Manifold gauge sets, sometimes called HVAC gauges or refrigeration gauges, diagnose and repair refrigerators or cooling systems. They measure both low- and high-refrigerant pressure with mechanical mechanism, gauges are used to troubleshoot issues such as leaks or to help when evacuating and recharging a system.
HVAC Manifold gauges can play both diagnostic and service functions. For diagnostics, they are used to establish whether an HVAC system is working well or not. They also help to identify problems like leaks or pressure issues.
As a service gadget, the manifold gauge is used to release moisture and sludge. It also helps remove any contaminated or unknown refrigerants that may cross-contaminate the system. You can also use it to add refrigerant to .
Please note that although you can use most gauges to measure any refrigerant pressure, there are variations in function and specifics. So ensure the manifold gauge you are using matches the refrigerant used in the HVAC system or get a gauge that can read multiple gas pressure like the one we are showing you here it can read R22,R134,R600,R410 R408 R404, most refrigerants that we have in nigeria can be read with it.
The refrigerant used is always indicated on the system. However, it is good to note that there are gauge sets that can measure multiple refrigerants.
Below is an overview of manifold gauges and how you can use them effectively.
Although they are simple gadgets, they require special knowledge of using them. Therefore, understanding how they work is crucial for a technician to know.
Before you start using a manifold gauge, you need to understand how gas flows through the gauge. To review, the gas moves through the hoses that are attached to the manifold. The red hose goes to the red gauge, while the blue gauge goes to the blue because of the different pressure levels. The yellow hose in the center is separate and can go to any external source.