What is the general minimum temperature that must be maintained in order to use a wet pipe sprinkler system?

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Multiple Choice

What is the general minimum temperature that must be maintained in order to use a wet pipe sprinkler system?

Explanation:
Wet pipe sprinkler systems keep water in the piping at all times, so the surrounding space must stay above freezing to prevent the water in the pipes from freezing and damaging the system. The standard minimum ambient temperature used to protect a water-filled system is 40°F (4°C). This provides a safety margin to account for heat loss, door openings, and cold spots, ensuring the water remains unfrozen and the system remains ready to deliver water when needed. Temperatures at or near freezing increase the risk of freezing and pipe damage, which is why lower temperatures are not acceptable.

Wet pipe sprinkler systems keep water in the piping at all times, so the surrounding space must stay above freezing to prevent the water in the pipes from freezing and damaging the system. The standard minimum ambient temperature used to protect a water-filled system is 40°F (4°C). This provides a safety margin to account for heat loss, door openings, and cold spots, ensuring the water remains unfrozen and the system remains ready to deliver water when needed. Temperatures at or near freezing increase the risk of freezing and pipe damage, which is why lower temperatures are not acceptable.

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