Installation Guide
Tools Needed:
- Refrigeration manifold gauge set
- Vacuum pump
- Torque wrench
- Pipe cutter and flaring tool
- Multimeter
- Level
- Insulation materials
Step-by-Step Installation
- Site Selection: Choose appropriate location for outdoor unit with proper clearance and indoor unit placement considering ductwork layout.
- Ductwork Installation: Install properly sized ductwork with adequate insulation to prevent energy loss and condensation.
- Refrigerant Piping: Connect refrigerant lines between indoor and outdoor units using proper brazing techniques and nitrogen purging.
- Electrical Connection: Connect to dedicated circuit with proper voltage and amperage as specified in manual. Follow local electrical codes.
- Drain Line Installation: Install condensate drain line with proper slope and trap to ensure proper drainage.
- Vacuum and Charge: Evacuate system to proper vacuum level and charge with specified refrigerant type and quantity.
- System Testing: Test all functions including heating, cooling, fan speeds, and thermostat operation.
Specifications
| Model Series | ARU36RFLCT / AOU36RFLCT |
| Type | Ducted Split System |
| Cooling Capacity | 36,000 BTU/h (10.5 kW) |
| Heating Capacity | 38,000 BTU/h (11.1 kW) |
| Energy Efficiency Ratio (EER) | 12.5 |
| Heating Seasonal Performance Factor (HSPF) | 9.5 |
| Refrigerant Type | R-410A |
| Power Requirements | 208-230V, 60Hz, 1 Phase |
| Maximum Current | 18.5 A |
| Indoor Unit Noise Level | 38 dB (Low Speed) |
| Outdoor Unit Dimensions (HxWxD) | 32 x 35 x 28 inches |
| Indoor Unit Dimensions (HxWxD) | 22 x 42 x 20 inches |
| Maximum Duct Length | 50 feet equivalent |
Warranty Information
- Compressor Warranty: 10 years parts
- Parts Warranty: 5 years parts
- Labor Warranty: 1 year labor
- Registration: Warranty extension available with online registration within 90 days
For warranty service, contact Fujitsu Customer Service at 1-888-888-3424 or visit FujitsuGeneral.com
Key Features
Inverter Technology
Advanced DC inverter compressor adjusts speed to match cooling/heating demand, providing precise temperature control and significant energy savings compared to conventional systems.
Ducted Design
Hidden installation with ductwork distributing conditioned air throughout multiple rooms, maintaining consistent temperatures while preserving interior aesthetics.
Multi-Zone Capability
Compatible with zone control systems allowing independent temperature control in different areas, optimizing comfort and energy efficiency.
High Static Pressure
Powerful blower motor capable of handling extensive duct systems with multiple bends and long runs without compromising airflow.
Wi-Fi Connectivity
Compatible with Fujitsu Wi-Fi controllers for remote access via smartphone app, enabling scheduling, monitoring, and control from anywhere.
Quiet Operation
Specially designed compressor and fan system with sound-dampening materials for ultra-quiet operation, ideal for residential applications.
Operating Modes
Cooling Mode
Efficient cooling operation with adjustable temperature and fan speed settings for optimal comfort
Heating Mode
Heat pump operation for efficient heating even in low outdoor temperatures
Auto Mode
System automatically selects heating or cooling based on room temperature
Dry Mode
Dehumidification function that reduces humidity without significant cooling
Fan Only Mode
Circulates air without heating or cooling, with multiple fan speed options
Sleep Mode
Gradually adjusts temperature for optimal sleeping conditions and energy savings
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| System not turning on | Power outage, tripped breaker, thermostat issue | Check power supply, reset breaker, verify thermostat settings |
| Insufficient cooling/heating | Dirty filters, low refrigerant, blocked vents | Clean filters, check for leaks, ensure vents are unobstructed |
| Unusual noises | Loose parts, debris in fan, duct vibration | Tighten components, clear debris, secure ductwork |
| Water leakage | Clogged drain line, improper slope, frozen coil | Clear drain line, ensure proper drainage, check for ice buildup |
| System cycling on/off frequently | Dirty filters, thermostat location, oversized unit | Clean filters, relocate thermostat, verify proper sizing |
| Error codes displayed | Sensor failure, communication error, system fault | Refer to error code chart, check connections, contact technician |
Common Error Codes
- E01: Room temperature sensor error - Check sensor connection
- E03: Discharge temperature sensor error - Contact technician
- E06: Communication error between units - Check wiring connections
- E07: Outdoor unit fan motor error - Check fan operation
- E09: High pressure protection - Clean outdoor coil, check refrigerant
- E10: Low pressure protection - Check for refrigerant leaks
- E11: Compressor error - Contact service technician
- E12: Power module error - Check power supply and connections
Manual Downloads
Current Model Manuals
ARU36RFLCT
3 Ton Ducted Indoor Unit
AOU36RFLCT
3 Ton Outdoor Unit
ARU48RFLCT
4 Ton Ducted Indoor Unit
AOU48RFLCT
4 Ton Outdoor Unit
Popular Previous Models
ARU30RFLCT
2.5 Ton Ducted System
AOU30RFLCT
2.5 Ton Outdoor Unit
ARU24RFLCT
2 Ton Ducted System
AOU24RFLCT
2 Ton Outdoor Unit
Accessory Manuals
FJ-WIFI-1
Wi-Fi Controller Manual
FJ-TSTAT-2
Thermostat Installation Guide
FJ-ZONE-3
Zone Controller Manual
FJ-MAINT-4
Maintenance Guide