Attachment 001 659-24-902_Salisbury VAMC Design and Construction Manual.pdf
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- C223--Replace Air Handling Units Federal contract opportunity
- Solicitation number
- 36C24624R0042
About this file
This document is a request for qualifications for architect-engineer services related to replacing air handling units at the Salisbury Veterans Affairs Medical Center in North Carolina. The Department of Veterans Affairs seeks to award a firm-fixed price contract for schematic design, design development, construction documents, technical specifications, and construction period services. Interested service-disabled veteran-owned small businesses must submit Standard Form 330 qualifications packages by March 1, 2024. The projected award date for the architect-engineer contract is July 8, 2024, with a construction award to follow. The scope of work involves replacing nine air handling units serving several medical departments, with phasing to maintain hospital operations. Qualifications will be evaluated on specialized experience, professional qualifications, capacity, past performance, local knowledge, location, and experience with construction period services.
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pg. 1
Salisbury VAMC Design and Construction Manual 11/19/2020
Note: This is a guide for designers and contractors only to understand Salisbury VAMC guidance/ preferences. Contents shall not be used in lieu of specifications as part of the Designer’s contract documents but should be used to inform the contract documents.
1. General Conditions
a. 01 45 29 Testing Laboratory Services retained by General Contractor.
b. Mandatory Site Visits (in contract)
2. General Requirements Section: Submittals, CO’s, Schedules, Shop drawings, RFI’s and product data submittals shall be transmitted through a Construction Document Management System using Submittal Exchange or an approved equal (a web based services designed specifically for transmitting and tracking submittals, Pay Applications, photographs, RFI’s, drawings, and other documents between construction team members. Contractor is to manage site but the VA shall own. All information contained within the Electronic Construction Document and Construction Administration Management System shall be transferred to DVD(S).
3. COORDINATION/LAYOUT AND AS-BUILT DRAWINGS
A. Contractor-prepared coordination/layout drawings submitted by Contractor to VA to demonstrate:
1. The coordination of methods, materials, equipment, systems, plans, or sequence the
Contractor proposes to use for the installation of different components.
2. Conflicts between the contract documents and as-built conditions.
3. The coordination required for installation of HVAC systems, sprinkler systems, wall framing, conduit, medical equipment supports, structural changes, gas lines, etc.
4. The coordination required for installation of Products and materials Fabricated by separate entities.
5. The relationship of components shown on separate Shop Drawings or Submittals, when coordination among these components is required.
6. It is the responsibility of the Contractor to assign space priorities and lay-out and route m/e/p/fp/structural systems so they will fit efficiently in the allotted spaces and allow for convenient and code-conforming access to all valves, sprinkler lines, mechanical equipment, dampers and other devices.
B. The A/E shall include a note and depict on the demolition drawings areas where hard ceilings exist outside construction limits in which access panel are required to be installed to access demolition of plumbing and other infrastructure. This Includes adding the spec section 083113 to the spec book.
1.5 PROTECTION OF ENVIRONMENTAL RESOURCES
F. Intent: Execute work to interfere as little as possible with normal functioning of Medical Center as a whole. Use of equipment and tools that transmit vibrations and noises through the building
pg. 2 structure is not permitted in buildings that are occupied during construction, except as permitted by Contracting Officer Representative (COR).
1. Interior Work: Perform construction activities involving repetitive, high-level impact noise only between 8:00 a.m. and 6:00 p.m. unless otherwise permitted by the Contracting Officer Representative.
a. Construction noise just outside the construction area shall not exceed the following dB limitations:
<70 dB unlimited 70 – 80 dB 30 Minutes per hour 80 – 85 dB 15 Minutes per hour
2. Exterior Work: Provide sound-deadening devices on equipment and take noise abatement measures that are necessary to comply with the requirements of this contract, consisting of, but not limited to, the following:
a. Maintain maximum permissible construction equipment noise levels from exterior earthmoving equipment, tools, and vehicles between 75 and 80 dB. Pile drivers shall not exceed 95 dB.
b. Use shields or other physical barriers as required to restrict noise transmission.
c. Sound mitigation measures:
Soundproof housings or enclosures.
Use efficient silencers on equipment air intakes.
Well Maintained exhaust mufflers on internal combustion Line hoppers and storage bins with sound deadening material.
Conduct truck loading, unloading, and hauling operations so that noise is kept to a minimum.
3. Sound Measurement: Measure sound level for noise exposure due to the construction at least once every working day while work is being performed above 70 dB(A) noise level.
a. Interior: Measure noise exposure just outside the construction barrier.
b. Exterior: Measure noise exposure 50 feet from the noise source. To minimize the effect of reflective sound waves at buildings, take measurements at three to six feet in front of any building face.
c. Equipment: Measure the sound levels on the A weighing network of a General-Purpose sound level meter at slow response.
d. Reporting: Submit the recorded information in the daily report to the Contracting Officer Representative noting any problems and the alternatives for mitigating actions.
3. Existing Conditions
a. Contractor to have heat detectors during demo for fire safety.
b. New work – conduit and cables above ceiling – shall be installed neatly and as close to the roof deck as possible and not laid atop/ supported by the ceiling grid to allow room for future work. Provide cable trays for loose wiring not in conduits.
pg. 3
c. Demolition – Wire, piping, ducts, etc. no longer in use due to replacement with new work shall be removed to allow for more room above ceiling and to avoid future confusion unless directed/ specified otherwise.
d. Preventive Maintenance: For renovations; need list of equipment identified for removal/ disposal and, for all work, a schedule of new equipment to the PM Manager.
1) What is added and removed/ demolished will be provided on an excel spreadsheet for the SBYVAMC PM Manager. The following example is, at a minimum, the information required:
# Manufacturer Model Number Serial Number
Equipment Nomenclature CMR
Asset Value Location
AHU-
1 York
XTI-063X117-
JAQA046A CLDM XT0143 AIR HANDLER A202-20
AHU-
2 York
XTI-039X060-
EAJA046A CDLM XT0142 AIR HANDLER A202-20
ERM-
1 York
XTI-066X120-
EANA046A
CLDLM
XT0144
ENERGY
RECOVERY
MODULE A202-20
FCU-
1 JC FHP 6MDM001263 FAN COIL UNIT C101-20
4. Concrete: (Amendments to the TIL spec)
1.10 APPLICABLE PUBLICATIONS, D ADD:
1. ASTM E 1745: Standard Specification for Water Vapor Retarders Used in Contact with Soil or Granular Fill under Concrete Slabs.
2. ASTM E 1643: Standard Practice for Selection, Design, Installation, and Inspection of Water Vapor Retarders Used in Contact with Earth or Granular Fill Under Concrete Slabs.
3. ASTM F 710-11 Standard Practice for Preparing Concrete Floors to Receive Resilient Flooring.
2.2 MATERIALS:
G. Admixtures: Add – Porosity Inhibiting Admixture A US based manufacturer with not less than Ten (10) years’ experience in the actual manufacture of a concrete enhancement technology admixture, which can provide qualified independent test reports indicating compliance with specified project performance requirements. Selected product manufacturer must have certification of compliance with ASTM C494 /C494M testing protocols from an independent AASHTO approved laboratory. provide an on-site, contracted independent ACI certified technical representation for each day’s placement capable of sampling a minimum of one random cylinder per day’s concrete placement for independent daily ASTM 5084 testing.
Life of the Concrete Warranty.
pg. 4
H. Vapor Barrier: Add - ASTM 1745 vapor retarder
3.3 VAPOR BARRIER: Add:
A. Interior concrete slab on grade shall be placed on an ASTM E 1745 compliant material, with a maximum permeance of 0.1 US Perms and a minimum thickness of 0.01”. Place continuous vapor barrier directly under slab
1. Place 100 mm (4 inches) of fine granular fill over the vapor barrier to act as a blotter for concrete slab.
5. Masonry
a. Match existing mortar on all exterior brick - Brixment Masonry Cement Type S, Flamingo Color: C-380 – White Oak (this may exclude B8 and B20)
6. Metals
7. Wood, Plastics, and Composites
8. Thermal and Moisture Protection
a. Use of liquid applied seamless waterproofing membrane for floor/wall tile installations in wet areas – Laticrete Hydro Ban
9. Openings A/E will retain an Architectural Hardware Consultant shall be employed to assist in specification writing and review for doors and hardware.
a. Spec Add’s/ notes (Amendments to the TIL spec):
1.05 SUBMITTALS
A. See Section 01 3000 - Administrative Requirements, for submittal procedures.
B. Product Data: Manufacturer's catalog literature for each type of hardware, marked to clearly show products to be furnished for this project.
C. Hardware Schedule is to have the following:
1. Detailed listing of each item of hardware to be installed on each door using the format prescribed by the Door Hardware Institute (DHI).
2. Use door numbering scheme as given in the Contract Documents.
3. Identify electrically operated items and including power requirements. All electrified/access-controlled openings shall have a written description of the intended operating function for each hardware set.
4. Items to be supplied by other vendors, such as the aluminum storefront supplier or access control contractor, shall be identified for clarification.
D. Manufacturer's Installation Instructions: Indicate special procedures, perimeter conditions requiring special attention.
E. Maintenance Data: Include data on operating hardware, lubrication requirements, and inspection procedures related to preventative maintenance.
pg. 5
F. Warranty: Submit manufacturer's warranty and ensure that forms have been completed in Owner's name and registered with manufacturer.
1.06 QUALITY ASSURANCE
A. Manufacturer Qualifications: Company specializing in manufacturing the products specified in this section with minimum five years of documented experience.
B. Hardware Supplier Qualifications: Company specializing in supplying commercial door hardware with 5 years of experience and are a Factory Authorized distributor of the products which are supplied.
C. Hardware Supplier: Staff shall include or have access to an Architectural Hardware Consultant (AHC) to assist in the work of this section. The hardware schedule that is submitted to the contractor for approval shall have the AHC’s official stamp and signature on it showing that it was reviewed and meets all required functions and meet all applicable codes and standards.
2.12 ACCESS CONTROLS
A. Coordination: Coordinate hardware with access control system devices as specified in Section 28 1300 and the electrical contractor for low voltage wiring as specified in Section 26.
B. Hardware supplier shall be readily available to meet with Access Control integrator and the electrical contractor to alleviate any potential conflicts or issues that may arise during construction. It shall be the responsibility of the hardware supplier to ensure that the finish hardware provided will function with the access control provider’s hardware and the VA’s LENEL access control system.
3.02 INSTALLATION
A. Install hardware in accordance with manufacturer's instructions and all applicable fire and life safety codes.
B. Use templates provided by hardware item’s manufacturer.
C. Install hardware on fire-rated doors and frames in accordance with code and NFPA 80.
D. Mounting heights for hardware from finished floor to center line of hardware item.
1. For steel doors and frames: Comply with DHI "Recommended Locations for Architectural Hardware for Steel Doors and Frames."
2. For Wood Doors: Comply with DHI "Recommended Locations for Architectural Hardware for Wood Flush Doors."
E. Door hardware orientation (Paddle hardware): both handles be mounted in the down position.
b. Other:
1) Cabinet door style – Prairie Home; Wood Type – Maple ; Stain Finish – Barnwood – Adaptivelivingstore.com
2) The building standard for locks and panic devices is Corbin Russwin with the LWA lever.
3) Corbin Russwin, Schlage or Sargent are the preferred manufactures. (We can’t specify what manufacturers are allowed, this is just a preference. This is to minimize the replacement locks and parts we must maintain a stock for.)
4) All SFIC cores will be supplied by the VA.
pg. 6
5) Schlage mortise housings are not permitted. The cam is attached with only a single screw.
6) Corner mounted flush bolts on wooden doors are not allowed. All flush-bolts are to be constant latching and mortised into the door.
7) Continuous hinges are to be used on all high traffic areas.
8) When a continuous hinge is called for Stainless steel is preferred in all patient areas, but aluminum is acceptable in office areas and exterior applications.
9) All weather strip/smoke seals are to be mounted by screws. No adhesive gaskets on the stop of the frame.
10) All double doors that have an astragal and closers will also have a coordinator to ensure proper closing sequence.
11) Cores for wooden doors are to be engineered composite lumber or stave lumber. No particle board.
12) All hollow metal frames are to have a 4” hospital stop in all areas for sanitary purposes.
This is not a requirement where it conflicts with fire ratings.
10. Finishes: Finish type selections should be determined by the “Door, Finishes, and Hardware Schedule” from the TIL. Intent is to limit our attic stock to fewer, most often used products.
a. Paint:
1) Pre-Catalyzed water-borne acrylic epoxy w/ Eggshell finish applied in general use areas.
I.e. Corridors, Offices, Exam Rooms – ICI Pitt-Glaze WB1, Sherwin Williams Pro Industrial K45W51
2) Water based Alkyd Urethane w/ semi-gloss finish applied to door frames and metal doors – Sherwin Williams Pro Industrial Water based Alkyd Urethane
3) High Build Wall System applied in areas where TIL specifies special coating – Sherwin Williams SANIGLAZE
4) Hung ceilings are preferred to hard ceilings except in areas mandated to have hard ceilings (OR’s, procedure rooms, SPS, etc.).
5) Ceiling tile: Intent is to limit attic stock/ types of ceiling tile. CertainTeed HHF157 is preferred; alternate is Armstrong 1911A. 2’ x 2’ ceiling grids are preferred.
b. Corners: No tile cove/bullnose/corners. Metal Profiles such as Schluter should be used instead for cleanliness, ease of install, and protection of tile edges.
1) Facility Standard: Metal Profiles, MP
2) MP1 – Schluter Systems, Cove Shaped Profile, DILEX-AHK, Satin Nickel Anodized
Aluminum, for 3/8” thick tile, AHK 1S 100 AT
3) MP2 – Schluter Systems, Wall Profile, JOLLY, Satin Nickel Anodized Aluminum, for 5/16” thick tile, A 80 AT
4) MP3 – Schluter System, Wall Profile, QUADEC, Satin Nickel Anodized Aluminum, for
5/16” thick tile, Q 80 AT
c. Resilient Sheet Flooring/Welded Sheet Flooring with integrated cove should have metal cove cap.
d. We are not approved to use VCT in our facilities.
1) Facility Standard: Metal Cove Cap
2) Shane going to get this info to us…
pg. 7
e. Casework:
1) No built-in pedestals (under counter personal storage drawers) to allow for flexibility in storage and seating placement.
2) Substrate for countertops (regardless of finished material) should be continuous across underside to allow for installation of computer management equipment such as CPU holders and Keyboard Trays.
3) In clean areas (i.e. Medication Rooms, Ante Rooms, etc.), if casework is included, it should be wall mounted/off the floor to allow rooms to be completely cleaned and to protect casework from any flooding issues.
4) Sink base should have ADA apron versus cabinet base.
5) Patient care rooms where drawers must have removable plastic drawer liners.
6) Upper cabinets need slope tops if not built to ceiling.
7) No self-edge laminate on all counters, doors and drawers use Matching PVC edge banding
8) On the front of receptions, check in stations, nurse stations - if laminate is specified, it needs to be FRL - Fiber Reinforced Laminate for durability.
f. Countertops: Solid Surface is preferred for durability and cleanliness. Require contractor to drill grommets, size 2 3/8”, approximately 1 grommet drilled per every 4’. Small surfaces need at least 1 drilled grommet.
g. Sink counters: Solid Surface counter with undermounted integral sink
h. Doors: PREFERRED: Rotary Cut Maple, clear finish. ALTERNATE: Rotary Cut Birch, clear finish.
i. Closets: IT Closets, Electrical Closets should have Sealed Concrete, SCONC.
j. Texture: Any specified hard floors should have smooth or lightly textured embossments.
k. Rubber Cove Base: facility standards should be used. 6” base should be used in corridors and high traffic areas. 4” can be used for all other locations.
1) Facility Standard: Rubber Cove Base, RB
2) Johnsonite Cove Base, Moonrock 29, 4” or 6”, Traditional with Toe.
3) Johnsonite Cove Base, Fawn 80, 4” or 6”, Traditional with Toe
4) Johnsonite Cove Base, Wetlands 150, 4” or 6”, Traditional with Toe
l. Entrance Carpet: All entrances/vestibules should have walk-off carpet to provide a safe entry surface and reduce the amount of debris tracked into the building.
1) Facility Standard: Walk-Off Carpet, CPT
2) Shaw Contract, Path Tile 5T034, color Portabella 34761
m. Handrails: InPro Corp. 900 series with wood grain plastic cover, matching plastic end caps 909 Stainless steel mounting bracket
n. Wall guard: InPro Corp. 1500 series 5” high with non-wood grain plastic cover. Plastic end caps
o. Door kick plates to be stainless steel.
p. Solid surface to be used on window sills.
11. Specialties
pg. 8
a. Remove Signage from Construction Contracts.
b. Toilet Partitions: to be floor mounted.
1) Scranton Products: Hiny Hiders series, full privacy/continuous hinge, strike TBD (either continuous or 3” stainless steel emergency access strike with be used), stainless steel shoe, stainless steel latch. Metallic Color Collection, Hammered finish.
c. 24” Wheelchair Vanity Cabinet, Premium Series
d. Lockers – Metal
1) 2-Tier 12”W x18”D x 78”H – Each Individual Unit is 36” High they will consist of three units connected from the factory - Penco part # A1030
2) 6-Tier 12”W x 12”D x 78”H Each Individual unit is 12”High – Three units connected from the factory - Penco part # A1032
3) Standard lockers will have a sloped top and enclosed base for cleaning
4) Lockers will have location for individuals to bring their personal pad locks.
5) COLORS OF LOCKERS TBD PER PROJECT
e. Remove Cubicle Curtains from Construction Contracts.
f. Cubicle Curtain TRACK should remain in Construction Contracts. The preferred cubicle curtain track layout (also recommended by the TIL) is to surround the door swing space, leaving more of the room open for equipment, furniture, and movement.
g. Facility Standard: Cubicle Curtain Track and Carriers
1) InPro, Clickeze Privacy Systems, Ultracube, white baked acrylic finish
2) InPro, Clickese Privacy Systems, Ball & Chain chain carrier CE9038
3) InPro, Clickese Privacy Systems, Solid Hook carrier CE9025 (Only for Patient Areas where noise is an issue.)
h. Remove Marker Boards/Tack Boards from Construction Contracts.
i. Window Coverings – For cleanliness and energy efficiency, any included window coverings should be roll up solar shades. No blinds whatsoever unless incorporated between the glass.
1) Facility Standard: Cubicle Curtain Track
2) Mermet 4% S-Screen, color Jute
j. Headwalls: http://www.amico.com/products/interiorsmedical-grade-casework/nulook/nulook-refresh-construction-free-headwalls Headwall part number: (M/N: FW96SK-RC-GEN-P)
k. Fire Extinguisher Mounting Height (no greater than 60" AFF for 40 lb or less): top of the extinguisher cabinet will be no more than 5 feet off of the ground.
12. Equipment
a. Ensure equipment drawings/cut sheets are submitted to COR, incl:
1) Wireless infrastructure
2) Facility projects should include wireless assessment and ensure infrastructure is pulled based off that assessment
3) Address additional stand-alone network systems now (or mention up front during design meetings so services or owners can plan accordingly)
pg. 9
4) Get Well Network
5) Philips Patient Monitoring
6) VGIA
7) Aethon
b. Med Gas requirements:
1) Med gas connections – ensure we are moving towards standardizing for wall outlets – Chemetron Quick Connects/ medical gas fittings
c. Ceiling lifts: Horcher/Barrier Free Lifts Cecil Rider-President Cecil.Rider@BarrierFreeLifts.com Shane Beylotte shane.beylotte@barrierfreelifts.com Tom Fitzgerald (Sales) tom.fitzgerald@barrierfreelifts.com
13. Furnishings
a. Provided by Interior Design
14. Special Construction
15. Conveying Equipment
21. Fire Suppression
a. Provide sidewall sprinklers in patient rooms with lifts.
b. The use of the “Small Room Rule” will not apply to patient rooms and minimum of two heads will be used to ensure full sprinkler coverage for protection of patients.
22. Plumbing
a. ADA Bowl Vanity Sink Top; Thickness – 5/8”; Sink Top Length; 25”; Sink Top Color –
Dorian; Sink Top Finish – Glossy; Bowl Color – Iceberg; Bowl Finish – Matte; Faucet Hole Spacing – Single Hole Centered; Bowl Location – Center – Adaptivelivingstore.com
b. All Faucets – Touch-free, programmable faucet w/ above deck electronics; Concealed internal temperature control mixer – Chicago Faucets 116.213.AB.1
c. PVC shall not be specified for hydronic piping as temperatures are too high. Copper or steel should be clearly listed for Heating Hot Water in the contract documents. Section
23 21 13, HYDRONIC PIPING.
d. Flush valves – standardized fixtures (TYPE?)
e. Automatic Faucets: Programable Chicago Auto faucets that work with the Commander software.
f. Showers: Shower floors shall be recessed to accommodate slope to floor drain and to avoid water overflowing to remainder to toilet room. In renovations, designers shall confirm depth of topping slab (above structural concrete) to facilitate proper removal of material and execution of this intent by the contractor.
g. Floor Drains/ Clean outs: Preferred product is Zurn “DECK PLATE DRAINAGE/CLEANOUT SERIES” closely following manufacturer’s installation instructions.
23. HVAC
pg. 10
a. Spec Add’s/ notes (Amendments to the TIL spec):
PART 1 GENERAL
1.1 MECHANICAL DESIGNER:
A) Design standards published by American Institute of Architecture (AIA), American Society of Heating Refrigeration and Air Conditioning Engineers (ASHRAE) shall be met or exceeded.
(1) Major energy consuming systems and equipment shall be specified and purchased based on Life Cycle Cost Analysis.
Careful evaluation of energy conservation measures shall begin early in the design phase and continue throughout the design process.
(2) Economizer Cycle that allows the use of outdoor air for free cooling during the winter and intermediate seasons without the use of mechanical refrigeration equipment. The Designer shall provide heat recovery for all systems using 100 percent outdoor air. All mechanical systems shall be controlled by a direct connection to FM Building Automation System as applicable.
(3) Three phase electric motors for mechanical equipment shall be specified to be Premium Efficiency.
(4) The Designer shall use variable volume air handling systems and variable volume pumping to optimize energy efficiency. Fans and pumps shall be selected with the highest efficiency available. Wire to water efficiency shall be evaluated for pumps prior to making the final selection.
(5) The thickness of insulation for chilled water, hot water, steam, and condensate shall be geared toward conserving energy.
Insulation thickness shall be selected for optimum cost versus/ efficiency. Economic evaluation is desirable. Not less than 2” wall
1.2 OWNER INTENT
A) HVAC Contract shall include:
(1) Domestic water heating equipment serviced by steam or heating-hot water, including all heating connections and controls. Cold water supply to this equipment and domestic hot water from this equipment, including connections and valves, shall be in the Plumbing Contract.
(2) Refrigeration and cold storage systems having capacity 15 tons and greater capacity. Systems of less than 15 tons may be placed in the General Contract.
B) Plumbing Contract shall include:
(1) Gas piping systems, beginning with connections to piping provided by the gas utility or provider, to and including the connection with gas appliances or outlets. Where coordination with a gas utility or provider is required, such as in arranging for gas services to a building, coordination shall be through the Plumbing Contractor.
pg. 11
(2) Domestic water supply and sanitary sewer systems associated with buildings, from and including connection to existing mains, including provision of water meters, backflow preventers, vaults and manholes.
(3) Interior roof drainage piping systems, beginning with connections to roof drains fixtures to the point of disposition, five feet outside the building. Roof drains shall be specified by the Architect and provided in the General Contract.
1.3 DIVISION OF WORK
(1) Specific work to be done under Division 26 is hereinafter listed or described. All other work necessary for the operation of Division 22 and 23 equipment shall be performed under Division 22 and 23.
(a) All relays, actuators, timers, seven-day clocks, alternators, pressure, vacuum, float, flow, pneumatic-electric, and electric-pneumatic switches, aquastats, freezestats, line and low voltage thermostats, thermals, remote selector switches, remote push-button stations, emergency break-glass stations, interlocking, disconnect switches beyond termination point, and other appurtenances associated with equipment under Division 22 and 23 shall be furnished, installed and wired under Division 22 and 23.
(b) All wiring required for controls and instrumentation not indicated on the drawings shall be furnished and installed by Division 22 and 23.
(c) Roof exhaust fans with built-in disconnects provided under Division 22 and 23 shall be wired under Division 26 to the line side of the disconnect switch. A disconnect switch shall be provided under Division 26 if the fan is not provided with a built-in disconnect switch.
In this case wiring from the switch to the fan shall be under Division 22 and 23.
(2) Many of the items covered in the mechanical guidelines pertain to those items which may be unique to The Salisbury VAMC, its mechanical systems or preference or requirements mandated by Engineering Services. Any item not specifically outlined or commented upon in these guidelines is left to the judgment of the engineering design professional to use current accepted good engineering practice. The construction documents are subject to review and comment by Engineering Services at any time during the course of design or construction of the project.
(3) All floor plans and enlargements of floor plans shall bear North arrows, room numbers, and column lines conforming with the designations found on the Architectural floor plans. All floor
pg. 12 plans and enlargements shall have the same directional orientation as the architectural floor plans. Site plans and floor plan directional orientation shall agree.
1.4 MECHANICAL EQUIPMENT ROOM DESIGN
A) New mechanical equipment rooms shall be designed to have access from the outside, via an opening large enough to facilitate the removal of the largest piece of equipment therein. It is desirable that access by truck to equipment rooms be incorporated where possible.
B) All mechanical equipment shall be within Mechanical Equipment Rooms (MER). MERs shall be large enough to allow proper servicing of equipment, allow for future growth, and include access for replacement of all mechanical equipment.
C) The Consultant shall locate the MER to protect the surrounding areas from equipment generated noise. If sensitive spaces exist above or adjacent to a MER, acoustic insulation shall be provided.
D) The layout of equipment within a MER shall allow access to all equipment components, including pulling tubes for converters, chillers, and air-handling unit coils. A minimum of 3 feet is required for access to filters, dampers, and valves and as a separation between equipment.
Lifting eyes shall be provided in equipment rooms in which the moving of heavy equipment is anticipated and for above ceiling equipment, such as an environmental room compressor, that will be mounted above the room.
E) MERs shall have space allocated within for storage of air filters and miscellaneous maintenance items.
F) MERs shall be provided with sufficient lighting that is not obstructed by ductwork or piping. Column and wall-mounted lighting shall be included where necessary.
G) All MERs shall be equipped with duplex convenience outlets suitable for operating small tools and drop cord trouble lights.
H) Provisions for domestic water services for maintenance purposes shall be provided.
I) MERs located above the lowest floor shall be curbed to prevent flooding.
J) All MERs shall be provided with adequate ventilation and temperature control designed to prevent temperature buildup.
K) Mechanical equipment rooms shall be placed preferably at ground level and away from occupied spaces to minimize transmission of vibrations and noise into the building.
1.5 ADDITIONAL REQUIREMENTS FOR DRAWINGS
A) Capacity of new equipment shall be described on drawings by way of equipment schedules. Equipment schedules shall indicate, in addition to technical data, the location of equipment and areas served by it.
Schedules for air-handling units shall indicate minimum and maximum outdoor airflow in cubic feet per minute in addition to other information.
pg. 13
B) Ductwork layouts on 1/8" and 1/4" scale drawings shall be shown as a double line, drawn to scale. Single line duct layouts will be acceptable only on preliminary drawings.
C) Flow diagrams for air, water, and steam shall be shown on drawings with all piping sized. Direction of flow shall be indicated. The Consultant shall incorporate schematic piping diagrams for the following:
(1) Chilled water systems
(2) Condenser water systems
(3) Hot water systems
(4) Converters
(5) Pumps
(6) Heating and cooling coils
(7) Steam main drips
(8) Flash tanks
(9) Pressure-reducing stations
(10) Domestic hot water heaters
(11) Cooling towers
(12) Others as they may apply to a specific project
D) Piping and ductwork sizes shall be clearly indicated. All valves shall be shown, as well as volume dampers in ductwork, fire dampers, and access doors. Valves and dampers shall be placed in locations with adequate access.
E) Mechanical equipment room layouts shall be drawn in 1/4" scale or larger. As many sections as necessary shall be provided to clarify installation of equipment, piping, and ductwork, and to show clearances for service. All large valves, particularly gate valves, shall be drawn to scale showing the location of the hand wheels.
F) The automatic temperature control schematic shall be shown on drawings. Sequence of operation description shall be included.
PART 2 PRODUCTS
2.1 VALVES
A) All valves (except plumbing fixture faucets, convenience hose bibs, shut offs at plumbing fixtures, and similar rough-in connections and end-use fixtures) shall be provided with 19-gage polished brass valve tags with the stamp-engraved piping system abbreviation and sequenced valve numbers. Valve tags shall be attached with brass chains or S-hooks.
B) Valve schedules shall be mounted in glazed display frames at the facility and shall include valve number, piping system, system abbreviation (as shown on valve tag) and location of valve (room and space). Valves intended for emergency shut-off and similar special uses shall be marked by “flags” in the margin of the schedule.
2.2 ID MATERIALS
A) Mechanical equipment shall be labeled with name, number as designated on designer’s contract documents, service and operational requirements, safety, and emergency precautions, design capacity, and other design parameters such as pressure drop, entering and leaving conditions, rpm, etc. Ductwork shall be identified as supply, return, exhaust, intake, or relief with signs and arrows showing service and
pg. 14 direction of flow. Pipe shall be identified with colored signs and arrows indicating its respective system and direction of flow. See Div 9, Colors, for equipment and piping color schedule. New equipment will be pre-painted by the equipment supplier before shipment.
B) Permanent, bright colored, continuous plastic tape, intended for direct burial, shall be installed 8” below finished grade directly over all buried utilities. Tape shall be printed to most accurately indicate type of buried utility.
C) Tracer Wire: A #12 AWG or heavier (smaller AWG number), solid, insulated (RHW, THW, or polyethylene insulation is recommended), copper wire shall be taped to pipe at 15 to 20-foot intervals. Do not wrap wire around pipe. The wire must be one continuous, unbroken length. Coil tracer wire at meter location and street end with enough wire to extend a minimum of two feet above grade.
D) Tracer Wire Boxes: Plastic gas services longer than 1000 feet in length from curb valve to meter riser must have tracer wire boxes installed at customer's expense in accordance with Company standards.
SECTION 23 0520 - HVAC PIPING, VALVES & ACCESSORIES
PART 2 PRODUCTS
2.1 PIPE AND FITTINGS
A) The Designer shall clearly indicate the service for which pipe is intended when specifying pipe material. A schedule shall be provided that identifies pipe material and pressure class, application, methods of joining, fittings, and other relevant information.
B) Appropriate devices for piping expansion shall be provided. Expansion joints, guides, and anchors shall be indicated on drawings. The Designers are responsible for calculating pipe stresses and location of anchors.
C) The Consultant shall provide for positive means of draining and venting the piping system. Valves shall be provided to allow for isolation of branch piping and risers.
D) Balancing valves shall be provided to facilitate system testing and balancing.
E) Pressure taps on each flow-measuring device shall be extended outside of the insulation. Measuring devices shall be clearly indicated and at least one flow meter shall be provided.
F) Welding procedures and requirements for welders’ qualifications shall be clearly described in the specification.
G) Pipe hangers and supports shall be selected to prevent pipe bending and deflection and to eliminate the transmission of vibration to the building structure.
H) Piping shall be color-coded and labeled according to ANSI A13.1 standard. Color chips shall be provided to the Owner for approval.
2.2 VALVES
A) Provide a by-pass valve on high-pressure steam line isolating valves.
SECTION 23 0593 - HVAC TESTING, ADJUSTING & BALANCING
pg. 15
PART 3 EXECUTION
3.1 TESTING ADJUSTING AND BALANCING
A) Testing, Adjusting, and Balancing (TAB) shall be completed by an independent balancing company certified by AABC or NEBB.
B) The TAB contractor shall be a sub-contractor to the mechanical contractor.
C) TAB shall be completed, and the report submitted to the designer before the final inspection. The TAB report shall be available at the final inspection for designer and State Construction review.
D) The designer shall coordinate with the TAB contractor to spot check air and/or water flows at the final inspection.
SECTION 23 0700 – HVAC INSULATION
PART 3 EXECUTION
3.1 INSULATION FOR DUCT SYSTEMS
A) All supply and return air ductwork shall be insulated. It is suggested that insulation density for supply duct be not less than 3 pounds per cubic feet. Due to indoor air quality concerns, supply and return ductwork shall be wrapped with insulation, rather than internally lined. However, if noise transmission from the fan is a concern, designer may specify insulation liner only to the extent necessary to achieve the sound control desired.
B) All ductwork in unconditioned spaces shall be provided with vapor-retarding finish.
C) Asbestos abatement design for renovation projects will be provided in the contract documents.
SECTION 23 0800 - MECHANICAL SYSTEMS COMMISSIONING
1.1 Design for Construction Commissioning. The mechanical designer will be responsible for ensuring and developing “… a systematic process of assuring that a building (mechanical, electrical and plumbing systems) performs in accordance with the design intent and the owner’s operational needs.” The Owner considers the following elements as a minimum requirement for building acceptance and inherently integral to the Mechanical Designer responsibilities, unless specifically notified otherwise by the Owner.
A) Installation Verification B) Startup and Checkout C) Performance Testing and Demonstration D) Training E) Closeout
pg. 16
1.2 The Designer will include in bid documents the specific support and documentation required of the General Contractor, Mechanical Contractor, Electrical Contractor, Plumbing Contractor, Controls Contractor, Designer, Owner and others as applicable to ensure acceptable commissioning.
Reference APPENDIX B for commissioning guidelines. Guidelines will be modified as appropriate for each project.
SECTION 23 0900 - AUTOMATIC TEMPERATURE CONTROLS
2.1 SYSTEM
A) Building Automation System:
(1) The control system shall be fully compatible with the existing campus Facilities Automated Controls System (FACS). The existing system is web-based Siemens. The new system shall have full control capability through the existing server. All systems must be completely and seamlessly programmable through the Siemens server. Systems that require additional computers or software to program and control will not be acceptable. The Contractor must provide the cost for the complete integration of the new system open protocol controller and / or gateway to the existing system interface, to include utilities monitoring and interface to the Siemens software.
SECTION 23 6000 - HVAC EQUIPMENT
1.1 REFRIGERATION EQUIPMENT
A) Preference shall be given to chilled water production based on water-cooled centrifugal chillers. Other options may be considered if circumstances warrant and are approved by the Owner. Air-cooled chillers must be Life Cycle Cost justified.
B) Ventilation of all mechanical rooms with refrigeration equipment shall be provided. Ventilation shall be accessible for activation from an emergency switch located outside any of the mechanical room access doors. Mechanical room ventilation shall be negative to corridor or any other adjacent spaces. Ventilation and room design shall comply with the latest version of ASHRAE Standard 15. SCBA will not be installed.
C) Witness test. The Owner reserves the right to require a witness test of the machine purchased. The Owner and a representative of the Owner’s choosing will, at no additional cost to the Owner or the Owner’s representative, witness an eight hour test run of the purchased machine at the manufacturing facilities of the successful vendor. It shall be the manufacturer’s responsibility to advise the Owner ten days in advance of the test date so travel arrangements can be made.
pg. 17
1.2 PUMPS
A) To prevent waste of energy in hydronic systems, three-way or bypass valves shall not be used except for “end of line” application.
B) Pumps shall be installed in mechanical equipment rooms. Outdoor pump installation shall be avoided.
SECTION 23 7000 - AIR DISTRIBUTION
2.1 DUCTWORK
A) Ductwork for air distribution shall be designed to yield minimum owning and operating costs by keeping the static and dynamic pressure levels of a duct as low as possible given the building's normal physical constraints
B) The Consultant shall provide ductwork that is free of heat gains or losses and excessive sound levels, has fire and smoke control, and in which air leakage does not exceed 2 to 5 percent.
C) Ductwork fabrication and installation shall follow the latest recommendation of SMACNA.
D) The use of flexible ductwork shall be avoided. The maximum length of a flexible duct shall not exceed 5'. Avoid offsets and curves in flexible duct connections to diffusers and other terminal devices.
E) Provide access doors large enough to allow service and inspection of control dampers, reheat coils, humidifiers, fire dampers, and all applicable system components. An access door size of 24” x 24” is recommended.
b. Stand-alone mini split systems are not optimal due to lack of parts availability and non-
US manufacture. Prefer building control automation in order to effectively and efficiently adjust temperatures.
c. AHUs rather than fan coil units preferred.
d. Hydronic Piping shall be either copper or steel. No PVC/ CPVC.
e. Spec Add’s/ notes (Amendments to the TIL spec):
SECTION 23 09 23 DIRECT-DIGITAL CONTROL SYSTEM FOR HVAC
1.1 Description ADD:
“F. This facility’s existing direct-digital control system is manufactured by Siemens Industry, Building Technologies, and its ECC is located at the maintenance shop. The existing system’s top-end communications is via BACNet/IP. The existing system’s ECC and top-end controllers were installed in 2018. The contractor administered by this Section of the technical specifications shall observe the capabilities, communication network, services, spare capacity of the existing control system and its ECC prior to beginning work.
1) The combined system shall operate and function as one complete system including one database of control point objects and global control logic capabilities. Facility operators shall have complete operations and control capability over all systems, new and existing including; monitoring, trending,
pg. 18 graphing, scheduling, alarm management, global point sharing, global strategy deployment, graphical operations interface and custom reporting as specified.
2) The performance requirement for the combined system: the combined system shall operate and function as one complete system including one database of control point objects and global control logic capabilities. Facility operators shall have complete operations and control capability over all systems, new and existing including; monitoring, trending, graphing, scheduling, alarm management, global point sharing, global strategy deployment, graphical operations interface and custom reporting as specified.
G. This campus has standardized on an existing standard ASHRAE Standard 135, BACnet/IP Control System supported by a preselected controls service company, Desigo CC by Siemens Industry, Building Technologies. This entity is referred to as the “Control System Integrator” in this Section of the technical specifications. The Control system integrator is responsible for ECC system graphics and expansion. It also prescribes control system-specific commissioning/ verification procedures to the contractor administered by this Section of the technical specification. It lastly provides limited assistance to the contractor administered by this Section of the technical specification in its commissioning/verification work.
1) The General Contractor of this project shall directly hire the Control System Integrator in a contract separate from the contract procuring the controls contractor administered by this Section of the technical specifications.
2) The contractor administered by this Section of the technical specifications shall coordinate all work with the Control System Integrator. The contractor administered by this Section of the technical specifications shall integrate the ASHRAE Standard 135, BACnet/IP control network(s) with the Control System Integrator’s area control through an Ethernet connection provided by the Control System Integrator.
3) The contractor administered by this Section of the technical specifications shall provide a peer-to-peer networked, stand-alone, distributed control system. This direct digital control (DDC) system shall include one portable operator terminal -laptop, one digital display unit, microprocessor-based controllers, instrumentation, end control devices, wiring, piping, software, and related systems. This contractor is responsible for all device mounting and wiring.
24. Not Used
25. Not Used
26. Electrical
a. Transfer Switch: Cummins Automatic Transfer is preferred to match existing equipment.
b. Breakers/ panels: “Square D” panel boards preferred.
c. 2’ x 2’ light fixtures are preferred over 2’ x 4’ lights in hung ceilings.
d. If “can” lights are specified, these shall be min. 6” diameter. 4” diameter can lights are unsatisfactory.
e. Bulbs should be 4 pin, 60 watts wherever possible.
f. ¾” conduit is minimum diameter preferred.
pg. 19
27. Communications
a. Public Address System shall be 2’ x 2’ type to fit within a ceiling grid - not the circular inset type which fits within a ceiling tile.
b. Nurse call stations shall be Rauland “Responder 5” system;
https://www.rauland.com/healthcare/responder-nurse-call;
Rauland:
800 752 7725 1802 West Central Road Mount Prospect, IL 60056
28. Electronic Safety and Security
a. Speaker/ Strobe combination mounted on wall, not on ceiling is preferred – compatible with notifier system to match existing.
29. Not Used
30. Not Used
31. Earth Moving
32. Exterior Improvements
a. https://www.cfm.va.gov/til/dManual/dmParking.pdf
b. Section 4-2 – ADA Considerations:
“Note: Location of walkways shall preferably eliminate the need to walk or wheel behind parked vehicles”
“Accessible paths from parking spaces are preferably located so that they do not share parking drive aisles, and are not located behind parking spaces”
33. Utilities
A. SUBSURFACE EXPLORATION:
a. Designer Responsibilities:
1. Designer shall direct a soils exploration program (see N.C. Construction
Manual, Section 204.1.c) as judged necessary in consultation with the Salisbury VAMC. The Designer shall contact the UPM and submit a Request for Proposals for soils exploration. UPM will provide names of pre-qualified testing companies. This will include investigative work and surveyor reports, laboratory tests (incl. test borings), soil analysis (incl.
load bearing capabilities), and related site analysis. The designer shall study plans of existing underground utilities and shall locate borings to avoid these utilities. Bored holes are to be backfilled, finish graded, and seeded. Submit six copies of the site exploration report to the Salisbury
VAMC.
pg. 20
b. Information To Be Included In Contract Documents:
1. Show all boring locations, cross sections, and soil conditions. Also, show all existing conduits, drains, utility lines, sewers, tunnels, cables, trees, paving, walks, foundations, and other objects or obstructions, whether used or abandoned. Engineering Services will assist with identifying existing conditions and will provide drawings as available. Clearly indicate the project boundary.
c. Spec Add’s/ notes (Amendments to the TIL spec):
SECTION 33 0500 – UTILITIES
1.1 QUALITY ASSURANCE
A) Coordination of Divisions of Work: Care is required in preparation of documents to assure no overlapping and no gaps between the work for the various contracts. Each contractor shall be required to perform excavation, trenching, and backfill for his installations. Materials and compaction of fill materials shall meet the requirements stipulated in Division 2, regardless of who performs this work; therefore, in Divisions 15 and 16 the requirements of earthwork may be best specified by making reference to Division 2.
B) Surveyor to review and coordinate survey to assure that the survey shows all utilities.
PART 2 PRODUCTS
2.1 MANHOLES
A) Manhole frame, cover, and grate castings shall include the name and location of the manufacturer. Covers shall have cast identification markings of “storm drain”, sanitary, “steam”, “electrical”, “telephone”’ etc. as appropriate. Masonry manholes shall be parge coated inside and out. Manholes are considered confined spaces and appropriate safety measures should be taken when entering them.
2.2 VALVES
A) All valves are required to have a donut.
B) All water valves to operate by turning the square nut clock-wise (right) to close and counter-clockwise (left) to open, as per VA requirements.
C) Provide all valves with extensions when grade at location is altered.
D) All valves shall be marked with buildings/ areas of buildings affected with brass tag.
E) Sloan valves preferred.
SECTION 33 1150 – UTILITIES
1.1 UTILITY STANDARDS
pg. 21
A) All underground piping and utilities (both metallic and non-metallic), except copper pipe, shall have a separate copper tracer wire and non-metallic warning tape installed above the utility line.
B) The tracer wire shall be traced for continuity prior to backfill, immediately upon completion of backfill and compaction and once again during final utility location/as-built at the end of the project. This also will include landscape irrigation mains to the points of the valves.
All above ground utility features such as vaults, manholes, valves, handholds, etc to be properly labeled. Contractor shall provide an inventory of all installed outdoor utility features including type and model.
1.2 IDENTIFICATION TAPE
A) The 1st stage of identification shall be a buried warning tape. This tape shall provide an early warning at shallow depth excavation. The tape shall be 6" wide and buried approximately 18" to 30" above the service pipe, but a minimum of 10" below finished grade. It shall consist of multiple layers of polyethylene with an overall thickness of 3 to 5 mils. It shall be installed continuous from valve box to valve box or manhole to manhole and shall terminate just outside of valve box or manhole wall.
The black colored lettering on the warning tape shall be abrasion resistant and be imprinted on a color-coded background that conforms to APWA color code standards. The lettering on the tape should name the utility it is protecting. (i.e. Caution Buried Sewer Line Below)
1.3 TRACER WIRE
A) The 2nd stage of identification shall be a buried tracer wire. This tracer wire shall provide pipeline identification, be fully detectable from above grade utility locators, and be able to provide a depth reference point to top of pipe.
B) All pipe, including lawn irrigation lines, and metallic pipe with compression gasket fittings installed underground shall have a tracer wire installed along the length of the pipe. The wire shall be taped to the bottom of the pipe at a maximum of 10' intervals and not allowed to "float freely" within the backfill.
C) Tracer wire shall be single-conductor, 12 gauge minimum, copper single-conductor wire with type "UF" (Underground Feeder) insulation and shall be continuous along the pipeline passing through the inside of each valve box.
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