VOLUME II SPECIFICATIONS SECTION.pdf

PROJECT TITLE: American Recovery and Reinvestment Act (ARRA) Design Build Air Handler Unit (AHU) / Photovoltaic (PV) Roof / Vegetative Roof Project at the Byrne Courthouse and Green Federal Building in Philadelphia, PA

PROJECT NUMBER: n/a

SOLICITATION NUMBER: GS-03P-10-AZC-0004

VOLUME: II OF III

Specification Sections

PROPOSAL CLOSING DATE December 30, 2009

TIME 4:00 PM LOCAL PHILA TIME

SUBMIT PROPOSALS TO: GENERAL SERVICES ADMINISTRATION

PUBLIC BUILDINGS SERVICE

MID-ATLANTIC REGION

GSA CONTRACT OPERATIONS

BRANCH(3PQ)

20 N. 8TH STREET

PHILADELPHIA, PA 19107-3191

SENSITIVE BUT UNCLASSIFIED (SBU)

PROPERTY OF THE UNITED STATES GOVERNMENT

COPYING, DISSEMINATION, OR DISTRIBUTION OF THESE DRAWINGS,

PLANS,

OR SPECIFICATIONS TO UNAUTHORIZED USERS IS PROHIBITED

Do not remove this notice

Properly destroy documents when no longer needed

GS-03P-10-AZC-0004

Table of Contents

Property of the United States Government – For Official Use Only. Do not remove this notice. Properly destroy documents when no longer needed.

VOLUME II – TABLE OF CONTENTS

RFP Design Build Scope of Work

3.1 Air Handler Unit Scope of Work 10

3.1A Exhibit A – AHU Sketch 1

3.1.B Exhibit B – Typical AHU Design 1

3.2.1 Photovoltaic System Scope of Work 2

3.2.2 Technical Scope for Roof Mounted Photovoltaic System 13

3.2.A Exhibit – Roof Plan 1

3.2.B Exhibit – Potential Solar Locations 1

3.2. C Exhibit – Section 07561 Bio Based Fluid Applied Waterproofing 10

3.2.D Exhibit – Roof Bracket Mount Sample 2

3.2.E Exhibit – Fire Safety Guidelines for PV System Installations 8

07561 Bio-based Fluid Applied Waterproofing 10

3.3 Vegetative Roof Scope of Work 5

3.3.A Exhibit – Existing Conditions and Selective Removal Plan 1

3.3.B Exhibit – Conceptual Green Roof Layout 1

02930 Vegetative Roof Covering 9

07555 Modified Bituminous Protected Membrane Roofing 12

Division 1 Specifications Pages

01100 Summary of Work 4

01140 Work Restrictions 3

01210 Allowances 3

01270 Unit Prices 2

01310 Project Management and Coordination 10

Table of Contents

Property of the United States Government – For Official Use Only. Do not remove this notice. Properly destroy documents when no longer needed.

01320 Construction Progress Documentation 5

01321 Network Analysis Schedules 5

01330 Submittal Procedures 6

01352 LEED Requirements 4

01400 Quality Control 4

01420 Reference 10

01500 Temporary Facilities and Controls 12

01524 Construction Waste Management 7

01593 Security Regulation 4

01595 Safety and Health 4

01600 Product Requirements 7

01700 Execution Requirements 6

01731 Cutting and Patching 5

01732 Selective Demolition 9

01735 Fire Prevention Precautions for Hot Work 3

01770 Closeout Procedures 6

01781 Project Record Documents 5

01782 Operation and Maintenance Documentation 7

01820 Demonstration and Training 5

AIR HANDLING UNIT SCOPE OF WORK 3.1 - 1

Property of the United States Government – For Official Use Only. Do not remove this notice. Properly destroy documents when no longer needed.

3.1 AIR HANDLING UNIT SCOPE OF WORK

NARRATIVE - WILLIAM J. GREEN FEDERAL BUILDING

Part 1 General Requirements

1.1 Existing Documents

The Design Builder shall obtain the existing documents of the facility from GSA.

1.2 References

The design shall be in accordance with the Facilities Standards for the Public Buildings Service-revised March 2005 – PBS-P100 and all applicable codes referenced within. The minimum energy performance savings for this project shall exceed 20 percent usage compared to the 2003 baseline for the building.

1.3 Design and Engineering

The Design Builder shall employ qualified licensed architects and engineers to provide full engineering and design services including but not limited to construction documents and specifications.

1.4 CAD Deliverables

The engineering design shall be in accordance with the GSA “Region 3 CAD Deliverables Policy”, March 1, 2005.

1.5 Existing Conditions

The existing equipment, ductwork, piping and automatic temperature control systems associated with the existing systems being modified shall be field verified to establish the exact locations, size etc of the existing installation. The design builder shall perform all necessary survey to verify conditions in the field for the purposes of providing fully coordinated design and construction

1.6 Demolition

AIR HANDLING UNIT SCOPE OF WORK 3.1 - 2

Property of the United States Government – For Official Use Only. Do not remove this notice. Properly destroy documents when no longer needed.

Prior to demolition the contractor shall investigate the corridor ceiling cavities for abandoned live electrical wiring previously used to serve light fixtures. Contractor shall terminate wiring in an approved manner prior to starting any demolition work. The approved manner shall be in agreement with GSA. Remove all existing mechanical work including incidentals as necessary for the installation of the proposed work. No existing work associated with this project shall remain abandoned in place within the building. Coordinate all system shut downs with GSA prior to any action. The contractor shall remove all lined ductwork located in the corridor ceilings. This ductwork shall be removed in a manner so that the temporary systems can serve the occupied spaces during the air handling units demolition and installation.

Part 2 Project Narrative

2.1 Project Goal, Existing System and Proposed System

The goal for this project is to replace the existing single air handling units and multi-zone air handling systems with more efficient units and systems incorporating high efficient motors and variable speed drives where applicable resulting in reduced fan, coil load and pump energy for the building.

The building is served by thirty two air handling units. Four of the units are single zone constant volume units and twenty eight are constant volume multi-zone units. All the air handling units include hot water heating coils and chilled water cooling coils.

Air handling unit nos. 76, 79, 80 and 105 are constant volume units and shall be replaced with constant volume air handling units with premium efficient motors.

Two of the multi-zone air handling units, air handling unit nos. 74 and 75, serve the cafeteria and general office areas. Due to the combination of occupancies and outdoor air requirements integral to the space pressure relationships the existing multi-zone distribution system shall be modified to incorporate both variable volume and constant volume air terminal units. The constant volume air terminal units with reheat coils shall serve the cafeteria area and the variable volume air terminal units with reheat coils shall serve the general office areas. One air terminal unit shall be provided for each existing multi-zone air distribution duct. Multiple duct take-offs shall discharge from the supply air fan section and be ducted to the air terminal units. The supply air discharge ducts downstream of the air terminal units shall connect to the existing multi-zone distribution ducts within the mechanical equipment room. The constant volume and variable air terminal units shall be located in the duct take-offs upstream of the connections to the existing multi-zone distribution ducts. The use of the air terminal units with reheat allows the air handling unit discharge temperature to be a constant 55 degrees F in lieu of the variable temperature supply air in the existing multi-zone units thereby allowing the air handling unit supply and return air flows to track

AIR HANDLING UNIT SCOPE OF WORK 3.1 - 3

Property of the United States Government – For Official Use Only. Do not remove this notice. Properly destroy documents when no longer needed.

the space cooling load through the use of variable speed drives on the supply and return air fans resulting in reduced fan, coil load and pump energy.

The remaining twenty six air handling units serve general office and building areas. The existing multi-zone distribution systems shall be modified to incorporate variable volume air terminal units with reheat coils. Multiple duct take-offs shall discharge from the supply air fan section and shall connect to the existing multi-zone distribution ducts. One variable volume air terminal unit shall be provided for each existing multi-zone air distribution duct. Multiple duct take-offs shall discharge from the supply air fan section and be ducted to the air terminal units. The supply air discharge ducts downstream of the air terminal units shall connect to the existing multi-zone distribution ducts within the mechanical equipment room. The use of the air terminal units with reheat allows the air handling unit discharge temperature to be a constant 55 degrees F in lieu of the variable temperature supply air in the existing multi-zone units thereby allowing the air handling unit supply and return air flows to track the space cooling load through the use of variable speed drives on the supply and return air fans resulting in reduced fan, coil load and pump energy.

In addition to the air handling unit replacement the contractor shall provide new lined ductwork in the corridor where the existing lined ductwork shall be removed.

2.2 Energy Conservation

Prior to the start of design and calculations the contractor shall record air flow readings of the existing air handling equipment including flow rates in each of the multi-zone supply air mains.

Record chilled water and heating water flow rates at the central equipment and the mains serving the William J. Green Federal Building and the branch mains serving the HVAC equipment being modified.

Heating and cooling load calculations shall be performed based on data obtained during a total building survey. The total building survey shall include and not be limited to building envelope, lighting, people, computers, printers, refrigerators, fax machines, microwaves and other heat producing equipment located in the areas served by the air handling systems being modified. The outdoor air quantities shall be based on ASHRAE Standard 62.1-2007. Outdoor air quantities shall be verified against the existing building exhaust systems to maintain building pressurization in accordance with good engineering practices. The heating and cooling load calculations and energy analysis shall be performed using an 8,760 hour computer load and simulation program. The energy analysis shall include outputs of the existing system and the proposed systems. The annual fan, pump and chiller energy savings shall be indicated in KWH/GSF. The annual cooling coil energy savings shall be in MBTU/GSF.

2.3 Temporary Provisions

AIR HANDLING UNIT SCOPE OF WORK 3.1 - 4

Property of the United States Government – For Official Use Only. Do not remove this notice. Properly destroy documents when no longer needed.

The existing occupied areas of the building shall remain air conditioned throughout the project while the air handling units are being removed and new units are being installed. One temporary chilled water vertical fan coil unit shall be provided for each zone served by the multi-zone air handling units. These fan coil units shall be installed in the corridor where the multi-zone air distribution ducts leave the mechanical equipment room. The supply air duct from the fan coil unit shall discharge vertically into the assigned multi-zone air distribution duct. Return air from the ceiling return air plenum shall be ducted to the return side of the fan coil unit. The fan coil units shall be installed on temporary floor supports in order for the condensate to drain into a drain header piped to a condensate pump. Provide the condensate pump and pipe the discharge to the nearest floor drain in the mechanical equipment room. Provide temporary chilled water and heating water piping from the secondary chilled water and heating water risers located in the mechanical equipment room. Provide a two-way electric control valve for each chilled water and heating water coil. The new zone temperature sensor located in the same location as the existing multi-zone temperature sensor shall control the chilled water and heating water valves in sequence. The fan coil unit fan shall operate when the building is operating. Provide filter changes for each fan coil unit as needed during construction. The contractor shall provide temporary duct mounted smoke detectors in the supply and return air ducts for each fan coil unit and tie the detectors into the existing system. Contractor shall provide all necessary hardware and software for the integration of the temporary smoke detectors into the existing fire alarm system.

The contractor shall provide a phasing plan and a tenant impact plan for review and approval by

GSA prior to starting any temporary, demolition or new work.

Part 3 Performance Specifications

3.1 Basic Mechanical Materials and Methods

1. Provide record documents from the field set with the field changes marked in red.

2. Remove debris and construction materials.

3. Keep existing system components clean and free of debris.

4. Protect equipment when delivered to the site from damage.

5. Modify existing and provide housekeeping pads.

6. Provide equipment supports and hangers.

7. Provide identification of the systems and components. Identification shall include name plates, stenciling and valve tags.

8. Provide three copies of bound and indexed operation and maintenance manuals.

9. Provide the GSA and representatives with appropriate filed instruction for the heating, ventilating and air conditioning equipment and HVAC instrumentation and controls.

10. Coordinate all system outages with the building operations manager.

AIR HANDLING UNIT SCOPE OF WORK 3.1 - 5

Property of the United States Government – For Official Use Only. Do not remove this notice. Properly destroy documents when no longer needed.

3.2 Mechanical Vibration and Sound Control

1. Provide vibration isolation for piping connected to the air handling units.

2. Provide sound attenuation for the air handling units in accordance with standard engineering practice.

3.3 Insulation

1. Provide on piping and ductwork systems in accordance with ASHRAE Standard 90.1-2007 and UL listed in accordance with NFPA 90A.

2. Piping shall be sectional molded fiber glass type with canvas finish.

3. Ductwork shall be rigid glass board type in mechanical rooms and flexible glass fiber blanket in concealed spaces.

4. Seal all but joints and maintain the vapor barrier at the interface with existing insulation.

3.4 Building Services Piping

1. All systems shall be drainable.

2. Chilled water and heating water piping 3-inch and smaller shall be copper with soldered joints and 4-inch and larger shall be black steel with welded joints. Air conditioning condensate piping shall be copper with soldered joints.

3. Valves 3-inch and smaller shall be ball type and valves 4-inch and larger shall be high performance butterfly.

4. Strainers shall be Y-type.

5. Provide dielectric couplings where dissimilar pipe materials come in contact.

6. Provide flow measurement devices. Combination shutoff and balancing valve type shall be provided for piping 3-inch and smaller.

7. Provide thermometers and pressure gages in accordance with standard engineering practice.

8. Test all piping in accordance with standard engineering practice.

3.5 Air Handling Units:

1 Basic Unit

a. Standard construction, factory packaged indoor unit. Removable galvanized casing on structural steel frame. Casing shall be double wall with minimum 2-inch, 1-1/2-pound per cubic foot density insulation between solid exterior and solid interior walls. Provide solid exterior and perforated interior wall for the mixing section, fan

AIR HANDLING UNIT SCOPE OF WORK 3.1 - 6

Property of the United States Government – For Official Use Only. Do not remove this notice. Properly destroy documents when no longer needed.

section, filter section and access sections upstream of the cooling coil. The insulation for the sections with a perforated interior shall be minimum 2-inch, 1-1/2-pound per cubic foot density insulation with a matte finish. Interior floor panels shall be solid in all sections. Provide double wall, insulated stainless steel, double sloping drain pan in cooling coil and UVC sections. Access doors shall be gasketed, double wall doors with handles and compression latches and view windows. Factory mounted weather-resistant fluorescent light fixtures shall be located in the mixing section, access section, UVC section and fan section wired to a single switch located on the air handling unit.

b. Air handling unit safety shall be rated and/or certified by UL1995.

c. Air handling unit energy use shall be rated and or certified in accordance with

ASHRAE Standard 90.1. Air handling unit certification shall be in accordance with

ARI 430.

d. A factory trained and authorized person shall inspect and start the unit

2 Fans

a. Bearings shall be selected for an 80,000 hour life. Fans shall be double width double inlet air foil fans except where plenum fans are indicated. Fan and motors shall be internally isolated from the casing with spring vibration isolators and flexible connections.

b. Fans shall be rated or certified in accordance with AMCA 210

3 Motors:

a. Motors shall meet or exceed the NEMA Premium Efficiency power program. Power factor correction shall be provided for motors 5 horsepower and larger except motors controlled by variable speed drives. Motors control by variable speed drives shall be compatible and suitable for the operation with variable speed drives.

Provide with NEMA Insulation Class B except for motors used in conjunction with variable speed drives shall be NEMA Class F insulation with horsepower rating based on Class B rise.

4 Filters:

a. Pre-filters: Pleated media cartridge type, 30 percent efficient, MERV 7.

b. Final filters: Microfiber media cartridge type, 60 percent efficient, MERV 11.

c. Face velocity through the filters shall not exceed 500 feet per minute.

d. Provide a filter gage for each filter and monitor the filter loading through the existing building automation system.

e. Filters media shall be rated in accordance with ANSI/UL 900 listed for Class I or

Class II.

f. Provide one complete set of filters for each unit for balancing and one additional set to turn over to the owner.

5. Coils:

AIR HANDLING UNIT SCOPE OF WORK 3.1 - 7

Property of the United States Government – For Official Use Only. Do not remove this notice. Properly destroy documents when no longer needed.

a. Coils shall be removable with same end connections with copper coil with aluminum fins. 200 psi rated pressure.

b. Face velocity through the coils shall not exceed 500 feet per minute.

c. Coils shall be rated or certified in accordance with ARI 410.

6. Variable Speed Drives

a. Variable torque, frequency controller in enclosure with adjustable controls, isolation transformer, integral disconnect, circuit protection, output contactor, bypass.

b. A factory trained and authorized person shall start the drives.

7. UVC Emitters:

a. Emitters shall be tested and labeled with UL Standard 1995 for usage of UVC Emitters in HVAC equipment. Each components and product shall be factory tested to MIL Standard 105E and ANSI/ASQCZ 1.4. Provide caution labels on the access door and interlock the UVC emitters to de-energize when access door is opened.

8. The air handling unit component configurations shall be as follows:

Unit Nos. 76, 79 and 80:

Mixing Section

Filter Section (2-inch MERV 7 (30%) prefilter and 12-inch MERV 11 (60%) final filter)

Medium Access Section

Preheat Coil

Medium Access Section

Cooling Coil Section

UVC Section

Supply Air Fan

Unit No.105:

Mixing Section Filter Section (2-inch MERV 7 (30%) prefilter and 12-inch MERV 11

(60%) final filter)

Medium Access Section

Cooling Coil Section

UVC Section

Medium Access section

Reheat Coil

Supply Air Fan

Remaining Units:

Return Air Fan

AIR HANDLING UNIT SCOPE OF WORK 3.1 - 8

Property of the United States Government – For Official Use Only. Do not remove this notice. Properly destroy documents when no longer needed.

Economizer Section

Filter Section (2-inch MERV 7 (30%) prefilter and 12-inch MERV (60%) final filter)

Medium Access Section

Cooling Coil Section

UVC Section

Medium Access

Supply Air Fan (Plenum Fan)

3.6 Duct and Duct Accessories

1. Construct ductwork in accordance with SMACNA-HVAC.

2. Ductwork downstream of the air handling unit and upstream of the variable volume air terminal units shall be designed for 3-inch positive pressure.

3. Ductwork downstream of the variable volume air terminal units shall be designed for 2-inch positive pressure.

4. Ductwork downstream of the non-variable volume units shall be designed for 2-inch positive pressure.

5. Return air ductwork shall be designed for minus 2-inches of negative pressure.

6. Relief air ductwork shall be designed for 2-inch positive pressure.

7. Duct lining in the supply and return air ductwork shall be two-inches with a matte finish and perforated galvanized inner liner. Lining shall meet requirements of NFPA.

8. Air flow monitors shall be factory assembled units with air straighteners and total and static pressure sensing manifolds where install in ductwork. Where install in the fan inlet the unit shall be factory assembled with total and static pressure sensing manifolds. Air flow monitors shall be rated or certified in accordance with AMCA 611-95.

9. Sound Attenuators shall have a galvanized casing with enclosed fill material.

10. Ductwork greater than 2-inch positive or negative pressure shall be leak tested in accordance with SMACNA. Reports shall be submitted to the owner.

11. Motor operated dampers shall be provided to isolate systems and in accordance with the ASHRAE Standard 90.1-2007. Smoke dampers are not required to be installed at penetrations of shafts unless smoke dampers are used as part of a smoke control system.

12. Smoke dampers shall be provided for air handling units in accordance with NFPA 90A.

13. Smoke Detectors shall be provided in the supply and return air ducts in accordance with the

2006 International Building Code, 2006 International Mechanical Code and NFPA.

3.7 Air Terminal Units

AIR HANDLING UNIT SCOPE OF WORK 3.1 - 9

Property of the United States Government – For Official Use Only. Do not remove this notice. Properly destroy documents when no longer needed.

1. Single duct air terminal units shall be provided with Direct Digital Control (DDC) control and electric actuation compatible with the existing building automation system. Units shall be variable volume or constant volume as needed. Hot water reheat coils shall be provided.

3.8 HVAC Instrumentation and Controls

1. Provide a complete Direct Digital Control (DDC) system with electric actuation for the HVAC equipment fully integrated into the existing building automation system. The system shall be an extension of the existing building DDC system. Provide all hardware and software necessary for the integration process including graphics. Control points shall be provided in accordance with good engineering practice. Electrical work shall be provided in accordance with NEC. Temporary systems do not require integration into the existing system.

3.9 Testing, Adjusting and Balancing

1. Provide preparation, testing, adjusting and balancing of mechanical equipment and distribution systems including inspection and certification reports. Testing shall be performed by a member of the Associated Air Balancing Council (AABC).

3.10 Commissioning

1. There will be a third party Commissioning Authority contracted through GSA for this project.

2. Contractor’s tests shall be scheduled and documented in accordance with fundamental standard building commissioning services.

3. System verification testing is part of the commissioning process. Verification testing shall be performed by the contractor and witnessed and documented by the Commissioning

Authority. GSA shall be notified of the time and date of any system verification testing in order to be witness the testing.

4. Contractor shall coordinate with the design team and the Commissioning Authority to bring resolution to non-compliant or unacceptable test results.

5. Temporary systems do not require system verification as part of the commissioning process.

3.11 Electrical

AIR HANDLING UNIT SCOPE OF WORK 3.1 - 10

Property of the United States Government – For Official Use Only. Do not remove this notice. Properly destroy documents when no longer needed.

1. Work shall be performed according to all applicable codes and standards including but not limited to the NEC and NFPA.

2. Contractor shall disconnect power to the existing AHUs and remove existing starters/disconnects.

3. Contractor shall reconnect replacement AHUs to new VSDs (provided by mechanical).

4. Contractor shall provide temporary power as needed to temporary FCUs and condensate pumps.

5. Contractor shall disconnect and reconnect fire alarm devices and provide additional devices including but not limited to smoke detectors, dampers, etc.

End of Section

Henry Adams, LLC

600 Baltimore Ave

Baltimore. Maryland 21204

Project No.

Date x

Engineer/Designer

MAX COIL FACE VELOCITY (TYP 500)

439 ACTUAL COIL FACE VELOCITY

TYP. AIR HANDLING UNIT COMPONENTS ARRANGEMENT AND PHYSICAL DATA

r e a i r m i

MIN COIL AREA

Select Trane Unit Size Based on MIN COIL AREA: Trane Size: 35 34.14 ACTUAL COIL AREA

15,000 CFM 500 30.00

8/4/2009 revised 9/3/09

05-G003BA

GSA - ARRA William J. Green and James A. Byrne Buildings

Project Title

Air Handling Unit Selection: Variable Volume Constant Volume S. Dixon

1AHU No.:

48 30 a c p m i f i l a c c o o c p l s u a i r

All Dimensions are in inches

U a c

270 270 350 Lbs

445 350 Lbs

Lbs

Lbs

“Property of the United States Government – For Official Use Only. Do note remove this notice. Properly destroy documents when no longer needed.”

e t u r n f a n i x i n g

TOTAL WEIGHT OF AHU

9,623

1,925

11,548

11,748

WEIGHT FROM ABOVE

20% SAFETY FACTOR

SUB-TOTAL WEIGHT

WEIGHT OF WATER IN COILS

c c e s s p h c i x i n g l t e r s

This diagram indicates the typical component arragement for the air handling units. This diagram indicates how to size the unit based on CFM and a cooling coil face velocity of 500 FPM. All other units will follow similar approach.

Combined Component Weight: 9623 c c e s s o l i n g c o i l l e n u m u p p l y f a n

AIR HANDLING UNIT WEIGHT

U

V

C c c e s s

BYRNE BUILDING PHOTOVOLTAIC ARRAY 3.2.1 - 1

Property of the United States Government – For Official Use Only. Do note remove this notice. Properly destroy documents when no longer needed.

3.2.1 BYRNE BUILDING PHOTOVOLTAIC ARRAY NARRATIVE OVERVIEW

1. Photovoltaic System

The James A. Byrne Courthouse is a GSA property located at 6th and Market Streets in Philadelphia, PA. The building is 92 meters (303 feet) and 22 stories. The design builder is to provide a complete turnkey 80kW photovoltaic (PV) system including all engineering, procurement, installation, testing and operation and maintenance.

The existing roof is a built-up-roofing membrane. Portions of the Byrne Courthouse 22nd, 18th and potentially the 3rd floor roofs are available for installation of PV panels, at the professional discretion of the design builder. By GSA standards PV arrays 250 feet or larger must have a 6 foot setback from the parapet walls. If the array is less than 250 feet, a 4 foot setback is acceptable. Any setbacks must also be confirmed from a structural standpoint to verify safety. This should be accounted for when sizing the array. In addition access aisles and any required fire department access to roofs should be factored into the design. The existing roofs are clear except for a few obstructions on the 22nd floor roof. GSA will arrange to have these obstructions relocated or removed under a separate contract. Existing vents and drains will need to remain and it is the

Design Builders responsibility to work around these.

All work shall be done in accordance with industry standards to the satisfaction of the Authorities

Having Jurisdiction, including metering and interconnection standards set forth by the local Utility.

The photovoltaic system will become the full property of GSA. The Contractor shall complete the required paperwork required to obtain the various tax credits available. The Contractor may wish to factor such credits into his pricing. These include, but are not limited to the Pennsylvania

Alternative Energy Credit and the Federal Tax Credit.

Exhibits:

A ) Roof Plan Figure 3.2.A

B ) Potential Solar Locations Figure 3.2.B

C) Bio-Based Roof Spec 07560

D) Roof Bracket Mount Sample

E) Fire Safety Guidelines for PV System Installations

2. Structural

Preliminary Analysis of the Byrne Building: Photovoltaic panels may be installed on the Byrne building low and high roofs with weights not to exceed 12 pounds per square foot, including ballast.

Preliminary analysis has shown that the existing roof structure requires a 10’-0” setback from penthouse walls and parapets. This is to be verified by the design/builder.

BYRNE BUILDING PHOTOVOLTAIC ARRAY 3.2.1 - 2

Property of the United States Government – For Official Use Only. Do note remove this notice. Properly destroy documents when no longer needed.

3. Additional Work

A. Bio-based Roof Coating System

The Design Builder shall design, specify, and install additional bio-based coating to extend the life of the existing roof, reduce heat island effect, and improve performance as outlined in specification section 07561. Base Bid shall include the areas beneath the photovoltaic array. The Offeror shall provide a unit cost for the coating.

B. Mounting Brackets for window washing rig

The Design Builder shall engineer, design, specify, and install fully operational brackets, pulleys, guides, locks, and safety components for window washing rig for maintenance of the windows and the façade between the 3rd and 22nd floor roofs. For the purposes of the proposal the offeror shall provide 60 bracket mounts and associated roof patching. Bracket mounts shall be engineered and constructed for required loads. Sample of bracket mounts for informational purposes are in exhibits at the end of this section. The Design Builder shall provide this brand bracket mount or equal competitor bracket mount in this project.

End of Section

TECHNICAL SCOPE PHOTO VOLTAIC ARRAY 3.2.2 - 1

Property of the United States Government – For Official Use Only. Do note remove this notice.

Properly destroy documents when no longer needed.

3.2.2 Technical Scope for Roof Mounted Utility-Interactive Photovoltaic System

1. Project Identification

1.1. Photovoltaic Project

1.2. Building: James A Byrne Courthouse

1.3. Location: 601 Market Street Philadelphia PA

1.4. Building Number: PA0277BG

2. Background

2.1. Objective. The Design/Builder shall provide a total “turnkey” project including design, manufacturing and installation services for the installation of a rooftop mounted utility-interactive 80 kW DC photovoltaic system. This project shall meet all technical requirements of this Statement of Work.

2.2. Scope: The contractor shall perform all professional services as necessary to provide GSA with a complete design package including, but not limited by, the requirements outlined in this Statement of Work. The design package shall include specifications, calculations and drawings which will be turned over to GSA. After approval by GSA of the final design package, the contractor shall provide all necessary construction services to successfully install the photovoltaic system.

2.2.1. Design Guidelines. Develop a design for a new photovoltaic system at the James A Byrne Courthouse. See attached drawings indicating the existing roof layout. This drawing is meant for informational purposes only and must be field verified by the contractor.

2.2.1.1. The following performance criteria shall be met:

PV efficiency rating of 18 % or greater.

Mounting system shall be fully ballasted and not require penetrations of the roofing system.

Conduit penetrations shall be limited to one location per floor/roof.

The Contractor shall provide a roof-mounted system with a fixed tilt or flat and an orientation that maximizes annual energy production. Mounting shall be hinged to allow immediate access to the roof below.

TECHNICAL SCOPE PHOTO VOLTAIC ARRAY 3.2.2 - 2

Property of the United States Government – For Official Use Only. Do note remove this notice.

Properly destroy documents when no longer needed.

Power provided shall be compatible with the onsite distribution system.

Estimated energy delivery shall be provided for each month of the year and total for the year. The STC power value will be entered into PVWATTS http://rredc.nrel.gov/solar/codes_algs/PVWATTS/version1/ to determine estimated energy delivery in kWh. A suggested DC to AC De-rate factor is 0.77, however more efficiently engineered and designed systems are encouraged. Support the De-rate factor’s used.

Power capacity shall be measured at the inverter AC output using the PVUSA Test Conditions (PTC), i.e. 1,000 Watts/m2, 20 degree C ambient temperature and wind speed of 1 m/s. The estimated energy delivery shall be based on average solar data for project location.

All PV hardware and structural components shall be either stainless steel or aluminum.

The Photovoltaic panel system including supports and power conductors shall not interfere with roof drains, expansion joints, air intakes, existing electrical and mechanical equipment, existing antennas, and planned areas for future installation of equipment.

PV layout shall not encroach within 10 feet of parapet walls, shall provide for maintenance aisles, and shall provide fire department access to roof areas as required.

The design shall meet the local, state and federal criteria for wind, snow and seismic loads.

2.2.2. Construction. Perform all construction services necessary for the successful installation of the system based upon the design generated from 2.2.1.

2.3. Technical Requirements and Reference Materials

2.3.1. Code Compliance – Installation and equipment shall comply with applicable building, state, seismic, structural and electrical codes. All products that are listed, tested, identified, or labeled by UL, FM, ETL, or other National Recognized Testing Laboratory shall be used when available.

Non-listed products are only permitted when listing does not exist. Non-listed products must be identified as such in all submittals.

TECHNICAL SCOPE PHOTO VOLTAIC ARRAY 3.2.2 - 3

Property of the United States Government – For Official Use Only. Do note remove this notice.

Properly destroy documents when no longer needed.

The contractor shall provide materials that are recyclable, contain recycled materials, and that are EPA or Energy Star Rated if they are available on the market.

The contractor shall in all cases use low VOC components when possible.

PBS P100 “Facilities Standards for the Public Buildings Service” (March 2005) Compliance overall is required, but specifically the electrical and roofing sections should be carefully adhered to. These standards make several references to the National Roofing Contractors Association, SMACNA and several other national codes. All referenced codes shall also be adhered to.

The publications listed below form a part of this document to the extent required to meet the intent of the design:

PV Interconnection Standard 929-2000 NEC Sec 720, also Article 690, 90-2 - Electrical installations of

PV Equipment. Recommended installation practices (March 2001) IEEE 1262 – PV Module Qualification for performance & reliability UL 1703 Flat – Plate PV Modules and Panels UL 1741 – Standard for Static Inverters and Charge Controllers for

Use in Photovoltaic Power Systems FM Approved – Fire Protection tests for Solar Component products

Other technical codes that shall apply include:

AMSE PTC 50 (solar PV performance) ANSI Z21.83 (solar PV performance and safety) NFPA 853 (solar PVs near buildings) NEPA 70 (electrical components) IEEE 1547 (interconnections) ASCE/ SEI-7 – American Society of Civil Engineers – “Minimum

Design Loads for Buildings and Other Structures”.

NFPA 780 – Standard for the Installation of Lightning Protection

Systems NRCA – National Roofing Contractors Association

2.4. Roles and Responsibilities:

TECHNICAL SCOPE PHOTO VOLTAIC ARRAY 3.2.2 - 4

Property of the United States Government – For Official Use Only. Do note remove this notice.

Properly destroy documents when no longer needed.

2.4.1. Contractor. The Contractor is required to provide:

Design Concepts Construction Documents Signed and Sealed by a licensed architect / engineer Construction Schedule Submittals for Materials and Products Construction materials and labor Design and Construction Supervision / Contract Management Materials / Equipment Quality Control Plan Safety Plan Inspections and Tests Manuals (Design Calculations, Operation/Maintenance, Shop

Drawing, etc.)

Training of Building Operating Staff

2.4.2. Government. The Government will provide for review and approval:

The site Review / comment on design submittals, including the Quality

Control Plan Inspection / Test Witnesses to verify attainment of performance requirements Progress payments for design / construction shall be as agreed upon after approval of the progress payment schedule.

3. DRAWINGS AND SPECIFICATIONS

3.1. System Placement. The placement shall be shown in the drawings provided to the government and must be approved by GSA. Also, include a list of existing roof structures that would have to be relocated in order to install the system and their proposed relocation. Several known obstructions are present on the 22nd floor and shall be moved under a separate contract.

3.2. Drawings. The drawings must indicate the location of the solar electric modules, the inverter, lockable disconnect switch, and point of connection with the utility system. This site map must include the installation address and the installer’s name and telephone number. All drawings shall be submitted with

TECHNICAL SCOPE PHOTO VOLTAIC ARRAY 3.2.2 - 5

Property of the United States Government – For Official Use Only. Do note remove this notice.

Properly destroy documents when no longer needed.

dimensions shown in English units with equivalent metric value shown in brackets.

All drawings shall comply with the technical requirements shown under Section 5, “Technical Requirements”.

3.3. Concept Specifications. The specifications shall include all equipment information, proposed installation/interconnection information, and performance characteristics of the system. All specifications shall comply with the technical requirements shown under section 5, “Technical Requirements”. At a minimum, the proposed specifications shall include technical data and product data sheets for the following components:

Equipment Information:

1. Solar Electric Module Manufacturer

2. Power Rating Per Module

3. Module Model Number

4. Number of Modules

5. Total Array Output

6. Inverter Manufacturer

7. Inverter Model Number

8. Number of Inverters

9. Inverters Continuous AC Rating

10. Total Inverter Output

11. Inverters Peak Efficiency and efficiency at various output levels

Installation Interconnection Information:

1. Solar Electric Array Orientation (degrees) relative to the building structure

2. Solar Electric Module Tilt (degrees)

3. Solar Electric Module Tracking (fixed, single-axis, double-axis)

4. System Type and Mode of Operation (Utility Interactive)

Performance Characteristics

1. Estimated kWh/month (shown over a 12 month period)

Warranty

1. Provide a minimum of a 20-year total system warranty. No module will generate less than 90% of its specified minimum power when purchased. PV modules shall have a 20-year limited warranty guarantying a minimum performance of at least 80% of the original power for at least twenty (20) years. If the performance falls below specifications during the Contractor’s warranty period, the Contractor at the Contractor’s expense shall replace / repair the defective equipment. Measurement made under actual installation

TECHNICAL SCOPE PHOTO VOLTAIC ARRAY 3.2.2 - 6

Property of the United States Government – For Official Use Only. Do note remove this notice.

Properly destroy documents when no longer needed.

and temperature will be normalized to standard test conditions using the temperature and coefficients published in the module specifications.

Interconnection Agreement

1. The local utility shall be engaged and specifically involved in the design development and commissioning of the interconnection and other utility specific component issues. The Contractor is responsible for obtaining the interconnection agreement from the utility. The Contractor will provide a copy of the interconnection agreement between the GSA and the utility company. GSA will sign the interconnection agreement, not the Contractor.

Operations and Maintenance Service

1. Provide a three (3) year “initial” Operations and Maintenance Service agreement in this contract in accordance with the manufacturer’s recommendations. O& M agreement shall include all Solar Array equipment, inverters, and other components, to maintain total system operation and warranty. At a minimum, the plan will consist of two visits annually to inspect and clean the panels. Provide unscheduled service to correct malfunctions within 48 hours of notification.

4. DESIGN SERVICES

PV drawing submissions shall be in agreement with overall submission milestones for the design/build project. A final set of as-built drawings shall also be provided to the Government. The design package shall include the following:

4.1. Specifications: Specifications which express all information that demonstrates sufficient detail so as to direct the construction work outlined in this Statement of Work shall be required. The specifications shall include all equipment information, proposed installation/interconnection information, and performance characteristics of the system.

The A/E shall develop the specifications and drawings in accordance with the GSA Region 3 CAD Deliverables Policy. The Construction Document and As- Built Drawing submissions will be returned to the contractor to be redone if they are not 100% compliant with the CAD policy

4.1.1. All drawings, estimates, calculations, and specifications shall be in English units with the equivalent metric value shown in brackets.

4.1.2. The specifications shall completely encompass the

TECHNICAL SCOPE PHOTO VOLTAIC ARRAY 3.2.2 - 7

Property of the United States Government – For Official Use Only. Do note remove this notice.

Properly destroy documents when no longer needed.

Statement of Work and design of the project.

4.1.3. The contract shall take into account a construction plan producing a minimum disruption of day-to-day activities, utilities, services, etc.

4.2. Construction Drawings:

4.2.1. Provide all contract drawings required in accordance with Section 5, “Technical Requirements”. Provide drawings for each discipline required (architectural, structural, electrical, etc.), with separate plans for new work and demolition as well as special types of drawings where necessary, such as enlarged plans, equipment curbing and flashing details, roof penetration details etc. Drawings shall clearly distinguish between new and existing work.

4.2.2. Each drawing shall indicate project title, project number, building name, building number, building address, A/E firm, A/E's address and/or phone number, contract number, drawing title, drawing type, drawing number, and key plan. A cover sheet shall be provided and shall include a list of the drawings, legend, vicinity map, and location map in addition to all items required for each drawing. Each A/E submission shall be clearly dated and labeled. Each drawing sheet submitted shall include a graphic scale in the lower right-hand portion of the sheet. The final set shall be stamped by a registered engineer and/or registered architect for the state in which the building is located. At a minimum, the following drawings are required:

Site Plan Including Utility Locations and Connections – shall show staging and phasing requirements.

Electrical Plans – including Single Line Diagram and Utility Interconnection.

Electrical Details.

Roof Plan – showing the full layout of the system and detailing any obstacles that must be permanently or temporarily removed or relocated.

Any drawings that may be required to install a complete project.

Water proofing details

4.2.3. The Contract Documents shall sufficiently define the Statement of Work and shall stand on their own.

TECHNICAL SCOPE PHOTO VOLTAIC ARRAY 3.2.2 - 8

Property of the United States Government – For Official Use Only. Do note remove this notice.

Properly destroy documents when no longer needed.

4.2.4. Work shall be coordinated on all drawings and specifications to assure that all necessary labor and materials are included to provide a fully functioning photovoltaic system.

4.2.5. Specifically address the means to keep the existing building accessible and operational by means of relocation and / or phasing.

4.3. Calculations: The contractor will provide the following calculations.

4.3.1. System Electrical Calculations:

PVWATTS Calculation.

System Energy Production Calculation showing estimated monthly and yearly energy output.

4.3.2. Roof structural loading calculations, including but not limited to dead load and live load impacts.

4.4. Registration Seals: Each final working drawing and each submitted specification and calculation document shall be signed by, bear the seal of, and show the State Certificate Number of the Architect and / or Engineer who prepared the document and / or is responsible for its preparation.

5. TECHNICAL REQUIREMENTS: SOLAR ELECTRIC MODULE ARRAY

5.1. Photovoltaic Modules

5.1.1. PV Modules shall be UL Listed and shall be properly installed according to manufacturer’s instructions, NEC, and as specified herein.

5.1.2. Modules shall be silicon nitride monocrystalline type.

5.1.3. The PV modules shall be installed such that the maximum amount of sunlight available year-round on a daily basis should not be obstructed. All projects must include documentation of the impact from any obstruction on the seasonal or annual performance of the solar electric array. This analysis can be performed by using the New Jersey Clean Power Estimator on the program website www.njcep.com or similar.

TECHNICAL SCOPE PHOTO VOLTAIC ARRAY 3.2.2 - 9

Property of the United States Government – For Official Use Only. Do note remove this notice.

Properly destroy documents when no longer needed.

5.1.4. The solar electric system shall adhere to a minimum design threshold, relative to the estimated system production using PVWATTS. Solar electric array orientations require that the calculated system output shall be 80% of the default output calculated by PVWATTS. Additionally, all individual series strings of modules output shall be at least 70% of the default output calculated by PVWATTS.

5.1.5. System shall be constructed using tilted module system. The system must still be shown to perform as required.

5.1.6. System wiring shall be installed in accordance with the provisions of the

NEC.

5.1.7. All modules installed in a series string shall be installed in the same plane.

5.2. Inverter and Controls

5.2.1. Each inverter and associated controls shall be properly installed according to manufacturer’s instructions.

5.2.2. The inverter shall be certified as compliant with the requirements of IEEE 929 for small photovoltaic systems and with UL 1741 specifically for utility grid interconnection of PV arrays. The Inverter shall have at a minimum the following features:

UL/ETL Listed Peak Efficiency of 96% or higher Inverter shall have operational indicators of performance and ability to add data acquisition and remote monitoring.

Upon a loss of utility power, control circuitry, in addition to that already present within the inverter, must automatically disconnect the inverter output circuits from the switchboard.

The inverter shall be capable of parallel operation with the existing AC power. Each inverter shall automatically synchronize its output waveform with that of the utility upon restoration of utility power.

5.2.3. The system should be equipped with the following visual indicators and/or controls:

On/off switch with associated lights

TECHNICAL SCOPE PHOTO VOLTAIC ARRAY 3.2.2 - 10

Property of the United States Government – For Official Use Only. Do note remove this notice.

Properly destroy documents when no longer needed.

Operating mode setting indicator AC and DC overcurrent protection Operating status indicator

5.2.4. Warning labels shall be posted on the control panels and junction boxes indicating that the circuits are energized by an alternate power source independent of utility-provided power.

5.2.5. Operating instructions shall be posted on or near the system, and on file with facilities operation and maintenance documents.

5.2.6. Provide detailed Lock Out / Tag Out instructions for all equipment.

5.2.7. Power provided shall be compatible with on site electric distribution systems.

5.2.8. Install inverters and control panels inside of the building where possible.

5.3. Control Panel to Solar Electric Array Wire Runs

5.3.1. Areas where wiring passes through ceilings, walls or other areas of the building shall be properly restored, booted, sealed and returned to its original condition.

5.3.2. All interconnecting wires shall be copper. (Some provisions may be made for aluminum wiring; approval shall be received from utility engineering departments prior to acceptance.)

5.3.3. Thermal insulation in areas where wiring is installed shall be replaced to “as found or better condition.” Access doors to these areas shall be properly sealed and gasketed.

5.3.4. Wiring connections shall be properly made, insulated and weather-protected.

5.3.5. All power wiring shall be attached to the system components by the use of strain reliefs or cable clamps, unless enclosed in conduit.

5.3.6. All outside wiring shall be rated for wet conditions and/or encased in Rigid or aluminum conduit. The last three feet may be liquid tight to allow for

TECHNICAL SCOPE PHOTO VOLTAIC ARRAY 3.2.2 - 11

Property of the United States Government – For Official Use Only. Do note remove this notice.

Properly destroy documents when no longer needed.

movement and maintenance.

5.3.7. Insulation on any wiring…