CMS Back on Campus Phase II 75 Percent CD Engineering Report 2 24 2022.pdf

CMS Phase 2 75% CD Submission

MEP

CMS Phase 2 –

75% CD Report

Mechanical, Electrical, Lighting Plumbing, Fire

Protection, Life Safety, Telecommunications, Security & Audio Visual

HVAC:

Design Criteria:

The heating, ventilation and air conditioning systems shall comply with the requirements of the P100 all other governing agencies. The HVAC

System will be designed to provide superior environmental conditions associated with office buildings.

Outdoor Design Conditions:

• Summer: 93.6F DB, 75F WB, 78F WB cooling tower design

• Winter: 12.3F DB

Indoor Design Conditions:

Initial operating/comfort conditions for each space are presented in the table below. This data is used to determine the necessary supply air to the spaces to maintain the prescribed design condition.

Interior Design Conditions

Spaces Summer Winter

Temp (°F)

RH (%)

Temp (°F)

RH (%)

Offices 74 50 72 0

Amenities/Lobby 74 50 72 0

Conference &

Lounge

74 50 72 0

MDF Rooms 70 N/A 70 N/A

IDF Rooms 70 N/A 70 N/A

Server Rooms 72 N/A 72 N/A

Mechanical

Spaces

80 N/A 65 N/A

Electrical

Spaces 80 N/A 65 N/A

Notes:

1) Summer temperature is maintained to set point plus or minus 2°F.

2) Summer relative humidity is anticipated to be a maximum of 50% based on traditional VAV air conditioning systems planned for the office, but the Office Tower will not be provided with humidity control sequences and/or humidification.

3) Winter temperature is maintained to set point plus or minus

3°F.

4) Winter Relative Humidity will track with outdoor humidity as humidification is not provided.

Ventilation Rates:

• ASHRAE 62.1 minimums plus 30% to comply with LEED Enhanced IAQ

Strategies credit

Load Densities:

Spaces

Equipment Lighting

W/ft

W/ft

Offices 3 1.0

Corridors 0.5 0.5

Storage areas 0.5 0.5

MDF Rooms 50 0.5

IDF Rooms 50 0.5

Server Rooms 250 0.5

Mechanical Rooms Actual load 0.5

Occupancy:

• Office Occupant Density: 1 Person/100 Square Feet

Acoustic Criteria:

• Open Office: RC-40N

• Private Office: RC-35N

• Conference Rooms: RC-30N

Building Envelope Construction (Minimum Performance Based on ASHRAE

90.1-2016, Climate Zone 4):

• Façade % Breakdown: 60% Glazing / 40% Opaque Insulated Façade

• SHGC = 0.36

• Overall U-Value Glazing = 0.5

• Overall U-Value of Wall / Spandrel = 0.15

Description of Systems:

Heating:

CLL, C1, C2 & SLL:

Hot water for heating is supplied by the existing central utility plant (CUP) hot water boilers. Hot water serves perimeter fan powered box reheat coils. No new heating provisions will be provided for the Central and South buildings.

CLL is also provided with hydronic fin tube radiators at the perimeter.

Cooling:

CLL, C1, C2 & SLL:

Cooling is supplied by the existing CUP centrifugal chillers (house system). Chilled water is distributed to the chilled water coils in each floor-by-floor air handling unit. The chilled water valves in each AHU modulate based on sensors tied to the building management system (BMS). No new cooling provisions will be provided for the Central and South buildings.

Outdoor Air System:

CLL, C1, C2 & SLL:

Fresh air for the South and Central buildings is provided by two

(2) existing dedicated outside air handling units (OAHU) each located on the building roof which supplies treated outside air to the floor-by-floor AHUs. The OAHUs are provided with hot water preheat coils with glycol to prevent freezing fed from a heat exchanger located in the mechanical room below the roof to temper the outside air before distributing the indoor recirculating

AHUs. The OAHUs are run on variable frequency drives and outside air is adjusted to maintain acceptable carbon dioxide

(CO2) levels based on sensors in the return air ducts. The existing

OA units are not equipped with energy recovery components. No new provisions for outside air will be provided for the South and

Central buildings.

Exhaust:

CLL, C1, C2 & SLL:

General building and toilet exhaust are provided by fans located on the roof. No new exhaust provisions will be provided for the

South and Central buildings.

Air Distribution:

CLL:

CLL is served by existing 22,000 CFM AHU-0.1. In the Central building, conditioned air is distributed by existing constant volume, recirculating air handling units (AHU) on each floor. Each mechanical room houses one (1) AHU and serves as a mixing box plenum for outside air and return air. The AHU chilled water coil valves modulate to maintain a set point water temperature via sensors that are tied to the DDC system. The system works in a supply duct and open plenum return configuration. Fan powered terminal boxes (FPB) are utilized for air distribution within the space. Cooling-only FPBs are used for interior open office and corridor spaces while FPBs furnished with hot water reheat coils are used for perimeter spaces, private offices and conference rooms.

On CLL existing interior FPBs are to be demolished to accommodate the new floor plan layout. New FPBs will be provided for interior open and private offices, print room, corridor spaces, and conference rooms. Existing to remain FPBs and associated ductwork and hot water piping will be rebalanced to serve the new space layout.

Diffusers will be replaced as required according to the ceiling layout. In general, linear diffusers will be used at the open office perimeter and square lay-in diffusers will be used in the 2’x2’ ATC ceiling in the interior open office, private offices and conference rooms.

Existing AHU-0.1 will be provided with URV-15 Ultraviolet Light

(UVC) Fixtures installed downstream of the cooling coil for disinfection of the airstream. Fixture will consist of two rows of UV lights with each row containing (10) lamps.

C1:

Central Building Main Lobby will have no HVAC scope.

C2:

In the Central building, conditioned air is distributed by existing constant volume, recirculating, air handling units on each floor.

C2 is served by existing 22,000 CFM AHU-2.2. Conditioned air is distributed by existing constant volume, recirculating air handling units (AHU) on each floor. Each mechanical room houses one (1)

AHU and serves as a mixing box plenum for outside air and return air. The AHU-2.2 chilled water coil valves modulate to maintain a set point water temperature via sensors that are tied to the DDC system. The system works in a supply duct and open plenum return configuration. Fan powered terminal boxes (FPB) are utilized for air distribution within the space. Cooling-only FPBs are used for interior open office and corridor spaces while FPBs furnished with hot water reheat coils are used for perimeter spaces, private offices and conference rooms.

On level C2 existing interior FPBs are to be demolished to accommodate the new floor plan layout. New FPBs will be provided for interior open and private offices, print room and corridor spaces. Existing to remain FPBs and associated ductwork and hot water piping will be rebalanced to serve the new space layout.

Diffusers will be replaced as required according to the ceiling layout. In general, linear diffusers will be used at the open office perimeter and square lay-in diffusers will be used in the 2’x2’ ATC ceiling in the interior open office, private offices and conference rooms.

New linear diffuser layout will be provided in to male and female toilet rooms.

Existing AHU-2.2 will be provided with URV-15 Ultraviolet Light

(UVC) Fixtures installed downstream of the cooling coil for disinfection of the airstream. Fixture will consist of two rows of UV lights with each row containing (10) lamps.

SLL:

In the South building, conditioned air is distributed by existing constant volume, recirculating, air handling units on each floor.

SLL is served by existing 22,000 CFM AHU-0.4. Conditioned air is distributed by existing constant volume, recirculating air handling units (AHU) on each floor. Each mechanical room houses one (1)

AHU and serves as a mixing box plenum for outside air and return air. The AHU-0.4 chilled water coil valves modulate to maintain a set point water temperature via sensors that are tied to the DDC system. The system works in a supply duct and open plenum return configuration. Fan powered terminal boxes (FPB) are utilized for air distribution within the space. Cooling-only FPBs are used for interior open office and corridor spaces while FPBs furnished with hot water reheat coils are used for perimeter spaces, private offices and conference rooms.

On level SLL existing interior FPBs are to be demolished to accommodate the new floor plan layout. New FPBs will be provided for interior open and private offices, print room and corridor spaces. Existing to remain FPBs and associated ductwork and hot water piping will be rebalanced to serve the new space layout.

Diffusers will be replaced as required according to the ceiling layout. In general, linear diffusers will be used at the open office perimeter and square lay-in diffusers will be used in the 2’x2’ ATC ceiling in the interior open office, private offices and conference rooms.

New linear diffuser layout will be provided in to male and female toilet rooms.

Existing AHU-0.4 will be provided with URV-15 Ultraviolet Light

(UVC) Fixtures installed downstream of the cooling coil for disinfection of the airstream. Fixture will consist of two rows of UV lights with each row containing (10) lamps.

Supplemental Cooling:

There are specialty spaces that have existing supplemental air conditioning; No new supplemental air conditioning provisions will be provided for the South and Central buildings.

Controls:

CLL, C1, C2 & SLL:

Controls for the South and Central buildings are provided by an existing Siemens 600 direct digital control system (DDC) which controls equipment start/stop, temperature control, carbon dioxide monitoring, damper modulation and static control.

The new fan powered boxes will be provided with new thermostats both of which will tie into the existing BMS. Densely occupied spaces according to LEED 2019 criteria, including conference rooms will be provided with carbon dioxide sensors which will tie into the existing BMS for outside air control.

ELECTRICAL:

Area 1 (Level C2):

The majority of the open office, closed offices, and conference rooms on this level will be demolished and replaced with new program largely matching the profile of the existing.

Power in this area is fed from two closets; C2-11-21 and C2-18-21 also known as closets CA2 and CB2. All electrical panelboards and other infrastructure within these closets are in very good condition and are intended to be reused to serve the newly renovated program on this level.

Closet CA2 contains one 208/120V receptacle panelboard and one

480/277V lighting/HVAC panelboard. Closet CB2 contains two 208/120V receptacle panelboards and two 480/277V lighting/HVAC panelboards.

All circuits feeding the demolition areas will be removed and replaced with new branch circuits feeding new devices and equipment. Each new branch circuit serving receptacles shall have dedicated neutral and ground conductors.

New floor boxes will be provided at each workstation within the area of work. Each floor box will contain two duplex receptacles, both fed from the new 250A 208/120V receptacle panel noted above.

Wall-mounted receptacles will be provided within corridors and along the office perimeter such that no point in the space is more than 25 feet from the nearest receptacle.

All emergency power on this level will be re-fed from existing panels

ERP-CB-2 and ELP-CB-2 in Closet C2-18-21 (AKA Closet CB2).

Area 2 (Level SLL):

The majority of the open office, closed offices, and conference rooms on this level will be demolished and replaced with new program largely matching the profile of the existing.

Power in this area is fed from closet SL-11-01. This closet contains two

208/120V receptacle panelboards and two 480/277V lighting/HVAC panelboards. All electrical panelboards and other infrastructure within these closets are in very good condition and are intended to be reused to serve the newly renovated program on this level.

All circuits feeding the demolition areas will be removed and replaced with new branch circuits feeding new devices and equipment. Each new branch circuit serving receptacles shall have dedicated neutral and ground conductors.

New floor boxes will be provided at each workstation within the area of work. Each floor box will contain two duplex receptacles, both fed from the new 250A 208/120V receptacle panel noted above.

Wall-mounted receptacles will be provided within corridors and along the office perimeter such that no point in the space is more than 25 feet from the nearest receptacle.

All emergency power on this level will be re-fed from existing panels

ERP-SB-LL and ELP-SB-LL in Closet SL-08-20.

Area 3 (Level CLL):

Power for the existing Union area is fed from Electrical Closet CL-05-21.

Existing lighting and 277V HVAC equipment is fed from panel LP-CC-1-

LL, and existing receptacle and 120V HVAC loads are fed from 2-section panel RP-CC-1-LL.

The existing panels are in very good condition and shall remain. Existing circuits serving devices and equipment to be demolished will be repurposed for new branch circuiting.

New duplex NEMA 5-20R receptacles shall be installed throughout the

Union space. Floor boxes will be added beneath tables in new conference rooms, and receptacles will be placed at 12-foot intervals around the perimeter of each room. Additional power will be added as required for point-of-use equipment such as wall-mounted TVs and audio/video equipment.

Emergency power for this area will be fed from existing panel ELP-CB-LL located in Closet B on this level.

Area 4 (Level C1):

Power for the existing Lobby area is fed from Electrical Closet C1-18-21.

Existing lighting and 277V HVAC equipment is fed from panel LP-CB1-1 and LP-CB2-1, and existing receptacle and 120V HVAC loads are fed from 2-section panel RP-CB1-1 and RP-CB2-1.

The existing panels are in very good condition and shall remain. Existing circuits serving devices and equipment to be demolished will be repurposed for new branch circuiting if rendered completely spare during demolition. New circuits will be pulled from existing spare circuits breakers as necessary to provide power to new security devices in the

Lobby.

New duplex NEMA 5-20R receptacles shall be installed as indicated in the Lobby space. Floor boxes will be added near security equipment that is not in proximity to a wall. Additional power will be added as required for point-of-use equipment such as security equipment.

Emergency power for this area will be fed from existing panel ELP-CB-1 located in Closet C1-18-21.

LIGHTING:

Areas 1, 2 and 3 (C2, CLL, S2):

New light fixtures in these areas to be added for each of the following spaces, quantities to be determined upon development of reflected ceiling plans:

Open Office: Layout will consist of pendant 2’x2’ fixtures. Open office will have local 0-10V dimming controls and occupancy sensors, with a time clock override deactivating the occupancy sensors during normal working hours.

a) Alternate Controls Scheme 1: Individual Controls

Open office will have 0-10V dimming controls, where occupants shall have individual control of light intensity for each fixture in the open office area, and occupancy sensors, with a time clock override deactivating the occupancy sensors during normal working hours.

b) Alternate Controls Scheme 2: Circadian Rhythm with

Individual Controls

Open office will have tunable white light with dimming controls and occupancy sensors, with a time clock override deactivating the occupancy sensors during normal working hours. Light color temperature shall change automatically by time of day. Occupants shall have individual control of light intensity for each fixture in the open office area. Alternatively, occupants can have individual control of light intensity for each grouping of fixtures in the open office area.

Private Offices: Layout will consist of pendant 2’x2’ fixtures.

Private offices will have local 0-10V dimming controls and vacancy sensors.

a) Alternate Controls Scheme: Circadian Rhythm with

Individual Controls

Private offices will have tunable white light with dimming control and vacancy sensor. Light color temperature shall change automatically by time of day.

Occupants shall have individual control of light intensity for each fixture in the private office.

Meeting Rooms: Layout will consist of recessed downlights and pendant linear fixtures. Meeting rooms will have local 0-10V dimming controls and vacancy sensors.

Circulation/Public Spaces: Layout will consist of recessed downlights and perimeter wall wash slots. Circulation and public spaces will have local 0-10V dimming controls and occupancy sensors.

Any light fixtures in daylight zones that require daylight on/off controls by code shall have photocell sensors. The daylight zone, as defined by code, shall extend laterally to the nearest full-height wall, or up to 1.0 times the height from the floor to the top of the fenestration, and longitudinally from the edge of the fenestration to the nearest full-height wall, or up to 2 feet whichever is less. Lights in sidelit zones facing different cardinal orientations [within 45 degrees (0.79 rad) of due north, east, south, west] shall be controlled independently of each other.

Area 4 (C1 Lobby):

New light fixtures in this area to be determined upon development of reflected ceiling plans. Lighting shall have various zones of control.

Separate zones to be considered are: Lobby Desk; Lobby Walls;

Circulation space; Security screening areas; Lobby waiting areas.

A programmable lighting scene controller shall be provided as well as automatic daylighting controls and timeclock control. Fixtures shall have

0-10V dimming capability.

Any light fixtures in daylight zones that require daylight on/off controls by code shall have photocell sensors. The daylight zone shall extend laterally to the nearest full-height wall, or up to 1.0 times the height from the floor to the top of the fenestration, and longitudinally from the edge of the fenestration to the nearest full-height wall, or up to 2 feet whichever is less. Lights in sidelit zones facing different cardinal orientations [within 45 degrees (0.79 rad) of due north, east, south, west] shall be controlled independently of each other.

FIRE ALARM:

New fire alarm devices will be provided throughout the area of work as follows:

- New ceiling mounted smoke detectors covering up to 900 square feet each in open offices and conference rooms.

- New wall mounted speaker/strobes mounted at 50-foot intervals along the open office and corridor perimeter.

- New wall mounted strobes located in each conference room, restroom, utility room, and in all closed offices without a window into the open office.

In Area 1, all new devices shall be connected back to existing Central

Building 2 nd floor fire alarm terminal cabinet.

In Area 2, all new devices shall be connected back to existing DGP in the

South Building Lower Level.

In Area 3, all new devices shall be connected back to existing DGP serving Central Building Lower Level.

In Area 4, all new devices shall be connected back to existing main FACP

PLUMBING:

Description of Systems:

General:

PANTRIES:

RM# CLL-02-552 & SLL-117, CLL-02-165: Provide ½” filtered cold water with shut-off valve, vacuum breaker, and dual check valve for coffee maker connection. Provide 2” funnel drain with automatic trap primer and air gap for future coffee equipment drain. Cold water will be supplied by a connection from the existing core toilet space. New pantry sink, all pantry appliances, and a new ceiling mounted 10-gallon water heater will be required for this space. Hot water to the new pantry area will be supplied by a new ceiling mounted, electric, 10-gallon water heater with leak detection.

New sanitary and vent lines from the new pantry sink and drinking fountains will tie into the existing stacks in the core bathrooms. Sanitary piping shall be run at the ceiling of the floor below at a minimum pitch of

1/8” per foot. An alternate price shall be provided for an ejector pump for the pantry sink in the event the sanitary routing is not achievable at the ceiling of the floor below.

CORE TOILETS

RM# CLL-02-96, CLL-02-95 , SL-145, SL-144: Provide new fixture replacement in accordance with architectural updates to this space.

Plumbing fixtures in the core bathrooms will be removed and replaced in their existing locations with new in kind type. All fixtures will comply with the required capacity for the water distribution system design criteria of the Baltimore Building Code and all other governing agencies. Fixtures and trim will be specified by the Architect.

FIRE PROTECTION:

Description of Systems: Work scope will be provided in concert with the proposed architectural ceiling upgrades within CLL and SLL :

The existing sprinkler heads, branch piping, and portions of sprinkler main in the area of work will be relocated as needed to maintain Code coverage. Installation of new sprinkler heads, branch piping, and portions of sprinkler main will be installed to accommodate new architectural design. All existing heads in areas not in contract shall remain as-is.

LIFE SAFETY:

The following information summarizes the fire and life safety code compliance approach for the

CMS Phase 2 Project (Building/Project).

The Project involves the renovation of four separate areas in the existing facility. The renovated areas are comprised of office spaces, conference rooms, lobby areas, circulation, and building support spaces.

The Building is currently protected throughout with automatic water-based fire protection systems and a fire alarm system.

Codes & Standards:

The following adopted codes and associated standards are applicable to the Project:

• P100 Facilities Standards for the Public Buildings Service, July 2018 Edition (P100)

• International Building Code, 2018 edition (IBC)

• International Fire Code, 2018 edition (IFC)

• NFPA 13, Standard for the Installation of Sprinkler Systems, 2019 edition

• NFPA 70, National Electrical Code, 2020 edition

• NFPA 72, National Fire Alarm and Signaling Code, 2019 edition

• NFPA 101, Life Safety Code, 2018 edition (LSC)

Scope of Renovation:

The project consists of four areas on the CMS HQ Campus. Those areas are referenced as Area 1 through Area 4. Areas 1 through 3 function as office spaces and will be renovated similarly to the CMS Phase 1 Project office spaces. Renovations will include floor, wall and ceiling finishes, lighting, MEP, fire protection, telecom, and AV systems.

Area 1 and Area 2 include the renovation of public restrooms. Area 4 is the Main Lobby, located in the Central Building on Level 1. Work in Area 4 will be based around a concept developed through a lobby study. Work will consist of casework, floor patching, electrical, telecom and tss relocations.

• Area 1: Central Building Level 2 OHC & CCSQ, Rest. Renovation – Approximately

22,269 sf

• Area 2: South Building Lower Level CMS OSFLO Renovation – Approximately

14,403 sf

• Area 3: Central Building Lower Level Union Space Renovation – Approximately

2,108 sf

• Area 4: Central Building Level 1 Main Lobby Renovation – Approximately 3,138 sf

Occupancy Classifications:

The Building is classified as nonseparated mixed-use, in accordance with LSC §6.1.14.3 and IBC §508.3. Table 1, Occupancy Classifications, identifies the primary occupancies encompassing the Building.

Table 1: Occupancy Classifications

Occupancy Description LSC IBC

Business | Group B Offices §6.1.11 §304

Assembly | Group A-3 Conference, Collaboration Rooms §6.1.2 §303.4

Industrial | Group S-2 Mechanical and Electrical Rooms §6.1.12 §311.3

Storage | Group S-2 Storage Rooms §6.1.13 §311.3

The primary occupancy is Group B, with Group A-3 and S-2 as accessory occupancies, in accordance with the IBC.

Construction:

Existing Construction Type:

The facility was originally built under the 1990 Building Officials & Code

Administrators National Building Code (BOCA). There are three buildings, the

Central Building, North Building, and South Building. The renovation will be in the Central Building and the South Building.

The Central Building has the following characteristics:

Table 2: Central Building Existing Conditions

Description Existing Conditions

(BOCA)

Height (Above Grade) Greater than 75ft

Stories (Above Grade) 5

Area per Story 65,000

Occupancy Use Mixed Occupancy:

Groups E, B, A-3, S-1

Type of Construction Type 1B with Type 2A modifications

The South Building has the following characteristics:

Table 3: South Building Existing Conditions

Description Existing Conditions

(BOCA)

Height (Above Grade) Less than 75ft

Stories (Above Grade) 3

Area per Story 69,360

Occupancy Use Group B

Type of Construction Type 2A

The current total building height and area have not changed from the original construction. If the IBC limitations are not met for the new construction, it is not practical to address as part of this project. The height and area of the building will remain as previously accepted under the 1990 BOCA Code.

Interior Separation:

P100 refers to the LSC regarding rated separation of incidental spaces and rooms. New specific spaces and rooms shall be separated from the remainder of the building with fire-resistance rated fire barriers and smoke partitions, in accordance with Table 4, Interior Separation of Specific Spaces and Rooms, on the following page. The interior exit enclosure and shaft fire-resistance ratings are existing and will not be modified.

Table 4: Interior Separation for Specific Spaces and Rooms

Room or Space FR Separation Reference

Greater Hazard (Storage, Boiler Rooms)

-- SP LSC §8.7.1.2

Maintenance Shops 1-hour FB LSC §12.3.2.1.2(2)(b)

High Hazard Content Areas

(LSC §6.2.2.4)

1-hour FB LSC §38.3.2.2

Electrical (Transformer > 112½ kV) 1-hour FB NFPA 70 Article 450.21(B) FB – Fire Barrier | SP – Smoke Partition

The means of separation referenced in Table 4, above, are defined below, and where requiring a fire-resistance rating, the fire resistance shall be determined in accordance with ASTM E 119, Standard Test Methods for Fire Tests of Building Construction and

Materials, or ANSI/UL 263, Standard for Fire Tests of Building Construction and

Materials, in accordance with LSC §8.2.3.

• Fire Barrier: A fire-resistance rated barrier that shall be constructed in accordance with LSC §8.3. The barrier shall be continuous from outside wall to outside wall or from one fire barrier to another, or a combination thereof. The barrier shall maintain continuity from floor to floor/roof deck above, including through concealed spaces.

A fire barrier may terminate at the bottom of an interstitial space where the construction assembly forming the bottom of the interstitial space has a fire-resistance rating equal to or greater than the that of the fire barrier.

• Smoke Partition: A smoke resistant partition that shall be constructed in accordance with LSC §8.4. The partition shall maintain continuity from floor to floor/roof deck above, including through concealed spaces, or to a ceiling system that forms a continuous membrane where a smoke-tight joint is provided between the partition and the bottom of the ceiling and the space above the ceiling is not used as a plenum.

Penetrations through rated assemblies with UL Listed through-penetration firestop systems or firestopping materials, in accordance with the respective sections of the LSC and CSG §6.8.B. Firestop material shall be red and shall not be painted.

Opening Protection:

Doors and/or other openings in enclosures and separations require protection in accordance with the following:

• Smoke Partition: Doors shall be self-closing or automatic-closing, upon detection of smoke, positive latching, and shall have no louvers. In addition, doors shall comply with the smoke and draft control requirements defined in UL 1784 and shall be installed in accordance with NFPA 105. All necessary air transfer openings shall be protected with smoke dampers having a Class I or II leakage rating and rated for no less than 250°F. (LSC §8.4 | NFPA 90A §5.4.3)

• 1-hour Fire Barrier: Doors shall be self-closing or automatic-closing, upon detection of smoke, positive latching, minimum 45-minute fire-resistance rating, and shall have no louvers. Ducts and air transfer openings shall be protected with minimum

90-minute fire-resistance rated fire dampers. (LSC §8.3 | NFPA 90A §5.4.1.1)

• 2-hour Fire Barrier: Doors shall be self-closing or automatic-closing, upon detection of smoke, positive latching, minimum 90-minute fire-resistance rating, and shall have no louvers. Ducts and air transfer openings shall be protected with minimum

90-minute fire-resistance rated fire dampers, unless the fire barrier encloses a shaft, then the duct or air transfer opening shall be protected with fire/smoke damper having a Class I or II leakage rating and rated for no less than 250°F. (LSC §8.3 |

NFPA 90A §§ 5.4.1.1 and 5.4.3).

Interior Finish:

Interior wall and ceiling finishes shall be classified for fire performance and smoke development, in accordance with ASTM E84 or UL 723, and grouped into the classes defined in Table 5, Interior Finish Classifications:

Table 5: Interior Finish Classifications

Flame Spread Index Smoke-Developed Index Class

0-25 0-450 A

26-75 0-450 B

76-200 0-450 C

LSC §10.2.3.3

Interior wall and ceiling finishes for specific rooms, spaces, and means of egress are limited to the classifications defined in Table 6, Component Interior Finish

Classifications, in accordance with the IBC.

Table 6: Component Interior Finish Classifications

Building Area Class

Exit Enclosures B

Exit Access Corridors B

Other Spaces C

Interior floor finishes and covering materials shall comply with DOC FF-1 “Pill Test”, in accordance with IBC Section 804. Adhesives and other materials used for the installation of carpets must be limited to those having a flash point of 60° C (140° F) or higher, in accordance with the P100. Wood used in construction that is required to be fire retardant must be treated with fire retardant chemicals by a pressure impregnation process or other method that treats the materials throughout (as opposed to surface treatment), in accordance with P100.

Means of Egress:

General:

Means of egress shall be maintained to provide headroom (ceiling) with a minimum height of 90 in. above the walking surface with projections from the ceiling no less than 80 inches above the walking surface, in accordance with

LSC §7.1.5.1.

Walking surfaces in the means of egress shall be nominally level, having a slope no greater than 1 in 20, and shall have a slip-resistant surface, in accordance with LSC §7.1.6. In addition, if the change in elevation is greater than 12 in. a ramp or stair shall be used, in accordance with LSC §7.1.7. Guards shall be installed along open sides of means of egress that exceed 30 in. above the floor or ground below, in accordance with LSC §7.1.8.

Egress Capacity:

Means of egress components are existing. Floor plans will be developed to ensure the egress capacity is sufficient to accommodate the occupant load for the building, floor, room, or space served.

Table 7: Egress Capacity Factors

Component Factor

(in./occupant)

Stairways 0.3

Other Egress Components 0.2

Occupant Load:

The occupant loads for the rooms and spaces are determined using the occupant load factors defined in Table 8, Occupant Load Factors, on the following page, in accordance with LSC Table 7.3.1.2.

Table 8: Occupant Load Factors

Occupancy or Use Factor

(ft2/occupant)

Assembly – Fixed Seats No. of Seats

Assembly – Concentrated 7 net

Assembly - Unconcentrated 15 net

Business – Unconcentrated (Circulation) 150 gross

Business – Concentrated 50 gross

Collaboration Room/Space < 450 ft2 30 gross

Collaboration Room/Space > 450 ft2 15 gross

Mechanical, Electrical, other Building Equipment Space 500 gross

Storage 500 gross

Number of Means of Egress and Separation:

Means of egress serving a renovated area shall have a minimum number of exits or access to exits dependent on the occupant load served, in accordance with

Table 9, Minimum Number of Exits or Access to Exits.

Table 9: Minimum Number of Exits or Access to Exits

Occupant Load (per Story)

Minimum # of Exits (per Story)

1-500 2

501-1,000 3

Greater than 1,000 4

LSC §7.4.1

A minimum of two means of egress shall be accessible from every room or space where either the minimum required occupant load or common path of travel is exceeded, dependent on the occupancy or use, in accordance with

Table 10, Spaces or Rooms Permitted to have One Exit or Exit Access Doorway, on the following page.

Table 10: Spaces or Rooms Permitted to have One Exit or Exit Access Doorway

Occupancy or Use Max. Occupant

Load/Area Max. Common Path of Travel

Business1 50 100 ft

Storage and Industrial2 500 100 ft

Assembly3 50 75 ft 1 LSC §§ 38.2.4 and 38.2.5

2 LSC §40.2.5

3 LSC§12.2.5.1.2

Where more than one exit, exit accesses, or exit discharges are required, they shall be arranged and separated to minimize the possibility of having more than one blocked by one fire or other emergency condition. Therefore, according to

LSC §7.5.1.3.3, the exits, exit accesses, or exit discharges shall be separated a minimum distance, equal to one-third the overall maximum diagonal dimension of the building or space, measured in a straight line to the nearest edge of each means of egress component.

Travel, Common Path, Dead-End Distances:

Means of egress shall be arranged to provide exit access travel distances no greater than the distances defined in Table 11, Maximum Exit Access Travel

Distances, in accordance with LSC §§ 12.2.6, 38.2.6.3, 40.2.6 and 42.2.6 regarding travel distances and LSC §§ 12.2.5, 38.2.5, 40.2.5, and 42.2.5 regarding dead-end corridors and common paths of travel.

Table 2: Maximum Exit Access Travel Distances

Occupancy or Use Travel

Distance Dead-End Corridor

Common Path

Business 300 ft 50 ft 100 ft

Industrial 400 ft 50 ft 100 ft

Storage 400 ft 100 ft 100 ft

Assembly 250 ft 20 ft 20 ft1/75 ft 1 Common path of travel for occupant load exceeding 50.

Exit Discharge:

Exit discharge is an existing condition to the building and will not be modified.

Doors:

Existing to remain doors will not be modified. New doors in the renovated areas will follow the below requirements.

Doors shall have a width no less than 32 inches or no less than the minimum egress width required to accommodate the occupant load served, calculated using the applicable egress capacity factor, whichever is greater, in accordance with LSC §7.2.1.2.3. The minimum door height shall be no less than 80 inches above the walking surface in accordance with LSC §7.1.5.1.

Egress doors shall be pivoted or side-hinged swinging type and shall swing in the direction of egress travel where serving an exit enclosure or an occupant load exceeding 49 occupants, in accordance with LSC §7.2.1.4. Side-hinged swinging doors shall not be obstructed greater than one-half of the required width of a corridor, aisle, passageway, or landing, unless a fully opened door does not project more than 7 inches into the means of egress.

Electrically locked and controlled egress doors are permitted where provided with access from the direction of egress travel by means of a manual releasing mechanism, an automatic sensor-release, or automatic release upon activation of the Building’s fire alarm system in accordance with LSC §§ 7.2.1.5 and

7.2.1.6. A maximum of two delayed egress devices that can be in a path of egress with a maximum delay time of 30 seconds.

Stairs:

Stairs are existing to the building and will not be modified.

Corridors:

Existing to remain corridors will not be modified. New corridors in the renovated areas will follow the below requirements.

Exit access corridors serving an occupant load less than 50 occupants shall have a minimum width of 36 inches, and where serving an occupant load equal to or greater than 50 occupants the minimum width shall be 44 inches, unless the calculated egress capacity is greater, in accordance with LSC §§ 7.3.4.1(2) and 38.2.3.2.

Means of Egress and Emergency Lighting:

The means of egress shall be equipped with artificial lighting facilities to provide a continuous light intensity at the floor of 10 ft-candle, for stairs, and 1 ft-candle, for all other components, during conditions that require the exits be available, in accordance with LSC §§ 7.8.1.3(1) and 7.8.1.3(2). A minimum of 0.2 ft-candle intensity shall be maintained for all floor surfaces if a single light were to fail, in accordance with LSC §7.8.1.4.

In the event of power supply failure, emergency electrical system shall automatically illuminate all the following areas, in accordance with LSC §7.9.

• Corridors, interior exit stairs, ramps, aisles, exit passageways, and exit discharge.

• Access-controlled egress doors.

• Doors equipped with delayed-egress locks.

• Electrical equipment rooms.

• Public restrooms with an area greater than 300 ft2.

The emergency power system shall provide power for a duration of not less than

90 minutes and shall consist of storage batteries, unit equipment, or an on-site generator, in accordance with LSC §7.9.2.1.

Emergency lighting facilities shall be arranged to provide initial illumination that is at least an average of 1 ft-candle (11 lux) and a minimum 0.1 ft-candle (1 lux) measured at floor level along the path of egress. Illumination levels shall be permitted to decline to 0.6 ft-candle (6 lux) average and a minimum 0.06 ft-candle (0.6 lux) at the end of the emergency lighting time duration. A maximum-to-minimum illumination uniformity ratio of 40 to 1 shall not be exceeded, in accordance with LSC §7.9.2.1.

Exit Signs:

LSC §7.10 requires all rooms and spaces requiring more than one exit or exit access, the means of egress to be indicated with approved exit signs reading

“EXIT”. Access to exits shall be marked by readily visible exit signs in cases where the exit or the path of egress travel is not immediately visible to the occupants. Exit sign placement shall be such that no point along the path of egress is more than 100 feet from the nearest visible exit sign.

Exit signs shall be illuminated by a source providing not less than 5 ft-candles at the illuminated surface (LSC §7.10.6.3). Exit signs shall be connected to emergency power or local batteries to assure continued illumination for at least

90 minutes in conditions of primary power loss (LSC §7.10.4).

Fire Alarm and Fire Protection Systems:

Please refer to the Electrical and Plumbing Sections of the report for details on these systems.

TELECOMMUNICATIONS:

General:

CLL, C1, C2 & SLL:

Structured cabling system and associated technology spaces within area of scope will be updated per requirements described below. Existing pathways, active network equipment, and fiber optic backbone cabling will be utilized to support new space.

IDF Rooms:

CLL, C1, C2 & SLL:

A total of four existing Telecom Rooms will be utilized to support the renovated space. These rooms will serve as consolidation and termination points for all local (to the room) station cabling and will house all active local area network hardware required to provide IP connectivity to devices connected to the information outlets within area being served by the room. Cable management, patching and cross connecting functions will be performed in this room. Grounding and power will be provided within the room. The space will have dedicated air conditioning. Each room will utilize a combination of existing and new equipment racks and vertical cable management; new vertical cable management and racks to match type and finish of existing equipment within associated room. New equipment installed within open frame equipment racks will require at least 3-foot front and rear clearances.

Existing cable trays and conduit sleeves will be utilized for new cable routing; additional sleeves and cable supports might be required based on existing conditions. All new and existing penetrations will require fire proofing. All inactive equipment and cabling within Telecom Rooms to be identified and removed. All removal work to be verified and approved by owner. All Telecom Rooms will require equipment surface, top of floor, and underfloor post construction cleaning. All Telecom Rooms must remain a dust free environment during construction.

Backbone Cabling:

CLL, C1, C2 & SLL:

Existing backbone riser cabling originating from North Building’s NetCom will be utilized to support renovated space. All existing active backbone cabling to be identified and protected during construction.

Horizontal Cabling:

CLL, C1, C2 & SLL:

Horizontal cabling will run from the local Telecom Room to the work area and will be terminated at an information outlet in accordance with the type of media being installed, performance standard and equipment being connected. The quantity of cabling and configuration of the information outlet will depend on the work area. Information outlets will be configured based on the work area served or system supported with a quantity of 4-pair, category 6 rated unshielded twisted pair cabling;

category 6A cabling will be used for outlets dedicated to wireless access point devices.

Cross-Connecting and Patching:

CLL, C1, C2 & SLL:

Horizontal cable terminations to equipment connections shall be made using 4 pair, 24 AWG, twisted pair copper patch cords rated category 6;

category 6A patch cords will be used for all connections associated with wireless access point devices. Patch cords shall have male 8 pin modular connectors on both ends. Each patch cord shall be provided with a unique identifier. All backbone to equipment data connections shall be made using duplex, multimode OM4 fiber optic patch cords.

Patch cords shall have male LC type connectors on both ends.

Cable Pathways:

CLL, C1, C2 & SLL:

Existing underfloor and overhead cable tray systems will be utilized to support renovated space. Additional cable supports, conduits, and sleeves might be required based on existing conditions

Telecommunications Bonding and Grounding:

A separate system will provide bonding and grounding of all conduits, cable tray, ladder rack and equipment racks within the Structured

Cabling System. The Telecommunications Bonding and Grounding

System will include grounding bars in each of the new Telecom Rooms.

Power Distribution:

CLL, C1, C2 & SLL:

Existing centralized UPS powered receptacles will be used to support all active equipment within Telecommunication spaces.

SECURITY:

Description of Systems:

C1:

Security systems are existing on site. This project will be an extension of the existing systems. All security devices infrastructure (back boxes and conduit stub ups), and wiring will be provided by the project. At the Main

Lobby security will consist of access control card readers on pedestals adjacent to interior glass divider walls, and video surveillance of the lobby and security x-ray and magnetometer lanes.

All new access control and video surveillance devices, provided and installed by the project, shall be connected to the existing building system. The existing systems on site are Lenel OnGuard for Access

Control and Ocularis for Video Management.

CLL, C2 & SLL:

Security systems are existing on site. This project will be an extension of the existing systems. All security devices infrastructure (back boxes and conduit stub ups), and wiring will be provided by the project. Access control card readers with door position switches shall be provided at each tenant suite entrance door and IDF Rooms. Video surveillance and duress buttons shall be provided as designated on the security drawings.

All new access control and video surveillance devices, provided and installed by the project, shall be connected to the existing building system. The existing systems on site are Lenel OnGuard for Access

Control and Ocularis for Video Management.

Audio Visual:

CLL, C2 & SLL:

Within the open office areas expand the existing paging system and combined speakers with new sound masking/white noise system. Within the enclosed offices and conference rooms expand the existing paging system. Provide amplifiers and controllers as required to support the system.

Conference rooms on this level shall be provided with Audio/Visual backboxes and raceway infrastructure that supports the following functions:

• Audio Playback

• Video Playback

• Teleconferencing

• Video conferencing

• Collaboration

• Room Scheduling

Basis of design for the Audio/Visual systems shall consist of the Cisco

Collaboration systems: Cisco Webex Board 85, Cisco Room Kit Plus, Cisco Touch 10, Cisco Webex Share, and a Room Scheduler Panel. The contractor shall provide pathway and backboxes to support the owner provided Audio/Visual equipment.

Appendix A

Light Level Calculations

Open Office

MCF

Private Office

Focus Room

Corridor

Restroom

Collaboration

Appendix B

Lighting Load Calculations