ASME A112.19.7-2020 pdf download

ASME A112.19.7-2020 pdf download.Hydromassage bathtub systems.
ASTM International (American Society for Testing and Materials)
D2444-17
Standard Test Method for Determination of the Impact Resistance of Thermoplastic Pipe and Fittings by
Means of a Tup (Falling Weight)
D2564-12
Standard Specification for Solvent Cements for Poly( Vinyl Chloride) (PVC) Plastic Piping Systems
F876- 19
Standard Specification for Cross/inked Polyethylene (PEX) Tubing
IAPMO (International Association of Plumbing and Mechanical Officials)
IAPMO/ANSI Z1033-2013e1
Flexible PVC Hoses and Tubing for Pools, Hot Tubs, Spas, and Jetted Bathtubs
NFPA (National Fire Protection Association)
70 (2017)
National Electrical Code
UI (Underwriters Laboratories Inc.)
1563-2009
Standard for Electric Spas, Equipment Assemblies, and Associated Equipment
1795-2016
Standard for Hydromassage Bathtubs
3 Definitions and abbreviations
3.1 Definitions
The following definitions shall apply in this Standard:
Accessible — accessible by removing an access panel, door, or similar obstruction, using tools.
Circulation system — the inlets, outlets, pumps, air induction systems, valves, piping or tubing, fittings, and other appurtenances used to circulate water from a hydromassage bathtub system.
Note: The circulation system can be factory or field assembled, and it can be independent or interconnected.
Disintegrate — to lose any material from a fitting, exclusive of plating or finish.
Fixture — a device that receives water, waste matter, or both and directs these substances into a drainage system.
Hydromassage bathtub system — a plumbing system that incorporates one or both of the following:
a) water jets, with or without air introduced by integral suction. The water jets include a water recirculation system with self-draining piping and a water pump; and
b) an air induction system that introduces air into the system through jets using a blower or air pump. Note: A hydromassage bathtub system can be piped or unpiped (e.g., a pipeless whirlpool bathtub).
Jet — a fitting that creates a high-velocity stream of water with or without induction of air.
Pipeless whirlpool bathtub — a bathtub equipped with one or more unitized jet/suction fittings to circulate water without piping and discharge the water after each use.
Plumbing appurtenance — a manufactured device, prefabricated assembly, or field assembly of component parts that is an adjunct to the basic piping system and plumbing fixture.
Note: An appurtenance demands no additional water supply, nor does it add any discharge load to a fixture or the drainage system.
Standard liquid detergent — a mixture of 8.0% tetrapotassium pyrophosphate, 7.0% ethoxylated-alkylphenol, 8.0% sodiumxylenesulfonate, 1.5% butyl cellosolve, and 75.5% water, measured by volume.
Note: The following commercial products are acceptable:
a) tetra potassium pyrophosph ate: Monsanto TKPP;
b) ethoxylated-alkyl-phenol: Monsanto Sterox NJ or Rohm & Haas Triton X-100;
c) sodiumxylenesulfonate: Stepan Chemical Co. Stepan SXS; and
d) butyl cellosolve: 2-butoxy ethanol.
Unitized jet/suction fitting — an apparatus with a means for circulating water in a whirlpool bathtub without routing the water through the circulation system.
3.2 Abbreviations
The following abbreviations shall apply in this Standard:
ABS — acrylonitrile-butadiene-styrene
CPVC — chlorinated polyvinylchloride
GFCI — ground fault circuit interrupter
ID — inside diameter
OD — outside diameter
PEX — crosslinked polyethylene
PVC — polyvinylchloride
4 General requirements
4.1 Electrical requirements
When tested as a full assembly, the electrical systems of hydromassage bathtubs shall comply with
CSA C22.2 No. 218.2 and/or UL 1795, as appropriate.
4.2 Plumbing fixtures
Plastic bathtubs shall comply with CSA B45.5/IAPMO Z124. Enamelled cast iron and enamelled steel bathtubs shall comply with ASME A112.19.1/CSA B45.2.
4.3 Plumbing supply fittings
Plumbing supply fittings shall comply with ASME A112.18.1/CSA B125.1 and plumbing waste fittings shall comply with ASME A112.18.2/CSA B125.2.