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Provide the services of a mechanical contractor to replace in kind one (1) existing Webster burner assembly on Boiler #2 in the Boiler Plant (Building 20) at the VA Hudson Valley Healthcare System Montrose Campus. The Scope of Work also includes the replacement of the existing burner train field devices for both gas and oil and the replacement of existing field devices in the front of the boiler. All replacement of the field devices must be in kind. Replace burner air intake manifold and all associated ductwork, fittings, filters, alarms, etc. Other repairs required are listed below. All work shall be performed in accordance with attached VA specifications, VA Design Manual, and VA Boiler and Associated Plant Safety Device Testing Manual, Eighth Edition. Background: Boiler # 2 is a Victory Energy, D-type Water-tube boiler rated at 30,000 lb/hr steam (approximately 37.5MMBtu/h input). The boiler was originally installed in 2011 with a Webster model HDSXC-105C-9V-750 Burner. The Micro-Mod Parallel Positioning (Metering) Combustion Controls were installed in a separate project, in 2019. The burner is equipped for Natural Gas Firing, as well as Number 2 Fuel Oil with the option for either compressed air or steam atomization. The back-up (Propane) pilot system is via a small (portable) bottle, connected by a temporary hose- when needed. The Burner Flame Safeguard system is a Fireye YB110, with a Fireye YZ300 Expanded Annunciation Module and a Fireye 45UV5 Scanner- all original to the 2011 project. Item #1 Replace Boiler #2 Burner Assembly and Controls - The existing Webster Burner for Boiler #2 is damaged from a fire side explosion and shall be replaced in kind as listed as the same model identified in the above background (Webster model HDSXC-105C-9V-750 Burner). All existing burner fuel train field devices (for both gas and fuel oil) located downstream of their associated isolation valve shall be replaced in kind. All burner atomization field devices located downstream of associated isolation valve shall also be replaced in kind. Replace the burner air intake manifold and all associated ductwork, fittings, filters, alarms, etc. Replace all existing field devices for combustion air in kind (See Attachment D - List of field devices to be replaced). All existing field devices being replaced shall be handed over to the VA for spare parts. The existing MICROMOD and Fireye controls systems shall remain. a.) The contractor shall inspect the existing burner, field devices, and control systems serving Boiler #2 including all wiring and integrations points. Document current operational parameters and deficiencies. The VA shall provide the contractor with the as-built wiring diagrams of the existing MICRO MOD Burner Management System. Contractor shall field verify information from as-built documentation in the field and notify the VA COR of any discrepancies. b.) Provide submittals of all equipment, field devices, and materials to be installed under contract f…
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