Coversheet with TOC SOW and 01100.pdf

GSA New England Region

U.S. General Services Administration Thomas P. O'Neill, Jr. Federal Building 10 Causeway Street Boston, MA 02222 www.gsa.gov

Construction Contract for ARRA Projects in Support of Energy Conservation Measures at the Burlington Courthouse and Federal Building (VT0024) Burlington, VT

GSA Solicitation No.: GS-01P-10-BZ-C-0023

Volume 3: The Specifications

BID DUE DATE: May 4, 2010

TIME: 2:00 PM, LOCAL TIME

LOCATION: GENERAL SERVICES ADMINISTRATION

GSA RECEPTION DESK

10 CAUSEWAY STREET, 11th Floor

BOSTON, MA 02222-1022

ATTN: BID CUSTODIAN

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

THE INFORMATION COLLECTION REQUIREMENTS CONTAINED IN THIS

SOLICITATION/CONTRACT THAT ARE NOT REQUIRED BY REGULATION HAVE

BEEN APPROVED BY THE OFFICE OF MANAGEMENT AND BUDGET PURSUANT

TO THE PAPERWORK REDUCTION ACT AND ASSIGNED OMB CONTROL NO.

3990-0163.

ARRA Projects in Support of Energy Conservation Measures at the

Burlington Courthouse and Federal Building (VT0024) Burlington, VT - Solicitation No. GS-01P-10-BZ-C-0023

TABLE OF CONTENTS TOC - 1

PROPERTY OF THE UNITED STATES GOVERNMENT

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TABLE OF CONTENTS

STATEMENT OF WORK

DIVISION 1 - GENERAL REQUIREMENTS

01100 SUMMARY

01140 WORK RESTRICTIONS

01260 OPTIONS

01320 CONSTRUCTION PROGRESS DOCUMENTATION

01330 SUBMITTAL PROCEDURES

01400 QUALITY CONTROL

01420 REFERENCES

01500 TEMPORARY FACILITIES AND CONTROLS

01546 SAFETY AND HEALTH

01593 SECURITY REGULATIONS

01600 PRODUCT REQUIREMENTS

01700 EXECUTION REQUIREMENTS

01731 CUTTING AND PATCHING

01732 SELECTIVE DEMOLITION

01735 FIRE PREVENTION PRECAUTIONS FOR HOT WORK

01770 CLOSEOUT PROCEDURES

01781 PROJECT RECORD DOCUMENTS

01782 OPERATION AND MAINTENANCE DOCUMENTATION

01820 DEMONSTRATION AND TRAINING

Burlington Courthouse and Federal Building (VT0024) Burlington, VT - Solicitation No. GS-01P-10-BZ-C-0023

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DIVISION 23 – HEATING VENTILATING AND AIR CONDITIONING

230716 HVAC EQUIPMENT INSULATION

230900 INSTRUMENTATION AND CONTROL FOR HVAC

235239 FIRE-TUBE BOILER BURNER MODIFICATIONS

DIVISION 26 - ELECTRICAL

260519 LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES

PHOTOS OF EXISTING SITE CONDITIONS

Burlington Courthouse and Federal Building (VT0024) Burlington, VT - Solicitation No. GS-01P-10-BZ-C-0023

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STATEMENT OF WORK

PART 1 - GENERAL

1.1 PROJECT IDENTIFICATION

A. Project Title: ARRA Projects in Support of Energy Conservation Measures

B. Building: Burlington Courthouse and Federal Building

C. Location: 11 Elmwood Avenue Burlington, VT 05401

D. Building Number: VT0024

E. Solicitation No.: GS-01P-10-BZ-C-0023

F. Contract No: N/A

G. Project Summary Descriptions: The project includes but is not limited to the following Work:

1. Project No.1 – Base Bid

a. Install EMS variable speed drive control for two (2) heating water pumps and use the differential pressure bypass valve during heating cycle as a second stage of control.

2. Project No.2 – Base Bid

a. Install carbon dioxide (CO2) sensors and associated wiring and controls in eight

(8) air handling units (AHU-1, AHU-1A, AHU-1B, AHU-2, AHU-3, AHU-4, AHU-4A & AHU-B1) to implement demand controlled ventilation.

3. Project No.3 – Base Bid

a. Replace six (6) existing pneumatic control valves in basement mechanical rooms with electric control valves and remove compressors.

4. Project No. 4 – Option No. 1

a. Integrate chiller controls with the EMS to implement chilled water temperature reset. Utilize EMS control of the cooling tower fans to implement condenser water supply temperature reset control based on outside air dew point temperature.

Replace cooling tower fan motors and install variable frequency drives on the cooling tower fans controlled by the EMS.

5. Project No. 5 - Option No. 2

Burlington Courthouse and Federal Building (VT0024) Burlington, VT - Solicitation No. GS-01P-10-BZ-C-0023

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a. Update boiler plant controls to optimize performance of boilers to include supply water temperature reset and installation of fuel air ratio controller on boiler burners.

6. Project No. 6 – Option No. 3

a. Install EMS control of post office vestibule fan coil unit with setback temperatures.

7. Project No. 7 – Option No. 4

a. Replace and relocate freeze stats to leaving side of dual temperature coil on six (6) air handling units that have had steam coils taken out of service.

8. Project No. 8 – Option No. 5

a. Add EMS schedule control of five (5) exhaust fans.

9. Project No. 9 – Option No. 6

a. Insulate condensate return tanks on the boiler feed system.

1.2 BUILDING DESCRIPTION

A. GENERAL:

1. The Burlington Courthouse and Federal Building is a 6 story structure with a basement and sub basement which contains 147,860 gross square feet of offices, Post Office (approximately 16,000 sf of the gross) and courtroom space. The main entrance opens into the Post Office Lobby, which has terrazzo flooring. The building is located in the heart of the commercial business district of Burlington, VT.

Major renovations have been undertaken over the last couple of years, including replacement of the elevators, main electrical gear, generator, the windows, and HVAC air handling units serving the second through sixth floors. The roof was replaced in FY 06.

B. HVAC SYSTEMS:

1. The water heating system at the Burlington Federal building and US Post Office is made up of three Cleaver Brooks 6,277,000 btu/hr, 150 hp steam dual fuel gas/oil fired boilers;

two 20 hp Taco circulating pumps with variable speed drives, and an industrial combustion boiler instrument control.

The chilled water system is comprised of two Marley 150 ton cooling towers, two Trane 180 ton chillers, and four Taco 10 hp pumps.

There are ten newer Trane air handlers ranging in size from 1,575 to 9,220 cfm, accompanied by six older Dunham Bush air handlers, which range in size from sizes 1,600 to 5,900 cfm, and one 1,680 cfm Carrier air handling unit. Two of the Dunham Bush air handlers are inactive. There is ten Trane and 44 Price Manufacturing variable air

Burlington Courthouse and Federal Building (VT0024) Burlington, VT - Solicitation No. GS-01P-10-BZ-C-0023

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volume (VAV) boxes of varying duct sizes. There is also a Frigidaire heat pump, and a Trane 5 ton package unit with two remote heating coils.

Located under the windows are two-hundred and ten Trane fan coil units with combination heating/cooling coils, eighty feet of steam convection baseboard and seventy-five feet of hot water baseboard. There are also four ceiling mounted fan coils.

There are six split system A/C systems ranging in cooling capacity from 1.5 tons to 10 tons including a 1.5 ton Mitsubishi, two 2 ton Liebert computer room systems, a 2.5 ton Trane AHU-16 serving the elevator machine room, a 5.6 ton Data-Aire, and a six ton Carrier unit.

There is a Honeywell EMS system using the Symetre program which has twenty-two zone manager control modules, nine control modules, and thirty-eight VAV/FPB controllers. There are seven-hundred and eighty-three control points: thermostats, transmitters, pneumatic valves, electric pressure switches, and timers. There is also a central refrigeration control panel.

In the building is a heat recovery unit system tagged as HRU-1 and manufactured by American Air Exchanger with a 20hp supply and 10hp exhaust fan.

C. ELECTRICAL SYSTEMS:

1. A single utility service meter for the Burlington Building is located in the switch room B007. There is also a customer owned meter device installed at the 208 Volt secondary of the main switchboard transformer in this same room. Overall the building electrical distribution and lighting systems are in good condition. Routine preventative maintenance and testing of switchboards and panels was completed in the 2nd quarter of 2009. Most local utilization panels contain at least 20% space capacity. The HVAC equipment and fan motors are typically equipped with variable speed drives when used in variable air volume systems.

The building exterior walk areas are well illuminated. The rear parking area is illuminated with minimal security lighting. Exterior lighting consists of non cutoff type High Intensity Discharge (HID) wall packs, under canopy, and area floods. The exterior lights are controlled by photo sensors. A project has been implemented with an outstanding request for pricing to replace the exterior lighting with energy efficient LED technology. This is expected to reduce the consumption by greater than 60%.

The interior lighting scheme provides low glare uniform illumination of common spaces with adequate illumination provided in the general office spaces. Lighting fixtures consist of T8 fluorescent technology with magnetic ballasts throughout with primarily deep cell parabolic fixtures and few compact fluorescent wall sconces, pendants and down lights. Lamps are primarily 31Watt U-shaped T8. There are several HID type fixtures in the courtrooms and Post Office lobby area. Several private offices contain supplemental incandescent table lamps. Most office spaces feature user operated toggle controls with a few ceiling or wall type occupancy sensors. It is understood that the night guard turns off lights where an occupant may have neglected to do so. The central

Burlington Courthouse and Federal Building (VT0024) Burlington, VT - Solicitation No. GS-01P-10-BZ-C-0023

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corridor lighting on all floors is motion sensor controlled with wall sensor at main points of entry.

PART 2 - PROJECT PERFORMANCE CRITERIA

2.1 Project No.1 – Base Bid

A. Install EMS variable speed drive control for two heating water pumps and use the differential pressure bypass valve during heating cycle as a second stage of control.

B. Currently the two 20 hp heating hot water pumps that are equipped with variable speed drives operate in a constant speed mode with the bypass valve maintaining system pressure via the EMS. Energy savings can be realized by controlling the heating water pump speed with the variable speed drives via input from the EMS based on system pressure and using the differential pressure bypass valve control currently installed which will be opened when the VSD is at minimum and the system pressure is above set point.

C. Contractor shall provide all programming, wiring, equipment, materials and labor to enable the existing EMS to interface with the two variable speed drives on the two heating hot water pumps. One pump shall be a standby pump and shall be enabled upon failure of the lead pump.

D. Sequence of operations:

1. The EMS shall continue to enable the heating system as currently configured.

2. The differential bypass valve shall be driven closed upon enabling of the heating system.

3. The EMS shall provide lead-lag control of the heating system circulation pumps P-1 and P-2. The lead pump shall be user selectable through the EMS and will be automatically alternated after every 100 hours (adjustable) of operation. If the EMS senses that the lead pump has failed, the lead pump will drop out, the lag pump will operate and the appropriate alarm message shall be printed and displayed. Flow is proven across each pump by a current sensing switch.

4. P-1 and P-2 pump speed shall be varied to maintain a constant differential pressure set-point between the dual temperature system mains. Existing differential pressure sensor shall be utilized.

5. The bypass valve shall modulate open to maintain system pressure when differential pressure rises above set-point and pump speed is at minimum speed set-point (18 HZ) (adjustable).

E. Reference the following specification sections:

1. General and Supplementary Conditions.

2. Division 01 Specification Sections.

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3. SECTION 230900 - INSTRUMENTATION AND CONTROL FOR HVAC

2.2 Project No.2 – Base Bid

A. Install carbon dioxide (CO2) sensors and associated wiring and controls in eight (8) air handling units (AHU-1, AHU-1A, AHU-1B, AHU-2, AHU-3, AHU-4, AHU-4A & AHU-B1) to implement demand controlled ventilation.

B. The minimum outdoor air cfm for each air-handling unit shall be reduced through the installation of new DDC controls to implement a demand controlled ventilation strategy. The contractor shall install an outside air CO2 sensor near one of the air handling unit’s outdoor air intake and positioned as to be representative of the air outside of the building. CO2 sensors shall be installed into the main return air duct near the return fan of each air handling unit. The minimum outdoor air cfm for each air-handling unit shall be 0 cfm (adjustable).

C. The contractor shall install all control points and provide programming of the existing control panels as necessary to provide for the implementation of the demand controlled ventilation strategy.

D. Sequence of operations:

1. The EMS demand controlled ventilation (DCV) controls shall be enabled when the supply fan is on. The outside air damper shall be closed and the DCV disabled when the fan status is off.

2. The EMS shall modulate the outside air damper to maintain an outside air / return air CO2 differential of 400 ppm CO2 (adjustable) during the occupied mode. As the return air CO2 level approaches this differential the outdoor air damper shall modulate open towards a maximum set-point.

3. During the heating mode the DCV shall close the outside air damper to the minimum position required by the DCV control and modulate the heating valve as per the existing sequence of operations to maintain the discharge air temperature set-point.

4. During the cooling mode, the EMCS shall select the highest outside air damper open command between the mixed air temperature control command value and the DCV command value. Hence, the mixed air temperature control sequence shall modulate the outside air damper from the DCV command value as the minimum position.

5. An alarm shall be generated at the EMS workstation monitor for return air CO2 levels above 1050 ppm CO2 (adjustable).

E. Reference the following specification sections:

1. General and Supplementary Conditions.

2. Division 01 Specification Sections.

3. SECTION 230900 - INSTRUMENTATION AND CONTROL FOR HVAC

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2.3 Project No.3 – Base Bid

A. Replace six existing pneumatic control valves in basement mechanical rooms with electric control valves and remove compressors.

B. The contractor shall provide all labor, wiring, equipment, materials, control points and programming of the existing control panels as necessary to provide for the replacement of the control valves. The control logic shall remain the same as it currently is.

C. Replace four 6” butterfly valves fitted with pneumatic actuators that function as two way changeover valves for heating / cooling changeover of the dual temperature system. These valves shall be replaced with butterfly valves with electric powered actuators in accordance with the specifications.

D. Replace one 6” butterfly valve fitted with a pneumatic actuator that functions as a differential pressure bypass valve for the dual temperature system. This valve shall be replaced with a butterfly valve with an electric powered actuator in accordance with the specifications.

E. Replace one modulating steam valve that serves the building’s heating hot water heat exchanger. The heat exchanger’s rated capacity is 9000 pounds of steam per hour at 2 psi. The existing steam valve is to be replaced with two steam valves operating in a 1/3rd – 2/3rd application to provide more precise control throughout the entire throttling range.

F. Remove two existing air compressors. Disconnect and remove power wiring from air compressors to the wall mounted disconnect switches. Disconnect and remove compressed air piping from compressors to the refrigerated air dryers. Disconnect and remove refrigerated air dryers from wall. Disconnect and remove EMS status points associated with compressors.

Remove concrete air compressor housekeeping pads and patch floor.

G. Reference the following specification sections:

1. General and Supplementary Conditions.

2. Division 01 Specification Sections.

3. SECTION 230900 - INSTRUMENTATION AND CONTROL FOR HVAC

2.4 Project No. 4 – Option No. 1

A. Integrate chiller controls with the EMS to implement chilled water temperature reset. Utilize EMS control of the cooling tower fans to implement condenser water supply temperature reset control based on outside air dew point temperature. Replace cooling tower fan motors and install variable frequency drives on the cooling tower fans controlled by the EMS.

B. Implement chilled water temperature reset sequencing for two existing chillers by making upgrades to the Energy Management System (EMS).

1. General:

Burlington Courthouse and Federal Building (VT0024) Burlington, VT - Solicitation No. GS-01P-10-BZ-C-0023

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a. Chillers: Two Trane Series R Centravac

b. Model Number: RTHB180FLC00NWP000UNN3LF2LFV0QU

c. Serial Numbers: U95A05610 and U95A05611

d. The Existing Automatic Temperature Control System (ATC) / Energy

Management System (EMS) is the SymmetrE Energy Management System incorporating Direct Digital Control (DDC) .

2. Contractor shall provide all programming, wiring, equipment, materials and labor to enable the existing EMS to interface with the two chiller control panels to increase the chilled water temperature based on outdoor air temperature. The EMS shall provide a proportional input to the chiller microprocessor controller to reset the chilled water set-point. The chiller microprocessor will continue to modulate the capacity of the chiller to satisfy set-point.

a. The EMS shall be configured to provide a hard wired 2-10Vdc or 4-20mA signal

3. Sequence of operations:

a. The EMS shall increase the chilled water temperature from the design value (45°F) up to 5°F (adjustable) higher than the design value as the ambient temperature decreases from the design value 85°F (adjustable) to 60°F (adjustable).

b. Chilled water reset temperature shall be decreased by one degree every 30 minutes (adjustable) if any air handling unit in operation has a return air relative humidity above an upper limit of 60% (adjustable).

C. Implement condenser water temperature reset sequencing for two existing cooling towers by making upgrades to the Energy Management System (EMS). This work shall include the replacement of the existing two speed fan starters with variable speed drives and the replacement of two speed 7.5 hp motors on the tower fans with TEFC premium efficiency motors. This work is to be performed on each cell of the two cell cooling tower.

1. Replace two existing indoor two speed starters located in the penthouse mechanical room with two variable speed drives. Variable speed drives shall be ABB ACH550 E-Clipse VFD or engineer approved equal, 7.5 HP, 208 V/ 3 phase, in NEMA 1 Enclosure.

2. Replace two existing 7.5 hp two speed cooling tower fan motors with 7.5 hp premium efficiency motors suitable for use with variable speed drives. Motors shall be AC Electric or approved equal, 7.5 hp, 3 phase/ 60 hz/ 200 volt, 1800 rpm, 1.15 service factor, TEFC, 213T frame, horizontal foot mounted, premium efficiency.

3. The current cooling tower fan staging is as follows. The cooling tower condenser water bypass valve is closed at 80 deg. F condenser water supply temp. The tower #1 low speed fan starts at 83 deg. F, tower #2 low speed fan starts at a condenser water supply temp of 86 deg. F. Tower #1 switches to high speed at 90 deg. F and tower #2 switches to high speed at 93 deg. F. This sequence results in not taking advantage of opportunities to maximize efficiency by allowing condenser water temperatures to be higher than what may be obtainable. Tighter temperature control and greater chiller efficiency and could be provided with the installation of variable frequency drives on the cooling tower fans controlled by the EMS.

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The change to EMS control of the tower fans with condenser water supply temperature reset control based on outside air dew point temperature shall be provided. This provides a significant opportunity to improve chiller efficiency by lowering the supply water temperature to the condenser to 65 deg. F when the outside air wet bulb is 60 deg. F or below and keeping it approximately 5 deg. F above the wet bulb at higher temperatures.

4. Sequence of operations:

a. The bypass valve and cooling tower fans shall be modulated to maintain the condenser water supply temperature setpoint. The cooling tower fans shall not be enabled until the bypass valve is completely closed. On a rise in temperature the bypass valve is modulated closed to allow water over the towers. The bypass valve shall modulate open to maintain a minimum condenser water return temperature of 65 degrees F. On a continued rise above 65 degrees F the cooling tower fans shall operate at minimum speed. The cooling tower fans speeds shall operate in unison.

The cooling tower fan speeds shall modulate to maintain setpoint. Cooling tower water return setpoint shall be reset to be at least 5 degrees F (adjustable) higher than ambient wet bulb temperature.

5. General:

a. Cooling Towers: Two Cell Marley Model Number: NC2002CS

b. Serial Number: 68296-001

c. Cooling tower is equipped with two two-speed motors and starters on fan motors.

d. The Existing Automatic Temperature Control System (ATC) / Energy

Management System (EMS) is the Siebe Environmental Controls NETWORK 8000 System.

D. Provide product data submittal for approval for VFD’s and Fan motors.

E. Reference the following specification sections:

1. General and Supplementary Conditions.

2. Division 01 Specification Sections.

3. SECTION 230900 - INSTRUMENTATION AND CONTROL FOR HVAC

4. SECTION 260519 - LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND

CABLES

2.5 Project No. 5 - Option No. 2

A. Update boiler plant controls to optimize performance of boilers to include supply water temperature reset and installation of fuel air ratio controller on boiler burners.

B. Install fuel air ratio controller and O2 trim equipment onto three existing boilers in accordance with the specifications.

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C. The contractor shall install all control points and provide programming of the existing control EMS system as necessary to provide for the implementation of the heating hot water temperature reset sequence.

D. Sequence of operations:

1. Heating hot water system supply water temperature reset.

a. The temperature of the hot water supply water shall be reset based on the temperature of the outside air. The reset set-point shall be maintained by modulating the steam to the heat exchanger. The reset schedule shall be 200 deg F supply temp at -10 deg F outside air temperature and 140 deg F supply temperature at 60 deg F outside air temperature.

E. Reference the following specification sections:

1. General and Supplementary Conditions.

2. Division 01 Specification Sections.

3. SECTION 230900 - INSTRUMENTATION AND CONTROL FOR HVAC

4. SECTION 235239 - FIRE-TUBE BOILER BURNER MODIFICATIONS

5. SECTION 260519 - LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND

CABLES

2.6 Project No. 6 – Option No. 3

A. Install EMS control of post office vestibule fan coil unit with setback temperatures.

B. The contractor shall provide all labor, wiring, equipment, materials, control points and programming of the existing control panels as necessary to provide for the integration of the existing Post Office vestibule fan coil unit controller with the existing EMS.

C. Replace existing wall stat with temperature sensor and reconnect the existing pan leak sensor to the controller. Provide programming to incorporate this leak sensor data point.

D. Sequence of operations:

1. The EMS shall cycle the fan coil unit fan and modulate either the heating control valve or cooling valve to maintain the occupied space temperature heating set-point of 68 deg F (adjustable) and cooling set-point of 75 deg F (adjustable). Unoccupied heating set-point shall be 50 deg F (adjustable) and unit shall be off in unoccupied cooling mode.

E. Reference the following specification sections:

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2. Division 01 Specification Sections.

3. SECTION 230900 - INSTRUMENTATION AND CONTROL FOR HVAC

2.7 Project No. 7 – Option No. 4

A. Replace and relocate freeze stats to leaving side of dual temperature coil on six (6) air handling units that have had steam coils taken out of service.

B. Six air handling units (AHU-1, AHU-1B, AHU-2, AHU-3, AHU-B, & AHU-B1) have had their steam preheat coils disconnected and have these steam coils removed from service. The chilled water coil on these units is now used as a dual temperature coil providing heating in the winter and cooling in the summer. The freeze stats on these units are now upstream of the heating coil and results in frequent nuisance trips.

C. Install a new capillary tube type freeze stat with manual reset into the six air handling units across the leaving air side of the dual temperature coil. Extend existing wiring to new freeze stats. Remove existing freeze stat switches.

D. Replace non functioning outside air damper on AHU-2. Damper is approximately 20” x 60”.

E. Reference the following specification sections:

1. General and Supplementary Conditions.

2. Division 01 Specification Sections.

3. SECTION 230900 - INSTRUMENTATION AND CONTROL FOR HVAC

2.8 Project No. 8 – Option No. 5

A. Add EMS schedule control of five exhaust fans.

B. The contractor shall provide all labor, wiring, equipment, materials, control points and programming of the existing control panels as necessary to provide for the integration of the control of five existing exhaust fans with the existing EMS.

C. Sequence of operations:

1. During the occupied cycle, the EMS shall energize each fan and open the respective damper. The fan shall operate continuously.

2. During the unoccupied cycle, the fans shall remain off and dampers shall be closed.

D. Reference the following specification sections:

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2. Division 01 Specification Sections.

3. SECTION 230900 - INSTRUMENTATION AND CONTROL FOR HVAC

2.9 Project No. 9 – Option No. 6

A. Insulate condensate return tank (approx. 32” diameter x 48” long) and boiler feed tank (approx.

48” diameter x 98” long) on the boiler feed system.

B. The existing condensate return tank and boiler feed tank located in the boiler room are uninsulated. Furnish and install mineral fiber board insulation onto entire tank for both tanks.

C. Mineral-Fiber Tank Insulation: Mineral or glass fibers bonded with a thermosetting resin.

Semirigid board material with factory-applied ASJ complying with ASTM C 1393, Type II or Type IIIA Category 2, or with properties similar to ASTM C 612, Type IB. Nominal density is

2.5 lb/cu. ft. (40 kg/cu. m) or more. Thermal conductivity (k-value) at 100 deg F (55 deg C) is

0.29 Btu x in./h x sq. ft. x deg F (0.042 W/m x K) or less.

1. ASJ: White, kraft-paper, fiberglass-reinforced scrim with aluminum-foil backing;

complying with ASTM C 1136, Type I.

2. Products: Subject to compliance with requirements, provide one of the following:

a. CertainTeed Corp.; CrimpWrap.

b. Johns Manville; MicroFlex.

c. Knauf Insulation; Pipe and Tank Insulation.

d. Manson Insulation Inc.; AK Flex.

e. Owens Corning; Fiberglas Pipe and Tank Insulation.

D. Install insulation materials, accessories, and finishes with smooth, straight, and even surfaces;

free of voids throughout the length of equipment.

E. Steam condensate tank and boiler feed tank insulation shall be the following:

1. Mineral-Fiber Pipe and Tank Insulation: 2 inches (50 mm) thick.

F. Reference the following specification sections:

1. General and Supplementary Conditions.

2. Division 01 Specification Sections.

3. SECTION 230716 - HVAC EQUIPMENT INSULATION

END OF STATEMENT OF WORK

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Burlington Courthouse and Federal Building (VT0024) Burlington, VT - Solicitation No. GS-01P-10-BZ-C-0023

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SECTION 01100 - SUMMARY

PART 1 - GENERAL

1.1 PROJECT IDENTIFICATION

A. Project Title: ARRA Projects in Support of Energy Conservation Measures

B. Building: Burlington Courthouse and Federal Building

C. Location: 11 Elmwood Avenue Burlington, VT 05401

D. Building Number: VT0024

E. Project Summary Descriptions: The project includes but is not limited to the following Work:

1. Project No.1 – Base Bid

a. Install EMS variable speed drive control for two (2) heating water pumps and use the differential pressure bypass valve during heating cycle as a second stage of control.

2. Project No.2 – Base Bid

a. Install carbon dioxide (CO2) sensors and associated wiring and controls in eight

(8) air handling units (AHU-1, AHU1-A, AHU-1B, AHU-2, AHU-3, AHU-4, AHU-4A & AHU-B1) to implement demand controlled ventilation.

3. Project No.3 – Base Bid

a. Replace six (6) existing pneumatic control valves in basement mechanical rooms with electric control valves and remove compressors.

4. Project No. 4 – Option No. 1

a. Integrate chiller controls with the EMS to implement chilled water temperature reset. Utilize EMS control of the cooling tower fans to implement condenser water supply temperature reset control based on outside air dew point temperature.

Replace cooling tower fan motors and install variable frequency drives on the cooling tower fans controlled by the EMS.

5. Project No. 5 - Option No. 2

a. Update boiler plant controls to optimize performance of boilers to include supply water temperature reset and installation of fuel air ratio controller on boiler burners.

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6. Project No. 6 – Option No. 3

a. Replace and relocate freeze stats to leaving side of dual temperature coil on six (6) air handling units that have had steam coils taken out of service.

7. Project No. 7 – Option No. 4

a. Add EMS schedule control of five(5) exhaust fans.

8. Project No. 8 – Option No. 5

a. Insulate condensate return tanks on the boiler feed system.

F. Engineer: The term Engineer refers to the project designer. The Engineer’s status relative to the construction will be delineated in writing by the Contracting Officer prior to the pre-construction conference. The project was designed by:

BBIX, LLC

153 Milk Street, Suite 200 Boston, MA 02109 Tel. 617-951-2700 e-mail: shafii@bbix.com

G. Construction Manager: The Construction Manager's status relative to the construction will be delineated in writing by the Contracting Officer prior to the pre-construction conference. The Construction Manager is:

H. The Project Manager / COR for the project is:

Patrick Ross General Services Administration GSA Project Manager - COR General Services Administration Design and Construction Division J.C. Cleveland Federal Building 53 Pleasant Street, Concord, NH 03301

Phone: (617) 913-6267

I. The Contracting Officer for the project is:

Donna Maffeo General Services Administration GSA Contracting Officer - CO General Services Administration PBS – Property Development Division, Room 975 Thomas P. O'Neill Jr. Federal Building 10 Causeway Street

Burlington Courthouse and Federal Building (VT0024) Burlington, VT - Solicitation No. GS-01P-10-BZ-C-0023

SUMMARY 01100 - 3

PROPERTY OF THE UNITED STATES GOVERNMENT

FOR OFFICIAL USE ONLY

Boston, MA. 02222

Phone: (617) 565-6012

1.2 MISCELLANEOUS PROVISIONS

A. Work in the extension of existing conditions shall correspond in all respects with the existing conditions to which it connects, or to similar existing conditions, in materials, workmanship and finish.

B. Alterations to Existing Conditions: Existing conditions shall be cut, drilled, removed, temporarily removed, or removed and replaced, as necessary for performance of Work under the Contract.

1. Replacements of existing conditions that are removed shall match similar existing conditions.

2. Unless otherwise indicated, existing structural members shall not be cut or altered without authorization by the Contracting Officer.

3. Conditions remaining in place, which are damaged or defaced during the Work, shall be restored to the condition existing at time of award of Contract.

4. Discolored or unfinished surfaces exposed by removal of existing conditions, that are indicated to be final exposed surfaces, shall be refinished or replaced as necessary to produce uniform and harmonious contiguous surfaces.

C. Existing structures will remain in place.

D. Existing utility services with related meters and equipment will remain in place.

E. Removed items indicated to remain the property of the Government shall be stored on site where directed by the Contracting Officer.

PART 2 - PRODUCTS (Not Applicable)

PART 3 - EXECUTION (Not Applicable)

END OF SECTION 01100