Bradford-White Corp C)*(N, PDX75S70F(B, CX), PDX65S65F(B, PDX275T6*F(BN, PDX250T6*F(BN PDX Series

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PDX Series

WARNING: If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, personal injury, or death.

FOR YOUR SAFETY

Do not store or use gasoline or other flammable, combustible, or corrosive vapors and liquids in the vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS

Do not try to light any appliance.

Do not touch any electrical switch; do not use any phone in your building.

Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions.

If you cannot reach your gas supplier, call the fire department.

Installation and service must be performed by a qualified installer, service agency or the gas supplier.

CAUTION

Incorrect operation of this

appliance may create a hazard to

life and property and will nullify the

warranty.

DANGER

Do not store or use gasoline or other flammable, combustible, or corrosive vapors and liquids in the vicinity of this or any other appliance.

IMPORTANT

Before proceeding, please inspect the water heater and its components for possible damage. DO NOT install any water heater with damaged components. If damage is evident then please contact the supplier where the water heater was purchased or the manufacturer listed on the rating plate for replacement parts.

WARNING

Water heaters are heat producing appliances. To avoid damage or injury, do not store materials against the water heater or vent-air intake system. Use proper care to avoid unnecessary contact (especially by children) with the water heater and vent-air intake components. UNDER NO

CIRCUMSTANCES MUST FLAMMABLE

MATERIALS, SUCH AS GASOLINE OR PAINT THINNER BE USED OR STORED IN THE VICINITY OF THIS WATER HEATER, VENT-AIR INTAKE SYSTEM OR IN ANY LOCATION FROM WHICH FUMES COULD REACH THE WATER HEATER OR VENT-AIR INTAKE SYSTEM.

CAUTION

If sweat fittings are to be used DO NOT apply heat to the nipples on top of the water heater. Sweat the tubing to the adapter before fitting the adapter to the water connections. It is imperative that heat is not applied to the nipples containing a plastic liner.

WARNING

Hydrogen gas can be produced in an operating

water heater that has not had water drawn from the

tank for a long period of time (generally two weeks or

more). Hydrogen gas is extremely flammable. To

prevent the possibility of injury under these

conditions, we recommend the hot water faucet to be

open for several minutes at the kitchen sink before

you use any electrical appliance which is connected

to the hot water system. If hydrogen is present,

there will be an unusual sound such as air escaping

through the pipes as hot water begins to flow. Do

not smoke or have open flame near the faucet at the

time it is open.

WARNING

DO NOT ATTEMPT TO LIGHT ANY GAS APPLIANCE IF YOU ARE NOT CERTAIN OF THE FOLLOWING:

Liquefied petroleum gases/propane gas and natural gas have an odorant added by the gas supplier that aids in the detection of the gas. Most people recognize this odor as a “sulfur” or “rotten egg” smell.

Other conditions, such as “odorant fade” can cause the odorant to diminish in intensity, or ”fade”, and not be as readily detectable.

If you have a diminished sense of smell, or are in any way unsure of the presence of gas, immediately contact your gas supplier from a neighbor's telephone.

Gas detectors are available. Contact your gas supplier, or plumbing professional, for more information.

WARNING

FAILURE TO INSTALL AND MAINTAIN A NEW,

LISTED 3/4” X 3/4” TEMPERATURE AND PRESSURE

RELIEF VALVE WILL RELEASE THE

MANUFACTURER FROM ANY CLAIM THAT MIGHT

RESULT FROM EXCESSIVE TEMPERATURE AND

PRESSURES.

CAUTION

Turn off or disconnect the electrical power supply to the water heater before servicing. Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing.

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Contents Denotes Warranty Years Service ManualTable of Contents PDX Series Introduction How to Use This Manual Tools Required for ServiceSpecifications PDX Series Control Timings Sequence of Operation Power up SequenceAbnormal Operation Pressure Switch/Blower Temperature Fault LED Status TroubleshootingProbable Cause Service Status Procedure Green LED IndicatorTroubleshooting LED Status Burner Inspection and Air Shutter Adjustment Cast Iron Burner Air Shutter AdjustmentAir Shutter Nut Burner Surface area Feedline nut Pilot tubing nut Port area Burner CleaningOrifice Pilot Inspection, Testing and ReplacementIgniter/flame Sense wire Feedline nut Pilot tubing nut FerruleExhaust Pressure Switch Testing Volt potential exposure. Use cautionMaking voltage checks to avoid personal injury To avoid personal injury Exhaust Pressure Switch ReplacementSlide pressure switch in direction From blower housingSee Inlet Pressure SwitchSwitch for blockage Is there blockage? To call for heat, this will start the blowerRemove screws Inlet Pressure Switch ReplacementVolt potential exposure. Use caution when Blower TestingBlower Cord Sets Blower Mounting Screws Blower InstallationBlower removal Remove exhaustBlower Temperature Switch Testing Blower Temperature Switch Replacement Gas Control Testing Thermal Well TestingIf Control has gone into TCO lockout due to Sensor Resistance at Various Temperatures Determine Water Temperature Inside TankGas Control Removal From Thermal Well Gas Control & Thermal Well Removal From Water HeaterGas Control Assembly to Thermal Well Flammable Vapor Device Testing Safety Circuit Voltage Trace Across black & white Y Wires as shown ControlVAC Circuit Trace Shown in photoDip Tube Inspection and Replacement Anode Inspection and Replacement Flue baffle Inner Door Removal Procedure Installation of Inner Door With Gasket Installation of inner door with gasket from Glossary of Terms Parts List Parts@bradfordwhite.com Techserv@bradfordwhite.com
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