> **[Statement Of Work]{.underline}**
>
> **[TDWR Site Investigation]{.underline}**
>
> **[And Technical Analysis Of]{.underline}**
>
> **[All FAA TDWR Sites]{.underline}**
>
> **[United States Of America]{.underline}**

**[General:]{.underline}**

This document covers the requirements of the Federal Aviation
Administration (FAA) for a complete technical analysis of the condition
of the HVAC systems serving all the TDWR installations throughout the
continental United States.

**[Background:]{.underline}**

The existing HVAC units are approximately 10 years old and in some cases
older. This places these units at or over their expected useful life
expectancy. In order to prioritize the systematic and efficient
replacement of these aging units, a site survey is required to document
the actual condition of the HVAC systems serving all the TDWR sites.
Since some units have already been replaced, and in some cases
modifications may have been made, a site survey by a single contractor
is necessary to establish a realistic schedule of replacement without
defaulting to letting these units fail and replacing them on an
emergency basis.

**[Location Of Project:]{.underline}**

All Federal Aviation Administration TDWR Sites

Eastern Service Area Headquarters

1701 Columbia Avenue

College Park GA 30337

**[Project Description:]{.underline}**

The work shall include, but not be limited to, furnishing all labor,
materials, equipment, and services as may be necessary to do a technical
and thorough analysis of the condition and configuration of the HVAC
systems and their associated components, ancillaries, controls, etc. The
entire analysis consists of the following:

1.  Examine the arrangement of the HVAC equipment inside and outside the
    TDWR building and compare to the drawings attached. Note any
    discrepancies or changes from the drawings.

2.  Take temperature readings of all airflows entering and leaving the
    evaporator and condenser coils. Also, surface temperatures of the
    refrigerant lines at the condensers and compressors.

3.  Record name plate data on all equipment. This shall include motors
    and assembles, such as blower coils and condensing units.

4.  Check the operation of all manual and motor operated dampers.

5.  Take super-heat and sub-cooling readings on the refrigeration
    circuits. Take pressure and temperature readings on the
    refrigeration circuits at each of the units.

6.  Investigate the control systems and remote monitoring there of.

7.  Note physical conditions of each system such as belt tensions,
    vibrations, presence of dirt, and presence of obstructions in
    ductwork or plenums and possible leakage from portions of the air
    distribution systems.

8.  Take digital pictures of all HVAC components.

9.  Take digital pictures of all related electrical and control
    equipment.

10. Assess the condition of each piece of TDWR HVAC equipment.

11. Prepare a written report for each site. Report shall include all
    data mentioned above, nameplate data, pictures, field notes and
    assessment of condition.

12. After all sites have been visited, rank all sites from 1 to 47 for
    equipment replacement. Indicate which sites fall into a critical
    category for immediate replacement. Rank all others in order that
    replacement should occur.

**[PERFORMANCE TIME:]{.underline}**

The Contractor shall complete the entire project including the 47 site
investigations, condition determinations and the final report with
recommended priorities within 18 months from the date of the notice to
proceed.

**[SCHEDULE OF WORK:]{.underline}**

All work, on each site, shall be performed during normal daytime hours
of 7:30 AM to 4:00 PM unless otherwise approved by the local contact
personnel or the Technical Contact. Contractor shall submit a schedule
of when each site will be visited, within 15 calendar days from award of
contract, for review and approval by FAA.

**[DELIVERABLES:]{.underline}**

The report shall consist of a narrative of all the findings, field
notes, instrument readings and digital pictures of the HVAC systems and
equipment at all 47 sites. Each site should have a separate chapter in
the final report for the 47 sites. Arrange the narrative, in each
chapter, into at least three parts. Detailed system description,
detailed evaluation of the condition, and detailed opinion of the
performance of the system. In a separate chapter, list the conclusions
and recommendations. An appendix should contain the field notes,
instrument readings and summations of the data in chapter arrangement.
The report shall be in Word format. Provide 6 pre-final hardbound copies
for review and comment. Provide 6 hard bound final copies and 3 copies
of the source files on a CD-RW.

**[Attachments:]{.underline}**

Drawings:

SO-D-101529-E01

SO-D-101529-E03

SO-D-101529-M01

List of TDWR sites

Directions to each site.

END OF DOCUMENT SOW