What is the purpose of the pressure...

🔍 Key Concepts

• Trace the pressure transducer symbol in the diagram and note exactly where it is tapped into the system (suction side vs discharge side of the compressor). • Identify which components in the illustration are labeled as suction modulation valves and which one is the quench valve, and see what piping they are connected to. • Think about what pressure each of those valves needs to respond to in order to protect the compressor and control capacity.

💭 Think About

• From the transducer’s location, would it be exposed to low-side (suction) pressure or high-side (discharge) pressure? How does that narrow the choices? • Which control – the quench valve or the suction modulation valves – would logically need feedback from suction pressure to keep evaporators and compressor stable? • Which control would more likely need discharge pressure or temperature information to protect the compressor from overheating or to maintain head pressure?

✅ Before You Answer

• Verify on the diagram whether the pressure transducer connection is on a blue line (suction) or red line (discharge). • Confirm the labels and positions of the suction modulation valves and the quench valve in the illustration before deciding. • Make sure the chosen option matches BOTH parts: correct pressure location (suction/discharge) AND correct device being controlled (quench vs suction modulation).

What is the purpose of the pressure transducer as shown in the illustration? Illustration GS-RA-17

it senses compressor suction pressure and controls the quench valve

it senses compressor discharge pressure and controls the suction modulation valves

it senses compressor suction pressure and controls the suction modulation valves

it senses compressor discharge pressure and controls the quench valve

🔍 Key Concepts

💭 Think About

✅ Before You Answer