Daikin RXYQ5-48MAY1 Manuals

Manuals and User Guides for Daikin RXYQ5-48MAY1. We have 1 Daikin RXYQ5-48MAY1 manual available for free PDF download: Service Manual

Daikin RXYQ5-48MAY1 Service Manual

Daikin RXYQ5-48MAY1 Service Manual (352 pages)

R410A Heat Pump 50Hz  
Brand: Daikin | Category: Heat Pump | Size: 16.11 MB
Table of contents
Table Of Contents2................................................................................................................................................................
Safety Cautions7................................................................................................................................................................
Part 1 General Information12................................................................................................................................................................
External Appearance14................................................................................................................................................................
Outdoor Units15................................................................................................................................................................
Combination Of Outdoor Units16................................................................................................................................................................
Model Selection19................................................................................................................................................................
Part 2 Specifications20................................................................................................................................................................
Specifications21................................................................................................................................................................
Indoor Units32................................................................................................................................................................
Ceiling Suspended Type46................................................................................................................................................................
Part 3 Refrigerant Circuit60................................................................................................................................................................
Refrigerant Circuit61................................................................................................................................................................
Rxyq8ma, 10ma, 12ma63................................................................................................................................................................
Rxyq14ma, 16ma65................................................................................................................................................................
Refrigerant System67................................................................................................................................................................
Functional Parts Layout68................................................................................................................................................................
Refrigerant Flow For Each Operation Mode71................................................................................................................................................................
Part 4 Function84................................................................................................................................................................
Function General85................................................................................................................................................................
Operation Mode86................................................................................................................................................................
Basic Control87................................................................................................................................................................
Compressor Pi Control88................................................................................................................................................................
Electronic Expansion Valve Pi Control94................................................................................................................................................................
Outdoor Unit Fan Control In Cooling Operation95................................................................................................................................................................
Special Control96................................................................................................................................................................
Startup Control96................................................................................................................................................................
Oil Return Operation97................................................................................................................................................................
Si3998................................................................................................................................................................
Defrosting Operation99................................................................................................................................................................
Pump-down Residual Operation100................................................................................................................................................................
Restart Standby101................................................................................................................................................................
Crankcase Heater Control101................................................................................................................................................................
Stopping Operation102................................................................................................................................................................
Pressure Equalization Prior To Startup104................................................................................................................................................................
Protection Control105................................................................................................................................................................
High Pressure Protection Control105................................................................................................................................................................
Low Pressure Protection Control106................................................................................................................................................................
Discharge Pipe Protection Control107................................................................................................................................................................
Inverter Protection Control108................................................................................................................................................................
Std Compressor Overload Protection109................................................................................................................................................................
Other Control110................................................................................................................................................................
Emergency Operation111................................................................................................................................................................
Demand Operation113................................................................................................................................................................
Heating Operation Prohibition113................................................................................................................................................................
Drain Pump Control114................................................................................................................................................................
Louver Control For Preventing Ceiling Dirt116................................................................................................................................................................
Thermostat Sensor In Remote Controller117................................................................................................................................................................
Thermostat Control While In Normal Operation119................................................................................................................................................................
Thermostat Control In Dry Operation119................................................................................................................................................................
Freeze Prevention120................................................................................................................................................................
Heater Control124................................................................................................................................................................
List Of Swing Flap Operations125................................................................................................................................................................
Part 5 Test Operation126................................................................................................................................................................
Test Operation127................................................................................................................................................................
Operation When Power Is Turned On131................................................................................................................................................................
Outdoor Unit Pc Board Layout132................................................................................................................................................................
Field Setting133................................................................................................................................................................
Detailed Explanation Of Setting Modes138................................................................................................................................................................
Field Setting From Outdoor Unit146................................................................................................................................................................
Part 6 Troubleshooting174................................................................................................................................................................
Symptom-based Troubleshooting177................................................................................................................................................................
Troubleshooting By Remote Controller180................................................................................................................................................................
Self-diagnosis By Wired Remote Controller181................................................................................................................................................................
Self-diagnosis By Wireless Remote Controller182................................................................................................................................................................
Operation Of The Remote Controller's Inspection Test Operation Button185................................................................................................................................................................
Remote Controller Service Mode186................................................................................................................................................................
Remote Controller Self-diagnosis Function188................................................................................................................................................................
Malfunction Code Indication By Outdoor Unit Pcb191................................................................................................................................................................
Troubleshooting191................................................................................................................................................................
Error Of External Protection Device193................................................................................................................................................................
Drain Level Above Limit202................................................................................................................................................................
Actuation Of High Pressure Switch209................................................................................................................................................................
Actuation Of Low Pressure Sensor210................................................................................................................................................................
E5" Compressor Motor Lock211................................................................................................................................................................
E6" Std Compressor Motor Overcurrent/lock212................................................................................................................................................................
F6" Refrigerant Overcharged218................................................................................................................................................................
H7" Abnormal Outdoor Fan Motor Signal219................................................................................................................................................................
J8" Malfunction Of Oil Equalizing Pipe Thermistor (r7t)225................................................................................................................................................................
J9" Malfunction Of Receiver Gas Pipe Thermistor (r5t)226................................................................................................................................................................
Inverter Compressor Abnormal230................................................................................................................................................................
Inverter Current Abnormal231................................................................................................................................................................
Inverter Start Up Error232................................................................................................................................................................
Inverter And Control Pc Board233................................................................................................................................................................
Temperature Rise Sensor236................................................................................................................................................................
Electronic Expansion Valve Failure237................................................................................................................................................................
U1" Reverse Phase, Open Phase238................................................................................................................................................................
U2" Power Supply Insufficient Or Instantaneous Failure239................................................................................................................................................................
U4" Malfunction Of Transmission Between Indoor Units242................................................................................................................................................................
And Indoor Unit244................................................................................................................................................................
U7" Malfunction Of Transmission Between Outdoor Units245................................................................................................................................................................
Slave Remote Controllers247................................................................................................................................................................
Outdoor Units In The Same System248................................................................................................................................................................
Ua" Excessive Number Of Indoor Units250................................................................................................................................................................
Uc" Address Duplication Of Central Remote Controller251................................................................................................................................................................
Remote Controller And Indoor Unit252................................................................................................................................................................
Uf" Refrigerant System Not Set, Incompatible Wiring/piping254................................................................................................................................................................
Uh" Malfunction Of System, Refrigerant System Address Undefined255................................................................................................................................................................
Troubleshooting (op: Central Remote Controller)256................................................................................................................................................................
Troubleshooting (op: Schedule Timer)262................................................................................................................................................................
Operation Lamp Blinks269................................................................................................................................................................
Repeats Double Blink274................................................................................................................................................................
Part 7 Appendix278................................................................................................................................................................
Piping Diagrams279................................................................................................................................................................
Indoor Unit282................................................................................................................................................................
Wiring Diagrams For Reference288................................................................................................................................................................
Field Wiring291................................................................................................................................................................
List Of Electrical And Functional Parts312................................................................................................................................................................
Outdoor Unit312................................................................................................................................................................
Indoor Side314................................................................................................................................................................
Option List320................................................................................................................................................................
System Configuration321................................................................................................................................................................
Option Lists (outdoor Unit)322................................................................................................................................................................
Piping Installation Point323................................................................................................................................................................
The Example Of A Wrong Pattern324................................................................................................................................................................
Selection Of Pipe Size, Joints And Header325................................................................................................................................................................
6.2 Rxyq18may1, Rxyq20may1, Rxyq22may1, Rxyq24may1327................................................................................................................................................................
Outdoor Unit Multi Connection Piping Kit329................................................................................................................................................................
Pressure Sensor332................................................................................................................................................................
Method Of Replacing The Inverter's Power Transistors And Diode Modules333................................................................................................................................................................
Part 8 Precautions For New Refrigerant (r410a)336................................................................................................................................................................
Precautions For New Refrigerant (r410a)337................................................................................................................................................................
Refrigerant Cylinders339................................................................................................................................................................
Service Tools340................................................................................................................................................................

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