B09_Amendment_0002_Answers_to_RFIs_6_2_25_0002.docx

Washita Battlefield NHS (WABA) RFP 140P1325Q0034 Replace HVAC Units Amendment 0002 – RFIs and RFI Answers Issued:6/10/2025 All RFIs received following the instructions in the solicitation by the due date and time specified are in this document along with answers provided by the Government.

· B08 Attachment Schedule / Bid Schedule: Building Materials / Equipment Line 7, 5- ton package units – roof mounted equipment 240VAC / heat pump 36,000 btu.

Question: A 5-ton unit is 60,000 btu, (Based on 12,000 btu per ton) 36,000 is 3 tons cooling.

A The current package units are 5-ton units.

Question: Are these 240 VAC units single phase or 3 phase.

A It is unknown if these are single or 3 phase. The data plate says 208/230v 1PH 60HZ.

· Does the Government have any maintenance records with the Brand, Model or Serial number of the existing equipment to be replaced. This information would be helpful to ascertain compatibility with new units.

A Existing Brand: Train - Model Number: 2WCC3060A1000AA - Serial Number 6411YP89H

· On standard form 1442 page 8, # 5 Test – Commissioning, Does the Government have a programmable thermostat specified?

A. No specified thermostat. Just one that is compatible with the two package units that are Not being replaced. These units are Trane, model number 4WCC4060A1000AA, SN 222111824L

· On standard form 1442 page 3, Optional Form # 336 (4-86) Item “A” 00010 Product / service code 4530 Fuel Burning.

Question: Defense Logistics Purchase by D.L.A. Refers to Flue Burning Unit. Heat Pumps are total electric with 20 KW back up electric heat strips and are on fossil flue burning appliances unless they are asking for dual flue and they are only available for residential applications and are single phase electric.

A The current units are all electric and the new units will be electric.

· On standard form 1442 page 4.

· DIVISION 01 - GENERAL REQUIREMENTS

· PART 1 – GENERAL

· ITEM 1 - DESCRIPTION OF WORK

· 1.1 Background: This project involves the replacement of six (6) existing roof mounted HVAC systems with 5-ton

· R410a heat pump package units with 20kw electric heat strips installed.

Please note: All the new units are 454B Refrigerant.

A If 454B refrigerant is what the new units come with, that is acceptable.

Clarification: On page 16, 52-225-1. Can we get a clarification on the for Buy American Act – Construction and Materials, as it pertains to HVAC equipment. There is also a BABA, Build American Buy American Act.

A 52.225-1 is not on page 16, however, 52.225-9 Buy American -Construction Materials (Oct 2022) is. The Clause defines COTS as commercially available off the shelf (COTS). In accordance with 41 U.S.C. 1907, the domestic content test of the Buy American statute is waived for construction material that is a COTS item, except that for construction material that consists wholly or predominantly of iron or steel or a combination of both, the domestic content test is applied only to the iron and steel content of the construction materials, excluding COTS fasteners. (See FAR 12.505(a)(2)). A 5-ton HVAC unit would be something considered commercially available off the shelf because anyone can buy one if it were in stock. Considering the government is no expert on the content of what HVAC units a contractor may propose, the contractor must determine if what they are offering is wholly or predominantly iron or steel or the combination of both. It is highly likely that the COTS 5-ton units’ contractors will likely provide, do have some iron and steel or even a combination of both, but it is not likely the units will be wholly or predominantly made of iron or steel as there are wires, coils, or condensers, which may be aluminum or copper.