Bradford White RG1PV50S6X19-264 User manual

238-53846-00A REV 12/19
POWER VENT GAS WATER HEATER
A Spanish language version of these instructions is available by
contacting the company listed on the rating plate.
La version espanola de estas instrucciones se puede obtener al escribirle
a la fabrica cuyo nombre aparece en la placa de especificaciones.
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.
For your family’s comfort, safety and convenience we recommend this
water heater be installed and serviced by a plumbing professional.
INSTALLATION AND OPERATION
INSTRUCTION MANUAL
WARNING: If the information in these instructions is not
followed exactly, a fire or explosion may result causing
property damage, personal injury, or death.
FOR YOUR SAFETY
DO NOT store or use gasoline or other flammable,
combustible, or corrosive vapors and liquids in the
vicinity of this or any other appliance.

2
CONGRATULATIONS!
You have purchased one of the finest water heaters on the market
today!
This installation, operation and instruction manual will explain in
detail the installation and maintenance of your new Power Vented
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.
Special Flammable Vapor Ignition Resistant System
This water heater is equipped with a Flammable Vapor Ignition Resistant
System. In the event of improper usage or storage of gasoline or other
flammable materials in the location where the water heater is installed, the
technology will resist ignition of the flammable vapors outside the confines of
the water heater.
The Flammable Vapor Ignition Resistant System features:
 Advanced Flame Arrestor Design;
 Flammable Vapor Sensor;
 Automatic Ignition Device;
 Sight Window to observe operation of pilot and burner.
FOR YOUR SAFETY: Activation of the Flammable Vapor Ignition Resistant
System occurs when flammable vapors are drawn into the water heater and are
combusted. If flammable vapors are detected and/or sensed:
 Do not try to light any appliance.
 Do not touch any electrical switch; Do not use any phone in your
building.
 Leave the premises and immediately call the fire department from a
neighbor’s phone. Follow the fire department’s instructions.
Once the flammable vapor has been evacuated, contact your plumbing
professional or the manufacturer for further instructions. Replacement of a
Flammable Vapor Ignition Resistant System equipped water heater due to a
flammable vapor shutdown is not covered under the terms of the limited
warranty.

3
TABLE OF CONTENTS
Page
GENERAL INFORMATION ................................................................ 4
INSTALLATION. ................................................................................ 5
Locating The Water Heater ........................................................ 5
Minimum Clearances .................................................................. 8
Venting ........................................................................................ 8
Specifications for 40 Gal (151.4 L) / 50 Gal (189.2 L) / 60 Gal
(227.0 L) ....................................................................................... 12
Vent Pipe Preparation and Joining ........................................... 16
Combustion Air Supply .............................................................. 18
Water Connections ..................................................................... 20
Gas Connections ........................................................................ 23
Electrical Connections ............................................................... 24
Wiring Diagram ........................................................................... 25
GENERAL OPERATION .................................................................... 26
Lighting & Shutdown Instructions ............................................ 27
Thermostat Adjustment ............................................................. 28
Burner Flame Check ................................................................... 29
MAINTENANCE ................................................................................. 29
TROUBLESHOOTING ....................................................................... 34
PARTS DIAGRAM ............................................................................. 37
INSTALLATION INSTRUCTIONS FOR POTABLE WATER AND
SPACE HEATING .............................................................................. 38
NOTES .............................................................................................. 39

4
GENERAL INFORMATION
This gas-fired water heater’s design is certified by CSA International under the
American National Standard Z21.10.1 and CSA 4.1-M, most current editions at
the time of manufacture. This is a category III 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
Operating 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 combination 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.
CAUTION
Incorrect operation of this appliance may create a hazard to life
and propert
y
and will nullif
y
the warrant
y
.
WARNING
Prior to connecting the gas supply line to a gas fired water heater, ensure
that the gas supply line does not have moisture/water or dirt/scale inside
the gas line. Commonly this check is done at the lowest point in the gas
distribution system prior to gas burning appliances.
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.

5
General Information continued-
Make sure that you check the rating plate and combination 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 combination gas control.
A sacrificial anode(s) is used to extend tank life. Removal of any anode, 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 anode and impurities in the water. If this should
happen, an alternative anode(s) 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.
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 and 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), or in Canada CAN/CGA B149.1 Natural Gas Installation Code
(Latest Edition) or CAN/CGA B149.2 Propane Installation Code (Latest
Edition).
C
A
UTION
This water heater must not be used as a source of construction
heat or durin
g
the construction phase of an
y
buildin
g
.
WARNING
This product contains one or more chemicals known to the State
of California to cause cancer, bi
r
th defects, or reproductive harm.
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-
A
IR INTAKE SYSTEM.

6
Installation (Locating The Water Heater) continued-
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 operating 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. 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, or
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
Liquefied petroleum gases/propane gases 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!

7
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 installation instruction manual before locating
the water heater.
This water heater must be located in an area where leakage of the tank 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. 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 the DSA Headquarters Office: 1102 Q Street, Suite 5100,
Sacramento CA 95811.
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.

8
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 (0 cm) from the sides and rear, 5 in (12.7 cm) from the front of
the jacket, 0 in (0 cm) from the vent connector and 15 in (38.1 cm) from the
jacket top. Increased distances provide greater clearances for servicing.
Venting
Figure 1 - Vent Terminal Clearances
WARNING
Failure to adhere to these installation and operating instructions
may create a hazard to life and property and will nullify the
warrant
y
.

9
Venting continued-
Canadian
Installations1
US
Installations2
A= Clearance above grade, veranda, porch, deck or
balcony
12 inches
(30 cm) 12 inches (30 cm)
B=
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
C= Clea
r
ance to permanently closed window
*b
*b
D=
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
*b *b
E= Clearance to unventilated soffit
*b *b
F=
Clearance to outside corner
*b *b
G= Clearance to inside corne
r
*b *b
H=
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
*b
I= Clearance to service regulator vent outlet or oil
tank vent
36 inches
(91 cm)
*b
J=
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.
K= Clearance to a mechanical air supply inlet
6 feet
(1.83 m)
3 feet (91 cm)
above if within
10 feet (3.1 m)
horizontally
L= Clearance above paved sidewalk or paved
driveway located on public property
7 feet
(2.13 m) † 7 feet (2.13 m) †
M=
Clearance under a veranda, porch, deck, or
balcony
12 inches
(30 cm) ‡ *b
1 In accordance with the current CAN/CGA-B149 Installation Codes.
2 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
5.21.1 of ANSI Z21.10.1, latest edition.
*b) “Clearance in accordance with local installation codes and the requirements of
the gas supplier”.

10
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” (25.4 cm) 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.
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.
WARNING
Risk of carbon monoxide poisoning or fire due to joint separation
or pipe breaka
g
e.
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. The acceptance of the venting
system is dependent upon full compliance with these installation
instructions.
Ventin
g
s
y
stem must NOT pass throu
g
h rated fire separations.
The venting system must be free to expand and contract. This venting
s
y
stem must be supported in accordance with these instructions.

11
Venting continued-
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
coverin
g
non-metallic ventin
g
with thermal insulation is prohibited.

12
Venting System Condensation
Condensate formation does not occur in all installations of power vented water
heaters but should be protected against on installations where condensation
can form in the venting system.
Formation of condensation in the venting system of power vented water heaters
is dependent upon installation conditions including, but not limited to:
 ambient temperature and humidity of installation location;
 ambient temperature and humidity of venting space;
 vent distance and slope;
 and product usage.
In order to effectively control condensate from adversely affecting the
mechanical components of the water heater several methods may be
employed:
1. For horizontal installations the vent pipe can be installed with a
downward slope (not less than 1/8" (3 cm)) and away from the blower.
2. In order to prevent condensate from draining back into the blower
(vertical or horizontal runs), an optional condensate kit is available as a
service part (Condensate kit, p/n 239-45875-00). A molded exhaust
adapter with drain outlet is secured with one hose clamp, to the vent
pipe. Tubing is provided to drain any accumulated condensate away
from the water heater and to a suitable drain. The kit comes complete
with instructions for proper installation.
Venting Specifications for 40 Gallon (151.4 L)/50 Gallon (189.2 L)/
60 Gallon (227.0 L):
This water heater is a power vented appliance and is designed to vent its
products of combustion through 2 in (5.1 cm) or 3 in (7.6 cm) diameter vent
pipe to the outdoors. The water heater may be either vented horizontally
through the wall or vertically through the roof. Use a 3 in (7.6 cm) to 2 in (5.1
cm) reducer to connect to the vent outlet when using 3 in (7.6 cm) vent pipe.
Apply proper cement at joint locations. Table 1 lists the maximum vent lengths
for this water heater using 2 in (5.1 cm) vent pipe. If possible, 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.
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 the 2 in (5.1 cm) needed to go
through the wall is greater than 14 in (35.6 cm), use 3 in (7.6 cm) vent pipe 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.
If replacing a water heater and the existing vent terminal is identical to the vent
terminal supplied with the new water heater, replacement of the vent terminal is
not required. The vent terminal should be inspected to make sure that it is in
good condition.

13
Venting continued-
Make sure the vent pipe terminal is at least 1 in (2.5 cm) away from the edge of
the wall.
TABLE 1
V
ENT CONNECTOR LENGTHS FOR 2” (5.1cm) DIAMETER
V
ENT PIPE
Terminating # of 90 Elbows
(excluding vent
terminal
)
Maximum
Straight Length
ft (m)
Minimum
Straight Length
ft (m)
Throu
g
h the Wall 1 45
(
13.7
)
2
(
.6
)
Throu
g
h the Wall 2 40
(
12.2
)
2
(
.6
)
Throu
g
h the Wall 3 35
(
10.7
)
2
(
.6
)
Throu
g
h the Wall 4 30
(
9.1
)
2
(
.6
)
Throu
g
h the Roof 0 50
(
15.2
)
7
(
2.1
)
Throu
g
h the Roof 1 45
(
13.7
)
7
(
2.1
)
Throu
g
h the Roof 2 40
(
12.2
)
7
(
2.1
)
Throu
g
h the Roof 3 35
(
10.7
)
7
(
2.1
)
Throu
g
h the Roof 4 30
(
9.2
)
7
(
2.1
)
NOTE: When using 3 in (7.6 cm) vent pipe, use a 3 in (7.6 cm) to 2 in (5.1
cm) reducer and exit the building wall with 2 in (5.1 cm) vent pipe using
the 2 in (5.1 cm) 90 vent terminal supplied. Two 45 elbows are equivalent
to one 90 elbow. Each 90° elbow is equivalent to 5 ft (1.5 m) of straight
vent pipe.
TABLE 2
V
ENT CONNECTOR LENGTHS FOR 3” (7.6 cm) DIAMETER VENT PIPE
Terminating # of 90 Elbows
(excluding vent
terminal)
Maximum
Straight
Length
ft (m)
Minimum
Straight Length
ft (m)
Throu
g
h the Wall 1 115
(3
5
)
10
(
3.1
)
Throu
g
h the Wall 2 110
(
33.5
)
10
(
3.1
)
Throu
g
h the Wall 3 105
(
32.0
)
10
(
3.1
)
Throu
g
h the Wall 4 100
(
30.5
)
10
(
3.1
)
Throu
g
h the Wall 5 95
(
29.0
)
10
(
3.1
)
Throu
g
h the Roof 0 120
(
36.6
)
15
(
4.6
)
Throu
g
h the Roof 1 115
(
35
)
15
(
4.6
)
Throu
g
h the Roof 2 110
(
33.5
)
15
(
4.6
)
Throu
g
h the Roof 3 105
(
32.0
)
15
(
4.6
)
Throu
g
h the Roof 4 100
(
30.5
)
15
(
4.6
)

14
CONNECTION TO 2” (5.1 CM)
VENT PIPE
CONNECTION TO 3” (7.6 CM)
VENT PIPE
Venting continued-
Figure 2
THROUGH THE WALL VENTING: (HORIZONTAL VENTING):
Cut a 2 1/2 in (6.4 cm) diameter hole in the wall at the point where the vent
connector is going to pass through the wall. Use the proper cement to secure
the 90° vent terminal provided with the water heater to the vent connector. The
distance between the edges of the 90° vent terminal and the exterior wall (see
Figure 3) must be at least 1 in (2.5 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 5 ft (1.5 m) of horizontal vent.
Figure 3
IMPORTANT
All of the venting connections must be leak checked with a soap and
water solution upon initial start-up of the water heater. Any leaks must
be repaired before continuing operation of the water heater.
3” VENT INSTALLATION
2” VENT INSTALLATION

15
Venting continued-
THROUGH THE ROOF VENTING: (VERTICAL VENTING):
Cut the necessary holes through the roof and ceiling and install the vent
connector as shown in Figure 4. 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 Codes (latest edition).
Figure 4
THROUGH THE WALL VENTING WITH LOW GROUND CLEARANCE:
When venting cannot exit through the wall at a height greater than or equal to
12 in (30.5 cm) from the ground or from the anticipated snow level, then the
installation must be modified as shown below (see Figure 5). Refer to Table 3
for maximum venting lengths using 2 in (5.1 cm) vent pipe or Table 4 for
maximum lengths using 3 in (7.6 cm) vent pipe.
Figure 5
2” VENT INSTALLATION
3” VENT INSTALLATION

16
Venting continued-
NOTE: For installations requiring both horizontal and vertical runs, the
following rule must be followed: Total length of straight pipe (both
horizontally and vertically) must NOT exceed the allowable length listed in
the Table 3 and 4 for total number of elbows used.
TABLE 3
2” (5.1 cm) VENT PIPE LENGTHS FROM INSIDE WALL FOR LOW
GROUND CLEARANCE INSTALLATIONS
Terminating # of
Elbows
Max straight
Length ft (m) Min straight Length ft (m)
(2) 90 Elbows with Vent Terminal 1 30 (9.1) 2 (.6)
(2) 90 Elbows with Vent Terminal 2 25 (7.6) 2 (.6)
(2) 90 Elbows with Vent Terminal 3 20 (6.1) 2 (.6)
(2) 90 Elbows with Vent Terminal 4 15 (4.6) 2 (.6)
TABLE 4
3” (7.6 cm) VENT CONNECTOR LENGTHS FROM INSIDE WALL FOR
LOW GROUND CLEARANCE INSTALLATIONS
Terminating (Reduce 3” to 2”)
(Reduce 7.6 cm to 5.1 cm)
#of
Elbows
Maximum
Length ft (m) Minimum Length ft (m)
(2) 90 Elbows with Vent Terminal 1 100 (30.5) 10 (3.1)
(2) 90 Elbows with Vent Terminal 2 95 (29.0) 10 (3.1)
(2) 90 Elbows with Vent Terminal 3 90 (27.4) 10 (3.1)
(2) 90 Elbows with Vent Terminal 4 85 (25.9) 10 (3.1)
(2) 90 Elbows with Vent Terminal 5 80 (24.4) 10 (3.1)
HIGH ALTITUDE INSTALLATIONS FOR ELEVATIONS OVER 2,500
FEET (762 m) ABOVE SEA LEVEL
The capacity of the induced draft blower declines with increasing altitude due to
a reduction in the air density. In order to assure safe and reliable performance
of the water heater, contact the supplier for high altitude kit.
Vent Pipe Preparation and Joining
Most failures in vent systems result from improper preparation and joining of
pipe and fittings. The guidelines below must be followed when installing the
venting system. If you have any question about the application or installation of
the venting system, contact the vent pipe manufacturer, supplier, or your
plumbing professional.
1) Specific cleaners, solvents, primers and cements are available for PVC,
CPVC, and ABS pipe. Be sure these materials match the type of pipe to be
installed. The vent pipe manufacturers joining instructions must be followed
in all cases. Never use all-purpose cements, commercial glues and
adhesives or ABS cement to join PVC or CPVC pipe and fittings. Refer to
the table at the beginning of the “Venting” section for approved primers and
cements.

17
Vent Pipe Preparation and Joining continued-
a) CLEANERS, SOLVENTS, PRIMERS AND CEMENTS ARE
FLAMMABLE. Do not store or use these materials near heat or
open flame, or in the vicinity of other appliances.
2) Use proper cutting, deburring and applicator tools to ensure proper
preparation and joining of pipe and fittings.
a) Cutting Tools
i) A square cut must be achieved with a miter box saw or pipe cutter
to ensure a proper mating with the female. If a pipe cutter is used,
the burr created at the outer edge of the pipe must be removed.
b) Deburring Tools
i) A file, knife or plastic deburring tool can be used to remove burrs.
Burrs must be removed from the inside and outside edges of the
pipe to ensure a proper seal.
c) Applicator Tools
i) A natural bristle paintbrush or roller may be used to apply cement.
Prompt application of the cement is important due its fast drying
properties.
3) Inspection, Cleaning, Priming and Cementing
a) Inspect the pipe inside and out for dirt, dust, moisture or grease etc.
Check pipe and fittings for splits or cracks and replace if found.
b) Clean pipe and fittings are imperative for proper joining. Following
cutting and deburring, wipe away any foreign material with a clean dry
rag. If wiping fails to thoroughly clean surfaces, chemical cleaning is
necessary.
c) Primer must be applied to the pipe surface and fitting socket with a
natural bristle brush. This serves to soften and prepare the pipe for
cementing.
d) Cementing must be done quickly to avoid over-drying before joining.
i) Apply one coat to the outside end of the pipe at a width slightly
greater than the depth of the socket.
ii) Apply a coat around the inside of the fitting socket.
iii) Apply a second coat around the end of the pipe.
4) Joining
a) Joints should be made immediately after cement is applied.
b) After fully inserting pipe into fitting socket, hold joint together for about
15 to 20 seconds.
c) Remove excess cement from around pipe and fitting with a clean rag.
d) Cement drying times may vary. Be sure to allow for the recommended
drying time before disturbing joints.
For more specific and detailed information about the above, contact the vent
pipe manufacturer, supplier, or competent professional.

18
Combustion Air Supply
Provide adequate air for combustion and ventilation. An insufficient supply of air
will cause recirculation of combustion products resulting in air contamination
that may be hazardous to life. Such a condition often will result in a yellow,
luminous burner flame, causing carbon build up or sooting of the combustion
chamber, burners, and flue tubes with possible damage to the water heater.
When an exhaust fan is installed in the same room with a water heater,
sufficient openings for air must be provided in the walls. Undersized openings
will cause air to be drawn into the room through the venting, causing
recirculation of combustion products.
Unconfined Spaces
In unconfined spaces in buildings, infiltration may be adequate to provide air for
combustion, ventilation, and dilution of flue gases. However, in buildings of tight
construction (heavily insulated, weather stripping, caulked, vapor barrier, etc.)
additional air may need to be provided using the methods described below.
Confined Spaces
Confined spaces are spaces defined as having less than 50 ft3/1,000 BTU/hr
(4.8 m3/kW) of input.
All Air from Inside the Building: The confined space must be provided with
two permanent openings communicating directly with an additional room(s) of
sufficient volume, so that the combined volume of all spaces meets the criteria
for an unconfined space. The total input of all gas utilization equipment installed
in the combined space must be considered in making this determination.
WARNING
Liquefied petroleum gases/propane gases 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 LEAKAGE IS CORRECTED!
IMPORTANT
The flow of combustion and ventilating air must not be obstructed.

19
Combustion Air Supply continued-
Each opening must have a minimum free area of 1 in2/1000 BTU/hr (2200
mm2/kW) of the total input rating of all gas utilization equipment in the confined
space, but not less than 100 in2(0.06 m2). One opening must be within 12 in
(31 cm) of the top and one within 12 in (31 cm) of the bottom of the enclosure.
All Air from Outdoors: Provide two permanent openings, one commencing
within 12 in (31 cm) of the top and one commencing within 12 in (31 cm) from
the bottom of the enclosure. The openings must communicate directly or by
ducts with the outdoors or spaces (crawl or attic) that freely communicate with
the outdoors.
1. When communicating with the outdoors through vertical ducts, each
opening must have a minimum free area of 1 in2/4000 BTU/hr (550
mm2/kW) of total input rating of all equipment in the enclosure.
2. When communicating with the outdoors through horizontal ducts, each
opening must have a minimum free area of 1 in2/2000 BTU/hr (1100
mm2/kW) of total input rating of all equipment in the enclosure.
3. When ducts are used, they must be of the same cross-sectional area as the
free area of the openings to which they connect. The minimum dimension
of rectangular air ducts cannot be less than 3 in (8 cm).
Provide one permanent opening, commencing within 12 in (31 cm) of the top of
the enclosure. The appliance must have clearance of at least 1 in (3 cm) from
the sides and back and 6 in (16 cm) from the front of the appliance. The
opening must communicate directly or by ducts with the outdoors or spaces
(crawl or attic) that freely communicate with the outdoors and has a minimum
free area of the following:
1. 1 in2/3000 BTU/hr (700 mm2/kW) of the total input rating of all appliances
located in the enclosure.
2. Not less than the sum of the areas of all vent connectors in the space.
Specially Engineered Installations
The requirements noted under CONFINED SPACES above will not necessarily
govern when special engineering, approved by the authority having jurisdiction,
provides an adequate supply of air for combustion, ventilation, and dilution of
flue gases.

20
Water Connections
NOTE: 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. After the pressure has been relieved,
close the faucet. The COLD water inlet and HOT water outlet are identified on
the top of the water heater. The fittings at the cold water inlet and hot water
outlet are dielectric waterway fittings with 3/4” NPT male thread. 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.
If this water heater is installed in a closed water supply system, such as 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. Your water
supplier or local plumbing inspector should be contacted on how to control this
situation.
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 leaks. NEVER OPERATE THE WATER HEATER WITHOUT FIRST
BEING CERTAIN IT IS FILLED WITH WATER.
CAUTION
If sweat fittings are to be used DO NOT apply heat to the nipples on top
of the water heater. Sweat the tubing to the adapter before fitting the
adapter to the water connections. It is imperative that heat is not applied
to the nipples containing a plastic liner.
WARNING
FAILURE TO INSTALL AND MAINTAIN A NEW, LISTED 3/4” X 3/4”
TEMPERATURE AND PRESSURE RELIEF VALVE WILL RELEASE
THE MANUFACTURER FROM ANY CLAIM THAT MIGHT RESULT
FROM EXCESSIVE TEMPERATURE AND PRESSURES.