What would be a major consequence of allowing the refrigeration system of a low-pressure fixed CO2 fire extinguishing system to remain inoperable?

Question

Accepted Answer

The entire charge may eventually be lost due to CO2 boil-off venting through the relief valve.

Answer

Liquid CO2 would overflow from the tank through the drain line as the temperature is increased.

Answer

Excessive condensation inside the tank would freeze causing a restriction in the discharge piping.

Answer

The warmed charge of CO2 would not be effective in extinguishing a fire.

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