Overview

The Peak Cut Power Consumption Function in Fujitsu General’s VRF system is designed to optimize energy usage during periods of high demand. By limiting the system’s power consumption to a preset threshold, this feature prevents energy overuse and helps avoid peak demand charges, making it ideal for energy-conscious operations in large facilities like shopping malls, factories, and offices.

Key Features of the Peak Cut Function

  1. Power Consumption Limitation:

    • Allows users to cap the power consumption of the VRF system at specific levels ranging from 40% to 100% of maximum capacity.

  2. Customizable Settings:

    • Offers selectable power-saving levels based on the operational needs of the facility.

  3. Manual or Automatic Activation:

    • The function can be triggered manually or integrated with external systems for automated control.

  4. Energy Savings During Peak Hours:

    • Ideal for reducing electricity demand charges by limiting power during peak periods.

Use Cases

  • Mega Shopping Malls: Reduce power consumption during peak shopping hours without compromising comfort.

  • Factories: Manage energy use during high-demand production schedules.

  • Glass-Panelled Buildings: Control cooling loads effectively in areas with high temperature fluctuations.

Setting Up the Peak Cut Function

  1. Install Necessary Hardware:

    • Ensure the outdoor unit’s printed circuit board (PCB) is equipped with the external connection kit (e.g., UTY-XWZXZ6).

  2. Access Function Settings:

    • Use the remote controller or centralized control panel to navigate to the function setup menu.

  3. Set Peak Power Limit:

    • Locate the Function No. and configure the desired power-saving level:

      • Function No.: 03

      • Setting Levels:

        • 40% Capacity

        • 60% Capacity

        • 80% Capacity

        • 100% Capacity (default).

  4. Activate the Function:

    • Enable the Peak Cut Function from the settings menu.

    • Optionally, link the function to an external control system for automated peak-hour activation.

Troubleshooting Common Issues

  1. Peak Cut Function Not Activating:

    • Verify that the Function No. and Setting No. have been correctly configured.

    • Check wiring connections and ensure the external input system is operational.

  2. Insufficient Cooling/Heating:

    • Ensure the selected power-saving level aligns with the building’s requirements.

    • Increase the capacity setting if comfort levels are compromised.

  3. System Exceeds Power Limit:

    • Check if the Peak Cut Function is activated and correctly linked to the external control system.

    • Inspect the DIP switch settings on the outdoor unit PCB.