How are manifold gauge service hoses typically colored?

Manifold gauge service hoses are typically color-coded to help identify the different pressure systems they are used for, ensuring safe and accurate servicing of refrigeration and air conditioning systems.

The low-pressure hose is colored blue, which corresponds to the low side of the system. This color coding helps technicians quickly identify the low side when connecting or disconnecting hoses, reducing the risk of mistakes.

The center hose, which is often used for refrigerant charging or recovery, is colored yellow. This is a standard practice that signifies its purpose for handling refrigerants and pressures safely with a different function than the dedicated low and high hoses.

The high-pressure hose is colored red, indicating it connects to the high side of the system. Like the low-pressure hose, this color helps maintain clarity for technicians, ensuring they attach hoses correctly to avoid potential hazards associated with high-pressure systems.

This standardized color coding is essential for safety and efficiency in HVAC maintenance and service work.