The design procedures contained in the following documents are considered good engineering practice in the field of potable water systems:
(a)
2011 ASHRAE Handbook of HVAC Applications, Chapter 50, “Service Water Heating”,
(b)
2009 ASHRAE Handbook of Fundamentals, Chapter 22, “Pipe Sizing”,
(c)
2005 ASPE Data Book - Volume 2, Chapter, 5, “Cold Water Systems”, and
(d)
2005 ASPE Data Book - Volume 2, Chapter, 6, “Domestic Water Heating Systems Fundamentals”. Alternative procedures shown below are also acceptable.
Pipe Size Based on the Number of Fixtures Units Served
Notes to Table A-7.6.3.1.:
(1) Where total fixture unit values exceed those given in this Table, the system must be designed according to a detailed engineering design method.