CAUTION

The water heater and individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of the system at test pressures in excess of ½ psi (3.5 kPa). The water heater must be isolated from the gas supply piping system by closing its manual shutoff valve during any pressure testing of the gas supply system at test pressures equal to or less than ½ psi (3.5 kPa). The supply line must be capped when not connected to the water heater.

If copper supply lines are used, they must be internally tinned and certified for gas service.

Figure 24. Drip Leg

The gas supply lines must meet all requirements of the National Fuel Gas Code ANSI Z223.1 (Latest Edition), or in Canada CAN/CGA B149.1 Natural Gas Installation Code (Latest Edition) or CAN/CGA B149.2 Propane Installation Code (Latest Edition).

GAS METER SIZE – NATURAL GASES ONLY

Be sure that the gas meter has sufficient capacity to supply the full rated gas input of the water heater as well as the requirements of all other gas fired equipment supplied by the meter. If the gas meter is too small, ask the gas company to install a larger meter having adequate capacity.

GAS PRESSURE REGULATION

Main line gas pressure to the water heater should be between a maximum 14 inch (3483.8 Pa) W.C. and a minimum supply pressure as shown on the rating plate. The inlet gas pressure must not exceed the maximum value. In some installations, a regulator sized for the input rating of the water heater will need to be installed just ahead of the inlet gas connection to the water heater to reduce excess gas pressure or surges in gas pressure.

BEFORE PLACING THE WATER HEATER IN OPERATION, CHECK FOR GAS LEAKAGE. USE SOAP AND WATER SOLUTION OR OTHER MATERIAL ACCEPTABLE FOR THE PURPOSE OF LOCATING GAS LEAKS.

WARNING

DO NOT USE MATCHES, CANDLES, FLAME OR OTHER SOURCES OF IGNITION FOR THIS PURPOSE.

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Bradford-White Corp EF operation manual GAS Meter Size Natural Gases only, GAS Pressure Regulation

EF specifications

Bradford-White Corporation, a leader in water heating technology, has long been recognized for its innovation and quality in the industry. One of its standout offerings is the EF series, a line of high-efficiency water heaters designed to meet the growing demand for energy efficiency and reliable performance in residential and commercial applications.

The Bradford-White EF (Energy Factor) series features advanced, state-of-the-art technologies that optimize energy use while providing consistent hot water availability. One of the most notable aspects of these systems is their impressive energy efficiency ratings. The EF series utilizes cutting-edge insulation materials and advanced combustion technology, helping to minimize heat loss and reduce energy consumption. Customers benefit not only from lower utility bills but also from a product that is environmentally friendly.

Key features of the EF series include a patented Hydrojet Total Performance System, which enhances efficiency by reducing sediment buildup within the tank. This system contributes to a longer lifespan and optimal performance of the water heater, ensuring users have reliable hot water even during peak demand periods. Additionally, the EF series incorporates an intelligent electronic control system that monitors and adjusts the operation of the unit, further maximizing efficiency and providing precise temperature control.

Safety is another major consideration in the design of the EF series. Bradford-White has integrated advanced safety features, including a flame arrestor and a robust pressure relief valve, which ensure that the units operate safely and adhere to the highest industry standards. This commitment to safety demonstrates Bradford-White’s focus on providing peace of mind to homeowners and business owners alike.

Ease of installation and maintenance is a significant advantage of the EF series. Its compact design allows for flexible installation options, making it suitable for a variety of spaces, including tight or hard-to-reach areas. Moreover, the EF model is designed for simplified maintenance, which helps reduce labor costs and downtime for both homeowners and professionals.

Overall, the Bradford-White EF series is an excellent choice for those seeking a reliable, efficient, and safe water heating solution. With a blend of innovative technology, energy efficiency, and user-friendly features, the EF series exemplifies Bradford-White’s commitment to quality and customer satisfaction, making it a trusted name in the water heating industry.