PRE-PROPOSAL Request for Information RESONSES 657-27-107

657-27-107JC FCA - Replace Select Hot Water Heating Systems, JC Pre-Bid RFIs
Replace Select Hot Water Generating System
Solicitation 36C25526R0166
Project 657-27-107JC
Pre-Bid RFI’S
1. The attachment labeled “ATTACHMENT SPECIFICATIONS 36C25526R0166_1” does not contain the specifications. This looks to be the Design Manual. Please provide specifications for the project.

SEE ATTACHED

2. Statement of Work, Note 2, Bullet Point #5 states “Integrate controls, instrumentation, electrical wiring, and safety devices.” Please provide more details as to what will be required for “Controls”. Automatic Controls Equipment Systems performs the control work at John Cochran. Should we reach out to Mike Kunstel @ (314) 603-2755 for more information? YES 3. The existing heat exchangers have integrated pumps build onto their “skids”. Will the new replacement exchangers require the same integration? YES. REMOVE & REPLACE ONE FOR ONE 4. Should the contractor plan on piping to the existing shutoff valves? YES 5. What is the steam pressure in the mechanical room? Will a PRV be needed? The steam pressure in the mechanical room is medium pressure, and the pressure is between 40 and 50 psi. A PRV will be needed.
6. Are Taxes to be included in the project? YES
7. Are equipment pads required for the new equipment? YES, please provide 4-inch concrete pad to all 4 Hot water generators.
8. Should the contractor plan on 2” fiberglass insulation for the piping? YES 9. What is the required leaving water temperature? 140 degree Fahrenheit. Please see the screenshot below

657-27-107JC FCA - Replace Select Hot Water Heating Systems, JC Pre-Bid RFIs

657-27-107JC FCA - Replace Select Hot Water Heating Systems, JC Pre-Bid RFIs
10. Can you Verify that this project home page is correct for the right NAISC Code 238220 Plumbing, Heating and Air-Conditioning Contractors? Yes
11. Design Manual as the project specification (Ref: CO email of 9/21/2026; Design Manual attachment (Vol. 2, Water Boilers, 7/1/2026))
On September 21, 2026 the Contracting Officer advised that the Design Manual serves as the project specification. The Manual is written for heating hot water boiler plants (burners, fuel systems, stacks, combustion air, dual fuel and N+1 plant capacity), while this project replaces four domestic hot water generators. Please identify which Design Manual sections the VA will enforce for this work, for example 2.3 (non-proprietary equipment), 6.1.3 (double-wall heat exchangers), 6.6.6 (expansion