06-06M
2.3 Identify rooms on plans with name and number.
2.4 Investigate and, if feasible, connect new services to existing;
otherwise, provide new services.
2.5 Identify on the plumbing drawings all equipment requiring connections
to the plumbing systems by appropriate symbol number.
Do not use the
designation N.I.C. on the drawings.
2.6 Due to the space requirements of plumbing systems and ductwork, closely
coordinate the layout of these systems. Where areas of interference
are apparent, prepare cross section of building showing method of
installation.
2.7 Piping over electrical rooms containing main distribution panels or
motor control centers shall be avoided where possible.
When piping is
necessary in these areas, indicate leakage protection on drawings or
in specifications.
3. EQUIPMENT SCHEDULES
Provide schedules, including capacity, control settings, services and
sizes, for Plumbing Fixtures and Water Heaters.
4. PLUMBING FIXTURES
Plumbing fixture numbers, description, fixture units and minimum branch
sizes are indicated in Article, PLUMBING FIXTURE SCHEDULES.
5. WATER DISTRIBUTION SYSTEMS
5.1 See Article, PLUMBING FIXTURE SCHEDULES, for water fixture units and
minimum fixture branch sizes.
5.2 Size the piping for the hot and cold water systems not to exceed the
maximum velocity allowed by the National Standard Plumbing Code.
Provide water hammer arrestors in accordance with ASSE 1010 for sealed
wall installations without access panels.
Size and locate arrestors
per Plumbing Drainage Institute (PDI) requirements.
5.3 Provide wall hydrants a maximum of 60 m (200 feet) apart, at loading
docks and at building entrances, with a minimum of one wall hydrant on
each exterior wall.
6. DOMESTIC HOT WATER SYSTEMS
6.1 Provide simplex electrical central heater with the capacity of
generating the flow demand at 60 degrees C (140 degrees F).
However,
heater discharge shall be 54 degrees C (130 degrees F).
Consider
Legionnaires disease, energy consumption and initial cost when
selecting a circulating system.
6.2 Size heater based on modified Hunter's Curve (Hot and Cold Water
Section, ASHRAE GUIDE AND DATA BOOK) and fixture unit count indicated
in Article, PLUMBING FIXTURE SCHEDULES.
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