
- 1 high pressure intermediate heat exchanger thermistor 3 2 low pressure pressure sensor 209
- 3 this measured temperature is used to calculate the equivalent saturation pressure of the refrigerant refer to p 00 209
- As criteria for judging whether refrigerant is inadequate or not refer to the following operating conditions 209
- Check 10 209
- Check for inadequate refrigerant 209
- Cooling 209
- Esie15 13c troubleshooting by remote controller 209
- 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 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 209
- Service diagnosis 195 209
- 1 high pressure pressure sensor 210
- 2 low pressure intermediate heat exchanger thermistor 3 210
- 3 this measured temperature is used to calculate the equivalent saturation pressure of the refrigerant refer to p 00 210
- Heating 210
- 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 210
- Service diagnosis 210
- Troubleshooting by remote controller esie15 13c 210
- Part 6 appendix 211
- Notes 1 the pipes between the branch and the indoor units should have the same size as the indoor connections 2 the check valve is only present in following models rzqg71l rzqsg100l and rzqsg125l 212
- Pair application 212
- Piping diagrams 212
- Rzqg l9v1 212
- 3 4 5 6 213
- A1p a2p bs1 bs4 c1 c3 ds1 e1h f1u f2u f6u f7u f8u h1p h7p hap k1r k2r k10r k11m k13r k15r l1r m1c m1f 213
- A1p a2p bs1 bs4 c1 c3 ds1 e1h f1u f4u f6u f7u f8u h1p h7p hap k1r k10r k11m k13r k15r k4r l1r l3r m1c m1f m2f 213
- A1p l1r 213
- Appendix 199 213
- Blk wht red 213
- Bottom plate heater option 213
- Bottom plate heater option fuse 213
- Bs1 bs2 bs3 bs4 213
- C1 v3d 213
- Capacitor dip switch 213
- Colours blk black red red blu blue wht white grn green ylw yellow brn brown org orange pnk pink this wiring diagram applies only to the outdoor unit refer to the wiring diagram sticker on the back of the front plate for how to use the bs1 bs4 and ds1 switches 213
- Esie15 13c wiring diagrams 213
- F8u f7u 213
- Fuse t 3 5a 250v fuse f 1 a 250v light emitting diode service monitor is orange light emitting diode service monitor is green magnetic relay y1s magnetic relay 213
- Fuse t 5 a 250v fuse f 1 a 250v light emitting diode service monitor is orange light emitting diode service monitor is green magnetic relay y1s magnetic relay 213
- Grn ylw 213
- H1p h3p h5p h7p 213
- H2p h4p h6p 213
- Igbt power module diode module 213
- Indoor 213
- Insulated gate bipolar transistor igbt 213
- Magnetic relay e1h option 213
- Magnetic relay magnetic contactor 213
- Motor fan 213
- Motor fan upper motor fan lower 213
- N neutral l live field wiring terminal 213
- N neutral l live field wiring terminal colours blk black red red blu blue wht white grn green ylw yellow brn brown org orange pnk pink this wiring diagram applies only to the outdoor unit refer to the wiring diagram sticker on the back of the front plate for how to use the bs1 bs4 and ds1 switches 213
- Noiseless earth 213
- Notes 1 213
- Outdoor 213
- Outdoor unit 213
- Printed circuit board main printed circuit board 213
- Protective earth noiseless earth option connector connection 213
- Protective earth option connector connection 213
- Ps earth leakage circuit breaker 30ma 213
- Push button switch 213
- Q1di r1 r5 r1t r2t r3t r4t r5t 213
- Q1di r2 r5 r6 r1t r2t r3t r4t r5t 213
- R6 k15r 213
- R6t thermistor fin 213
- R7t r8t 213
- R7t rc s1ph s1pl tc v1d v4d v1r v2r v1t v3t x1m y1e y1s z1c z6c z1f z6f 213
- Rc k10r k11m 213
- Rc s1ph s1pl tc v1d v3d v1r v2r v1t v2t x1m y1e y1s z1c z6c z1f z3f 213
- Reactor motor compressor 213
- Red blu 213
- Refer to the combination table and the option manual for how to connect the wiring to __________ and __________ 213
- Resistor thermistor air thermistor discharge 213
- Rzqg100 140l 213
- Rzqg71l 213
- S1pl p 213
- See note 7 213
- See note 8 213
- Signal receiver circuit high pressure switch low pressure switch signal transmission circuit 213
- Switching power supply 213
- Terminal strip 213
- Terminal strip electronic expansion valve solenoid valve 4 way valve noise filter ferrite core noise filter 213
- Thermistor heat exchanger thermistor heat exchanger middle thermistor liquid 213
- Thermistor positive temperature coefficient 8 213
- Thermistor suction 213
- V1t x25a 213
- When operating do not short circuit protection device s s1ph s1pl refer to the service manual for instructions on how to set the selector switches ds1 the factory setting of all switches is off 213
- Wiring diagrams 213
- X11a x12a 213
- X31a x32a 213
- Z2 c n 3 213
- Z3 c n 1 213
- Z4 c n 4 213
- Z5 c n 6 213
- Z6 c n 1 z1 c n 5 213
- Appendix 214
- Thermodynamic characteristic of r 410a 214
- Thermodynamic characteristic of r 410a esie15 13c 214
- Caution 215
- Removing the switchbox 215
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