The HVAC world has been slow to adapt to the newer digital technology, and in the past, digital gauges were left to Besides the pressure scale, the latter also has a provisionįor measuring 0-29.9” of vacuum (approximately 50 microns).ĭigital manifold gauges began to rise in popularity due to the readings a technician can get quickly and reliably. A low-side gauge is calibratedįrom 0 to 100-250 psi (689-1723 kPa). (3445 kPa), whereas newer designs - from 0 to 250 psi (1723 kPa). Older high-side gauges are calibrated from 0 to 500 psi One is used for measuring compressor output. Some older designs come with three gauges. Numbers on the gauge face indicates the pressure or vacuum in the refrigeration system, whereasĭigital gauges provide a numerical reading, indicating system pressure or vacuum.Īll manifold gauges have high- and low-pressure gauges. In an analog gauge, the position of the needle in relation to the The gauges used with a refrigeration gauge manifold are either analog (with an The manifold body may also have a sight glass to observe the flow of the For easier use, valve wheels for the high and low sides are identified by theĬolor - the low-side handwheel is made of blue plastic or has a blue decal in its center, whereas the high-side Used on R-12 and R-134a manifold gauges are usually arranged in the same way throughout the form factors - on a Internal passages are arranged so that the device can read the pressure when the valves are closed. The manifold body made of brass or aluminum has special passages for connecting other manifold parts. Picture below, you may discover the main parts of a common manifold gauge. There are 2-valve manifold gauges, 4-valve manifold gauges, and more. Gauges have the same construction, the form factor may vary depending on the manufacturer of the tool. In shops that perform a large volume of airĬonditioning work, technicians often have their own manifold gauges as part of their toolset. Reducing the chance of cross-contaminating a service machine. Manifold gauges are used to remove contaminated or unknown blend refrigerants from the air conditioning systems, Have one or more manifold gauges to make pressure checks when the machine is being used on another vehicle. Many shops with refrigerant service machines may Technician must have R-134a and R-12 manifolds to service modern vehicles. Withstand, which is highly important when working with different refrigerants.īeing the basic refrigeration system tool, the manifold gauge is used as a diagnosis and a service device. Along with it, gauges can be characterized by the pressure they are designed to They differ in the number of ports, alias manifolds, that are usedįor attaching accessories. The process of testing or charging the device. Gauges are used to read the pressure of various liquids and gases in a cooling system, as well as vacuum pressure in Professionals in a vast range of spheres.
A reliable set of gauges represents a valuable asset for a number of Oning, and refrigeration service technician, you have certainly faced the need for using manifold gauges. Working as a heating, ventilation, air conditi
0 kommentar(er)
