2. Description of the HVAC systems studied.
The general features, configuration, and
1. Demolition plans (where applicable).
functional advantages and disadvantages of each
2. Preliminary framing plans and key details.
system should be compared qualitatively.
Include column locations, bay sizes and location
3. Description of recommended HVAC system.
of expansion and seismic joints.
Include cost and other considerations.
3. Preliminary schedules, including:
4. Recommendations for HVAC systems for special
Column, beam, slab, metal deck, and wood
Automated data processing rooms, auditoria,
Preliminary seismic details.
conference rooms, kitchens and other special
spaces identified in the building program.
5. Proposed plumbing system.
Include lists of typical fixtures.
6. Evaluation of alternate sources for preheating of
1. Block loads for heating and refrigeration.
domestic water (solar or heat recovery).
2. Heat and air balance calculations.
7. Code criteria should be reviewed by each discipline
to the degree of detail necessary to assure that tasks
3. HVAC calculations for air handling units.
accomplished in this phase meet the code
4. Heat loss calculations for walls and roofs.
5. Energy analysis.
the building, taking into account architectural wall
1. Demolition plans.
and roof design and lighting.
2. Site plan.
Proposed inverts of sewers, stormwater pipes and
gas lines at the building service entrance, showing
1. Water supply calculations.
match to existing utilities.
Include pressure for domestic hot and cold water.
3. Floor plans.
2. Roof drainage calculations, should new roof
Proposed HVAC scheme, showing building zoning
and major duct and piping runs.
4. Floor plans.
1. Life Cycle Cost Analysis of at least three potential
Sketch layouts of mechanical rooms, showing
locations of major equipment. including size
The analysis should compare first cost and
variations by different manufacturers.
operating costs. One of the systems must be the
base line system described in the Chapter 1 of this
Alteration Projects Design Development
Revised March 2005 PBS-P100