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Daikin LRLEQ3BY1 [28/36] Troubleshooting
![Daikin LRLEQ3BY1 [28/36] Troubleshooting](/views2/1801924/page28/bg1c.png)
8 Troubleshooting
Installation and operation manual
28
LRMEQ+LRLEQ3+4BY1
Air-cooled refrigeration condensing unit
4P545024-1 – 2018.09
Code Description Criteria Times of
retry
Output signal Cause Solution
Wet operation from refrigeration
suction pipe
Suction superheat <5K AND discharge
superheat <15K AND discharge temperature
<60°C, continuously for 10 minutes
0 Caution
▪
Excessive frost formation on indoor
side
▪
Wrong selection of expansion valves
▪
Adjust defrost cycle
▪
Select the correct type of expansion
valve
In addition to above conditions (for caution):
discharge superheat <15K for 6 hours
0 Warning
Wet operation from injection pipe Suction superheat ≥5K AND discharge
superheat <15K AND discharge temperature
<60°C, continuously for 90 minutes
0 Caution
▪
Defective expansion valve, suction pipe
thermistor, or subcool heat exchanger
outlet thermistor
▪
Refrigerant overcharge
▪
Replace defective component
▪
Adjust refrigerant charge
In addition to above conditions (for caution):
discharge superheat <15K for 6 hours
0 Warning
3‑sensor error When 3 or more sensors detect abnormality 0 Warning
▪
Faulty connection of sensor
▪
Defective sensor or outdoor unit PCB
▪
Connect the sensor properly
▪
Replace defective component
High pressure switch failure No continuity of high pressure switch 0 Warning
▪
Faulty connection of switch
▪
Defective swith or outdoor unit PCB
▪
Connect the switch properly
▪
Replace defective component
Outdoor fan motor signal failure Abnormal position of signal of 1 fan motor 4 Caution
▪
Abnormal fan motor signal (circuit
error)
▪
Broken, short, or disconnected
connector of fan motor connection
cable
▪
Defective inverter PCB
▪
Ensure correct connection
▪
Replace the fan motor
▪
Replace the inverter PCB
Abnormal position of signal of 2 fan motors 4 Warning
Outdoor air thermistor failure Open circuit or shortcircuit 0 Caution
▪
Faulty connection of sensor
▪
Defective sensor
▪
Connect the sensor properly
▪
Replace defective component
Discharge thermistor failure Open circuit or shortcircuit 0 Warning
▪
Faulty connection of sensor
▪
Defective sensor
▪
Connect the sensor properly
▪
Replace defective component
Suction thermistor failure Open circuit or shortcircuit 0 Caution
▪
Faulty connection of sensor
▪
Defective sensor
▪
Connect the sensor properly
▪
Replace defective component
Heat exchanger inlet thermistor
failure
Open circuit or shortcircuit 0 Warning
▪
Faulty connection of sensor
▪
Defective sensor
▪
Connect the sensor properly
▪
Replace defective component
Heat exchanger outlet thermistor
failure
Open circuit or shortcircuit 0 Warning
▪
Faulty connection of sensor
▪
Defective sensor
▪
Connect the sensor properly
▪
Replace defective component
High pressure sensor failure Open circuit or shortcircuit 0 Caution
▪
Faulty connection of sensor
▪
Defective sensor
▪
Connect the sensor properly
▪
Replace defective component
Low pressure sensor failure Open circuit or shortcircuit 0 Warning
▪
Faulty connection of sensor
▪
Defective sensor
▪
Connect the sensor properly
▪
Replace defective component
Inverter PCB malfunction IGBT error 0 Warning
▪
Defective inverter PCB
▪
Check for external causes (e.g. EMI
noise), or replace the inverter PCB.
Radiation fin temperature rise 93°C 9 Warning
▪
Fin temperature rise because of
inverter malfunction
▪
Fin temperature rise because of short
circuit
▪
Fin thermistor malfunction
▪
Remove any obstacles that block the
passage of air to the outdoor unit
▪
Check connection on PCB
▪
Replace defective component
Inverter compressor
instantaneous overcurrent
— 9 Warning — —
Inverter compressor overcurrent ≥16.1A 9 Warning — —
Defective inverter compressor
startup failure
— 4 Warning — —
Transmission error between
control PCB and inverter PCB
Transmission failure between main PCB and
inverter PCB
No limit Caution Defective connection between main and
inverter PCB
Replace defective component
Inverter compressor power
voltage imbalance
— 9 Warning Unbalanced power supply voltage Check if power supply is within range
Radiation fin thermistor Radiation fin thermistor open circuit or short
circuit
No limit Caution Defective radiation fin thermistor, inverter
PCB, inverter compressor, or fan motor
Replace defective component
Reversed phase / Open phase Reversed phase or open phase 0 Warning Faulty connection of phase order to power
supply terminal X1M
Make sure the phase order to X1M is ok
Inverter compressor abnormal
power voltage
— 9 Warning Insufficient power supply voltage Make sure there is sufficient power supply
voltage
Содержание
- Air cooled refrigeration condensing unit 1
- Installation and operation 1
- Manual 1
- Installation and operation manual 2
- Daikin europe n v 3
- Daikin tcf 23 d1 06 2017 3
- Daikin tcfp 01 3
- Electromagnetic compatibility 2014 30 eu 3
- En60335 2 40 3
- Lrmeq3by1 3
- Lrmeq4by1 3
- Machinery 2006 42 ec 3
- P452548 2b 3
- Pressure equipment 2014 68 eu 3
- Tüv nb1856 3
- Vinçotte nv nb0026 3
- Director 4
- Jan olieslagerslaan 35 4
- Ostend 2nd of october 2017 4
- P452548 2b 4
- Shigeki morita 4
- Vilvoorde belgium 4
- Vinçotte nv 4
- Daikin europe n v 5
- Daikin tcf 23 d3 08 2018 5
- Daikin tcfp 01 5
- Electromagnetic compatibility 2014 30 eu 5
- En60335 2 40 5
- Lrleq3by1 lrleq4by1 5
- Machinery 2006 42 ec 5
- P452548 3c 5
- Pressure equipment 2014 68 eu 5
- Tüv nb0197 5
- Vinçotte nv nb0026 5
- Director 6
- Hiromitsu iwasaki 6
- Jan olieslagerslaan 35 6
- Ostend 3rd of december 2018 6
- P452548 3c 6
- Vilvoorde belgium 6
- Vinçotte nv 6
- About the box 8 7
- About the documentation 7
- About the documentation 7 7
- About the system 30 7
- About the units 8 7
- About this document 7
- Authorised installers end users 7
- Commissioning 25 7
- Configuration 22 7
- Disposal 32 7
- For the installer 8 7
- For the user 30 7
- Information 7
- Installation 12 7
- Maintenance and service 31 7
- Operation 31 7
- Preparation 9 7
- Relocation 32 7
- Table of contents 7
- Target audience 7
- Technical data 29 7
- This appliance is intended to be used by expert or trained users in shops in light industry and on farms or for commercial use by lay persons 7
- Troubleshooting 27 7
- Troubleshooting 31 7
- 10 n m 8
- About the box 8
- About the outdoor unit 8
- About the units 8
- For the installer 8
- Outdoor unit 8
- To remove the accessories from the outdoor unit 8
- To remove the transportation stay 8
- About reusing existing indoor heat exchangers 9
- About reusing existing piping 9
- About the indoor units 9
- C b d a 9
- Installation site requirements of the outdoor unit 9
- Preparation 9
- Preparing refrigerant piping 9
- Preparing the installation site 9
- System layout 9
- A a piping between outdoor unit and piping branching 10
- B c b c piping between piping branching 10
- D f d f piping between piping branching and indoor unit 10
- Preparation 10
- Refrigerant piping material 10
- Refrigerant piping requirements 10
- To select refrigerant branch kits 10
- To select the piping size 10
- Preparation 11
- Preparing electrical wiring 11
- Refrigerant piping length and height difference 11
- Safety device requirements 11
- To select the expansion valve 11
- Installation 12
- Mounting the outdoor unit 12
- Opening the units 12
- To install the outdoor unit 12
- To open the outdoor unit 12
- To prevent the outdoor unit from falling over 12
- To provide the installation structure 12
- A b b c 13
- Connecting the refrigerant piping 13
- Installation 13
- To close the stop valve 13
- To handle the stop valve 13
- To handle the stop valve cover 13
- To open the stop valve 13
- Using the stop valve and service port 13
- Guidelines when installing a sight glass 14
- Installation 14
- Tightening torques 14
- To handle the service port 14
- To remove the pinched pipes 14
- B a 4 ø6 mm 15
- Guidelines when installing a dryer 15
- Installation 15
- To connect the refrigerant piping to the outdoor unit 15
- About checking the refrigerant piping 16
- Checking refrigerant piping general guidelines 16
- Checking refrigerant piping setup 16
- Checking the refrigerant piping 16
- D e1 e f 16
- Installation 16
- Charging refrigerant 17
- Installation 17
- Precautions when charging refrigerant 17
- To check for leaks pressure leak test 17
- To check for leaks vacuum leak test 17
- To determine the additional refrigerant amount 17
- To insulate the refrigerant piping 17
- To perform a leak test 17
- To perform vacuum drying 17
- Installation 18
- To charge refrigerant 18
- Error codes when charging refrigerant 19
- Installation 19
- To fix the fluorinated greenhouse gases label 19
- C c1 caution signal connection recommended 20
- C w1 warning signal connection recommended 20
- Compressor is running 20
- Connecting the electrical wiring 20
- D111889 20
- Equivalent is used to determine the maintenance intervals follow the applicable legislation 20
- Field wiring consists of the following 20
- Field wiring overview 20
- Fix the label on the inside of the outdoor unit near the gas and liquid stop valves 20
- Formula to calculate the greenhouse gas emissions gwp value of the refrigerant total refrigerant charge in kg 1000 20
- In europe the greenhouse gas emissions of the total refrigerant charge in the system expressed as tonnes c 20
- Installation 20
- Low noise switch if you want to remotely turn on off low noise operation see setting 2 18 you must install a low noise switch use a voltage free contact for 20
- Microcurrent 1 ma 12 v dc connect to x2m a b 20
- Notice 20
- Output signals the outdoor unit is provided with a terminal x3m that can output 4 different signals the signal is 220 240 v ac the maximum load for all signals is 0 a the unit outputs a signal in the following situations 20
- P1 p2 operation signal connection mandatory 20
- R p2 run signal connection optional when the 20
- Remote operation switch the unit is factory equipped with an operation switch with which you can turn unit operation on off if you want to remotely turn outdoor unit operation on off a remote operation switch is required use a voltage free contact for microcurrent 1 ma 12 v dc connect to x2m c d and set to remote 20
- The operation output p1 p2 of the outdoor unit must be connected to all solenoid valves that are installed upstream of the expansion valves at the indoor unit this connection is required because the outdoor unit must be able to control the solenoid valves during startup to prevent liquid refrigerant from entering the compressor and oil return operation 20
- When an error occurs that causes unit operation to stop 20
- When an error occurs that does not stop unit operation 20
- When the indoor unit solenoid valve is being controlled 20
- A b c d 21
- Guidelines when connecting the electrical wiring 21
- Guidelines when knocking out knockout holes 21
- Installation 21
- To connect the electrical wiring on the outdoor unit 21
- About making field settings 22
- Configuration 22
- Making field settings 22
- Bs1 5 s 23
- Configuration 23
- Field setting components 23
- To access mode 1 or 2 23
- To access the field setting components 23
- Bs1 5 s 24
- Bs2 x b 24
- Bs3 1 c 24
- Bs3 1 d 24
- Configuration 24
- Mode 1 and default situation monitoring settings 24
- Mode 2 field settings 24
- To use mode 1 24
- To use mode 2 24
- Checklist before commissioning 25
- Commissioning 25
- Precautions when commissioning 25
- To connect the pc configurator to the outdoor unit 25
- About the test run 26
- Checklist during commissioning 26
- Commissioning 26
- To perform a test run 7 leds display 26
- Correcting after abnormal completion of the test run 27
- Error codes overview 27
- Operating the unit 27
- Solving problems based on error codes 27
- To display the error codes of the latest malfunctions 27
- Troubleshooting 27
- Air cooled refrigeration condensing unit 28
- Installation and operation manual 28
- Lrmeq lrleq3 4by1 28
- P545024 1 2018 9 28
- Troubleshooting 28
- A subset of the latest technical data is available on the regional daikin website publicly accessible the full set of latest technical data is available on the daikin extranet authentication required 29
- Earth wiring 29
- English translation 29
- Field cable 29
- Field wire 29
- Multiple rows of units 29
- Piping diagram outdoor unit 29
- See figure 1 on the inside of the front cover 29
- See figure 2 on the inside of the front cover 29
- See figure 3 on the inside of the front cover 29
- Service space outdoor unit 29
- Single unit single row of units 29
- Stacked units max 2 levels 29
- Symbols 29
- Symbols symbols 29
- Technical data 29
- The wiring diagram is delivered with the unit located at the inside of the service cover 29
- When mounting units side by side the piping route must be to the front to the back or downwards in this case the piping route to the side is not possible when mounting the units side by side and routing the piping to the back you must keep a distance of 250 mm between the units instead of 100 mm as shown on the figures below 29
- Wire number 15 29
- Wiring diagram outdoor unit 29
- X1m main terminal 29
- About the system 30
- C b d a 30
- For the user 30
- System layout 30
- About operating the system 31
- About the refrigerant 31
- After sales service and warranty 31
- Maintenance and service 31
- Operating the system 31
- Operation 31
- Operation range 31
- Recommended maintenance and inspection 31
- Troubleshooting 31
- Warranty period 31
- Disposal 32
- Relocation 32
- Symptom dust comes out of the unit 32
- Symptom noise outdoor unit 32
- Symptom the outdoor unit fan does not spin 32
- Symptom the system does not operate 32
- Symptom the unit does not stop immediately when operation is stopped 32
- Symptoms that are not system malfunctions 32
- Copyright 2016 daikin 36
- P545024 1 36
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