ParkSmart Bunk A/C System Freightliner P3 Cascadia
March 24, 2021
The ParkSmart auxiliary HVAC system has been offered to replace the standard auxiliary HVAC unit.Read Article >
Why does the replacement compressor use different oil (than the original unit)
March 23, 2021
That is viscosity and specifically why a replacement compressor might use a different viscosity oil than its OEM counterpart.Read Article >
Marks Air celebrates 50 years of mobile air success
March 16, 2021
MACS member Marks Air Inc. celebrates 50 years of being in business.Read Article >
Tank full of air!
March 15, 2021
The problem is usually caused by excessive air in a system, and since too few shops use a refrigerant identifier, they don’t know when these problems come up, nor how often they are solving problems by doing this.Read Article >
Time to plug into EV training
March 10, 2021
Read any automotive publication or website, and you will see numerous stories from all the big automotive manufacturers and quite a few shiny new start-ups about vehicle electrification.Read Article >
How much oil “goes” in the compressor?
March 9, 2021
There is also an additional step which is required in the oil draining process with this unit. That step is that the suction damper needs to be depressed to allow proper ventilation when draining one of these compressors.Read Article >
Helpful tips to register for MACS online training clinics
March 5, 2021
Helpful tips on how to register for a class on the MACS websiteRead Article >
Compressor Oil: When is it enough?
February 9, 2021
But how do we know that a system has the correct amount in it to start with?Read Article >
Tales from the helpline: When they don’t know, what they don’t know!
January 26, 2021
By Richard Hawkins, MACS Technical Contributor Last week, my topic of discussion for the MACS blog was a tech call about an A/C system which was plagued by a huge...Read Article >
Let me tell you a story…
January 12, 2021
I conducted my first A/C clinic in 1991 which of course was 30 years ago. That was right along the time when things were getting geared up for the transition from R-12 to R-134a and was a very interesting period.Read Article >
Safety Alert: Online Sales of Cool Penguin F-12
November 23, 2020
Refrigerant safety alertRead Article >
Back to basics
September 9, 2020
There is no doubt that when it starts getting hot outside, your shop gets slammed with customers asking for help with their A/C systems. Same thing happens here at MACS, except we get slammed with A/C tech support calls.Read Article >