Manifold gauge called: System analyzer, Charging and testing unit, Test gauge manifold Gauge sets, or Manifolds only. Manifold gauge is a device that must be owned by a refrigerator and AIR CONDITIONER repair technician, this tool is really a great functionality when the repair involves I.e. Freon cooling media on a refrigerator or a refrigerant in airing conditioning in addition to empty/fill refrigerant as well as a tool to identify the disorder on the cooling system. The manifold was designed with standard construction so its easy to understand how its use by anyone around the world. Not just standard colors, but also type fittings-fittings required in connection nozzles are created by default.

The service manifold consists of: meters and meter double tap, two taps which are put together and the three hose filled with three different colors.

By connecting the service manifold to the system, we can more quickly found out the fault of the system. The second pressure meters from the service manifold can show us what is gone on in the system. In addition, the tool can be used to: shows the vacuum, filling the cooling ingredients, add the lubricating oil of the engine, check the pressure of the system and the compressor. See the image below shows the standard specification of a manifold gauge.

Image captions:
A-Pressure gauge
B-Manifold chamber
C-Compound gauge
A-Isolation valve blue.
B-Isolation valve Red.

The pressure gauge on the left side of the manifold is called a compound gauge because it can be used to measure the pressure of positive and negative pressure (vacuum), the range on the manifold start from 30 inch (0.76 m) Hg up to 0 psi to measure pressuring below atmosphere, and 0 psi to with 250 psi for the purposes of measuring the pressure above atmospheric pressure, the color blue is the compound gauge, then so to the hose that is connected to the left part of the nozzle manifold agreed this is blue.

The right side manifold pressured gauge called a pressure gauge, range on the gauge from 0 psi up to 500 psi. This gauge colors code red is similarly a color red hose agreed.

As for the middle of the manifold there is a nozzle that hosing color coded yellowed. The relationship than the nozzle is the third such as shown in the picture above the manifold. That is as follows; When both valve (a and b) is open then the channels of all interconnect nozzles, flow from the yellowing hose able to flow into the hose blues or red hose and vice versa from the Red hose to the hose could be blue or yellow hose, as well as from the blue hose can drain into the red and yellow hoses just the magnitude of the pressure that will determine where the flow will lead.

When valves open b only while a valve closedby turning it clockwise until the muscovy duck, then the relatuinship of nozzles inside the manifold are as follows; It is a yellow nozzle be connected with a short reddest nozzle so the flow will only occur from thehose to the hose yellows red or vice versa from red to yellow to hosed depended on circumstances rather than pressure of the moment.

Then if the position of the valve is opened replaced a valve that is only openest whiled the valve b closed meeting then chances are the prevailing flow on a manifold is as follows; the flow of the nozzle is a yellow will flow to the nozzle a blue but could not flow into the Red hose, reverse the flow of the blue hose can flow into the hose are yellowing but will not pass to the Red hose nozzle.

Then if the second valve (a and b) is closed tightly, then each nozzle in the manifolds are not interconnected, meaning there is no flow can take place between each nozzle. Given a manifold such construction is then when the Central nozzle not required preferably paired lid (cap) so that if an error occurs in the operating manifolds discharge material extravagance does not occur.

A cooling machine for a lot of us use Besides showing the magnitude of the pressure in psi can also indicate the magnitude of the temperature of evaporation cooling ingredients in Fahrenheit. A pressure in psi at meters, also shows the temperature of evaporation of some materials, such as refrigeration: R-12, R-22 and R-502. With the equation for the pressure and temperature of evaporation, we no longer need to see a table of the relationship of temperature and pressure of the coolant.

Read the temperature of the refrigerant gauge manifold.

Generally the cooling machine for given units of pressure in psi and vacuum in the inch Hg. Temperature of evaporation cooling ingredients in Fahrenheit. We have to get used to wear such units in psi (pounds per squarest inches gauge), inch Hg vacuum, Fahrenheit and others.

To use a gauge manifold as the refrigerant temperature gauges read on the Board. The temperature of the refrigerant is directly proportional to the pressure of the refrigerant, that is, the higher the pressure, temperatures were also higher. So did the opposite. For example for measurement on R22.

At the time of R22 refrigerant then measures the temperature scale being used I.e. that reads the R22 in the picture above in green. For measurements above using the Fahrenheit temperature unit. If psi pressure 49, then the temperature of the refrigerant is 25oF

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