What is the color code sequence for the manifold gauge?

The correct sequence for the color coding of manifold gauges is that red is designated for the high side and blue is assigned to the low side. This standardization is crucial for technicians as it ensures consistency and safety when connecting gauges to a refrigeration system. By using red for the high-pressure side, it visually warns of the potential dangers that come with high pressure, while blue being used for the low-pressure side is aligned with most tools and systems, making it easy for professionals to identify and distinguish the pressures involved.

The use of these specific colors helps prevent errors in connection and ensures that technicians can quickly and accurately read the gauges. Understanding this color code is fundamental for anyone working in refrigeration and air conditioning systems, as it directly impacts the efficiency and safety of the service being performed.