FOREWORD
APPROVALS | INSTALLATION CODE REQUIREMENTS |
These designs comply with requirements of Underwriters Laboratories and bear the U.L. label on the cabinet.
All models are built to the standards of Section lV of the American Society of Mechanical Engineers. Boiler and Pressure Code, inspected and identified by this symbol.
In addition to these instructions, the equipment shall be installed in accordance with those installation regulations in force in the local area where the installation is to be made. These shall be carefully followed in all cases. Authorities having jurisdiction should be consulted before installations are made.
In absence of local codes the installation must comply with the latest edition of the National Electrical Code, NFPA 70. Copies of this document are available from the National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02269.
GROUNDING
The ASME plate is located on the tank above the cleanout opening. When specified, the National Board of Boiler and Pressure Vessel Inspectors listing will be furnished and identified by an NB number on the ASME plate.
FEATURES
Grounding and electrical wiring connected to the boiler must conform to the latest edition of the National Electric Code, NFPA 70.
Figure 1, below, is an illustration of a typical model NW/Commercial Electric Hot Water Boiler with the features called out.
FIGURE 1
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