Fujitsu General Australia

Overview

Fujitsu General’s new R32 wall-mounted series (KU, KM, and CM) introduces a modern, energy-efficient range designed to match any interior, with enhanced comfort, improved performance, and easier installation

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1. Product Line-Up

• KU Series: Designer reverse cycle models.

• KM Series: Standard reverse cycle models.

• CM Series: Cooling-only models.

Each series replaces earlier models (LU, LV, LF, etc.) with simpler, flatter designs and capacity options from 2.0kW to 10.0kW

2. Key Efficiency Features

• R32 refrigerant: Lower GWP, higher thermal efficiency, and reduced charge volume.

• High energy star ratings: Up to 5.5 stars for 2.1kW models and 5.0 stars for 2.6kW models.

• All-DC system: DC fan motor, DC rotary compressor, and optimized inverter control for greater efficiency.

• High-density multi-path heat exchanger: Compact yet efficient with thin grooved copper tubes.

• Demand control PCB (standard): Enables load-shedding and energy management for demand-response programs

3. Comfort and Usability

• Motion Sensor (Human Sensor): Detects occupancy and adjusts temperature automatically—saving up to 20% energy.

• Airflow Optimization (KM Series): Automatic louvre adjustment for both heating and cooling to improve air distribution.

• Ultra-quiet operation: As low as 21 dB(A) in quiet mode.

• Wireless Weekly Timer: Standard across all models, allowing up to seven programmable settings

4. New Installation Design

• Flare-less Pipe Connection: Eliminates the need for welding and minimizes refrigerant leakage risk.

  • Installation simplified by tightening connection nuts only.

• Compatible Tools: Most R410A tools can be reused; however, a dedicated R32 recovery cylinder and flare-less joint removal tool are required

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• Installation Guidelines:

  • Pipe connection diameter: ¼”–½” (6.35–12.7 mm).

  • Torque range: 16–61 N·m depending on pipe size.

5. Frequently Asked Questions (R32 Use)

• Installation qualification: No special R32-specific license required beyond standard ARCtick refrigeration license.

• Service ports: Same as R410A.

• Tools: Mostly identical to R410A tools except for recovery and flare-less joint tools.

• Refrigerant mixing: Strictly prohibited—performance and reliability will be compromised.

• Compatibility: R32 outdoor units must not be connected to R410A indoor units

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6. Technical Enhancements

• i-PAM inverter control: Adjusts current waveform for smoother compressor operation and reduced power loss.

• DC twin rotary compressor: High efficiency at partial loads—crucial for typical household conditions where units rarely run at full capacity.

• Compact outdoor design: Up to 12% smaller installation area and 25% higher efficiency than previous models

7. Available Controllers and Accessories

• Wired Controllers:

  • UTY-RVNYM (High Grade)

  • UTY-RNNYM (Standard)

• Simple Controller: UTY-RSNYM

• External Connect Kit: UTY-XWZXZ5

• Communication Kit: UTY-TMBXF1 (for integration and control)

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8. Specification Highlights

9. Compliance and Service

• Designed in compliance with AS/NZS 3823.2 (testing and rating) and AS/NZS 3000 (electrical).

• All installers must hold a refrigerant handling licence and be qualified in refrigerant equipment service.

• Adequate service access must be ensured for all installations

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Summary

The new R32 wall-mounted KU/KM/CM series combines superior energy efficiency, quiet operation, and simplified installation.
With its environmentally friendly R32 refrigerant, motion-sensing energy control, and flare-less pipe design, it represents Fujitsu’s next generation of sustainable and user-focused comfort solutions.