If a refrigeration compressor is short...

Question 1 / 270705eccef9ebacbc34ba4d4613f

Question 1 of 270705eccef9ebacbc34ba4d4613f

If a refrigeration compressor is short cycling on high head pressure, what should you do?

Question 1 of 27070

If a refrigeration compressor is short cycling on high head pressure, what should you do?

🔍 Key Concepts

• High head pressure in a refrigeration system usually relates to condenser problems (heat rejection side) • Corrective action should normally reduce pressure, not push limits of safety controls • Effect of condenser water flow (too little vs. too much) on condensing temperature and pressure

💭 Think About

• Ask yourself: what condition in the condenser would make the discharge (head) pressure rise and cause short cycling? • Which choice directly addresses improving heat rejection, rather than masking the symptom by changing a safety setting? • For each option, imagine what happens to the condensing temperature and pressure if you do that action.

✅ Before You Answer

• Verify which option improves heat transfer in the condenser and tends to lower head pressure • Be sure you are not selecting an option that defeats a safety device or increases risk • Check whether the action would be a first troubleshooting step (simple system check) before more invasive work like purging or opening equipment

Question 1 of 27070

If a refrigeration compressor is short cycling on high head pressure, what should you do?

purge the condenser if the waterside is dirty

check for proper water flow through the condenser

increase the high pressure cutout setting

reduce the cooling water flow

Question 1 / 270705eccef9ebacbc34ba4d4613f

Question 1 of 270705eccef9ebacbc34ba4d4613f

If a refrigeration compressor is short cycling on high head pressure, what should you do?

Back

Question 1 of 27070

If a refrigeration compressor is short cycling on high head pressure, what should you do?