Government Contract | Iowa
Condensing Boilers - LHS

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Bid Information

Bid Alert No: 00000531233

Bid Title: Condensing Boilers - LHS

Agency Bid No. Title: B7427

Received Date: 04/01/2016

Close Date: 04/11/2016

Purchase Type: Not Stated

Delivery Point: Des Moines Public Schools, Des Moines, Iowa

Delivery Date: Not Stated

Special Notices: Warranty Required


Specifications include, but are not limited to:FORCED-DRAFT, FIRE-TUBE CONDENSING BOILERSA. Description: Factory-fabricated, -assembled, and -tested, fire-tube condensing boiler with heat exchangersealed pressure tight, built on a steel base, including insulated jacket; flue-gas vent; combustion-air intakeconnections; water supply, return, and condensate drain connections; and controls. Water-heating serviceonly.B. Heat Exchanger: Nonferrous, corrosion-resistant combustion chamber.C. Pressure Vessel: Carbon steel with welded heads and tube connections.D. Burner: Natural gas, forced draft.E. Blower: Centrifugal fan to operate during each burner firing sequence and to prepurge and postpurge thecombustion chamber.1. Motors: Comply with NEMA designation, temperature rating, service factor, and efficiencyrequirements for motors specified in Section 230513 "Common Motor Requirements for HVACEquipment."a. Motor Sizes: Minimum size as indicated; if not indicated, large enough so driven load willnot require motor to operate in service factor range above 1.0.F. Gas Train: Combination gas valve with manual shutoff and pressure regulator.G. Ignition: Spark ignition with 100 percent main-valve shutoff with electronic flame supervision.H. Casing:1. Jacket: Sheet metal, with snap-in or interlocking closures.2. Control Compartment Enclosures: NEMA 250, Type 1A.3. Finish: Baked-enamel or Powder-coated protective finish.4. Insulation: Minimum 2-inch-thick, mineral-fiber or polyurethane-foam insulation surrounding theheat exchanger.5. Combustion-Air Connections: Inlet and vent duct collars.

Bid Related Documents

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Product Codes: 82008, 82012

Agency Information

Issuing Agency: Des Moines Public Schools

State: Iowa

Agency Type: State and Local

Contact: Doug Ohde 1917 Dean Avenue, Des Moines, Iowa, 50316

Phone: 515-265-8702

Fax: 515-265-8702




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