Bard AC Unit

This government file is an Installation & Operation Manual for Eubank EAH Series Vertical Wall-Mount Heat Pumps, available in single-stage (EAH1020H-EAH1060H) and two-stage (EAH2024H-EAH2060H) models. Manufactured by Eubank, an AirX Climate Solutions Brand, these heat pumps offer high-efficiency heating, cooling, and ventilation for commercial applications, adhering to ASHRAE and UL standards. The manual provides comprehensive guidance for installers and end-users on installation, operation, troubleshooting, maintenance, and warranty. It highlights crucial safety precautions due to the use of A2L (mildly flammable) refrigerant and features a leak detection system. The document details the electronic control board, including its programming menu for various settings like system type, fan speeds, defrost timers, economizer operation, and dehumidification. It also outlines the sequence of operation for cooling, heating, and dehumidification modes, along with refrigeration protection and additional features like Modbus communication. Model identification, specifications, airflow, weights, filter sizes, refrigerant charges, and ambient operating ranges are also included. The manual emphasizes careful reading before installation, proper adherence to codes, and contact with the factory for unresolved issues.

The Q&A document for RFP 80NSSC26917719Q-1, concerning a Bard AC Unit, clarifies key aspects of the solicitation. It confirms that the requirement is for a separate AC unit, complete with its own refrigerant charge, rather than a modification to an existing one. Furthermore, the solicitation explicitly includes both the purchase and installation of the unit. This decision was influenced by local HVAC contractors who indicated a reluctance to install units not procured by them, ensuring a more streamlined and efficient process for the government entity.

This NASA Shared Services Center document recommends soliciting a brand-name justification for BARD HVAC Manufacturing for a new HVAC system, estimated to cost an unspecified amount with a performance period until December 31, 2025. The justification is based on the need for compatibility between two co-located units that cool a Global Hawk Ground control station, requiring them to be from the same manufacturer to prevent interference, streamline maintenance, and ensure compatibility. Using a different manufacturer could lead to a 3 to 6-month schedule delay, impacting up to 12 customer missions, and incur costs between $100,000 and $500,000 for replacement and loss of reimbursable funding due to incompatibility. The recommendation emphasizes avoiding significant financial and operational impacts that would arise from using an incompatible unit.

NASA Sky Range requires replacing a failed air conditioning unit in the Global Hawk Mobil Operation Facility (GHMOF) at NASA Armstrong Flight Research Center, Edwards, CA. The objective is a one-for-one replacement of a wall-mount Bard A/C unit, utilizing existing mounting, power, controls, and ducting. The new unit must be a 5-ton heat pump, 230V 3-phase 60 Hz AC power on a 50-amp circuit, with no electric heat or vent package. The contractor will install, connect, service, and test the unit. The project must be completed by December 31, 2025. Additionally, the contract includes federal requirements for disclosing the use of Artificial Intelligence (AI) during performance and specific requirements if acquiring covered AI systems or services, as defined by OMB memo M-25-22.