Building Statistics Part II

Lighting

Overall, the North Instructional Building’s (NIB) lighting system uses primarily fluorescent sources both linear fluorescents and compact fluorescents (CFLs) in its design.  A few metal halide sources have also been used in lighting the large vaulted ceiling of the Library. Linear fluorescent pendants are typical in every classroom on the ground floor.  These fixtures are integrated into the main building automation system (BAS) which controls the lighting with a time clock and occupancy sensor.  A lighting controls box is also placed in each room for manual control over designed lighting zones.  All other ground floor spaces, including the monumental stair, are illuminated using mixture of decorative pendants/ceiling mounted fixtures, downlights, and wall sconces with CFL light sources.  The double story library begins on the second level. It is illuminated with 1500W metal halide fixtures mounted to the walls and adjusted to wash the vaulted ceiling from each side.  Additional task lighting is incorporated using CFL table lamps built into the large study tables and carrels in the reading area.  The library stacks, located on the 3rd floor, utilize linear fluorescent fixtures mounted onto each individual stack. Power is provided to the stacks by floor receptacles.  A shading system is provided for the large windows on the 3rd floor of the library. A Lutron Graphic Eye controls panel is located behind the circulation desk.  This panel contains (1) shade control keypad and (5) toggle switches for the lighting. The toggle switches control zones as follows:

Switch 1 – All Library Lights

Switch 2 – 2nd Floor Library Lights Only

Switch 3 – 3rd Floor Library Lights Only

Switch 4 – 2nd Floor Carrel Lights

Switch 5 – 2nd Floor Table Lights

The library’s law collection is located in a separate multi-purpose classroom on the 3rd floor.  This space is lit using a lay-light with linear fluorescents housed above, CFL downlights, and linear fluorescent pendants.

Electrical

NIB receives 4.16KV double ended electrical service from a campus substation.  The service enters into the main switchboard located the basement mechanical room where the 4.16KV service is turned down to 480Y/277V to supply the building. The 3000A rated main switchboard serves (4) mechanical chiller pumps, (2) distribution panelboards, an emergency distribution panelboard (EDP), a fire alarm system, a sprinkler system, a branch circuit panelboard to power the basement and another to power the roof mechanical room.  The two normal distribution panel boards are designed so that one serves the east wing and the other the west wing of the building. Each distribution panelboard supplies power to lighting panelboards and receptacle panelboards located in electrical closets on each level.  All lighting loads receive 277V power. Located at each lighting panelboard is a step-down transformer to supply the receptacle panelboards at 120V.

A 250KW, 3 phase, 4 wire, diesel generator provides emergency power to the EDP, fire alarm system, and sprinkler system which are each connected to the emergency generator with their own automatic transfer switches (ATS). The EDP provides power to elevators and emergency lighting, receptacle, mechanical, telecom, and security loads.

Mechanical

Conditioned air is provided to NIB by (7) air handling units (AHU) located in the roof mechanical room. Six out of the seven total AHU’s are variable air volume (VAV) units with only one control volume unit (CV) servicing the ground floor corridor.  Each VAV unit has a dedicated service area.  The ground and second floor AHU’s service either the east or west wing of that floor individually.  The largest AHU (20,000 cfm) delivers air to the entire 3rd Floor.  The mechanical system is also integrated into the BAS system and also communicates with occupancy sensors.

Structural

The foundation is made up by a 5” slab on grade (SOG) with concrete footings ranging from 4’x4’ to 6’x6’ to a depth of 20” and 28” respectively. The superstructure is formed of steel framing integrated into the architecture.  The largest spans are supported with W27x114 steel girders on the upper mechanical floor. Lightweight concrete on metal deck provides the general floor structure.

Fire Protection

An active fire protection system utilizes an alarm system and sprinkler system on an ATS and integrated into the BAS system.  A 10gpm jockey maintains the minimum pressure in the sprinkler system and a 500gpm booster pump covering any drops in pressure.  All work conforms to NFPA-13/89.

Transportation

NIB contains one passenger elevator and one freight elevator located adjacent to the monumental stair.  The elevators provide access from the ground floor through the 3rd Floor.

Telecommunications

The building is equipped with an integrated security management system consisting of Access Control and Alarm Monitoring System (ACAMS), Closed Circuit Television (CCTV) System, emergency phone system, and a Uninterruptable Power System to support security systems.