Attch_1_Statement_of_Work.pdf

Statement of Work (SOW)

Replace HVAC System, Bldg 135

Project Number: (CZQZ13-1080)

Cannon Air Force Base, New Mexico

26 June 2013

DESCRIPTION OF WORK: The work elements for this project scope are listed below:

GENERAL:

a) The Contractor shall submit a phasing plan for approval prior to beginning work. The building must be occupied during construction. The Contractor must supply temporary heat and power to keep the building functioning in seasonal weather.

b) Contractor shall verify all existing conditions to ensure accuracy of plans.

c) HVAC control system graphics shall be uploaded to the front end computer in B371 at least a week prior to final for functionality review by the base EMCS shop.

d) Meet with the base EMCS technicians during final troubleshooting to ensure the facility is working properly.

MECHANICAL REQUIREMENTS:

e) Connect a new hot water supply and return lines to existing hot water loop in the mechanical room to run to the new AHU-2.

f) Replace pressure gauges on the chilled water line and hot water lines surrounding the pumps according to design.

g) Replace the three-way valve on the hot water line for AHU-1 and reuse the motorized actuator.

h) Replace the bleeder valve on the hot water line.

i) Replace all chilled and hot water pumps and motors with new as show in equipment schedule.

Replace currently insulated rusty piping connected to pump. Insulate pump heads and piping.

j) Demo the existing AHU-2 and replace with new AHU-2 to meet the equipment schedule requirements. Reuse the gooseneck for the outside air and fit to new AHU-2. Connect new hot water line and existing chilled water line to new AHU-2.

k) Modify existing steel support structure to fit new air handler. Realign the structure to line up with the return duct.

l) Replace all exterior ductwork with aluminum dual wall duct with built-in 2” thick insulation and connect to existing interior ductwork.

m) Change the motor speed of the bathroom exhaust fans to match drawing airflow.

n) Install sensors as indicated on drawings.

o) Clean existing supply ductwork using high velocity air flow. Capture expelled dust at the diffusers with some sort of collection system.

p) Install a new Alerton 1188 controller (#3 in drawings) and wire according to contract documents.

FA4855-13-B-0005

Attachment 1

q) Install an “Emergency HVAC System Shut-off Switch”. The switch shall be a maintained contact push button type with a lift plate to prevent accidental switching. Include an engraved stainless steel plate to label the switch.

r) Test and Balance - Perform a test and balance to set up the building HVAC system to provide airflow indicated on the drawings. Also rebalance the chilled water system and hot water system.

s) Commission building to check programming logic and ensure sequence of operations is followed. Submit a report to outline deficiencies and actions taken to correct deficiencies.

t) Update EMCS graphics for the entire building utilizing existing points and new AHU-2 points based on the attached General Requirements Guide for DDC System Installation and Control.

u) Program the EMCS system to read the existing electric meter.

ARCHITECTURAL REQUIREMENTS:

v) Install a chain link fence surrounding AHU-2 to include an entrance gate and a chain link top .

PERIOD OF PERFORMANCE: This work is to be completed in 120 calendar days or less after Notice to Proceed (NTP). Weekend and federal holiday work is not be permitted unless otherwise approved by the Contracting Officer (CO).

MEETINGS: The Contractor shall conduct one project kickoff meeting within one week of NTP. The Contractor shall prepare and distribute meeting minutes from each meeting held on site.

GOVERNMENT FURNISHED PROPERTY: Upon the Contractor’s request, the Government will provide electronic and/or hard copies of available documents and correspondences pertinent to the Work. In addition, the Government will provide assistance with base passes, identification badges, and registrations.

SUBMITTALS. The Contractor shall submit for approval all technical data and material samples for all proposed building materials and equipment in accordance with Section 01 33 00: Submittal Procedures as per attached Schedule of Material Submittals.

FA4855-13-B-0005

Attachment 1