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NAU Project No.: 09.600.141

Project Program Report

April 21, 2014

NAU Student and Academic Services Building: Project Program Report (April 21, 2014).

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Prepared by:

DWL Architects + Planners, Inc. 2333 N. Central Avenue, Phoenix, Arizona 85004 P: (602) 264-9731 F: (602) 264-1928 www.dwlarchitects.com

NAU Student and Academic Services Building: Project Program Report (April 21, 2014).

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TABLE OF CONTENTS

Cover -

Authorship 1

Table of Contents 2

01 Overall Project Information 3

02 Architectural Narrative 4

03 Structural Narrative 8

04 Mechanical and Plumbing Narrative 10

05 Electrical Narrative 16

06 LEED Certification Summary 19

07 Program summary of spaces: 21

Table 1: Net-assignable Area

Table 2: Non-assignable Circulation and Utility areas

Table 3: Net-assignable and Gross Area Calculations

Appendix 1: Architectural Outline Specifications

Appendix 2: Draft Program - Space requirements by room

Appendix 3: Draft Program – Furniture Schedule

Appendix 4: Detailed LEED Scorecard – Schematic Design.

Appendix 5: AV Systems:

AV Systems Schematic Design Quote

Network and Electrical Considerations

Appendix 6: Preliminary Estimated Energy Consumption Summary.

NAU Student and Academic Services Building: Project Program Report (April 21, 2014).

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01. OVERALL PROJECT INFORMATION

Project Team:

American Campus Communities 12700 Hill Country Boulevard, Suite T-200 Austin, Texas 78738 Construction Manager: Hardison Downey Construction 6150 N. 16th Street, Suite A Phoenix, AZ 85016 Architectural: DWL Architects + Planners, Inc. 2333 N. Central Avenue Phoenix, AZ 85004 602-264-9731 | 602-264-1928F Civil/ Landscape: The WLB Group 500 N. Beaver St. Flagstaff, AZ 86001 Structural: Caruso Turley Scott Structural Engineers 1215 W. Rio Salado Pkwy, Suite 200 Tempe, AZ 85281 Mechanical, Plumbing & Electrical: LSW Engineers Arizona, Inc. 2333 W. Northern Avenue. #9 Phoenix, AZ 85021 Audio Visual: CCS Presentation Systems / Southwest 17350 N. Hartford Dr. Scottsdale, AZ 85255

Project Description:

The proposed Northern Arizona University campus Student and Academic Services Building is an approximately 94,000 square foot academic building that will include a One Stop Students Service Center, Undergraduate Admissions Center, an auditorium, mathematics computer lab, classrooms, department offices, faculty offices, conference rooms, restrooms, circulation, support facilities, and interior mechanical spaces. Building systems components will be housed in a roof top penthouse and dedicated facility service access rooms.

NAU Student and Academic Services Building: Project Program Report (April 21, 2014).

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02. ARCHITECTURAL NARRATIVE

General Description: The proposed Northern Arizona University campus Student and Academic Services Building is an approximately 94,000 square foot academic building located at 1101 S. San Francisco Street in Flagstaff, Arizona. The new structure will be constructed abutting the west elevation of the existing San Francisco Street Parking Garage. Program facilities to be incorporated will include a One-Stop Students Service Center, Undergraduate Admissions Center with an 152 person auditorium, a Mathematics Emporium / computer lab, 3-5 classrooms, 4 department offices, 152 faculty offices, 5 conference rooms, restrooms, circulation, support facilities, and interior mechanical spaces. Building systems equipment and service pathways will be housed in a roof top penthouse, ground floor service access rooms and in a dedicated utility bay separating the new program areas from the existing parking structure. Program Configuration: The university’s approved space program for the new facility calls for the development of five primary functional use areas. The locations of these areas within the building are predicated upon the physical capacity, occupancy type and means of access/egress required to serve the intended program uses. Initial discussions between the design team and departmental stakeholders representing the One-Stop Student Center, Under Graduate Admissions and Math Emporium programs identified a three tier hierarchy for the functional uses and internal circulation requirements. Placement of the One-Stop Students Center and UG Admissions on the building’s first level was deemed essential to satisfying the anticipated service needs of both current and future students seeking assistance. The Math Emporium with its high volume usage, open instructional commons, sub-divisible classrooms, adjacent staff offices and desired external views logically positioned itself on the second level. The ACC project team was requested to develop a minimum of two design concepts for the Academic Departments space. The first concept adjusts the size of the departments’ development program to fit within a three story facility to come as close as possible to achieving the mandated 80,000 sf. maximum gross building area. The second concept increases the size of the gross building area as required to accommodate the Academic Department’s office space program in a four story facility. A 5,000 sf. mechanical rooftop penthouse sits atop the easternmost edge of the otherwise four story building structure. Conceptual Building Design: It is understood that the design for this project must create an appropriate identity for Northern Arizona University while respecting the context of the adjacent campus districts, the surrounding vocabulary of architectural language and the precepts contained in the Northern Arizona University Campus Master Plan. In support of this prerequisite the following narrative describes the underlying abstract for the schematic design of this project. The conceptual design for the Student and Academic Services Building project closely aligns the functional hierarchy of its programmed interiors with the articulated massing of its external envelope. The building’s exterior identity draws its aesthetic inspiration from the biologic forms of the area’s extensive Ponderosa Pine Forests and the architectural features of the existing campus facilities. The design for the new SAS Building brings together and visually celebrates the unique attributes of the NAU campus’s urban and natural environments. Site Improvements: Nestled between the imaginary lot lines of the Beaver Street transit spline (West), the existing San Francisco Street Parking Structure (East), the existing Bookstore (North) and Blome Drive (South), the site selected by the University significantly influences the architectural design. With its physical boundaries defined by adjacent structures, campus underground utilities paths, pedestrian circulation and vehicular right of ways, the resulting volume can accommodate a buildable volume approximately 356’ in length, 86’ wide and 78’ in height. The conceptual design of the first and second floor levels serve to

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avoid and/or minimize the project’s impact upon the project site’s existing construction. The building’s ground floor coverage is significantly reduced by supporting a portion of the second floor atop 2-story tall columns spanning beyond the existing diagonal sidewalks initially used to define the north and south limits of the project site. To better facilitate the new project’s development, the pedestrian entrance serving the parking structure will be relocated using the existing partial wall opening through the north side of the garage. A 1:20 sloped sidewalk serving both the parking structure’s new entrance and the SAS Building’s adjacent egress stair will extend to the existing University Bookstore sidewalk system. Beginning from ground level, the building primary entrances are accessed by ascending nominally sloping sidewalks, wide stairways or code compliant ramps. The first floor forms an elevated base rising five feet above the adjacent existing sidewalks that lead to the Bookstore. The One-Stop Students Service Center is located at the structure’s north end with its own separate building entrance while the Undergraduate Admissions Center with its attached auditorium occupies the south end. The new concrete sidewalk leading to the building’s main entrance near the center of its west elevation will required construction of minor retaining walls to restrain the sides of the ramp. This also serves to retain the existing five foot landscape strip supporting seasonal snow removal efforts. The existing campus domestic water & fire hydrant line, abandoned 4” steam line, water service line feeding the parking garage and the storm drain running immediately adjacent to sidewalk along the west edge of the project site will require partial relocation to facilitate the new construction. General Landscaping: The quantity of the site landscaping will be commensurate with that found throughout the general campus. Plant selections shall include shade tolerant species in the areas located adjacent to the building entrances, along the edges of south special events plaza and beneath the elevated portions of the second floor level. Site improvements will likely consist mostly of planting soft-scape and some hardscape materials with possible relocation of the bus stop amenities and bicycle storage components near the north end of the project site. Building Program Design: The first floor forms an elevated base rising five feet above the adjacent existing sidewalks that lead to the Bookstore. The One-Stop Students Service Center is located at the structure’s north end with its own separate building entrance while the Undergraduate Admissions Center with its attached auditorium occupies the south end. The main building entrance is located on the west between these departments and leads to a large central lobby from which elevators and a grand staircase circulate users to the higher floors in the building. A special events plaza shaded beneath the upper floors of the building and directly accessible from the auditorium fills out the south end of the first floor level. The second floor is defined by the open character and various scales of the functions for which it is intended. The primary academic spaces within the Math Emporium include three large sub-dividable classrooms at the north end, an enclosed testing lab, a sub-dividable tutorial room and the large open computer center with 250 workstations occupying the major portion of the south end. The second floor provides numerous small rooms for formal study as well as casual socialization spaces to enhance opportunities for incidental and cross-disciplinary learning. The third and fourth floors are configured to accommodate two general academic department office areas. Both floor plans hold the same number of department, staff and faculty occupants with only minor positional variations associated with area differences between the large/small and twin medium conference room sizes. Shared department amenities include large lobby waiting areas, open floor lounges with kitchenettes, various sized informal socialization spaces as well as numerous vision panels and skylights introducing natural light deep within the building’s internal corridors.

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Shell Construction: The primary building structure will consist of drilled caisson foundations supporting continuous concrete grade beams along the perimeter, concrete slab-on-grade on the First Floor and steel moment frame with concrete/metal decks at all Floors above. The first floor level will be raised above the 100 year flood plain record to minimize potential issues associated with flooding. Geotechnical remediation the existing expansive soil conditions will be required. Currently, the final determination regarding the selection of the building’s exterior wall and roof assemblies remains pending. It is anticipated, that one or more of the following building systems will be utilized to enclose the shell structure: a combined fire rated separation wall with one wall constructed of using a full height 1hr. gypsum shaft wall assembly and the other a partial 1hr. gypsum shaft wall infilling the openings in the precast concrete wall panels in the west elevation of the parking garage. Construction assemblies and materials shall also include pneumatically applied cementitious fire proofing on all structural steel members; typical metal pan tread stair assemblies will be used for the north and a south emergency stairways. The building’s exterior walls shall be constructed utilize both integrally colored cementiticious fiber and/or prefabricated metal rain screen panels mechanically fastened over a continuous HPS insulation system or interlocking insulated panel with surface waterproofing; insulated glass/aluminum storefront window systems (single story) at all building entrance; (2) hydraulic elevators co-located in a single hoistway with provision for the addition of a future third elevator); will insulated glass/aluminum storefront (fixed and operable) at all exterior window locations; 4’x12’ pre-manufactured roof skylights; structural roof decking sloped to drain; R-25 minimum 2” continuous rigid insulation and a “KEE” waterproof membrane system or other built-up system as required by the University. Exterior Elevations Design: As described briefly above, the building’s exterior design is being developed as an abstract portrayal of the surrounding region’s Ponderosa Pine Forests. The rise and fall of forest pathways through the local topography is depicted by numerous sidewalks, ramps and stairways leading up to the building’s exterior entrances and the elevated events plaza to the south. The exterior walls surrounding the first floor will incorporate vertical bands of glass interspersed with colored cementitious fiber and folded seam metal panels to visually represent the trunks of varying widths extending deeper into the forest. These elements enliven the forest appearance by visually interrupting the views of the activities occurring within the One- Stop and Undergraduate Admission spaces when viewed from the exterior. The degree of transparency decreases as the external wall treatments rise up to the second floor level. The intermittent placement study nooks, socialization spaces, and the large conference room along the west wall as well as the Math Emporium’s open computer center represent the natural voids between the opaque clusters of low hanging pine boughs. Different window sizes and groupings used to introduce natural light into these spaces are also separated by larger areas of opaque wall panels scribed with diagonal joint patterns to further enhance the conceptual image of the low forest canopy. The nominal amount of external wall transparency is reached on the third and fourth floors housing the Academic Department Offices. Here, the semi-sequential placement of much narrower operable office windows and modest lobby/study nooks fixed window openings allow natural light and ventilation filter into all of the exterior offices. Each opening is surrounded by opaque field panels scribed with more complex diagonal joint patterns arranged to convey both an image pattern of individual pine needles and to represent the dense upper crown of the forest canopy. Building Interiors: The anticipated interior finishes will consist of the following assemblies: a custom patterned .376” thick ‘epoxy terrazzo’ topping, ground and polished throughout the building’s ground floor lobby area; carpet flooring tiles used throughout the SAS and UA office service areas, the Math Emporium and Academic Department areas and all upper elevator lobbies; ceramic flooring and wall tiles in the restrooms; hard trowel concrete in the mechanical penthouses, utility service rooms and enclosed exit stairs, painted

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gypsum wall board enclosing all office and classroom spaces; elevator shafts and 2hr. rated exit stairs will be enclosed in painted gypsum wall board; acoustic sound paneling at select locations in the auditorium; fiber sound insulation within all walls surrounding the auditorium, testing, conference, restroom; mechanical and electrical rooms; suspended acoustic ceiling systems used throughout the facility with framed gypsum wallboard soffits and ceiling profiles at select locations (i.e., elevator lobbies & academic department conference rooms). The auditorium’s vista vision windows and all office windows shall be equipped with operable roll down window assemblies. Summary: The above narratives describe the primary design concepts and supporting construction technologies developed by DWL Architects + Planners and its consultants during the initial programming stages for the schematic design of this project. The building’s secondary sub-systems, components, materials and exposed finishes remain conceptual in nature and subject to change pending future input from various project stakeholders and combined development team (i.e., NAU, American Campus Communities, Hardison Downey, DWL, LSW, CTS, WLB, CCS and Speedie Associates). Working closely together, the members of this group will create a project that is distinctive and worthy of Northern Arizona University’s increasing prestige and which will faithfully serve institution for many decades to come.

CARUSO TURLEY SCOTT consul t ing structura l engineers

YOUR VISION IS OUR MISSION

PARTNERS

Richard D. Turley, PE

Paul G. Scott, PE, SE

Sandra J. Herd, PE, SE

Chris J. Atkinson, PE, SE

Thomas R. Morris, PE

Richard A. Dahlmann, PE

1215 W. Rio Salado Pkwy. Suite 200 Tempe, AZ 85281 T: (480) 774-1700 F: (480) 774-1701 www.ctsaz.com

April 18, 2014

Mark Dee, AIA DWL Architects 2333 N. Central Ave Phoenix, AZ 85044

RE: NAU Student and Academic Services Building (SD-Structural narrative) 1101 S San Francisco St, Flagstaff AZ, 86011 CTS Job No.: 14-122

Schematic Design Structural Narrative:

CODE:

This 4 story steel building with a penthouse at the roof will be design under the 2009 International Building Code.

STRUCTURAL SYSTEM:

Roof: The structural system at the roof and penthouse, consist of steel joists over steel deck supported by steel beams (WF-Sections) located at main grids and at cantilever areas.

Floors: The structural system at all floors consist of concrete topping over steel deck, supported by steel beams and wide flange steel columns located at all main grids. This composite system consists of 3” of normal weight concrete over 3” steel metal deck with 6x6xW2.9xW2.9 W.W.F. centered in the slab (6” total depth). Beams at all floor levels range from 16” to 30” in depth, and steel columns sizes will range between 12” and 14”.

Floor Level: The ground level will consists of a 5” concrete slab with #4 bars spaced at 18” o.c. each way over 4” of ABC, over a vapor barrier. Due to the type of soil under the proposed building, a stabilization process will be required (Refer to geotechnical report for further information).

Foundation System: The system for the building consists of concrete caissons (deep foundation). A caisson will be located at all main grid columns, elevators and stairs. The caissons will vary in size and in length depending on the final findings of pilot holes currently being done at the site, as well as recommendations from the soil engineer.

CARUSO TURLEY SCOTT consul t ing structura l engineers

YOUR VISION IS OUR MISSION

PARTNERS

Richard D. Turley, PE

Paul G. Scott, PE, SE

Sandra J. Herd, PE, SE

Chris J. Atkinson, PE, SE

Thomas R. Morris, PE

Richard A. Dahlmann, PE

1215 W. Rio Salado Pkwy. Suite 200 Tempe, AZ 85281 T: (480) 774-1700 F: (480) 774-1701 www.ctsaz.com

Building Lateral System: The lateral system of the building consists of steel Moment Frames (steel beams and steel columns). This particular system was selected by the design team with the intent that it will provide an open space. All Lateral columns will then be supported by concrete caissons.

End of Narrative

If you have any questions regarding this schematic design structural narrative, please call our office at (480) 774-1700.

Respectfully submitted,

Caruso Turley Scott, Consulting Structural Engineers.

2333 W Northern Ave, #9 . Phoenix, Arizona 85021-9334 . Telephone 602.249.1320 . Facsimile 602.336.3276

NAU STUDENT AND ACADEMIC SERVICES BUILDING

MECHANICAL, PLUMBING, & FIRE PROTECTION

SCHEMATIC DESIGN NARRATIVE The New Northern Arizona University campus Student and Academic Services Building will be an approximately 94,000 square foot academic building that will include an auditorium, mathematics computer lab, classrooms, faculty offices, restrooms, circulation, support facilities, and a mechanical penthouse. Facility mechanical system components will include chilled water variable-air-volume (VAV) air handling units with VAV boxes with hot water heat, perimeter finned tube convectors, steam to hot water heat exchangers, and heating hot water pumps. All mechanical, plumbing, and fire protection systems will be designed to meet NAU’s design guidelines and specifications. The specific design criteria to which the mechanical systems have been designed at the schematic design level are as follows: Summer Outdoor: 90°F db, 65°F wb Summer Indoor: 78°F Winter Outdoor: -20°F Winter Indoor (Mechanical Rooms): 50°F Winter Indoor (All Other Rooms): 72°F For energy modeling purposes, we have assumed setbacks of 5°F above cooling and 5°F below heating during unoccupied hours. Preliminary Envelope Values: Roofs Insulation Entirely Above Deck U=0.048 Walls Above Grade Steel Framed U=0.064 Floors Mass U=0.074 Vertical Glazing Metal Framing (All Other) U=0.55, SHGC=0.40 Skylight w/ Curb Plastic, 0-2% of Roof U=1.10, SHGC=0.77 These envelope values are based on ASHRAE 90.1 minimum values for preliminary energy modeling and load calculation purposes. Once a more detailed energy model is developed and compared to the ASHRAE 90.1 Baseline, these numbers will be adjusted to achieve the desired Energy and Atmosphere (EA) credits associated with LEED. These calculations will be performed using actual utility cost data from the campus steam and chilled water plants that will serve this building, as LEED EA calculations are based on energy cost savings. As the energy model is further developed, these energy costs will be compared to the ASHRAE 90.1 Baseline model to allow the design team to further evaluate the building’s envelope, mechanical systems, and electrical systems to determine the most effective energy cost savings approach, while still remaining cognizant of the building’s construction budget. Building Mechanical Piping Systems The building’s mechanical systems will be served by the campus chilled water, and the campus steam and condensate piping distribution systems.

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Six inch chilled water supply and return piping will be extended to the building from the campus chilled water distribution system with 15 psig of differential pressure at the building entrance. Tertiary chilled water pumps will not be provided, as all of the chilled water pumping on campus is done at the central chilled water plant. Chilled water will be supplied to the building at 42°F during the summer with a 20°F split. During the winter, the chilled water will be supplied to the building at 55°F, so the system has also been evaluated and sized for internal cooling loads during the winter with an elevated chilled water supply temperature. The chilled water piping will serve the chilled water cooling coils in the variable-air-volume (VAV) air handing units located in the mechanical penthouse. The chilled water system, including piping, valves, coils, strainers, etc., has been sized large enough so that the 15 psig that is being supplied to the building is adequate to serve the building during peak load conditions. A new 5” steam line and a 2” steam condensate return line will be supplied to this building to serve the building’s heating and domestic hot water systems. This new 60 psig steam line and condensate return line will connect to the existing 60 psig steam main and steam condensate main located in the steam tunnel that is located just west of the Transit Spine or Beaver Street. The new 5” steam line and new 2” steam condensate line will connect to the existing 10” steam line and 6” steam condensate return line in the existing tunnel. These new pipes will be routed to the building in a sloped concrete pipe chase that is shown on the civil drawings. The piping will be pitched toward the existing tunnel where a steam trap will be provided to remove condensate from the new steam line that serves the new building. This trap will be located in a new concrete vestibule that is being added to the existing tunnel for ease of construction and maintenance. Once the piping is extended up into the building’s Heat Exchanger Room, it will serve redundant shell and tube heat exchangers and redundant domestic water heaters. The steam pressure will be reduced from 60 psig to 15 psig via a one-third, two-thirds arrangement of Fisher 92B pressure reducing valves. A bypass will be included in this arrangement for maintenance considerations. An 8”, 15 psig steam line will be extended to the shell and tube heat exchangers. Two 100% redundant, 6,800 MBH Bell & Gossett QSU 14 4-2 shell and tube heat exchangers will be provided to handle the building’s heating requirements. Two 350 GPM, 100% redundant heating hot water pumps with 35 feet of head will be provided in this room and will be equipped with variable frequency drives (VFDs) to allow the pumps to vary speeds based on the building’s heating load. Basis of design will be Bell and Gossett 1510 base- mounted, end-suction pumps. The steam condensate from the heating hot water heat exchangers and the domestic water heat exchangers will flow to a condensate return unit in the same room. This unit will be ventilated to the outside and will have redundant condensate return pumps which will pump the condensate at 35 GPM and 50 psig back to the main campus condensate line located in the existing steam tunnel. The heating hot water system will serve hot water heating coils in the VAV air handling units, single duct variable-air-volume terminal units, miscellaneous cabinet and unit heaters in mechanical spaces, stairways, and entry vestibules, and the snow melt systems. Hot water finned-tube convectors will also be utilized in all perimeter spaces. Due to the high percentage of outside air that is required by ASHRAE 62.1-2007 for the air handling units, the heating hot water loop will serve plate and frame heat exchangers located in the penthouse. These heat exchangers will transfer heat from the building’s heating hot water loop to 40% propylene glycol loops that will serve the heating coils in the air handling units. This will allow the majority of the building that does not have freezing concerns to run off of the standard heating hot water loop, while keeping the glycol loops located in the penthouse. Each air handling unit will be provided with a separate heat exchanger and glycol loop, consisting of redundant in-line Bell & Gossett pumps, sized for 90 gpm and 25 feet of head. One common glycol feed system will supply both loops. Per NAU guidelines, run-around heat recovery loops have been provided for both air handling units since the outside air quantities exceed 50% of the total airflow. These coils will be provided with heat recovery pumps sized at approximately 150 GPM and 40 ft of head. Since demand control ventilation is being used on this building, an energy simulation will be run to compare the effectiveness of the heat recovery coil

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versus the fan and pump energy penalty that will be seen year-round. It is our opinion that the heat recovery coil may end up penalizing the overall efficiency of the system since the unit will have an air-side economizer and the fans would be seeing the extra pressure drop year-round. Once the energy model is further developed, this simulation will be shared with NAU for their input. An hydronic snow-melt system will be provided to serve the north entrance of the building. The area served by this system will be approximately 1,500 square feet and will be served by a snow melt manifold located on an adjacent exterior wall. Flexible snow-melt tubing will be run from the manifold into the adjacent concrete slab where it will heat the concrete slab to melt the snow. In a remote room, a small plate and frame heat exchanger, a snow melt pump, and a glycol feed unit will be provided to serve the snow melt manifold. The plate and frame heat exchangers will transfer heat from the building’s heating hot water loop to the 50% propylene glycol snow melt loop. Snow melt sensors will be provided in the slab so that the system will only run when appropriate temperatures and moistures are detected. As requested by NAU, an alternate bid number should be provided for providing an additional snow melt system that will serve approximately 2,000 square feet along west side of the building. Chilled and heating hot water piping within the building envelope will be Schedule 40 steel or Type L copper tubing with either threaded, welded, or brazed joints depending on the size of the pipe and application. Grooved or press-fit fittings will not be acceptable. Direct buried chilled water piping will be specified by the civil engineer. Steam piping will be Schedule 80 steel pipe with welded and flanged joints for piping larger than 2” and threaded joints for piping 2” and smaller. Steam condensate piping will be Schedule 80 steel piping with welded and flanged joints for piping larger than 2” and threaded joints for piping 2” and smaller. Chilled water, heating hot water, and steam and condensate piping will be insulated with pre-formed mineral fiber pipe insulation with thicknesses that meet or exceed the local energy code. The steam piping and chilled water piping entering the building will be supplied with BTU meters for tracking through the building automation system. Air Handling and Air Distribution System Two central 40,000 CFM VAV air handling units will be located in a mechanical penthouse on the roof, with one unit serving the north half of the building and one unit serving the south half of the building. The air handling units will consist of a return plenum, a relief fan array controlled by a redundant unit mounted VFDs without bypasses, energy recovery coils located in the supply and relief air stream, an economizer section with dampers and controls, side loading pre-filter (4” pleated MERV 7) and side loading final filter bank (6” rigid MERV 13), heating and chilled water coils with access on the discharge side of each, a freezestat located on the leaving side of the hot water coil, and supply fan array controlled by redundant unit mounted VFDs without bypasses. The supply and return fans will have air flow measurement capabilities. The chilled water coil and the heating hot water coil in these air handlers will have two-way control valves that will modulate to maintain leaving air temperatures. The heating hot water coil will have a 40% propylene glycol loop as discussed in the previous piping section. The units have been selected and sized with a 450 fpm velocity across the cooling coil per NAU guidelines. The casing of the units will be double-wall, non-porous 18-gauge construction. Access will be provided all around the air handling units for coil, fan, filter, and damper access. Basis of design for air handling units will be Temtrol, with Energy Labs, Huntair, and Haakon listed as equivalents. The air handling units will be ducted to intake and relief air louvers. The intake louver will provide outside air to the air handling unit. A 42” deep plenum will be provided on the penthouse side of the louver to allow any fly snow to fall out of the air stream. The bottom of the plenum will be provided with a small electric snow melt system with the snow melt system only activated if temperature and moisture sensors detect snow in the plenum. A drain will be provided in this plenum to allow any melted snow to drain. The outside air duct to the unit will connect to the plenum as high as possible in order to minimize the potential for snow getting into the air handling unit. Air flow measurement stations will be provided in the outside air

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ductwork. The relief duct will come out of the back of the unit and will be ducted directly to the relief louver in the penthouse wall. Main supply and return ductwork will be routed down to the floors below in two centrally located shafts. Supply and return branches will be taken off on each floor. Supply ductwork will extend through the plenum space above the ceiling and will serve VAV terminal units with hot water reheat coils. One VAV terminal unit will be provided for every two offices and one VAV terminal unit will be provided per conference room. Spaces such as the auditorium and the large math center will require multiple terminal units to satisfy the peak load conditions. The space above the ceiling on each level will serve as a return air plenum to minimize the amount of ductwork and increase the energy efficiency of the building. As many of the walls will be going to the structure above, return air and transfer boots will be provided to transfer the air from the rooms to the common corridor plenum where the main return duct inlet is located. Ductwork will be galvanized steel and constructed in accordance with the latest edition of SMACNA. Rectangular supply and return ductwork will be lined with 2” fibrous glass duct liner. Spiral ductwork downstream of the terminal units will be wrapped with 2” mineral-fiber blanket duct insulation wrap. Outside air intake ductwork will be insulated with 3” mineral-fiber blanket duct insulation wrap. Exhaust ductwork will be provided with ½” fibrous glass duct liner for noise control. All duct systems will be low pressure, low velocity systems sized at a maximum pressure drop of 0.08”/100’ and a maximum velocity of 2,000 fpm. Air handling unit fan systems will have a maximum of 2” of external static pressure. An in-line exhaust fan located in penthouse will serve the stack of main restrooms and any other miscellaneous exhaust, such as janitors’ closets. The exhaust duct leaving this fan will be ducted to an exhaust louver on the west face of the penthouse. IDF rooms will be cooled via a ceiling mounted transfer fan with a door mounted inlet grille. Once final loads of the IDF rooms have been determined, if mechanical cooling is required, mini-split systems will be added to the IDF rooms to satisfy the cooling loads. These standalone systems will operate 24 hours a day so that the air handling units can be shut down or set back during unoccupied hours. Mechanical rooms will be served by hot water unit heaters. The mechanical penthouse will be served by two, four-pipe fan coil units. Stairways and entry vestibules will be served by hot water cabinet heaters. The building will be provided with a direct digital control system to serve as the building automation system (BAS). This system will be computer based and will be tied into the campus’ existing BAS to allow for remote monitoring. All mechanical and plumbing equipment will be monitored through the building automation system with the exception of small equipment such as unit heaters or elevator sump pumps. New graphics will be provided by the BAS contractor for this building. The basis of design for the BAS will be Alerton. Plumbing The building will be served by a 2” domestic cold water line, a 3” reclaimed water line, and a 8” fire line. These three lines will have risers in the grade level Heat Exchanger Room. The domestic and reclaimed water lines will have meters and backflow preventers and the fire line will have a double check backflow assembly located in this room. The domestic water and reclaimed water lines will have pressure reducing stations to reduce the water pressure to 80 psig. Redundant 120-gallon, cement-lined, tank-type domestic water heaters will be located in the Heat Exchanger Room. Steam will be supplied to the water heaters from the campus steam system. Basis of design for these water heaters will be Cemline. Domestic hot water will be generated and stored in the tank at 140°F. Prior to distribution to the building, a thermostatic mixing valve will mix the water

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temperature down to 120°F. A domestic hot water recirculation pump will be provided to circulate hot water throughout the facility at all occupied hours so that hot water is available at all plumbing fixtures. A water softener will be provided in the heat exchanger room and will be dedicated to serve only the water heaters and heating hot water fill. The reclaimed water service will provide non-potable water for flushing of toilets and urinals. A waste and vent system will be provided for all sanitary drainage located in the facility, such as toilets, urinals, sinks, lavatories, floor sinks, and floor drains. A 6” sanitary main will exit the building below grade to the south. Above grade sanitary waste and vent piping will be epoxy-coated, hubless, cast-iron soil pipe with four-band no-hub couplings and fittings. Below grade sanitary waste and vent piping will be PVC (solid core) with solvent weld fittings. A storm drain system will be provided to drain the roof of the building. This system will consist of roof drains and overflow drains. Roof drain leaders will be collected and routed below grade to 5’-0” outside the building for connection to the site storm drainage system. Overflow drain leaders will terminate with downspout nozzles at grade level and will spill onto a visible splash block. Above grade storm drainage piping will be epoxy-coated, hubless, cast-iron soil pipe with four-band, no-hub couplings and fittings. Below grade storm drainage piping will be PVC (solid core) with solvent weld fittings. Roof drain bodies and adjacent horizontal roof drain leaders will be heat traced and insulated with 1-1/2” mineral fiber insulation. All other roof drain piping will be insulated with 1” thick mineral-fiber preformed pipe insulation. Domestic cold water, domestic hot water, domestic recirculation, and reclaimed water piping will be Type L copper with wrought copper soldered or brazed joints and fittings. Domestic cold water return piping will be insulated with mineral-fiber preformed pipe insulation, 1” thick for piping 1-1/2” and smaller and 1-1/2” thick for piping larger than 1-1/2”. Domestic hot water and domestic hot water return piping will be insulated with 1” thick mineral-fiber preformed pipe insulation. Plumbing Fixtures will be by one of the following manufacturers: American Standard, Kohler, Delta, Elkay, Zurn, or approved equal. All fixtures will be per NAU standards and subsequent conversations with NAU facilities personnel:

 Water Closets: Wall hung, vitreous china, dual-flush siphon jet type, maximum of 1.3 gpf.

 Urinals: Wall hung, vitreous china with 0.125 gpf flush valve.

 Lavatories: Vitreous china with 0.5 gpm metering faucet.

 Sinks: Self-rimming stainless steel type with faucet with 1.0 gpm aerator.

 Showers: 1.5 gpm.

 Mop Sinks: Floor mounted, molded stone, 24”x24”.

 Drinking Fountains / Hydration Stations: Two-level wall mounted electric water cooler with push- bar front and rounded corners. Water bottle fill will be included with each drinking fountain.

A 50 gpm sump pump with an oil sensing device will be provided for the elevator pit per elevator code requirements. A 5 gpm sump pump will be provided in the new steam tunnel vestibule to rid the tunnel of any nuisance water. The pump discharge will be pumped into an adjacent storm manhole below grade.

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Fire Protection A performance based design will be provided for the fire sprinkler system of the building. The fire riser will enter the building in the grade level Heat Exchanger Room where the double check valve assembly will be located. The complete fire sprinkler system will be required to be designed in accordance with NFPA 13. Dry or pre-action fire sprinklers will be required at building entrance canopies/cantilevers. An air compressor located in the heat exchanger room will most likely be required for these applications. Flow and tamper switches will be integrated with the building fire alarm system. This system will be further coordinated with the contractor and the fire protection subcontractor as the design progresses. End of the Mechanical Narrative.

2333 W Northern Ave, #9 . Phoenix, Arizona 85021-9334 . Telephone 602.249.1320 . Facsimile 602.336.3276

NAU STUDENT AND ACADEMIC SERVICES BUILDING

ELECTRICAL SCHEMATIC DESIGN NARRATIVE The New Northern Arizona University campus Student and Academic Services Building will be an approximately 94,000 square foot academic building that will include an auditorium, mathematics computer lab, classrooms, faculty offices, restrooms, circulation, support facilities, and a mechanical penthouse. The electrical systems will be planned based on the “100-year Building” concept standard. Site and facility electrical system components will include the following:

 Electrical site utility distribution

 Site & exterior building lighting

 Building interior general lighting

 Building interior device and Heating Ventilation Air & Conditioning (HVAC) power

 Building fire alarm system

 Building interior special systems telecommunication and security systems

 Lightning protection system Based on the program building square footage, it is estimated that a 1,600 Amp, 277/480V-3 Phase, 4 Wire electrical service will provide adequate electrical power for the project. Estimated load consumption is 13 volt-amperes per square foot for all of the MPE systems. The site utility distribution will include interface with the existing campus 12,470V-3 Phase medium voltage system network. A utility pad mounted transformer will be set on grade to the south of Blome street, next to the existing switch cabinets just north of Sechrist Hall. A network loop medium voltage configuration will serve the utility transformer. The building electrical service will be located on the south end of the first floor, and will include any provisions necessary for the addition of a future photovoltaic system (estimated at 180kW) if directed by the NAU Project Manager or Director of Project Development and Construction Manager. Both 480V and 208V panel boards will be located within the facility to serve various branch circuit requirements. The Main Electrical Room will be configured to meet NAU’s utility service access requirements. The Service Entrance Section (SES), automatic-transfer switches, and related transformers and panelboards will be located within the Main Electrical Room. The first floor of the building will be served from panelboards in a separate first floor electrical room, and the subsequent floors will each have their own smaller Electrical Rooms with the necessary equipment for each floor’s load.

Provisions for a master utility meter will be provided as part of the service entrance section. Individual smart meters will be included at each panelboard to monitor all lighting, power, and HVAC power loads if directed by NAU Electrical Department. All connected electrical loads will be designed to meet appropriate ASHRAE guidelines. An internal Surge Protective SPD will be provided within the main distribution switchboard as well as all sub-distribution panelboards.

The existing garage to the east of the new academics building is supplied with emergency power from a dedicated generator system. An analysis of this existing generator shows that there is not enough additional capacity to serve both the garage and the new academics building. Per the NAU request to provide capacity to run the elevators on emergency power, a source for emergency power will have to be found. An analysis of the site shows that the best option is to remove the existing garage generator and replace it with a generator and distribution equipment with capacity to serve both buildings. The new generator will handle all of the existing parking garage loads in addition to the NEC 700 lighting loads, the security system, and the fire alarm system. Additionally per NAU request, the pumps for the heating hot water system and snow melt system will be on emergency power. A preliminary generator size of 300kW has been determined from analysis of the existing parking garage and the new SAS building loads. Automatic transfer switches and emergency distribution equipment for the SAS building will be located within main electrical room and associated electrical rooms on each floor.

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The site and building lighting design will include site access, pedestrian walkway illumination, and interior general area lighting. Any emergency egress illumination required by the IBC and NFPA will be supplied as part of the NEC 700 Emergency System and connected to the emergency generator. Egress illumination will exceed the code minimum requirement of a 1.0 foot candle average and a 0.1 foot candle minimum for all egress pathways, including the exterior area adjacent to exit doorways.

Interior lighting will be controlled via occupancy/vacancy sensors with override off manual switches. In

large areas or spaces, ceiling or wall mounted combination dual technology sensors (infrared/ultrasonic or

micro-phonic) will be used. In smaller spaces, combination dual technology sensor type

(infrared/ultrasonic or micro-phonic) switches will be used. Daylighting compensation photocells will be

used where daylighting is available. In addition, low voltage relay control panels will control all lighting

branch circuits. Each lighting low voltage control panel relays will be controlled via the BAS as

independent points with ON/OFF status feedback to the BAS included.

Generally, LED lamp sources will be used in order to reduce energy consumption to meet the LEED

requirements. Luminaires with fluorescent lamp sources will be considered for all exterior and interior

lighting design solutions where LED fixtures are not practical or cost effective.

The lighting system will include the following general scope of work:

 All exterior and interior lighting design solutions will be per the Illuminating Engineering Society of North America (IESNA) recommended practices.

 Offsite street lighting requirements will be reviewed with NAU personnel regarding any additional integration requirements.

 Facility security lighting.

 Lighting fixtures shall comply with the City of Flagstaff Lighting Code, which includes dark sky criteria.

An appropriate number of branch circuits will serve general receptacle outlets throughout the facility. A single 120V branch circuit will serve a maximum of (6) six duplex receptacles in accordance with the NAU standard. All offices and classrooms will be designed with receptacle spacing at 6’-0” center to center spacing per the NAU standard. Dedicated branch circuits will be designed to support specialized Owner equipment as required. HVAC system equipment connections will include the following general scope of work:

 HVAC power connections will be provided for Air Handler Units (AHU), Variable Air Volume Units (VAV), Exhaust Fans (EF), and Ceiling Fans (CF) systems.

 Certain pumps have been requested to be on emergency power per NAU to keep certain systems operational to prevent freezing in case of a power outage. Final determination has yet to be made.

The building fire alarm system will meet all applicable codes as well as the NAU Fire Marshal requirements and will include the following general scope of work:

 Fire Alarm Control Panel (FACP) with battery backup.

 Fully automatic initiation coverage of the facility.

 Manual double action pull stations located at all exits and stairways.

 Smoke and heat initiation detectors.

 HVAC interface modules controlled via local area smoke detectors.

 Fire sprinkler standpipe tamper and flow sensors.

 Voice evacuation speaker audio devices and visual indicating devices located throughout the facility.

 Elevator recall interface.

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The building telecommunications and security systems will include data, fire alarm, and security systems design. The intercom/paging system will be integrated with the fire alarm system per NAU request, and the telephone system will be provided over VOIP. The VOIP system will be located in the Main Equipment Room (MER) Room. The VOIP handset will be used as the intercom access point into the fire alarm system.

Data wireless hubs will be indicated for 100% interior building coverage. Data drops will also be provided

within classrooms, offices, and computer labs. Multiple data/VOIP racks within the MER Room will be

designed per Owner direction. The terminal outlet with activation plate, conduit and/or basket tray raceway

system, including category 6e cabling will be routed to the MER data rack. Termination at the rack will be

at a patch panel. All data switches, patch cords, and additional rack mounted distribution equipment shall

be provided and installed as part of the project. The following telecommunications system components will

be included in the general scope of work:

 Basket tray system.

 Raceways with (3) Cat 6 cables down to drop boxes with cover plate and device RJ45 termination.

 Wireless access panels with POE power source.

 Security control panel.

 Intrusion and access control system components.

 CCTV cameras and video archiving DVR’s.

Lightning protection system

 The design of a lightning protection system will be based on the LPRA recommendations with consideration given by the Owner regarding the usage of the facility.

End of the Electrical Narrative.

NAU Student and Academic Services Building: Project Program Report (April 21, 2014).

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06. LEED CERTIFICATION SUMMARY

To set sustainability goals and to track and document the design and construction, the Project Team is utilizing LEED green building rating system. The project is being designed to achieve “Silver” rating for LEED New Construction 2009. The required for certifications documentation will be complete by the Team. If the project is to proceed with official LEED certification, it would have to be initiated through LEED online no later than June 2015.

The LEED requirements and optimum sustainable design solutions are being reviewed and

incorporated as the project progresses. The sustainable strategies and technologies are greatly influenced by the building location and constrains of the site:

 The site is located in the heart of the Campus in close proximity to transportation, services and centralized building utilities. Steam line and reclaimed water line will be extended to the building, eliminating necessity to construct additional utilities on site. Reclaimed water use and low-flow plumbing fixtures will significantly reduce use of potable water for the new facility. Building envelope, mechanical and electrical systems are designed to reduce use of energy and minimize impact on the planet.

 Healthy, comfortable and productive environment will be created for the building users and visitors. Reduced frontage of the building and almost due west orientation will limit access to daylight and views for some building users. Currently several approaches are being considered for bringing the daylight into the building.

 To provide for future building modifications all of the building services and connections are located together along the east side in a spline; which will allow for flexible and easy changes without major systems remodeling.

Refer to the proposed scorecard; and the detailed review of LEED credits for the project (Appendix 4).