Brand Name or Equal - WaterFurnace Model: UBH015R for B3631 & B3635 - Turnkey Replacement

The 502d Contracting Squadron (502CONS), on behalf of the 502d Civil Engineer Squadron (502CES), is conducting market research to determine:

• The availability and technical capability of industry sources (small and large businesses) to furnish and install 48 each 1.25-ton Dedicated Outside Air System (DOAS) Water-Source Heat Pumps (WSHP) which meet strict salient dimensions and environmental characteristics.


• The appropriate competitive acquisition strategy, including small business socio-economic set-aside determinations (RFO Part 19 Small Business - Rule of Two).


• Standard commercial practices, lead times, supply chain constraints, warranty terms, and pricing structures IAW RFO 10.002(b) Market Research.

The contractor shall provide all personnel, management, equipment, tools, rigging, materials, and supervision necessary to execute the turnkey removal and replacement of 48 ceiling-suspended DOAS WSHP installed above exterior breezeway ceilings in B3631 and B3635 at JBSA Ft Sam Houston (FSH) San Antonio Military Medical Center (SAMMC) Dormitory Annex. This new requirement is projected to be a Firm-Fixed Priced (FFP) Purchase Order as a Commodity (Procurement) with incidental Services (Removal and Installation) buy.

Key Salient Characteristics:

• Capacity: 1.25 Tons (15,000 BTUH nominal), airflow of 160 L/s (~340 CFM) at 50 Pa ESP.


• Configuration: Horizontal, ceiling-plenum suspended, right-hand return air arrangement.


• Access Dimension Constraint: Existing units are installed above metal panel breezeway ceilings accessible through structural door openings measuring approximately and replacement units must physically fit through these envelope openings without requiring structural building demolition.


• Refrigerant: Low-GWP refrigerant (e.g., R-454B or R-32). R-410A is strictly prohibited.


• Hydronic Pre-Heat Coil & Reheat: Integral 3.75 kW water-source pre-heat coil (3-way, 2-position control valve) and factory hot gas reheat (HGRH) / hot gas bypass (HGBP) for 100% outside air continuous dehumidification.


• Controls Integration: Complete integration into the installation's central Building Automation System (BAS via BACnet IP/MSTP).