A boiler with 225 degree water and 150 psi is called what?

Prepare for the HVAC D-2 License Exam. Study with flashcards and multiple-choice questions. Each question comes with hints and explanations. Get ready for your HVAC certification!

Multiple Choice

A boiler with 225 degree water and 150 psi is called what?

Explanation:
A boiler is categorized by its pressure rating for hot water systems. A low-pressure boiler is defined as a hot water boiler whose design pressure does not exceed 160 psi and whose maximum water temperature does not exceed 250°F. In this case, the water is 225°F (below 250°F) and the pressure is 150 psi (below 160 psi), so it fits the low-pressure category. If either the pressure were above 160 psi or the temperature above 250°F, it would no longer be considered low pressure.

A boiler is categorized by its pressure rating for hot water systems. A low-pressure boiler is defined as a hot water boiler whose design pressure does not exceed 160 psi and whose maximum water temperature does not exceed 250°F. In this case, the water is 225°F (below 250°F) and the pressure is 150 psi (below 160 psi), so it fits the low-pressure category. If either the pressure were above 160 psi or the temperature above 250°F, it would no longer be considered low pressure.

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