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Daikin Manuals
Heat Pump
VRV RXYMQ4AVMK
Service manual
Daikin VRV RXYMQ4AVMK Service Manual
R-410a heat pump 50/60 hz
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Part 1 General Information
Table of Contents
Outdoor Unit
VRV Indoor Unit
Model Names
External Appearance
Outdoor Unit
VRV Indoor Unit
Capacity Range
Connection Ratio
Outdoor Unit Combinations
Specifications
Refrigerant Circuit Part 2
Outdoor Unit
Refrigerant Circuit (Piping Diagrams)
Refrigerant Circuit Part
VRV Indoor Unit
Functional Parts Layout
Rxymq4Avmk
Rxymq4/5/6Ayfk
Part 3 Remote Controller
Applicable Models
Brc1E63
Names and Functions
BRC1H81 Series
BRC4M Series
Main/Sub Setting
Wired Remote Controller (BRC1E63)
Wired Remote Controller (BRC1H81 Series)
When Wireless Remote Controller Is Used Together
Address Setting for Wireless Remote Controller
Setting for Signal Receiver PCB
Setting for BRC4M Series
Multiple Settings A/B
Brc1E63
Centralized Control Group No. Setting
BRC1H81 Series
Group No. Setting Example
Brc1E63
Service Settings Menu, Maintenance Menu
BRC1H81 Series
Part 4 Functions and Control
Operation Flowchart
Abnormal Shutdown
Stop Control
When System Is in Stop Control
Crankcase Heater Control
Restart Standby
Standby Control
Cooling Startup Control
Heating Startup Control
Startup Control
List of Functions in Normal Control
Normal Control
Compressor Control
Compressor Capacity Control
Compressor Step Control
Electronic Expansion Valve Control
Step Control of Outdoor Fans
High Pressure Protection Control
Protection Control
Discharge Pipe Protection Control
Low Pressure Protection Control
Inverter Protection Control
Heating Operation Prohibition
Overload Protection Control
Oil Return Control
Pump down Residual Control
Special Control
Defrost Control
Outline of Control (Indoor Unit)
Set Temperature and Control Target Temperature
Thermostat Control
Automatic Airflow Rate Control
Airflow Direction Control
Auto Draft Reducing Control (FXFSQ-AR Only)
Eco Full Automatic Control (FXFSQ-AR Only)
Drain Pump Control
Freeze-Up Prevention Control
Dew Condensation Prevention Control
Electronic Expansion Valve Control
Circulation Airflow (FXFSQ-AR Only)
Hot Start Control (in Heating Operation Only)
Heater Control (Optional PCB KRP1B Series Is Required.)
Part 5 Field Settings and Test Operation
Field Settings for Indoor Unit
Field Settings with Remote Controller
List of Field Settings for Indoor Unit
Applicable Field Settings
Details of Field Settings for Indoor Unit
Operation Control Mode
Field Settings for Outdoor Unit
Function Setting
Settings by DIP Switches
Settings by BS Buttons
Normal Mode
Monitor Mode (Mode 1)
Setting Mode (Mode 2)
Eco Mode Setting
Night-Time Low Noise Operation and Demand Operation
Checkpoints
Checks before Test Operation
Test Operation
Test Operation Procedure
Turn Power on
Part 6 Service Diagnosis
Precautions for Maintenance
Servicing Items to be Confirmed
Troubleshooting
Refrigerant Properties (R-410A)
Symptom-Based Troubleshooting
With Optional Infrared Presence/Floor Sensor
For All Outdoor Units
Brc1E63
Error Code Via Remote Controller
BRC1H81 Series
BRC4M Series
Error Code Via Outdoor Unit PCB
Error Codes and Descriptions
Troubleshooting by Error Code
Error Codes (Sub Codes)
External Protection Device Abnormality
Indoor Unit PCB Abnormality
Drain Level Control System Abnormality
Indoor Fan Motor Lock, Overload
Indoor Fan Motor Abnormality
Power Supply Voltage Abnormality
Electronic Expansion Valve Coil Abnormality, Dust Clogging
Humidifier System Abnormality
Auto Grille Unit Error
Defective Capacity Setting
Transmission Abnormality (between Indoor Unit PCB and Fan PCB)
Transmission Error
Transmission Error (between Indoor Unit PCB and Auto Grille Control PCB)
Thermistor Abnormality
Combination Abnormality (between Indoor Unit PCB and Fan PCB)
Capacity Setting Abnormality
Indoor Unit PCB Abnormality
Infrared Presence/Floor Sensor Error
Remote Controller Thermistor Abnormality
Outdoor Unit Main PCB Abnormality
Current Leakage Detection
Missing of Leakage Detection Core
Activation of High Pressure Switch
Activation of Low Pressure Sensor
Compressor Motor Lock
Outdoor Fan Motor Abnormality
Electronic Expansion Valve Coil Abnormality
Discharge Pipe Temperature Abnormality
Wet Alarm
Refrigerant Overcharged
Harness Abnormality (between Outdoor Unit Main PCB and Inverter PCB)
OL Activation (Compressor Overload)
Outdoor Fan PCB Abnormality
Thermistor Abnormality
High Pressure Sensor Abnormality
Low Pressure Sensor Abnormality
Inverter Circuit Abnormality
Momentary Power Failure During Test Operation
Inverter Radiation Fin Temperature Rise Abnormality
Compressor Instantaneous Overcurrent
Compressor Overcurrent
Compressor Startup Abnormality
Transmission Error between Microcomputers on Outdoor Unit Main PCB
Transmission Error between Inverter PCB and Outdoor Unit Main PCB
Inverter Circuit Capacitor High Voltage
Power Supply Voltage Imbalance
Reactor Temperature Abnormality
Inverter Radiation Fin Temperature Abnormality
Field Setting after Replacing Outdoor Unit Main PCB Abnormality or Combination of PCB Abnormality
Refrigerant Shortage Warning (Cooling)
Refrigerant Shortage Warning (Heating)
Refrigerant Shortage Abnormality (Heating Only)
Open Phase
Power Supply Insufficient or Instantaneous Abnormality
Check Operation Not Executed
Transmission Error between Indoor Units and Outdoor Units
Transmission Error between Remote Controller and Indoor Unit
Transmission Error between Outdoor Units
Transmission Error between Main and Sub Remote Controllers
Other Indoor Units and Outdoor Unit Abnormality
Improper Combination of Indoor Unit and Outdoor Unit, Indoor Unit and Remote Controller
Address Duplication of Centralized Controller
Transmission Error between Centralized Controller and Indoor Unit
System Not Set yet
System Abnormality, Refrigerant System Address Undefined
Check
High Pressure Check
Low Pressure Check
Superheat Operation Check
Power Transistor Check
Refrigerant Overcharge Check
Refrigerant Shortage Check
Vacuuming and Dehydration Procedure
Thermistor Check
Pressure Sensor Check
Broken Wire Check of the Relay Wires
Fan Motor Connector Check (Power Supply Cable)
Fan Motor Connector Check (Signal Cable)
Electronic Expansion Valve Coil Check
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Quick Links
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Outdoor Unit
2
Specifications
3
Outdoor Unit
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SiME332106E
Service
Manual
RXYMQ-A Series
Heat Pump 50/60 Hz
Table of
Contents
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Chapters
Part 1 General Information
14
Refrigerant Circuit Part 2
20
Part 3 Remote Controller
30
Part 4 Functions and Control
55
Part 5 Field Settings and Test Operation
89
Part 6 Service Diagnosis
145
Table of Contents
Troubleshooting
Servicing Items to be Confirmed
148
Symptom-based Troubleshooting
150
Troubleshooting by Error Code
159
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