Installation Guide
Tools Needed:
- Refrigeration manifold gauge set
- Vacuum pump
- Tube cutter and flaring tool
- Torque wrench
- Multimeter
- Level
- Drill with hole saw
Step-by-Step Installation
- Site Selection: Choose appropriate location for outdoor unit with proper clearance and indoor unit placement in ceiling space.
- Ductwork Planning: Design duct layout ensuring proper airflow distribution and return air pathways.
- Mounting Indoor Unit: Securely mount the indoor unit in ceiling space with proper suspension and leveling.
- Install Outdoor Unit: Place outdoor unit on stable pad with minimum clearance requirements as specified.
- Refrigerant Piping: Connect refrigerant lines using proper brazing techniques, ensuring nitrogen purge during brazing.
- Electrical Connections: Connect power supply and control wiring following local electrical codes and manufacturer specifications.
- Duct Connection: Connect supply and return ducts to indoor unit with proper sealing.
- System Evacuation: Evacuate system to 500 microns or less to remove moisture and non-condensables.
- Charge Refrigerant: Charge system with specified amount of refrigerant according to line length.
- System Testing: Test operation in cooling and heating modes, check airflow, and verify thermostat control.
Specifications
| Model Series | FDXM / RXM Series |
| System Type | Ducted Split System |
| Cooling Capacity | 2.5 - 14.0 kW |
| Heating Capacity | 2.8 - 16.0 kW |
| Energy Rating (Cooling) | Up to 6.1 Stars |
| Energy Rating (Heating) | Up to 5.0 Stars |
| Refrigerant Type | R-410A |
| Power Supply | 230V, 50Hz, 1 Phase |
| Indoor Unit Noise Level | As low as 19 dB(A) |
| Outdoor Unit Noise Level | As low as 48 dB(A) |
| Operating Temperature (Cooling) | 10°C to 46°C Outdoor |
| Operating Temperature (Heating) | -15°C to 24°C Outdoor |
| Airflow (Indoor Unit) | Up to 1,800 m³/h |
| Dimensions (Indoor Unit) | Varies by model |
Warranty Information
- Full Warranty: 5 years parts and labor
- Compressor Warranty: 7 years on inverter compressor
- Extended Warranty: Optional extended coverage available
- Installation Requirements: Warranty valid only when installed by licensed technician
For warranty service, contact Daikin Customer Service at 1300 305 402 or visit Daikin.com.au
Key Features
Inverter Technology
Daikin's advanced inverter technology adjusts compressor speed to match cooling/heating demand, providing precise temperature control and significant energy savings.
Coanda Airflow
Intelligent airflow control that spreads air along the ceiling for even temperature distribution without direct drafts on occupants.
Intelligent Eye
Presence sensor detects room occupancy and adjusts operation to save energy when rooms are unoccupied.
3D Airflow
Advanced airflow control with multiple vanes and patterns to distribute air evenly throughout the entire room.
Daikin Intelligent Touch Controller
Sophisticated touchscreen controller with intuitive interface, scheduling capabilities, and advanced system monitoring.
Powerful Defrost System
Intelligent defrost cycle that minimizes heating interruption during cold weather operation.
Operation Modes
Cooling Mode
Standard cooling operation with temperature range 18°C - 32°C
Heating Mode
Efficient heating operation with temperature range 16°C - 30°C
Auto Mode
System automatically selects cooling or heating based on room temperature
Dry Mode
Dehumidification function that removes excess moisture without overcooling
Fan Mode
Air circulation without cooling or heating, with multiple fan speeds
Quiet Mode
Reduced noise operation for nighttime or quiet environments
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| System not starting | Power failure, circuit breaker tripped, emergency stop activated | Check power supply, reset circuit breaker, check emergency stop switch |
| Poor cooling/heating | Dirty filters, low refrigerant, blocked airflow | Clean filters, check refrigerant charge, clear obstructions |
| Unusual noises | Loose parts, debris in fan, vibration | Tighten components, clean fan blades, check mounting |
| Water leakage | Clogged drain line, improper slope, frozen coil | Clear drain line, ensure proper drainage, check for ice buildup |
| Error code displayed | System fault detected | Refer to error code chart in manual |
| Fan not operating | Motor failure, capacitor issue, control board fault | Check motor, test capacitor, inspect control board |
Common Error Codes
- U0: Refrigerant shortage - Check for leaks and charge
- U2: Low voltage or phase loss - Check power supply
- U4: Communication error between units - Check wiring
- E5: Outdoor unit protection - Check for overload
- E6: Indoor unit protection - Check fan motor
- H9: Outdoor temperature sensor error - Check sensor
- J3: Discharge temperature sensor error - Check sensor
- L5: Inverter compressor overload - Check for restrictions
Manual Downloads
Current Model Manuals
FDXM50F / RXM50F
5.0kW Ducted System
FDXM71F / RXM71F
7.1kW Ducted System
FDXM100F / RXM100F
10.0kW Ducted System
FDXM140F / RXM140F
14.0kW Ducted System
Popular Previous Models
FDYQ / RZQ Series
Previous Generation
FDXS / RXS Series
Standard Efficiency
FDFQ / RZQ Series
Floor Console Models
FDUT / RXUT Series
Ultra High Efficiency