J-2. Specification_Building 6 Modular Office.pdf

MODULAR

QA OFFICE

BUILDING 6

NAVAL UNDERSEA WARFARE

CENTER DIVISION NEWPORT, RI

Building 6 - Modular QA Office B6MODOFF

1. SUMMARY OF WORK

1.1 Background

This project is located at the Naval Undersea Warfare Center Division Newport (NUWCDIVNPT). NUWCDIVNPT is a Department of the Navy full-spectrum research, development, test and evaluation, engineering, and fleet support center for submarine warfare systems and other systems associated with undersea warfare.

This project is to construct a module style office in the Quality Assurance Department of Building 6.

1.2 Project Description

The work at Building 6 includes: Erection of Government purchased Office Module, Installation of set of Double doors and one Single door, Installation of Ductless Split Unit HVAC System with Cassette style evaporative unit, Acoustical Ceiling System, Lighting System, Fire Suppression Wet Pipe system, and Vinyl Flooring.

1.3 Time of Completion

Work shall be prosecuted diligently and shall be competed for use within 180 days from receipt of notice to proceed. Once on site, the contractor shall have work complete within a 45 day period max. If work will not be complete within the time allotted, provide a request for time extension with the Contracting Officer with proof of any cause of delay. Installation will block main source of egress, alternate route for entry and exit of shop will need to be established prior to start of construction.

1.4 Contract Drawings

NUWC Drawing Package accompanies this statement of work and are a part thereof.

1.5 Regulatory Notification

When required, due to the type of work being performed, provide regulatory notification requirements in accordance with federal, state, and local regulations. In cases where the government will also provide public notification, coordinate with the Contracting Officer. Submit copies of regulatory of regulatory notifications to the Contracting Officer at least 15 days prior to commencement of work activities.

Typically, regulatory notifications must be provided for the following (this listing is not all-inclusive): demolition, renovation, NPDES defined site work, construction, removal or use of a permitted air emissions source, and remediation of controlled substances (asbestos, hazardous waste, lead paint.)

1.6 Permits

In addition to state permits, local NAVSTA permits are required prior to the use of open flames, grinding, or excavation.

ACTIVITY PERMIT REQ. Local Permit Authority Contact Information Open Flames Grinding Burn NAVSTA

Fire Department (401)-841-2225

Photography Photography NUWC Security Government Sponsor Computer Use Non-NUWC Owned

Computer Equipment NUWC Information

Security Manager Government Sponsor

2. WORK RESTRICTIONS

2.1 Work Restrictions

Unless otherwise indicated herein, work must take place between 0730 and 1600 Monday through Friday, excluding Federal Holidays. Make application 15 calendar days prior to such work to allow arrangements to be made by the Government. In the request, provide the specific dates, hours and location, type of work to be performed, contact number and protect title.

2.2 Photography

Unofficial photography is prohibited on NUWCDIVNPT. When required to record progress and existing conditions, a permit must be obtained from NUWC Security.

Justification and camera details will be required. Coordinate permit application with NUWCDIVNPT Government Sponsor.

2.3 Computer Use

Non-NUWC Owned Computers are prohibited on NUWCDIVNPT.

2.4 Wi-Fi

The use of Wi-Fi is strictly prohibited on NUWCDIVNPT. Electronics with built in Wi-Fi must turn their Wi-Fi signals off prior to coming on board.

2.6 Radio Transmitter Restrictions

2-Way Radios are prohibited on NUWCDIVNPT.

2.7 No Smoking Policy

Smoking is prohibited within and outside of all buildings on installation, except in the designated smoking areas. This applies to existing buildings, buildings under construction and buildings under renovation. Discarding tobacco materials other than into designated tobacco receptacles is considered littering and is subject to fines. If needed, the Government will identify designated smoking areas.

3. ADMINISTRATIVE REQUIREMENTS

3.1 Contact List

Provide a list of contact personnel. The contact list must contain the names of key contractor and subcontractor points of contact, their title, addresses, and telephone number for use in the event of an emergency. Regularly update the contact list as work changes to ensure its current.

3.2 Project Superintendent

Provide a project Superintendent at the work site to implement and manage quality control and to serve as the Site Safety and Health Officer (SSHO). The Project Superintendent is required to attend all planning meetings, perform internal submittal review prior to forwarding to government, and ensure construction is performed in accordance with contract requirements.

3.3 Preconstruction Meeting

After award of the contact but prior to commencement of any work at the site, meet with the Contracting Officer to discuss and develop a mutual understanding relative to the administration of the work to be performed. This meeting will include scheduling, safety concerns, security concerns, environmental concerns, submission of submittals, customer concerns, and any concerns shared by the contractor.

3.4 Work Schedules

Prior to the start of work, prepare and submit to the Contracting Officer a Baseline Construction Schedule. Update the Construction Schedule at a bi-weekly intervals or when the schedule has been revised. Keep the updated schedule current, reflecting actual activity progress and plan for completing the remaining work.

3.5 Temporary Utilities

Provide temporary utilities as required for construction. Materials may be new or used, must be adequate for the required usage, not create unsafe conditions, and not violate applicable codes and standards.

4. SAFETY

4.1 Performance of Work

Comply with EM 385-1-1, NFPA 70, NFPA 70E, NFPA 241, Federal and State OSHA regulations, and other related submittals and activity fire and safety regulations. The most stringent standard prevails.

Personal Protective Equipment (PPE) is governed in all areas by the nature of the work the employee is performing. Use personal hearing protection at all times in designated noise hazardous areas or when performing noise hazardous tasks. Safety glasses must be worn or carried/available on each person. Mandatory PE includes:

a. Hard Hat

b. Long Pants

c. Safety Gasses

d. Appropriate Safety Shoes

4.2 Activity Hazard Analysis (AHA)

The principle purpose of an AHA is to reduce the overall risk of the hazards associated with construction work. Provide an AHA for every operation involving a type of work. Provide an AHA for every operation involving a type of work presenting hazards not experienced in previous project operations or where a new work crew or subcontractor is to preform work.

The analysis must identify and evaluate hazards and outline the proposed methods and techniques for the safe completion of each phase or work. At a minimum, define activity being performed, sequence of work, specific safety and health hazards anticipated (slip or trips, cuts, dust or chips in eyes), control measures (to include personal protective equipment) to eliminate or reduce each hazard to acceptable levels, equipment to be used (hand tools), inspection requirements (list the inspection requirements for the activity to ensure the controls are working, and equipment is inspected to ensure proper operation), training requirements for all involved (any unique training required to make the established controls work) and the competent person in charge of that phase of work.

The AHA shall be continuously reviewed and, when appropriate, modified to the address changing site conditions or operations. The analysis should be used during daily inspections to ensure the implementation and effectiveness of the activity’s safety and health controls. Activity Hazard Analysis shall be updated as necessary to provide an effective response to changing work conditions and activities.

4.3 Accident Reports and Notifications

4.3.1 Accident Report

For recordable injuries and illnesses, and property damage accidents resulting in a least $2,000 in damages, the prime Contractor shall conduct an accident investigation to establish the root cause of the accident, complete the Navy Contractor Significant Incident Report (CSIR) and provide the report to the Contracting Officer within five calendar days of the accident. The Contracting Officer will provide copies of any required or special forms.

4.3.2 Accident Notification

Notify the Contracting Officer as soon as practical, but not later than four hours after any accident meeting the definition of recordable injuries or illnesses or high visibility accidents, property damage equal to or greater than $2,000. Information shall include Contractor name, contract title, type of contract, name of activity, installation or location where accident occurred, date and time of accident, names of personnel injured, and extent of property damage (if any), extent of injury (if known) and brief description of accident (to include Type of construction equipment used, PPE used, etc.). Preserve the conditions and evidence on the accident site until the Government investigation team arrives on site and government investigation is conducted.

4.3.3 Definition of Recordable Injury or Illness

Any work related injury or illness that results in:

(1) Death, regardless of the time between the injury and death, or the length of the illness;

(2) Days away from Work;

(3) Restricted Work;

(4) Transfer to another job;

(5) Medical Treatment beyond first aid;

(6) Loss of consciousness;

(7) A significant injury or illness diagnosed by a physician or other licensed healthcare professional, even if it did not result in (1) through (6) above.

4.3.4 Emergency Medical Treatment

Contractor shall arrange for their own emergency medical treatment. The government has no responsibility to provide emergency medical treatment.

4.3.5 Periodic Inspections

The work site may be inspected periodically for OSHA and Navy violations.

Abatement of violations will be the responsibility of the contractor and/or the Government as determined by the Contracting Officer. The Contractor shall provide assistance to the Safety Office escort and the federal or state OSHA inspector if a complaint is filed. Any fines levied on the Contractor by federal or state OSHA offices die to safety/health violations shall be paid promptly.

If the Contractor fails or refuses to promptly comply with safety requirements, the Contracting Office may issue an order stopping all or part of the work until satisfactory corrective action has been taken. No part of the time lost due to any such stop order shall be made the subject claim for extension of time or for excess costs or damages to the Contractor.

The Safety Office will investigate all complaints or unsafe or unhealthful working conditions received from Contractor’s employees, federal civilian employees or military personnel. The Safety Office will notify the Contracting Officer of the results of such investigations.

5. PROJECT CLOSEOUT

5.1 As-Built Drawings

Provide and maintain one full size print of the contract drawings for As-Built Drawings. At the completion of the work, certify as-built drawings as correct, sign, and submit the As-Built Drawings for Contracting Officer approval.

5.2 Warranty

Provide a Warranty Letter guaranteeing the Contractor’s responsibility to remedy, at the Contractor’s expense, any damage to Government-owned or controlled property when the damage is the result of the Contractors failure to conform to contact requirements or defective equipment, material, or workmanship. Unless noted otherwise elsewhere in this contract, the construction warranty period will begin on the date of the project acceptance and continue for one full year. The contractor shall respond to warranty items within 48 hours of being notified. Please be aware, extended warranties exist on this contract.

6. PRODUCTS

6.1 Standard Products

Provide materials and equipment that are products of manufacturers regularly engaged in the production of such products which are of equal material, design, workmanship. Products shall have been in satisfactory commercial or industrial use for 1 year.

7. EXECUTION

7.1 Installation

Construction of new fully functional Office Modular Office. Construction of Module is to follow instruction as seen on design.

1. Erection of Modular Office

2. Installation of Doors

3. Installation of Acoustical Ceiling

4. Installation of all electrical components

5. Installation of HVAC System

6. Installation of Fire Suppression System

7.2 Cleanup

Remove construction waste debris, waste materials, packaging material and the like from the work sit daily. Any dirt or mud which is tracked into government buildings must be cleaned immediately.

SECTION 01 11 00

SUMMARY OF

WORK

06/19

PART 8 GENERAL

8.1 Project Description

The contractor shall provide all necessary materials, shipping, and delivery to NUWCDIVNPT, for a complete and useable modular QA office at Building 6, as shown on attached NUWCDIVNPT Drawing.

8.2 Location

The materials shall be delivered to the Naval Undersea Warfare Center, in Newport Rhode Island. Approximately as indicated.

SECTION 13 22 00

MODULAR IN-PLANT

OFFICES

12/09

PART 9 GENERAL

9.1 References

References:

EM 385-1-1 (2014) Safety and Health Requirements Manual

UL 67 (2018) (2018; Reprint Jul 2020) UL Standard for Safety Panel boards.

NEMA PB 1 (2011) (2011) Panel boards

NEMA 250 (2020) (2020) Enclosures for Electrical Equipment

UL 50 (2015) UL Standard for Safety Enclosures for Electrical Equipment, Non-Environmental Considerations

ASTM D1535 (2014; R 2018) Standard Practice for Specifying Color

NEMA ANSLG C78.377 (2017) Electric Lamps— Specifications for the Chromaticity of Solid State Lighting Products

UL 924 (2016; Reprint May 2020) UL Standard for Safety Emergency Lighting and Power Equipment.

NFPA 13 (2019; Errata 19-1; Errata 19-2; TIA 19-1;

TIA 19-2; TIA 19-3; TIA 19-4; Errata 19-3;

Errata 20-4; TIA 19-5; TIA 19-6) Standard for the Installation of Sprinkler Systems

NFPA 24 (2022) Standard for the Installation of Private Fire Service Mains and Their Appurtenance

NFPA 70 (2020; ERTA 20-1 2020; ERTA 20-2 2020;

TIA 20-1; TIA 20-2; TIA 20-3; TIA 20-4)

National Electrical Code

NFPA 101 (2021) Life Safety Code

NFPA 241 (2022) Standard for Safeguarding Construction, Alteration, and Demolition Operations

ANSI/ASHRAE 15 & 34 (2013) ANSI/ASHRAE Standard 15-Safety Standard for Refrigeration Systems and ANSI/ASHRAE Standard 34-Designation and Safety Classification of Refrigerants

ASME B31.5-2006 Refrigeration Piping and Heat Transfer Components (ANSI)

ASTM A123/A123M (2017) Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products

ASTM A924/A924M (2020) Standard Specification for General Requirements for Steel Sheet, Metallic-Coated by the Hot-Dip Process

ASTM E84 Surface Burning Characteristics of Building Materials

ASTM A653/A653M (2020) Standard Specification for Steel Sheet, Zinc- Coated (Galvanized) or Zinc-Iron Alloy- Coated (Galvannealed) by the Hot-Dip Process

ASTM A489 (2018; E 2018) Standard Specification for Carbon Steel Eyebolts

ASTM A641/A641M (2019) Standard Specification for Zinc-Coated (Galvanized) Carbon Steel Wire

ASTM C423 (2009a) Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method

ASTM C635/C635M (2017) Standard Specification for Manufacture, Performance, and Testing of Metal Suspension Systems for Acoustical Tile and Lay-In Panel Ceilings

ASTM C636/C636M (2013) Standard Practice for Installation of Metal Ceiling Suspension Systems for Acoustical Tile and Lay-In Panels

ASTM C834 (2017) Standard Specification for Latex Sealants

ASTM E413 (2016) Classification for Rating Sound Insulation

ASTM E795 (2016) Standard Practices for Mounting Test Specimens During Sound Absorption Tests

ASTM E1264 (2019) Acoustical Ceiling Products

ASTM E1414/E1414M (2011a; E 2014) Airborne Sound Attenuation between Rooms Sharing a Common Ceiling Plenum

ASTM E1477 (1998a; R 2017; E 2018) Standard Test Method for Luminous Reflectance Factor of Acoustical Materials by Use of Integrating- Sphere Reflectometers

AWWA C110/A21.10 (2012) Ductile-Iron and Gray-Iron Fittings for Water

AWWA C104/A21.4 (2016) Cement-Mortar Lining for Ductile-Iron Pipe and Fittings for Water

9.2 Erection

Erect modular office units in accordance with manufacturer’s written instructions. Coordinate installation with other trades – electrical, fire protection, and HVAC. Set units level, plumb, and true to line with uniform joints. Support and secure in place by connecting panels and members with recommended fasteners and connection hardware. Erect all components and parts to the following tolerances: Variations from plumb: 1/8 inch maximum variation in 10 ft length or height, noncumulative. Variations in line: offsets in end-to-end or edge-to-edge alignment of consecutive members: 1/8 inch maximum offset in any alignment, noncumulative.

Do not erect members which are observed to be warped, bowed, distorted, deformed, or damaged such as to impair the strength or appearance of the erected modular units. Remove and replace those damaged members or panels.

9.2.1 Wall Panels (Government Provided)

Laminated design consisting of a solid core with a pre-finished interior and exterior surface.

Wall panels shall also conform to the following requirements:

• Wall panels are 3" thick by 10' high.

• Core: expanded polystyrene ASTM E84 Class A fire-resistant, 1PSF density.

• Panel Finish: Interior finish is white vinyl covered hardboard. Exterior finish is white vinyl covered hardboard.

9.2.2 Structural Framework (Government Provided)

Extruded aluminum alloy with clear satin anodized finish.

Standard Panel Connecting Post: 3-piece "non-progressive" design which serves as the connecting device for holding wall panels together. Panel connecting posts shall also serve as a vertical raceway to conceal electrical and data service. A full height Snap-On cover plate shall be provided to allow for easy access without disassembly of the wall system. Connecting posts shall be load-bearing.

Corner Post: 2-piece "non-progressive" design which serves as both a structural member and as the connecting device for wall panels at 90 degree angles.

Non-Progressive Design: Standard panel connecting post and corner post enabling wall panels to be removed or replaced with disassembly of adjacent wall panels.

Wall Starts: 12 gauge steel U-shaped channel to fit flush against existing structure or where two modular panels meet on a perpendicular line. The U-Shaped channel is sided to enable standard panel connectors or corner post to positively connect while enabling panel installation on the adjacent side.

Ceiling Cap: Extruded aluminum provided in pre-cut pre-mitered lengths to fit snugly around the top of all perimeter wall sections eliminating on-site fabrication. An integral vertical fascia shall be included to create a neat, finished appearance.

Partition Cap: Extruded U-shaped aluminum alloy provided in pre-cut, pre-mitered lengths to fit snugly around the top of all partition wall sections eliminating on-site fabrication.

Base Plate: extruded U-shaped aluminum alloy provided in pre-cut, pre-mitered lengths to serve as a leveling surface and guide for installation of wall panels and connecting posts.

9.2.3 Door Assemblies (Government Provided)

Government provided door assemblies are full flush doors, shipped pre-hung in frame, lock set shipped separately for field installation. Doors shall include an integral threshold and stationary door sweep.

Door Leafs: Nominal 3' wide by 7' high, heavy duty aluminum. Swing shall be as indicated on drawing.

Door Frame: Extruded aluminum alloy with clear satin anodized finish with integral stop, threshold and full perimeter rubber bulb gasket.

Door Hardware: Provide door hardware as specified below.

- Hinges: Fully mortised, heavy weight, anti-friction bearing butt hinge.

- Lockets: Industrial grade, lever lockset, capable of accepting a Best core to match NUWC's existing key system.

- Door Sweep: Aluminum extrusion with black vinyl sweep, surface mounted to the bottom of the door leaf.

Vision Lite: Provide factory installed vision lite with 1/4" laminated safety glass and ¼” Omega Style Paneling as indicated.

9.2.4 Window Assemblies (Government Provided)

Window assemblies shall consist of a three-piece system which includes the window frame and wall panel sections to fit above and below to create a full height panel assembly.

Frame: Fixed type, constructed of extruded aluminum alloy with a clear satin anodized finish. Window frames shall be preassembled, including specified factory glazing. Frames shall positively lock into adjoining connecting posts. Fixed window frames shall include removable stops to enable easy replacement of glazing.

Glazing: 1/4" laminated safety glass. Factory installed in frame with full perimeter rubber bulb gasket.

9.2.5 Roof System (Government Provided)

Steel Deck: 18 gauge corrugated B-Deck shall serve as the roof cover and span support for acoustical grid ceiling system and lighting.

Roof Supports: Provide structural I-beam roof supports in locations indicated on drawings to reduce deck spans. I-Beams shall be mechanically fastened to the top of panel connectors on centerlines as required for the span conditions.

Provide columns as shown on drawings for 3-sided modules. Beams and columns shall be sized by the manufacturer.

9.3 Acoustical Ceiling System:

Submit product data for each type of acoustical unit and each type of suspension grid tee section showing texture, finish, and color. Conform acoustical units to ASTM E1264, Class A, and the following requirements:

Ceiling Type

III (non-asbestos mineral fiber with painted finish). Provide Type III Acoustical Ceiling Tiles containing a minimum of 30 percent recycled content. Provide data identifying percentage of recycled content for Type III ceiling tiles. Provide certification of indoor air quality for Type III Ceiling Tiles.

Flame Spread: Class A, 25 or less Pattern, Pattern “D” Fissured

Minimum NRC: 0.8 when tested on mounting Type E-400 of ASTME795.

Nominal Size: 12” by 12” inch

Edge Detail: Square Factory-applied standard finish.

9.3.1 Suspension System

Provide Standard with standard width flange suspension system conforming to ASTM C635/C635M for intermediate-duty systems capable of carrying 12 LBS/LF. Provide surfaces exposed to view of aluminum or steel with a factory-applied, white color baked-enamel finish. Provide wall molding having a flange of not less than 15/16 inch. Provide a suspension system with a maximum deflection of 1/360 of the span length capable of supporting the finished ceiling, light fixtures, air diffusers, and accessories, as shown.

9.3.2 Hangers

Provide hangers and attachment capable of supporting a minimum 300 pound ultimate vertical load without failure of supporting material or attachment.

9.3.3 Wires

Conform wires to ASTM A641/A641M, Class 1.

9.3.4 Eyebolts

Provide eyebolts of weld less, forged-carbon-steel, with a straight-shank in accordance with ASTM A489.Provide minimum 1/4” inch, zinc coated eyebolts.

Conforms eyebolts to ASTM A489.

9.3.5 Installation

Complete and approve mechanical, electrical, and other work above the ceiling line prior to the start of acoustical ceiling installation. Provide acoustical work complete with necessary fastenings, clips, and other accessories required for a complete installation. Do not expose mechanical fastenings in the finished work.

Lay out hangers for each individual room or space. Provide hangers to support framing around beams, ducts, columns, grilles, and other penetrations through ceilings. Keep main runners and carrying channels clear of abutting walls and partitions. Provide at least two main runners for each ceiling span. Wherever required to bypass an object with the hanger wires, install a sub suspension system so that all hanger wires will be plumb.

9.3.6 Suspension System

Install suspension system in accordance with ASTM C636/C636M and as specified herein. Do not suspend hanger wires or other loads from underside of steel decking.

9.3.7 Plumb Hangers

Install hangers plumb and not pressing against insulation covering ducts and pipes. Where lighting fixtures are supported from the suspended ceiling system, provide hangers at a minimum of four hangers per fixture and located not more than 6 inch from each corner of each fixture.

9.3.8 Wall Molding

Provide wall molding where ceilings abut vertical surfaces. Miter corners where wall moldings intersect or install corner caps. Secure wall molding not more than 76 mm 3 inch from ends of each length and not more than 406 mm 16 inch on centers between end fastenings.

9.3.9 Acoustical Units

Install acoustical units in accordance with the approved installation instructions of the manufacturer. Ensure that edges of acoustical units are in close contact with metal supports, with each other, and in true alignment. Arrange acoustical units so that units less than one-half width are minimized. Hold units in exposed-grid system in place with manufacturer's standard hold-down clips, if units weigh less than 1 psf.

9.4 Electrical Components

9.4.1 Electrical Power Panel:

• Provide bolt on type circuit breakers for existing panelboard as indicated on the drawings. Ensure circuits have current rating, number of phases, and number of wires as indicated or specified herein. Ensure each circuit breaker has a short-circuit current rating equal to or greater than the integrated equipment rating indicated, but in no case less than 10,000 amperes symmetrical.

9.4.2 Lighting Fixtures:

LED Lighting Fixtures:

Provide LED light sources that meet the following requirements: a. NEMA ANSLG C78.377. Emit white light.

Provide LED drivers that are electronic, UL Class 1, constant-current type and that comply with the following requirements:

- The combined driver and LED light source system does not exceed the minimum luminaire efficacy values as listed in the luminaire schedule provided.

- Operates at a voltage of 120 volts at 50/60 hertz, with input voltage fluctuations of plus/minus 10 percent.

9.4.3 Exits Signs:

UL 924, NFPA 101. Provide wattage as indicated in the luminaire schedule on project plans. Provide two(2) LED Exit Signs that meet the following criteria:

- Housing constructed of UV-stable painted steel.

- Configured for ceiling mounting.

- 6 inch high, 3/4 inch stroke with red lettering on face of sign with chevrons on either side of lettering to indicate direction.

- Single or double face as indicated in project plans and luminaire schedule.

9.4.4 Emergency Lighting Unit (ELU):

Provide two (2) emergency lighting units (ELUs) completely assembled with wiring and mounting devices, ready for installation at the locations indicated.

Provide in UV-stable painted steel housing as indicated. Emergency lighting units must be rated for 12 volts. Equip units with brown-out sensitive circuit to activate battery when input voltage falls to 75 percent of normal. Equipped with two (2) LED light sources, automatic power failure device, test switch, and pilot light, and fully automatic high/low trickle charger in a self-contained power pack. Battery must be sealed, maintenance free nickel-cadmium type, and must operate unattended for a period of not less than five years. Emergency run time must be a minimum of 90 minutes. LEDs must have a minimum rated life of 10 years.

9.4.5 Receptacles:

Provide general purpose convenience outlets that are specification grade 20A, 120V, Duplex. Identify locations where split receptacles will be used with one receptacle controlled by a separate toggle switch. Provide GFI AFCI protection in accordance with NFPA 70.

9.5 HVAC Components

9.5.1 Ductless Air Conditioning Unit (DCU)

The Air Conditioner system shall be a Ductless split system with Variable Speed Inverter Compressor technology or similar. The system shall consist of a horizontal discharge, single phase outdoor unit, a matched capacity indoor section that shall be equipped with a wired wall mounted controller.

9.5.2 Outdoor Unit:

The outdoor unit shall be compatible with the indoor units. The connected indoor unit shall be of the same capacity as the outdoor unit. The outdoor unit shall be equipped with an electronic control board that interfaces with the indoor unit to perform all necessary operation functions. The outdoor unit shall be capable of cooling operation down to 0°F (-18°C) ambient temperature without additional low ambient controls (optional wind baffle shall be required). The outdoor unit shall be able to operate with a maximum height difference of 100 feet (30 meters) between indoor and outdoor units. System shall operate at up to a maximum refrigerant tubing length of 100 feet (30 meters) between indoor and outdoor units without the need for line size changes, traps or additional oil. The outdoor unit shall be completely factory assembled, piped, and wired. Each unit must be test run at the factory. Outdoor unit sound level shall not exceed 48 dba.

9.5.3 Fan

Shall be furnished with a single DC fan motor. The fan blade(s) shall be of aerodynamic design for quiet operation, and the fan motor bearings shall be permanently lubricated. The outdoor unit shall have horizontal discharge airflow. The fan shall be mounted in front of the coil, pulling air across it from the rear and dispelling it through the front. The fan shall be provided with a raised guard to prevent external contact with moving parts

9.5.4 Coil

The L shaped condenser coil shall be of copper tubing with flat aluminum fins to reduce debris build up and allow maximum airflow. The coil shall be protected with an integral metal guard. Refrigerant flow from the condenser shall be controlled by means of an electronic linear expansion valve (LEV) metering device. The LEV shall be controlled by a microprocessor controlled step motor. All refrigerant lines between outdoor and indoor units shall be of annealed, refrigeration grade copper tubing, ARC Type, meeting ASTM B280 requirements, individually insulated in twin-tube, flexible, closed-cell, CFC-free (ozone depletion potential of zero), elastomeric material for the insulation of refrigerant pipes and tubes with thermal conductivity equal to or better than 0.27 BTU-inch/hour per Sq Ft / °F, a water vapor transmission equal to or better than 0.08 Perm-inch and superior fire ratings such that insulation will not contribute significantly to fire and up to 1” thick insulation shall have a - Flame-Spread Index of less than 25 and a Smoke-development Index of less than 50 as tested by ASTM E 84 and CAN / ULC S-102.

9.5.5 Compressor

The compressor shall be a DC twin-rotor rotary compressor with Variable Speed Inverter Drive Technology. The compressor shall be driven by inverter circuit to control compressor speed. The compressor speed shall dynamically vary to match the room load for significantly increasing the efficiency of the system which shall result in significant energy savings. To prevent liquid from accumulating in the compressor during the off cycle, a minimal amount of current shall be automatically, intermittently applied to the compressor motor windings to maintain sufficient heat to vaporize any refrigerant. No crankcase heater is to be used. The outdoor unit shall have an accumulator and high pressure safety switch. The compressor shall be mounted to avoid the transmission of vibration.

9.5.6 Electrical

The electrical power of the unit shall be 208 volts or 230 volts, single phase, 60 hertz.

The unit shall be capable of satisfactory operation within voltage limits of 187 volts to 253 volts. Power for the indoor unit shall be supplied from the outdoor unit via Mitsubishi Electric A-Control using three (3) fourteen (14) gauge AWG conductors plus ground wire connecting the units. The outdoor unit shall be controlled by the microprocessor located in the indoor unit. The control signal between the indoor unit and the outdoor unit shall be pulse signal 24 volts DC. The unit shall have Pulse Amplitude Modulation circuit to utilize 98% of input power supply. Unit shall be able to provide 100% capacity when operating at 0ºF outdoor air temperature and a wind baffle is used.

9.5.7 Indoor Unit:

The indoor unit shall be factory assembled, wired and tested. Contained within the unit shall be all factory wiring and internal piping, control circuit board and fan motor.

The unit, in conjunction with the wired wall-mounted controller, wireless wall-mounted controller or wireless handheld controller, shall have a self-diagnostic function, 3-minute time delay mechanism, an auto restart function, and a test run switch. Indoor unit and refrigerant pipes shall be purged with dry nitrogen before shipment from the factory.

9.5.8 Fan:

The indoor unit fan shall be high performance, double inlet, forward curve, direct drive sirocco fan with a single motor. The fans shall be statically and dynamically balanced and run on a motor with permanently lubricated bearings. The indoor fan shall consist of three (3) speeds: Low, Mid, and Hi and Auto. The fan shall have a selectable Auto fan setting that will adjust the fan speed based on the difference between controller set-point and space temperature.

9.5.9 Vane:

There shall be a motorized horizontal vane to automatically direct air flow in a horizontal and downward direction for uniform air distribution. The horizontal vane shall significantly decrease downward air resistance for lower sound levels, and shall close the outlet port when operation is stopped. There shall also be a set of vertical vanes to provide horizontal swing airflow movement.

9.5.10 Filter:

Return air shall be filtered by means of an easily removable washable filter.

9.5.11 Coil:

The evaporator coil shall be of nonferrous construction with pre-coated aluminum strake fins on copper tubing. The multi-angled heat exchanger shall have a modified fin shape that reduces air resistance for a smoother, quieter airflow. All tube joints shall be brazed with PhosCopper or silver alloy. The coils shall be pressure tested at the factory. A condensate pan and drain shall be provided under the coil. A drain pan level switch (DPLS1), designed to connect to the control board, shall be provided, and installed on the condensate pan to prevent condensate from overflowing.

9.5.12 Electrical:

The electrical power of the unit shall be 208 volts or 230 volts, 1 phase, 60 hertz. The system shall be capable of satisfactory operation within voltage limits of 187 volts to 253 volts. The power to the indoor unit shall be supplied from the outdoor unit, using the Mitsubishi Electric A-Control system. For A-Control, a three (3) conductor AWG- 14 wire with ground shall provide power feed and bi-directional control transmission between the outdoor and indoor units.

9.5.13 System Control:

The control system shall consist of a minimum of two (2) microprocessors, one on each indoor and outdoor unit, interconnected by a single non-polar two-wire cable. The microprocessor located in the indoor unit shall have the capability of monitoring return air temperature and indoor coil temperature, receiving and processing commands from a wireless or wired controller, providing emergency operation and controlling the outdoor unit. The control signal between the indoor and outdoor unit shall be pulse signal 24 volts DC. Indoor units shall have the ability to control supplemental heat via connector CN152 and a 12 VDC output.

9.5.14 Remote Controllers:

All remote controllers need to be ordered separately from the unit. The Wired Remote Controller shall be approximately 5” x 5” in size and white in color with a light-green LCD display. The controller shall consist of an On/Off button, Increase/Decrease Set Temperature buttons, a Cool/Auto/Fan/Dry mode selector, a Timer Menu button, a Timer On/Off button, Set Time buttons, a Fan Speed selector, a Ventilation button, a Test Run button, and a Check Mode button. The controller shall have a built-in temperature sensor. Temperature shall be displayed in either Fahrenheit (°F) or Celsius (°C), and Temperature changes shall be by increments of 1°F (0.5°C). The control voltage from the wired controller to the indoor unit shall be 12/24 volts, DC. Field wiring shall run directly from the indoor unit to the wall mounted controller with no splices.

9.5.15 Refrigerant Piping:

Provide refrigerant piping, valves, fittings, and accessories in accordance with ASHRAE 15 & 34 and ASME B31.5, except as specified herein. Refrigerant piping, and equipment must be compatible with the fluids used and capable of withstanding the pressures temperatures of the service. Refrigerant piping, valves, and accessories used for refrigerant service must be cleaned, dehydrated, and sealed capped prior to shipment from the manufacturer's plant. Submit drawings, at least 5 weeks prior to beginning construction, provided in adequate detail to demonstrate compliance with contract requirements. Drawings must consist of: Piping layouts which identify all valves and fittings. Plans and elevations which identify clearances required for maintenance and operation.

Pipe Insulation Material and Thickness

Pipe insulation materials must be as listed in Table 1 and must meet or exceed the requirements of ASHRAE 90.1 - IP.

TABLE 1

Insulation Material for Piping

Service Material Specification Type Class VR/VB

Req'd Refrigerant and Condensate Drain Located Inside Building

Cellular Glass ASTM C552 II 2 Yes

Flexible Elastomeric Cellular ASTM C534/C534M I Yes

Note: VR/VB = Vapor Retarder/Vapor Barrier

TABLE 2

Piping Insulation Thickness (inch)

Service

Material Tube And Pipe Size (inch)

<1 1-<1.5 1.5-<4 4-<8 > or = >8

Refrigerant and Condensate Drain Located Inside Building

Cellular Glass 1.5 1.5 1.5 1.5 1.5

Flexible Elastomeric Cellular 1 1 1 N/A N/A

Aboveground Cold Piping:

The following cold piping for minus 30 to plus 60 degrees F, shall be insulated in accordance with Table 2.

Insulation Material and Thickness:

Insulation thickness for cold pipelines shall be determined using Table 2.

Factory or Field applied Jacket: Insulation shall be covered with a factory applied vapor retarder jacket/vapor barrier or field applied seal welded PVC jacket or greater than 3 ply laminated self-adhesive (minimum 2 mils adhesive, 3 mils embossed) vapor barrier/weatherproofing jacket - less than 0.0000 permeability, standard grade, sliver, white, black and embossed for use with Mineral Fiber, Cellular Glass, and Phenolic Foam Insulated Pipe. The aluminum jacket or greater than 3ply vapor barrier/weatherproofing self-adhesive (minimum 2 mils adhesive, 3 mils embossed) product, less than 0.0000 permeability, standard grade, embossed silver, White & Black, shall be installed as specified for piping exposed to weather, except sealing of the laps of the aluminum jacket is not required.

Longitudinal Laps of the Jacket Material:

Overlap not less than 1-1/2 inches. Provide butt strips 3 inches wide for circumferential joints.

Laps and Butt Strips:

Secure with adhesive and staple on 4 inch centers if not factory self-sealing. If staples are used, seal in accordance with paragraph STAPLES below. Note that staples are not required with cellular glass systems.

9.5.16 Metal Ductwork:

Provide metal ductwork construction, including all fittings and components that complies with SMACNA 1966, as supplemented and modified by this specification.

Ductwork shall be constructed meeting the requirements for the duct system static pressure.

Provide radius type elbows with a centerline radius of 1.5 times the width or diameter of the duct where space permits. Otherwise, elbows having a minimum radius equal to the width or diameter of the duct or square elbows with factory fabricated turning vanes are allowed.

Provide ductwork that meets the requirements of Seal Class A.

Provide sealants that conform to fire hazard classification specified and are suitable for the range of air distribution and ambient temperatures to which it is exposed. Do not use pressure sensitive tape as a sealant.

Make spiral lock seam duct, and flat oval with duct sealant and lock with not less than 3 equally spaced drive screws or other approved methods indicated in SMACNA 1966. Apply the sealant to the exposed male part of the fitting collar so that the sealer is on the inside of the joint and fully protected by the metal of the duct fitting. Apply one brush coat of the sealant over the outside of the joint to at least 2 inch band width covering all screw heads and joint gap. Dents in the male portion of the slip fitting collar are not acceptable. Fabricate outdoor air intake ducts and plenums with watertight soldered or brazed joints and seams.

9.5.17 Installation:

DCU System:

Installation of each DCU system including equipment, materials, installation, workmanship, fabrication, assembly, erection, examination, inspection, and testing, shall be in accordance with ASME B31.1, ASME B31.5, NFPA 70, as modified and supplemented by the requirements of this section and the DCU manufacturer's recommendations.

Installation Instructions:

Provide a manufacturer's installation manual for each type of DCU. Upon completion and before final acceptance of work, test each DCU subsystem in service to demonstrate compliance with the contract requirements, including field testing specified below.

Adjust controls and balance systems prior to final acceptance of completed systems.

Test controls through every cycle of operation. Test safety controls to demonstrate performance of required function. Correct defects in work provided by Contractor and repeat tests. Furnish steam, fuel, water, electricity, instruments, connecting devices, and personnel for tests. Clean equipment and piping. Prior to commencement of field testing, remove all filters and provide new filters. Furnish a factory trained field test representative authorized by the DCU manufacturer to oversee the complete execution of the field testing. This test representative shall also review, approve, and sign the completed field test report. Signatures shall be accompanied by the person's name typed.

9.6 Fire Suppression

9.6.1 Wet Pipe Suppression:

Provide wet pipe sprinkler system in areas indicated on the drawings. Except as modified herein, the system must meet the requirements of NFPA 13. Pipe sizes which are not indicated on the Contract drawings must be determined by hydraulic calculations if contractor deems it necessary.

9.6.2 Steel Pipe:

Pipe must comply with NFPA 24. Pipe shall be black steel. Steel piping shall be Schedule 40 for sizes less than 2 and schedule 10 for sizes 2 inches and greater.

Fittings into which sprinklers, sprinkler riser nipples, or drop nipples are threaded shall be welded, threaded, or grooved-end type. Plain-end fittings with mechanical couplings, fittings that use steel gripping devices to bite into the pipe and segmented welded fittings shall not be permitted. Rubber gasketed grooved-end pipe and fittings with mechanical couplings shall be permitted in pipe sizes 1.5 inches and larger.

Fittings, mechanical couplings, and rubber gaskets shall be supplied by the same manufacturer. Steel piping with wall thickness less than Schedule 30 shall not be threaded. Side outlet tees using rubber gasketed fittings shall be permitted and be full bodied and wrap completely around the pipe. Sprinkler pipe and fittings shall be metal.

Roll grooving of galvanized pipe is prohibited.

9.6.3 Fittings and Gaskets:

Fittings must be ductile-iron conforming to AWWA C110/A21.10 with cement mortar lining conforming to AWWA C104/A21.4. Gaskets must be suitable in design and size for the pipe with which such gaskets are to be used.

9.6.4 Sprinklers:

Sprinklers must comply with UL 199 and NFPA 13. Sprinklers with internal O-rings are not acceptable. Sprinklers in high heat areas including attic spaces or in close proximity to unit heaters must have temperature classification in accordance with NFPA 13. Extended coverage sprinklers are permitted for loading docks, residential occupancies and high-piled storage applications only.

9.6.5 Installation:

The installation must be in accordance with the applicable provisions of NFPA 13, NFPA 24 and publications referenced therein. Locate sprinklers in a consistent pattern with ceiling grid, lights, and air supply diffusers. Install sprinkler system over and under ducts, piping and platforms when such equipment can negatively affect or disrupt the sprinkler discharge pattern and coverage. Piping offsets, fittings, and other accessories required must be furnished to provide a complete installation and to eliminate interference with other construction. Wherever the contractor's work interconnects with work of other trades the Contractor must coordinate with other Contractors to insure all Contractors have the information necessary so that they may properly install all necessary connections and equipment. Identify all work items needing access (dampers and similar equipment) that are concealed above hung ceilings by permanent color coded pins/tabs in the ceiling directly below the item.

Provide required supports and hangers for piping, conduit, and equipment so that loading will not exceed allowable loadings of structure. Submittal of a bid must be a deemed representation that the contractor submitting such bid has ascertained allowable loadings and has included in his estimates the costs associated in furnishing required supports.

9.7 Flooring

Finish flooring surface shall be Vinyl Composition Tile. Color to be white marble or closest equivalent.

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