131F1836 Danfoss VLT FC-102 HVAC Drive 18.5 KW / 25 HP, 380 - 480 VAC, IP21

Why Choose the Danfoss 131F1836 VLT HVAC Drive?

The Danfoss 131F1836 is a reliable and energy-efficient AC variable frequency drive (VFD) designed for precise control of three-phase motors in HVAC, refrigeration and building services applications. As part of the advanced Danfoss VLT® HVAC Drive FC 102 series, it is engineered to optimise fan, pump and compressor performance while helping reduce energy usage across commercial and industrial installations.

This drive provides dedicated HVAC functionality with flexible control, communication and configuration options. Its robust design, graphical local control panel and integrated EMC filtering make it suitable for modern plant rooms, mechanical services panels and automation networks where dependable motor control is essential.

With a rated output power of 18.5 kW and a three-phase 380–480 V AC supply, the Danfoss 131F1836 is ideal for medium-power HVAC motors used in air handling units, pumps, fans, compressors and ventilation systems. Its IP21 / Type 1 enclosure supports protected indoor installation in commercial and industrial environments.

Key Advantages

• Dedicated HVAC variable frequency drive for fans, pumps and compressors.
• 18.5 kW / 25 HP motor power rating suitable for medium-power HVAC systems.
• Three-phase 380–480 V AC input compatible with industrial and commercial supplies.
• Integrated RFI Class A1/B (C1) filter to support EMC-compliant installations.
• PROFIBUS DP MCA 101 option for industrial network communication.
• Graphical local control panel for straightforward setup and operation.

Key Features

• Danfoss VLT® HVAC Drive FC 102 series.
• 18.5 kW rated output power.
• 25 HP equivalent motor capacity.
• 34 A continuous output current.
• Three-phase 380–480 V AC input supply.
• IP21 / Type 1 enclosure for protected indoor installation.
• Integrated RFI Class A1/B (C1) filter.
• PROFIBUS DP MCA 101 communication option.
• Graphical Local Control Panel (LCP).
• B1 frame size for compact HVAC installations.

Technical Specifications

• Manufacturer: Danfoss
• Series: VLT® HVAC Drive FC 102
• Model: 131F1836
• Type code: FC-102P18KT4E21H3XGXXXXSXXXXA0BXCXXXXDX
• Product type: AC variable frequency drive
• Rated output power: 18.5 kW
• Horsepower: 25 HP
• Continuous output current: 34 A
• Intermittent output current: 37.4 A
• Input voltage: 380–480 V AC
• Input phases: 3-phase
• Output phases: 3-phase
• Protection rating: IP21 / Type 1
• RFI filter: Class A1/B (C1)
• Brake chopper: No brake chopper
• Control panel: Graphical Local Control Panel
• Communication option: PROFIBUS DP MCA 101
• Frame size: B1
• Dimensions (H × W × D): approx. 494 × 243 × 261 mm
• Weight: approx. 21.44 kg
• EAN: 5702427413221

Efficient Motor Control for HVAC Systems

Variable frequency drives such as the Danfoss VLT® HVAC Drive FC 102 regulate motor speed by adjusting the voltage and frequency supplied to the motor. This allows HVAC equipment to operate according to real system demand, improving comfort control while reducing energy consumption and mechanical stress.

The Danfoss 131F1836 is well suited to installations requiring dependable speed control, network integration and efficient operation. Its PROFIBUS DP communication option enables connection to industrial automation systems and building management networks for improved monitoring and control.

Typical Applications

• Air handling units and ventilation systems.
• Commercial HVAC fan speed control.
• Heating and chilled water pump systems.
• Compressors and refrigeration equipment.
• Building management system installations.
• Commercial plant rooms and mechanical services panels.
• Industrial climate control and process ventilation.

Trusted by HVAC Engineers Worldwide

Danfoss VLT® HVAC Drives are widely used by building services engineers, contractors and facility managers to deliver reliable motor control, efficient operation and seamless integration into modern HVAC systems.