My Product List
Literature and Promo Items
Related Water Products
Training & Education
AFD-101 for Industrial Market
VFD-101 for HVAC Market
VFD-101 for Water Market
Facts Worth Knowing
Training Class Information
Travel Directions and Accommodations
Service & Support
DrivePro Professional Drives Support
Service and Support Contacts
Start-Up Checklist and Procedures
Extranet and Configurator Login
High Power Drive Center
Sales and Service Networks
About VLT® Drives
Danfoss LLC General Terms and Conditions of Sale
Aspiration, Promise, Behaviour
Facts & Figures
Terms and Conditions of Sale
Refrigeration and Air Conditioning
Water & Waste Water
Electric Radiant Heating
News & Events
Danfoss EnVisioneering Solutions Magazine
Global News Magazine
RSS News feed
Career@Danfoss North America
Danfoss Group Global
Bosnia - Herzegovina
United Arab Emirates
United States of America
HVAC Drive FC 102
Achieve the lowest cost of ownership with a premier drive dedicated to ventilation, heating, and refrigeration applications.
HVAC Sales Brochure
HVAC Product Overview
Options and Accessories
HVAC Drive Fact Sheet
Order / View Literature
NEMA/UL Type 4X Fact Sheet
Specifications - General
Specifications - Mechanical
HVAC Technical Reference Supplement
Features and User Benefits
200-240 V.....1-1/2 HP - 60 HP
380-480 V.....1-1/2 HP - 1350 HP
525-600 V.....1-1/2 HP - 125 HP
525-690 V.....1-1/2 HP - 1600 HP
NEMA 1, NEMA 12, 3R and NEMA 4X
- Energy savings of 50 to 70% are common when compared with constant flow systems
- When compared with other methods of flow control, savings to 40% typical
All VLT HVAC Drives have dual D-link reactors, which provide a reduction in input harmonics equal to a 5% A line reactor without the voltage drop and efficiency losses associated with AC line reactors
Auto tuning of the PI controllers
The drive monitors how the system reacts on corrections made by the drive - and learns from it, so that precise and stable operation is achieved quickly.
Automatic Energy Optimization
Standard feature that optimizes motor magnetization at all speeds and loads. Increases energy efficiency by 5–15% for partial loads.
The VLT® HVAC Drive provides a complete range of energy consumption information, which helps identify low-efficiency components in the HVAC system.
PM motor support - better efficiency
Support for any non-salient permanent magnet motor up to 30
Coated circuit boards
All standard PCBs conform with class 3C2 (IEC 60721-3-3). If used in especially harsh conditions, it is possible to order a special coating that complies with class 3C3.
Ruggedized for extra protection
Special treatment that ensures components remain firmly in place in environments characterized by high degrees of vibration, such as marine and mobile equipment.
Automated Resonance Monitoring
Avoid frequency bands at which connected fans create resonances in the ventilation system. This reduces installation time and system wear.
Features and User Benefits
The VLT HVAC Drive can be remote commissioned and monitored through a USB connection.
Fire Override Mode
Safety feature that ensures fire escapes remain free of smoke by preventing the drive from reacting to control signals, warnings, or alarms. Instead, it continues reliable operation for as long as possible and runs until it eventually fails.
Fan Belt Monitoring
From the relation between current and speed, the HVAC Drive is able to recognize a broken belt reliably.
End of Pump Curve
In the event of breaks or leakages, End of Curve triggers an alarm, shuts off the pump, or performs a user-defined action.
Dry Pump Protection
The HVAC Drive constantly evaluates the condition of the pump, based on internal frequency/power measurements.
Built-in cascade controller
Control up to three pumps with fixed lead pump.
This built-in logic controls alternation between two pumps in duty/stand-by applications. Motion of the stand-by pump prevents the pump from. An internal timer ensures equal usage of the pumps.
Reduces the pressure set point according to the flow - which saves energy.
Prevents damage on thrust and bearings by providing fast acceleration of pumps to minimum speed, from where the normal ramp takes over.
Options and Accessories
Options for bus communication, user programs, etc., are delivered ready for plug-and-play.
- Local Control Panel (LCP), graphical and numerical
- Cable for LCP, 3 m [9.8 ft]
- Remote-mounting kit for Local Control Panel (LCP)
-External 24 V supply card
- PROFIBUS (MCA 101)
- DeviceNet (MCA 104)
- LonWorks (MCA 108)
- BACnet (MCA 109)
- PROFINET (MCA 120)
- EtherNet/IP (MCA 121)
- Modbus TCP (MCA 122)
- Built-in serial communication for Modbus RTU, Johnson Controls Metasys® N2, and Siemens Apogee® FLN
- Standard EIA-485 interface
- Ease of installation and operation
- General Purpose I/O (MCB 101)
- Relay Option (MCB 105)
- Analog I/O w. real time clock backup (MCB 109)
- Sensor Input Card (MCB 114)
- MCT 10 Motion Control Tool
- MCT 31 Harmonics Calculation Tool
- VLT Energy Box