Bradford White LC2PV50H763N Installation Manual

CONDENSING POWER 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.

INSTAL LATION AND O PERATION

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.

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.

238-50845-00F REV 5/18

2

CONGRATULATIONS!

You have just 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 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.

3

TABLE OF CONTENTS

page

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

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

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

Minimum Clearances ................................................................... 9

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

Vent Pipe Prepa r at ion and Joining ............................................ 20

Combustion Air Supply ............................................................... 22

Water Connections ....................................................................... 24

Condensate Drain Connection ................................................... 27

Gas Connections .......................................................................... 28

Electrical Connections ................................................................ 29

Wiring Diagram ....................................................................... 30

GENERAL OPERATION...................................................................... 31

Lighting and Shutdown Instructions ......................................... 32

Thermostat Adjustment ............................................................... 33

Burner Flame Check .................................................................... 34

MAINTENANCE ................................................................................... 35

TROUBLESHOOTING ......................................................................... 38

PARTS LIST AND DRAWING ............................................................. 41

INSTALLA TI O N INST RU CTI O NS FO R PO TABLE WATER AND

SPACE HEA TING ................................................................................ 42

NOTES ................................................................................................. 43

4

GENERAL INFORMATION

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 flammab le, combustible, or
appliance.

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.

corrosive vapors and liquids in the vicinity of this or any other

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.

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.

5

General Information continued-

DANGER

This product contains one or more chemical s known to the State
of California to cause cancer, birth defects, or reproductive harm.

Sacrificial anodes are used to extend tank life. Anode removal, except for
inspection and/or r eplacem ent, will nullif y the warrant y. In ar eas where water is
unusually active, an odor may occur at the hot water fauc et due to a reaction
between the sacrificial anodes and the impurities in the water. If this should
happen, alternative anodes may be purc hased from the supplier that installed
this water heater. This will minimize the odor while protecting the tank.
Additionally, the water hea ter should be flushed with appropr iate dissolvers to
eliminate any bacteria.

6

INSTALLATION

WARNING

Water heaters are heat producing appliances. To avoid damage or

WATER HEATER OR VENT-AIR INTAKE SYSTEM.

Locating the Water Heater

injury, do not store materials against the water heater or vent-air intake
system. Use proper care to avoid unnecessary contact (especially by
children) with the water heater and vent-air intake components. UNDER

NO CIRCUMSTANCES MUST FLAMMABLE MATERIALS, SUCH AS
GASOLINE OR PAINT THINNER BE USED OR STORED IN THE
VICINITY OF THIS WATER HEATER, VENT-AIR INTAKE SYSTEM
OR IN ANY LOCATION FROM WHICH FUMES COULD REACH THE

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 loca ted not less than 18 inches (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.

7

Installation (Locating the Water Heater) continued-

WARNING

Liquefied petroleum gases/propane gas are heavier than air

CORRECTED!

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.

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

8

Installation (Locating the Water Heater) continued-

WARNING

DO NOT A TTEMPT TO LIGHT ANY GAS APPLIANCE IF YOU ARE

professional, for more information.

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

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 adequ ate l y piped f or proper dr ai nag e
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 inch (1.9 cm) in
diameter and pitched for proper drainage.

It is recommended that a minimum clearance of 4 inches (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 m oving du ring an earthquake.
See instructions for correct installation procedures. Instructions may be
obtained from DSA Headquarters Office, 1102 Q Street, Sacramento, CA

95811.

9

Minimum Clearances

WARNING

Failure to adhere to these installation and operation instructions
warranty.

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

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 non­combustible 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 inches (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 inch from the sides and rear, 5 inches (12.7 cm) from the
front of the jacket, 0 inch from the vent connector and 15 inches (38.1 cm) from
the jacket top. Increase distances to provide clearance for servicing.

Venting

Figure 1 - Vent Terminal Clearances

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).

10

Venting continued-

Canadian

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

12 inches

4 feet (1.2 m) below or

opening

C=

Clearance to permanently closed
window

*b

*b

D=

Vertical clearance to ventilated soffit

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 corner

*b

*b

H=

Clearance to each side of center line
assembly

*b

*b

I=

Clearance to service regulator vent
outlet or oil tank vent

3 feet (.9 m)

*b

J=

Clearance to non-mechanical air

appliance

12 inches

4 feet (1.2m) below or to

opening.

K=

Clearance to a mechanical air supply

6 feet

3 feet (91 cm) above if

horizontally

L=

Clearance above paved sidewalk or
property

7 feet

7 feet

M=

Clearance under a veranda, porch,
deck, or balcony

12 inches
(30 cm) ‡

*b

Installations1

be opened

located above the terminal within a
horizontal distance of 2 feet (.6 m)

extended above meter/regulator

supply inlet to building or the
combustion air inlet to any other

inlet

paved driveway located on public

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 2.20.
*b) “Clearance in accordance with local installation codes and the requirements of the gas supplier”.

(30 cm)

(30 cm)

(1.83 m)

(2.13 m)†

to the side of opening;

12 inches (30 cm) above

side of opening;

12 inches (30 cm) above

within 10 feet

(2.13 m)†

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.

11

Venting continued-

Clearance to combustibles for all venting pipes and

terminals

For installations in Canada

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 breakage.

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

compliance with these installa tio n 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

limitations.

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

For installations in the US

0” minimum

Refer to vent pipe and terminal

manufacturer’s installation instructions

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

CAN/CGA B149.1 (L atest Edi tio n) 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

12

Venting continued-

For installations in the US

D2661)

For installations in CANADA

Approved Primers and Cements

For installations in the US

(ASTM D-2235)

For installations in CANADA

NOTICE

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

®

covering non-metallic venting with thermal insulation is prohibited.

Approved Venting Materials

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

only

• PVC and CPVC Primer

(ASTM-F656)

• PVC Cement (ASTM D-2564)

• CPVC Cement (ASTM F493)

• ABS Primer and Cement

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

• 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

• ULC S636 approved Primer
and Cement for flue gas
venting rated Class II, 65°C

13

Venting System Condensation

Condensate formation will occur in the venting of this condensing power 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.

1. 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
inch (.6 cm) per foot (.3 m). The vent system must be supported every
5 feet (1.5 m) of vertical run and every 3 feet (.9 m) of horizontal run of
vent pipe length.

This water heater is a condensing power vented appliance and is designed to
vent its products of combustion through 2” (5.1 cm), 3” (7.6 cm) or 4” (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” (5.1 cm) to
3” (7.6 cm) reducer to connect to the vent outlet when using 3” (7.6 cm) vent
pipe or 2” (5.1 cm) to 4” (10.2 cm) reducer to connect to the vent outlet when
using 4” (10.2 cm) vent pi p e. Apply the proper cement at the joint locations.

Table 1 lists the maximum vent lengths for this water heater using 2” (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” (5.1 cm) vent pipe in Table 1, then use 3” (7.6 cm) vent pipe for the
vent connector or 4” (10.2 cm) as necessary.

Table 2 lists the venting distances allowed with 3” (7.6 cm) diameter vent pipe.
When venting with 3” (7.6 cm) vent pipe, use a 3” (7.6 cm) to 2” (5.1 cm)
reducer to exit through the building wall with 2” (5.1 cm) vent pipe. Use the 2”
(5.1 cm) vent terminal supplied with the water heater to terminate on the
outside of the building. If the length of 2” (5.1 cm) vent pipe needed to go
through the wall is greater than 14” (35.5 cm), use 3” (7.6 cm) to go through the
wall and reduce to 2” (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” (2.5 cm) away from the edge of the
wall.

Table 3 lists the venting distances allowed with 4” (10.2 cm) diameter vent pipe.
When venting with 4” (10.2 cm) vent pipe, use a 4” (10.2 cm) to 2” (5.1 cm)
reducer to exit through the building wall with 2” (5.1 cm) vent pipe. Use the 2”
(5.1 cm) vent terminal supplied with the water heater to terminate on the
outside of the building. If the length of 2” (5.1 cm) vent pipe needed to go
through the wall is greater than 14” (35.5 cm), use 4” (10.2 cm) to go through
the wall and reduce to 2” (5.1 cm) vent pipe imm ediatel y after exit ing th e
outside wall. Refer to the venting illustrations on the following pages. Make
sure the vent pipe terminal elbow fitting is at least 1” (2.5 cm) away from the
edge of the wall.

14

Venting continued-

TABLE 1 - VENT CONNECTOR LENGTHS

FOR 2” (5.1 cm) DIAMETER VENT PIPE

Terminating

# of 90° Elbows

Maximum straight

Min. straight

Through the Wall

1

45 (13.7)

2 (.6)

Through the Wall

2

40 (12.2)

2 (.6)

Through the Wall

3

35 (10.7)

2 (.6)

Through the Wall

4

30 (9.1)

2 (.6)

Through the Roof

0

50 (15.2)

7 (2.1)

Through the Roof

1

45 (13.7)

7 (2.1)

Through the Roof

2

40 (12.2)

7 (2.1)

Through the Roof

3

35 (10.7)

7 (2.1)

Through the Roof

4

30 (9.1)

7 (2.1)

TABLE 2 -VENT CONNECTOR LENGTHS

FOR 3” (7.6 cm) DIAMETER VENT PIPE

Terminating

# of 90° Elbows

Maximum straight

Min. straight

Through the Wall

1

115 (35.0)

10 (3.1)

Through the Wall

2

110 (33.5)

10 (3.1)

Through the Wall

3

105 (32.0)

10 (3.1)

Through the Wall

4

100 (30.5)

10 (3.1)

Through the Wall

5

95 (29.0)

10 (3.1)

Through the Roof

0

120 (36.6)

15 (4.6)

Through the Roof

1

115 (35.0)

15 (4.6)

Through the Roof

2

110 (33.5)

15 (4.6)

Through the Roof

3

105 (32.0)

15 (4.6)

Through the Roof

4

100 (30.5)

15 (4.6)

TABLE 3 -VE NT CONNE CTOR LENGTHS
FOR 4” (10.2 cm) DIAMETER VEN T PIPE

Terminating

# of 90° Elbows

Maximum straight

Min. straight

Through the Wall

1

175 (53.3)

10 (3.1)

Through the Wall

2

170 (51.8)

10 (3.1)

Through the Wall

3

165 (50.3)

10 (3.1)

Through the Wall

4

160 (48.8)

10 (3.1)

Through the Wall

5

155 (47.2)

10 (3.1)

Through the Roof

0

180 (54.9)

15 (4.6)

Through the Roof

1

175 (53.3)

15 (4.6)

Through the Roof

2

170 (51.8)

15 (4.6)

Through the Roof

3

165 (50.3)

15 (4.6)

Through the Roof

4

160 (48.8)

15 (4.6)

(excl. vent term)

(excl. vent term)

Length ft (m)

Length ft (m)

Length ft (m)

Length ft (m)

(excl. vent term)

Length ft (m)

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
supplied. Two 45

° elbows are equivalent to one 90° elbow. Each 90° elbow is equivalent to

° vent terminal

5 feet (1.5 m) of straight vent pipe.

Length ft (m)

15

Venting continued-

Connection to 2” (5.1 cm) Connection to a 2” (5.1 cm) to
vent pipe 3” (7.6 cm) reducer

Figure 2

NOTE: When connection is made to a 4” (10.2 cm) vent pipe, the reducer must be
applied to the 2” (5.1 cm) pipe attached to the blower exhaust as shown.

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.

16

Venting continued-

3” or 4” vent installation

2” vent installation

THROUGH THE WALL VENTING: (HORIZONTAL VENTING)
Cut a 2 1/2 in. (8.9 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 connec tor . The
distance between the edges of the 90° vent terminal and the exterior wall (see
Figure 3) must be 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 feet (1.5 m) of horizontal
vent.

Figure 3

17

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 (Lates t Ed ition) or
CGA/CAN B149 Installation Code (Latest Ed it ion).

Figure 4

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
TABLE 4, TABLE 5 or TABLE 6 for the total number of elbows used.

THROUGH THE WALL VENTING WITH LOW GROUND CLEARANCE:

When venting cannot exit through the wall at a height greater than or equal to
12 inches (30.5 cm) above the ground, or anticipated snow level, the
installation must be modified as shown below (see Figure 5). Refer to Table 4
for maximum venting lengths using 2” (5.1 cm) vent pipe, Table 5 for maximum
lengths using 3” (7.6 cm) vent pipe or Table 6 for maximum lengths using 4”
(10.2 cm) vent pipe.

18

Venting continued-

2” vent installation

3” or 4” vent installation

Figure 5

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 4, TABLE 5 or T ABLE 6 for total number of elbows used.

19

Venting continued-

TABLE 4

2” (5.1 cm) VENT CONNECTOR LENGTHS FROM INSIDE WALL FOR

LOW GROUND CLEARANCE INSTALLATIONS

Terminating

# of

Max Straight

Min

(2) 90° Elbows with Vent Terminal

1

30 (9.1)

5 (1.5)

(2) 90° Elbows with Vent Terminal

2

25 (7.6)

5 (1.5)

(2) 90° Elbows with Vent Terminal

3

20 (6.1)

5 (1.5)

(2) 90° Elbows with Vent Terminal

4

15 (4.6)

5 (1.5)

TABLE 5

3” (7.6 cm) VENT CONNECTOR LENGTHS FROM INSIDE WALL FOR

LOW GROUND CLEARANCE INSTALLATIONS

Terminating (Reduce 3” to 2”)

# of

Max straight

Min

(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)

TABLE 6

4” (10.2 cm) VENT CONNECTOR LENGTHS FROM INSIDE WALL FOR

LOW GROUND CLEARANCE INSTALLATIONS

Terminating (Reduce 4” to 2”)

# of

Max straight

Min

(2) 90° Elbows with Vent Terminal

1

160 (48.8)

10 (3.1)

(2) 90° Elbows with Vent Terminal

2

155 (47.2)

10 (3.1)

(2) 90° Elbows with Vent Terminal

3

150 (45.7)

10 (3.1)

(2) 90° Elbows with Vent Terminal

4

145 (44.2)

10 (3.1)

(2) 90° Elbows with Vent Terminal

5

140 (42.7)

10 (3.1)

(Reduce 7.6 cm to 5.1 cm)

Elbows

(excl. vent

term.)

Elbows

(excl. vent

term.)

Length ft (m)

Length ft (m)

straight

Length

ft (m)

straight

Length

ft (m)

(Reduce 10.2 cm to 5.1 cm)

Elbows

(excl. vent

Length ft (m)

straight

term.)

HIGH ALTITUDE INSTALLATIONS FOR ELEVATIONS OVER 2,000 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 a high altitude kit.

Length

ft (m)

20

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.
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 ap p liances.

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.

21

Vent Pipe Preparation and Joining continued-

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.

22

Combustion Air Supply

WARNING

Liquefied petroleum gas/propane gas is heavier than air and will remain at

DO NOT OPERATE APPLIANCE UNTIL LEAKAGE IS CORRECTED!

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.

IMPORTANT

The flow of combustion and ventilating air must not be obstructed.

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 (for example, weather stripping, heavily insulated, caulked,
vapor barrier, etc.), additional air may need to be provided using the methods
described under CONFINED SPACES: All Air from Outdoors or Specially
Engineered Installations .

Confined Spaces

Confined spaces are spaces defined as having less than 50 ft.

3

/0.29 kw-hr).

m

3

/1000 BTU (1.4

23

Installation (Combustion Air Supply) continued-
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. Each opening must have a minimum free area of 1 inch² (6.5

2

) per 1000 BTU (0.29 kw) per hour of the total input rating of all gas

cm
utilization equipment in the confined space, but not less than 100 inches² (645

2

). One opening must be within 12 inches (31 cm) of the top and one within

cm
12 inches (31 cm) of the bottom of the enclosure.

All Air From Outdoors: The confined space must be provided with two
permanent openings, one commencing within 12 inches (31 cm) of the top and
one commencing within 12 inches (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 directly communicating with the outdoors, each opening must have a

2

minimum free area of 1 inch² (6.5 cm

) per 4000 BTU (1.2 kw) per hour of

total input rating of all equipment in the enclosure.

2. When communicating with the outdoors through vertical ducts, each

2

opening must have a minimum free area of 1 inch² (6.5 cm

) per 4000 BTU

(1.2 kw) per hour of total input rating of all equipment in the enclosure.

3. When communicating with the outdoors through horizontal ducts, each

2

opening must have a minimum free area of 1 inch² (6.5 cm

) per 2000 BTU

(0.6 kw) per hour of total input rating of all equipment in the enclosure.

4. 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 must be not less than 3 inches (7.5 cm).

Specially Engineered Installations
The requirements noted in the Confined Spaces section addressed previously
does 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.

24

Water Connections

CAUTION

If sweat fittings are to be used DO NOT apply heat to the nipples on top

to the nipples containing a plastic liner.

WARNING

FAILURE TO INSTALL AND MAINTAIN A NEW, LISTED ¾” X ¾”

FROM EXCESSIVE TEMPERATURE AND PRESSURES.

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 ¾” NPT male thread. Make the
proper plumbing connectio ns bet ween the water hea t er and the plumbing
system to the house. Install a shut-off valve in the cold water supply line.

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

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.

TEMPERATURE AND PR ESSURE RELIEF V ALVE WILL RELEASE
THE MANUFACTURER FROM ANY CLAIM THAT MIGHT RESULT

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.

25

Water Connections continued-

WARNING

For protection against excessive temperatures and pressure, install

relief valve and the tank.

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, ANS Z21.22 or the
Standard CAN1-4.4. Tem p erat ure and Pr ess ur e 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 must also have an hourly rated
temperature steam BTU discharge capacity not 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 a
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 6 inches (15.2 cm)
above or any distance below the structural floor and cannot contact any
live electrical part. The discharge li ne 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 4 inches
(10.2 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

26

Water Connections continued-

APPROXIMATE TIME/TEMPERATURE RELATIONSHIPS IN SCALDS

120°F (49°C)

More than 5 minutes

125°F (52°C)

1½ to 2 minutes

130°F (54°C)

About 30 seconds

135°F (57°C)

About 10 seconds

140°F (60°C)

Less than 5 seconds

145°F (63°C)

Less than 3 seconds

150°F (66°C)

About 1½ seconds

155°F (68°C)

About 1 second

WARNING

Hydrogen gas can be produced in an operating water heater that has not

flame near the faucet at the time it is open.

(52°C) can cause severe burns

are at highest risk of being

Children, disabled and elderly

instantly or death from scalds.

Water temperature over 125°F

Feel water before bathing or

before setting temperature

available.

showering.
Temperature limiting valves are

Review this instruction manual
at water heater.

scalded.

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

This water heater can deliver scalding temperatur e water at any faucet in the
system. Be careful whenever us ing hot water t o avoid s calding injur y. Certain
appliances such as dishwashers and automatic clothes washers may require
increased temperatur e water . B y setting the therm ostat on t his water heater to
obtain the increase d temperature water required b y these applianc es, you m ay
create the potential f or sc ald injury. To protect ag ainst inj ury, you sh ould ins tall
an ASSE approved m ixing valve in the water s ystem. This valve will reduce
point of discharge t emperature by mixing cold and hot water in branch supply
lines. Such valves are av ai lable f r om the manufacturer of this water heat er or a

plumbing supplier. Please consult with a plumbing professional.

local

27

Condensate Drain Connection: This is a condensing water heater and

CAUTION

The condensate drain pipe must NOT be routed through an area subject to

REQUIRED TO PUMP THE CONDENSATE TO THE CLOSEST DRAIN.

requires a drain to allow the condensate to discharge safely. If a drain is not in
close proximity, a condensate pump may be required to pump the condensate
to the closest drain. A self-priming trap is integrated in the
condensate/pressure tube, allowing the connection to the ½” (1.3 cm) port to
run directly to the drain without an external trap connected. The preferred
connection to the condensate port is with plastic pipe and fittings. Tubing is an
acceptable alternative to plastic pipe. If tubing is applied, ensure it is properly
secured. Ensure that no part is elevated above the drain port. Make sure that
the condensate trap and components comply with local codes. Verify all
condensate tubing is properly connected from the blower for proper drainage.
Do not use copper tubing, iron, or steel pipe for the condensate drain line.
Verify that the condensate drain line slopes down, away from the water heater
at least ⅛“ (.3 cm) per foot (.3 m) toward the drain. Upon initial startup, a
gurgling sound may come from the condensate drain while the trap is being
primed. This gurgle will cease once the trap is primed.

Figure 6

IMPORTANT

Condensate from this water heater is mildly acidic. Please note that
some local codes require that condensate is treated by using a pH
neutralizing filter prior to disposal.

below freezing temperatures. Ensure that the condensate can drain freely and
free of debris to allow proper operation. Do not install any portion of the
condensate trap above the condensate port on the water heater. Blockage of
the condensate will make the water heater inoperable. Verify all tubing for
condensate is properly connected from the blower for proper drainage.

IF A DRAIN IS NOT IN CLOSE PROXIMITY, A CONDENSATE PUMP MAY BE

28

Gas Connections

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.

prior to gas burning appliances.

WARNING

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.

Commonly this check is done at the lowest point in the gas distri buti on sy ste m

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).

The minimum permissible gas supply pressure for the purpose of input adjustment
is 1 inch (0.25 kPa) water column above the operating manifold pressure. See the
rating plate and gas valve for the manifold pressure and gas type. The maximum
permissible gas supply pressure is 14 inches (3.5 kPa) water column for natural gas
and liquefied petroleum gases/propane gas.

1. Connect this water heater only to the type of gas (Natural or Propane 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
a minimum length of 3 inches (7.6 cm) drip leg (sediment trap) installed as
close to the water heater’s gas valve as possible. A ground joint union must be
installed as close to the water heater as possible in the gas supply line feeding
the water heater 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 gases/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. Avoid excessive torque when tightening the gas supply line to the
gas valve. Excessive torque may result in cracking of the gas valve housing
and could create a gas leak. The suggested maximum torque is 31.5 ft. lbs.
(4.4 kg-m).

2. 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!

29

Gas Connections continued-

CAUTION

The water heater and individual shutoff valve must be disconnected from the gas

heater.

CAUTION

Turn off or disconnect the electrical power supply to the water heater

Verify proper operation after servicing.

supply piping system during any pressure testing of the system at test pressures
in excess of 1/2 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 1/2 psi
(3.5 kPa). The supply line must be capped when not connected to the water

3. While checking for leaks care must be taken to prevent solution from
contacting the electric al connections at t he control. If elec trical connec tions
at the control becom e wet, t he y must be thor oughl y dried bef ore att em pting
to operate the water heater.

Electrical Connections

All electrical wiring and connections must be in accordance with the National
Electric Code ANSI/NFPA No. 70 (Latest Edition), or the Canadian Electrical
Code C22.1 (Latest Edition) and any local codes which may apply. The water
heater must be electrically grounded.

If a flexible line cord and plug is permitted by local code, then provide a 3-wire
grounding type receptacle within 6 feet (1.9 m) of the water heater and use the
flexible cord provided. Do not plug the line cord into a receptacle that can have
its power supply interrupted by a switch that is used to turn on and off lights.

If wiring in conduit is required, cut the flexible line cord flush with the bushing.
Remove the junction box cover and cut the three wires from the line cord at the
bushing inside of the junction box. Drill a hole to receive the 1/2 inch (1.3 cm)
electrical conduit connector on the backside of the blower. Wire the power
supply into the circuit at the appropriate locations. Replace the junction box
cover.

before servicing. Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and dangerous operation.

30

Wiring Diagram

Figure 7

31

GENERAL OPERATION

WARNING

Water heaters are heat producing appliances. To avoid damage or injury

SYSTEM.

there must be no materials stored against the water heater or vent-air
intake system, and proper care must be taken to avoid unnecessary
contact (especially by children) with the water heater a nd vent-air intake
system. UNDER NO CIRCUMSTANCES MUST FLAMMABLE

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

TO FILL THE WATER HEATER

1. Close the wat er heat er drai n val ve by turn ing the stem clockwise. Note that
the drain valve is fully closed with a ¼ turn.

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 press ur e reli ef valve and the hot and
cold water connections.

TO DRAIN THE WATER HEATER
Should it become necessary to completely drain the water heater, make sure
you follow the steps below:

1. Shut off the gas supply to the water heater.

2. Turn off/disconnect all electric power to the water heater.

3. Close the cold water supply shut-off valve.

4. Open the drain valve on the water heater by turning the stem counter­clockwise. Note that the drain valve is full open with a ¼ turn. The drain
valve has threads on the end that will allow the connection of a standard
hose coupling.

5. Open a hot water faucet to allow air to enter the system.

To refill the water heater, refer to “TO FILL THE WATER HEATER” from above.

32

Lighting and Shutdown Instructions

Figure 8

33

Thermostat Adjustment

DANGER

Hotter water increases the risk of scald injury. Scalding may occur

supply to the water heater and contact a qualified service technician.

The thermostat dial is adjusted to its lowest setting when shipped from the
factory. When adjusting the thermostat, it should be remembered that lower
temperature settings are more energy efficient. To adjust the thermostat turn
the dial clockwise until the minimum acceptable temperature is set. It is
suggested that the starting point setting not exceed the 120°F (49°C) or “HOT”
setting on the thermostat.

Figure 9

within 5 seconds at a temperature setting of 140°F (60°C). To protect
against hot water injury, install an ASSE approved mixing valve in the
water system. This valve will reduce point of discharge water
temperatures by mixing cold and hot water in branch water lines. A
licensed plumbing professional or local plumbing authority should be
consulted.

Note: This water heater is equipped with an energy cut out device to
prevent overheating. Should overheating occur, turn off the electrical

34

Burner Flame Check

WARNING

Do not run out of propane gas. Damage to the water heater may occur.

Steel Burner: These models are equipped with self-adjusting air mixture and
do not have an adjustable air shutter (See Figure 10). At periodic intervals a
visual check of the main burner and pilot flames should be made to determine if
they are burning properly. The main burner flame should light smoothly from
the pilot.

Figure 10

35

MAINTENANCE

WARNING

Water heaters are heat producing appliances. To avoid damage or injury

SYSTEM.

there must be no materials stored against the water heater or vent-air
intake system, and proper care must be taken to avoid unnecessary
contact (especially by children) with the water heater and vent-air intake
system. UNDER NO CIRCUMSTANCES MUST FLAMMABLE

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

IMPORTANT

The water heater should be inspected at a minimum annually by a
qualified service technician for damaged components and/or joints
not sealed. DO NOT operate this water heater if any part is found
damaged or if any joint is found not sealed.

The following maintenance should be performed by a qualified service
technician at the minimum periodic intervals suggested below. In some
installations, the maintenance interval may be more frequent depending on the
amount of use and the operating conditions of the water heater. Regular
inspection and maintenance of the water heater and vent-air intake system will
help to insure safe and reliable operation.

1. Annually check the operation of the thermostat.

2. The flow of combustion and ventilation air MUST NOT be restricted. Clear
the combustion air openings of any dirt, dust, or other restrictions.
WARNING! The ventilation air system ma y be HOT.

3. At all times keep the water heater area clear and free from combustible
materials, gasoline and other flammable vapors and liquids.

4. Bi-annually conduct a visual check of the main and pilot burner flames to
determine that they are burning properly. See the Burner Flame Check
section for illustration. If sooting or other burner anomalies are evident,
shut down the water heater by turning off the gas per the instructions listed
in this manual or as listed on the water heater.

36

Maintenance continued-

WARNING

When lifting lever of the combination temperature and pressure

damage.

WARNING

DO NOT ALLOW THE WATER HEATER TO RUN OUT OF PROPANE.

WARNING

THIS WATER MAY BE HOT.

5. Annually remove the inner door and main burner assembly to clean orifices
and related parts of any dirt or other foreign material. Inspect the burner
ports for obstructions or debris and clean with a wire brush as needed.
Wire brush and/or vacuum clean the combustion chamber as needed to
remove scale deposits and debris. NOTE: It is imperative for proper
operation of the water heater that the inner door be replaced in the original
location.

relief valve, hot water will be released under pressure. Be careful
that any released water does not result in bodi ly injury or property

6. At least once a year, check the combination temperature and pressure
relief valve to insure that the valve has not become encrusted with lime.
Lift the lever at the top of the valve several times until the valve seats
properly without leaking and operates freely.

7. Monthly drain off a gallon of water to remove silt and sediment.

8. If the combination temperature and pressure relief valve on the appliance
discharges periodically, this may be due to thermal expansion in a closed
water supply system. Contact the water supplier or local plumbing
inspector on how to correct this situation. Do not plug the combination
temperature and pressure relief valve outlet.

9. Combination sacrificial anode rods have been installed to extend tank life.
These anode rods should be inspected periodically (every 2 years) and
replaced when necessary to prolong tank life. Water conditions in your
area will influence the time interval for inspection and replacement of an
anode rod. Contact the plumbing professional who installed the water
heater or the manufacturer listed on the rating plate for anode replacement
information. The use of a water softener may increase the speed of anode
consumption. More frequent inspection of the anodes are needed when
using softened (or phosphate treated) water.

10. The blower has sealed motor bearings and does not require adding oil.

37

Maintenance continued-

CAUTION

FOR YOUR SAFET Y, DO NOT ATTEMPT REPAIR OF GAS CONTROL,
SERVICE TECHNICIAN.

BURNERS OR GAS PIPING. REFER REPAIRS TO A QUALIFIED

Contact your supplier or plumbing professional for replacement parts or contact
the company at the address given on the rating plate of the water heater.

Provide the part name, model and serial numbers of the water heater when
ordering parts.

READ THE WARRANTY FOR A FULL EXPLANATION OF T HE LENGTH OF
TIME THAT PARTS AND THE WATER HEATER ARE WARRANTED.

Manufactured under one or more of the following U.S. Patents: 5,277,171;
5,341,770; 5,372,185; 5,485,879; 5,574,822; 5,596,952; 5,660,165; 5,682,666;
5,761,379; 5,943,984; 5,954,492; 5,988,117; 6,056,542; 6,142,216; 6,442,178;
6,684,821; 6,935,280; 7,063,132; 7,063,133; 7,007,748; 7,270,087; 7,334,419;
7,337,517; 7,409,925; 7,458,341; 7,559,293; 7,621,238; 7,634,976; 7,650,859;
7,665,210; 7,665,211; 7,699,026; 7,866,168; 7,900,589; 7,971,560; 7,992,526
8,082,888; 8,146,772 Other U.S. and Foreign patent applications pending. Current
Canadian Patents: 2,092,105; 2,107,012; 2,108,186; 2,112,515; 2,143,031;
2,239,007; 2,262,174; 2,314,845; 2,409,271; 2,476,685; 2,504,824; 2,548,958

Complete the following information and retain for future reference:
Model No: _________________________________________________
Serial No: __________________________________________________
Service Phone

Days: __________________ Nights: ____________________________
Address: __________________________________________________
Supplier: __________________________________________________
Supplier Phone No: __________________________________________

38

Troubleshooting

LED Status

Control Status

Probable Cause

None (LED not on or

Electrical power not

Control power switch in “OFF” position. Supply

Stand-by mode,

Alternates bright and

Thermostat calling

1. Unstable pilot.

Short flash once

Idle remote

1. Control put in idle or Sabbath mode from

Pressure switch not

1. Pressure switch tubing kinked or blocked.

1. Vent blockage or improper vent configuration.

Excessive tank

1. Excessive sediment.

Five flashes, three

False pilot flame

1. Unstable pilot.

flashing)

One short flash every

four seconds

dim (Heartbeat)

Short flash once

every second

every two seconds

Two flashes, three

second pause

Three flashes, three

second pause

present.

Thermostat is

satisfied (no faults).

for heat (no fault).

Weak pilot signal on

last call for heat.

command off

working-closed

position.

Pressure switch or

blower temperature

switch not working -

open position.

voltage interrupted.

Temperature demand is satisfied (no call for heat).

Tank temperature below set point of thermostat.

2. Pilot tube block or restricted.

3. Oxidation build up on pilot electrode.

4. Wire damage to pilot assembly or bad connection

at gas valve.

5. Low gas pressure.

accessory module.

2. Blocked pressure tap on switch.

3. Faulty pressure switch.

2. Pressure switch tubing kinked or blocked.

3. Blower not spinning up to speed.

4. Vent temperature too high.

5. Blocked condensate drain.

6. Faulty pressure switch or vent limit switch.

Four flashes, three

second pause

second pause

Six flashes-one flash,

three second pause

(Soft lockout)

temperature.

System must be

reset.

present.

Failed to light pilot.

System auto resets

after 5 minutes.

2. Hot water entering the tank from another

source in the potable loop.

3. Faulty gas valve.

1. Pilot valve stuck in open position.

2. Pilot tube blocked or restricted.

3. Oxidation build up on pilot electrode.

4. Wire damage to pilot assembly or bad connection

5. Low gas pressure.

at gas valve.

39

Troubleshooting continued-

LED Status

Control Status

Probable Cause

1. Pressure switch tubing kinked or blocked.

1. Unstable pilot.

Six flashes-four flashes,

Undesired-false pilot

1. Flammable vapor present.

Flammable vapor

1. Damage to sensor or wire in control’s well.

Eight flashes-three

1. Verify control is not wet or physically damaged.

1. Verify control is not wet or physically damaged.

Six flashes-two flashes,

three second pause

(Soft lockout)

Six flashes-three flashes,

three second pause (Soft

lockout)

three second pause (Soft

lockout)

Seven flashes, three

second pause

Pressure switch or

blower temperature

switch opened

during burner

operation.

System auto resets

after 5 minutes.

Pilot flame

extinguished.

System resets after 5

minutes.

flame sensed.

System auto resets.

Flammable vapor

sensor fault

detected, see

warning label

2. Vent blockage or improper vent configuration.

3. Vent termination being affected by windy

conditions.

4. Blower not spinning up to speed.

5. Vent temperature too high.

6. Faulty pressure switch or blower temperature

switch.

2. Pilot tube blocked or restricted.

3. Oxidation build up on pilot electrode.

4. Wire damage to pilot assembly or bad connection

at gas valve.

5. Insufficient combustion air.

6. Low gas pressure.

Pilot valve stuck in open position.

2. Flammable vapor sensor exposed to excessive

Moisture.

3. Flammable vapor sensor exposed to extreme

ambient temperature.

4. Simulated resistive device removed or out of range

(if applicable).

Eight flashes-one flash,

three second pause

Eight flashes, two flashes,

three second pause

flashes, three second

pause

Eight flashes-four flashes,

three second pause

sensor out of

specification.

Temperature sensor

fault

Electronics fault

detected

Gas valve fault

detected.

1. Flammable vapor sensor out of specification.

2. Possible short.

2. Control’s sensor resistance out of range.

3. Replace Control.

2. Reset control on/off switch.

3. Replace electronic module if 8-3 error persists.

2. Reset control on/off switch.

3. Replace gas control if 8-4 error persists.

40

Control Sequence of Operation
Start-up Sequence

Upon powering up, the control checks for the presence of the resistive plug. If
the resistance is in the expected range, the control will begin normal operation
after 5 to 8 seconds.

Normal Heating Sequence

1. The thermostat senses a need for heat.

2. The control checks the pressure switch condition.

3. If the pressure switch is open, the control sends power to the blower motor.

4. The blower starts moving combustion air through the combustion system.

5. The pressure switch closes.

6. The control senses the closed pressure switch and starts the ignition
process by providing a spark at the pilot electrode and allowing gas to flow
to the pilot.

7. When the pilot is lit, the gas control senses the pilot flame and opens the
main gas valve.

8. The main burner is lit.

9. The main burner and blower continue to operate until the thermostat is
satisfied.

10. When the thermostat is satisfied the main and pilot gas valves close.

11. The blower operates for a short post purge period before shutting down.

12. The water heater remains in the stand-by mode until the next call for heat.

41

PARTS LIST DRAWING

PART NAME AND DESCRIPTION

1. Blower Assembly

13. Gas Valve

2. Pressure Switch (not shown)

14. Resistive Device

3. Blower temp. switch (not shown)

15. Drain Valve

4. Jacket Head

16. Inner Door (Left)

5. Top Insulation

17. Screw (Inner Door)

6. Anode-Nipple

18. Outer Door

7. Diptube-Nipple

19. Screw (Outer Door)

8. Flue Core

20. Inner Door (Right)

9. Flue Collector

21. Gas Feedline

10. Flue Baffles

22. Gas Pilot

11. Exhaust Collector/Venting

23. Gas Orifice

12. T & P Valve

24. Burner

(ACTUAL WATER HEATER VISUAL REPRESENTATION MAY VARY)

42

THE FOLLOWING INSTRUCTIONS ARE FOR INST ALLATION OF:

GAS WATER HEATERS SUITABLE FOR WATER (POTABLE)

1. All piping components connected to this water heater for space heating
applications must be suitable for use with potable water. In Massachusetts,
space heating piping length must not exceed 50 feet.

2. Toxic chemicals, such as those used for boiler treatment, must not be

introduced into potable water used for space heating.

3. This water heater must not be connected to an existing heating system or

component(s) previously used with a non-potable water heating appliance.

4. When the system requires water for space heating at temperatures higher
than required for other means, such as an ASSE approved mixing valve
must be installed to temper the water for those uses in order to reduce the
scald hazard potential.

Please refer to the illustration below for the suggested piping arrangement.

HEATING AND SPACE HEATING

43

NOTES

44

NOTES