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, se-
lection 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
1. Americans With Disabilities Act. (ADA) Accessibility of all drinking fountain
2. ANSI/NSF 61. Testing criteria recommendations for the Clean Drinking Water
3. ASHRE Standard 18. Ratings and test methods.
4. American Refrigeration Institute (ARI) Standard 1010. Standard rating condi-
5. American Refrigeration Institute (ARI) Standard 1020. Standard Rating Criteria
6. Clean Drinking Water Act. Contaminant levels for potable water.
7. Applicable plumbing code that regulates the number of drinking fountains.
8. Federal Specifications for government agency projects.
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 com-
pletely 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.
(DF) Drinking fountains are considered plumbing fixtures
and are directly connected to plumbing potable water and drainage systems. Water
to the unit is supplied either from a remote, central chilled water unit, adjacent
chiller unit for a single fixture only or ambient temperature water from the potable