Fujitsu AC Manual

The Fujitsu Air Conditioner is a high-efficiency cooling and heating system featuring advanced inverter technology, multiple operation modes, intelligent temperature control, remote control operation, timer functions, air swing control, sleep mode, and energy-saving features. Designed for residential and commercial use with various capacity models. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: Indoor unit with LCD display, outdoor compressor unit, remote control, air filters, temperature sensors, and multiple operation modes.

Feature	Description
Inverter Technology	Energy-efficient compressor operation with variable speed
Operation Modes	Cool, Heat, Dry, Fan, Auto
Temperature Control	Precise ±0.5°C accuracy
Air Swing	Vertical and horizontal louvers with automatic swing
Timer Functions	24-hour on/off timer
Sleep Mode	Automatic temperature adjustment for comfortable sleep
Filter Indicator	Reminder for filter cleaning
Quiet Operation	Low noise levels for peaceful environment
Powerful Mode	Rapid cooling/heating when needed
Auto Restart	Resumes previous settings after power outage

Installation

Professional installation recommended. Unpack and inspect all components before installation.

1. Select installation location: Ensure proper clearance around indoor and outdoor units.
2. Mount indoor unit: Secure to wall with mounting bracket at recommended height.
3. Install outdoor unit: Place on stable surface with proper vibration isolation.
4. Connect refrigerant pipes: Ensure proper sealing and insulation.
5. Electrical connections: Connect to dedicated circuit with proper grounding.
6. Vacuum and charge: Evacuate system and charge with refrigerant.

WARNING! Installation must be performed by qualified technician. Incorrect installation may cause injury or equipment damage.

First-Time Setup

After installation, perform initial setup for optimal performance.

1. Power on unit: Turn on circuit breaker and press power button.
2. Remote control setup: Install batteries and pair with indoor unit.
3. Initial settings: Set language, temperature units (°C/°F), and time.
4. Test operation: Run unit in each mode to verify proper function.
5. Configure preferences: Set default temperature, fan speed, and mode.

CAUTION! Allow unit to stabilize for 10 minutes after first startup before changing settings.

Specifications

• Cooling Capacity: 9,000 - 24,000 BTU/h (varies by model)
• Heating Capacity: 9,000 - 24,000 BTU/h (varies by model)
• Power Supply: 208-230V, 60Hz
• Refrigerant: R410A
• Noise Level: 19-45 dB (indoor), 49-58 dB (outdoor)
• Air Flow: High/Medium/Low/Auto settings
• Dimensions: Varies by model series
• Weight: Indoor: 15-25 lbs, Outdoor: 55-130 lbs
• Operating Temp: Cooling: 14°F to 115°F, Heating: -13°F to 75°F

Controls and Settings

Access controls via remote control or indoor unit buttons. Front Panel: POWER, MODE, TEMP ▲/▼, FAN SPEED, TIMER.

Remote Control: POWER, MODE, TEMPERATURE, FAN SPEED, TIMER, SWING, SLEEP, TURBO, CLOCK, FILTER RESET.

Mode Selection: COOL, HEAT, DRY, FAN, AUTO. Temperature Setting: 16°C - 30°C (60°F - 86°F). Fan Speed: AUTO, LOW, MEDIUM, HIGH, QUIET. Timer: ON/OFF timer with 24-hour programming. Swing: Adjust vertical and horizontal air direction.

Remote Control Operation

Remote control functions and proper usage techniques.

1. Point remote directly at indoor unit signal receiver.
2. Maintain distance within 7 meters (23 feet).
3. Replace batteries when indicator dims or functions become unreliable.
4. Use MODE button to cycle through operation modes.
5. Adjust temperature with TEMP ▲/▼ buttons.
6. Set fan speed with FAN button.
7. Program timer functions for automatic operation.

Tip: Keep remote control away from direct sunlight and heat sources.

Maintenance and Cleaning

Regular maintenance ensures optimal performance and longevity.

1. Air Filter Cleaning: Remove and clean every 2 weeks during operation.
2. Outdoor Unit: Keep area clear of debris and vegetation.
3. Indoor Unit: Wipe with soft dry cloth; do not use chemicals.
4. Drainage System: Check for proper water drainage.
5. Professional Service: Annual maintenance by qualified technician.

WARNING! Always disconnect power before cleaning. Do not wash indoor unit with water.

Error Codes and Diagnostics

Common error codes displayed on indoor unit LCD.

Error Code	Description	Action
E1	Room temperature sensor error	Check sensor connection
E2	Pipe temperature sensor error	Check sensor connection
E3	Communication error	Check wiring between units
E4	Outdoor unit protection	Wait 3 minutes and restart
E5	Overcurrent protection	Check power supply
E6	Compressor overload	Allow unit to cool down

Energy Saving Tips

Maximize efficiency and reduce energy consumption.

• Set temperature to 24-26°C (75-78°F) in cooling mode
• Use AUTO fan speed for optimal efficiency
• Close doors and windows during operation
• Use timer function to avoid unnecessary operation
• Clean filters regularly for better airflow
• Use sleep mode during nighttime operation
• Ensure proper insulation of room

Regulatory Information

FCC Compliance: This device complies with Part 15 of FCC Rules. Energy Star Certified: Meets ENERGY STAR® requirements for energy efficiency. UL Listed: Certified for safety standards. Refrigerant Handling: Requires EPA 608 certification for service. For support, visit www.fujitsugeneral.com or contact 1-800-853-8573.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Unit not starting	Power supply/remote	Check circuit breaker; replace remote batteries
Poor cooling/heating	Dirty filters/settings	Clean air filters; check temperature setting
Water leakage	Clogged drain pipe	Clean drain pipe; ensure proper installation
Unusual noise	Loose parts/debris	Check for loose components; clean outdoor unit
Remote not working	Batteries/obstacles	Replace batteries; ensure clear line of sight
Unit cycles on/off	Thermostat location	Avoid heat sources near thermostat sensor

Reset: Turn off power for 10 minutes, then restart.

Service: 1-800-853-8573; www.fujitsugeneral.com