Fujitsu ASTG09KMCA Installation Manual

The Fujitsu ASTG09KMCA is a 9000 BTU wall-mounted split-type air conditioner with inverter technology, designed for residential and light commercial use. This unit features energy-efficient operation, quiet performance, multiple fan speeds, auto-swing louvres, 24-hour timer, sleep mode, and advanced air filtration. Below are key sections for safety, installation procedures, electrical requirements, refrigerant handling, and commissioning.

1. Safety Precautions 2. Unit Specifications 3. Installation Tools Required 4. Site Selection and Preparation 5. Mounting the Indoor Unit 6. Installing the Outdoor Unit 7. Refrigerant Piping Connection 8. Electrical Wiring 9. Vacuum and Leak Testing 10. Commissioning and Testing 11. Maintenance Guidelines

Safety Precautions

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

Hazard Type	Precaution
Electrical Shock	Disconnect power before installation; use proper grounding
Refrigerant Handling	Wear protective gloves and goggles; avoid open flames
Heavy Lifting	Use two people for unit handling; secure with proper tools
Sharp Edges	Wear gloves when handling metal parts and piping
High Pressure	Use approved refrigerant gauges; follow pressure specifications

Unit Specifications

Model: ASTG09KMCA
Cooling Capacity: 9000 BTU/h
Power Supply: 115V, 60Hz
Refrigerant: R410A
Indoor Unit Dimensions: 28.3" W × 11.4" H × 8.7" D
Outdoor Unit Dimensions: 29.1" W × 19.7" H × 12.6" D
Indoor Unit Weight: 15.4 lbs
Outdoor Unit Weight: 49.6 lbs
Maximum Piping Length: 25 feet
Sound Level: 26 dB (Indoor), 49 dB (Outdoor)

Installation Tools Required

Gather all necessary tools before beginning installation.

Pipe cutter and reamer
Flaring tool set
Torque wrench
Vacuum pump with manifold gauge
Leak detector or soap solution
Multimeter
Drill with hole saw (2.5" minimum)
Level and measuring tape
Hex wrench set
Insulation tape and cable ties

Site Selection and Preparation

Choose appropriate locations for indoor and outdoor units.

Indoor Unit Location: Away from direct sunlight, heat sources, and moisture; minimum 7 feet from floor; ensure proper air circulation.
Outdoor Unit Location: Well-ventilated area; minimum 12 inches clearance on all sides; secure mounting surface; protected from direct weather exposure.
Wall Penetration: Drill hole with slight downward slope (indoor to outdoor) for condensation drainage.

WARNING! Do not install in areas with flammable gases or corrosive atmospheres.

Mounting the Indoor Unit

Follow these steps for secure indoor unit installation.

Position mounting plate on wall using level; mark screw holes.
Drill holes and insert wall anchors; secure plate with screws.
Route drain hose downward with proper slope (minimum 1/4" per foot).
Connect piping and cables to unit before mounting.
Hook indoor unit onto top of mounting plate; ensure secure engagement.
Check for level and secure all connections.

CAUTION! Ensure drain hose has no kinks or restrictions.

Installing the Outdoor Unit

Proper outdoor unit placement ensures optimal performance.

Select stable, level surface (concrete pad or mounting brackets).
Ensure minimum clearances: 12" front, 4" sides, 12" top, 12" rear.
Use vibration pads or rubber feet to reduce noise transmission.
Secure unit with bolts or mounting brackets as required.
Position to allow easy service access and proper airflow.

NOTE: Avoid locations near bedroom windows due to operational noise.

Refrigerant Piping Connection

Proper piping installation is critical for system performance.

Cut pipes to required length using pipe cutter; remove burrs with reamer.
Flare pipe ends using proper flaring tool (45-degree angle).
Slide insulation over pipes before connections.
Connect liquid and gas pipes to indoor unit first; torque to specifications.
Route pipes through wall hole to outdoor unit.
Connect to outdoor unit valves; torque connections properly.

WARNING! Use R410A-compatible tools only; standard R22 tools are not suitable.

Electrical Wiring

Follow electrical codes and manufacturer specifications.

Connection	Specification
Power Supply	115V, 60Hz, 15A dedicated circuit
Wire Size	14 AWG minimum for power lines
Grounding	Proper earth ground required
Communication Cable	Shielded 2-conductor cable between units
Circuit Breaker	Time-delay fuse or HACR-type breaker

CAUTION! All electrical work must be performed by qualified personnel.

Vacuum and Leak Testing

Ensure system is free of moisture and leaks before operation.

Connect vacuum pump to service ports using manifold gauge.
Evacuate system to 500 microns or less; hold for 15 minutes.
If pressure rises above 1000 microns, check for leaks and re-evacuate.
Close service valves and disconnect vacuum pump.
Open liquid and gas valves fully using hex wrench.
Check all connections with leak detector or soap solution.

Commissioning and Testing

Final system check and performance verification.

Restore power to both indoor and outdoor units.
Test remote control operation and display functions.
Run cooling mode test; check airflow and temperature drop.
Verify condensate drainage is functioning properly.
Check for unusual noises or vibrations.
Measure operating current and compare to specifications.
Instruct user on basic operation and maintenance.

NOTE: Record installation details for warranty registration.

Maintenance Guidelines

Component	Maintenance Interval	Procedure
Air Filters	Every 2 weeks	Clean with vacuum or warm water; dry completely
Indoor Coil	Annually	Professional cleaning if heavily soiled
Outdoor Unit	Seasonally	Clear debris from fins and fan
Drain Line	Seasonally	Flush with clean water to prevent clogs
Electrical	Annually	Check connections and insulation

Service Contact: Fujitsu Technical Support: 1-800-853-4823