Fujitsu ASTG12KMCA Manual

The Fujitsu ASTG12KMCA is a high-efficiency split-type air conditioning system with inverter technology, designed for residential and commercial use. This system features advanced cooling and heating capabilities, energy-saving operation, quiet performance, intelligent controls, air purification filters, and smart connectivity options. Below are key sections covering installation, operation, maintenance, troubleshooting, and technical specifications.

1. Features at a Glance 2. Installation Requirements 3. First-Time Setup 4. Technical Specifications 5. Controls and Operation 6. Maintenance Procedures 7. Advanced Functions 8. Error Codes and Diagnostics 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting Guide

Features at a Glance

Key components: Indoor unit, Outdoor unit, Remote controller, Installation accessories, User manual.

Feature	Description
Inverter Technology	Energy-efficient operation with precise temperature control
Cooling/Heating Capacity	12000 BTU/h cooling, 13000 BTU/h heating
Noise Level	As low as 19 dB(A) in quiet mode
Energy Rating	High SEER and HSPF ratings for energy savings
Air Purification	Multi-stage filtration system
Wi-Fi Connectivity	Smart control via mobile app
Auto Swing Louvers	Wide air distribution
Sleep Mode	Quiet operation with temperature adjustment
Timer Functions	24-hour on/off programming
Self-Cleaning	Automatic indoor unit cleaning

Installation Requirements

Professional installation required. Ensure proper site preparation and electrical requirements.

Location selection: Choose stable wall for indoor unit; well-ventilated area for outdoor unit.
Electrical connection: 220-240V AC, 50/60Hz dedicated circuit with proper grounding.
Refrigerant piping: Use specified pipe sizes; ensure proper insulation and routing.
Drainage: Install drain hose with proper slope to prevent water accumulation.
Communication wiring: Connect indoor and outdoor units with provided cables.

WARNING! Installation must be performed by qualified technicians only. Incorrect installation may cause equipment damage or safety hazards.

First-Time Setup

After installation, perform initial setup and system check.

Power on system: Turn on circuit breaker; wait for initialization.
Remote control setup: Install batteries; point at indoor unit signal receiver.
Test operation: Select cooling mode; set temperature to 24°C; verify operation.
Wi-Fi setup: Download Fujitsu app; follow pairing instructions for smart control.
Function verification: Test heating, fan speeds, timer, and special modes.

CAUTION! Allow system to stabilize for 10 minutes after initial startup before full operation.

Technical Specifications

Model: ASTG12KMCA
Cooling Capacity: 12000 BTU/h (3.5 kW)
Heating Capacity: 13000 BTU/h (3.8 kW)
Power Supply: 220-240V, 50/60Hz, 1-phase
Refrigerant: R32
Operating Range: Cooling: -10°C to 46°C; Heating: -15°C to 24°C
Noise Level: Indoor: 19-36 dB; Outdoor: 45 dB
Dimensions: Indoor: 798×295×228 mm; Outdoor: 700×550×275 mm
Weight: Indoor: 9 kg; Outdoor: 32 kg
SEER Rating: 26.5
HSPF Rating: 10.0

Controls and Operation

Remote control functions: POWER, MODE, TEMP, FAN, SWING, TIMER, SLEEP, WI-FI, FILTER, RESET.

Operating Modes: AUTO, COOL, DRY, FAN, HEAT. Temperature range: 16°C to 30°C. Fan speeds: AUTO, LOW, MEDIUM, HIGH, QUIET. Swing control: Vertical and horizontal adjustment. Timer: On/Off programming up to 24 hours. Sleep mode: Automatic temperature adjustment for comfortable sleep.

Smart Features: Mobile app control, voice assistant compatibility, energy monitoring, maintenance alerts.

Maintenance Procedures

Regular maintenance ensures optimal performance and longevity.

Air filter cleaning: Every 2 weeks; remove and wash with water; dry completely.
Outdoor unit: Keep clear of debris; clean heat exchanger with soft brush.
Indoor unit: Wipe surface with soft dry cloth; clean air outlet vents.
Drainage check: Ensure drain hose is clear; pour water to test flow.
Professional service: Annual inspection by qualified technician.

Tip: Schedule professional maintenance before peak cooling/heating seasons.

Advanced Functions

Smart features and special operating modes.

I-Feel function: Remote control acts as temperature sensor for precise control.
Eco mode: Optimizes energy consumption while maintaining comfort.
Powerful mode: Maximum cooling/heating for rapid temperature change.
Self-cleaning: Automatically cleans indoor unit when turned off.
Air purification: Plasma and photocatalytic filters remove allergens and odors.
Follow-me function: Adjusts operation based on remote control location.
Weekly timer: Program different settings for each day of the week.
Filter indicator: Alerts when air filter needs cleaning.

WARNING! Do not operate system continuously in powerful mode for extended periods.

Error Codes and Diagnostics

System displays error codes for troubleshooting.

Error Code	Description	Action
E0	Protection device operation	Check for obstructions; restart system
E1	Indoor PCB error	Power cycle; contact service
E2	Communication error	Check wiring connections
E3	Outdoor system error	Check outdoor unit; contact service
E4	Temperature sensor error	Check sensor connections
E5	Refrigerant system error	Contact qualified technician
E6	Fan motor error	Check fan operation; contact service
E7	Drain system error	Check drain hose and pump

Care & Cleaning

Proper cleaning maintains performance and appearance.

Indoor unit: Use soft dry cloth; for stubborn stains, use mild detergent diluted in water. Air filters: Remove and clean every 2 weeks with water; air dry completely. Outdoor unit: Keep area clear; clean fins with soft brush. Remote control: Wipe with dry cloth; replace batteries annually.

CAUTION! Do not use abrasive cleaners, solvents, or water spray directly on units. Disconnect power before cleaning.

Regulatory Information

CE certified; complies with EU directives for electrical equipment. Energy label class A+++. Refrigerant R32: Global Warming Potential 675. Manufactured under ISO 9001 quality standards. Copyright © 2024 Fujitsu General Limited. All rights reserved. For technical support and service, contact authorized Fujitsu service centers or visit www.fujitsu-general.com.

Troubleshooting Guide

Symptom	Possible Cause	Corrective Action
Unit not starting	Power supply, remote control	Check circuit breaker; replace remote batteries; ensure proper signal reception
Poor cooling/heating	Filters, temperature setting	Clean air filters; check temperature setting; ensure doors/windows closed
Water leakage	Drain blockage, installation	Check drain hose for blockage; ensure proper slope; contact installer
Unusual noise	Loose parts, fan obstruction	Check for loose panels; ensure no objects near fan; contact service
Remote not working	Batteries, distance, obstacles	Replace batteries; point directly at unit; remove obstacles
Error code displayed	System fault	Note error code; power cycle system; contact service if persistent
Wi-Fi connection lost	Network issues, router	Check router connection; re-pair with app; reset network settings

Reset Procedure: Turn off at circuit breaker for 5 minutes, then restart.

Service Contact: Authorized Fujitsu service centers; www.fujitsu-general.com; Support hotline: available regionally