SOW_-__Frick_Chiller_Maintenenace.docx

Statement of Work Service Contract for Frick Refrigeration System and Other Packaged Units at the Agile Chemical Facility Last updated: 29 November 2017

A. Introduction This statement of work (SOW) establishes the requirements for preventive maintenance inspections for the Frick Mechanical Refrigeration System (100TR Magnesium Nitrate Brine Chiller Unit #292531) at the Naval Surface Warfare Center Indian Head Explosive Ordnance Disposal Technology Division (NSWC IHEODTD). This refrigeration system supplies the critical cooling fluid for nitrate ester manufacturing at the new Agile Chemical Facility, a multipurpose nitrate ester manufacturing plant currently being commissioned by NSWC IHEODTD to produce Otto Fuel II, a Navy torpedo fuel.

Additionally this SOW establishes requirements for preventive maintenance inspections for five other packaged units that support nitrate ester manufacturing at the Agile Chemical Plant, to include:

· Two each, Carrier air cooled chiller units Model 30RB060,

· One each, Tuthill blower unit for a packed-bed scrubber unit Pneumax II 800,

· One each, Arrow refrigerant compressed air dryer Model 3519-4, and

· One each, Ingersoll Rand heated regenerative desiccant air dryer EHD1225.

Finally, this SOW establishes requirements for replacement of the desiccant in the Ingersoll Rand heated regenerative desiccant air dryer.

B. Description of Services The scope of this contract includes the following. Additional information for each task is detailed in the following sections.

1. One year of bimonthly preventive maintenance and inspections for the Frick Ammonia chiller system at the Agile Chemical Facility

2. One year of bimonthly preventive maintenance and inspections for five other packaged units at the Agile Chemical Facility

3. Desiccant replacement for the Ingersoll Rand heated desiccant air dryer at the Agile Chemical Facility.

Task One: Bimonthly inspections and preventive maintenance of Frick Ammonia Chiller.

The Contractor shall perform six bimonthly and one annual inspections and service of the Frick Ammonia Chiller system at Building 775. The Contractor must be an authorized Frick service representative and the technicians must be qualified to work on industrial ammonia chiller systems and its associated equipment and controls. Service and inspection to be based on manufacturer’s recommendation and at a minimum include the following:

· Ammonia sensors.

· Frick Compressor (Model RWBII-76E).

1. Run compressor to ensure operation and to maintain gaskets to prevent ammonia leakage (Note: NSWC IHEODTD to provide heat load as necessary to support compressor operation).

2. Inspection of compressor units drive systems.

3. Visual inspection of the compressor, motor and associated piping and valves.

1. Verification of compressor end play is within manufacturer’s specifications

2. Test of all compressor safeties

3. Calibration check of all compressor pressure and temperature sensors

4. Verification of compressor control panel and starter operation.

· Frick Chiller

1. Verification of brine chiller operation

2. Visual inspection of Frick chiller and associated piping and valves

· Evaporative Condenser (Model: HCU-120A)

· General Inspections

2. Annual visual inspection of all insulation conditions for deficiencies

3. Annual visual inspection of all valves for rust or leak potential

4. Annual visual inspection of pipe supports

This task covers inspection and preventive maintenance activities only. This task does not cover repairs of deficiencies that require device replacement, new spare parts, or substantial labor to repair (e.g., greater than 2 hours). Instead, the Contractor shall provide a summary of all deficiencies with a cost estimate to repair. These repairs will be paid for under a modification to this contract or through a separate procurement.

Task Two: Inspection and preventive maintenance for other packaged units The Contractor shall perform six bimonthly and one annual inspections of the below packaged units at the Agile Chemical Facility. Service and preventive maintenance requirements will include the following:

· Carrier Air Cooled Chillers (2 each) Model 30RB060.

1. Inspect and clean condenser coils

2. Check moisture indicating sight glass for refrigerant loss or presence of moisture

3. Check lubricant levels

4. Check operation

5. Check crankcase heater

1. Check flow switch operation

2. Check all electrical connections and tighten as required.

3. Check all contactors and relays

4. Check refrigerant air driers for excessive pressure drop.

· Tuthill Pneumax II 800 Blower Model 5006-21L2

1. Inspect system for leaks

2. Clean and replace air filter

3. Check and maintain oil level

4. Run unit and check for unusual noise (Note: NSWC IHEODTD to assist with starting up unit)

1. Check drive belt tension, re-tension if necessary

2. Check relief valve for proper operation

3. Check motor bearing lubrication.

· Arrow Refrigerant Compressed Air Dryer – 1600 SCFM Model 3519-4

1. Visual inspection of the air dryer and associated equipment.

· Ingersoll Rand Heated Desiccant Compressed Air Dryer Model EHD1225

1. Visual inspection of the air dryer and associated equipment.

This task covers inspection and preventive maintenance activities only. This task does not cover repairs of deficiencies that require device replacement, new spare parts, or substantial labor to repair (e.g., greater than 2 hours). Instead, the Contractor shall provide a summary of all deficiencies with a cost estimate to repair. These repairs will be paid for under a modification to this contract or through a separate procurement.

Task Three: Replace desiccant in Ingersoll Rand Heated Desiccant Compressed Air Dryer Model EHD1225.

The Contractor shall remove the desiccant from the Ingersoll Rand air dryer and be responsible for its disposal. The Contractor shall re-charge the air dryer with 1500 pounds of K32 activated alumina desiccant or alternative desiccant approved by the manufacturer for use in this air dryer.

C. Contract Option Years The base year for this contract covers Task One (Bimonthly inspections and preventive maintenance of Frick Ammonia Chiller), Task Two (Inspection and preventive maintenance for other packaged units) and Task Three (Replace desiccant in Ingersoll Rand Heated Desiccant Compressed Air Dryer Model EHD1225). Up to one additional option year for Task One and Task Two are included with this contract and proposal should include pricing for base and option year.

D. Technical Point-of-Contact The NSWC IHEODTD technical point of contact information is as follows:

NSWC IHEODTD

Attention: W. Scott Buswell 3655 Nitramine Way, Building 765 Indian Head, MD 20640-5132 Email: walter.buswell@navy.mil Phone: (301) 744-1526