Inactive on SAM.gov — responses were due 1 Sep 2026 · Small Business Set Aside - Total · Department of the Navy, DoD · Kittery, ME · NAICS 532490 · Solicitation N3904026Q1017
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Description
STATEMENT OF WORK SCOPE Title: PNSY is seeking to lease a portable, 100% make-up, Environmental Control Unit (ECU) at Portsmouth Naval Shipyard in Kittery, ME (PNSY) to continuously provide dry and tempered process air for conditioning a single space within a 2-room structure used for industrial applications. The 2nd room in the structure will not be environmentally controlled however it will be positively ventilated from the controlled room ensuring the entire structure will meet the prescribed minimum air-changes per hour. Location of Work: The structure and the ECU will both be located within the Controlled Industrial Area (CIA) at Portsmouth Naval Shipyard. REFERENCES Issues of Publications - The following documents of the issue date in effect on the date of request for proposal form a part of this specification to the extent applicable, or as specified herein. Within the specification, they shall be referred to by their basic designation only. Government General Specification for Integral Lifting Attachment Design Nongovernment Air Conditioning, Heating, and Refrigeration Institute, ARI Standard 410 Americal Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE): Handbook of Fundamentals National Electrical Code (NEC/NFPA) 70 American Society of Mechanical Engineers (ASME) Section VIII National Electrical Manufacturers Association (NEMA) 3 National Electrical Manufacturers Association (NEMA) 4 Order of precedence - In the event of conflict between the text of this specification and that of the references cited above, the text of this specification shall take precedence. Nothing in this specification, however, shall supersede applicable laws or regulations unless a specific exemption has been obtained. TECHNICAL REQUIREMENTS Building description: Refer to Attachment A, Structure Sketch. The building is a temporary structure constructed of a steel, removeable roof and steel walls. There are 4-exhaust fans located on the roof with backdraft dampers inside the structure. Both the walls and roof are minimally insulated. There are 4-man doors into the space as well as 2-overhead doors. There are 4-stairwells to the roof, each having a man door for access to the roof. The interior is open without any support walls or columns. There are 2-ovens in the Preparation Room, each having an exhaust of 55scfm ducted to the exterior of the building. A temporary wall will be installed separating the Priming Room from the Preparation Room with passive ventilation penetrations allowing the controlled air from the Priming Room into the Preparation Room thereby meeting the temperature and air change requirements. The leased ECU shall be ducted to the Priming Room space only and shall reside on the asphalt outside the structure. The wall penetration into the structure is for 20 duct. Room Requirements: The environment inside the Priming Room shall be controlled to the following: Parameter Value Units Temperature 70 90 F Humidity <60 % RH Minimum air changes: 4 /Hour The environment inside the Preparation Room shall be controlled to the following: Parameter Value Units Temperature 0 100 F Humidity NA % RH Minimum air changes: 4 /Hour Note: The Preparation Room ventilation shall be achieved via passive wall openings in the temporary wall separating the Priming Room from the Preparation Room. ECU Requirements: The ECU shall be controlled via remote thermostat and humidistat located inside the controlled space the unit is connected-to. All equipment conveying air to the industrial space shall be pre-wired with remote Emergency Stop (E-Stop) capability to provide a means to secure airflow in the event of an emergency response. The ECU shall be frame/skid mounted and meet the lifting & handling requirements as defined in this specification. The ECU shall utilize 100% ambient air make-up, as no air from the structure will be recirculated. The ECU shall provide continuous, conditioned airflow into the priming room. The ECU shall be appropriately sized for both dehumidification and temperature control based on the location of operation in Kittery, Maine. Process air inlet filtration: Moisture Separator / Demister type filtration for purging 98% of the moisture. Paper or fibrous filtration media is not acceptable. Termination Couplers: Process Air outlets for the various ventilation systems shall terminate in nominal twenty-inch diameter openings either by design or by providing the proper reducers allowing for the attachment of nominal twenty-inch diameter flexible ducting as provided by Contractor. The Contractor shall ensure that the flexible ducting furnished is sized to match the Process Air Inlets and Process Air Outlets such that the ducting can easily fit over the end fittings and/or reducers. Construction: Except as noted for a particular machine type, The ECU shall be a single integrated framed structure manufactured as a complete entity to include all devices, accessories, and fittings necessary to perform the function for which it was designed. The ECU shall be capable of continuous, year-round, outdoor, unmanned operation even at minimal loading while exposed from inclement to extremely harsh weather (e.g. deep snow, strong & gusty winds, and/or heavy rain) and varied ambient conditions ( 10 to +110 F and 0 to 100% RH). The Machines shall meet State and federal requirements for its type such as the National Electrical Code (NEC) for electrical devices / components and the American Society of Mechanical Engineers (ASME) for pressurized vessels / components. The ECU shall be portable to be transported by forklift and ruggedly constructed to endure a marine industrial environment. The Machines shall be newly manufactured or completely refurbished and factory tested within ten (10) years. Electrical: Electrical components shall conform to a NEMA standard (NEMA 3 or 4) that allows for unsheltered outdoor use of the unit. Each machine shall require only one type or source of electrical power (460 VAC +5% / three-phase / 60 hertz). The type of electrical power required (voltage and amperage) must be clearly indicated on the outside of the equipment, readily detected, and collocated with all other electrical information. The Contractor shall provide the Project Technical Liaison with the following details: Electrical power type (amperage & voltage); Type of electrical connectors (for three phase, specify whether equivalent to Duraline E1016 or not); if not, this equipment will be rejected. Breaker type/size or recommended capacity for the electrical source; and Whether the machine is furnished with over-current protection. Three phase powered (i.e. 460V) machines shall have panel-mounted male cam-lock connectors equivalent to a single Duraline E1016 for each phase if ? 285A (preferred, permits 2/0 cable) or ? 385A (minimum, but restricted to 4/0 cable). Phase Rotation: To prevent or identify an out-of-phase electrical power situation, three-phase machines shall include either: (a) a reverse phase relay and/or meter that identifies an out-of-phase condition and prevents operation especially applied to complex machinery in which such a condition could cause damage or (b) an arrow prominently displayed at an appropriate location on the machine's housing to indicate the proper direction of shaft rotation with the ability to observe a portion of the shaft after a momentary application of power (a.k.a. jog or bump). A reverse phase relay is not required nor desired for VFD motors, however, the VFD shall have a jog button to verify correct rotation. Lifting & Handling: See reference 2.1.1.1. Lifting & Handling Exception: Although considered to be machinery, being relatively lightweight and compact, The ECU is not required to be enclosed in a caged frame. However, the remaining Lifting and Handling requirements pertain in that the unit will be handled by forklift. Rigging Caution: All spaces or voids in which loose material may be purposely placed or inadvertently dropped with potential of displacement and then falling during movement or rigging shall have a means of capturing that material such as screens, netting, or false floors. For voids in which means to capture the material is impractical, an observation port shall be provided for an inspector to visually survey the space or void without use of a ladder, fall protection equipment, or special tooling. Noise Requirement: When ECU equipment is operating at full speed, noise levels shall not be over 105 dB[A] and shall be, 85 dB[A] or less at six (6) feet from the unit or frame unless a quieter noise level is specified. A hearing protection safety placard shall be posted on each machine generating more than 85 dB[A] at the unit's edge or frame. Machinery Quality Checklist (MQC): A Quality Checklist unique to the ECU shall be developed, abided by in operational checks, and copies shall accompany the machine and be sent to the Technical Liaison. The MQC shall include an operational…
Version history
SAM.gov has posted 2 notices under solicitation N3904026Q1017, oldest first.
25 August 2026 — Combined Synopsis/Solicitation (this page)
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