Freezer_Trailer_and_Freezer_Unit-Specifications.pdf

SPECIFICATIONS

NORTHEAST FISHERIES OBSERVER PROGRAM (NEFOP)

PURCHASE, INSTALLATION AND SITE PREPARATION WORK

FREEZER/CHILLER UNIT AND STAND –ALONE FREEZER UNIT

PART 1 GENERAL

The National Oceanic Atmospheric (NOAA), National Marine Fisheries Science Center (NEFSC), Northeast Fisheries Observer Program collects marine mammal, sea turtle, seabird, fish and shark species for scientific research. The observers collect specimens at sea while observing aboard commercial fishing vessels from Maine to North Carolina, USA. The samples are stored at the facility in Falmouth Technology Park. Most of the samples are temporarily stored and then transported elsewhere for research purposes. Freezing and chilling facilities are an integral component in our training and research program.

1.01 CONTRACT DESCRIPTION

A. The NMFS/Northeast Fisheries Training Center is located at: 25 Bernard Saint Jean Drive, East Falmouth, MA 02536.

B. The Contractor shall complete the following:

1. Site work preparation, freezer concrete pads installation, electrical work supply install requirements, installation of back-up generator requirements, and other work required prior to freezer delivery shall be submitted within the bid.

2. Concrete pad and site work preparation requirements are attached as a minimum guide.

Concrete pads must meet all freezer manufacturer and code needs.

3. Delivery and installation of new exterior freezer storage units, condensing units, generator, and electrical supply and other work described within the contract documents.

4. Construct and deliver one outdoor walk-in chiller/freezer unit and one outdoor walk-in freezer unit as described within the contract documents.

1.02 PRODUCT DESCRIPTION

The Contractor shall provide all labor, material, tools, equipment, and supervision necessary to manufacture, deliver and install one (1) freezer/chiller unit plus one (1) freezer unit as described in specifications and descriptions within contract documents. Both units must be able to be movable, if needed, at a later time. The proposed drawings with specifications (build, condenser, electrical, alarms, back-up power) shall accompany all offerors. The optional items for the listed product descriptions may be included in offeror. Products shall be to specifications approved to be equal, or better, of outdoor walk-in freezers constructed/manufactured by recommended manufacturer, Polar King International, Inc..

A. Vendor shall deliver one (1) stand-alone Freezer/Chiller unit that shall have, at a minimum:

a. Seamless interior/exterior, with exterior dimensions of approximately10’ x 46’

b. Freezer section shall be approximately 12’ of total length, chiller section approximately 26’ of total length, with internal door described below

c. Condenser for chiller must be able to easily maintain 35 degrees F

d. Condenser for freezer should be able to operate at negative 20 degrees F

e. Exterior door will be placed on the chiller short side

f. Hasp lock

g. Safety release handle

h. Lockable door hatch

i. Self-closing hinges

j. Heated door jamb

k. Magnetic gasket

l. Door closer

m. Sweep seal

n. 208-230/1/60 refrigeration system

o. Low ambient controls

p. Defrost timer

q. Heated relief ports (freezer)

r. Light switch/pilot light

s. Rain cap exterior doors

t. Remote thermometer

u. Interior vapor proof fluorescent light fixtures providing lighting sufficient to perform needed laboratory work in chiller space and safe work in freezer

v. Crowned roof (weather appropriate)

w. Heavy duty non-skid floor

x. Heated freezer door

y. Min. 6” insulation

z. Drainage system for chiller and freezer to meet site needs

aa. Vinyl strip door curtains

bb. 48” doors, interior and exterior

cc. Floor drains

dd. 3 phase electrical

ee. Powder coated door hardware (hardware to handle saltwater conditions)

ff. Copper fins on evaporator coils

gg. Coated condenser coil

hh. Electrical box able to withstand saltwater environment

ii. Galvanized frame

jj. 24”x36” (min.) insulated window in chiller room

kk. 8’x12’ – 10’ x 14’ awning (minimum) (placed over window)

ll. Epoxy paint on fiberglass (preferred) interior/exterior

mm. Shelving system for both 12’ internal freezer walls to hold samples, adjustable 4 tier height, approx. 24” depth per shelf, heavy load capacity (500-800 lbs. per shelf),, warranty against corrosion/rust

nn. External flood lights, controlled either by motion sensor/timer or manually

oo. Installation of 24-hr alarm remote system indicating power loss and temperature problems

B. The Contractor shall deliver one (1) stand-alone freezer unit that at a minimum:

a. Condenser for freezer should be able to operate at negative 20 degrees F

b. Seamless interior/exterior

c. Hasp lock

d. Safety release handle

e. Lockable door hatch

f. Self-closing hinges

g. Heated door jamb

h. Magnetic gasket

i. Door closer

j. Sweep seal

k. 208-230/1/60 refrigeration system

l. Low ambient controls

m. Defrost timer

n. Heated relief ports (freezer)

o. Light switch/pilot light

p. Rain cap exterior doors

q. Remote thermometer

r. Interior vapor proof fluorescent light fixtures providing lighting sufficient to perform needed laboratory work and safe work in freezer

s. Crowned roof (weather appropriate)

t. Heavy duty non-skid floor

u. Heated freezer door

v. Min. 6” insulation

w. Drainage system to meet site needs

x. Vinyl strip door curtains

y. 48” doors, interior and exterior

z. Floor drains

aa. 3 phase electrical

bb. Powder coated door hardware (hardware to handle saltwater conditions)

cc. Copper fins on evaporator coils

dd. Coated condenser coil

ee. Electrical box able to withstand saltwater environment

ff. Galvanized frame

gg. Installation of 24-hr alarm remote system indicating power loss and temperature problems

hh. Meat rail for mammal storage/movement (to hold individual animals of 200+ lbs)

ii. Min. 12 meat hook with trolly system

jj. Shelving system along one wall to hold samples, adjustable 4 tier height, approx 24” depth per shelf, heavy load capacity (500-800 lbs. per shelf), warranty against corrosion/rust

kk. External flood lights, controlled either by motion sensor/timer or manually

ll. Installation of 24-hr alarm remote system indicating power loss and temperature problems

C. A back-up condenser system shall be supplied to operate either freezer compartment if needed. The back-up condenser shall be designed to operate on a back-up automated generator system. Various designs/options for back-up generator/condenser systems will be considered. A one- unit system per freezer with a securable commercial grade generator (for 24-hour run time), with an auto transfer switch (in event of electrical outage), and mounted on the frame base is preferred.

D. Both units shall be installed by Contractor. Specifications for site work requirements, concrete pad/foundation requirements, electrical installation and hook up requirements, generator type, load requirements, etc., must be submitted with offer. Contractor shall willing to provide any site work and are responsible for providing any needed technical information and guidance to sub-contractors (eg. pads, electrical, alarm).

E. A remote freezer failure notification, system shall be installed to include a temperature logger with power failure and out of temperature alarm that is connected to a cell phone with an initial 1-year wireless service contract.

F. Installation of units may be staggered in time by the government due to logistical and facility operational needs. The time will not exceed 45 days. The delivery and installation of chiller/freezer unit should be completed first. Temporary on-site storage (up to five weeks) of freezer unit contents should be considered.

1.03 DELIVERABLES

A. Five (5) working days prior to delivery of units, the contractor shall submit the following:

1. Samples and manufacturer’s data per the contact documents.

2. Ensured site work completion

3. Schedule of delivery/installation

1.04 WORK SEQUENCE

A. Care shall be exercised to provide protection for of the building and equipment within the building and outside building premises. Do not disrupt activities in occupied spaces.

1.05 USE OF THE PREMISES

A. Before beginning work, the Contractor shall secure approval from the building owner’s representative for the following:

1. Areas permitted for personnel parking.

2. Access to the site.

3. Areas permitted for storage of materials and debris.

4. Security: Obey the owner’s requirements for personnel identification, inspection and other security measures.

5. Location of temporary freezer.

6. Location of dumpster.

1.06 EXISTING CONDITIONS

A. If discrepancies are discovered between the existing conditions and those noted on the drawings, immediately notify the COTR.

1. Upon receipt of Bidding Documents verify documents are complete.

Notify COTR if documents are incomplete. Immediately notify COTR upon finding discrepancies or omissions in Bidding Documents.

1.07 PRE-DELIVERY CONFERENCE

A. Prior to response date and time, the Contractor shall schedule a job site inspection to observe actual conditions and verify all dimensions. This is meant to assist with site work planning (foundations an, electrical, logistical, etc.). The COTR may agree to complete this remotely without if all site conditions and concerns are listed. Access to the site prior to the RFQ closing date the Contractor must contact the owner’s representative, Tania Lewandowski at 508.495.2264 to coordinate an appropriate time. The site visit must be confirmed at least 48 (two (2) working days) hours in advance of intended site visit.

1.08 WORKMANSHIP

A. All work shall be of highest quality and in strict accordance with the manufacturer’s published specifications and to the building owner’s satisfaction.

1.09 WARRANTY

A. Provide manufacturer’s warranty covering both labor and material with no dollar limitation.

PART 2 EXECUTION

2.01 GENERAL

A. Comply with the latest codes, regulations, laws, manufacturer’s published instructions for the installation of specified products, and installation requirements per the contract documents.

2.02 CLEAN UP

A. Perform daily clean-up to collect all wrappings, empty containers, paper, work debris, and other debris from the project site. Upon completion, all debris must be disposed of in a legally acceptable manner.

2.03 PERIOD OF PERFORMANCE

A. Upon notice to proceed the Contractor shall be required to complete work within 65 days.

PART 3 SITE WORK FOR CONCRETE PADS FOR WALK-IN FREEZERS

SCOPE OF WORK:

1. Contractor shall supply all labor, equipment, clean up, and materials to construct pad(s) to properly support two (2) freezer units. Specific pad requirements will be made available by the freezer contractor.

2. Concrete pads are based on freezer unit size and walk around area. Total area is approximately 1000 SF. One (1) freezer unit footprint is approximately 10 feet by 46 feet, the second freezer unit is 8 feet by 24 feet. Concrete shall be at least 4” thick.

Compact, form, support, reinforce, and place concrete per the contract documents.

Thickness shall be greater where hurricane tie-down connections are located.

3. Prepare sub-base and other required site work.

4. Demolish and remove existing concrete pad.

PART 1 – ADDITIONAL REQUIREMENTS

1.1 SUBMITTALS

A. Product Data: For each type of product indicated.

B. Design Mixture: For concrete mixture

C. Welded Wire Fabric (WWF) reinforcement: Include sizes, lengths, material, grade, splices and laps, mechanical connections, and supports.

1.2 QUALITY ASSURANCE

A. Installer Qualifications: A qualified installer with 5 year experience. Provide adequate number of experienced workmen regularly engaged in this type of work who are skilled in the application techniques of the materials specified. Provide at least one thoroughly trained and experienced superintendent on the job at all times when work is in progress.

B. Manufacturer Qualifications: A firm experienced in manufacturing ready-mixed concrete products and that complies with ASTM C 94/C 94M requirements for production facilities and equipment.

C. ACI Publications: Comply with the following:

1. ACI 117, "Specifications for Tolerances for Concrete Construction and

Materials."

D. Pre-installation Conference: Conduct conference at Project site per contract documents, as directed by the solicitation for bids and the COTR.

E. First class attention to details as appropriate for a government facility to enhance public image (manicured). If the COTR directs the Contractor’s supervisor to concentrate efforts on a particular item, this shall be interpreted as the acceptable quality level for that area for that area is falling below set standards.

1.3 DELIVERY, STORAGE, AND HANDLING

A. Steel Reinforcement: Deliver, store, and handle WWF reinforcement to prevent bending and damage.

PART 2 - PRODUCTS

2.1 FORM-FACING MATERIALS

A. Smooth-Formed Finished Concrete: Provide continuous, true, and smooth concrete surfaces. Furnish in largest practicable sizes to minimize number of joints.

B. All edges shall have a 1” chamfer edge.

2.2 STEEL REINFORCEMENT

A. Plain-Steel WWF Reinforcement: ASTM A 185, plain, fabricated from as-drawn steel wire into flat sheets. 6 X 6 W4.0 X W4.0.

2.3 REINFORCEMENT ACCESSORIES

A. Bar Supports: Bolsters, chairs, spacers, and other devices for spacing, supporting, and fastening welded wire reinforcement in place. Manufacture bar supports from steel wire, plastic, or precast concrete according to CRSI's "Manual of Standard Practice.

2.4 CONCRETE MIXTURES, GENERAL

A. Prepare design mixtures according to ACI 301.

B. Proportion normal-weight concrete mixture as follows:

1. Minimum Compressive Strength: fc’= 3500psi at 28 days.

2. Water Reducing Agent: Conform to ASTM 494 type A

3. Air Entrainment Agent: Conform to ASTM C-260Slump Limit: 3-5 inches .

5. Synthetic Fiber: Uniformly disperse in concrete mixture at manufacturer's recommended rate, but not less than 1.5 lb/cu. yd.

2.5 FABRICATING REINFORCEMENT

A. Fabricate WWF reinforcement according to CRSI's "Manual of Standard Practice."

2.6 CONCRETE MIXING

A. Ready-Mixed Concrete: Measure, batch, mix, and deliver concrete according to ASTM C 94/C 94M and ASTM C 1116. Furnish batch ticket information to the COTR prior to placement of concrete.

2.7 VAPOR BARRIER

A. Vapor barrier will be 6 mils thick.

PART 3 - EXECUTION OF SITE WORK

3.1 DEMOLITION/SITE PREPARATION

A. Demolish and remove existing concrete pad. Remove all debris from site and legally dispose of.

B. Remove all non-structural fill to at least 8” below grade. Replace with structural fill and compact to 95% density.

C. Crushed stone pathway should be joined to pad area and, surrounding area must be brought to grade with at least the top 3” depth of ¾ crushed stone.

3.2 FORMWORK AND COMPACTION

A. Set edge forms, batter boards and other required form work to achieve required elevations and concrete surfaces.

B. Compact subgrade. Compaction shall be by a mechanical method and shall achieve a minimum density of 95%. If more than six (6) inches of structural fill is required compaction shall be in six (6-8) inch lifts.

C. Supply additional structural fill material if required to meet the requirements of the contract documents.

3.3 STEEL REINFORCEMENT

A. General: Comply with CRSI's "Manual of Standard Practice" for placing WWF reinforcement.

B. Clean reinforcement of loose rust and mill scale, earth, ice, and other foreign materials that would reduce bond to concrete.

C. Install WWF reinforcement in longest practicable lengths on supports spaced to minimize sagging. Supports shall be in sufficient numbers to support the WWF during and after the placement of concrete. Lap edges and ends of adjoining sheets at least one mesh spacing. Offset laps of adjoining sheet widths to prevent continuous laps in either direction. Lace overlaps with wire.

D. WWF reinforcement shall be support to achieve a height of 1.5 – 2 inches from the top of the concrete placement. WWF reinforcement shall be 1.0 – 1.5 inches away from the sides of form work and natural material being used as forms.

3.4 CONCRETE PLACEMENT

A. Before placing concrete, verify that installation of formwork, reinforcement, and embedded items is complete and that required inspections have been performed. Notify COTR 24 hours in advance of concrete placement. All form work, compaction and placement of WWF shall be completed prior to notifying the COTR.

B. Re-tempering -Do not add water to concrete during delivery, at project site, or during placement.

C. Deposit and consolidate concrete in a continuous operation.

1. Consolidate placed concrete with mechanical vibrating equipment according to ACI 301 so concrete is thoroughly worked around WWF reinforcement and other embedded items and into corners.

2. Do not use vibrators to transport concrete. At each insertion, limit duration of vibration to time necessary to consolidate concrete and complete embedment of WWF reinforcement and other embedded items without causing mixture constituents to segregate.

3. Maintain WWF reinforcement in position on supports during concrete placement.

4. Screed slab surfaces with a straightedge and strike off to correct elevations.

D. Hot-Weather Placement/Cold-Weather Placement: Comply with ACI 301.

3.5 CONCRETE PROTECTING AND CURING

A. General: Protect freshly placed concrete from premature drying and excessive hot temperatures. Comply with ACI 301recommended protection during curing.

B. Evaporation Retarder: Apply evaporation retarder to unformed concrete surfaces if hot, dry, or windy conditions cause moisture loss. Apply according to manufacturer's written instructions after placing, screeding, and bull floating or darbying concrete, but before float finishing.

C. Unformed Surfaces: Begin curing immediately after finishing concrete.

D. Cure concrete according to ACI 308.1, by one or a combination of the following methods:

1. Moisture Curing: Keep surfaces continuously moist for not less than seven days with the following materials:

a. Water.

b. Continuous water-fog spray.

c. Absorptive cover, water saturated, and kept continuously wet. Cover concrete surfaces and edges with 12-inch lap over adjacent absorptive covers.

3.6 FIELD QUALITY CONTROL

A. Inspections:

1. Steel WWF reinforcement: When the WWF is 100% complete notify COTR 24 hours in advance of concrete placement.

2. Verification of use of required design mixture: Submit design mix 5 days prior to concrete placement.

3. Concrete placement, including conveying and depositing: Supply trip ticket from concrete supply from truck delivering concrete: follow and comply with best ACI practices.

4. Additional testing and inspecting at Contractor's expense shall be performed to determine compliance with specified requirements if deficiencies in the Work are identified not conforming to the Contract Documents, ACI, ASTM, and CRSI.

D. Pre-installation Conference: Conduct conference at Project site per contract documents, as directed by the solicitation for bids and the COTR.

D. Hot-Weather Placement/Cold-Weather Placement: Comply with ACI 301.