final bid specs 09328.pdf - Freese and Nichols, Inc.

23 82 39.16 PROPELLER UNIT HEATERS
1.00 GENERAL
1.01 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary Conditions
and Division 1 Specification Sections, apply to this Section.
1.02 SUMMARY
A. This Section includes propeller unit heaters.
1.03 COORDINATION
A. Coordinate layout and installation of propeller unit heaters and suspension system components
with other construction that penetrates ceilings or is supported by them, including light
fixtures, HVAC equipment, fire-suppression-system components, and partition assemblies.
2.00 PRODUCTS
2.01 MANUFACTURERS
A. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
1. Airtherm Manufacturing Company.
2. Chromolox
3. Engineered Air.
4. International Environmental Corp.
5. Ruffneck Heaters, Starozik Industries Ltd.
6. Trane Company (The); North American Commercial Group.
2.02 UNIT HEATERS
A. Description: An assembly including casing, coil, fan, and motor in vertical discharge configuration
with radial louver diffuser in draw-through configuration and horizontal discharge configuration
with horizontal, adjustable louvers in blow-through configuration.
2.03 MATERIALS
A. Casing: Galvanized steel, with removable panels.
B. Cabinet Finish: Bonderize, phosphatize, and flow-coat with baked-on primer and manufacturer's
standard paint applied to factory-assembled and -tested propeller unit heater before
shipping.
2.04 ELECTRIC-RESISTANCE HEATING ELEMENTS
A. Nickel-chromium heating wire, free from expansion noise and 60-Hz hum, embedded in
magnesium-oxide insulating refractory and sealed in high-mass steel or corrosion-resistant
metallic sheath with fins no closer than 0.16 inch (4 mm). Element ends shall be enclosed in
Propeller Unit Heaters 23 82 39.16 - 1
DPR09328