Sigma Testing Manifold gauges in Nairobi Kenya, sometimes called HVAC gauges or refrigeration gauges, diagnose and repair refrigerators or cooling systems. They measure both low- and high-refrigerant pressure with either digital or mechanical gauges. This is in order to troubleshoot issues such as leaks or to help when evacuating and recharging a system. There are a lot of working parts in a HVACR system that require regularly checking for maintenance. Therefore, an important tool that you will need is a HVACR manifold gauge.
A manifold gauge is an essential tool for checking the pressure of refrigerants in HVACR systems. Moreover, it is a tool for diagnosing if the system is correctly charged with refrigerant or help service any issues. Additionally, a HVACR manifold gauge is ideal for many different functions. These include checking pressure, adding refrigerant, and determining if there is a leak.
There are different types of manifold gauges and often a HVACR technician may have multiple sets depending on the type of jobs they have. There are 2-valve and 4-valve manifolds. The gauge can be either analog or digital. Many digital gauges now have Bluetooth built-in for connecting to smartphones.
When deciding on a manifold gauge to buy, it is important to ensure the manifold gauge can withstand the rigors of field. Such includee including heavy duty casing, reinforced hook, water resistance, and impact resistant screen. Additional features such as data logging and strategically placed thermocouple ports are beneficial.
How to use a sigma testing manifold for HVAC applications
- Connect the high-pressure side of the cooling line to the red port on the gauge. The red port and red gauge are always high-pressure gauges. You will want to attach a code-approved red hose, which is made to withstand high pressure, using the flare fittings that are included with it, to the high-pressure port on the cooling unit. The high-pressure port can be of a different size and thread pitch than the low-pressure side in order to avoid the potential for accidental incorrect hookups.
- Connect the low-pressure side to the blue port of the gauge. The low-pressure side connects with a blue low-pressure hose to the blue pressure gauge and the low-pressure side of the cooling unit. It allows the proper flow of vacuum pressure in order to determine the vacuum pressure in the system.
- Attach a waste hose or vent hose to the center of the manifold set up. In case of discharging the unit, or venting freon by attaching the unit, you will need to attach a larger black low-pressure hose to the center port of the manifold. By doing so, you will be able to attach a refrigerant recovery bottle to the manifold set to avoid violating federal law regarding the release of refrigerant into the atmosphere.
- Attach micron meters or other gauges to the additional ports. The additional ports on the manifold can be used to attach micron (vacuum pressure) gauges, or even a vacuum pump that can be attached to some piece of furniture in order to perform the proper services to the cooling system as required for the repair that you are making.
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