Bradford White LC2PDV50H763N User manual

Brand: Bradford White

Model: LC2PDV50H763N

Type: User manual

238-53250-00A REV 10/19

CONDENSING POWER (DIRECT) VENT GAS

WATER HEATER

A Spanish language version of these instructions is available by contacting the company

listed on the rating plate.

Hay disponible una versión en español de estas instrucciones al comunicarse con la

compañía que se menciona en la placa de datos de servicio.

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.

INSTALLATION AND OPERATION

INSTRUCTION MANUAL

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.

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 family’s comfort, safety and convenience we recommend this

water heater be installed and serviced by a plumbing professional.

CONGRATULATIONS!

You have purchased one of the finest water heaters on

the market today!

This installation and operation manual will explain in

detail the installation and maintenance of your new

Condensing Power Vent/Power Direct Vent Gas Water

Heater. We strongly recommend that you contact a

plumbing professional for the installation of this water

heater.

We require that you carefully read this manual, as well

as the enclosed warranty, and refer to it when

questions arise. If you have any specific questions

concerning your warranty, please consult the

plumbing professional from whom your water heater

was purchased. For your records we recommend that

you write the model, serial number and installation

date of your water heater in the maintenance section in

the back of this manual.

This manual should be kept with the water heater.

TABLE OF CONTENTS

Page

GENERAL INFORMATION ................................................................. 4

INSTALLATION. .................................................................................. 6

Locating the Water Heater ........................................................... 6

Minimum Clearances ................................................................... 8

Venting .......................................................................................... 9

Vent Pipe Preparation and Joining ............................................ 30

Combustion Air Supply ............................................................... 31

Water Connections ....................................................................... 33

Condensate Drain Connection ................................................... 36

Gas Connections .......................................................................... 37

Electrical Connections ................................................................ 38

Wiring Diagram ............................................................................. 39

GENERAL OPERATION...................................................................... 40

Lighting and Shutdown Instructions ......................................... 41

Thermostat Adjustment ............................................................... 42

Burner Flame Check .................................................................... 43

MAINTENANCE ................................................................................... 44

TROUBLESHOOTING ......................................................................... 47

PARTS DIAGRAM ............................................................................... 50

INSTALLATION INSTRUCTIONS FOR POTABLE WATER AND

SPACE HEATING ................................................................................ 51

NOTES ................................................................................................. 52

GENERAL INFORMATION

This gas-fired water heater is design certified by CSA International under the

American National Standard Z21.10.3 and CAN/CGA 4.3-M most current

editions at the time of manufacture. This is a category IV water heater.

This water heater must be installed in accordance with local codes or, in the

absence of local codes, the National Fuel Gas Code, ANSI Z223.1-Latest

Edition) and/or in Canada CAN/CGA B149 Installation Codes (Latest Editions).

The warranty for this water heater is in effect only when the water heater is

installed, adjusted, and operated in accordance with these Installation and

Operation Instructions. The manufacturer will not be held liable for any damage

resulting from alteration and/or failure to comply with these instructions.

This water heater is NOT design certified for installation in a mobile home.

Such an installation may create a hazardous condition and will nullify the

warranty.

DO NOT use this appliance if any external part to the tank has been

submerged in water. You should contact a qualified service technician to

inspect the appliance and to replace any part of the control system including

the gas control which has been submerged in water. See the Gas Connections

section of this manual before servicing or replacing a water heater that has had

any external part to the tank submerged in water.

Make sure that you check the rating plate and gas control on the water heater

to be certain that the type of gas being supplied corresponds with the marking

on the rating plate and gas control.

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.

General Information continued-

Sacrificial anodes are used to extend tank life. Anode removal, except for

inspection and/or replacement, will nullify the warranty. In areas where water is

unusually active, an odor may occur at the hot water faucet due to a reaction

between the sacrificial anodes and the impurities in the water. If this should

happen, alternative anodes may be purchased from the supplier that installed

this water heater. This will minimize the odor while protecting the tank.

Additionally, the water heater should be flushed with appropriate dissolvers to

eliminate any bacteria.

DANGER

This product contains one or more chemicals known to the State

of California to cause cancer, birth defects, or reproductive harm.

INSTALLATION

Locating the Water Heater

DO NOT install the water heater in any location where gasoline or

flammable vapors are likely to be present.

Water heaters in residential garages must be installed so that all burner(s)

and burner ignition device(s) are located not less than 18 in. (46 cm)

above the floor and must be located or protected to avoid physical

damage. For other installations refer to local codes. In the absence of

local codes, the water heater must be installed in compliance with the

National Fuel Gas Code, ANSI Z223.1 - (Latest Edition) and/or in Canada,

CAN/CGA B149 Installation Codes (Latest Editions).

The location of this water heater is of the utmost importance. Before installing

this water heater, read the installation section of these instructions. After

reading these installation and operation instructions, select a location for the

water heater where the floor is level and is easily accessible to gas and water

supply lines.

DO NOT locate the water heater where water lines could be subjected to

freezing temperatures. Make sure the cold water pipes are not located

directly above the gas control so that condensate during humid weather

does not drip on the controls.

Water heater corrosion and component failure can be caused by the heating

and breakdown of airborne chemical vapors. Examples of some typical

compounds that are potentially corrosive are: spray can propellants, cleaning

solvents, refrigerator and air conditioning refrigerants, swimming pool

chemicals, calcium and sodium chloride, waxes and process chemicals. These

materials are corrosive at very low concentration levels with little or no odor to

reveal their presence.

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 SHOULD 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.

Installation (Locating the Water Heater) continued-

NOTE: Damage to the water heater caused by exposure to corrosive vapors is

not covered by the warranty. DO NOT operate the water heater if exposure has or

will occur. DO NOT store any potentially corrosive compounds in the vicinity of

the water heater.

To comply with NSF requirements this water heater is to be:

a) Sealed to the floor with sealant, in a smooth and easily cleanable way,

b) Installed with an optional leg kit that includes legs and/or extensions that

provide a minimum clearance of 6” beneath the water heater.

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

Liquefied petroleum gases/propane gas are 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 for

accumulation of leaking 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.

• Immediately call your gas supplier from a neighbor’s telephone.

Follow the gas supplier’s instructions.

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

DO NOT OPERATE APPLIANCE UNTIL THE LEAKAGE IS

CORRECTED!

Installation (Locating the Water Heater) continued-

The water heater must be located close enough to the outside wall to keep the venting

distance within the maximum distance described in the installation instructions. Locate

the water heater as close as possible to the vent opening. Read the venting section in

this instruction manual before locating the water heater.

This water heater must be located in an area where leakage of the tank, condensate

trap, or water line connections and 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. Verify all condensate tubing is properly connected to the blower for

proper drainage. When such locations cannot be avoided, a suitable drain pan

adequately piped for proper drainage must be installed under the water heater. The pan

must not restrict combustion air flow. The drain pan must have a minimum length and

width of at least 4 in. (10.2 cm) greater than the diameter of the water heater and must

not restrict proper combustion air flow to the water 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 3/4 in. (1.9 cm) in diameter and

pitched for proper drainage.

It is recommended that a minimum clearance of 4 in. (10.2 cm) be provided on the side

of the water heater for servicing and maintenance of the combination temperature and

pressure relief valve.

This water heater MUST be installed indoors out of the wind and weather.

NOTE: For California installation this water heater must be braced, anchored, or

strapped to avoid falling or moving during an earthquake. See instructions for

correct installation procedures. Instructions may be obtained from DSA

Headquarters Office, 1102 Q Street, Sacramento, CA 95811.

Minimum Clearances

This installation must allow access to the front of the water heater and adequate

clearance must be provided for servicing and operating this water heater. The water

heater may be installed on either a combustible or non-combustible floor. If the

water heater is to be installed directly on carpeting, it must be installed on top of a

metal or wood panel extending beyond the full width and depth of the appliance by

at least 3 in. (7.6 cm) in any direction or, if the appliance is to be installed in an

alcove or closet, the entire floor must be covered by the panel. The minimum

clearances to combustibles for this water heater are: 0 in. from the sides and rear, 5

in. (12.7 cm) from the front of the jacket, 0 in. from the vent connector and 15 in.

(38.1 cm) from the jacket top. Increase distances to provide clearance for servicing.

WARNING

Failure to adhere to these installation and operation instructions

may create a hazard to life and property and will nullify the warranty.

IMPORTANT

This water heater can be installed as either power direct vent 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. Horizontal and vertical venting can be mixed. Determine which system

is best for your application and install as described in the following sections.

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 power 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.

Power Direct Vent Installation

Venting may be run horizontally through an outside wall or vertically

through a roof through using either 2 in. (5.1 cm), 3 in. (7.7 cm), or 4 in.

(10.2 cm) diameter pipe. This water heater is supplied with a screened

intake elbow and exhaust coupling referred to as the air intake terminal and

the exhaust vent terminal.

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 2 in (5.1 cm), 3 in (7.7 cm), or 4 in. (10.2

cm) diameter pipe.

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 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

startup 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.

Venting continued-

WARNING

Risk of carbon monoxide poisoning or fire due to joint separation or pipe

breakage.

This water heater must be properly vented and connected to an approved vent

system in good condition. DO NOT operate the 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. The acceptance of the venting

system is dependent upon full compliance with these installation instructions.

The venting system must NOT pass through rated fire separations.

The venting system must be free to expand and contract. This venting system must

be supported in accordance with these instructions.

NOTICE

For installations in Canada, field supplied vent piping must comply with CAN/CGA

B149.1 (Latest Edition) and be certified to the Standard For Type BH, Class II,

65°C, Gas Venting Systems, ULC S636. Components of this listed system shall

not be interchanged with other vent systems or unlisted pipe/fittings. All

components and specified primers and cements of the certified vent system must

be from a single system manufacturer and not intermixed with other system

manufacturer’s vent system parts. The supplied vent connector and vent

termination are certified under ULC S636 and are also certified as part of the water

heater. Refer to the following tables for approved venting materials, primers, and

cements. All approved primers and cements are to be used within their marked

time limitations.

Approved Venting Materials

For installations in the US only

• PVC DWV (ASTM D-2665)

• PVC Sch. 40, 80, 120 (ASTM-D1785)

• CPVC Sch. 40, 80 (ASTM-F441)

• CPVC (ASTM D2846)

• ABS Sch. 40 DWV (ASTM D2661)

For installations in CANADA

• ULC S636 approved PVC for flue gas

venting rated Class II, 65°C

• ULC S636 approved CPVC for flue

gas venting rated Class II, 65°C

Approved Primers and Cements

For installations in the US only

• PVC and CPVC Primer (ASTM-F656)

• PVC Cement (ASTM D-2564)

• CPVC Cement (ASTM F493)

• ABS Primer and Cement (ASTM D-

2235)

For installations in CANADA

• ULC S636 approved Primer and

Cement for flue gas venting rated

Class II, 65°C

NOTICE

Use of cellular core PVC (ASTM F891), cellular core CPVC, or Radel

(polyphenosulfone) in non-metallic venting systems is prohibited and covering

non-metallic venting with thermal insulation is prohibited.

Venting continued-

This water heater has a certified category IV, per latest ANSI Z 21.10.3-2015.CSA

4.3-2015 revision. Refer to the latest edition of the National Fuel Gas Code (ANSI

Z223.1-latest edition), or in Canada, the Natural Gas and Propane installation Code

(B149.1-00 latest edition).

Power 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 in Figure 1a.

Power 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 in Figure 1b.

NOTICE

Before beginning installation of any vent pipe, read the vent pipe manufacturer’s

installation instructions.

DO NOT install the water heater in any location where the ambient temperature may

fall below freezing. 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.

The vent shall terminate a minimum of 12 in. (30.5 cm) 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 wall.

A service drain loop must be installed in the drain tubing to serve as a condensate

trap to prevent flue gases from escaping into the room.

DO NOT position the air intake above the exhaust terminal.

NEVER locate the air intake where exhaust gases can be introduced.

Venting continued-

Figure 1a – Direct Vent and Powered Direct Vent Terminal Clearances

Canadian Installations

US Installations

Clearance above grade, veranda, porch, deck or

balcony

12 inches

(30 cm)

12 inches

(30 cm)

Clearance to window or door that may be opened

12 inches

(30 cm)

12 inches

(30 cm)

Clearance to permanently closed window

Vertical clearance to ventilated soffit located above

the terminal within a horizontal distance of 2 feet

(61 cm) from the center line of the terminal

Clearance to unventilated soffit

Clearance to outside corner

Clearance to inside corner

Clearance to each side of center line extended

above meter/regulator assembly

3 feet (91 cm) within a

height 15 feet (4.6 m)

above the meter/regulator

assembly

Clearance to service regulator vent outlet or oil tank

vent

36 inches

(91 cm)

Clearance to non-mechanical air supply inlet to

building or the combustion air inlet to any other

appliance

12 inches

(30 cm)

12 inches

(30 cm)

Clearance to a mechanical air supply inlet

6 feet

(1.83 m)

3 feet (91 cm)

above if within 10

feet horizontally

Clearance above paved sidewalk or paved

driveway located on public property

7 feet

(2.13 m) †

7 feet

(2.13 m) †

Clearance under a veranda, porch, deck, or

balcony

12 inches

(30 cm) ‡

12 inches

(30 cm) ‡

In accordance with the current CAN/CGA-B149 Installation Codes.

In accordance with the current ANSI Z223.1-(Latest Edition)/NFPA 54 National Fuel Gas Code.

† A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single-family

dwellings and serves both dwellings.

‡ Permitted only if a veranda, porch, deck or balcony is fully open on a minimum of two sides beneath the floor.

*a) A minimum clearance value determined by testing in accordance with section 2.20.

*b) “Clearance in accordance with local installation codes and the requirements of the gas supplier”.

Venting continued-

Figure 1b – Vent Terminal Clearances (Other than Direct Vent or Powered Direct Vent

Installations)

Canadian Installations

US Installations

Clearance above grade, veranda, porch,

deck or balcony

12 inches

(30 cm)

12 inches

(30 cm)

Clearance to window or door that may be

opened

12 inches

(30 cm)

4 feet (1.2 m) below or to the

side of opening; 12 inches

(30 cm) above opening

Clearance to permanently closed window

Vertical clearance to ventilated soffit located

above the terminal within a horizontal

distance of 2 feet (61 cm) from the center line

of the terminal

Clearance to unventilated soffit

Clearance to outside corner

Clearance to inside corner

Clearance to each side of center line

extended above meter/regulator assembly

Clearance to service regulator vent outlet or

oil tank vent

36 inches

(91 cm)

Clearance to non-mechanical air supply inlet

to building or the combustion air inlet to any

other appliance

12 inches

(30 cm)

4 feet (1.2m) below or to

side of opening; 12 inches

(30 cm) above opening.

Clearance to a mechanical air supply inlet

6 feet

(1.83 m)

3 feet (91 cm) above if within

10 feet horizontally

Clearance above paved sidewalk or paved

driveway located on public property

7 feet

(2.13 m) †

7 feet

(2.13 m) †

Clearance under a veranda, porch, deck, or

balcony

12 inches

(30 cm) ‡

In accordance with the current CAN/CGA-B149 Installation Codes.

In accordance with the current ANSI Z223.1-(Latest Edition)/NFPA 54 National Fuel Gas Code.

† A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single-family

dwellings and serves both dwellings.

‡ Permitted only if a veranda, porch, deck or balcony is fully open on a minimum of two sides beneath the floor.

*a) A minimum clearance value determined by testing in accordance with section 2.20.

*b) “Clearance in accordance with local installation codes and the requirements of the gas supplier”.

Venting continued-

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 near soffit vents or crawl space or other area where condensate or

vapor could create a nuisance or hazard or cause property damage.

2. Do not terminate the exhaust vent terminal where condensate or vapor could cause

damage or could be detrimental to the operation of regulators, relief valves, or other

equipment.

3. Do not terminate the exhaust vent terminal over public area or walkways where

condensate or vapor can cause nuisance or hazard.

4. The vent shall terminate a minimum of 12 inches (25.4 cm) above expected

snowfall level to prevent blockage of vent termination.

Vent pipes serving power vent 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 “Locating the Water Heater,”

“Minimum Clearances,” and with the National Fuel Gas Code and local codes.

Clearance to combustibles for all venting pipes

and terminals

For installations in the US

0” minimum

For installations in Canada

Refer to vent pipe and terminal

manufacturer’s installation

instructions for clearances to

combustibles.

DO NOT place insulation or other materials in the required clearance spaces

between the venting to combustible material unless otherwise specified.

Venting continued-

Venting System Condensation

Condensate formation will occur in the venting of this condensing unit, whether as a

power vent water heater or a power direct vent water heater. In order to effectively drain

the condensate from the venting, tubing has been installed on a factory supplied exhaust

adapter with drain outlet mounts on the blower. The tubing will drain any accumulated

condensate from the venting system.

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 a slight upward slope of ¼ in./ft. (.6 cm/.3 m). The vent system

must be supported every 5 ft. (1.5 m) of vertical run and every 5 ft. (1.5 m) of

horizontal run of vent pipe length.

This water heater is a condensing power vented or power direct vented appliance and is

designed to vent its products of combustion through 2 in. (5.1 cm), 3 in. (7.6 cm), or 4 in.

(10.2 cm) diameter vent pipe to the outdoors. This water heater may be either vented

horizontally through the wall or vertically through the roof. Use a 2 in. (5.1 cm) to 3 in.

(7.6 cm) reducer to connect to the vent outlet when using 3 in. (7.6 cm) vent pipe or 2 in.

(5.1 cm) to 4 in. (10.2 cm) reducer to connect to the vent outlet when using 4 in. (10.2

cm) vent pipe. Apply the proper cement at the joint locations.

Table 1 lists the maximum vent lengths for this water heater using 2 in. (5.1 cm) vent

pipe. Locate the water heater so that the venting length and number of elbows are kept

to the minimum distance necessary to reach the outside. If the installation requires

venting lengths that exceed the lengths listed for 2 in. (5.1 cm) vent pipe in Table 1, then

use 3 in. (7.6 cm) vent pipe for the vent connector or 4 in. (10.2 cm) as necessary.

Table 2 lists the venting distances allowed with 3 in. (7.6 cm) diameter vent pipe. When

venting with 3 in. (7.6 cm) vent pipe, use a 3 in. (7.6 cm) to 2 in. (5.1 cm) reducer to exit

through the building wall with 2 in. (5.1 cm) vent pipe. Use the 2 in. (5.1 cm) vent

terminal supplied with the water heater to terminate on the outside of the building. If the

length of 2 in. (5.1 cm) vent pipe needed to go through the wall is greater than 14 in.

(35.5 cm), use 3 in. (7.6 cm) to go through the wall and reduce to 2 in. (5.1 cm) vent pipe

immediately after exiting the outside wall. Refer to the venting illustrations on the

following pages. Make sure the vent pipe terminal elbow fitting is at least 1 in. (2.5 cm)

away from the edge of the wall.

Table 3 lists the venting distances allowed with 4 in. (10.2 cm) diameter vent pipe.

When venting with 4 in. (10.2 cm) vent pipe, use a 4 in. (10.2 cm) to 2 in. (5.1 cm)

reducer to exit through the building wall with 2 in. (5.1 cm) vent pipe. Use the 2 in. (5.1

cm) vent terminal supplied with the water heater to terminate on the outside of the

building. If the length of 2 in. (5.1 cm) vent pipe needed to go through the wall is greater

than 14 in. (35.5 cm), use 4 in. (10.2 cm) to go through the wall and reduce to 2 in. (5.1

cm) vent pipe immediately after exiting the outside wall. Refer to the venting illustrations

on the following pages. Make sure the vent pipe terminal elbow fitting is at least 1 in.

(2.5 cm) away from the edge of the wall.

Venting continued-

TABLE 1 – VENT CONNECTOR LENGTHS

FOR 2” (5.1 cm) DIAMETER VENT PIPE

Terminating

# of 90° Elbows

(excl. vent term)

Maximum straight

Length ft (m)

Min. straight

Length ft (m)

Through the Wall

45 (13.7)

2 (.6)

Through the Wall

40 (12.2)

2 (.6)

Through the Wall

35 (10.7)

2 (.6)

Through the Wall

30 (9.1)

2 (.6)

Through the Roof

50 (15.2)

7 (2.1)

Through the Roof

45 (13.7)

7 (2.1)

Through the Roof

40 (12.2)

7 (2.1)

Through the Roof

35 (10.7)

7 (2.1)

Through the Roof

30 (9.1)

7 (2.1)

TABLE 2 -VENT CONNECTOR LENGTHS

FOR 3” (7.6 cm) DIAMETER VENT PIPE

Terminating

# of 90° Elbows

(excl. vent term)

Maximum straight

Length ft (m)

Min. straight

Length ft (m)

Through the Wall

115 (35.0)

10 (3.1)

Through the Wall

110 (33.5)

10 (3.1)

Through the Wall

105 (32.0)

10 (3.1)

Through the Wall

100 (30.5)

10 (3.1)

Through the Wall

95 (29.0)

10 (3.1)

Through the Roof

120 (36.6)

15 (4.6)

Through the Roof

115 (35.0)

15 (4.6)

Through the Roof

110 (33.5)

15 (4.6)

Through the Roof

105 (32.0)

15 (4.6)

Through the Roof

100 (30.5)

15 (4.6)

TABLE 3 -VENT CONNECTOR LENGTHS

FOR 4” (10.2 cm) DIAMETER VENT PIPE

Terminating

# of 90° Elbows

(excl. vent term)

Maximum straight

Length ft (m)

Min. straight

Length ft (m)

Through the Wall

175 (53.3)

10 (3.1)

Through the Wall

170 (51.8)

10 (3.1)

Through the Wall

165 (50.3)

10 (3.1)

Through the Wall

160 (48.8)

10 (3.1)

Through the Wall

155 (47.2)

10 (3.1)

Through the Roof

180 (54.9)

15 (4.6)

Through the Roof

175 (53.3)

15 (4.6)

Through the Roof

170 (51.8)

15 (4.6)

Through the Roof

165 (50.3)

15 (4.6)

Through the Roof

160 (48.8)

15 (4.6)

NOTE: When using 3” (7.6 cm) or 4” (10.2 cm) vent pipe, use a reducer to 2” (5.1 cm)

and exit the building wall with 2” (5.1 cm) vent pipe using the 2” (5.1 cm) 45 vent

terminal supplied. Two 45 elbows are equivalent to one 90 elbow. Each 90° elbow is

equivalent to 5 feet (1.5 m) of straight vent pipe.

Venting continued-

Connection to 2 in. (5.1 cm) Connection to a 2 in. (5.1 cm) to

vent pipe 3 in. (7.6 cm) reducer or 4 in.

(10.2 cm) reducer vent pipe

Figure 2 – Vent Connections

NOTE: When connection is made to a 3 in. (7.6 cm) or a 4 in. (10.2 cm) vent pipe,

the reducer must be applied to the 2 in. (5.1 cm) pipe attached to the blower

exhaust as shown.

NOTICE

The air intake and exhaust terminals may be located on separate outside

walls or one terminal may exit the roof while the other is through the wall.

The total combined equivalent vent length must be within the limits specified

in the venting tables and the intake length cannot exceed the exhaust by

more than 30 ft. (9.2 m).

IMPORTANT

All venting connections must be leak checked with a soap and

water solution upon initial startup of the water heater. Any leaks

must be repaired before continuing operation of the water heater.

Venting continued-

Power Direct Vent

Through The Wall Venting (Horizontal Venting With Standard Vent

Terminals):

Cut two 2 1/2 in. (6.4 cm) diameter holes in the wall at the point where the vent

connector is going to pass through the wall. Use the proper cement to secure

the 45° vent terminal provided with the water heater to the vent connector. The

distance between the edges of the 45° vent terminal and the exterior wall must

be 1 in. (2.5 cm) (see Figure 3). The exhaust and intake must not be less than

16 in. (40.6 cm) apart, and the exhaust terminal must be a minimum of 2 in.

(5.1 cm) higher than the intake terminal (see Figure 4a). 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 5 ft. (1.5 m)

of horizontal vent.

2” VENT INSTALLATION

3” VENT INSTALLATION

Figure 3 – Vent Installations

Venting continued-

Vent Terminal Configurations For Through The Wall Venting:

When venting through the wall, the exhaust terminal must exit the structure at a

minimum distance of 16 in. (40.6 cm) from the intake terminal. The exhaust terminal

must not be located below the intake terminal for any reason (see Figure 4a below for

examples of acceptable vent terminal configurations).

Figure 4a

When local conditions present a risk of ice accumulation on the vent terminals, the

configurations in Figures 4b and 4c or the concentric termination are preferred.

The air intake screen can be removed for cold installations but this may make the air

intake susceptible to debris buildup from birds or other animals. If the air intake

screen is removed to prevent freezing, then it is recommended that the air inlet screen

be installed during the spring.

Figure 4b

CAUTION

NEVER INSTALL AIR INTAKE ABOVE EXHAUST

Venting continued-

Figure 4c

IMPORTANT

When using the vent terminal configuration shown in Figure 4c the

extra elbows must be accounted for in the total vent length see Table 4

or Table 5.

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Bradford White LC2PDV50H763N User manual

Bradford White LC2PDV50H763N User manual

Bradford White LC2PDV50H763N User manual

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