Which Testo Analyzer Fits Your Work, the 320 or 330? - Part 2

In this episode of HVAC Know It All, host Gary McCreadie talks with Jamie Chadwick, HVAC Product Manager at Testo Instruments - North America, about combustion analysis and technician safety. They discuss the 320 and 330 analyzers, sensor maintenance, digital reporting, and personal carbon monoxide monitoring. Technicians will learn how clean-air zeroing, annual service, and gas path checks support reliable testing.

Jamie teaches combustion analysis across furnaces and boilers using natural gas, propane, and oil. His classroom experience highlights practical mistakes, including zeroing near vehicle exhaust and leaving condensate-trap plugs loose. He connects those examples to equipment checks and the need to consult local codes and manufacturer specifications.

Key Takeaways How combustion readings provide a reference point for evaluating operation alongside local codes and manufacturer specifications.

Why field-replaceable sensors do not eliminate the need to send an analyzer in annually to verify its operation.

How digital reports preserve dated and timestamped readings and let technicians share test records with customers and the office.

How a wearable CO detector with an earbud option can support personal monitoring in loud mechanical rooms.

Why zeroing an analyzer in clean outdoor air, away from running vehicles and cigarette smoke, helps prevent distorted readings.

How a gas path check helps identify leaks that warrant checking hose connections, filter caps, and the condensate-trap plug.

Key Timestamps  00:00 - Factory Direct Filters Ad

00:42 - Guest and Episode Introduction

02:42 – Combustion training, operating ranges, and manufacturer specifications

03:37 – Testo 320 features and guided testing for newer technicians