Attachment_02_DOW_13018323_FOS_5906_JULY242018.pdf

Project cover page

DESCRIPTION OF WORK: REPLACE (2) EA CHILLER UNITS AND ASSOCIATED

WORK AT BLDG. 5906, CAMP FOSTER, OKINAWA, JAPAN.

(WO# 13018323)

PREPARED BY:

FACILITIES MAINTENANCE BRANCH

MCB CAMP SMEDLEY D. BUTLER

UNIT 35006, FPO AP, 96373-5006

July 24, 2018

“UNCLASSIFIED/FOR OFFICIAL USE ONLY”

Prepared by

Izumi, Akira

P&E Unit.

DESCRIPTION OF WORK (DOW)

I. Purpose: Replace (2) each Air Cooled Liquid Chiller Unit and associated work.

II. Scope or Mission: The contractor shall provide all associated travel, plans, equipment, materials, labor, and necessary supervision for DESCRIPTION OF WORK: REPLACE

(2) EA CHILLER UNITS AND ASSOCIATED WORK AT BLDG. 5906, CAMP

FOSTER, OKINAWA, JAPAN.

III. Period and Place of Performance; On site work shall be performed between 15 November

2018 and 31 March 2019. The place of performance is Facility 5906, Camp Foster, Okinawa, Japan. Exact location will be shown by Contracting Officer’s Representative.

IV. Background: Replacement of Air Cooled Liquid Chiller Units required due to age of the existing equipment. The building 5906 is two-story “Ocean Breeze”. This building “FOS-

5906” was built in 2010.

V. Supporting Documents:

Attachment 1: Location Map.

Attachment 2: Vicinity Map.

Attachment 3: Existing air cooled liquid chiller units.

Attachment 4: Existing chilled water supply and return piping.

Attachment 5: Point of connections for chilled water supply and return piping.

Attachment 6: Existing safety switches.

Attachment 7: As-Built for chiller unit piping plan.

Attachment 8: As-Built for AHU schematic and HVAC piping diagram.

Attachment 9: As-Built for DDC system.

Attachment 10: Record of changes.

VI. Work Tasks: Project is under MINI MACC and MINI MACC specifications apply, as well as ASHRAE 90.1-2010. In the case of conflict between referenced standards or specifications, the more stringent shall apply.

Work Tasks listed on the subsequent paragraph may include incidental ACM/LBP removal, abatement, and disposal. If the contractor identifies suspected ACM or LBP the contractor shall be responsible for testing the material and, if positive, abating and disposing of the hazardous material at no additional cost to the government.

1. Remove existing and dispose of off base:

A. Existing (2) each air cooled liquid chiller unit.

Carrier model, M/N: 30RBA08060--B7HL (Power Supply: 460V-3PH-60Hz)

B. Existing chilled water supply and return piping. (Only in the chiller unit’s enclosure. Total approximately 100 linear feet)

2. Install new (2) each air cooled liquid chiller unit to include:

A. New Installation shall be equal or better quality as existing and the Energy

Efficiency Ratio (EER) of the replacement units will meet or exceed the current version of ASHRAE 90.1-2016.

B. No ozone depleting, class II refrigerant shall be used.

C. Air cooled liquid chiller unit capacity shall be equal to or better than existing.

(Nominal tons: 80 ton)

D. New chiller units shall be match to existing control system and proper operate.

E. New chiller unit’s condenser coil shall be Cu-fin/Cu-tube or Al-fin/Cu-tube with shall have corrosion resistant coated.

F. New chiller unit shall be equipped condenser fin guards.

G. New chilled water piping shall be galvanized steel pipe SCH-40.

H. Chilled water piping shall be replaced with new includes necessary accessories

(gate valves, strainer, thermometers, pressure gauges, flow switches, flexible connectors and air vents which shall be same standard as existing). Install per manufacturer’s recommendation.

I. Install pipe insulation to new chilled water piping. Glass wool pipe insulation (JIS

A9504, 40K) or equal rubber foam pipe insulation.

J. Install stainless steel insulation jackets to new insulated chilled water piping located at outside of building.

K. Install new metal angle pipe supports to match new chilled water piping, If change the layout of water piping. (Include concrete foundation.)

L. New metal angle pipe supports shall be galvanized steel.

M. Metal angle pipe supports shall be painted. Color to match with existing adjacent painted surfaces.

N. Enlarge the existing concrete base for chiller unit, if new chiller unit size is exceeds existing base size.

3. Electrical work to include:

A. Replace circuit breakers, safety switches, conduits, power cables, control cables & metal angle supports, as required to match new chiller unit’s electrical requirements. Install per manufacturer’s requirement.

B. All electrical wiring shall be in rigid steel or flexible conduit to meet existing standard (NEMA or equal JIS).

C. Junction boxes located outdoor shall be stainless steel to meet existing standard

(NEMA TYPE 4X or equal JIS).

D. New steel conduit runs located outdoor shall be painted.

E. Re-paint the conduit of existing safety switches. Color to match with existing adjacent painted surfaces.

VII. Operating Constraints:

1. Primary point of contact: Quintin Rivers, phone: 645-0137, E-mail: quintin.rivers@okinawa.usmc-mccs.org

Secondary point of contact: Richard Dewald (Club Manager), phone: 645-2006, Richard.dewald@okinawa.usmc-mccs.org

The contractor shall not contact the facility POC directly. The contractor shall contact the designated construction management engineer (CME) or engineering technician

(ET).

2. Replace chiller units one at a time.

3. Contact A/C shop foreman of Camp Foster Facilities Maintenance. (Mr. Yagi, phone:

645-2640/off-base: 970-2640) regarding chiller unit and mechanical room.

VIII. Submittals for Government Review:

1. See Submittal Register.

mailto:quintin.rivers@okinawa.usmc-mccs.org mailto:Richard.dewald@okinawa.usmc-mccs.org

CAMP FOSTER

LOCATION MAP (ATTACHMENT 1)

PROJECT LOCATION

BLDG. 5906, CAMP FOSTER

VICINITY MAP (ATTACHMENT 2)

PROJECT LOCATION

BLDG. 5906, CAMP FOSTER.

EXISTING AIR COOLED CONDENSING UNIT

(ATTACHMENT 3)

No. 1 Chiller

No. 2 Chiller

BLDG. 5906, CAMP FOSTER.

EXISTING CHILLED WATER SUPPLY/RETURN PIPING.

(ATTACHMENT 4)

REPLACE CHILL WATER SUPPLY AND RETURN PIPING. (INCLUDING GATE

VALVES, STRAINERS, THERMO GAUGES, PRESSURE GAUGES, FLOW

SWITCHES, FLEXIBLE CONNECTORS, AIR VENTS, PIPE INSULATIONS, SUS

METAL JACKETS AND METAL ANGLE PIPE SUPPORTS.)

POINT OF CONNECTION FOR CHILLED WATER SUPPLY AND RETURN PIPINGS.

(ATTACHMENT 5)

POINT OF CONNECTION

FOR SUPPLY AND RETURN

PIPINGS.

EXISTING DISCONNECT SWITCHES.

(ATTACHMENT 6)

RE-PAINT THE CONDUIT

OF EXISTING SAFETY

SWITCHES

AS-BUILT FOR CHILLER UNIT PIPING PLAN

(ATTACHMENT 7)

AS-BUILT FOR AHU SCHEMATIC AND HVAC PIPING DIAGRAM

(ATTACHMENT 8)

AS-BUILT FOR DDC SYSTEM

(ATTACHMENT 9)

RECORD OF CHANGES

Change Number

Location Type Description

Cover sheet

Change date

Changed from April 13, 2017 to July 24, 2018

V.

supporting documents

Added Attachment 7: As-Built for chiller unit piping plan

V.

supporting documents

Added Attachment 8: As-Built for AHU schematic and HVAC piping diagram

V.

Supporting documents

Added Attachment 9: As-Built for DDC system

VI. 2. I Added Glass wool pipe insulation (JIS A9504, 40K) or equal rubber foam pipe insulation

6 Page 9 Replace picture

Replace attachment picture

(ATTACHMENT 5)

7 Page 11 Added

AS-BUILT FOR CHILLER UNIT PIPING PLAN

(ATTACHMENT 7)

8 Page 12 Added

AS-BUILT FOR AHU SCHEMATIC AND HVAC PIPING

DIAGRAM (Attachment 8)

9 Page 13 Added AS-BUILT FOR DDC SYSTEM (ATTACHMENT 9)

10 Page 14 Added RECORD OF CHANGES (Attachment 10)

--- End of Record of Changes ---

RECORD OF CHANGES (ATTACHMENT 10)

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