Fujitsu AOU36RLXFZ1 Installation Manual

The Fujitsu AOU36RLXFZ1 is a high-efficiency split-type air conditioning unit with advanced features including inverter technology, multiple operation modes, energy-saving functions, and smart control capabilities. This manual provides comprehensive installation guidelines, safety precautions, technical specifications, and setup procedures to ensure proper installation and optimal performance.

1. Safety Precautions 2. Unit Specifications 3. Installation Requirements 4. Installation Procedure 5. Electrical Connections 6. Refrigerant Piping 7. Drainage System 8. Initial Setup 9. Commissioning 10. Maintenance Guidelines 11. Troubleshooting

Safety Precautions

Before installation, read all safety instructions carefully to prevent injury and equipment damage.

Warning Type	Precaution
Electrical Safety	Disconnect power before installation; use proper grounding
Refrigerant Handling	Use certified technicians only; avoid open flames
Lifting Safety	Use proper lifting equipment; secure unit during installation
Installation Location	Ensure adequate ventilation; avoid flammable areas
Tools Required	Use appropriate tools; wear protective equipment

Unit Specifications

Model: AOU36RLXFZ1
Cooling Capacity: 36,000 BTU/h
Power Supply: 208-230V, 60Hz
Refrigerant: R410A
Operating Temperature: Cooling: 14°F to 115°F
Dimensions (Outdoor Unit): 35.4" x 13.8" x 26.8"
Weight: 154.3 lbs
Sound Level: 53 dB(A)

Installation Requirements

Ensure all prerequisites are met before beginning installation.

Location Selection: Choose stable, vibration-free surface with proper clearance
Clearance Requirements: Minimum 12 inches on all sides for airflow
Mounting Surface: Concrete pad or reinforced mounting brackets
Tools Needed: Torque wrench, flare tools, vacuum pump, manifold gauge
Materials: Copper piping, insulation, electrical wiring, mounting hardware

WARNING! Install only by qualified personnel. Improper installation may void warranty.

Installation Procedure

Follow these steps for proper outdoor unit installation.

Position the unit: Place on stable surface with proper clearance
Mounting: Secure with vibration-absorbing pads and bolts
Pipe Routing: Plan shortest route between indoor and outdoor units
Wall Penetration: Use wall sleeve; seal openings properly
Unit Leveling: Ensure unit is perfectly level for drainage

CAUTION! Do not install near bedrooms or noise-sensitive areas.

Electrical Connections

All electrical work must comply with local codes and regulations.

Connection	Specification
Power Supply	208-230V, 60Hz, single phase
Circuit Breaker	30A dedicated circuit required
Wire Size	Minimum 10 AWG copper wire
Grounding	Proper equipment grounding mandatory
Communication Cable	Shielded 2-core cable between units

Refrigerant Piping

Proper piping installation is critical for system performance.

Pipe Selection: Use clean, dehydrated copper pipes
Pipe Sizing: Liquid line 1/4", gas line 1/2"
Flaring: Create perfect 45-degree flares; deburr edges
Connection: Apply refrigerant oil to flare faces before tightening
Torque: Tighten to specified torque values (22-25 ft-lbs)

WARNING! Never use existing R22 piping; contamination will damage system.

Drainage System

Proper drainage prevents water damage and ensures efficient operation.

Use PVC or polyethylene drain pipe
Maintain minimum 1/4" per foot slope
Install drain trap if required by local codes
Test drainage before completing installation
Insulate drain pipes in unconditioned spaces

Initial Setup

Complete system setup before first operation.

Leak Testing: Pressurize system with nitrogen to 500 psi
Evacuation: Pull vacuum to 500 microns; hold for 15 minutes
Refrigerant Charge: Release factory charge; weigh additional charge if needed
Electrical Check: Verify all connections; test voltage and amperage
System Test: Run unit in cooling mode; check pressures and temperatures

Commissioning

Final verification and documentation.

Check Item	Acceptance Criteria
Refrigerant Pressure	Within manufacturer specifications
Temperature Differential	15-20°F between supply and return
Electrical Consumption	Within nameplate ratings
Noise Level	Below specified maximum
Drainage	Free flowing; no blockages

Maintenance Guidelines

Regular maintenance ensures optimal performance and longevity.

Clean filters monthly during operation
Inspect coils quarterly; clean as needed
Check refrigerant charge annually
Verify electrical connections every 6 months
Professional service recommended annually

Troubleshooting

Symptom	Possible Cause	Corrective Action
Unit not starting	Power supply issue	Check circuit breaker; verify voltage
Poor cooling	Dirty filters/low refrigerant	Clean filters; check refrigerant charge
Water leakage	Clogged drain line	Clear drain line; check slope
Unusual noise	Loose parts/vibration	Tighten mounting bolts; check fan
Error codes	System faults	Refer to service manual; contact technician

Service Contact: Fujitsu Technical Support: 1-800-831-7951

Warranty: Limited warranty applies; register online at www.fujitsugeneral.com