From First Pipe to First Startup
The only VRF installation guide written by installers — not manufacturers.
Based on real field experience. No theory. No fluff.
One-time payment · $47 USD · Instant PDF download
Manufacturer manuals tell you what should happen. This guide tells you what to do so it actually happens — in the field, on a real job, under real conditions.
Based on 100,000+ tons of VRF installed in real projects. Every recommendation comes from actual installations, actual mistakes, actual fixes.
This guide covers LG and Samsung — the two most common VRF brands in the US market. It tells you what manufacturers don't.
Step-by-step. Checklist format. Clear and direct. Written for the technician on the job site, not the engineer in the office.
In 80% of cases, the fix is not a part — it's a correction. These are the three mistakes we see on almost every first install.
HP systems have 3 pipes — only 2 are used. Two pipes of similar diameter serve completely different functions. The system may start normally and fail months later.
Without N2 flow, copper oxide scale forms inside the pipe at every joint. It's invisible from outside. It damages the compressor, EEV, and heat exchangers over time. Nothing fails on Day 1 — it fails later.
ODU-side Y-branches face in the opposite direction from IDU-side branches. This is not intuitive and causes unequal refrigerant distribution. Accounts for 30%+ of VRF callbacks.
One guide. Everything you need. From first pipe to first startup.
Get the VRF Field Guide →One-time payment · $47 USD · Instant PDF download