A04_Union_Slough_NWR_Seed_Cooler_SOW_06242024.pdf

140F1B24Q0016 Union Slough NWR 6/26/2024

STATEMENT OF WORK

Type of Service or Construction (238220)

Seed Cooler at Union Slough NWR

1. General:

U.S. Fish and Wildlife Service, Union Sough NWR, IA, has a requirement for a walk in seed cooler with installation located at Iowa DNR Prairie Resource Center, 2820 Brushy Creek Rd, Lehigh, IA. The anticipated performance period is from 9/1/2024 – 12/1/2024

The walk-in cooler is for native seed storage for 100+ varieties and species. Seed is typically held in breathable vinyl bags so humidity control is important. Moderate refrigerated temperatures preferable to freezing as freezing temps can bring on deep seed dormancy.

Cooler will be assembled outside directly against existing heated shop with the door opening into the shop. Long wall (24ft) will be against the shop. A 12x24 concrete slab (not part of this contract) will be poured and butted to the existing shop before the arrival of the cooler. Electric work to hook up the seed cooler will be paid by the Iowa Department of Natural Resources and not part of this contract. Bid is for delivery and full assembly and joining of cooler door to shop wall - to open inside shop.

The temperature must be maintained in the cooler 35-40 deg F year-round temp control and relative humidity must be kept at 45% or below inside cooler.

There is single phase 120 or 240 V electricity available at site.

2. Place of Performance and Period of Performance:

2.1 The cooler will be delivered and assembled at the following location:

Iowa DNR Prairie Resource Center 2820 Brushy Creek Rd, Lehigh, IA 50557

2.2 Period of Performance is expected to be from 9/1/2024 – 11/1/2024. Cooler cannot be installed until after late August when a new slab for it is being poured.

2.3 Normal duty hours Monday thru Friday 8:00 a.m. - 4:30 p.m excluding federal holidays. In the event of emergencies, Contractor shall provide contact information.

3. Scope

a) Install new walk-in cooler panels.

b) Install new outdoor condensing unit and coils for walk-in cooler (Meet all Dept of Energy requirements)

c) Install refrigeration lines per ASHRAE specs and practices

d) Install condensate drains from evaporator coils to drain away from existing building.

e) Evacuate and charge system with R448A

f) Start up and balance system

g) Provide one-year minimum parts and labor warranty

h) Cut in doorway to existing building and trim with metal

i) Include any necessary permits and fees

4. Deliverables and/or Delivery Schedule:

4.1 The following are the specifications needed for the cooler and refrigeration standards

Condensing Unit:

Oversized to maintain relative humidity below 45% Number of Compressors: 1 Outdoor use rated Medium temp (35-45° F) Voltage: 208-230 Volts, 1 Ph, 60 Hz Refrigerant type R448A Piping: Standard Compressor type: Scroll Compressor Hp: 3 Expected outside ambient temperature 95° F Saturated Suction Temperature 25° F Annual Walk-in Efficiency Factor (AWEF) Value 7.6 or less Heavy duty, steel, minimum 1 ½” tall base for floor of condensing unit.

Evaporator(s) Motor type 2 Speed Electronically Commutated (EC) Number of Fans: 1 Fan Horsepower: 1/20 Fins per inch: 6 Application capacity: 12,004 BTU/H ¾” ID drain hole Electronic control panel 208-230 volts, 1 Ph, 60 Hz Refrigerant type: R448A Heavy gauge aluminum cabinet

Walk in cooler Size: 24’ x 12’ x 8’ Insulation thickness: 4” walls & 5 ½“ceiling Designed to withstand snow, wind and environmental conditions Waterproof roof sloped to drain to the north. Minimum of ¼” per foot, ½” per foot preferred.

Wood screed and cove molding floor to insure cooler is level Finishes: 26 Ga Stucco Galvanized interior and exterior walls and ceilings Door description: Cooler door (35°F), 60” x 78”, overlap mount, right hand hinge Accessories:

(5) vapor proof lights Light switch Digital thermometer Inside release push handle 24” high kick plates interior and exterior door.

5. Government-Furnished Equipment (GFE) / Government-Furnished Information (GFI)

5.1 N/A

6. Evaluation and Acceptance

6.1 Technical Acceptability: The quotes for this project will be evaluated on the following factors:

Three years past performance in installing walk-in coolers or refrigeration projects Refrigeration equipment and walk in cooler must meet minimum specifications or as close to specifications in the statement of work Must show necessary HVAC licensing for the state of Iowa

7. Technical Coordinator: Will be provided at award of contract

Exterior Wall where cooler will be installed.

Interior of shop where cooler is to be installed. Space will be cleared before installation.

End of Statement of Work