Monday, March 21, 2016
3:15 p.m. - 4:45 p.m.
CEU Value 0.2
How Indoor Blower Motor Technology Has Changed Airflow Diagnostics
Christopher Mohalley, Regal Beloit
The knowledge level required to understand how airflow is affected by Total External Static Pressure (TESP)
has increased with the evolution of indoor blower motors. Today's HVAC systems are predominantly built
with three different types of direct drive motors: Permanent Split Capacitor (PSC) induction motors, Constant
Torque Electronically Commutated Motors (ECM) and Constant Airflow ECM. Each of these motors reacts
differently to changes in TESP. This session will cover the operating characteristics of each type of motor
related to airflow, energy savings, and application. Attendees will gain the knowledge necessary to teach
Electronically Commutated Motor (ECM) operation and diagnostics related to Total External Static Pressure
(TESP) including how TESP affects system efficiency and motor longevity.
Optimizing HVACR Industry Support in Local Educational Programs
Dave Negrey has over 40 years of experience with Johnson Controls and affiliated brands. He will share his
knowledge of the best practices for getting local involvement and factory brand distribution support in
HVACR educational programs. This session will include ideas for soliciting advisory council support, factory
brand training curriculum and other technical resources which are available.
Retention Versus Instructors
Dr. Timothy Muckey, El Camino Community College
Student Retention is the sole responsibility of an instructor and the fact is instructor behavior, mannerisms,
character, speech, attitude and other personal traits affect student retention more than any other single
element. Have you wondered why some instructors seldom lose students while others can hardly keep them?
This class is for you. Recent research and statistics will be revealed, but the focus of the presentation will be
on the key element of all programs - The Instructor. Learn how to keep your students once you get them!
Arthur Miller, RSES
Hydrocarbons as refrigerants, the next generation. The EPA's SNAP Program has approved 4 hydrocarbon
and 1 HFC refrigerant for use in New Equipment. This session will review the regulations and standards of
use. HC refrigerant properties and safety will be considered as well as system component compatibility.
Cylinder storage and transport will be a concern with HCs as well as servicing procedures and these will be
discussed in the session.