HVAC STATEMENT OF WORK-2020.doc

STATEMENT OF WORK

MINIMUM PREVENTATIVE REQUIREMENTS FOR

HVAC AND REFRIGERATION EQUIPMENT ON BARGES

1.0 Scope

1.1 Provide monthly preventative maintenance on air conditioning/heating equipment on up to 5 Messing and Berthing barges once each month.

1.2 Provide monthly preventative maintenance on refrigeration equipment on up to 5 Messing and Berthing barges once each month.

1.3 Provide annual preventative maintenance on up to 5 Messing and Berthing barges during the month of July.

1.4 For all air conditioning, heating, and refrigeration equipment, install durable tag on equipment; fill out tag at each inspection with the date, condition, and inspector.

1.5 Report any deficiencies noted during Preventative Maintenance inspections to the Barge Manager.

1.6 Unplanned routine and emergency corrective actions as needed.

2.0 Monthly Maintenance

2.1 Inspect air filters on HVAC units, and in ventilation ducting on YR 29. Clean or replace air filters as required.

2.2 Re-lubricate fan and motor bearings as required and as recommended by the manufacturer.

2.3 Check/clean drain pans to ensure condensate flows through condensate drain lines.

2.4 Visually inspect refrigeration systems to ensure proper operation of equipment, and physical integrity of equipment. Visual inspection should include compressors, fans, motors, coils, evaporators, defrost timers, doors, gaskets, and door heaters (where applicable).

3.0 Quarterly Maintenance – January, April, July, October

3.1 Inspect/check operation of compressor, motors, drive assemblies, fans, blowers, wiring, switch controls, temperature and safety components.

3.2 Clean/Replace air filters on HVAC units and in ventilation ducting unless previously replaced during monthly maintenance, but within a period not to exceed 3 months.

4.0 Semi Annual Maintenance – January, July

4.1 Lubricate glycol/water pumps as required, in accordance with manufacturer’s recommendations.

4.2 Check fan bearing grease line connections. Tighten as required.

4.3 Lubricate fan bearings.

4.4 Check motor lubrication. Recommendations are provided on the motor tag or unit sticker. Check bearing and motor bracket post torques.

4.5 Align fan and motor sheaves. Tighten sheave set-screws to proper torques.

4.6 Check belts, and replace if they appear worn.

4.7 Check and adjust fan belt tension.

4.8 Tighten bearing and fan wheel set-screws to the proper torques.

4.9 Tighten electrical connections.

4.10 Clean coils and inspect for evidence of freeze-up.

4.11 If the unit has inlet guide vanes, cycle the vanes from fully open to fully closed and back. Visually inspect the inlet vane assembly for proper operations. Clean and adjust the inlet vanes if necessary.

4.12 Clean entire unit including filters. Change filters as required.

5.0 Annual Maintenance - July

5.1 Inspect the unit casing for chipping or corrosion. If damage is found, clean and repaint the surface with a rust-resistant primer and finish to match existing.

5.2 Clean the fan wheels and fan shaft. Remove rust with an emery cloth and apply a coat of LPS#3 or equivalent.

5.3 Inspect condensate drain pans and drain line for foreign material that might obstruct proper drainage. Clear drains as required.

5.4 Check/adjust damper linkages, setscrews and blade adjustment for proper damper operation.

5.5 Clean damper operators.

5.6 Inspect the control and power box wiring for secure connections and insulation.

5.7 Rotate fan wheels and check for obstructions in the fan housing. The wheel should not rub on the fan housing. Adjust the center if necessary and tighten wheel set-screws to the proper torques.

5.8 Check condition of gasket and insulation around unit, door, and dampers.

5.9 Inspect flex connections for cracks or leaks. Repair or replace damage material.

6.0 As Required

6.1 Routine and emergency “call-out” repairs/replacement of HVAC and refrigeration equipment on up to 5 Messing and Berthing barges. For routine repairs, an on-site response time of 24 hours is required. For emergency repairs, an on-site response time of 4 hours is required.

7. HAZARDOUS ENERGY CONTROL:

7.1 Contractors and non-PNS government agencies (NPGAs) are hereby informed that their employees or representatives present on property under Portsmouth Naval Shipyard cognizance must adhere to Federal OSHA requirements for hazardous energy control IAW 29 CFR 1915.89 and must follow Hazardous Energy Control (HEC)procedures as identified in NAVSEA’s Occupational Safety, Health, and Environment Corporate Manual(OSHECM) Chapter 250 (latest revision), Hazardous Energy Control (HEC) when performing work under PNS contract. All HEC work to be performed by Contractors and NPGAs requires that PNS Technical Points of Contact (TPOC) and/or Contracting Officer’s Representatives (CORs) be notified of the HEC scope of work prior to starting work. Any changes or deviations in the initial scope of HEC work requires the PNS Technical Points of Contact (TPOC) and/or Contracting Officer’s Representatives (CORs) be informed of the change/deviation. For repair/maintenance tasks performed in this contract, all work involving HEC will be accomplished utilizing “single source/single employee” principles as detailed in Appendix 250, B-1 through B-3 of OSHECM Chapter 250.

7.2 HEC locks shall have red bodies and meet the requirements of OSHECM Chapter 250, which includes having labels, or tags affixed to the HEC locks to identify who installed the HEC lock(s) and to provide a point of contact telephone number. HEC locks shall be provided by the Contractor or NPGA for their employees use.

7.3 Contractors and non-PNS government agencies (NPGAs) may obtain electronic copies of OSHECM Chapter 250 (latest revision) by using the following web site:

https://www.navsea.navy.mil/Portals/103/Documents/NNSY/OSHECM%20Chapter%20250%20Hazardous%20Energy%20ControlREVA22Nov2016.pdf?ver=2017-08-18-085722-927

7.4 For service and rental contracts involving hazardous energy control work, the contractor or Non-PNS Government Agency (NPGA) shall submit to the contracting officer a certification of compliance that their personnel who need to work under hazardous energy controls have been trained IAW 29 CFR 1915.89 and must follow Hazardous Energy Control (HEC) procedures as identified in NAVSEA’s Occupational Safety, Health, and Environment Corporate Manual (OSHECM) Chapter 250 (latest revision, Hazardous Energy Control (HEC) program requirements). Contractors and NPGAs shall ensure that all their employees present on property under Portsmouth Naval Shipyard cognizance are aware of HEC program requirements. In addition, the contractor must agree and sign the Hazardous Energy Control Contractor Compliance Certification Document, Appendix 1.

7.5 Contractors must have experience working with ungrounded power.