Apex HVAC Pro
Refrigerant Charging & Airflow Mastery
Superheat. Subcooling. Static pressure. The three measurements that separate techs from parts-changers.
$47
$47
Apex HVAC Pro
Superheat. Subcooling. Static pressure. The three measurements that separate techs from parts-changers.
What's inside
Superheat. Subcooling. Static pressure. The three measurements that separate techs from parts-changers.
Fixed-orifice charging with a fully worked example using real numbers. No more 'beer-can cold.'
TXV/EEV systems decoded — know exactly when the charge is right.
Wet-bulb + dry-bulb demystified once and for all.
Measure it in 60 seconds, read the result, find the restriction.
Including the filter upgrade that fixes more systems than any tool on your truck.
Test yourself before the next call — walk in confident.
How it works
Tap any "Get it now" button — you'll land on a secure Gumroad checkout.
Pay by card in under a minute. Free products just need your email.
Your files are ready immediately — on your phone, tablet, or truck laptop. Yours forever.
Questions
No. It starts from zero and builds with worked examples. If you can read gauges, you can follow this.
The $17 pack tells you WHAT to check. This teaches you WHY — and how to prove it with numbers.
Instant PDF download after checkout. Read on your phone between calls.
Instant download after secure checkout. Use it on your very next job.
