SOWAtchD1-15PcntConceptPlan.pdf
PDF 2 MB Posted
- Attached to
- FY25 Multiple Award Construction Contract (MACC) Federal contract opportunity
- Solicitation number
- FA462025R0001
- Issued by
- Department of the Air Force
About this file
This document is a 15% Concept Plan for mechanical room renovations, specifically focusing on boiler and water heater system reconfiguration at Fairchild Air Force Base. The plan details the replacement and repositioning of multiple mechanical systems, including new boilers (Lochinvar KBX0500N for heating water and Armor AWH0500NPM for domestic hot water), a new DHW storage tank, glycol make-up feed tank, and associated expansion tanks. The design includes routing new gas lines from a new exterior gas meter, creating new concrete housekeeping pads, installing a new electrical Panel M2 fed from an existing switchboard, and repositioning combustion air and flue exhaust routes in an area well approximately 15 feet below grade. The concept plan also indicates multiple points of connection (POC) for reconnecting domestic cold water (DCW), return hot water (RHW), domestic hot water (DHW), and heating water systems to existing infrastructure.
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Text version
Area well approximately 15 feet below grade -route boiler and water heater combustion air here
Design team to reconfigure piping this outline for domestic water boiler and heating water boiler systems
DCW
(15% CONCEPT)
Make-Up Air unit (remains) -approximate location. Removal of fan motor may be necessary to bring new equipment into MER.
(E) DCW service entry
New gas line serving boilers and domestic water heater from new gas meter outside
- see Page 2. Design team to confirm size of new gas pipe with connected load.
Area well approximately 15 feet below grade - route boiler flue exhaust here. Domestic water boiler flue exhaust may also be routed here if flue length / arrangement allows. Otherwise, existing DHW boiler flue exhaust pipe may be re-used if design team calculations prove exisring flue size and arragement work with new design.
Concrete wall separator
New boilers
New DHW boiler
New DHW storage tank
New DHW expansion tank
(E) Concrete housekeeping pad
Add new concrete housekeeping pad to existing
Add new concrete housekeeping pad to existing
POC - Reconnect new DCW to (E) DCW service
POC - Reconnect new RHW, DHW, DCW to (E)
POC - Reconnect new HWR to (E) HWR
POC - Reconnect new HWS to (E) HWS
This drawing represents only a concept plan for the work in the MER. Design team to provide design using this as a guide. Equipment shown on housekeeping pad is to scale using basis-of-design heating boilers and domestic hot water boilers. Heating water boiler representation based on "Lochinvar KBX0500N". DHW boiler representation based on "Lochinvar Armor AWH0500NPM". DHW storage tank based on 48-inch diameter tank.
DHW expansion tank based on 24-inch diameter tank. Not show are space requirements for electrical disconnects, boiler circulation pumps, thermostatic mixing valves, domestic water recirculation pump, etc. It is preferable to have these items located near the equipment and accessible.
New electrical Panel M2 for DHW and heating water systems. Feed from existing switchboard.
Existing electrical Panel M
Existing switchboard
New glycol make-up feed tank
FA462025R0001
FOPR_GJKZ1149058
SOW Attachment D1 - 15% Concept Plan
Provide new gas meter and gas piping to boilers and water heater. Coordinate with Avista for meter installation. Install new gas energy meter and use with new gas sytem.
(DEMO - 15% CONCEPT)
(E) Mechanical area wells
FA462025R0001
FOPR_GJKZ1149058
SOW Attachment D1 - 15% Concept Plan
File details come from the government source that posted it. Updated .