boilerspec 1.pdf

This document is a Preliminary Submittal Data package for a VA Hospital project submitted by Modular Comfort Systems, Inc. to Towne Engineering. The submittal covers the specification and installation of two Fulton Vantage 4.0MM BTU/Hr input hydronic heating boilers—one natural gas-fired and one dual-fuel (natural gas and #2 oil-fired)—for the facility's heating system.

The specification establishes comprehensive technical and performance requirements for the boilers and their installation. Key product specifications include: maximum working pressure of 160 PSI with 250°F design temperature; forced draft combustion boiler design with direct venting capability (AL-29-4C material, 14" diameter exhaust vent for runs up to 50'); firetube design with SAF 2205 Duplex Stainless Steel condensing sections; minimum fuel-to-water efficiency of 93% at full rated input capacity and 99% at low fire (natural gas), and 88% at full rated capacity (oil); full modulation capability with 5:1 turndown ratio (natural gas) and 2:1 ratio (oil); CO emissions below 100 PPM corrected to 3% O₂ and NOx below 75 PPM (natural gas) or below 35 PPM CO and 70 PPM NOx (dual fuel); and no minimum return water temperature requirement for natural gas operation. The boiler shall be completely factory-assembled, tested, and packaged as a self-contained unit with a maximum width of 40.5" and maximum height of 76.25" to fit through a 42" doorway. Installation requirements mandate a level continuous concrete pad (minimum 3-1/2 inches high), manufacturer-provided field representative services for startup and operator training, and National Board of Boiler and Pressure Vessel Inspectors certification. Warranty provisions include one-year coverage from start-up or 18 months from factory shipment for defective parts, 10-year thermal shock warranty for the pressure vessel in closed-loop systems, and 5-year flue gas corrosion warranty for heat exchangers. The submittal includes product data sheets, dimensional drawings, boiler specification documents, and technical performance curves for both natural gas and oil fire operation modes.