R410a Refrigerant

Manifold gauges for R410A R22 etc

Manifold gauges help you in Checking pressure to fill refrigerant as per specification . Manifold gauge has three lines or hoses of different colors.Right hose is of red color,left side hose is of blue color and the middle hose is of yellow color.

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Blue is low end side

• It is also known as compound gauge because it can measure the pressure of the refrigerant and also the vaccum.
• It measure pressure in PSIG (pound per square inch) and vaccum in inches of mercury.
• It has inner rings for most common refrigerants like R22,R410A and R404A.
• It is connected to suction line and generally you can see some insulation.
• Measures pressure between 0 to 120 PSI.

Red is high end side

• It is connected to liquid line and generally has no insulation.
• It can measure pressure between 0 to 500 PSI(Much higher than blue hose).

Yellow line is multipurpose

• Yellow line is connected to vaccum pump when evacuating the refrigerant.
• Yellow line is connected to refrigerant cylinder when charging the system.

Points to remember

• Gauge and knob for both blue and red lines are of the same color as line.
• You need to make sure that only one of kind of refrigerant is inside the system for correct reading.

How PT Chart correponds to Manifold gauges

• For R410A Refrigerant 100 PSI corresponds to 32 degree farenhite in PT chart.You can verify the same of R410A Scale in compound gauge.
• For R22 Refrigerant 70 PSI corresponds to 41 degree farenhite in PT chart.You can verify the same in R22 Ring in compound gauge.
• For R410A refrigerant 500 PSI corresponds to 134 degree farenhite in PT Chart.You can verify the same in R410A ring in High side gauge.

Yellow jacket manifold gauges are easy to read and even easier to connect.They provide very accurate readings and last very long time.