State Industries 317913-000 manual 123456789011, What is Hot Water?

The major objective of this presentation is to promote the design of energy-efficient commercial water heating systems through proper sizing, equipment recommendations and system selection. Properly designed commercial and industrial water heating systems are essential to the health and well being of the community. Some activities would have to suspend operations or risk serious health and comfort problems if they do not have the quantity of hot water at the temperature needed during the time it is required.

Therefore, the key to proper water heating system design is to identify the quantity, temperature and time characteristics of the hot water requirement. Also, space available for equipment should be noted.

But first, a knowledge of water and its characteristics is necessary in order to effectively design a water heating system.

QUANTITY

TEMPERATURE

TIME & SPACE

SYSTEM CONCEPTS

What is Hot Water?

Hot water is water to which heat energy has been added . . .as more heat is added the water becomes hotter. This water temperature guide shows typical water heating system design temperatures.

In practice, the system designer will establish the temperature or temperatures of hot water needed for the various activities through consultation with the user or their representative. It is also necessary for the system designer to know the coldest entering water temperature in order to determine temperature rise.

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*The average temperature of the hot and cold water mixture applied to the body.

The hot water being normally obtained from the commercial water heating system at 140°F.

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