Daikin VRV III-S RXYMQ36/48PVJU Service Manual R410A (60Hz) PDF

Description

Daikin VRV III-S RXYMQ36/48PVJU Service Manual R410A (60Hz) PDF DOWNLOAD

Description

If you’re diagnosing or servicing a Daikin VRV III-S Heat Pump system (R-410A, 60Hz), this manual gives you the exact factory procedures for setup, control logic, diagnostics, and repairs—including a full error code section and wiring/piping diagrams.

✅ Models Covered (Outdoor Unit)

• RXYMQ36PVJU

• RXYMQ48PVJU

✅ Indoor Unit Types Listed (connectable series overview)

Includes indoor unit families such as:

• Ceiling cassette (multi-flow) FXFQ

• 2’×2’ 4-way cassette FXZQ

• Slim duct FXDQ

• Duct FXMQ

• Ceiling suspended FXHQ

• Wall mounted FXAQ

• Floor standing FXLQ

• Concealed floor standing FXNQ

📑 What’s Inside (Clean, categorized contents)

1) General Information

• Model names of indoor/outdoor units

• External appearance (indoor & outdoor)

• Capacity range

2) Specifications

• Outdoor unit specifications

• Indoor unit specifications

3) Electrical & Functional Parts

• Electrical/functional parts list (outdoor & indoor)

4) Refrigerant Circuit

• Refrigerant circuit (RXYMQ36/48)

• Functional parts layout

5) Functions & Controls (how the system operates)

• Operation modes + basic control logic

• Compressor PI control

• EEV PI control

• Fan control (cooling)

• Special controls: startup, oil return, defrost, pump down residual, restart standby, stopping

• Protection controls: high/low pressure, discharge pipe, inverter protection

• Other controls: demand operation, heating prohibition

• Indoor unit control outline (drain pump, louver controls, thermostat sensor, freeze prevention, swing flap operation)

6) Test Operation & Field Settings

• Test operation procedure and power-on behavior

• Outdoor unit PCB layout

• Field settings from remote controller

• Field settings from outdoor unit

7) Troubleshooting (big technician section)

• Symptom-based troubleshooting

• Troubleshooting via wired/wireless remote controller

• Maintenance mode + self-diagnosis

• Error code troubleshooting (A0, A1, A3, A6, A7, A9, AF, CJ, E3, E4, E5, E7, F3, U0, U2, U4, U5, UA, etc.)

• Centralized control / unified controller troubleshooting

8) Appendix

• Piping diagrams (outdoor & indoor)

• Wiring diagrams (outdoor, field wiring, indoor)

• Option list (controllers/outdoor)

• Connection examples

• Thermistor resistance vs temperature characteristics

• Pressure sensor details

9) R-410A Service Precautions

• Refrigerant handling outline

• Refrigerant cylinders

• Service tools guidance

📌 File Details

Cut diagnostic time fast—this manual gives you the exact error code logic, field settings, wiring, and control details technicians use every day. Download instantly and get your VRV III-S system running right again.