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Carbon Monoxide Alarms Save Lives. If you are involved in home energy auditing, building science, weatherization or HVAC, you should be installing and carrying low level CO alarms. Every home you test and tighten is a liability. Testing and retesting my not minimize your liability to the levels that you and your insurance company desire and your customers expect. Because homes are dynamic they need to be treated as so. Even the best contractors cannot predict every characteristic that a ho …

The Pt100 temperature probe on the Testo 500 series refrigeration instruments has been carefully designed to work under a wide range of applications while providing the fastest temperature response in the industry. The platinum-based 4-wire construction of the sensor has exceptionally low mass and is shielded from electrical interference from ghost voltages or static electricity common in refrigeration systems. When plugged into the instrument, an O-ring provides a liquid-tight seal that protect …

Testo A/C Applications Guide (PDF) is an invaluable resource for technicians from entry level to senior.

Getting the most from your Testo 330 or 327 Some thought on combustion testing. When performing a combustion test, one of the most important concepts to understand is stability of the combustion process. If the combustion process is not stable, it is not safe. Once a flame is established, the burner should quickly reach study state operation and not be affected by factors external to it. While the combustion process is not adjustable, it is dynamic. Many factors of the installation and operat …

Why test? Making and interpreting measurements is a crucial part of any job involving service, installation, design verification, engineering, or factory support of HVAC/R equipment. When it comes to verifying proper operation of the installed equipment it is critical that measurements made in the field are just as accurate as those made the laboratory. At Trutech we believe that we all have an obligation to assure that the equipment is operating at peak performance levels for the benefit of co …

It has been four years since the US introduction of the first generation of Testo refrigeration products. Our new generation of the Testo line of refrigeration system analyzers (RSA’s) will continue to change the way the HVAC/R world troubleshoots, commissions and services AC & refrigeration systems. Although the first generation of refrigerant products was highly successful, Testo has listened to our customers’ desires to develop a product line with the diversity to meet your most dem …