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Division 15 Mechanical

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Corrugated steel or aluminum. Vitrified clay. PVC. BCN3611. 6. Type of Pipe Cont. ... Corrugated metal. PVC. BCN3611. 7. Manholes ... – PowerPoint PPT presentation

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Title: Division 15 Mechanical


1
Division 15 Mechanical
  • Site Utilities
  • Pipe and Fittings
  • Plumbing Fixtures
  • Plumbing Appliances
  • Sprinkler Systems
  • Heating Systems
  • Air Conditioning

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Site Utilities
  • Excavation (CY, depth, type of soil)
  • Bedding (CY, type of material, grading)
  • Piping (LF, type of material, class, size)
  • Fittings (each, type of material, size)
  • Backfill (CY, type of material)

5
Type of Pipe
  • Water System
  • Ductile iron pipe
  • PVC
  • Subdrainage System (perforated piping)
  • Bituminous
  • Concrete
  • Corrugated steel or aluminum
  • Vitrified clay
  • PVC

6
Type of Pipe Cont.
  • Gas Distribution System
  • Polyethylene
  • Steel
  • Sewage and Drainage Systems
  • Concrete
  • Corrugated metal
  • PVC

7
Manholes
  • Catch basins or manholes (including footing and
    excavation, excluding frames and covers)
  • Unit each, note size, depth, type of material
    (brick, concrete block, cast-in-place concrete,
    precast concrete) 

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Pipe and Fittings
  • Pipes LF, type (cast iron, copper, PVC, steel),
    class, size, type of connection 
  • Fittings each (or 60 to 75 of the cost of the
    pipe)
  • Piping specialties each (backflow preventer,
    cleanouts, drains, faucets, hydrants, shock
    absorbers, supports for plumbing fixtures)
  • Valves each, type of material, size, type
    (check, gate, relief, )

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Plumbing Fixtures
  • Bathtubs, lavatories, laundry sinks, shower
    stalls, sinks, urinals, water closets
  • Unit each, note size, type of material, shape,
    color

16
Plumbing Appliances
  • Water cooler, water heater, water supply meter,
    dishwasher, garbage disposal unit
  • Unit each, note detailed specifications

17
Sprinkler Systems
  • Wet pipe sprinkler system
  • Dry pipe sprinkler system (for areas subject to
    freezing, piping is filled with air under
    pressure)
  • Unit costs have been developed on a per head
    basis
  • The average area covered per head is from 80 to
    130 SF. For shopping centers cost is 100/head
  • Dry system costs 15 to 20 more

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Heating Systems
  • Warm-air heating system - consists of a heat
    source, ducts, fan, and grilles.
  • Hot-water heating system - consists of a heat
    source, radiators, piping systems, circulator,
    and expansion tank.
  • Steam-heating system - consists of a boiler or
    steam generator and a piping system connecting to
    individual radiators or convectors.

22
Boilers
  • Boilers produce steam or hot water and furnace
    produces hot air
  • capacity in MBH(1000 BTU/hour)
  • energy source electric, gas, or oil
  • Accessories
  • humidifier
  • tank
  • vent chimney

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Ductwork and Insulation
  • Galvanized steel (unit is pound)
  • Flexible, coated fiberglass fabric on corrosion
    resistant metal (unit LF, note diameter)
  • Rigid fiber glass duct board (unit SF)
  • Insulation
  • for ductwork (SF, note type and thickness)
  • for pipe (LF, note pipe size)

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Air Conditioning
  • All-air systems (for large systems) consists of
    a central station air handling unit, compressor,
    cooling coils, condenser, filters, and ductwork
    system
  • Packaged terminal air conditioner
  • Heat pumps
  • Accessories diffusers, grilles, registers,
    louvers, ventilators

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