6) Fire extinguisher cabinets;
7) Exit signs and emergency lighting;
8) Specific occupied areas not to be protected by automatic sprinklers; and
9) Interconnection of HVAC system (dampers, fans) with duct smoke
detectors and/or fire alarm system.
b. Provide calculations; and
c. See DD2, paragraph 16, SPECIFICATIONS, for specification requirements.
9. HEATING, VENTILATING & AIR CONDITIONING
a. Provide the first version of the room-by-room heating and cooling load
calculations. These calculations shall be accompanied with the architectural
drawings showing correlation between each HVAC zone boundary and the floor
area, and a room schedule showing correlation between the architectural room
numbers and abbreviated/coded room numbers used with computer input data
sheets. Provide input manuals (if not provided earlier during DD1) for the computer
programs with clear indications of the capabilities and limitations of the programs.
Show derivation of all "U" factors for building elements based on the actual building
construction and published window data. The accuracy and the level of detail of the
calculations shall be consistent with the development of the architectural drawings.
Update these calculations during subsequent design phases to reflect all changes
and availability of additional information. Include the following calculations:
1) Peak zone-by-zone heating and cooling loads;
2) Building block heating and cooling loads;
3) Estimated steam consumption from all sources;
4) Psychrometric chart for each air handling unit showing cooling and
heating coil conditions and computation of humidification loads. Show coil
entering and leaving conditions and fan motor heat gains for supply and return
air fans; and
5) Room-by-room air balance charts for each air handling unit showing
supply, return, exhaust, make-up, and transfer air quantities with an intended
pressure relationship, that is, positive, negative or zero with respect to adjoining
spaces.
b. Submit complete engineering calculations and selection of major HVAC
equipment, such as chillers, cooling tower, air handling units, heating and
Program Guide, PG-18-15, Volume B
Design Development 2
May 2006
Page 37
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