FC101P11KT4E20 Danfoss VLT HVAC Basic Drive 11kW

Product Overview

The FC101P11KT4E20 (FC101P11KT4E20) is a dedicated frequency converter from the Danfoss VLT HVAC Basic Drive series, specifically engineered to optimize the performance of fans and pumps in building automation systems. With a power rating of 11 kW (15 HP), this drive is designed to deliver maximum energy efficiency and simplified control for HVAC applications. The FC101P11KT4E20 features a robust H5 frame size and is optimized for 200-240V three-phase networks. By implementing advanced control algorithms, this drive reduces energy consumption and mechanical wear on ventilation and pumping equipment, making it a cornerstone for sustainable facility management and industrial climate control.

Technical Configuration

The VLT HVAC Basic Drive focuses on "fit-for-purpose" functionality, offering essential features for climate control without unnecessary complexity.

• Optimized Performance: Features a 97.2 percent peak efficiency rating, ensuring minimal energy waste and reduced heat generation within the control cabinet.

• Thermal Resilience: Engineered for reliable operation in industrial environments, maintaining a continuous output of 42.0 A at 40 deg C, and providing a derated continuous output of 33.0 A at 50 deg C.

• Compact Frame: The H5 frame size is designed for efficient space utilization, allowing for straightforward installation in standard electrical enclosures while maintaining an IP20 protection rating.

• HVAC Intelligence: Includes built-in functions such as Fire Mode for emergency ventilation and a PI controller for closed-loop pressure or flow management.

• Terminal Design: High-capacity terminals accommodate cable sizes up to 16 mm2 (6 AWG), ensuring secure and low-resistance connections for both line power and motor leads.

Technical Specifications

Technical FAQs

How does the FC101P11KT4E20 handle operation in high-ambient temperatures?

The drive is designed to provide a continuous output current of 42.0 A at temperatures up to 40 deg C. For environments reaching 50 deg C, the drive remains operational but utilizes a thermal derating strategy, reducing the continuous output current to 33.0 A to protect the internal power electronics.

What is the benefit of the "Fire Mode" in HVAC applications?

Fire Mode is a safety feature that, when activated, causes the drive to ignore most non-critical internal alarms. This ensures that smoke extraction fans or stairwell pressurization systems continue to run during an emergency, prioritizing occupant safety and building integrity over drive protection.

Is this drive compatible with standard building management systems (BMS)?

Yes. The VLT HVAC Basic Drive series typically supports common HVAC protocols such as BACnet, Modbus RTU, and FC Protocol, allowing for seamless integration into centralized building control and monitoring architectures.

Engineering & Installation Guide

• Vertical Mounting and Airflow: The H5 frame relies on vertical convection for heat dissipation. Mount the FC101P11KT4E20 on a flat, non-vibrating surface with a minimum clearance of 100 mm above and below the unit. This ensures that the 518 W of typical heat loss can be effectively removed by the internal cooling fans.

• Cable Shielding for EMC: To comply with electromagnetic compatibility standards, use shielded motor cables. The shield must be connected to the metal decoupling plate of the drive with a 360 degree clamp. This is essential in HVAC settings to prevent the drive's high-frequency switching from interfering with sensitive building sensors or communication lines.

• Automatic Motor Adaptation (AMA): Upon initial startup, always perform an AMA. This function allows the drive to measure the electrical characteristics of the connected motor while at a standstill. This optimizes the motor model within the drive, resulting in higher torque performance and improved energy savings during partial load operation.