Attachment 5 - MAHG211009 - Appendix D - Mech Design Reqs.pdf

Mechanical Design Requirements

1. The 65% MECHANICAL drawings should be substantially complete. The 65%

MECHANICAL drawings should depict the following as a minimum: (The 35% drawings provided with the solicitation package do not begin to show all of the drawings that will be required for the project. Extensive detailing is required throughout as well as a considerable number of additional drawings in order to fully explain/represent the construction effort)

a. Cover sheet with title, vicinity map, AMC insignia, drawing index, design team member list.

b. Haul route on base.

c. Magnetic as well as ‘plan’ north arrows.

d. List of primary codes used for design, Code analysis, primary applicable code sections, and occupancy classifications.

e. Extensive Specifications for all work in current CSI format including all new proposed mechanical equipment, controls equipment.

f. Legend, Graphic symbols, detail symbols, abbreviations.

g. Site Plan. Identify: New and existing Equipment, Refrigerant Line Locations and Line Sizes, other Utility Conflicts, Curtain Wall location, all existing mechanical Site Demolition, points of Pipe Entry to the building. Indicate Equipment service Clearance and free air space between equipment and walls.

h. Site General Notes & Keynotes: With all notes properly numbered and referenced on the floor plan.

i. Floor Plans :

1) Refrigerant Line Locations and Line Sizes (as required)

2) Chilled water Line Locations and Line Sizes (as applicable)

3) Condensate lines sizes and termination point

4) Ductwork Locations, Sizes, Takeoff dampers

5) Vertical Ductwork isometric drawing with location and sizes

6) Equipment Tags

7) Air Device Locations with CFMs

8) Fire Damper locations

9) Outside air Intakes that are coordinated with ATFP requirements

10) Motorized Damper locations that are coordinated with ATFP requirements

11) Exhaust & Make-up Air Fans. Provide hinged access for all roof mounted exhaust fans and gravity vents. These shall be coordinated with ATFP requirements

12) Shelter In Place Button locations that are coordinated with ATFP requirements

13) Kitchen Exhaust Hoods that are coordinated with ATFP requirements. See item 11.

14) Duct Access Doors. See item 11.

15) Variable Air Volume Boxes

16) Thermostat locations

17) Control Component locations

j. Interior General Notes & Keynotes: With all notes properly numbered and referenced on the floor plan.

k. Appropriate ‘key’ plans when facility size and/or drawing scale/size dictates for ease of cross reference.

l. Locations of Wall or Roof Penetration for any penetrations of the mechanical systems: Fire rated walls, SCIF rated walls Exhaust Louvers, Roof Vents, Air Intakes.

m. ¼” Scale Plans: Mechanical Room Floor Plans and Section Details.

n. Controls: details including a proposed control point matrix for all new and existing equipment, diagrams for all existing controls system architecture, and the integration of the new work with the existing controls.

Attachment 5

FA301024R0008

o. Design aspects of the control systems:

1) New and existing component schematic diagrams with device names that correspond to the controls matrix and sequence of operations

2) Sequence of operations for every control scenario: occupied hour mode, after hours mode and shelter in place mode. This includes winter and summer seasonal conditions.

3) Total building floor plan wiring control diagram.

4) Integration of the new controls work with the existing mass notification & ATFP systems.

5) Controls commissioning. A narrative of the controls commissioning is required to be included with the 65% plans on the controls drawings. See Appendix L for an example of a controls commissioning narrative.

p. Details: Mechanical Room Section Detail Drawing at no less than ¼” per foot and the following non-scaled component details

1) Duct Connections: (Duct Transition, Guide Vane, Flex Connections, Flashings)

2) Equipment Structural Support

3) Variable Air Volume Boxes

4) Coil Piping Connections and Devices

5) Wall, Floor or Roof Penetrations for Piping, Fire Damper and Ductwork: (for any penetrations by mechanical systems: Fire rated walls, SCIF rated walls)

6) Roof Vents

7) Air Intakes

8) Motorized Dampers

9) Gravity Dampers

q. Diagrams: Piping diagrams for chilled water system with all devices and components depicted (include flow directions). Control Diagrams with all devices labeled with the same nomenclature as described in the point to point Control Matrix.

r. Schedules: for each piece of mechanical equipment and for all proposed equipment or controls components.

1) Air Handlers

2) Air Devices: Grilles, Diffusers, Louvers, Gravity Vents, Roof Curbs

3) Variable Air Volume Boxes

4) Chillers

5) Chilled Water Components: Buffer Tank, Expansion Tank, Air Separator

6) Pumps, Inlet strainers, triple duty valves and pressure gauges (where required)

7) Boilers and Water Heaters

8) Kitchen Hoods

9) Exhaust Fans, Powered Ventilators and Supply Fans

10) Building pressurization and space air balance criteria

All equipment shall have capacities listed including efficiencies, electrical or fuel requirements, static pressure and fan air quantities as applicable to the system, fluid flow and pressure head quantities as applicable to the system, heat transfer capacities, outside

(fresh) air make-up conditions, cooling coil requirements based on sensible heat, latent heat and total heat gains. Heating equipment requirements. Outside and inside design dry and wet bulb conditions

s. Provide design analysis narrative including basis of design, all calculations associated with the design, include ambient and indoor design temperatures. Include all design considerations

(per UFC 3-410-01 Heating, Ventilating, and Air Conditioning Systems) including outside air calculations with personnel counts, heating/cooling load calculations identifying all equipment within the space, and supporting documentation per UFC (i.e.: Psychometric plots, etc.) as applicable. Provide expansion tank calculations and chiller loop volume with buffer tank sizing, as applicable.

2. The 95% MECHANICAL drawings are expected to depict the following as a minimum:

a. All of the previously described items as well as any items discovered to be missing during the review of the 65% documents.

b. Completion/correction of any items or concepts that were shown at the 65% design level.

c. Completion/correction of equipment schedules, sequence of operations, logic diagrams, control point matrix and layout of new work.

3. The 100% MECHANICAL drawings are expected to depict the following as a minimum:

a. All of the previously described items as well as any items discovered to be missing during the review of the 95% documents.

b. Signed and sealed plans by a Mississippi registered Professional Engineer licensed in the mechanical discipline.