Red Dot’s Advanced Engineering and Test group delivers the highest level of expertise in heavy-duty mobile HVAC.

Our Advanced Engineering and Test group operates the H.G. Runnings Technical Center in Seattle, a hub of innovation and research in heat transfer, refrigerant management, diagnostics, and control systems for heavy-duty vehicles and equipment.

In addition to evaluation of our own concepts and products, the H.G. Runnings Technical Center is available to provide independent research and product validation.

Technical Center Capabilities

Full-vehicle environmental chamber

At 48 feet long, 18 feet high, and 18 feet wide, our environmental chamber is big enough to accommodate a full-sized truck, loader, or other heavy vehicle. The chamber can produce an air temperature range of -20 F to 140 F with relative humidity from 20% to 95%. We can instrument the vehicle with pressure transducers, hook up a dynamometer, build up engine heat and hydraulic loads—all in an effort to fine-tune A/C performance.

HVAC systems calorimeter

Provides precise simulation of a wide range of under-hood and in-cab conditions. Twenty system parameters are controlled to within a 1% tolerance. Sixty data points are collected at a rate of up to four times per second.

Vibration test cell

Our LDS V875-640 Electrodynamic Shaker is available for testing components, subassemblies, and complete heater and A/C systems, as well as to validate the durability of components from outside suppliers.

Blower test cell

For prolonged evaluation of fans and blower motors to validate stated hour ratings and standards for reliability, quality, and performance.

Acoustic test lab

Decibel levels and frequencies generated by blower motors and other components can be used to define acceptance criteria for noise and to assure that products meet customer standards for Noise, Vibration, and Harshness (NVH).

Electromagnetic and radio frequency interference (EMI/RFI) test lab

Electromagnetic and radio frequency testing in progress.

Measures radiated and conducted electronic emissions and potential interference inside the cab. Used to pre-qualify product designs for MIL-STD-461E and commercial standards.