Foreword, Features, Approvals, Grounding

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

NW 37-670 specifications

A.O. Smith NW 37-670 is a highly regarded water heater that stands out in the residential water heating market. Renowned for its efficiency and reliability, this unit offers homeowners a perfect blend of advanced technology, high performance, and convenience.

One of the main features of the A.O. Smith NW 37-670 is its high recovery rate, which allows for rapid heating of water to meet the demands of a busy household. With a 37-gallon tank capacity, this model can effectively supply hot water for various applications, such as showers, dishwashing, and laundry. The design incorporates a powerful heating element that ensures the water is heated quickly, thus minimizing wait times and improving overall comfort.

Efficiency is a cornerstone of the NW 37-670's design. This water heater features an impressive Energy Factor (EF), which translates to lower energy bills for homeowners. A.O. Smith has integrated advanced insulation materials to maintain water temperature longer, reducing the energy required for reheating. This not only helps in cutting down costs but also promotes eco-friendliness, making it an excellent option for environmentally conscious consumers.

The technology behind the A.O. Smith NW 37-670 includes a state-of-the-art electronic control system. This system continuously monitors the unit's performance and adjusts operations to optimize efficiency. Additionally, the water heater is equipped with a robust diagnostic system that provides real-time feedback, making it easier for homeowners to identify any potential issues before they escalate.

Durability is another defining characteristic of the NW 37-670. Constructed with high-quality materials, including a glass-lined tank for added protection against corrosion, this water heater is designed to last for years with minimal maintenance. The anode rod further enhances its longevity by reducing the potential for rust and increases the lifespan of the unit.

Installation and maintenance are straightforward due to the user-friendly design of the A.O. Smith NW 37-670. It can fit into various spaces, making it a versatile option for both new constructions and replacement projects. A.O. Smith also provides comprehensive support and warranty services, ensuring customer satisfaction and peace of mind.

In summary, the A.O. Smith NW 37-670 is a top-tier water heater that combines efficiency, advanced technology, and durable construction. With its substantial capacity, rapid recovery rate, and modern control features, it is an excellent choice for any home looking for dependable hot water solutions.