910 Freeport Parkway, Suite 100 Coppell, TX 75019
+ (877) 342-5526

Model Specific Air Conditioning
1930's to 1980's Cars & Trucks
Since 1977

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The Condenser is a Heat Exchanger

How does your vehicles A/C work?

A brief overview, the air conditioning system in your car is comprised of a compressor, condenser, expansion valve, receiver/drier, and evaporator. Refrigerant (also known as Freon) is compressed in the compressor. In the condenser, gas is cooled to a liquid state and travels to the expansion valve. As the liquid refrigerant goes through the expansion valve it rapidly cools in the evaporator. A fan blows over the evaporator and cools the air that blows out your vents.

So what exactly is the condenser?

So what exactly is the condenser?

Normally made of aluminum the condenser plays an important role in your vehicles A/C system. So what does it do? The condenser is a heat exchanger. The refrigerant passes through the condenser and it releases the heat to the atmosphere.

The heat the refrigerant absorbed while it was flowing through the evaporator enters the condenser as a high-pressure vapor and makes its way through series of tubes with fins around it to expel this heat. After the refrigerant flows through these series of tubes in the condenser and cools, it turns back into a cooled high-pressure liquid


Connecting A/C Lines in a 70 Monte Carlo

The CAA car guys are here to help you figure out exactly what parts you need to get the A/C working in your classic car. Here’s a typical inquiry we get from potential customers looking for the right hoses for their upgraded air conditioning systems.

I put a serpentine drive system on my 70 Monte Carlo and need to connect the A/C lines from the Sanden compressor to the factory POA valve and factory condenser. Do you have fittings/hoses available for me to complete this project? I might also change the condenser so the fittings will both be on the passenger side of the engine bay.

Connecting a Serpentine Belt System to Factory Air in a 1970 Chevrolet C-10

We’ve been working on classic cars for several decades now, so we’ve got a good picture of the quality of thousands of different parts made by scores of manufacturers. If we see that you’re working with equipment of dubious virtue, we’ll let you know, as this customer discovered.

I installed a serpentine belt system with an R4 compressor. What is the best way to hook it up to the factory A/C system? I would like to convert the POA to the cycling system and will need to make the necessary changes for the 134a switch.

Determining the Correct Type and Size of Condenser

This inquiry from a Mustang owner reflects the challenge of constructing an A/C unit with parts from a variety of sources, and of finding parts that need to work with both original and non-original components.

I’m trying to sort out the components for an add-on A/C unit in a 64 F-100. I have a few early Mustang units so that’s what I’m using inside. I will mount a Unicla UP170 compressor low on the passenger side of the engine. I need to determine the proper size condenser for this given that I’ll be using 134a instead of the original R12. I have a 27″ x 16″ opening in the core support, and a non-original crossflow radiator that doesn’t mount like the OEM 64 F-100 unit did. I’d appreciate any input.

75 Trans Am – Custom AC Upgrade

One of our customers recently sent us pictures showing the installation of an evaporator and accumulator to upgrade the air conditioning system in his 75 Trans Am.  Whether you need modifications to stock parts for better performance, or you just want to achieve a certain look, we can help.

1975 Trans Am Air Conditioning

The picture to the left shows installation of a later model (77-79) evaporator & accumulator.  It installs in the early (74-76) model evaporator housing exactly as it does the later model housing, but the customer did not like the way the accumulator (canister part) is extended so far away from the housing and at an angle.