Observe burner operation through the sight glass located on the combustion insert mounting flange. Normal burner operation should ignite smoothly, without evidence of coughing or huffing upon ignition. The burner flame should be a blue flame near the burner surface in a uniform flame pattern. Occasional yellow or white streaks are normal.

For models with Hot Surface Ignition System

Note: On higher input models using metal fiber mesh burner (serial number “CK” and later) a red glow from the burner surface is normal.

Verify Minimum Gas Supply Piping Requirements of:

N

Reconfigure gas

Minimum 1" NPT for EF100T399, all others use ¾"

 

supply piping

NPT. (Schedule 40 black Iron Pipe recommended).

 

 

 

 

Y

Inadequately

 

 

 

 

 

 

 

 

sized regulator.

 

 

 

 

 

 

With manometer, check inlet

gas pressure. Is it stable

between 7" & 14" W.C. static?

(heater not running)

(see illustrations at right)

Y

Does inlet gas pressure drop more than 2" W.C. during burner ignition?

N

N

Y

N

 

Is gas supply pressure

 

regulator adjustable to Y

Adjust gas

maintain proper and

 

supply regulator

stable setting?

 

WARNING

Removing screw from

inlet gas pressure tap will immediately allow gas to flow from pressure tap.

Venturi

adjustment

Inlet gas

pressure tap

WARNING

Replace ignition module.

120 volt potential

(see “Ignition Module

exposure. Use caution

Replacement Procedure”)

making voltage checks to

 

avoid personal injury.

 

 

N

Do you see the igniter glowing through burner N

site glass during the warm up period?

Y

Is igniter resistance less than 150 Ohms N

(cold)? (see check igniter

illustration)

Y

Proceed to next page

Refer to ignition module illustration below,

is there 120VAC across terminals

P6(1) and P6(2)?

(Note: Igniter LED must be lit during this check).

Y

IGNITION MODULE

 

Volt meter set to

 

OHM setting

Replace

 

hot surface igniter.

 

(see “Hot Surface Igniter

Meter probe

Replacement Procedure)

Hot surface

igniter

CHECK IGNITER

RESISTANCE 43

43

Page 42 Page 44
Page 43
Image 43
Bradford-White Corp EF100T150(E)*(N, X)(A)(2), EFR160T120*(EN Supply piping, Gas pressure. Is it stable, Maintain proper
Page 42 Page 44

EFR160T120*(EN, EF100T250(E)*(N, EF100T399(E)*(N, EF100T300(E)*(N, EF60T125(E)*(N specifications

Bradford-White Corporation is a leading manufacturer of water heating solutions, known for its high-quality and durable products. Among its extensive product lineup, the EF60T150(E)*(N), EF100T150(E)*(N), EF60T199(E)*(N,X)(A)(2), and EF100T199(E)*(N) models stand out for their impressive features and technologies that cater to both residential and commercial water heating needs.

The EF60T150(E)*(N) model is designed for medium to large households, providing a reliable hot water supply. It features a 60-gallon tank with a first-hour delivery rate that ensures ample hot water, making it ideal for simultaneous usage in multiple applications. This water heater operates on natural gas, boasting high energy efficiency ratings due to its advanced burner technology. The environmentally friendly design reduces greenhouse gas emissions while delivering consistent performance.

Similarly, the EF100T150(E)*(N) model provides an even larger capacity of 100 gallons, addressing the hot water demands of larger families or commercial establishments. It employs Bradford-White's Hydrojet Total Performance System, which minimizes sediment buildup and optimizes hot water output. This model also features a patented Vitraglas lining that protects the tank from corrosion, extending its lifespan and enhancing reliability.

On the other hand, the EF60T199(E)*(N,X)(A)(2) and EF100T199(E)*(N) models offer advanced technology with their unique "N" designation, indicating that they are equipped to handle more extensive heating requirements efficiently. The EF60T199 model, with its 60-gallon capacity, and the EF100T199, with 100 gallons, incorporate enhanced insulation to reduce heat loss and improve energy efficiency. Both models are designed for easy installation and maintenance, making them user-friendly for both homeowners and technicians.

Additionally, these water heaters feature advanced electronic ignition and controls that allow for precise temperature regulation and easy monitoring. The intuitive user interface simplifies operation, while built-in safety features ensure reliable and secure hot water delivery.

Overall, Bradford-White's EF series of water heaters, including the EF60T150(E)*(N), EF100T150(E)*(N), EF60T199(E)*(N,X)(A)(2), and EF100T199(E)*(N), exemplify the company's commitment to quality and innovation. With their robust performance, energy efficiency, and advanced technologies, these models offer dependable hot water solutions tailored to meet the diverse needs of today's consumers. Whether for residential or commercial use, Bradford-White continues to set the standard for excellence in water heating technology.
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