Statement of Work docx
Updated
A PDF document (156 KB) attached to HVAC Unit Replacement, from the National Oceanic and Atmospheric Administration. Due Nov 20, 2026, 2:00 PM (UTC-8).
File name: SOW_1305M327Q0010_docx.pdf
The full file is for paid members, or buy this bid alone.
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STATEMENT OF WORK
Heating, Ventilation, and Air Conditioning (HVAC) Replacement
1. BACKGROUND:
The current units have excited life expectancy and are operating unreliably. Each Next Generation Radar (NEXRAD) site has a Fibrebond manufactured concrete shelter building that has two 5 ton BARD wall HVAC units mounted side by side.
2. GENERAL INTENTION:
To remove and install two (2) wall mounted HVAC units and controls at three (3) sites.
3. GENERAL REQUIREMENTS:
The contractor shall provide all supervision, labor, tools, materials and equipment necessary to perform work as stated. All work and materials supplied shall be in accordance with these instructions, manufacturer’s specification, all applicable federal, state, local, Occupational Safety and Health Administration (OSHA), U.S. Environmental Protection Agency (EPA), National Electrical Code (NEC) National Fire Protection Association (NFPA), building and facilities codes and criteria and accepted trade and industry standards.
The Contractor Shall:
3.1. Safely remove and properly dispose of the existing NEXRAD Bard units. 3.2. Furnish and install two Bard, or name-brand equivalent, wall-mounted AC units. The following are equivalent salient characteristics for the name-brand or equal HVAC unit:
● Self-contained, air cooled, exterior wall mount unit
● 11.0 Energy Efficiency Ratio (EER)
● Electronically Commutated Motor (ECM) Fan Motors with Overload Protection
● Scroll Compressors with liquid line filter driers
● 5 ton, 230/208/3 phase 60 Hertz (HZ)
● Economizer controlled with dry bulb control
● Filter Pressure Switch
● Units must fit existing cast in place concrete openings without modifications. Building specs below.
Fibrebond manufactured concrete shelter building mounting specs:
● Supply duct to fit a 30" X 10 1/2" opening
● Return duct to fit a 30" X 16" opening.
● Distance between supply and return is 29 3/4"
3.3. Install a new Bard MC 4002 Lead/Lag controller or newer equivalent model for above units and integrate AC alarms with the NEXRAD alarm system at each site. The following are equivalent salient characteristics for the name-brand or equal HVAC controller:
● Input power: 18 to 32VAC, 60/50Hz, power is supplied from A/C #1 and/or A/C #2. ● Isolation circuitry: no line or low voltage phasing required.
● Backup power: connection for -24VDC or -48VDC (-20 to -56V) maintains microprocessor
The beginning of the document. Download the full file to read on.