HVAC:
Schematics*
DD**
CD***
HVAC specifications
*
Submit, as a minimum, a single line layout for at a scale not less than
1:100 (1/8 inch). Submit a complete double line layout of areas of critical
importance, at a scale of 1:50 (1/4 inch) including equipment.
** Submit minimum 1:100 (1/8 inch) scale floor plans, new and renovated,
incorporating all of the revisions required by comments from schematics.
*** Submit fully dimensioned, complete, and coordinated 1:100 (1/8 inch)
scale floor plans, incorporating all revisions required by comments from the
design development phase.
H. NOTES:
1. Provide specific design recommendations and full back-up data. Include the
heating and cooling capacities of each functional area and the block cooling and
heating loads for each new and/or existing building.
2. The locations of these louvers must not allow short circuiting of air from
intake etc. Consider factors affecting louver location such as visibility, historical
considerations, wind direction, nuisance and health hazard odors (from
3. Include room-by-room, peak zone-by-zone, and building block heating and
cooling loads. Provide a tabulation of steam consumption based on data from all
sources. Show correlation between each HVAC zone boundary and architectural
floor area correlation between the architectural room numbers and
abbreviated/coded room numbers used with computer input data sheets.
4. Show supply, return, exhaust, make-up, and transfer quantities with intended
pressure relationships, i.e. positive, negative, or zero with respect to adjoining
spaces.
5. Provide pertinent data on accessories such as pumps and cooling tower etc.
Show the extent of the outside chilled water and condenser water piping. Clearly
show how the piping will be laid in tunnels, trenches, or by direct burial.
6. Show ceiling clearances, at locations where ducts cross each other, by
providing 1:50 (1/4 inch) scale local sections. Show all ductwork, and piping 150
mm (6 inch) and larger in double line. Show separate floor plans for air
distribution and piping unless waived by VA. Show clearances required for
access and maintenance with coil and tube pull.
Program Guide, PG-18-15, Volume C
25
May 2006
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