DANFOSS FC-101P4K0T4E20H4 VLT HVAC Basic Drive 4.0 KW

Product Overview

The FC-101P4K0T4E20H4 (131L9866) is a dedicated frequency converter from the Danfoss VLT HVAC Basic Drive FC 101 series, engineered to provide essential control for fans and pumps in simple heating, ventilation, and air conditioning systems. Delivering a rated power of 4.0 kW (5.5 HP), this drive is a cost-effective solution for reducing energy consumption and mechanical wear in building automation. The FC-101P4K0T4E20H4 is equipped with a built-in Class A1 (C2) RFI filter, ensuring electromagnetic compatibility in commercial and industrial environments. Its compact IP20 design is optimized for cabinet installation, featuring specialized HVAC functions such as Fire Mode and a built-in PI controller to maintain precise pressure or flow rates without the need for external controllers.

Technical Configuration

The FC 101 series focuses on high reliability and ease of integration for standard HVAC applications:

• VVC plus Control: Utilizes advanced Voltage Vector Control to ensure high motor performance and efficiency, maintaining stable torque across the entire speed range.

• Integrated RFI Filter (H4): Features a built-in RFI filter that meets EN 55011 Class A1 (C2) standards, allowing for motor cable lengths up to 25 meters while maintaining low electromagnetic interference levels.

• HVAC Specific Software: Includes the "Flying Start" feature to catch a spinning fan, "Sleep Mode" for energy savings during low demand, and a "Fire Mode" for emergency smoke extraction.

• Efficiency Optimization: Automatically adjusts the output voltage based on the load to reduce energy losses and motor noise, achieving up to 98% efficiency at rated load.

• User-Friendly Interface: Built with a localized control panel (LCP) and a setup wizard that simplifies commissioning for technicians familiar with HVAC terminology.

Technical Specifications

Technical FAQs

What is the "Fire Mode" on the FC 101 drive?

Fire Mode is a safety feature where the FC-101P4K0T4E20H4 prioritizes continuous operation over drive protection. When activated, the drive will ignore most internal alarms and trip conditions to ensure that smoke extraction fans or pressurization pumps continue running during an emergency evacuation.

Does this drive support communication with my Building Management System (BMS)?

Yes. The FC 101 series comes standard with built-in protocols including Modbus RTU, BACnet, and FC Protocol. This allows the drive to be monitored and controlled directly via a RS485 serial connection to most standard BMS controllers.

Is it possible to mount this drive outdoors?

No. The "E20" code indicates an IP20 (Chassis) rating. This unit must be installed inside a protected electrical cabinet that provides the necessary ingress protection against moisture, dust, and direct sunlight.

Engineering & Installation Guide

• Cooling Requirements: The FC-101P4K0T4E20H4 generates heat during operation. Maintain at least 100 mm of clearance above and below the drive for vertical airflow. For side-by-side mounting, ensure the cabinet ambient temperature does not exceed 40 deg C to avoid automatic power derating.

• Earthing and Shielding: To ensure the H4 RFI filter functions correctly, the motor cable must be shielded. Connect the shield to the drive's metal decoupling plate using a 360-degree clamp. Ensure the drive housing has a low-impedance connection to the system's protective earth (PE) busbar.

• Protection and Fusing: Always install the drive with the recommended semiconductor fuses or a thermal-magnetic circuit breaker to protect the input bridge. Refer to the Danfoss installation manual for specific fuse ratings (typically 16A to 20A for a 4.0 kW unit) to satisfy local electrical safety codes.