©2016 TTAC Parts Corporation Site Design: MDVC Creative. There are three primary components in a vehicle’s air conditioning system including the compressor, condenser, and evaporator. These parts are connected by tubes and hoses to form a continuous path with two distinct sections: a high-pressure side and a low-pressure side. In order to transfer heat from the vehicle’s interior to the outside air, a chemical refrigerant is circulated throughout the system. In theory, the A/C system accomplishes the same task as the engine’s cooling system, in that both absorb the heat from one area and release it to another (heat transfer). While coolant remains a liquid during the heat transfer process however, refrigerant repeatedly alternates between a liquid and a gas as it circulates throughout the air conditioning system. The compressor is a pump that pressurizes and circulates the refrigerant in the air conditioning system. It is mounted on the front of the engine and driven by the serpentine drive belt or its own individual belt.

The compressor also serves as one of the two junctions separating the high and low sides of the system. Similar to the radiator, the condenser is a large heat exchanger located directly behind the grille. As part of the system’s high side, the condenser is used to liquefy the high-pressure vapor discharged from the compressor. A condenser consists of a series of tubes surrounded by thin fins, which provide a large surface area for heat dissipation. While there are various tubing arrangements used, refrigerant flow is always from top to bottom. Like the condenser, the evaporator is also a heat exchanger consisting of tubes and fins. However, that’s where the similarity ends. Unlike a condenser, which is designed to release large quantities of heat, an evaporator is used to absorb large quantities of heat. An evaporator is also much smaller than a condenser and is part of the system’s low side. Evaporators are located in the air handling case along with the blower. This is a fixed metering device located inside the liquid line between the condenser and evaporator.

The orifice tube is enclosed within a plastic housing and protected by a fine mesh filter. weight of a 5 ton ac unitThe filter prevents debris from clogging the tube.cost of moving hvac unit A variable metering device that varies refrigerant flow based on cooling demand. military air conditioning units for saleAs demand increases, the valve opens wider to permit more refrigerant into the evaporator. Once the demand has been satisfied, the valve opening is reduced to decrease flow. Cooling demand is detected within the expansion valve or by a sensing bulb mounted on or near the evaporator. Receiver Drier or Accumulator Depending on the vehicle, the A/C system will either have a receiver drier or an accumulator. Both of these components contain a desiccant, which is a chemical that attracts moisture.

The desiccant serves a vital function, since the combination of water and refrigerant forms corrosive acids. Acids not only reduce A/C performance, they can ultimately destroy the system. The receiver drier and accumulator also serve as temporary holding tanks for liquid refrigerant. Although these two parts serve similar purposes, the receiver drier is connected to the condenser outlet (high-pressure side) and is used exclusively in expansion valve system. In contrast, the accumulator is attached to the evaporator outlet (low-pressure side), and is only found in orifice tube systems. The primary functional difference is that the accumulator is designed to prevent liquid refrigerant from being drawn into the compressor.TSRTK offers Red Dot mobile HVAC systems. Red Dot designs and builds movile HVAC systems and components for a wide range of heavy-duty commercial and military vehicles including trucks, buses, tractors, off-road equipment, building machines ect. Red Dot units are available from TSRTK.

TSRTK supplies Red Dot HVAC systems for compact equipment, dozers, graders, backhoes, skit steer loaders ect. Aftermarket Parts & Systems As an authorized distributor, TSRTK offers Red Dot aftermarket parts and the industry's most comprehensive catalog of all-makes, parts, accessories, and unit kits. compressors, clutches, service parts, heater cores, evaporator coils, fittings and accessories, controls, blower motors, condensers, fans, hoses, filters, service equipment, and more. Red Dot supplies heating and air conditioning systems and components for fire trucks, ambulances, and other emergency service vehicles. A high-performance A/C is a health and safety feature, allowing a rescure truck to function as a recovery station where personnel can go to cool down. TSRTK offers a diverse protfolio of Red Dot products to help equipment owners and technicians operate and maintain their heavy-duty mobile HVAC systems. TSRTK offers Red Dot heating, air conditioning, and ventilation units and systems for large interiors like buses.

New Orleans, LA 70121 7387 E Industrial Dr Baton Rouge, LA 70805 1513 West Willow Street 10145 South Park DriveHome > Truck Parts Directory > Heating and A/C Become the page sponsor for Truck Heaters and Air Conditioning Suppliers! CAB Air Conditioning Inc. Cab Air Conditioning, Inc. Is a full service warehouse distributor serving the heavy duty market. Located in West Central Pennsylvania. We serve all of PA, Western New York, Eastern Ohio and Northern West Virginia.We represent the major suppliers of heaters and air conditioners, engineered specially for heavy duty vehicles.  We also stock and sell replacement parts for these same systems. Cab Air Conditioning, Inc. also offer full service for HVAC Systems in large trucks and off-the-road vehicles.  We service highway trucks in our state of the art facility, conveniently located at Exit 14 of I-80, in Brookville, PA.  We also operate four mobile service trucks, offering jobsite service for operators of heavy equipment, and truck fleets.

Cab FreshCab Fresh Filter Company manufactures a patented filter device that attaches to the air intakes of the heater and air conditioning systems on some pickups and most models of over the road trucks. Our filters attach easily with no drilling required using push-pull fasteners and screws, which hold the filter firmly in place and are reusable on most models. Our filters are durable so that you can wash your truck without having to remove them. Breathe easy dual filter systems keeps you and your interior clean! Removes 97% of all diesel soot, dust, and dirt. They reduce odors 76%, road grime and pollen. Our new filter contains Spor-Ax, which contains an antimicrobal layer which helps trap bacteria. Benefits continue by reducing clogging fans, heating and air conditioning cores. Our primary layer combined with our charcoal layer provide an excellent team for trapping and eliminating dirt.  Drivers report to us a big improvement of air quality in the vehicles using the "Cab Fresh Filters", along with reduced allergy problems.

Replacement elements are available for all our filters. We currently serve over 400 dealers in the US and Canada. All sales are guaranteed 100 percent! Call 1-800-457-3739 or click the above link to learn more. Carrier TransicoldCarrier Refrigeration Operations, we are an integral part of the world's largest manufacturer of refrigeration, air conditioning and heating systems and equipment. And a global leader in transport refrigeration and air conditioning. Carrier Transicold specializes in the transport applications of refrigeration and air conditioning in five main areas: Container, Truck/Trailer, Marine, Bus/Rail, and Replacement Components. To serve these sectors on a truly global scale, Carrier Transicold operates 11 manufacturing facilities in eight countries. And we oversee a network of more than 600 dealers, service locations, and parts depots worldwide. Dometic Corp.Clean and quiet ... The Duo-Therm heating/cooling system is compressor-driven and operates independently of your truck's engine.

Easily installed as a rooftop or internal floor-mounted unit, it can be powered by the a battery/inverter system, an on-board generator, or externally from any standard 115-volt AC outlet. So regardless of the weather outside, now you can save fuel, maintenance and money inside. While enjoying the maximum in sleeping comfort.  Indel B North AmericaMaradyneDreison International Inc., is the Cleveland, Ohio-based privately held parent company of Turbo Industries Inc., Marion Manufacturing Co. Inc., Maradyne Corporation, SuperTrapp Industries Inc., DCM Manufacturing Inc., Eagle Engineering & Manufacturing Inc., and Dreison Europe.  As a group, these companies manufacture and market proprietary products for both the original equipment and aftermarket heavy-duty truck, off-road equipment, mining, agricultural equipment, industrial and transportation industries Marks Air Inc.Our Company is considered to be one of the leaders in the mobile air conditioning industry. We provide parts, installation and service for all types of trucks, off-road equipment, and domestic vehicles.  

Marks Air thrives on challenging situations and projects. Modine ManufacturingModine Manufacturing Company is an independent, worldwide leader in heat-transfer and heat-storage technology serving vehicular, industrial, commercial, and building -HVAC (heating, ventilating, air-conditioning) markets. Modine develops, manufactures, and markets heat exchangers and systems for use in various OEM (original equipment manufacturer) applications and for sale to the automotive aftermarket (as replacement parts) and to a wide array of building markets. Northstar Flameless Northstar Flameless Ltd. is a Calgary based manufacturer of propane powered catalytic heaters. The company was established in 1964 to service the expanding heating needs of the trucking industry. Proheat Thermal Technology Proheat is the manufacturer of the No. 1 diesel-fired coolant heaters for cab warmth, engine pre-heat, fuel savings and reduced engine wear in North America.  Proheat has recently introduced PROHEAT I.C.E., a diesel-burning AC/DC generator for entire truck comfort providing heating, air conditioning and independent electricity for running all of your appliance to give you all the comforts of hom.