HVAC Drive H300

Efficiency and Reliability in HVAC Systems 

The HVAC Drive H300 Variable Frequency Drive (VFD) is the result of extensive research and decades of experience in the HVAC market. Designed for fan, pump, and compressor control, it delivers precise flow management, energy efficiency, and long-term reliability.

Part of the Specialist Series of industry-specific drives, the H300 builds on 50+ years of drives expertise, ensuring dependable performance for building automation and HVAC applications.

Compact Design for Maximum Flexibility

The HVAC Drive H300 is among the most compact VFDs in its class, saving valuable space, simplifying installation, and maximizing mounting flexibility.

Features 

A complete HVAC building automation solution

The HVAC Drive H300 is designed for fan, pump, and compressor control in HVAC applications. It includes all the features expected from a dedicated HVAC drive and more:

• Optimised for HVAC applications
• Advanced motor control for fans, pumps, and compressors
• High energy efficiency and reliability

Building automation systems

Seamless integration with building automation systems with support for:

• BACnet MS/TP onboard and BACnet IP option – BTL conformance tested for reliable operation
• Modbus RTU

Custom software

• Flexibility without a building management system using onboard PLC
• Optional modules for custom application software

Fire mode

• Allows the drive to run uninterrupted during a fire
• Maximises smoke extraction in emergencies by disabling certain protection features

Low audible noise

• Quiet motor operation with high switching frequencies up to 16 kHz
• Intelligent 10-speed cooling fan for minimal noise

Conformal coated PCBs

• High reliability with conformally coated PCBs as standard

Compact dimensions

• Among the most compact VFDs in its class
• Maximises mounting flexibility

Dual process PID loops

• Built-in dual process PID loops
• Operate independently or together for advanced functionality

Energy efficiency as standard

• Up to 98% efficiency with minimal energy loss during conversion
• Supports super high-efficiency permanent magnet motors
• Dynamic Volts/Hertz control for optimal efficiency under low load conditions

Energy savings

• Sleep, wake, and standby modes minimise energy loss
• Onboard power metering with cost per kWh tracking

Thermistor monitoring

• Temperature sensor input available for direct analogue input without a transducer

Extreme operating conditions

• Operates in temperatures from -20°C to 55°C* (40°C standard, higher with de-rating)

Extended connectivity

• Plug-in SI option modules for extended connectivity: BACnet IP, POWERLINK, EtherNet/IP, Modbus TCP/IP, PROFINET, PROFIBUS, DeviceNet, and CANopen

Quick commissioning

• Smartcard for simplified maintenance and commissioning without a PC
• SD card for parameter storage and data logging

IP65 Protection for Harsh Environments

The HVAC Drive H300 IP65 variant offers the same dedicated HVAC features as standard models, with full dust protection and resistance to low-pressure water jets. Ideal for outdoor and harsh environments, it reduces downtime and maintenance costs.

Standard & High IP Drives

• Hand-Off-Auto keypad with real-time clock remains available in sealed casing.
• Enables mix-and-match of standard and high IP drives in the same project for simplified qualification.

Save on installation

The High IP drive allows wall mounting close to the motor, reducing costs through:

• No cabinet required
• Shorter cable lengths
• Lower labor time and installation costs

High Power Solutions

From small HVAC systems to large refrigeration plants, Control Techniques drives can handle it all:

• Up to 500 kW in a single module
• Lightweight design – up to 60 kg lighter than competitors
• Compact footprint for easy integration

Pre-Engineered Motor Control Systems

Our DFS Series High Power Freestanding Drives come pre-assembled with all necessary components, saving engineering time. Flexible configurations include:

• Load switch, fuses, filters, and more
• Optional door-mounted HMI with real-time clock

Quick delivery via our online configurator – saving weeks compared to industry standards.