Comments on: New Webinar Scheduled: Understanding Air Conditioners

By: M.Johnson

M.Johnson — Mon, 27 May 2013 19:42:59 +0000

It's great that you give this
It's great that you give this seminar. As an onlooker let me suggest one topic: the opportunity to downsize AC upon replacement. With typical AC one can observe sub-100% duty cycles in hot summer days. Establishes proof that smaller AC will do the job. Typical oversize goes along with excess ESP, existing duct system will definitely have lower ESP with lower airflow (illustrates a big hazard of upsizing on same duct system too!). This will not address some problems but it will address some very common ones. FWIW, done in own house.

By: Allison Bailes

Allison Bailes — Mon, 27 May 2013 16:50:18 +0000

Bob: I may
Bob: I may mention those topics, but the purpose of this webinar is mainly to help people understand the refrigeration cycle and the general principles of AC operation. Oversizing and distribution problems deserve their own webinars.

By: bob

bob — Mon, 27 May 2013 16:17:44 +0000

Hopefully you will go over
Hopefully you will go over the 2 most common issues with HVAC systems, oversizing and poor airflow :) These are the 2 major things missed by most HVAC contractors.

Oversizing a system to make up for crappy ductwork/installation practices is far too common.