Facility Piping Systems Handbook, Second Edition
Using a total systems approach, this handbook progresses from fundamentals of system and component operation to a design procedure that allows quick and accurate component and pipe sizing.
TABLE OF CONTENTS Facility Piping Systems Handbook, Second Edition
Chapter 20: DRINKING WATER SYSTEMS
Drinking water systems provide either chilled or ambient temperature water used only for drinking purposes. This chapter describes the drinking water systems, selection of components, design criteria and the piping distribution system used to supply and distribute chilled water to all units of the system.
CODES AND STANDARDS
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Americans With Disabilities Act. (ADA) Accessibility of all drinking fountain types.
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ANSI/NSF 61. Testing criteria recommendations for the Clean Drinking Water Act.
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ASHRE Standard 18. Ratings and test methods.
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American Refrigeration Institute (ARI) Standard 1010. Standard rating conditions.
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American Refrigeration Institute (ARI) Standard 1020. Standard Rating Criteria
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Clean Drinking Water Act. Contaminant levels for potable water.
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Applicable plumbing code that regulates the number of drinking fountains.
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Federal Specifications for government agency projects.
SYSTEM COMPONENTS
Drinking Water Fixtures
Bottled Water Unit. Bottled water units are not considered plumbing fixtures because they have no connection to any plumbing system. These units are completely self contained and do not require a piped water supply or a drain. Water is supplied from bottles, generally containing 5 gallons of water, that must be replaced when empty. Water is discharged from faucets and dispensed into cups because there is not enough pressure to use a spout. Spills are contained in a receptacle on the unit under the faucet and must be emptied when full. If not emptied, the water overflowing the spill receptacle will spill onto the floor. If electricity is available, the water could be cooled or heated.
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