Understanding Gauge Manifold Sets

What is the primary function of the gauge manifold set in HVACR systems?

• To measure temperature

• To measure system pressures

• To control airflow

• To regulate humidity

Which color is associated with the low-pressure, compound gauge on the gauge manifold set?

• Red

• Yellow

• Blue

• Green

What does the high-pressure gauge on the gauge manifold set measure?

• Low-side pressure

• Discharge pressure

• Temperature

• Humidity

What is the typical range for most high-pressure gauges in terms of pounds per square inch gauge (psig)?

• 0 to 400 psig

• 0 to 600 psig

• 0 to 800 psig

• 0 to 1000 psig

What unit is used by the compound pressure gauge to measure vacuum?

• Pounds per square inch gauge (psig)

• Inches of mercury (Hg)

• Pascals

• Bars

What is the purpose of the center port on the gauge manifold set?

• To measure temperature

• For recovery, evacuation, and charging

• To control airflow

• To regulate humidity

What color is typically associated with the center port hose on the gauge manifold set?

• Red

• Blue

• Yellow

• Green

Which side of the gauge manifold set is the high-pressure gauge located?

• Left side

• Right side

• Center

• Bottom

What does the compound pressure gauge measure on the low side of the system?

• Temperature

• Humidity

• System pressure and vacuum

• Airflow

What is the significance of the color-coding of hoses in the gauge manifold set?

• To match the gauges for easy identification

• To indicate the temperature

• To show the humidity level

• To control the airflow