Specifications - State of Delaware

SECTION 238240 - PROPELLER UNIT HEATERS
PART 1 - GENERAL
1.01 SUMMARY:
A. This Section includes propeller unit heaters with electric-resistance coils.
1.02 REFERENCES:
A. Applicable Standards:
1. American Society of Heating, Refrigerating and air-Conditioning Engineers (ASHRAE):
a. 33 - Method of Testing Forced Circulation Air Cooling and Heating Coils (ANSI).
2. NFPA International (NFPA):
a. 70 - National Electrical Code.
b. 90A - Installation of Air Conditioning and Ventilating Systems.
3. Underwriters Laboratories Inc. (UL):
a. 823 - Electric Heaters for Use in Hazardous (Classified) Locations.
b. 2021 - Fixed and Location-Dedicated Electric Room Heaters.
1.03 SUBMITTALS:
A. General: Submit as specified in SECTION 230500 - COMMON WORK RESULTS FOR
HVAC.
B. Product Data: Include rated capacities, operating characteristics, furnished specialties, and
accessories for each unit type and configuration.
C. Shop Drawings: Submit the following for each unit type and configuration:
1. Plans, elevations, sections, and details.
2. Details of anchorages and attachments to structure and to supported equipment.
3. Wiring Diagrams: Power, signal, and control wiring. Differentiate between
manufacturer-installed and field-installed wiring.
4. Equipment schedules to include rated capacities, operating characteristics, furnished
specialties, and accessories.
D. Operation and Maintenance Data: For propeller unit heaters to include in operation and
maintenance manuals.
1.04 QUALITY ASSURANCE:
A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70,
Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for
intended use.
PART 2 - PRODUCTS
2.01 MANUFACTURERS:
A. Manufacturers: Subject to compliance with requirements, provide products by one of the
following or an approved equal:
1. Brasch Manufacturing Co., Inc.
2. Carrier Corp.
3. Chromalox.
2.02 UNIT HEATERS:
A. Description: An assembly including casing, coil, fan, and motor in horizontal discharge
configuration with adjustable discharge louvers.
B. Comply with UL 2021.
DEAN238240.DOC 238240-1