ATTACHMENT A - LP-205 SOW Replace Refrigeration Systems (Revised).pdf

PWD Norfolk, Facilities Engineering and Acquisition Division Rev. 5.7.10

Scope of Work

Maximo Number: G46K67 Building: LP-205 Project Title: Replace two refrigeration systems Customer: CNIC, Jacqueline E Nusz, (757) 341-0536, jacqueline.e.nusz.civ@us.navy.mil Scope By: Engineering Tech: Mark Wegner Date: March 28, 2023

General Notes:

The purpose of this scope of work is to replace the two refrigeration systems that service the large refer at the Air Freight Terminal in building LP-205 at Naval Station Norfolk, VA.

Contractor Requirements:

1. Perform a thorough site visit and verify materials and measurements before preparing the bid for any work associated with this project.

2. Provide an ITEMIZED price breakdown that includes sufficient detail to permit analysis of all costs for material, labor, equipment, and subcontracts.

3. Install all equipment in strict accordance with manufacturer’s written instructions.

4. Installers must be certified to do the work.

5. Any damage caused by contractor to equipment or finished surfaces shall be repaired or replaced to original condition.

6. Adhere to all EM-385 and OSHA safety regulations.

7. All electrical work shall be performed per National Electric Code.

8. All refrigerant shall be properly recovered and disposed of.

9. Dispose of all unused and demolished materials/equipment to an approved disposal site.

10. Refer to drawings and\or photographs below for clarification.

11. Contractor shall provide O & M manuals for all equipment being installed.

Work must be completed as listed below:

Contractor shall remove and replace the two refrigeration systems complete.

The two existing systems are different sized units. Contractor shall provide two equal systems as per attached specifications. The basis of design is Heatcraft/Climate Control, CCH0075MCACDA0000 and CEM0575BS8AMBB0405 or approved equal. Both units are required to be operational to maintain space temperature. The new units shall be mounted within the same existing support structures. Both evaporators and condensers are fed from panel “CS”, located next to the existing pad mounted condenser units on the ground at the southeast corner of the building. Unit locations are identified in photos below.

Contractor shall provide all piping and appurtenances necessary to replace units.

Perform startup and performance verification testing as required by manufacturer specifications.

Unless otherwise specified, equipment and component items, when fabricated from ferrous metal, must be factory finished with the manufacturer's standard finish, except that items located outside of buildings must have weather resistant finishes that will withstand 500 hours exposure to the salt spray test specified in ASTM B117 using a 5 percent sodium chloride solution. Immediately after completion of the test, the specimen must show no signs of blistering, wrinkling, cracking, or loss of adhesion and no sign of rust creepage beyond 3 mm 1/8 inch on either side of the scratch mark. Cut edges of galvanized surfaces where hot-dip galvanized sheet steel is used must be coated with a zinc-rich coating conforming to ASTM D520, Type I.

Submittals:

New mechanical replacement units.

Project Drawings and Photos:

Photo #1: Aerial view of LP-205 with condensor units location

Both condenser units for refrigeration system and Panel “CS”.

Refrigeration area.

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Photo #2: Existing Kramer Evaperator Unit

Photo #3: Existing Kramer Evaperator Unit Nameplate

Photo #4: Existing Heatcraft Evaporator Unit

Photo #5: Existing Heatcraft Evaporator Unit Nameplate

Photo #6: Existing condenser units

Scope of Work