P09. EMERGENCY - CHILLER REPAIRS SOW.docx

Emergency Repairs – 1250T Trane Centrifugal Chiller / 950T Absorption Chiller Description of Services The Omaha VAMC has an unusual and compelling urgent service required as defined by FAR 6.302-2 to preclude impairment of healthcare delivery and air conditioning required per ASHRAE/VA HVAC design manual. The main hospital requires immediate service on it’s largest water cooled chiller located on the southside of the building adjacent to the doctor’s parking lot after a freeze event caused water to evacuate the chiller in it’s rupture disc. The facility will lack redundancy and will be unable to temper extreme ambient conditions.

Location of Services Department of Veterans Affairs Nebraska-Western Iowa Health Care System, 4101 Woolworth Avenue, Omaha, Nebraska 68105 Period of Performance Anticipated PoP is 120 days ARO Contractor shall notify the VA of all material lead times, schedule of planned maintenance/repair activities on site and contractor points of contact. The general contractor (awardee) shall be on site for no less than 50% of the work as confirmed during biweekly project status reports. Due to the shortened period of performance and likelihood for clinical impacts should a schedule delay occur, it is expected that the contractor work after normal business hours, on the weekend and on federal holidays to achieve this period of performance.

Onsite POC

1. John Albers (normal hours): 712-828-0075 / John.Albers@va.gov

2. AC Plant (normal/after hours): 402-995-3280 / 402-208-9560

3. Griffin Walsh (normal hours): 402-995-3741 / 531-232-9231 / Griffin.Walsh@va.gov

4. Josiah Curley (normal hours): 402-995-5545 / 918-581-4171 / Josiah.Curley@va.gov

Site Visit A site visit has been schedule for 0900 on March 11th 2024. Contact above POC Mr. John Albers for questions regarding the site visit.

Safety Contractor shall ensure enforcement with OSHA safe work practices including but not limited to 29 CFR 1910.147 for lock out tag out of all energy sources. All lift plans shall be provided and approved by VA engineering personnel in advance of work. Contractor shall ensure that all breaker panel schedules are updated as equipment is added or removed.

It is expected that the contractor remain exterior to the facility at all times with any access into the facility limited to business occupancy spaces therefore not required an ICRA. Contractor shall ensure compliance and post a copy of the latest PCRA at all jobs sites and utilize VA PCRA form found at

· VHA PCRA: http://vaww.hefp.va.gov/resources/vha-pre-construction-risk-assessment-pcra

Project Management Contractor shall set up a project kickoff meeting, take meeting minutes and provide the VA with a schedule for the below required tasks. Contractor shall identify the site points of contact and shall check into the VA engineering space (B618) at the start of each work day. Contractor shall include a detailed plan on any proposed shutdowns and the intended work to be done along with manpower levels.

Technical Requirements Contractors shall be authorized and trained by the manufacturers of the equipment supplied and shall ensure that all equipment provided or repaired. Personnel shall have current EPA 608 certification.

General Contractor shall install all equipment per the manufacturer’s recommendations. All openings shall be sealed after the removal of equipment, piping, or other penetrations in the walls. All equipment shall be disassembled at existing location in the mechanical closets or rooms that they reside. Contractor shall confine the work to the immediate area and dispose of all piping, fittings, insulation and hangers.

The contractor shall comply with AHRI requirements for testing and certification of the chillers. Provide a 1-year warranty on services, labor and materials provided.

Services

CENTRAVAC COMPRESSOR OVERHAUL

· Removal of roof to be able to access the chiller.

· Removal of sprinkler line and electrical on inside of box on the roof.

· Remove chiller oil and dispose in accordance with EPA hazardous materials guidelines.

· Disassemble as required to check tolerances on internal motor and compressor parts

· Remove and clean both orifice units

· Set up nitrogen blanket for 24 hours

· Replace burst disk on suction elbow

· Reinforce sagging burst disc on outside of building

· Install service isolation valves for post operation filter changes to the oil filter, secondary oil filter, purge filter, skimmer filter, motor cooling filter and cleanup filter. Contractor to provide new filters for all

· Replace front and rear bearings

· All gaskets and o-rings will be replaced with new

· Includes any additional rigging and crane that is needed to complete necessary repairs.

· Inspection and verification of the inlet guide vane assembly, motor shaft, labyrinth seals, and the impellers compared to Trane specifications.

· Motor to be removed and sent to the factory or authorized servicer to be cleaned, tested, and baked. Motor shall be fully operable and test within operating limits prior to use. Contractor shall megaohm test on compressor motor windings. Contractor is responsible for all repairs or necessary adjustments to the motor to include balancing

· Disconnect and reconnect all electrical

· Install new purge unit

· Remove and replace mist eliminators.

· Rotor bar inspection and resistance analysis of the motor to Trane specifications

· Cleaning and inspection of the lubrication system including the oil pump, regulator, filters, heating elements, and sump. Replace oil pump, seals, motor (stator/rotor), regulator block and oil.

· Installation of new Trane compressor motor bearings

· Remove and rebuild vane assembly.

· Reassembly of the centrifugal compressor, auxiliary vapor and liquid lines, and sight glasses with all new gaskets

· Chiller evacuation and leak testing to Trane specifications – Completed after the re-tube.

· Chiller will require a brand new charge of refrigerant. Contractor to provide and charge unit

· Re-insulate machine on disturbed areas

· Pressure test with nitrogen for at least 24 hours

· Start-up and operation check utilizing and providing VA with contractor completed manufacturer’s startup procedure checklist

· Reinstall roofing, electrical, fire sprinkler systems and any other disturbed components during the repair effort

SECONDARY HEATING UNIT

· Provide new unit (HER250C 3301) heater on the north end of structure to be redundant to the existing with a new breaker, thermostat, disconnect and conduit feeder

· Startup, testing and verification of unit operation

RE-TUBE OF BOTH THE CONDENSER AND EVAPORATOR BUNDELS

· Remove heads, piping and necessary obstacles to perform re-tubing.

· Re-tube both the condenser and evaporator bundles

· Includes all labor, necessary tubes and cutting and welding if needed for tube removal.

EDDY CURRENT OF BOTH BUNDLES

· Prepare both condenser/evaporator tubes for Eddy Current (punch/acidize if necessary per manufacturer’s literature)

· Perform Eddy current of both bundles.

· Provide report of findings and discuss follow on retube

ABSORBPTION CHILLER RUPTURE DISK INSTALL

· Provide labor to install customer supplied rupture disk on Absorption chiller.

ABSORBPTION CHILLER BROMIDE FILTERING

· Filter lithium bromide to remove copper and any other impurities that could negatively impact performance per industry standards and manufacture’s literature

· Remove lithium bromide from chiller into contractor provided containers.

· Transfer lithium bromide back into the chiller to circulate to remove any bigger pieces that may be inside.

· Start-up and operation check utilizing and providing VA with contractor completed manufacturer’s startup procedure checklist

EDDY CURRENT OF BOTH BUNDLES

· All work performed by a Trane Authorized Service Agents

· Customer to remove heads and perform tube brushing on both the condenser and evaporator bundles.

· Perform Eddy current of both bundles.

· Provide report of findings and discuss next steps.

· All work will be performed in adherence to Trane’s Safety Guidelines & Requirements.

ABSORBPTION CHILLER RUPTURE DISK INSTALL

· All work performed by a Trane Authorized Service Agents

· Provide labor to install customer supplied rupture disk on Absorption chiller.

· All work will be performed in adherence to Trane’s Safety Guidelines & Requirements.

ABSORBPTION CHILLER BROMIDE FILTERING

· All work performed by a Trane Authorized Service Agents

· Start process off filtering lithium bromide to remove copper.

· Remove lithium bromide from chiller into cans.

· Will need to build a percolating tree to allow for aeration of liquid to start separating copper.

· Will need the support of the VA staff to skim off copper as it comes to the top.

· Will need the support of the VA staff to get the mechanical room cleaned up so we have enough space.

· After we are completed, transfer lithium bromide back into the chiller to circulate to remove any bigger pieces that may be inside.

· If additional repairs are needed, the contractor shall provide a detailed cost estimate and schedule including part lead times for such repairs

· All work will be performed in adherence to Trane’s Safety Guidelines & Requirements.

Site Photos

Figure 1: Location and depiction of water cooled chiller (Model Number: CVHF130GA4)

Figure 2: Location of Absorption Chiller (ABTF950)

GENERAL REQUIREMENTS

a. The contractor’s personnel, while on VA property, shall adhere to all requirements and regulations that govern the VA Health Care System and its property. Among all other requirements, the VA Health Care System and its property is now entirely smoke-free. No weapons are permitted on the premises.

b. The contractor will be required to check into and out of the engineering office space prior to and at completion of each work day. Contractor shall provide a brief report summarizing the daily objectives and completed tasks as well as any additional on site coordination.

GRAY MARKET PREVENTION LANGUAGE

c. Gray market items are Original Equipment Manufacturers’ (OEM) goods sold through unauthorized channels in direct competition with authorized distributors. This procurement is for a services contract for maintenance of medical equipment for VA Health Care Systems. No remanufactures or gray market items will be acceptable.

d. The contractor shall be an OEM, authorized dealer, authorized distributor, or authorized reseller for the proposed medical supplies, medical equipment, and/or services contracts for maintenance of medical equipment (i.e., replacement parts), verified by an authorization letter or other documents from the OEM, such that the OEM’s warranty and service are provided and maintained by the OEM. All software licensing, warranty and service associated with the medical supplies, medical equipment and/or services contracts for maintenance of medical equipment shall be in accordance with the OEM terms and conditions.

e. The delivery of gray market items to the VA in the fulfillment of an order/award/contract constitutes a breach of contract. Accordingly, VA reserves the right enforce any of its contractual remedies. This includes termination of the contract or, solely at VA’s election, allowing the contractor to replace, at no cost to the Government, any remanufactured or gray market item(s) delivered to a VA Health Care System upon discovery of such items.

NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA) RECORDS MANAGEMENT LANGUAGE FOR CONTRACTS Citations to pertinent laws, codes, and regulations such as 44 U.S.C. Chapter 21, 29, 31 and 33; Freedom of Information Act (5 U.S.C. 552); Privacy Act (5 U.S.C. 552a); 36 CFR Part 1222 and Part 1228.

The contractor shall treat all deliverables under the contract as the property of the U.S. Government for which the Government Agency shall have unlimited rights to use, dispose of, or disclose such data contained therein as it determines to be in the public interest.

The contractor shall not create or maintain any records that are not specifically tied to or authorized by the contract using Government ‘IT’ equipment and/or Government records.

The contractor shall not retain, use, sell, or disseminate copies of any deliverable that contains information covered by the Privacy Act of 1974 or that which is generally protected by the Freedom of Information Act.

The contractor shall not create or maintain any records containing any Government Agency records that are not specifically tied to or authorized by the contract.

The Government Agency owns the rights to all data/records produced as part of this contract.

The Government Agency owns the rights to all electronic information (electronic data, electronic information systems, electronic databases, etc.) and all supporting documentation created as part of this contract. Contractor must deliver sufficient technical documentation with all data deliverables to permit the agency to use the data.

The contractor agrees to comply with federal and agency records management policies, including those policies associated with the safeguarding of records covered by the Privacy Act of 1974. These policies include the preservation of all records created or received regardless of format [paper, electronic, etc.] or mode of transmission [email, fax, etc.] or state of completion [draft, final, etc.].

No disposition of documents will be allowed without the prior written consent of the contracting officer. The agency and its contractors are responsible for preventing the alienation or unauthorized destruction of records, including all forms of mutilation. Willful and unlawful destruction, damage or alienation of federal records is subject to the fines and penalties imposed by 18 U.S.C. 2701. Records may not be removed from the legal custody of the agency or destroyed without regard to the provisions of the agency records schedules.

The contractor is required to obtain the contracting officer's approval prior to engaging in any contractual relationship (sub-contractor) in support of this contract requiring the disclosure of information, documentary material and/or records generated under or relating to this contract. The contractor (and any sub-contractor) is required to abide by government and agency guidance for protecting sensitive and proprietary information.

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