Fujitsu Cassette Air Conditioner Manual

The Fujitsu Cassette Air Conditioner is a ceiling-mounted unit designed for commercial and residential applications, featuring advanced inverter technology, multiple airflow directions, energy-efficient operation, remote control functionality, auto-swing louvers, timer settings, sleep mode, and comprehensive air filtration. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Operation Modes 8. Maintenance Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Ceiling-mounted cassette unit, Remote Control, Air filters, Airflow louvers, LED display, Drain connection, Power supply connector.

Feature	Description
Inverter technology	Energy-efficient temperature control with variable compressor speed
4-way airflow	Adjustable louvers for comprehensive room coverage
Auto-swing function	Automatic movement of air direction louvers
Multiple operation modes	Cooling, Heating, Dry, Fan, Auto
Timer functions	24-hour on/off timer settings
Sleep mode	Automatic temperature adjustment for comfortable sleep
Air filtration system	Washable filters with anti-bacterial coating
LED indicators	Display for operation status and error codes
Remote control	Infrared remote with full function control
Drain connection	Condensate removal system

Installation

Unpack and inspect contents. Ensure proper ceiling support.

Ceiling mounting: Install suspension bolts according to ceiling structure requirements.
Electrical connection: Connect to dedicated power circuit with proper grounding.
Drain pipe installation: Connect condensate drain pipe with proper slope.
Refrigerant piping: Connect refrigerant lines using flare connections.
Power supply: Connect to appropriate voltage (208-230V).

WARNING! Installation must be performed by qualified technicians only. Ensure proper electrical grounding.

First-Time Setup

Power on unit; follow initial setup procedure.

Remote control pairing: Point remote at unit and press POWER button.
Mode selection: Use MODE button to select desired operation (Cool, Heat, Dry, Fan, Auto).
Temperature setting: Adjust temperature using UP/DOWN arrows.
Fan speed: Set fan speed (Auto, Low, Medium, High).
Louver direction: Adjust airflow direction using SWING button.

CAUTION! Do not operate without proper installation and electrical connection.

Specifications

Cooling Capacity: 24,000 BTU/h
Heating Capacity: 26,000 BTU/h
Power Supply: 208-230V, 60Hz
Refrigerant: R410A
Airflow: 4-way directional, 1060 CFM maximum
Noise Level: 38 dB(A) in low speed mode
Dimensions: 950 x 950 x 270 mm
Weight: 38 kg
Operating Temp Range: Cooling: 19°C to 46°C, Heating: -15°C to 24°C

Controls and Settings

Access functions via remote control or unit buttons. Unit Controls: POWER, MODE, TEMP, FAN, SWING.

Remote: POWER, MODE, TEMP UP/DOWN, FAN SPEED, SWING, TIMER, SLEEP, FILTER RESET.

Operation Modes: COOL, HEAT, DRY, FAN, AUTO. Fan Speed: AUTO, LOW, MEDIUM, HIGH. Timer: 24-hour ON/OFF timer. Swing: Auto-swing or fixed position. Sleep Mode: Automatic temperature adjustment. Filter Reset: Reset filter cleaning reminder.

Connecting Devices

Power supply: Dedicated circuit. Remote control: Infrared signal. Optional accessories: Wired controller, centralized control system.

Ensure power is turned off before any electrical connections.
Connect to dedicated power circuit with proper circuit breaker.
For centralized control, connect communication cables as per wiring diagram.
Test all connections before powering on.

Tip: Use surge protector for power supply connection.

Operation Modes

Supports multiple operation modes for different comfort requirements.

Cooling Mode: For temperature reduction and dehumidification.
Heating Mode: For room heating during cold weather.
Dry Mode: For humidity reduction without significant cooling.
Fan Mode: For air circulation without temperature control.
Auto Mode: Automatic selection of cooling or heating based on room temperature.
Timer Operation: Set automatic start/stop times.
Sleep Mode: Gradually adjusts temperature for comfortable sleeping.

WARNING! Do not operate heating mode below specified outdoor temperature.

Maintenance Features

Auto Clean: Dries internal components to prevent mold. Filter Cleaning Reminder: Indicates when filters need cleaning. Self-Diagnosis: Detects and displays error codes for troubleshooting.

Care & Cleaning

Turn off power before cleaning. Clean air filters every 2 weeks. Clean unit surface with soft dry cloth.

Air Filters: Remove, wash with mild detergent, dry completely before reinstalling.
Unit Surface: Wipe with soft cloth dampened with water.
Louver Blades: Clean with soft brush attachment.
Drain Pan: Check and clean annually to prevent clogging.

CAUTION! Do not use chemical cleaners, gasoline, or hot water. Do not wash unit with water.

Regulatory Information

UL/CSA certified for safety standards. ENERGY STAR® qualified for energy efficiency. Complies with FCC Part 15 for electromagnetic interference. Refrigerant handling requires EPA certification. For technical support, visit www.fujitsugeneral.com or contact 1-800-821-7706.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Unit not starting	Power supply/remote	Check power connection; replace remote batteries; ensure proper voltage.
Poor cooling/heating	Filters/temperature setting	Clean air filters; check temperature setting; ensure proper airflow.
Water leakage	Drain blockage	Check drain pipe for blockage; ensure proper slope; clean drain pan.
Unusual noise	Loose parts/fan	Check for loose components; clean fan blades; ensure proper installation.
Error code displayed	System fault	Refer to error code table in manual; contact service if persistent.

Reset: Turn power off for 3 minutes, then restart.

Service: 1-800-821-7706; www.fujitsugeneral.com