Bradford-White Corp B4 warranty Ignition System no Sizes ON/OFF with EM2, 18BRADFORD White

Page 18

Internet Version for Reference Only

Page 18BRADFORD WHITE

IGNITION SYSTEM NO. 12 (SIZES 175-250)

ON/OFF WITH EM2

 

 

2 AMP

TRANSFORMER

 

 

 

 

 

 

 

FUSE

 

 

 

 

 

 

R

R

BK

 

BR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24V

115V

 

 

 

 

 

 

 

 

 

 

 

P

1 2 3

4 5 LOW WATER

 

 

 

 

 

 

 

 

 

 

CUT-OFF (OPTIONAL)

MANUAL

 

 

 

 

W

 

 

POWER

 

 

 

FUSIBLE

 

 

 

 

 

 

 

RESET

 

 

 

 

 

 

SWITCH

 

BK HOT

 

LINK

 

Y

 

 

 

BK

HI-LIMIT

 

 

 

 

 

 

W

 

W

 

 

 

BK

BL

 

 

 

 

 

 

 

 

115/60HZ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PUMP

W

 

 

POWER SUPPLY

 

 

 

 

 

 

 

W

 

 

 

 

 

RELAY

 

 

 

NEUTRAL

 

 

 

 

 

A

1

R

 

W

 

 

 

 

TERMINAL

T

3

 

 

PUMP

GROUNDING

TEMP

 

STRIP

B

 

BR

CONDUCTOR

CONTROL

 

1

 

 

 

BR

BK

 

 

 

R

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

3FIELD INTERLOCK

 

 

R

 

 

 

 

4

(REMOVE JUMPER

 

FLOW

 

IGNITION

 

 

 

 

 

 

 

 

 

WHEN USED)

 

 

CONTROL

 

 

 

 

 

 

 

 

5

 

SWITCH

BR

1 MV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BR

 

 

Y

 

 

 

 

 

 

 

 

 

6

 

 

2 MV/PV

 

 

 

 

 

 

 

 

 

 

 

O

 

 

 

 

 

 

 

 

BR

 

 

3 PV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

 

 

 

4 GND

 

 

 

 

 

 

 

 

 

BR

 

 

 

5 24V (GND)

 

 

 

 

 

 

 

8

 

 

 

6 24V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7 TH-W

 

 

 

VENT DAMPER

9

 

 

 

 

8 MV

 

 

 

 

10

 

 

 

 

9 SPARK

 

 

 

RECEPTACLE

 

 

 

 

 

 

 

 

W

 

6

5

4

Y

 

11

 

 

 

 

 

SPARK

PILOT BURNER

 

 

 

 

 

 

 

 

 

 

WITH SPARK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

 

 

 

 

 

 

 

W

 

 

 

R

 

 

 

 

 

 

 

ELECTRODE

 

 

3

2 1

 

 

 

 

 

 

 

 

SENSOR

VENT DAMPER

 

 

 

 

P

 

 

 

 

 

 

 

 

 

 

 

 

 

O

 

Y

 

 

 

 

 

 

 

JUMPER

 

 

 

 

 

 

 

 

 

 

Y

 

 

 

 

 

 

 

 

 

 

 

PV

O

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MV/PV

Y

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MV

 

 

 

 

 

 

 

 

 

 

VENT DAMPER

 

 

 

 

 

 

 

 

 

 

 

 

AND DRAFTHOOD

 

 

 

 

BK - BLACK

 

 

 

 

 

SWITCH, M. RESET

 

 

 

 

 

VENT DAMPER

GAS VALVE

 

W

- WHITE

 

 

 

 

 

R

- RED

 

VENT DAMPER

ACTUATOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Y

- YELLOW

 

 

 

 

 

 

 

 

 

 

 

PLUG

 

BK

 

 

 

 

 

TH-TR

 

O

 

BL

- BLUE

 

 

 

 

 

 

 

 

 

 

BR - BROWN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TR

 

Y

 

O

- ORANGE

6

5 4

G

 

 

 

 

BK

 

 

 

G

- GREEN

3

2

W

 

 

M

 

BK

BR

 

TH

 

P

- PURPLE

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FACTORY WIRING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R

 

 

 

 

 

 

 

 

 

 

24V

 

 

 

 

 

 

 

 

 

ALTERNATE

 

 

115V

 

 

 

 

 

 

 

 

 

 

 

 

 

ALTERNATE WIRING FOR INDOOR INSTALLATION ONLY

GAS VALVE

 

FIELD WIRING

 

 

 

 

 

 

 

 

 

 

 

 

 

24V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

115V

 

 

 

 

 

 

 

 

 

 

 

IF ANY OF THE ORIGINAL WIRE AS SUPPLIED

 

 

 

 

 

 

 

 

 

 

WITH THE HEATER MUST BE REPLACED, IT

 

 

 

 

 

 

 

 

 

 

MUST BE REPLACED WITH APPLIANCE WIRING

 

 

 

 

 

 

 

 

 

 

MATERIAL 105°C (220°F) OR ITS EQUIVALENT.

 

 

 

 

 

 

 

 

 

 

WHITE WIRES TO FUSIBLE LINK MUST BE

 

 

 

 

 

 

 

 

 

 

REPLACED WITH WIRE HAVING INSULATION

 

 

 

 

 

 

 

 

 

 

RATED AT 200°C (390°F). (AVAILABLE FROM

 

 

 

 

 

 

 

 

 

 

FACTORY).

 

 

 

 

Figure 27. Typical example of wiring schematic, System 12, Sizes 175-250.

Image 18
Contents Copper Brute Table of Contents Introduction WarrantyGeneral Information Technical AssistanceInstallation Instructions Field AssemblyInstallation Information Outdoor InstallationSite Location 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 PressureGas Supply and Piping Thermal Circulation of Hot WaterGeneral Instructions 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 Start-Up Procedure Setting the Temperature ControlsRemote Water Heater Temperature Control Hi-Limit Switch Checkout Shut-Down ProcedureInternal Water Heater Temperature Control Maintenance Replacement of Gas ControlsGeneral Instructions 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 Fuse Testing the Ignition Control for spark ignitionTesting the High Voltage Ignition Lead 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.