Bradford-White Corp B4 warranty Gas Pressure Tests, Electrical Troubleshooting

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BRADFORD WHITE

 

 

 

 

8.Pressure test the heat exchanger for leaks with city water supply before re-installing (see Figure 35).

9.When placing the heat exchanger back in the heater, carefully hold the refractory insulation blocks apart and lower the heat exchanger into place. Be sure the sheet metal covers, which protect the insulation blocks, are replaced carefully.

10.If a header bolt is stripped, drive it out of the header plate and replace it.

11.To reinstall the heat exchanger, refer to Section 2.6.1.

SECTION 5. Troubleshooting and Service

5.1Gas Pressure Tests

Use the following procedures to check the

main gas and manifold regulated gas pressures. A manometer or a dry gas pressure gauge may also be used for either test.

5.1.1Checking the Main Line Gas Pressure

1.Attach a manometer (or a dry gas pressure gauge) to heater jacket (see Figure 36).

2.Open both columns on the manometer.

3.Use shutoff valve outside the heater jacket to shut off all gas supply to the heater.

Suggested

Manometer

Position

Main

Line

Manifold

Regulated

Test Plugs

Test Plug

Main Line

4.Remove the 1/8 inch Allen Plug on the inlet side of the gas valve and replace it with the 1/8 inch (3.2 mm) NPT fitting from the manometer kit.

5.Attach one end of the manometer hose to the fitting on the gas valve and the other end to the manometer.

6.Open gas supply valve to the heater to test.

7.With the main burners firing, the manometer reading should be between 6.5 and 9 inches W.C. for natural gas, and between 11 and 14 inches W.C. for propane units (see Table 6).

5.1.2Checking the Manifold Regulated Gas Pressure

1.Attach a manometer (or a dry gas pressure gauge) to heater jacket (see Figure 36).

2.Open both columns on the manometer.

3.Use shutoff valve, on outside of heater jacket, to shut off all gas supply to the heater.

4.Remove the 1/8 inch (3.2 mm) NPT test plug on the outlet side of the manifold, and replace it with the 1/8 inch (3.2 mm) NPT fitting from the manometer kit, (see Figure 36).

5.Attach one end of the manometer hose to the fitting on the manifold and the other end to the manometer.

6.Turn on gas supply to the heater, and set the temperature control high enough to call for heat.

7.Turn toggle switch to ON. This should activate the main burners.

8.The manometer reading should be 4 inches (102mm) W.C. for natural gas and 9 inches

(229mm) W.C. for propane gas.

9.Turn the toggle switch to OFF.

10.Shut the system down following the instructions found on the inside of the heater.

11.Disconnect the manometer tubing from the manifold and replace the 1/8 inch (3.2 mm) NPT fitting with the original plug.

5.2Electrical Troubleshooting

This section describes procedures for checking

the electrical power and control components of the heater. Read all of these procedures before starting repairs.

Problems with heaters not firing are usually caused by something reducing water flow through the heater, causing the protective switches in the heater system to shut down the heater.

Figure 36. Gas pressure test.

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Contents Copper Brute Table of Contents Introduction WarrantyGeneral Information Technical AssistanceInstallation Instructions Field AssemblySite Location Installation InformationOutdoor Installation Flooring Typical Installation Combustion and Ventilation Air SupplyIndoor Air Supply MethodOutdoor Air Supply Exhaust Fans or VentsGeneral Information Venting of Combustion ProductsWater Flow Reversible Water ConnectionsHeat exchanger reversal Front Water Hardness Water ChemistryFreeze Protection Pump RequirementsCold water application Hot water supply with vertical tank Pressure Relief Valve Storage Tank InstallationPressure Buildup in Water System Water PressureGeneral Instructions Gas Supply and PipingThermal Circulation of Hot Water Combined Space Heating/Potable Water Heating Systems Electrical WiringOperating Instructions Normal Operating SequenceIgnition System no Sizes ON/OFF with EM2 Ignition System no Sizes ON/OFF with EM2 18BRADFORD WhiteIgnition System no Sizes ON/OFF with Em2Pump W Relay LOW Water CUT-OFF Optional Power Switch Remote Water Heater Temperature Control Start-Up ProcedureSetting the Temperature Controls Internal Water Heater Temperature Control Hi-Limit Switch CheckoutShut-Down Procedure General Instructions MaintenanceReplacement of Gas Controls Gas valve/burner replacement Cleaning the Heat Exchanger Inspecting the Heat ExchangerChecking the Main Line Gas Pressure Electrical TroubleshootingGas Pressure Tests Checking the Manifold Regulated Gas PressureTesting the Transformer Heater Does Not Come OnTesting the Flow Switch Testing the Electrical Power SupplyTesting the Manual Reset Hi-Limit Switch Testing the Fusible Link Flame roll-out switchTesting the High Voltage Ignition Lead Testing the FuseTesting the Ignition Control for spark ignition Testing the Igniter Electrode Testing the Safety Shutoff for standing pilotTesting the Safety Shutoff For automatic pilot Testing the Pilot Thermocouple for standing pilotHeater Will Not Shut Off Testing for Burner Ignition For standing pilotTesting the Terminal Strip/ External Controls On-Off Main Burner CyclingBradford White

B4 specifications

Bradford-White Corp B4 is a remarkable water heater that embodies innovation, efficiency, and reliability. This product is designed to meet the stringent demands of both residential and commercial applications, making it a versatile choice for various users.

One of the standout features of the Bradford-White B4 is its high-efficiency operation. With advanced insulation technologies, this water heater minimizes heat loss, allowing it to perform efficiently while conserving energy. This efficiency translates to significant cost savings on utility bills, making the B4 an economical option over its lifespan.

Moreover, the B4 employs a robust and durable construction. Engineered with top-quality materials, it boasts a glass-lined tank that prevents corrosion and extends the longevity of the unit. This durable design ensures that users can rely on their water heater for many years, thus reducing the frequency of replacements and repairs.

The Bradford-White B4 is equipped with state-of-the-art technologies to enhance user convenience. Among these technologies is the ICON System, which features an advanced gas control. This control system allows for precise temperature management and ensures optimal performance. Additionally, the B4 comes with a built-in diagnostic system that provides insight into the operation of the unit, helping users identify potential issues before they escalate.

Another significant characteristic of the B4 is its variety of sizes and configurations. This versatility allows for easy installation in different spaces, whether it be a compact utility room or a larger commercial setup. Available in various capacities, the B4 can efficiently deliver hot water for various needs, catering to families of different sizes or businesses with diverse requirements.

Safety is also a top priority for Bradford-White. The B4 includes safety features such as a temperature and pressure relief valve, which acts as a safeguard against potential malfunctions. This adds an extra layer of peace of mind for users concerned about operational safety.

In summary, the Bradford-White Corp B4 combines high efficiency, durable construction, advanced technologies, versatility, and safety features. This makes it more than just a water heater—it is a dependable solution for ensuring hot water availability for various applications. Whether for a home or a commercial setting, the B4 represents a commitment to quality and performance that users have come to trust.
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