Using the field guides

Purpose of this website

CoolOps Field Guides provides informational articles and examples for US HVAC technicians. Each guide states its scope. Use the material alongside current manufacturer instructions, applicable requirements and your professional training.

Examples and downloadable documents

Sample customers, work orders, readings and prices are fictional. They illustrate documentation and do not describe work performed at an actual property. Sample tax calculations are not instructions for handling a particular jurisdiction's taxes.

You may print, download and adapt the provided blank worksheets and examples for your own service documentation. Replace demonstration details with accurate information before using a document for a real job. Do not present a CoolOps example as an agency-approved form or an independent inspection certificate.

Scope and current information

A general guide cannot determine the safe procedure, required record or correct measurement for every system. Regulations, equipment requirements and product features can change. Consult the linked primary sources and the actual equipment documentation when a decision depends on those details. These pages do not establish a technician-client relationship or provide individualized legal or tax advice.

The CoolOps app

The website can link to CoolOps on the App Store. The app's current purchase information appears there. App use is subject to the applicable license terms, including Apple's standard end-user license agreement where applicable. Downloading a website PDF does not create an app account or import that document into the app.

Corrections and contact

We welcome corrections with supporting sources. Contact support@coolops.app and include the guide address. See our editorial policy and website privacy information.

Apple trademarks

Apple, the Apple logo, iPhone and iPad are trademarks of Apple Inc., registered in the U.S. and other countries and regions. App Store is a service mark of Apple Inc.