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FIXTURES, FAUCETS AND FIXTURE FITTINGS

SECTION 409 be permitted to be substituted for not more than 50 percent of
DISHWASHING MACHINES the required number of drinking fountains.
409.1 Approval. Commercial dishwashing machines shall 410.5 Prohibited location. Drinking fountains, water coolers
conform to ASSE 1004 and NSF 3. Residential dishwashers and water dispensers shall not be installed in public
shall conform to NSF 184. restrooms.
409.2 Water connection. The water supply to a dishwashing
machine shall be protected against backflow by an air gap SECTION 411
that is integral with the machine or a backflow preventer shall EMERGENCY SHOWERS
be installed in accordance with Section 608. Air gaps shall AND EYEWASH STATIONS
comply with ASME A112.1.2 or A112.1.3.
411.1 Approval. Emergency showers and eyewash stations
409.3 Waste connection. The waste connection of a com- shall conform to ISEA Z358.1.
mercial dishwashing machine shall comply with Section
802.1.6. 411.2 Waste connection. Waste connections shall not be
required for emergency showers and eyewash stations.
409.4 Residential dishwasher waste connection. The waste 411.3 Water supply. Where hot and cold water is supplied to
connection of a residential dishwasher shall connect directly an emergency shower or eyewash station, the temperature of
to a wye branch fitting on the tailpiece of the kitchen sink, the water supply shall only be controlled by a temperature
directly to the dishwasher connection of a food waste dis- actuated mixing valve complying with ASSE 1071.
poser, or through an air break to a standpipe. The waste line
of a residential dishwasher shall rise and be securely fastened
to the underside of the sink rim or counter top. SECTION 412
FAUCETS AND OTHER FIXTURE FITTINGS
412.1 Approval. Faucets and fixture fittings shall conform to
SECTION 410
DRINKING FOUNTAINS ASME A112.18.1/CSA B125.1. Faucets and fixture fittings
that supply drinking water for human ingestion shall conform
410.1 Approval. Drinking fountains shall conform to ASME to the requirements of NSF 61, Section 9. Flexible water con-
A112.19.1/CSA B45.2 or ASME A112.19.2/CSA B45.1 and nectors exposed to continuous pressure shall conform to the
water coolers shall conform to ASHRAE 18. Drinking foun- requirements of Section 605.6.
tains, water coolers and water dispensers shall conform to 412.1.1 Faucets and supply fittings. Faucets and supply
NSF 61, Section 9. Electrically operated, refrigerated drink- fittings shall conform to the water consumption require-
ing water coolers and water dispensers shall be listed and ments of Section 604.4.
labeled in accordance with UL 399.
412.1.2 Waste fittings. Waste fittings shall conform to
410.2 Small occupancies. Drinking fountains shall not be ASME A112.18.2/CSA B125.2, ASTM F409 or to one of
required for an occupant load of 15 or fewer. the standards listed in Tables 702.1 and 702.4 for above-
[BE] 410.3 High and low drinking fountains. Where drink- ground drainage and vent pipe and fittings.
ing fountains are required, not fewer than two drinking foun- 412.2 Hand showers. Hand-held showers shall conform to
tains shall be provided. One drinking fountain shall comply ASME A112.18.1/CSA B125.1. Hand-held showers shall pro-
with the requirements for people who use a wheelchair and vide backflow protection in accordance with ASME
one drinking fountain shall comply with the requirements for A112.18.1/CSA B125.1 or shall be protected against backflow
standing persons. by a device complying with ASME A112.18.3.
Exceptions: 412.3 Individual shower valves. Individual shower and tub-
shower combination valves shall be balanced-pressure, ther-
1. A single drinking fountain with two separate spouts
that complies with the requirements for people who mostatic or combination balanced-pressure/thermostatic
use a wheelchair and standing persons shall be per- valves that conform to the requirements of ASSE 1016/
mitted to be substituted for two separate drinking ASME A112.1016/CSA B125.16 or ASME A112.18.1/CSA
fountains. B125.1 and shall be installed at the point of use. Shower and
tub-shower combination valves required by this section shall
2. Where drinking fountains are primarily for chil- be equipped with a means to limit the maximum setting of the
dren’s use, the drinking fountains for people using valve to 120°F (49°C), which shall be field adjusted in accor-
wheelchairs shall be permitted to comply with the dance with the manufacturer’s instructions. In-line thermo-
children’s provisions in ICC A117.1 and drinking static valves shall not be utilized for compliance with this
fountains for standing children shall be permitted to section.
provide the spout at 30 inches (762 mm) minimum 412.4 Multiple (gang) showers. Multiple (gang) showers
above the floor.
supplied with a single-tempered water supply pipe shall have
410.4 Substitution. Where restaurants provide drinking the water supply for such showers controlled by an approved
water in a container free of charge, drinking fountains shall automatic temperature control mixing valve that conforms to
not be required in those restaurants. In other occupancies ASSE 1069 or CSA B125.3, or each shower head shall be
where drinking fountains are required, water dispensers shall individually controlled by a balanced-pressure, thermostatic

2018 INTERNATIONAL PLUMBING CODE ® 31
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