A/C Theory and Labs

Instructor: Greg Scrivener
Date: April 14 - 17, 2025
Time: 8:30am - 5:00pm

Location:
SaskEnergy Training Centre
1301 Quebec Avenue ยท Saskatoon, SK

Class maximum: 16 people

Course Overview

The two days of theory will cover the following:

  • Refrigerant
  • Basic refrigeration cycle
  • Air movement and fans
  • Duct sizing and installation
  • Psychrometrics
  • Economizers and mixing air
  • Installations

The lab session (one day) includes hands-on training for residential air conditioning systems. The participants will work on a variety of different air conditioning systems and will learn how to safely use gauge sets, recovery machines, and vacuum pumps. (Participants will need to specify preferred lab date at time of registration. Space is available on a first come, first served basis.)

The main topics include:

  • Measurements of system parameters including superheat and sub-cooling
  • Refrigerant charging and recovery
  • Nitrogen purging and evacuation
Day 1 (1-hour Discussion)
Section 1: Overview of Air Conditioning Systems (1 hour)
  • Definition and purpose of air conditioning
  • Basic types, components, and applications
Section 2: Basic Refrigeration Cycle and Components (3 hours)
  • Refrigerants
  • Refrigeration system components
  • Basic refrigeration cycle theory
  • Common accessories
Section 3: Introduction to Psychrometrics (3 hours)
  • Properties of air
  • Psychrometric chart
  • Psychrometric processes (heating, cooling, mixing)
  • Economizer basics
Day 2 (1-hour Discussion)
Section 4: Fans and Air Movement (2.5 hours)
  • Types of fans
  • Duct work types and sizing
  • Diffusers and grilles
Section 5: Split System Installation (3.5 hours)
  • Cooling load consideration (no actual load calculations will be completed)
  • Refrigerant piping practices
  • Physical installation requirements
  • Refrigerant piping insulation and jacketing
  • Evacuation and charging
  • Code requirements
Section 6: Basic controls (1 hour)
  • Thermostats
  • Control strategies
  • Safety controls (cooling only)
Day 3 (0.5-hour Discussion)
Lab 1: Residential AC Operation (1.5 hours)
  • Measurements of system parameters
  • Adjustment of superheat
Lab 2: Residential AC Refrigerant Charging and Recovery (3 hours)
  • Refrigerant recovery
  • Refrigerant charging
  • Charging methods
Section 3: Nitrogen Purging and Evacuation (two stations) (3 hours)
  • Nitrogen purging
  • Vacuum pump operation
  • Vacuum measurement
  • Flow meters

Fees

MCAS/Merit Member: $1800.00 plus GST
Non-Member: $2750.00 plus GST

REGISTRATION FORM

Registration Deadline: March 28, 2025