An Air-Cooled R-12 Refrigeration System Is Operating Normally with a Suction

question 8

Multiple Choice

An air-cooled R-12 refrigeration system is operating normally with a suction pressure of 25 psig and a head pressure of 136 psig. Which of the following represents a possible set of operating pressures if the condenser fan motor burns out?

• A) high side 136 psig, low side 25 psig
• B) high side 100 psig, low side 15 psig
• C) high side 200 psig, low side 20 psig
• D) high side 180 psig, low side 35 psig

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