Lusker asked: “What percent of sales are due to” cost factors as compared to sales through professionalism and the equipment brand sold.
Incorporate within that question: “What percent of sales are due to” advertising and other promotions as compared to the differential of equipment performance and durability.
will you please post a link to your website again
I am wondering why you want to view my HVAC Web pages.
I have many pages; it takes time and effort to get to all the links at the bottom of the various pages.
Here is one link:
Here are some PDF chart specifics on Superheat charging and temperature split for airflow, etc.
The absolute first thing to be done is, --an accurate evaluation of the insulation and air infiltration rate so the heat-gain and heat-loss can be minimized. "Energy Conservation ought to be a contractor’s motto."
Then, air flow ESP and SP drops along with airflow-hood testing should be done, --before the charging and temperature tests are used.
A proper, balanced heatload through all the evaporator circuits must be achieved before an accurate charge and Btuh performance can be achieved. - Darrell