Bradford-White EF User Manual

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Page 1

WARNING: If the information in

ULTRA HIGH EFFICIENCY COMMERCIAL GAS WATER HEATER

(EF Series Models)

INTERNET VERSION FOR REFERENCE ONLY

Ambler, PA 19002 Tech. Service (800) 334-3393 Service Parts (800) 538-2020 Warranty Service (800) 531-2111

Part No. 238-44445-00B 03/04

- Do not store or use gasoline or other

- WHAT TO DO IF YOU SMELL GAS

- Installation and service must be

these instructions is not followed exactly, a fire or explosion may result causing property damage, personal injury or death

flammable vapors and liquids in the vicinity of this or any other appliance

• 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.

performed by a qualified installer, service agency or gas supplier

INSTALLATION/OPERATING MANUAL

PLACE THESE INSTRUCTIONS ADJACENT TO WATER HEATER AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE

WITH TROUBLESHOOTING GUIDE

Page 2

SECTION I: IMPORTANT INFORMATION

fired water heater is design certified by CSA International under the American National

M (as indicated on the rating

plate) available from CSA Standards Association, 178 Rexdale Blvd., Etobicoke, Ontario, Canada

This water heater must be installed in accordance with local codes. In the absence of local codes, it

Latest Edition), or in

Canada CAN/CGA B149.1 Natural Gas Installation Code (Latest Edition) or CAN/CGA B149.2

d throughout this manual to bring attention to the presence of hazards at

property damage.

This water heater has a limited warranty. The warranty for this water heater is valid only if the

water heater has been installed, maintained and operated in accordance with these instructions.

NOTICE

TABLE OF CONTENTS

This gasStandard, Z21.10.3 (as indicated on the rating plate) and CAN/CGA 4.3-

M9W 1R3.

must be installed in compliance with the National Fuel Gas Code (ANSI Z223.1-

Propane Installation Code (Latest Edition).

The following terms are use various risk levels, or to important information concerning product life.

DANGER

Indicates an imminently hazardous situation which, if not avoided, will result in death, serious injury or substantial

WARNING

Indicates a potentially haza rdous situation which, if not avoided, could result in death, serious injury or substantial property damage.

INTERNET VERSION FOR REFERENCE ONLY

I IMPORTANT INFORMATION................2

II SPECIFICATIONS....................................5 VIII ELECTRICAL CONNECTIONS...........33

III GENERAL INFORMATION....................6 IX OPERATING INSTRUCTIONS.............34

IV INSTALLATION INSTRUCTIONS.........9 X MAINTENANCE....................................37

V WATER CONNECTIONS.......................15 XI TROUBLE SHOOTING GUIDE............41

VI VENTING................................................18 XII PARTS LIST...........................................43

READ CAREFULLY

CAUTION

Indicates potentially hazardous situation which, if not avoided, may result in moderate or minor injury or property damage.

Indicates special instructions on installation, operation or maintenance which are important but not related to

ersonal injury hazards.

VII GAS CONNECTIONS............................31

NOTICE

Page 3

DANGER

DO NOT store or use gasoline or other flammable, combustible, or corrosive vapors and/or liquids in the vicinity of this or any other appliance. DO NOT install any damaged venting system 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. Use only vent terminals provided or factory authorized terminals for venting this water heater. This water heater is equipped with an adjustable thermostat to control water temperature. Hot water temperatures required for automatic dishwasher and laundry use can cause scald burns resulting in serious personal injury and/or death. The temperature at which injury occurs varies with the person’s age and the time of exposure. The slower response time of disabled persons increases the hazards to them. NEVER allow small children to use a hot water tap, or to draw their own bath water. NEVER leave a child or disabled person unattended in a bathtub or shower. Failure to properly install the vent and air intake (if applicable) system could result in property damage, personal injury, or death

WARNING

Improper installation, adjustments, alteration, service or maintenance can cause property damage, personal injury or loss of life. Failure to follow all instructions in the proper order can cause personal injury or death. Read and understand all instructions, including all those provided with the appliance before installing, starting-up, operating, maintaining or servicing this appliance. Keep this manual and literature in legible condition with this water heater for reference by owner and service technician. This water heater requires regular maintenance and service to operate safely. Follow the instructions contained in this manual. Installation, maintenance, and service must be performed only by an qualified, skilled and knowledgeable installer or service provider. Installation is not complete unless a temperature and pressure relief valve is installed into the proper location at the top of this water heater. It is the responsibility of the installing contractor to see that all controls are correctly installed and are properly operating when the installation is complete. This water heater is suitable for installation on combustible flooring. Do not install water heater on carpeting. DO NOT operate this water heater without first being certain it is filled with water. DO NOT tamper with or alter the water heater and/or controls. DO NOT operate water heater with jumpered or absent controls or safety devices. DO NOT operate water heater if any external part has been under water. Immediately call a qualified service agency to inspect the appliance and to replace any part of the control system including gas controls, which has been under water. DO NOT attempt to use this water heater wit h any gas other than the type listed on the rating plate. Do not attempt to convert this water heater for use with a gas other than the type for which it is equipped. Failure to use the proper gas can create an unsafe condition resulting in property dama ge, bodily injury, or death. Consult your local gas supplier or gas company if there are any questions. DO NOT operate this water heater if the input rate exceeds the rate shown on the water heater rating plate. This water heater contains very hot water under high pressure. Do not unscrew any pipe fittings nor attempt to disconnect any components of this water heater without positively assuring the water is cool and is not under pressure. Always wear protective clothing and equipment when installing, starting up or servicing this water heater to prevent scald injuries. Do not rely on the temperature gauges to determine the temperature. Do not touch any components unless they are cool. This water heater must be properly vented and connected to an approved vent system in good condition. DO NOT operate water heater with the absence of an approved vent system. A clean and unobstructed vent system is necessary to allow noxious fumes that could cause injury or loss of life to vent safely and will contribute toward maintaining the water heater’s efficiency.

INTERNET VERSION FOR REFERENCE ONLY

Page 4

WARNING

Liquefied petroleum gases/propane gas is heavier than air and will remain at floor level if there is a leak.

tion of leaking

diately call your gas supplier from a telephone in another building. Follow the gas supplier’s

DO NOT OPERATE THE APPLIANCE UNTIL THE LEAKAGE IS CORRECTED!

This water heater needs fresh air for safe operation and must be installed so there are provisions for adequate combustion and ventilation air. Insufficient air supply will cause a recirculation of combustion products resulting in contamination that may be hazardous to life. This will result in carboning or sooting of the combustion chamber, burners, and flue tubes and creates a risk of asphyxiation. This water heater requires its own separate venting system. DO NOT connect the exhaust vent into an existing vent pipe or chimney. Water heater materials of construction, products of combustion and the fuel contain carbon monoxide, nitrogen oxides, aldehydes and/or other toxic or harmful substances which can cause death or serious injury and which are known to the state of California to cause cancer, birth defects and other reproductive harm. Always use proper safety clothing, respirators and equipment when servicing or working nearby this water heater. Flammable items, pressurized containers or any other potential fire hazardous articles must never be placed on or adjacent to the water heater. Open containers of flammable material should not be stored or used in the same room with this water heater. Insulation blankets are not required for this water heater. This water heater meets or exceeds the ASHRAE/IES

90.1b (latest edition) standards with respect to insulation and standby loss requirements. 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 connect to the hot water system. If hydrogen is present, there will be an unusual sounds 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

Basements, crawl spaces, closets and areas below ground level will serve as pockets for accumula gas. Before lighting, smell all around the appliance area for gas. Be sure to smell next to the floor.

IF YOU SMELL GAS:

• DO NOT try to light any appliance.

• DO NOT touch any electric switch; do not use any telephone in your building.

• Imme

instructions.

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

INTERNET VERSION FOR REFERENCE ONLY

Page 5

SECTION II: SPECIFICATIONS

Model No.

Outlet

G Fl. to Air

Heating

(LBS)

EF60T125

42 ¼

53 ½

EF60T150

53 ½

EF60T199

EF100T150

EF100T199

EF100T250

EF100T300

53 ½

Input

Del. LPH

Liter

G Fl. to Air

Heating

Shpg.

393.4

457.3

603.2

487.3

645.8

794.9

904.8

1448

1972

Figure 1. Dimensional Layout

Input

Rate

BTU/h

125,000 187 363.6 145.5 103.9 60 96.0 57 28 3/8 5 13 40 150,000 211 422.7 169.1 120.8 60 93.0 57 28 3/8 5 13 40 42 ¼ 52 ½ 199,999 150,000 199,999 250,000 300,000

Nat

Model No.

EF60T125 EF60T150 EF60T199 EF100T150 EF100T199 EF100T250 EF100T300

36.6

43.9

58.6

43.9

58.6

73.2

87.9

Recovery GPH

At Degree Rise

1st Hr.

Del. Gal.

100°F

40°F 100°F 140°F

Rise

265

557.6 250 309 364 405

INTERNET VERSION FOR REFERENCE ONLY

1st Hr.

at 56°C

Rise 22°C 56°C 78°C

709.7

799.2

1003.5

947.2

1169.1

1378.0

1531.7

223

450.5

180.2

597

238.8

734.8

293.9

836.4

334.5

Recovery LPH

At Degree Rise

1376.8

1600.5

2111.1

1705.5

2260.3

2782.3

3166.7

550.7

640.2

844.4

682.2

904.1

1112.9

1266.7

158 129 171 210 239

Stg.

Therm.

Cap.

U.S.

Eff.

Gal.

% A Ht. B Dia.

92.0

100

99.1

100

98.5

100

97.0

100

92.0

Stg.

Therm.

Cap.

227 227 227 379 379 379 379

Eff.

96.0

93.0

92.0

99.1

98.5

97.0

92.0

57 77 5/8 77 5/8 77 5/8 77 5/8

Ht.

28 3/8 28 3/8 28 3/8 28 3/8 28 3/8

Dia. 718

718 718 718 718 718 718

Flr to

Vent

Outlet

Flr to

Vent

Outlet

127 127 127 127 127 127 127

5 5 5 5 5

Flr to

Inlet Wtr.

Conn

Flr to

Inlet Wtr.

Conn

330 330 330 594 594 594 594

DIMENSIONS ( INCHES )

40 60 60 60 60

Fl. to

Wtr.

Conn

42 ¼ 62 ½ 62 ½ 62 ½ 62 ½

Intake

52 ½

52 ½ 73 1/8 73 1/8 73 1/8 73 1/8

Fl. to

Gas

Conn.

74 ¾ 74 ¾ 74 ¾ 74 ¾

Flr to

T&P Valve Conn

13 13 13 13 13

DIMENSIONS ( MILLIMETERS)

Flr to

T&P

Valve

Conn 1016

1016 1016 1524 1524 1524 1524

Fl. to

Outlet

Wtr.

Conn

1016 1016 1016 1880 1880 1880 1880

Intake

1359 1359 1359 1857 1857 1857 1857

Fl. to

Gas

Conn.

1359 1359 1359 1899 1899 1899 1899

Front

Space

Conn.

Dia.

1 1 1 1 1

Conn.

Gas

Dia.

19 19 19 19 19 19 19

Gas

Conn.

Dia.

¾ ¾ ¾ ¾ ¾

Relief

Valve

Open.

Wtr.

Conn.

Dia.

1 ½ 1 ¾ ¾ 570 1 ½ 1 ¾ ¾ 570 1 ½ 1 ½ 1 ½ 1 ½ 1 ½

Front

Space

Wtr.

Conn.

Dia.

25.4

Relief Valve

Open.

19 19 19 19 19 25 25

¾ ¾ ¾

1 1

Shpg.

Wt.

570 900 900 900 900

Wt.

(KG)

259 259 259 408 408 408 408

Table 1. Specifications

Page 6

SECTION III: GENERAL INFORMATION

FEATURES

This water heater contains the following features:

MAIN POWER ON/OFF SWITCH – The front panel of this water heater has a lighted ON/OFF switch, which is illuminated when the main power is turned on to indicate power to the water heater.

COMBUSTION SYSTEM –This water heater is equipped with a self-compensating negative pressure pre-mix combustion system. As the blower operates, air is drawn in through the air intake and into a venturi, which pulls gas from the gas valve. The gas and air is then mixed in the combustion blower and sent through the transition tube into the burner. The Hot Surface Ignition System (HSI) then ignites the gas/air fuel mixture to produce flue products (combustion). The flame sensor signals the ignition module (described below), that a flame is present.

IGNITION MODULE – The ignition module provides the timing for the combustion system. A sequence of operation (S-OP) is described in “Section IX - Operating Instruction.” As the combustion system progresses through the S-OP, LED’s illuminate, allowing accurate trouble -shooting should the need arise. If a failure occurs, the system will “blink” the LED that corresponds to the failure as described in the “Section XI Troubleshooting Guide.”

ADJUSTABLE THERMOSTAT – This water heater is equipped with an adjustable thermostat to control water temperature. Hot water temperatures required for automatic dishwasher and laundry use can cause scald burns resulting in serious personal injury and/or death.

The temperature may be adjusted from about 80°F to about 180°F. The thermostat was adjusted to 120°F before the water heater was shipped from the factory. It is recommended that lower temperatures be used to avoid the risk of scalding. Refer to the “Warnings” and the section on SCALDING in “Section V - Water Connections.” It is further recommended, in all cases, that the water temperature be set for the lowest temperature, which satisfies your hot water needs. This will also provide the most energy efficient operation of the water heater and minimizes scale formation.

Setting the water heater temperature at 120°F will reduce the risk of scalds. Some states require setting the specific lower temperatures.

The top immersion well of the single bulb controlle r also contains the high limit (energy cutoff) sensor. The high limit switch interrupts the main burner gas flow should the water temperature reach approximately 200°F.

Should the high limit switch activate, it must be manually reset. This can be accomp lished by turning the main power on/off switch to the off position and then back to the on position and allowing the water temperature of the tank to drop below 160°F.

Contact your qualified installing contractor, service provider or manufacturer listed on the rating plate if continued high limit switch operation occurs.

SERVICE PANEL – The service panel is located behind the service panel access cover, which is located by the exhaust collector near the bottom of the water heater. This panel contains a differential pressure switch that monitors the pressure across the exhaust orifice. A collector high limit switch is used to monitor the ambient temperature between the first pass collector and the exhaust collector. This is a manually re -settable switch. If this switch continues to trip, please contact an authorized service agency.

INTERNET VERSION FOR REFERENCE ONLY

Page 7

LATCHES – The latches allow easy access for servicing the water heater from the top. Simply remove the two latches for servicing and re -latch upon completion. No tools are required to obtain access to the top of the water heater.

TEMPERATURE AND PRESSURE RELIEF VALVE –

WARNING

Keep clear of the combination temperature and pressure relief valve discharge line outlet. The discharg e may be hot enough to cause scald injury. The water is under pressure and may splash.

For protection against excessive temperatures and pressure, install temperature and pressure protective equipment required by local codes, but not less than a combination temperature and pressure relief valve certified by a nationally recognized testing laboratory that maintains periodic inspection of production of listed equipment or materials as meeting the requirements of the Standard for Relief Valves and Automatic Gas Shutoff Devices for Hot Water Supply Systems, ANSI Z21.22 and the Standard CAN1-4.4 Temperature, Pressure, Temperature and Pressure Relief Valves and Vacuum Relief Valves. The combination temperature and pressure relief valve must be marked with a maximum set pressure not to exceed the maximum working pressure of the water heater. The combination temperature and pressure relief valve rating must not be less than the hourly rating of the water heater

Install the combination temperature and pressure relief valve into the opening provided and marked for this purpose on the water heater.

Note: Some models may already be equipped or supplied with an installed combination temperature and pressure relief valve. Verify that the combination temperature and pressure relief valve complies with local codes. If the combination temperature and pressure relief valve does not comply with local codes, replace it with one that does. Follow the installation instructions above on this page

Install a discharge line so that water discharged from the combination temperature and pressure relief valve will exit within six (6) inches (15.2 cm) above, or any distance below the structural floor and cannot contact any live electrical part. The discharge line is to be installed to allow for complete drainage of both the combination temperature and pressure relief valve and the discharge line. The discharge opening must not be subjected to blockage or freezing. DO NOT thread, plug or cap the discharge line. It is recommended that a minimum clearance of four (4) inches (10.0 cm) be provided on the side of the water heater for servicing and maintenance of the combination temperature and pressure relief valve.

Do not place a valve between the combination temperature and pressure relief valve and the tank!

CONDENSATE DRAIN – This water heater is a condensing type unit and requires a drain to be located in close

proximity to allow the condensate to drain safely. The condensate drains from the unit at the exhaust elbow located near the bottom of the unit. It is important that the condensate hose not be elevated above the exhaust elbow. The condensate build -up will block the exhaust outlet, which will cause improper operation. Refer to Figure 2 for an example of a service loop.

INTERNET VERSION FOR REFERENCE ONLY

Page 8

Figure 2. Condensate Elbow With Loop

CLEANOUT – All models are equipped with a cleanout opening to aid in removal of hard water deposits from the

tank bottom. If this water heater operates under hard water conditions, the following should be performed at least every 3 months: Turn off water supply and drain the water heater. Remove the cleanout jacket cover and tank cover. When cleaning the tank, care must be taken to avoid trying to break deposits loose as this could damage the glass lining and shorten the life of the water heater. After cleaning, re -install the cleanout tank cover and jacket cover, and refill with water. Refer to the section, “Section X – Maintenance” in this Installation and Operating Instruction manual for the procedures for filling and draining the water heater.

SACRIFICIAL ANODES – Four sacrificial anode rods have been installed in the tank head to extend tank life. The anode rods should be inspected periodically for corrosion and replaced when necessary to prolong tank life. Water conditions in your area will influence the time interval for inspection and replacement of the anode rods. The use of a water softener may increase the speed of anode consumption. More frequent inspection of the anodes is needed when using softened (or phosphate treated) water. Contact the installing contractor, or service provider that installed the water heater or the manufacturer listed on the rating plate for anode replacement information.

DISHWASHING MACHINE REQUIREMENTS

All dishwashing machines meeting the National Sanitation Foundation requirements are designed to operate with water flow pressures between 15 and 25 pounds per square inch. Flow pressures above 25 pounds per square inch, or below 15 pounds per square inch, will result in improperly sanitized dishes.

The National Sanitation Foundation also recommends circulation of 180°F water. Where this is done, the circulation should be very gentle so that it does not cause any unnecessary turbulence inside the water heater. The circulation should be just enough to provide 180°F water at the point of take-off to the dishwashing machine. Adjust flow by means of the valve in the circulation line.

INTERNET VERSION FOR REFERENCE ONLY

Page 9

INSTALLATION OF THIS WATER HEATER REQUIRES ABILITY EQUIVALENT

OLVED.

DO NOT ATTEMPT TO LIGHT ANY GAS APPLIANCE IF YOU ARE NOT

Liquefied petroleum gases/propane gas and natural gas have an odorant added by the

Other conditions, such as “odorant fade” can cause the odorant to diminish in

ve a diminished sense of smell, or are in any way unsure of the presence of

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

Liquefied petroleum gases/propane gas is heavier than air and will remain at floor level if there

is a leak. Basements, crawl spaces, closets and areas below ground level will serve as pockets

ll around the appliance area for gas.

in another building. Follow the

WARNING

d in an area where leakage of the tank, water line

connections, or the combination temperature and pressure relief valve will not result in

damage to the area adjacent to the water heater or to lower floors of the structure. When

avoided, a suitable drain pan must be installed under the water

heater. The drain pan depth must be suitable for draining and collecting water, and have

a minimum length and width of at least four (4) inches (10.0 cm) measured from the

jacket of the wate

r heater. The drain pan, as described above, can be purchased from

your plumbing professional. The drain pan must be piped to an adequate drain. The

piping must be at least ¾ inch (2.0 cm) in diameter and pitched for proper drainage.

SECTION IV: INSTALLATION INSTRUCTIONS

TO THAT OF A LICENSED TRADESMAN IN THE FIELD INV PLUMBING, AIR SUPPLY, VENTING, GAS SUPPLY AND ELECTRICAL WOR ARE REQUIRED.

CERTAIN OF THE FOLLOWING:

•

gas supplier that aids in detection of the gas.

• Most people recognize this odor as a “sulfur” or “rotten egg” smell.

•

intensity, or “fade”, and not be as readily detectable.

• If you ha

gas, immediately contact your gas supplier from a telephone in another building.

•

more informati on.

for accumulation of leaking gas. Before lighting, smell a Be sure to smell next to the floor. IF YOU SMELL GAS:

• Do not try to light any appliance.

• Do not touch any electric switch; do not use any telephone in your building.

• Immediately call your gas supplier from a telephone

gas supplier’s instructions.

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

DO NOT OPERATE THE APPLIANCE UNTIL THE LEAKAGE IS CORRECTED!

This water heater must be locate

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such locations cannot be

WARNING

Page 10

UNPACKING

INSPECT SHIPMENT carefully for any signs of damage.

1. All equipment is careful ly manufactured, inspected and packed.

2. Any claims for damage or shortage in shipment must be filed immediately with Bradford White Corporation and noted on the Bill of Lading.

3. Remove all venting components from the combustion assembly compartment by rem oving the latches.

NOTICE

The vent terminals and the condensate elbow that is supplied with this water heater are stored at the top in the Combustion Assembly Compartment. To access the vent terminals and condensate elbow, unlatch the top lid and remove parts. Be sure to replace the top and relatch.

LOCATE WATER HEATER in front of final position before removing crate.

1. LOCATE so that venting connections will be short and direct.

2. THIS WATER HEATER IS SUITABLE FOR INSTALLATION ON COMBUSTIBLE FLOOR. Do not install this water heater on carpeting.

3. FOR BASEMENT INSTALLATION, provide a solid level elevated base such as concrete.

4. Minimum clearance to combustible material is 0” for the Top, Sides, and Rear of this water heater. However, it is recommended that at least 18” from the Top, 24” from the Front, and 4” for the Sides, and Rear of the water heater be provided for servicing. Clearance for servicing may be reduced down to minimum clearance to combustible material, but service time and effort may be greatly increased.

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Figure 3. Minimum Clearance To Combustible

Page 11

REMOVE CRATE

1. Remove all banding and pry off crate sides carefully so as not to damage the water heater.

2. Carefully roll/lift the water heater from the crate base.

CAUTION

Do not drop water heater. Do not bump water heater jacket against floor. Do not bump exhaust vent pipe against crate or other objects. This will damage the heater and cause it to be inoperable or create nuisance problems.

MOVE WATER HEATER TO PERMANENT POSITION by sliding or walking. Place drain pan underneath water heater

INSTALL TEMPERATURE AND PRESSURE RELIEF VALVE (if not already installed).

WARNING

Temperature and pressure relief valve discharge piping must be piped near floor to eliminate potential of severe burns . Do not pipe in any area where freezing could occur. Do not install any shut-off valves, plugs or caps to the temperature and pressure relief valve or pi ping.

CAUTION

If building cold water supply has a back-flow preventer, check valve or water meter with check valve, provisions for thermal expansion of water in the hot water system must be provided.

DANGER

Temperature setting should not exceed safe temperature at fixtures. See water temperature control warning on page 16. If higher preheat temperatures are necessary to obtain adequate booster output, add an anti -scald valve for hot water supplied to fixtures.

LOCATION

KEEP APPLIANCE AREA CLEAR AND FREE OF COMBUSTIBLE MATERIALS, GASOLINE AND OTHER FLAMMABLE VAPORS AND LIQUIDS.

This water heater must be located in an area where the general public does not have access to set temperatures.

AIR REQUIREMENTS

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1. Do not obstruct the flow of combustion and ventilating air.

2. For safe operation, adequate air is needed for combustion and ventilation. Sooting may result in serious damage to the water heater and risk of fire or explosion. It can also create a risk of as phyxiation. Such a condition often will result in a yellow, luminous burner flame, causing carboning or sooting of the combustion chamber, burner and flue tubes.

Page 12

MECHANICAL EXHAUSTING OF ROOM AIR

1. Where an exhaust fan is installed in the same room with this water heater and combustion air is drawn from inside the room, sufficient openings for air must be provided in the walls. UNDERSIZED OPENINGS WILL CAUSE AIR TO BE DRAWN INTO THE ROOM THROUGH THE WATER HEATER’S VENTING SYSTEM, CAUSING POOR COMBUSTION THAT MAY BE HAZARDOUS TO LIFE. SOOTING MAY RESULT IN SERIOUS DAMAGE TO THE WATER HEATER AND RISK OF FIRE OR EXPLOSION WHICH CAN ALSO CREATE A RISK OF ASPHYXIATION. Refer to local codes and /or National Fuel Gas Code for proper air opening sizing.

UNCONFINED SPACE

1. In buildings of conventional frame, brick or stone construction, unconfined spaces may provide adequate

air for combustion and ventilation.

2. If the unconfined space is within a building of tight construction (buildings using the following

construction: weather stripping, heavy insulation, caulking, vapor barrier, etc.), air for combustion and ventilation must be obtained from outdoors. This may be accomplished by piping air directly to the water heater from outside or providing opening or ducts in the wall. The installation instructions for confined spaces in tightly constructed buildings must be followed to ensure adequate air supply.

CONFINED SPACE

1. When drawing combustion air from inside a conventionally constructed building to a confined space, such a space shall be provided with two permanent openings.

• The top opening is to be located within twelve (12) inches of the enclosure top and the bottom

opening within twelve (12) inches of the enclosure bottom.

• Each opening shall have a free area of at least one square inch per 1000 Btu/h of the total input of

all appliances in the enclosure, but not less than 100 square inches.

2. If the confined space is within a building of tight construction, air for combustion and ventilation must be obtained from outdoors. This may be accomplished by piping air directly to the water heater from outside or providing opening or ducts in the wall. When directly communicating with the outdoors through vertical ducts, two permanent openings, located in the above manner, shall be provided.

• Each opening shall have a free area of not less than one square inch per 4000 Btu/h of the total

input of all appliances in the enclosure.

• If horizontal ducts are used, each opening shall have a free area of not less than one square inch

per 2000 Btu/h of the total input of all appliances in the enclosure.

3. If the water heater is installed as a direct vent (outside air piped directly to the water heater), then additional opening, other than the opening for the air intake, are not required. However, adequate ventilation air must be provided in all cases to prevent increased room temperature.

CHEMICAL VAPOR CORROSION

Corrosion of the flue ways and vent system will occur if air for combustion contains certain chemical vapors.

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Such corrosion may result in poor combustion and create a risk of asphyxiation. Spray can propellants, cleaning solvents, refrigerator and air conditioning refrigerants, swimming pool chemicals, calcium and sodium chloride, waxes and process chemicals are corrosive. Products of this sort should not be stored near the water heater or outside by the air intake (if applicable).

Page 13

TYPICAL INSTALLATION ILLUSTRATION

CAUTION

If building cold water supply has a back-flow preventer, check valve or water meter with check valve provisions for thermal expansion of water in the hot water system must be provided.

Figure 4. Typical Front Inlet Connection

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Figure 5. Typical Front Inlet Connect with Storage Heater

Page 14

Figure 6. Typical Two Water Heater Connection

Figure 7. Typical Three Water Heater Connection

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Figure 8. Typical Four Water Heater Connection

Page 15

SECTION V: WATER CONNECTIONS

WARNING

Failure to install and maintain a new, listed temperature and pres sure relief valve will release the manufacturer from any claim, which might result from excessive temperature and pressures.

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.

Keep clear of the combination temperature and pressure relief valve discharge line outlet. The discharge may be hot enough to cause scald injury. The water is under pressure and may splash.

CAUTION

If sweat fittings are to be used, DO NOT apply heat to the nipples in front or side 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.

INSTRUCTIONS FOR CONNECTIONS

1. BEFORE PROCEEDING WITH THE INSTALLATION, CLOSE THE MAIN WATER SUPPLY

VALVE. After shutting off the main water supply, open a faucet to relieve the water line pressure to prevent any water from leaking out of the pipes while making the water connections to the water heater. The COLD water inlet and HOT water outlet are identified on the water heater. Make the proper plumbing connections between the water heater and the plumbing system to the house. Install a shut-off valve in the cold water supply line.

2. If this water heater is installed in a closed water supply system, such as the one having a back-flow

preventer in the cold water supply, provisions must be made to control thermal expansion. DO NOT operate this water heater in a closed system without provisions for controlling thermal expansion. Warranties do not cover damages from thermal expansion such as pressure bulges and/or deformities. Your water supplier or local plumbing inspector should be contacted on how to control this situation.

3. After installation of the water lines, open the main water supply valve and fill the water heater. While the

water heater is filling, open several hot water faucets to allow air to escape from the water system. When a steady stream of water flows through the faucets, close them and check all water connections for possible

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leaks.

4. Never operate the water heater without first being certain it is filled with water.

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SCALDING

This water heater can deliver scalding temperature water at any faucet in the system. Be careful whenever using hot water to avoid scalding injury. Certain appliances such as dishwashers and automatic clothes washers may require increased temperature water. By setting the thermostat on this water heater to obtain the increased temperature water required by these appliances, you may create the potential for scald injury. To protect against injury, you should install an ASSE approved mixing valve in the water system. This valve will reduce point of discharge temperature by mixing cold and hot water in branch supply lines. Such valves are available from the local plumbing supplier.

Figure 9. Scald Warning

The following chart details the relationship of water temperature and time with regard to scald injury and may be used as a guide in determining the safest water temperature for your applications.

Approximate Time/Temperature Scald Chart

APPROXIMATE TIME/TEMPERATURE

RELATIONSHIPS IN SCALDS

120°F More than 5 minutes 125°F 1½ to 2 minutes 130°F About 30 seconds 135°F About 10 seconds 140°F Less than 5 seconds

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145°F Less than 3 seconds 150°F About 1½ seconds 155°F About 1 second

Table 2.

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ALTERNATE SPACE HEATING WATER CONNECTIONS

DANGER

Toxic chemical, such as those used for boiler treatment, shall not be introduced into potable water used for space heating.

This water heater shall not be connected to an existing heating system or component(s) previously used with a nonpotable water heating appliance.

All piping components connected to this water heater for space heating applications must be suitable for use with potable water.

WARNING

When the system requires water for space heating at tempera tures higher than required for other means, a tempering valve shall be installed to temper the water for those uses in order to reduce the scald hazard potential.

Failure to properly pipe this water heater may result in improper operation and damage to the water heater or structure.

Oxygen contamination of this water heater will cause corrosion of iron and steel components, and can lead to water heater failure.

Connect the system supply and return piping to the water heater.

Refer to Figure 10 and Figure 11 for installation examples. Maintain a minimum ½” clearance from hot water piping to combustible materials.

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Figure 10. Alternate Space Heating Connections

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Figure 11. Typical Plumbing Schematic for Zoned Heating

SECTION VI: VENTING

WARNING

The vent system must be properly installed. Failure to properly install the vent system could result in property damage, personal injury, or death.

DO NOT install damaged venting system 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. Use only the vent terminals provided or factory authorized terminals for venting this water heater. The water heater requires its own separate venting system. Do not connect the exhaust vent into an existing vent pipe or chimney. All of the exhaust venting connections must be leak checked with a soap solution upon initial start up of the water heater. Any leaks must be repaired before continuing operation of the water heater.

Do not terminate the venting where noise from the exhaust or intake will be objectionable. This includes locations close to or across from windows and doors. Avoid anchoring the vent and intake pipes directly to framed walls, floors, or ceilings unless rubber isolation pipe hangers are used. This prevents any vibrations from being transmitted into the living spaces.

Do not exceed the venting distances or the number of elbows listed in this manual. Exceeding the maximum venting distances may cause the water heater to malfunction or cause an unsafe condition.

DO NOT operate this water heater until the venting installation is complete and the piping completed. Failure to complete installation before operation can result in property damage, personal injury, or death.

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CAUTION

The vent shall terminate a minimum of 12 inches above expected snowfall level to prevent blockage of vent termination.

The horizontal centerline of the exhaust vent terminal (if applicable) must not be located lower than the horizontal centerline of the air intake terminal if vented through the same wal l.

A service drain loop must be installed in the drain tubing to serve as a condensate trap to prevent flue gases from escaping in the room.

DO NOT position the air intake above the exhaust terminal. NEVER locate the air intake where exhaust gases can be introduced.

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NOTICE

Before beginning installation of any vent pipe, read the vent pipe manufacturer’s installation instructions. Water heater must be protected from freezing downdrafts during shutdown periods Provide protection of the building materials from degradation by flue gases from the exhaust vent terminal.

VENTING

The venting instructions must be followed to avoid restricted combustion or recirculation of flue gases. Such conditions cause sooting or risks of fire and asphyxiation.

This water heater can be installed as either a direct vent system or power vent (air from inside) system. If it is installed as a direct vent system, then the air intake and the exhaust vent are piped to the outside. If a power vented system is used, then air is drawn from inside and only the exhaust is piped to the outside. Determine which system is best for your application and install as described in the following sections.

DIRECT VENT INSTALLATION Venting may be run horizontally through an outside wa ll or vertically through a roof through using either 3 inch (7.6 cm) or 4 inch (10.2 cm) diameter PVC, ABS or CPVC pipe. This water heater is supplied with a screened intake and exhaust 90° elbow referred to as the exhaust vent terminal and the air intake terminal.

Direct Vent Terminal Location Plan the vent system layout so that proper clearances are maintained from plumbing and wiring. Before the vent is installed, determine the vent pipe termination location as shown below in Figure 12.

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Figure 12. Vent Terminal Location

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Vent terminals must terminate at least 3 feet (0.9 m) above any forced air inlet located within 10 feet (3.1 m). This provision does not apply to:

1. The combustion air intake of a direct vent appliance or the circulating air inlet and flue gas discharge of listed outdoor appliances.

2. The exhaust vent terminal must be installed with at least 12 inches (30 cm) clearance from any air opening into a building.

3. The bottom of the exhaust vent and combustion air intake terminals must be located at least 12 inches (30 cm) above grade and above the anticipated snow level.

4. Must be installed at least 3 feet (0.9 m) from any gas meter, gas valve or other gas regulating equipment.

5. Must be installed in a location where it will not be blocked by snow.

6. The exhaust vent and combustion air intake terminals must be installed so that the centerline distances are at least 18 inches (45.7cm) apart and the exhaust vent terminal elbow extends 6 inches (15.2 cm) past the combustion air intake terminal.

EXCEPTIONS FOR INSTALLATIONS

The vent terminal must not terminate:

1. Directly above a paved sidewalk or paved driveway which is located between two single-family dwellings and serves both dwellings;

2. Less than 7 feet (2.1 m) above a paved sidewalk or a paved driveway located on public property;

3. Within 6 feet (1.8 m) of a mechanical air supply inlet to any building;

4. Above a gas meter/regulator assembly within 3 feet (0.9 m) horizontally of the vertical centerline of the regulator;

5. Within 6 feet (1.8m) of any gas service regulator vent outlet;

6. Less than 1 foot (30.5 cm) above grade level;

7. Within 12 inches (30.5 cm) of a window or door, which can be opened in any building, any nonmechanical air, supply inlet to any building or the combustion air inlet of any other appliance;

8. Underneath a veranda, porch or deck, unless:

• The veranda, porch or deck is fully open on a minimum of two sides beneath the floor and

• The distance between the top of the vent termination and the underside of the veranda, porch

or deck is greater than 1 foot (30.5 cm).

The vent system must terminate so that proper clearances are maintained as cited in local codes or the latest edition of the National Fuel Gas Code, ANSI Z223.1.73.4e and 7.8a, b as follows:

1. Do not terminate the exhaust vent terminal over public area where condensate or vapor can cause nuisance or hazard.

2. For direct vent, the venting system shall terminate at least 1 foot below, 1 foot horizontally from or 1 foot above any door , window, or gravity air inlet into building.

3. For horizontal, the venting system shall terminate 4 foot below, 4 foot horizontally from or 1 foot above any door, window, or gravity air inlet into building.

4. The manufacturer also recommends the vent system terminations not be installed closer than 3 feet from an inside corner of an L shaped structure.

5. The vent termination shall not be mounted directly above or within 3 feet horizontally from an oil tank vent or gas meter to avoid potential freeze-up from condensation.

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6. The vent shall terminate a minimum of 12 inches above expected snowfall level to prevent blockage of vent termination.

Vent pipes serving power vented appliances are classified by building codes as “vent connectors”. Required clearances from combustible materials must be provided in accordance with information in this manual under LOCATION OF WATER HEATER and CLEARANCES, and with National Fuel Gas Code and local codes.

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NOTICE

This unit can be vented using only PVC (Class 160, ASTM D-2241 Schedule 40, ASTM D-1785; or Cellular Core Schedule 40 DWV, ASTM F-891), Schedule 40 CPVC (ASTM F-411), or ABS (ASTM D-2661) pipe. The fittings, other than the TERMINATIONS should be equivalent to PVC DWV fittings meeting ASTM F-2665. (Use CPVC fittings, ASTM F-438 for CPVC pipe and ABS fittings, ASTM D-266/3311 for ABS pipe.) If CPVC or ABS pipe and fittings are used, then the proper cement must be used for all joints, including joining the pipe to the Termination (PVC material). PVC materials should use ASTM –D2564 grade cement; CPVC materials should use ASTM F-493 grade cement; and ABS materials should use ASTM D-2235 grade cement. For water heaters in locations with high ambient temperatures (above 100°F) and/or insufficient dilution air, it is recommended that CPVC or ABS pipe and fittings (MUST USE SUPPLIED VENT TERMINAL) be used.

Horizontal Installation: In a horizontal application, it is important that condensate not be allowed to buildup in the exhaust vent pipe. To prevent this from happening the pipe should be installed with an slight upward slope so the condensate will run back toward the water heater. The vent system should be supported every 5 feet of vertical run and every 3 feet of horizontal run of vent pipe length.

Stress levels in the pipe and fittings can be significantly increased by improper installation. If rigid pipe clamps are used to hold the pipe in place, or if the pipe cannot move freely through a wall penetration, the pipe may be directly stressed, or high thermal stre sses may be formed when the pipe heats up and expands. Install accordingly to minimize such stresses.

Follow the following procedure to vent through the wall:

1. Cut two 3 1/2 in. (8.9 cm) diameter holes (for 3” (7.6 cm ) diameter pipe) or 4 ½” (11.4 cm) diameter

holes (for 4” (10.2 cm ) diameter pipe) in the wall with the centerline hole distances at least 18” (45.72 cm) apart in the location where the exhaust vent and air intake terminals will exit the outside wall if vented on the same wall.

2. Use the proper PVC cement to secure the 90° exhaust vent and air intake terminals provided with the

water heater to the plastic pipes. The distance between the back edge of the 90° exhaust vent terminal and the exterior wall (see Figure 13) must be 6 inches (12.7 cm) more for the exhaust vent terminal than the air intake terminal. Use the proper cement or sealant and assembly procedures to secure the vent connector joints between the terminal and the blower outlet. Provide support brackets for every 3 feet (.91 m) of horizontal vent.

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Page 22

Figure 13. Typical Horizontal Direct Vent System

Vertical Installation:

Vertical venting system must be supported every 5 feet of vertical run and every 3 feet of horizontal run of vent pipe length.

Stress levels in the pipe and fittings can be significantly increased by improper installation. If rigid pipe clamps are used to hold the pipe in place, or if the pipe cannot move freely through a wall penetration, the pipe may be directly stressed, or high thermal stresses may be formed when the pipe heats up and expands. Install accordingly to minimize such stresses.

Follow the following procedure to vent through the roof:

1. Cut the necessary holes through the roof and ceiling

2. Install the exhaust vent and air intake plastic pipes as shown in Figure 14. Make sure that the installation meets the local codes and/or The National Fuel Gas Code ANSI Z223.1 (Latest Edition) or CGA/CAN B149 Installation Code.

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Page 23

Figure 14. Typical Vertical Direct Vent System Installation

Through The Wall Venting With Low Ground Clearance: When venting cannot exit through the wall at a height greater than or equal to 12” (30.5 cm) (and above expected snow level) from the ground, then the installation must be modified as shown below (see Figure 15).

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Figure 15. Vent Terminal (Low Ground Clearance)

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Maximum Vent Length :

Direct Vent Maximum Vent Length

Model

Number EF60T125, EF100T150 120 170 EF60T150, EF100T199 100 150

EF60T199, EF100T250

EF100T300

Determining required vent length:

1. Determine the total length of straight vent pipe (in feet) required for both the intake and the exhaust.

2. Add 5 feet of venting for every 90° elbow.

3. Add 2 ½ feet of venting for every 45° elbow.

Max Vent Length (feet)

3" PVC, CPVC, or ABS

80 60

Table 3

Max Vent Length (feet)

4" PVC, CPVC, or ABS

130 120

4. Total vent length can not exceed “Max Vent Length” in Table 3.

5. Air intake can not exceed exhaust by more than 30 feet in any venting situation.

NOTICE

Do not include the 3” exhaust elbow or vent terminals in determining maximum vent length.

POWER VENT INSTALLATION

Power venting is where the indoor air is used and the exhaust is vented to the outside. Venting may be run horizontally through an outside wall or vertically through a roof through using either 3 inch (7.6 cm) or 4 inch (10.2 cm) diameter PVC, ABS or CPVC. This water heater is supplied with a screened intake and exhaust 90° elbow referred to as the exhaust vent terminal and the air intake terminal.

Power Vent Terminal Location Refer to the “Direct Vent Terminal Location” section previously mention to determine the proper exhaust vent location. Plan the vent system layout so that proper clearances are maintained from plumbing and wiring. Vent pipes serving power vented appliances are classified by building codes as “vent connectors”. Required clearances from combustible materials must be provided in accordance with information in this manual under LOCATION OF WATER HEATER and CLEARANCES, and with National Fuel Gas Code and local codes.

NOTICE

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proper cement must be used for all joints, including joining the pipe to the Termination (PVC material). PVC materials should use ASTM –D2564 grade cement; CPVC materials should use ASTM F-493 grade cement; and ABS materials should use ASTM D-2235 grade cement. For water heaters in locations with high ambient temperatures (above 100°F) and/or insufficient dilution air, it is recommended that CPVC or ABS pipe and fittings (MUST USE SUPPLIED VENT TERMINAL) be used.

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Horizontal Installation: In a horizontal application, it is important that condensate not be allowed to buildup in the exhaust vent pipe. To prevent this from happening, the pipe should be installed with an slight upward slope. The vent system should be supported every 5 feet of vertical run and every 3 feet of horizontal run of vent pipe length.

Stress levels in the pipe and fittings can be significantly increased by improper installation. If rigid pipe clamps are used to hold the pipe in place, or if the pipe cannot move freely through a wall penetration, the pipe may be directly stressed, or high thermal stresses may be formed when the pipe heats up and expands. Install accordingly to minimize such stresses.

Follow the following procedure to vent through the wall:

1. Cut one 3 1/2 in. (8.9 cm) diameter hole (for 3” (7.6 cm ) diameter pipe) or 4 ½” (11.5 cm) diameter hole (for 4” (10.2 cm ) diameter pipe).

2. Use the proper PVC cement or sealant to secure the 90° exhaust vent terminal provided with the water heater to the plastic pipes. The distance between the back edge of the 90° exhaust vent terminal and the exterior wall (see Figure 16) must be 6 inches (13.0 cm). Use the proper cement and assembly procedures to secure the vent connector joints between the terminal and the blower outlet. Provide support brackets for every 3 feet (1.0 m) of horizontal vent.

Figure 16. Typica l Horizontal Power Vent System

Vertical Installation:

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Vertical venting must be supported every 5 feet of vertical run and every 3 feet of horizontal run of vent pipe length.

Stress levels in the pipe and fittings can be significantly increased by improper installation. If rigid pipe clamps are used to hold the pipe in place, or if the pipe cannot move freely through a wall penetration, the pipe may be directly stressed, or high thermal stresses may be formed when the pipe heats up and expands. Install accordingly to minimize such stresses.

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Follow the following procedure to vent through the roof:

1. Cut the necessary holes through the roof and ceiling

2. Install the exhaust vent and air intake plastic pipes as shown in Figure 17. Make sure that the installation meets the local codes and/or The National Fuel Gas Code ANSI Z223.1 (Latest Edition) or CGA/CAN B149 Installation Code.

Figure 17. Typical Vertical Power Vent System Installation

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Page 27

property damage, personal injury, or death.

liance.

Before beginning any installation, be sure the main electrical disconnect switch is in the OFF position. Electrical

Maximum Vent Length Determination

Model

Number EF60T125, EF100T150 120 170 EF60T150, EF100T199 100 150

EF60T199, EF100T250

EF100T300

Figure 18. Vent Terminal (Low Ground Clearance)

Power Vent Maximum Vent Length

Max Vent Length (feet)

3" PVC, CPVC, or ABS

80 60

Max Vent Length (feet) 4" PVC, CPVC, or ABS

130 120

Table 4

Determining required vent length:

1. Determine the total length of straight vent pipe (in feet) required.

2. Add 5 feet of venting for every 90° elbow.

3. Add 2 ½ feet of venting for every 45° elbow.

4. Total vent length can not exceed “Max. Vent Length” in Table 4.

NOTICE

Do not include the 3” exhaust elbow or vent terminals in determining maximum vent length.

COAXIAL VENTING INSTALLATION PROCEDURE

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WARNING

Improper installation, adjustment, service, or maintenance can cause Consult a qualified installer, service agency, or the gas supplier for information or assistance.

This kit must be used only for terminating this water heater. Do not use this termination kit for any other app Using this kit on other appliances and/or water heaters can result in property damage, personal injury, or death. DO NOT operate this water heater until the installation and assembly of this kit is complete and the piping completed. Failure to complete installation before operation can result in property damage, personal injury, or death.

Page 28

shock can cause personal injury or death.

DO NOT operate this water heater with the rain cap removed or recirculation of combustion products may occur.

Water may also collect inside larger combustion-air pipe and flow to the burner assembly. Failure to follow this warning could result in product damage, or improper operation, personal injury or death.

CAUTION

DO NOT use field -supplied couplings to extend pipes. Airflow restriction will occur and the water heater pressure switches may cause intermittent problems.

Vertical Installation (Recommended)

1. Become familiar with coaxial vent kit part no. 239-44069-01.

Figure 19. Dimensional Layout of Concentric Vent Kit

2. Determine the best location for the termination kit.

3. Cut the recommended 5” diameter hole.

4. Partially assemble vent kit by performing the following: a. Cement concentric Y fitting to larger diameter pipe. (See Figure 20). b. Cement rain cap to smaller diameter pipe. (See Figure 21).

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Figure 20. Concentric Vent Kit Part Identification

Figure 21. Rain Cap to Small Vent Pipe Ass’y

Page 29

5. Install concentric Y fitting and pipe assembly through the structure’s hole and field-supplied roof

boot/flashing. Do not allow insulation or other materials to accumulate inside pipe assembly when installing through the hole.

6. Secure assembly to roof structure as shown in Figure 22 using field-supplied metal strapping or equivalent

support material.

NOTICE

Ensure termination height is above the roof surface or anticipated snow level. Figure 22. If assembly is too short to meet height requirements, the 2 pipe supplied in the kit may be replaced by using the same diameter pipe. DO NOT extend the overall dimension by more than 60 in. See Fig. 19.

Figure 22. Concentric Vent Roof Top Attachment

7. Install rain cap and small diameter pipe assembly in roof penetration assembly. Ensure small diameter pipe

is cemented and bottomed in Y concentric fitting.

8. Cement heater combustion-air and vent pipes to concentric y fitting assembly (Figure 20). See Figure 22

for proper pipe attachment.

9. Operate heater through one cycle to ensure combustion-air and vent pipes are properly connected to

concentric vent termination connections.

Horizontal Installation :

1. Become familiar with coaxial vent kit part no. 239-44069-01. As shown in Figures 19 through 21.

2. Determine the best location for the termination kit.

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Position termination where vent vapors will not damage plants/shrubs or air conditioning equipment. Position termination where vent vapors will not be adversely effected by wind condition. Position termination where it will not be damaged or be subjected to foreign objects. Position termination where vapors will not be objectionable.

3. Cut the recommended 5” diameter hole.

4. Partially assemble vent kit. a. Cement Y concentric fitting to larger diameter kit pipe. (See Figure 20).

NOTICE

Page 30

b. Cement rain cap to smaller diameter kit pipe. (See Figure 21).

5. Install concentric Y fitting and pipe assembly through the structure’s hole and field-supplied roof

boot/flashing. Do not allow insulation or other materials to accumulate inside pipe assembly when installing through the hole.

6. Install rain cap and small diameter pipe assembly in concentric Y fitting and large pipe assembly. Ensure

small diameter pipe is cemented and bottomed in concentric Y fitting.

7. Secure assembly to structure as shown in Figure 23. Ensure clearances as shown in Figure 23.

Figure 23. Concentric Vent Side Wall Attachment

8. Cement heater combustion-air and vent pipes to concentric Y fitting termination assembly. See Figure 23

for proper pipe attachment.

9. Operate heater through one cycle to ensure combustion-air and vent pipes are properly connected to

concentric vent termination connections.

VENT PIPE PREPARATION

WARNING

DO NOT attempt to start this water heater until vent pipe solvent fumes completely clear from the room and inside the vent piping.

INITIAL PREPARATION

1. Make sure the solvent cement you are planning to use is designed for the specific application you are attempting.

2. Know the physical and chemical characteristics and limitations of the PVC, PVC cellular core, ABS or CPVC piping materials that you are about to use.

INTERNET VERSION FOR REFERENCE ONLY

3. Know the reputation of your pipe and cement manufacturer and their products.

4. Know your own qualifications or those of your contractor. The solvent welding technique of joining PVC, PVC cellular core, ABS or CPVC pipe is a specialized skill just as any other pipe fitting technique.

5. Closely supervise the installation and inspect the finished job before start-up.

6. Contact the manufacturer, supplier, or competent consulting agency if you have any questions about the application or installation of PVC, PVC cellular core, ABS or CPVC pipe.

7. Take the time and effort to do a professional job. Shortcuts will only cause you problems and delays in start -up. The majority of failures in these systems are the result of shortcuts and/or improper joining techniques.

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SELECTION OF MATERIALS

The water heater is not intended for operation at higher than 14.0 inch water column (½ psi) supply gas pressure.

PRIMER – It is recommended that Tetrahydrofuran (THF) be used to prepare the surfaces of pipe and fittings for solvent welding. Do not use water, rags, gasoline or any other substitutes for cleaning PVC cellular core, ABS or CPVC surfaces. A chemical cleaner such as MEK may be used.

CEMENT – The cement should be a bodied cement of approximately 500 to 1600 centipoises viscosity contain ing 10-20% (by weight) virgin PVC material solvated with tetrahydrofuran (THF). Small quantities of dimethylformamide (DMF) may be included to act as a retarding agent to extend curing time. Select the proper cement; Schedule 40 cement should be used for Schedule 40 pipe. Never use all-purpose cements, commercial glues and adhesives or ABS cement to join PVC or CPVC pipe and fittings.

SAFETY PRECAUTION: PRIMERS AND CEMENTS ARE EXTREMELY FLAMMABLE AND MUST NOT BE STORED OR USED NEAR HEAT OR OPEN FLAME. ALSO, USE ONLY IN A WELL VENTILATED AREA.

SECTION VII: GAS CONNECTIONS

WARNING

Connect this water heater only to the type of gas as shown on the rating plate. Use clean black iron pipe or equivalent material approved by local codes and ordinances. (Dirt and scale from the pipe can enter the gas valve and cause it to malfunction). The inlet gas line must have at least a 3 inch (7.62 cm) drip leg (sediment trap) installed as close to the water heater’s gas valve as possible. A ground joint union must be installed in the gas supply line, as close to the water heater as possible, to permit servicing of the water heater. Compounds used on the threaded joints of the gas piping must be resistant to the action of liquefied petroleum g ases/propane gas. DO NOT apply pipe dope to the gas valve inlet and make certain that no pipe dope has become lodged in the inlet screen of the gas valve. Extreme care must be taken to ensure no pipe dope enters the gas valve and to avoid excessive torque when tightening the gas supply line to the gas valve. Excessive torque may result in cracking of the gas valve housing. The suggested maximum torque is 31.5 foot lbs. (4.4 kg -m). The manufacturer of this water heater will not be liable for any damage or injury caused as a result of a cracked gas inlet as a result of excessive torque.

This water heater and its gas connection must be leak tested before placing the water heater in operation. Check for gas leaks with a soap and water solution and a brush or a commercial leak detector fluid. NEVER USE A MATCH OR OPEN FLAME FOR TESTING!

Higher gas supply pressures require supplemental reducing service regulation. Exposure to higher gas supply pressure may cause damage to the gas controls which could result in fire or explosion. If overpressure has occurred such as through improper testing of gas lines or emergency malfunction of the supply system, the gas valve must be checked for safe operation. Make sure that the outside vents on the supply regulators and the safety vent valves are protected against blockage. These are parts of the gas supply system, not the water heater.

INTERNET VERSION FOR REFERENCE ONLY

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.

Page 32

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 14.0 inch W.C. and a minimum supply pressure as shown on the rating plate. The inlet gas pressure must not exceed the maximum value.

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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Page 33

SECTION VIII: ELECTRICAL CONNECTIONS

WARNING

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.

All electrical wiring must be installed and grounded in accordance with local codes, or in the absence of local codes, the National Electrical Code, ANSI/NFPA 70 and/or CSA C22.2 Electrical Code.

The water heater must be wired to a 120 VAC, 60 Hz, 15A power supply. The water heater should be connected to a GFI outlet and wired on a separate circuit and breaker. If a flexible line cord and plug is permitted by local code, then provide a three wire GFI grounding type receptacle within reach of the line cord provided on the control box. Do not plug the line cord into a receptacle that can have the power supply interrupted by a switch that is used to control lights or another appliance.

If wiring in conduit is required, remove the line cord and strain relief bushing in the control panel and install an electrical conduit connector. Connect the hot, neutral, and ground leads to the terminal block using quick connect terminals. Refer to the wiring diagram for the cor rect terminal locations for each wire lead.

CAUTION

Do not energize the electric circuit before the water heater tank is filled with water. This controller is Polarity sensitive. If the Hot and Neutral Supply voltage is reversed, the controller will not sense

flame and the water heater will not operate. Verify polarity before connecting the water heater.

WIRING DIAGRAM AND SCHEMATIC

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Figure 25. Wiring Diagram and Schematic

Page 34

SECTION IX: OPERATING INSTRUCTIONS

WARNING

Water heaters are heat-producing appliances. To avoid damage or injury there must be no materials stored against the water heater or direct vent system, and proper care must be taken to avoid unnecessary contact (especially by children) with the water heater and direct vent system. UNDER NO CIRCUMSTANCES SHOULD FLAMMABLE MATERIALS, SUCH AS GASOLINE OR PAINT THINNER BE USED OR STORED IN THE VICINITY OF THIS WATER HEATER OR IN ANY LOCATION FROM WHICH FUMES COULD REACH THE WATER HEATER.

Installation or service of this water heater requires ability equivalent to that of a licensed tradesman in the field involved. Plumbing, air supply, venting, gas supply and electrical work are required.

Light the unit in accordance with the operating instructions label attached to the water heater. Under no circumstances should the input rate exceed the input rate shown on the water heater rating plate. Over

firing could result in damage or sooting of the water heater. If the unit is exposed to the following, do not operate water heater until all corrective steps have been made by a

factory authorized independent service contractor or qualified service professional.

1. Flooding to or above the level of the burner or controls

2. External firing

3. Damage

4. Firing without water

5. Sooting

NEVER OPERATE THE WATER HEATER WITHOUT FIRST BEING CERTAIN IT IS FILLED WITH WATER AND A TEMPERATURE AND PRESSURE RELIEF VALVE IS INSTALLED IN THE RELIEF VALVE OPENING OF THE WATER HEATER.

GENERAL INSTRUCTIONS

TO FILL THE WATER HEATER

1. Close the water heater drain valve by turning the knob or valve stem clockwise. If alternative water connections are provided but not used, make certain they are plugged (i.e. rear connections).

2. Open the cold water supply shut-off valve.

3. Open several hot water faucets to allow air to escape from the system.

4. When a steady stream of water flows from the faucets, the water heater is filled. Close the faucets and check for water leaks at the water heater drain valve, combination temperature and pressure relief valve and the hot and cold water connections.

SEQUENCE OF OPERATION

1. A call for heat from thermostat

2. Blower ON

3. Pressure switch proves blower operation

4. Blower pre-purge

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5. Igniter warm -up

6. Main burner ON

7. Flame signal confirmed

8. Thermostat satisfied

9. Main burner OFF

10. Blower post -purge

Page 35

LIGHTING INSTRUCTIONS

Figure 26.

Lighting Instruction Label

TEMPERATURE ADJUSTMENT

The temperature selector knob of the thermostat has been adjusted to 120°F when shipped from the factory.

NOTICE

The lower the temperature setting, the greater the energy efficiency, both to heat the water and to maintain the storage temperature during standby periods. Lower water temperatures also extend tank life. Remember, no water heating system will provide exact temperatures at all times. Allow a few days of operation at this setting to determine the correct temperature setting consistent with the requirements for the installation.

This water heater, when set at a lower temperature setting is not capable of producing hot water of sufficient temperature for sanitizing purposes.

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CAUTION

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During the winter season or any cold period, you may desire a higher temperature setting to adjust for the colder

135°F (57°C). To protect against hot water injury, install an ASSE approved mixing valve in the water system.

incoming water. This adjustment, however, may cause additional condensation to form on the colder tank surface. This does not mean the tank is leaking. During summer months, the warmer incoming water temperatures will benefit the performance of your water heater and reduce the amount of condensation developed.

Condensation does not mean your tank is leaking. Most of reported tank leaks on installation are proven to be condensation. To avoid unnecessary inconvenience and expense, make sure the tank is leaking before calling an independent servicing contractor or qualified service professional.

DANGER

Hotter water increases the risk of scald injury. Scalding may occur within 5 seconds at a temperature setting of

This valve will reduce point of discharge temperature by mixing cold and hot water in branch water lines. A licensed plumbing professional or local plumbing authority should be consulted.

This water heater is equipped with an energy cut out device to prevent overheating. Should overheating occur or the gas supply fail to shut off, turn off the manual gas control valve to the appliance and call a qualified service agency.

If the water heater is to remain idle for 30 days or more or is subjected to freezing temperatures while shut off, the water heater and piping should be fully drained and the drain valve should be left fully open. Refe r to the “General Operation” section of this Installation and Operating Instructions Manual for the procedure on draining the water heater.

BURNER FLAME CHECK

At the time of installation and at monthly intervals, a visual check of the burner flames should be made to determine if they are burning properly. The main burner may be seen through the sight glass window on the front of the combustion insert mounting bracket (Figure 27). The burner flames should be a blue flame near the burner surface in a uni form flame pattern. Occasional yellow or white streaks are normal.

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Figure 27. Sight Glass Location

Page 37

SECTION X: MAINTENANCE

DANGER

DO NOT ATTEMPT TO REPAIR GAS VALVE. DO NOT ATTEMPT TO REPAIR IGNITION MODULE. DO NOT ATTEMPT TO REPAIR VENTURI. DO NOT ATTEMPT TO REPAIR THERMOSTAT BOARD. DO NOT ATTEMPT TO REPAIR TRANSFORMER. DO NOT ATTEMPT TO REPAIR PRESSURE SWITCH.

GENERAL

KEEP APPLIANCE AREA CLEAR AND FREE FROM COMBUSTIBLE MATERIALS, GASOLINE AND OTHER FLAMMABLE VAPORS AND LIQUIDS.

Water heater maintenance includes periodic tank flushing and cleaning, and removal of lime scale. The unit should be inspected and adjusted to maintain proper combustion. Refer to Table 5, “Suggested Maintenance Schedule”. A periodic inspection of the venting system should be made.

MAINTENANCE SCHEDULE

Following are the instructions for performing some of the recommended maintenance. Unit inspection and adjustment should be performed by a competent technician.

Suggested Maintenance Schedule

COMPONENT OPERATION INTERVAL REQUIRED

Tank Sediment Removal Monthly Flushing

Anode Rods Inspect Semi-Annually

Relief Valve Check Operation Semi-Annually

Blower Clean Inlet Screen As Required Soft Brush

Vent & Air

Intake System

Ignition System Inspect Annually

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Vent Terminal

Combustion

System

Condensate

Line

Inspect Every 3 Months

Free of Shrubs &

Debris

Inspect Monthly Confirm S-OP

Inspect Monthly

Table 5.

Monthly

Replace as

Required

Proper

Operation

Joints should

be sealed

Clean of dust

and dirt

Remove object

that caused

restriction

Remove

restriction

Page 38

FLUSHING WATER HEATER

1. Turn OFF the water heater electrical disconnect switch.

2. Open the drain valve and allow water to flow until it runs clean.

3. Close the drain valve when finished flushing.

4. Turn ON the water heater electrical disconnect switch.

DRAINING WATER HEATER

The water heater must be drained if it is to be shut down and exposed to freezing temperatures. Maintenance and service procedures may also require draining the water heater.

1. Turn off the water heater electrical disconnect switch.

2. Connect a hose to the drain valve.

3. Locate hose’s discharge in an area where hot water will not cause any damage or injury.

4. Close the cold water inlet valve to water heater.

5. Open a nearby hot water faucet to vent the system.

6. Open the heater drain valve.

7. If the water heater is being drained for an extended shutdown, it is suggested the drain valve be left open during this period.

FILLING WATER HEATER

1. Close the water heater drain valve by turning the knob or valve stem clockwise. If alternative water connections are provided but not used, make certain they are plugged (i.e. rear connections).

2. Open the cold water supply shut-off valve.

3. Open several hot water faucets to allow air to escape from the system.

SEDIMENT AND LIME SCALE REMOVAL

Waterborne impurities consist of the particles of soil and sand which settle out and form a layer of sediment on the bottom of the tank.

The amount of calcium carbonate (lime) re leased from water is in direct proportion to water temperature and usage. The higher the water temperature or water usage, the more lime deposits are dropped out of the water. This is the lime scale which forms in pipes, water heaters and on cooking utensils.

Lime accumulation not only reduces the life of the equipment but also reduces efficiency of the water heater and increases fuel consumption.

The usage of water softening equipment greatly reduces the hardness of the water. However, this equipment does not always remove all of the hardness (lime). For this reason it is recommended that a regular schedule of deliming be maintained.

The depth of the buildup should be measured periodically. Water heaters will have about 3 inches of lime buildup when the level of lime has reached the bottom of the cleanout opening or about 1 inch of lime buildup if it has reached the drain valve opening. A schedule for deliming should be set up, based on the amount of time it would take for a 1/2 inch buildup of lime.

Example 1: Initial inspection shows ½ an inch of lime accumulation. Therefore, the water heater can be delimed once a year.

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Page 39

To remove sediment and lime scale:

1. Drain the heater. Refer to DRAINING THE WATER instructions in this section.

2. Remove outer cover plate from lower side of water heater jacket.

3. Remove cover and gasket from cleanout opening.

4. Remove lime, scale or sediment using care not to damage the glass-lining.

5. Inspect cleanout plate gasket: Replace gasket if necessary (Contact Bradford White Local Distributor for correct part number).

6. Install gasket and cleanout plate. Be sure to draw plate up tight by tightening screws securely.

7. Close the drain valve. Open a hot water fixture to allow air to escape. Open the cold water supply to water heater and allow the tank to fill. Follow the lighting instructions.

8. Check for water leakage.

9. Install outer jacket cover plate.

ANODE INSPECTION AND REPLACEMENT

This water heater is equipped with multiple sacrificial anodes. Anodes protect the glass-lined tank from corrosion by sacrificing themselves through electrolysis. When the anode material is consumed, there is no more protection and corrosion of the tank accelerates.

Inspection of the anode every 6 months allows you to identify the rate of anode degradation. The anode should be replaced when its diameter is 3/8 of an inch, or annually which ever is first. Aggressive, very hot and softened water causes rapid consumption of the anode requiring frequent inspections. The replacement anodes rods are available from your Bradford White distributor.

To inspect or replace an anode:

The anodes on this water heater are easily accessible from the top of the water heater making replacement simple and quick. Use the following procedure to remove and inspect the anodes.

1. Drain the heater. Refer to DRAINING THE WATER HEATER instructions in this section.

2. Flush the heater. Refer to FLUSHING THE WATER HEATER instructions in this section.

3. Remove the combustion surround top by unlatchi ng.

4. Remove the second pass access cover. (If equipped)

5. Remove the second pass insulation.

6. Remove the second pass collector cover.

7. Remove the anode using a socket of the appropriate size. Sometimes a breaker bar will need to be used. Do not use an impact wrench.

8. Inspect and replace the anode as required. Use pipe tape or sealant when reinstalling the anode.

9. Close the drain valve. Open a hot water fixture to allow air to escape. Open the cold water supply to water heater and allow the tank to fill. Follow the lighting instructions.

10. Check your anode and drain valve for leaks.

11. Replace second pass collector cover. Make sure to clean off any sealant and reseal before fastening.

12. Replace second pass insulation.

13. Replace second pass access cover.

14. Replace combustion surround top and latch it securely in place.

DRAIN VALVE AND TANK ACCESS PANEL

The water heaters are equipped with a ¾ inch drain valve. An access panel covers the cleanout opening in the tank which is sealed by a gasket and cover.

RELIEF VALVE

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Page 40

At least twice a year, the temperature and pressure relief valve should be checked to ensure that it is in operating condition. To check the relief valve, lift the lever at the end of the valve several times. The valve should seat properly and operate freely.

If water does not flow, remove and inspect for obstructions or corrosion. Replace with a new valve of the recommended size as necessary. A thorough inspection of the valve should be performed at least every three years by removing the temperature and relief valve from the tank. Do not attempt to repair the valve, as this could result in improper operation and a tank explosion. In areas with poor water conditions, it may be necessary to inspect the T&P valve more often than the recommended maintenance schedule

CAUTION

Before manually operating the valve, make sure that a drain line has been attached to the valve to direct the discharge to an open drain. Failure to take this precaution could mean contact with extremely hot water passing out the valve during this checking operation.

If the temperature and pressure relief valve on the water heater discharges periodically or continuously, it may be due to thermal expansion of water in a closed water supply system, or, it may be due to a faulty relief valve.

Thermal expansion is the normal response of water when it is heated. In a closed system, thermal expansion will cause the system pressure to build until the relief valve actuation pressure is equaled. Then, the relief valve will open, allowing some water to escape, slightly lowering the pressure.

Contact your water supplier or local plumbing inspector on how to control this situation.

WARNING

Above all, do not plug the temperature and pressure relief valve. This is not a solution and can create a hazardous situation.

VENT AND AIR INTAKE SYSTEM Examine the vent and air intake system every 3 months. Points of inspection are as follows:

1. Check for obstructions and/or deterioration of vent piping and vent terminal. Replace immediately where needed.

2. Vent pipe and vent hood screen should be cleaned of any foreign material. The screen is located inside the vent hood outlet and is accessible from the outside of the hood. Do not reach inside the vent hood when the water heater is in operation.

3. Check all vent system connections for leakage and reseal as required.

COMBUSTION SYSTEM INSPECTION Inspect the operation of the combustion system monthly. Use the following procedure to inspect the combustion system.

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1. Turn off the main power switch of the water heater.

2. Adjust the thermostat to the Min. setting.

3. Remove the top of the combustion surround by unlatching it.

4. While observing the ignition module, turn on the main power switch.

5. Adjust thermostat to the Max. setting.

6. Watch the LED’s light as the controller goes through the S-OP as previously described.

7. Upon ignition, observe the main burner flame.

8. Readjust thermostat to previous setting.

9. Replace combustion surround top and latch it securely in place.

Page 41

SECTION XI: TROUBLESHOOTING GUIDE

Main power light is not lit. Make sure that water heater is plugged in.

When the switch is on, is there 120VAC between L1 and N on the terminal block? If not, then check for loose wire connections on the “Power Switch Wire Harness.” If connections are ok, then replace the switch.

If there is voltage between L1 and N then the light on the switch is burnt out. Replace switch

Thermostat does not call for heat Make sure that the temperature of the tank is cool.

If the thermostat does not call for heat, then check the PRIMARY voltage across the “Transformer”. If there is voltage across the PRIMARY, then check the voltage across the SECONDARY leads of the “Transformer”.

Install a jumper wire from N.O. terminal to the COM terminal on the “Thermostat PC Board.” If the thermostat calls for heat after installing a jumper wire then check the “Thermostat Sensor Probe” leads for proper resistance with an OHM meter (See appendix A).

If sensor reading are not correct, replace “Thermostat Sensor Probe.”

If the sensor readings are correct, then check “Potentiometer” for the proper resistance. If the readings are correct, then replace the “Thermostat PC Board”, otherwise replace the “Potentiometer.”

Ignition module “Power” LED is not lit Check for 120 VAC at the ignition module on “120

VAC IN.” If there is voltage, then replace the ignition module.

If there is not any voltage, check the voltage across the transformer as previously described.

Blower does not energize Is the “Vacuum Switch” (air intake switch) N.C.? If no,

then check the hose and see if it is filled with condensate. If the hose is not filled with condensate, then replace vacuum switch. If filled, empty hose.

Is the “Pressure Switch” (exhaust pressure switch) N.O.?

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Ignitor does not glow Is there voltage to the “Hot Surface Ignitor”? Check for

If no, then check the hose and see if it is filled with condensate. If the hose is not filled with condensate, then replace pressure switch. If filled empty hose.

Is the “Collector Limit Switch” N.C.? If no, then reset switch. If this switch trips more than 3 times, call service.

If all items above are ok, then replace the blower.

120VAC to the ignitor from the ignition module.

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Is there continuity across the “Hot Surface Ignitor?” If no, then replace hot surface ignitor. If yes, then replace the ignition module.

Main valve does not turn on Put your hand on the gas valve. When the “Valve” LED

lights on the ignition module, can you feel it energize? If not, then check the voltages at the ignition module across pins 2 and 7 on the plug “CONTROL”. If there is 24 VAC across these pins, then check to see if the “Rectifier Harness” is secure. If it is secure, then replace the “Gas Valve”

If you can feel the gas valve energize, check the main gas supply is not in the off position.

Burner Flame keeps going out Is there minimum gas supplied to water heater as stated

on the rating plate? If not, then increase the supply pressure to the water heater.

Measure the microAmps through the flame sensor using a multimeter. Is there at least 4 microAmps? If not, then replace the “Flame Sensor” or flame sensor wire.

Thermostat does not satisfy Is the tank temperature above the temperature set point?

Does the T&P relief valve leak? If yes, then replace “Thermostat PC Board.”

Blower did not post purge Check “Vacuum Switch” (air intake switch) as

previously mentioned.

Check “Pressure Switch” (exhaust pressure switch) as previously mentioned.

Check “Collector Limit Switch” as previously mentioned.

If above switches are all ok, then replace “Ignition Module.”

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Page 43

SECTION XI: PARTS LIST

EF – Series Water Heater

1 Combustion Surround Ass'y

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2 Burner Ass'y 3 2nd Pass Top Collector Cover 4 Screw 10-16 x 3/4 5 Vent Termination Elbow 6 Thermostat Sensor Probe 7 Baffle 4” Flue 8 Mag. Rod Ass'y

9 Baffle 2” Flue 10 Wire Harness-Service Panel 11 Plastisert Nipple 1 ½” NPT 12 Plug 13 Nipple 14 T&P Relief Valve 15 Exhaust Pipe (PVC) w/ Barb Tap 16 Condensate Trap Elbow 17 Silicone hose 18 Outer Door Service Panel 19 Vent Pipe Support Bracket 20 NSF Escutcheon 21 Pressure Switch 22 Nuts 23 Collector Limit Switch 24 Screw 6-32 x 3/8 25 Cleanout Access Cover 26 Cleanout Gasket 27 Screw 5/16 - 18 x 3/4 HH Grade 5 28 Cleanout Cover 29 Cold Water Inlet (Hydrojet) Ass'y 30 No Handle Brass Drain Valve

31 Coaxial Vent System 32 Thermostatic Mixing Valve

Page 44

1 Combustion Surround Ass'y

AA Keeper Latch & Catch

BB Screw 8-32 x 1/2 RHCR CC Ignitioin Control Ass'y

DD Jacket Head 28 1/4" Grey

EE Switch Main Power FF Potentiometer

GG Combustion Surround

JJ Surround Bas/Jacket Head

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2 Combustion Ass'y

1A Combustion Ass’y 2A Blower/Gas Valve Ass’y 3A Burner Ass’y 4A Blower – EBM 5A Silicone Hose 6A Tee Hose Connector 7A Screw 10-32 x 3/4 SHCS 8A Gasket & Screw

9A Gas Valve 10A Nipple 1/2 NPT x 3" 11A Reducer 3/4 x 1/2 NPT 12A Nipple 3/4 NPT x 6" 13A 2" dia. Flex Reducer 14A Inlet (PVC) 15A Gasket Blower Transition 16A Screw 8 -32 x 1/4 RHCR 17A Gasket Flame Sensor 18A Flame Sensor 19A Transition Tube 20A Nut Hex Washer 21A Gasket Hot Surface Ignitor 22A Hot Surface Ignitor 23A Burner Mounting Gasket 24A Burner 21 Port 25A Burner Mounting Gasket 26A Burner Mounting Insert 27A Burner Mounting Insert Gasket

Page 45

CC Ignition Control Ass'y

1C Electronics Control Module 2C Screw #8 -32 x 1/2 3C Vacuum Switch 4C Control Mounting Panel 5C Thermostat PC Board 6C Transformer - 120VAC 7C Terminal 8C Terminal Strip

9C Power Cord 10C Controller Wire Harness 11C Thermostat Wire Harness 12C Ignitor Ext. Wire Harness 13C Blower Wire Harness 14C Power Switch Wire Harness 15C Flame Sensor Wire Harness 16C Rectifier Harness

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Page 46

NOTES

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Bradford-White EF User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual