Air entering an air-cooled refrigeration...

Question 1 / 270705eccef9ebacbc34ba4d46145

Question 1 of 270705eccef9ebacbc34ba4d46145

Air entering an air-cooled refrigeration system is indicated by what operating symptom?

Question 1 of 27070

Air entering an air-cooled refrigeration system is indicated by what operating symptom?

🔍 Key Concepts

• Air in refrigeration systems and how it affects condenser performance • Difference between head pressure and suction pressure • What a sight glass and liquid line frosting actually indicate about refrigerant condition

💭 Think About

• If air is non‑condensable in the system, where will it collect and how will that affect condenser temperature and pressure? • Which of these symptoms would you expect if the system is short of refrigerant versus contaminated with air? • What does a completely full liquid line (no bubbles) tell you compared with one that is partially vapor?

✅ Before You Answer

• Be clear on how non‑condensable gases change condenser (head) pressure and temperature • Review what bubbles in the sight glass actually mean in terms of refrigerant charge and system condition • Compare which options describe too much heat in the condenser versus too little refrigerant in the line

Question 1 of 27070

Air entering an air-cooled refrigeration system is indicated by what operating symptom?

frosting of the liquid line

higher than normal head pressure

a clear sight glass

abnormally cold reefer boxes