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Daikin RXYTQ46TYF [32/36] Troubleshooting
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14 Troubleshooting
Installation and operation manual
32
RXYTQ8~16T7YF
VRV IV system air conditioner
4P388987-1C – 2016.02
Main code Contents
Capacity setting malfunction (indoor)
Transmission malfunction between main PCB and sub
PCB (indoor)
Heat exchanger thermistor malfunction (indoor; liquid)
Heat exchanger thermistor malfunction (indoor; gas)
Suction air thermistor malfunction (indoor)
Discharge air thermistor malfunction (indoor)
Movement detector or floor temperature sensor
malfunction (indoor)
User interface thermistor malfunction (indoor)
PCB malfunction (outdoor)
Current leakage detector was activated (outdoor)
High pressure switch was activated
Low pressure malfunction (outdoor)
Compressor lock detection (outdoor)
Fan motor malfunction (outdoor)
Electronic expansion valve malfunction (outdoor)
Discharge temperature malfunction (outdoor)
Abnormal suction temperature (outdoor)
Refrigerant overcharge detection
High pressure switch malfunction
Low pressure switch malfunction
Fan motor trouble (outdoor)
Ambient temperature sensor malfunction (outdoor)
Pressure sensor malfunction
Current sensor malfunction
Discharge temperature sensor malfunction (outdoor)
Heat exchanger gas temperature sensor malfunction
(outdoor)
Suction temperature sensor malfunction (outdoor)
De-icing temperature sensor malfunction (outdoor)
Liquid temperature sensor (after subcool HE)
malfunction (outdoor)
Liquid temperature sensor (coil) malfunction (outdoor)
Gas temperature sensor (after subcool HE)
malfunction (outdoor)
High pressure sensor malfunction (S1NPH)
Low pressure sensor malfunction (S1NPL)
INV PCB abnormal
Fin temperature abnormal
Inverter PCB faulty
Compressor over current detected
Compressor lock (startup)
Transmission outdoor unit - inverter: INV transmission
trouble
INV unbalanced power supply voltage
Fin thermistor malfunction
Capacity setting malfunction (outdoor)
Abnormal low pressure drop, faulty expansion valve
Reversed power supply phase malfunction
INV voltage power shortage
System test run not yet executed
Faulty wiring indoor/outdoor
Abnormal user interface - indoor communication
Faulty wiring to outdoor/outdoor
Abnormal main-sub user interface communication
Main code Contents
System mismatch. Wrong type of indoor units
combined. Indoor unit malfunction.
Connection malfunction over indoor units or type
mismatch
Centralised address duplication
Malfunction in communication centralised control
device - indoor unit
Auto address malfunction (inconsistency)
Auto address malfunction (inconsistency)
14.2 Symptoms that are not air
conditioner troubles
Following symptoms are not air conditioner troubles:
14.2.1 Symptom: The system does not operate
▪ The air conditioner does not start immediately after the ON/OFF
button on the user interface is pressed. If the operation lamp
lights, the system is in normal condition. To prevent overloading of
the compressor motor, the air conditioner starts 5 minutes after it
is turned ON again in case it was turned OFF just before. The
same starting delay occurs after the operation mode selector
button was used.
▪ If "Under Centralized Control" is displayed on the user interface,
pressing the operation button causes the display to blink for a few
seconds. The blinking display indicates that the user interface
cannot be used.
▪ The system does not start immediately after the power supply is
turned on. Wait one minute until the micro computer is prepared
for operation.
14.2.2 Symptom: Cool/Heat cannot be changed
over
▪ When the display shows (change-over under centralized
control), it shows that this is a slave user interface.
▪ When the cool/heat changeover remote control switch is installed
and the display shows (change-over under centralized
control), this is because cool/heat changeover is controlled by the
cool/ heat changeover remote control switch. Ask your dealer
where the remote control switch is installed.
14.2.3 Symptom: Fan operation is possible, but
cooling and heating do not work
Immediately after the power is turned on. The micro computer is
getting ready to operate and is performing a communication check
with all indoor units. Please wait 12 minutes (max.) till this process is
finished.
14.2.4 Symptom: The fan strength does not
correspond to the setting
The fan speed does not change even if the fan speed adjustment
button in pressed. During heating operation, when the room
temperature reaches the set temperature, the outdoor unit goes off
and the indoor unit changes to whisper fan speed. This is to prevent
cold air blowing directly on occupants of the room. The fan speed
will not change even when another indoor unit is in heating
operation, if the button is pressed.
Содержание
- Installation and operation 1
- Manual 1
- Vrv iv system air conditioner 1
- About the box 3 2
- About the documentation 3 2
- About the system 28 2
- About the units and options 4 2
- Commissioning 21 2
- Configuration 18 2
- For the installer 3 2
- For the user 28 2
- Installation 7 2
- Installation and operation manual 2
- Maintenance and service 30 2
- Operation 28 2
- Preparation 4 2
- Table of contents 2
- Technical data 25 2
- Troubleshooting 22 2
- Troubleshooting 31 2
- User interface 28 2
- About the box 3
- About the documentation 3
- About this document 3
- Accessory pipes diameters 3
- After filling in this table please put it on the switch box cover 3
- Be sure to fill out the blanks which are needed for after sale services 3
- Calculation of additional refrigerant charging amount 3
- Disposal 33 3
- For details concerning piping selection and calculation or how to operate the leak detection function please refer to the installation manual 3
- For the installer 3
- Id øa 3
- Id øb 3
- Od øb 3
- Outdoor unit 3
- Record for settings contents see installation manual 3
- Record of additional refrigerant charge amount and result of leak check operation 3
- Record of indoor unit model and installation site 3
- Relocation 33 3
- To remove the accessories from the outdoor unit 3
- To remove the transportation stay 3
- About the outdoor unit 4
- About the units and options 4
- Additional installation site requirements of the outdoor unit in cold climates 4
- Installation site requirements of the outdoor unit 4
- Preparation 4
- Preparing installation site 4
- Preparing refrigerant piping 4
- Refrigerant piping requirements 4
- System layout 4
- A b b b 5
- A b c piping between outdoor unit and first refrigerant branch kit 5
- A e b c 5
- D piping between refrigerant branch kits 5
- E piping between refrigerant branch kit and indoor unit 5
- Preparation 5
- To select the piping size 5
- Multiple outdoor units possible layouts 6
- Preparation 6
- To select refrigerant branch kits 6
- Installation 7
- Opening the units 7
- Preparing electrical wiring 7
- Safety device requirements 7
- To open the electrical component box of the outdoor unit 7
- To open the outdoor unit 7
- Connecting the refrigerant piping 8
- Installation 8
- Mounting the outdoor unit 8
- To provide the installation structure 8
- To route the refrigerant piping 8
- Installation 9
- Multiple outdoor units knockout holes 9
- To connect the multi connection piping kit 9
- To connect the refrigerant piping to the outdoor unit 9
- To handle the stop valve 9
- To open the stop valve 9
- To protect against contamination 9
- Using the stop valve and service port 9
- Installation 10
- Tightening torques 10
- To close the stop valve 10
- To handle the service port 10
- To handle the stop valve cover 10
- To remove the pinched pipes 10
- About checking the refrigerant piping 11
- Checking refrigerant piping general guidelines 11
- Checking refrigerant piping setup 11
- Checking the refrigerant piping 11
- Installation 11
- Charging refrigerant 12
- Installation 12
- Precautions when charging refrigerant 12
- To check for leaks pressure leak test 12
- To check for leaks vacuum leak test 12
- To insulate the refrigerant piping 12
- To perform a leak test 12
- To perform vacuum drying 12
- About charging refrigerant 13
- Installation 13
- To charge refrigerant flow chart 13
- To determine the additional refrigerant amount 13
- Charging refrigerant 14
- Installation 14
- Pre charging refrigerant 14
- Installation 15
- Step 6 to manually charge refrigerant 15
- To charge refrigerant 15
- Checks after charging refrigerant 16
- Connecting the electrical wiring 16
- Error codes when charging refrigerant 16
- Field wiring overview 16
- Guidelines when knocking out knockout holes 16
- Installation 16
- To route and fix the transmission wiring 16
- A b c d e 17
- D d e f 17
- Hp 10 16 hp 17
- Installation 17
- To connect the power supply 17
- To connect the transmission wiring 17
- To finish the transmission wiring 17
- To route and fix the power supply 17
- A b c d 18
- About making field settings 18
- Configuration 18
- Field setting components 18
- J k h i 18
- Making field settings 18
- Configuration 19
- To access mode 1 or 2 19
- To access the field setting components 19
- To use mode 1 19
- To use mode 2 19
- Configuration 20
- Mode 1 monitoring settings 20
- Mode 2 field settings 20
- Checklist before commissioning 21
- Commissioning 21
- Precautions when commissioning 21
- About test run 22
- Correcting after abnormal completion of the test run 22
- Solving problems based on error codes 22
- To perform a test run 22
- Troubleshooting 22
- Error codes overview 23
- Troubleshooting 23
- Troubleshooting 24
- Service space outdoor unit 25
- Technical data 25
- Further specifications can be found in the technical engineering data 26
- In case of an installation site where only the sides a b have 26
- In case of an installation site where sides a b c d have 26
- Information 26
- Mm to avoid accumulation of ice in between the outdoor units 26
- Obstacles the wall heights have no influence on any indicated service space dimensions 26
- Obstacles the wall heights of sides a c have no impact on service space dimensions refer to the figure above for impact of wall heights of sides b d on service space dimensions 26
- Piping diagram outdoor unit 26
- Piping diagram rxytq10 12 26
- Piping diagram rxytq8 26
- Technical data 26
- The installation space required on these drawings are for full load 26
- The service space dimensions in above figure are based on cooling operation at 46 c ambient temperature standard conditions 26
- Piping diagram rxytq14 16 27
- Technical data 27
- About cooling heating fan only and automatic operation 28
- About operating the system 28
- About the heating operation 28
- About the system 28
- For the user 28
- Operating the system 28
- Operation 28
- Operation range 28
- To operate the system without cool heat changeover remote control switch 28
- User interface 28
- About the air flow flap 29
- About the dry program 29
- Adjusting the air flow direction 29
- Operation 29
- To operate the system with cool heat changeover remote control switch 29
- To use the dry program with cool heat changeover remote control switch 29
- To use the dry program without cool heat changeover remote control switch 29
- Using the dry program 29
- About setting the master user interface 30
- About the refrigerant 30
- After sales service and warranty 30
- Maintenance and service 30
- Setting the master user interface 30
- Warranty period 30
- Error codes overview 31
- Recommended maintenance and inspection 31
- Troubleshooting 31
- Symptom cool heat cannot be changed over 32
- Symptom fan operation is possible but cooling and heating do not work 32
- Symptom the fan strength does not correspond to the setting 32
- Symptom the system does not operate 32
- Symptoms that are not air conditioner troubles 32
- Troubleshooting 32
- 0 symptom noise of air conditioners 33
- 1 symptom noise of air conditioners 33
- 2 symptom dust comes out of the unit 33
- 3 symptom the units can give off odours 33
- 4 symptom the outdoor unit fan does not 33
- 5 symptom the display shows 88 33
- 6 symptom the compressor in the outdoor 33
- 7 symptom the inside of an outdoor unit is 33
- 8 symptom hot air can be felt when the 33
- Disposal 33
- Indoor unit is stopped 33
- Indoor unit outdoor unit 33
- Outdoor unit 33
- Relocation 33
- Symptom noise of air conditioners indoor unit 33
- Symptom the fan direction does not correspond to the setting 33
- Symptom the user interface display reads u4 or u5 and stops but then restarts after a few minutes 33
- Symptom white mist comes out of a unit indoor unit 33
- Symptom white mist comes out of a unit indoor unit outdoor unit 33
- Unit does not stop after a short heating operation 33
- Warm even when the unit has stopped 33
- Copyright 2015 daikin 36
- P388987 1c 36
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