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Driving Efficiency in Every Terminal Unit

 

Fan Coil Units (FCUs), Climate Ceilings, and Chilled Beams are only as efficient as the hydronic control strategy behind them.

Our valves, actuators, air & dirt separators, degassers and pressure maintenance solutions protect your design intent by delivering accurate flow limitation and stable part-load control, supported by transparent data that enables continuous optimization as system conditions change.

IMI Terminal Units

Where Performance Breaks Down

The real problems start where the system meets the room:

  • Clogging issues

    Clogging issues

  • Tight ceiling spaces

    Tight ceiling spaces

  • Unstable flows

    Unstable flows

These issues peak during part-load operation, where your terminal units spend roughly 80% of the year and where control accuracy typically declines.

Our solutions maintain stable flow control across the full operating range
– enabling consistent room temperature and comfort.

Terminal_units commercial guide

Want to learn more?

Download the terminal units commercial brochure and explore our solutions.

Gain practical, expert insight into achieving stable flow and precise temperature control under all operating conditions.

Discover:

  • Long-term reliability you can count on
  • Straightforward installation
  • Smart comfort control

Fill out the form to access your copy, and a member of our team will reach out to support your project and help you find the right solution.

We Don’t Just Build Products. We Solve Real Challenges

Our engineers actively seek out the issues that slow you down and focus on solving them.

 

Terminal Unit challenges

How do we solve them?

Clogging in HVAC systems

Caused by dirt, air, and oxygen ingress leads to system malfunctions, poor temperature control, and increased energy consumption.

  • IMI Pneumatex air & dirt separators help limit particles, air, and oxygen ingress before they affect critical components
  • IMI’s hydronic expertise helps you diagnose water quality issues and ensure adequate protection
  • Dirt-resistant pressure-independent balancing and control valve (PIBCV) helps maintain consistent performance over the product lifetime

Tight ceiling voids

Space constraints make HVAC installation, commissioning, and maintenance complicated.

  • Compact valve body and slim actuator design fit easily into tight spaces, enabling low-cost installation
  • Side-visible valve setting allows faster and more efficient commissioning
  • Easily accessible measuring point supports efficient diagnostics and system verification

Unstable flows and pressure fluctuations

Incorrect valve sizing and pressure instability cause temperature fluctuations, noise, hunting, and excessive pumping energy.

  • IMI’s expert hydronic guidance and tools ensure valves are correctly sized and positioned, preventing instability and inefficiency
  • TA-Modulator PIBCV with EQM characteristic delivers precise flow control, especially at low loads
  • Integrated flow and differential pressure (Dp) verification on our PIBCVs, enables fast commissioning, reliable operation, and proof that design performance is maintained throughout the system lifecycle

Solutions Built for the Terminal Units You Work With

Each terminal technology has its own challenges. We engineer solutions to address them at the root.

Fancoil Nano

Optimize your FCUs:

  • Stable operation during varying available differential pressures
     
  • Prevents coil overflow and temperature imbalance
     
  • Fewer callbacks caused by noise or comfort issues
TA Sixline

Optimize your Climate Ceilings:

  • Precise flow limitation, changeover and control of temperature with just one valve and actuator
     
  • Compact design, reduced weight, and 360° actuator orientation for easy integration in shallow ceiling voids
     
  • Direct heating/cooling flow setting no Kv inserts. Pressure Independent version enables flow measurement at the terminal level for fast commissioning and diagnostics
chilledbeams slider modulator

Optimize your Chilled Beams:

  • Reliable control at low flows enables precise temperature regulation
     
  • EQM modulation allows smooth, stable control across the full operating range
     
  • TA-Smart offers versatility of valve control modes operating according to flow, power, or valve position with outstanding controllability

Your HVAC system deserves to perform as designed, not as an approximation

Our HVAC engineers study what truly affects terminal units in the field and solve the most critical challenges.

 

Ready to build HVAC systems that stay efficient?

Get in touch with our experts.