THE NEW QC SERIES AIR HANDLING UNITS

Built Around Your Project's Exact Needs

Since 1982, TMI has engineered custom AHUs that adapt to your space, structural constraints, and pressure demands – delivering units tailored to your needs. Our QC Series custom air handling units are engineered with precision, delivered with speed, and assembled with ease.

ThermaSeal™

An advanced gasketed panel seal that reduces heat loss by 25% and air leakage at the panel joints, allowing the system to achieve SMACNA Class III leakage performance

ThermaCore™

A hybrid steel and fiberglass-reinforced polymer panel that is 40% stronger, reducing the number of panel joints while improving the thermal performance and air sealing

AeroCoil™

Innovative coil design delivering the same performance in a smaller footprint reducing the aspect ratio by 7% for a 20,000 CFM unit

THE PROBLEM

Standard AHUs Weren't Built for Your Project

Off-the-shelf units do not meet your exact requirements. They overlook critical factors such as tight cabinet seals, thermal loss, and the ability to withstand higher static pressure while maintaining panel deflection limits–forcing engineers to compromise on performance from day one. Your building deserves better.

THE TMI SOLUTION

Custom-Engineered Around Your Exact Constraints

TMI builds around your space, your specs, your timeline. Every unit is designed to your exact footprint, works around structural obstacles, and is engineered to exceed performance expectations – not just meet minimums.

ENGINEERING SPECIFICATIONS

Core Features & Capabilities

  • Completely No-Through-Metal Construction
  • Cabinet Built for 10″ W.C. Static Pressure
  • L/240 Panel Deflection
  • SMACNA Class III Leakage
  • NFPA 90A Compliant
  • Custom Aspect Ratio
  • Quick Assembly/Delivery Time
  • Indoor/Outdoor Construction Options
  • Knockdown Construction
  • Energy Recovery Options

Have a project in mind?

Talk to a TMI engineer – we'll assess your requirements and deliver a proposal within days.

MARKETS

Industries We Serve

OUR DIFFERENTIATORS

Why Engineers Choose TMI

01

Over 40 Years of Custom Engineering

Not off-the-shelf, never generic. Every unit is engineered from the ground up to meet your project’s unique demands and environment.

02

Emerging Technology Integration

From fan array systems to advanced VFM controls, TMI continuously incorporates new technologies such as ThermaSeal™, ThermaCore™, AeroCoil™, including our in-house selection software (TAD) to exceed standards and keep your building ahead of code.

03

Built Around Your Space

TMI designs around columns, low ceilings, and unusual footprints. Your building’s constraints are our starting point, not an obstacle.

04

On-Site Supervision Available

TMI stays engaged through installation – ensuring the unit performs exactly as designed when it matters most.


Ready to discuss your project requirements

Our engineers will respond within 1–2 business days.

CASE STUDIES

Featured Projects

DATA CENTER

Tier III Data Center

Exhaust Fan Array AHU systems with integral flow measurement maintaining consistent airflow to critical server environments.

HEALTHCARE

Cone Memorial Hospital

Custom knockdown AHU fitted into existing mechanical room, delivering 80,000 CFM within strict infection-control requirements.

EDUCATION

DePaul Theater School

Multi-unit installation across three floors. Each unit custom-dimensioned to fit structural column layout of the building core.

GET STARTED

Ready to Spec Your Custom AHU?

Our engineers are ready to assess your project requirements and deliver a specification that fits your exact footprint, performance targets, and timeline.

What happens after you submit?

  • A TMI engineer reviews your requirements within 1–2 business days
  • We reach out to discuss your project scope and constraints
  • You receive a custom specification and quote tailored to your needs

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No commitment required. A TMI Engineer will be in touch within 1-2 business days.
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