Questions and Answers- 24 Sep 26.pdf

This is a Questions and Answers document addressing clarifications on controls and equipment for a federal contract opportunity involving HVAC systems management and maintenance.

The document contains eight questions and answers organized by equipment category: Controls/Liebert IRC, Liebert CRV/IRC Equipment, Multistack Chiller, and related systems. Key technical details include: the centralized management system is specified as a BAS system using Niagara Tridium V4.13.3.48; the Liebert IRC controllers are existing and require programming/configuration under the contract scope; a controls point list and Sequence of Operations are not available (N/A); all 12 existing Liebert CRV units are currently operational despite some error codes noted in the SOW; and equipment schedule details including serial/instance numbers and nameplate information for the 12 CRV units and 2 IRC controllers are referenced in an attachment. The document also addresses a failed CRV top fan component, for which serial and model information were provided during a site walkthrough, and requests equipment nameplate information and photographs for an existing Multistack chiller, with detailed specifications referenced in a supporting attachment. The answers indicate that redundancy and failover testing protocols are controlled through the Liebert IRC system, though the specific network control method (BAS/BMS versus Liebert internal unit-to-unit network) is referenced but not explicitly confirmed in the provided responses.