1. Overview

The AIRSTAGE J-II series was designed by Fujitsu General Limited as a compact, high-performance VRF (Variable Refrigerant Flow) system targeting small to medium-scale commercial and residential applications. Its core value proposition lies in comfort, design flexibility, simplified installation, and serviceability, making it an ideal entry-level VRF solution for dealers transitioning from split or multi-split systems.

2. Key Selling Features

A. Comfort Enhancement

  • Powerful Heating Performance:
    Advanced heat pump technology improves heating capacity at low outdoor temperatures, delivering up to 33% higher output compared to previous models.
    → Ideal for colder regions and mixed-use buildings.

  • Low Noise Operation:
    Redesigned fan and airflow path achieve noise levels as low as 53 dB(A).
    → Excellent for sound-sensitive environments such as offices, apartments, and schools.

B. Installation Efficiency

  • Automatic Address Setting:
    The system automatically assigns addresses to connected indoor units, minimizing commissioning time and potential human error.

  • Connection Check Function:
    Instantly verifies wiring integrity and indoor unit connections via LED display — allowing installers to confirm setup before system startup.

→ Result: Reduced installation time and fewer call-backs.

C. Design Flexibility

  • Extended Piping Range:
    Supports up to 180 m total piping length and 30 m height difference, with 40 m allowable length from first branch to farthest unit.
    → Expands design options for multi-storey or complex layouts.

  • High Connection Capacity:
    Allows up to 130% indoor connection ratio, enabling optimized load management and energy utilization.
    → Perfect for diversified zone control applications.

D. Simplified Maintenance

  • Easy-to-Read LED Display:
    A 7-segment LED provides clear operation and error codes, improving fault diagnosis speed.

  • Service Tool Compatibility:
    Integration with UTY-ASGX diagnostic software allows real-time system data retrieval and troubleshooting.

  • Movable PCB Panel:
    Provides easy access to internal components for faster servicing.

→ Enhanced uptime and reduced maintenance costs.