Guides

Practical HVAC/R buying guides for preparing parts, equipment, and tools enquiries.

HVAC/R Guides

HVAC/R Buying Guides

Explore practical checklists and answers for parts, equipment, and tools. Prepare your requirements, then contact your nearest branch to confirm supply details.

✨ Featured Guide

AC Spare Parts: Model Number or Part Number?

Understand the difference between an AC unit model, serial number and component reference when requesting spare parts.

3 min read

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Replacement parts

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Browse every guide to prepare a clear enquiry for your nearest branch.

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Tools & measuring instruments

October 6, 2026•2 min read

HVAC Measuring Instruments: Include the Required Probes

Specify measurement tasks, instrument models and compatible probes when preparing an HVAC/R tools order.

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Equipment & system scope

October 6, 2026•2 min read

Air Handler or Condensing Unit? Name the Supply Scope

Distinguish indoor air-handling equipment, outdoor equipment and individual components in an HVAC supply enquiry.