Skip to main content

Browse by Topic

The concept of superheat

October 19, 2021

We illustrated the concept of superheat in last week's article by boiling water and superheating steam in a moonshine still. This week we will apply this concept to refrigerant in an air conditioning system.  The still has been replaced with an evaporator. 
Read Article >

Airsept, Burgaflex and Sanz Kenway honored for MACS Trade Show best new products

October 7, 2021

Three MACS member companies received honors for their new products introduced at MACS 2021 Trade Show, October 1st at the Rosen Centre Hotel and Convention Center in Orlando, FL.
Read Article >

Understanding and troubleshooting data lines on heavy-duty trucks

September 23, 2021

Understanding and Troubleshooting data lines on heavy-duty trucks will be presented byLarry Turay of LETCO Enterprises. In Larry’s Saturday morning class, attendees will learn how components and subsystem inputs and outputs can influence HVAC operations. 
Read Article >

Cooling fan circuit analytics

September 16, 2021

What is Peter Orlando’s class Cooling Fan Circuit Analytics about? It all began decades ago as a mechanical fan attached to the water pump with and without a fan clutch.  And now it has evolved into an efficient complex electrical motor control of cooling the modern internal combustion engine.
Read Article >

The Humble Mechanic wants to see you at MACS

September 2, 2021

Charles Sanville, better known as the Humble Mechanic is MACS Keynote Speaker. Come see Charles on Thursday, September 30 at 11:30am at The Rosen Centre Hotel in Orlando, FL.
Read Article >

Back to school bus A/C

September 1, 2021

Since it’s September (and another school year is upon us), we’re going to look at what’s so different about school bus A/C as compared to the more common automotive-type systems.
Read Article >

Mind the compressor clutch gap

August 31, 2021

One of the first things I was taught in my A/C training was to always check the clutch air gap prior to installing a compressor. 
Read Article >

Who are MACS future leaders?

August 27, 2021

Nominations are now open for the 2022 MACS board of directors’ election. Are you ready to get involved and help shape MACS for the future?
Read Article >

Two clues to a condenser’s identity

August 24, 2021

There are two steps to determining what type of condenser is in a vehicle.
Read Article >

What type of condenser is in that vehicle?

August 17, 2021

What type of condenser is in that vehicle? It's a frequent question in the mobile A/C industry.
Read Article >