Page 1
Instruction Manual
COMMERCIAL GAS WATER HEATERS
MODELS SBD85500NE &
SBD85500PE
SERIES 120/121
500 Tennessee Waltz Pkwy
Ashland City, TN 37015
INSTALLATION - OPERATION - SERVICE
- MAINTENANCE - LIMITED WARRANTY
ASME CRN
WARNING: If the information in these
instructions is not followed exactly, a fire
or explosion may result causing property
damage, personal injury or death.
Do not store or use gasoline or other
flammable 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.
Low Lead Content
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.
Thank you for buying this energy efcient water heater.
We appreciate your condence in our products.
PLACE THESE INSTRUCTIONS ADJACENT TO HEATER AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE.
PRINTED 0211 318298-001
Read and understand this instruction
manual and the safety messages
herein before installing, operating or
servicing this water heater.
Failure to follow these instructions and
safety messages could result in death
or serious injury.
This manual must remain with the
water heater.
Page 2
TABLE OF CONTENTS
SAFE INSTALLATION, USE AND SERVICE........................................ 3
APPROVALS ........................................................................................ 3
GENERAL SAFETY INFORMATION .................................................... 4
Precautions ...................................................................................... 5
Grounding Instructions ....................................................................5
Hydrogen Gas Flammable ............................................................... 5
INTRODUCTION ..................................................................................6
Abbreviations Used .........................................................................6
Qualications ...................................................................................6
FEATURES AND COMPONENTS .......................................................7
The Hydro Cannon (self-cleaning system) ......................................7
High Limit Switch ............................................................................. 7
Electronic Ignition Control ................................................................ 7
Exhaust Inducer (blower assy.)........................................................7
Uncrating .........................................................................................7
INSTALLATION CONSIDERATIONS ...................................................8
Rough In Dimensions ......................................................................8
Recovery Capacities ........................................................................ 8
Gas and Electrical Characteristics ................................................... 8
Locating the Water Heater ............................................................... 9
Clearances ......................................................................................9
Installation On Combustible Flooring ............................................. 10
Insulation Blanket ..........................................................................10
Hard Water ....................................................................................10
Circulation Pumps .........................................................................10
High Altitude Installations .............................................................. 11
Propane Installations ..................................................................... 11
Natural Gas Installations ............................................................... 11
INSTALLATION REQUIREMENTS ....................................................12
Gas Pressure Requirements .........................................................12
Supply Gas Regulator ...................................................................12
Power Supply ................................................................................12
Water Temperature Control and Mixing Valves.............................. 12
Dishwashing Machines .................................................................. 13
Closed Water Systems .................................................................. 13
Thermal Expansion ........................................................................ 13
Temperature-Pressure Relief Valve ............................................... 13
Contaminated Air ...........................................................................14
Air Requirements ........................................................................... 14
Unconned Space .........................................................................15
Conned Space .............................................................................15
Vent Adapter .................................................................................. 15
VENTING INSTALLATION .................................................................15
Venting ...........................................................................................15
Multiple Heater Manifold ................................................................ 16
Fresh Air Openings For Conned Spaces ..................................... 16
Outdoor Air Through Two Openings ..............................................16
Outdoor Air Through One Opening ................................................16
Outdoor Air Through Two Horizontal Ducts ................................... 16
Outdoor Air Through Two Vertical Ducts ........................................ 17
Air From Other Indoor Spaces ....................................................... 17
Technical Data Venting ..................................................................18
WATER HEATER INSTALLATION ...................................................... 19
Water Line Connections ................................................................19
T&P Valve Discharge Pipe ............................................................. 19
Installation Diagrams - Top Inlet/Outlet Usage ..............................20
Code Restrictions ..........................................................................20
Heater Wiring ................................................................................. 21
Gas Piping .....................................................................................22
Purging ..........................................................................................22
Gas Pressure Regulator ................................................................ 22
OPERATION ....................................................................................... 23
General .......................................................................................... 23
Filling .............................................................................................23
SEQUENCE OF OPERATION ........................................................... 23
Lighting & Operation Label ............................................................24
Check Venting ...............................................................................25
Check the Igniter Assembly ........................................................... 25
Igniter Assembly ............................................................................25
Main Burner ...................................................................................25
Gas Valves ..................................................................................... 25
Checking the Input ......................................................................... 26
MAINTENANCE .................................................................................26
Venting System ..............................................................................26
Remote Storage Tank Temperature Control ..................................26
Temperature-Pressure Relief Valve Test ....................................... 26
Hot Water Odor ..............................................................................27
Anode Rod Inspection ...................................................................27
Draining and Flushing .................................................................... 27
Recommended Procedure for Periodic Removal of Lime Deposits
from Tank Type Commercial Water Heaters ..................................28
Deliming Solvents .......................................................................... 28
Tank Cleanout Procedure .............................................................. 28
Deliming Using Flo-Jug Method ....................................................28
Ignition Module System .................................................................30
System Diagnostics ....................................................................... 30
SERVICE ............................................................................................ 30
Electrical Servicing ........................................................................30
FOR YOUR INFORMATION ...............................................................30
Start Up Conditions .......................................................................30
Operational Conditions .................................................................. 30
Sequence of Operation Flow Chart ...............................................32
OPERATIONAL CHECKLIST ............................................................. 33
WATER PIPING DIAGRAMS ..............................................................34
MANIFOLD KITS ................................................................................49
LIMITED WARRANTY ........................................................................ 50
NOTES ............................................................................................... 51
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SAFE INSTALLATION, USE AND SERVICE
ASME CRN
The proper installation, use and servicing of this water heater is extremely important to your safety and the safety of others.
Many safety-related messages and instructions have been provided in this manual and on your own water heater to warn you and
others of a potential injury hazard. Read and obey all safety messages and instructions throughout this manual. It is very important
that the meaning of each safety message is understood by you and others who install, use, or service this water heater.
This is the safety alert symbol. It is used to alert you to
potential personal injury hazards. Obey all safety
messages that follow this symbol to avoid possible
injury or death.
DANGER indicates an imminently
DANGER
WARNING
CAUTION
hazardous situation which, if not avoided,
will result in injury or death.
WARNING indicates a potentially hazardous
situation which, if not avoided, could result
in injury or death.
CAUTION indicates a potentially hazardous
situation which, if not avoided, could result in
minor or moderate injury.
CAUTION used without the safety alert
CAUTION
All safety messages will generally tell you about the type of hazard, what can happen if you do not follow the safety message, and
how to avoid the risk of injury.
The California Safe Drinking Water and Toxic Enforcement Act requires the Governor of California to publish a list of substances
known to the State of California to cause cancer, birth defects, or other reproductive harm, and requires businesses to warn of
potential exposure to such substances.
This product contains a chemical known to the State of California to cause cancer, birth defects, or other reproductive harm. This
appliance can cause low level exposure to some of the substances listed in the Act.
symbol indicates a potentially hazardous
situation which, if not avoided, could result in
property damage.
APPROVALS
Low Lead Content
California AB1953
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GENERAL SAFETY INFORMATION
CAUTION
Fire or Explosion Hazard
Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
Avoid all ignition sources if you smell gas.
Do not expose water heater controls to excessive gas
pressure.
Use only the gas shown on the water heater rating label.
Maintain required clearances to combustibles.
Keep ignition sources away from faucets after extended
periods of non-use.
Read instruction manual before
installing, using or servicing
water heater.
Breathing Hazard - Carbon Monoxide Gas
Do not obstruct water heater air intake
with insulating blanket.
Gas and carbon monoxide detectors
are available.
Install water heater in accordance with
the instruction manual.
Breathing carbon monoxide can cause brain damage or
death. Always read and understand instruction manual.
Property Damage Hazard
Fire Hazard
For continued protection against
risk of fire:
Do not install water heater on
carpeted floor.
Do not operate water heater if
flood damaged.
Fire and Explosion Hazard
Use joint compound or Teflon tape
compatible with propane gas.
Leak test before placing the
water heater in operation.
Disconnect gas piping and main
gas shutoff valve before leak
testing.
Install sediment trap in
accordance with NFPA 54.
Fire and Explosion Hazard
Do not use water heater with any gas
other than the gas shown on the rating
label.
Excessive gas pressure to gas valve can
cause serious injury or death.
Turn off gas lines during installation.
Contact a qualified installer or service
agency for installation and service.
All water heaters eventually leak.
•
Do not install without adequate drainage.
•
Electrical Shock Hazard
Turn off power to the water heater
•
before performing any service.
Label all wires prior to disconnecting
•
when performing service. Wiring errors
can cause improper and dangerous
operation.
Verify proper operation after servicing.
•
Failure to follow these instructions can
•
result in personal injury or death.
Jumping out control circuits or components can
result in property damage, personal injury or death.
Service should only be performed by a qualified service
•
agent using proper test equipment.
Altering the water heater controls and/or wiring in any way
•
could result in permanent damage to the controls or water
heater and is not covered under the limited warranty.
Altering the water heater controls and/or wiring in any way
•
could result in altering the ignition sequence allowing gas to
flow to the main burner before the hot surface igniter is at
ignition temperature causing delayed ignition which can
cause a fire or explosion.
Any bypass or alteration of the water
heater controls and/or wiring will result
in voiding the appliance warranty.
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GENERAL SAFETY INFORMATION
Read and understand this instruction
manual and the safety messages
herein before installing, operating or
servicing this water heater.
Failure to follow these instructions and
safety messages could result in death
or serious injury.
This manual must remain with the
water heater.
Water temperature over 125°F (52°C)
can cause severe burns instantly
resulting in severe injury or death.
Children, the elderly and the
physically or mentally disabled are at
highest risk for scald injury.
Feel water before bathing or
showering.
Temperature limiting devices such as
mixing valves must be installed
when required by codes and to
ensure safe temperatures at fixtures.
Explosion Hazard
Overheated water can cause
water tank explosion.
Properly sized temperature and
pressure relief valve must be
installed in the opening provided.
CAUTION
Improper installation, use and service may result
in property damage.
Do not operate water heater if flood damaged.
•
Inspect and anode rods regularly, replace if damaged.
•
Install in location with drainage.
•
Fill tank with water before operation.
•
Properly sized thermal expansion tanks are required on all
•
closed water systems.
Refer to this manual for installation and service.
Verify the power to the water heater is turned off before performing any service procedures.
GENERAL SAFETY INFORMATION
PRECAUTIONS
DO NOT USE THIS APPLIANCE IF ANY PART HAS BEEN
UNDER WATER. Immediately call a qualied service agency to
inspect the appliance and to make a determination on what steps
should be taken next.
If the unit is exposed to the following, do not operate heater
until all corrective steps have been made by a qualified
service agency.
1. External re.
2. Damage.
3. Firing without water.
GROUNDING INSTRUCTIONS
This water heater must be grounded in accordance with the
National Electrical Code and/or local codes. These must be
followed in all cases.
This water heater must be connected to a grounded metal,
permanent wiring system; or an equipment grounding conductor
must be run with the circuit conductors and connected to the
equipment grounding terminal or lead on the water heater, see
Figure 20.
HYDROGEN GAS FLAMMABLE
Explosion Hazard
Flammable hydrogen gases
may be present.
Keep all ignition sources away
from faucet when turning on
hot water.
Hydrogen gas can be produced in a hot water system served
by this appliance that has not been used for a long period of
time (generally two weeks or more). Hydrogen gas is extremely
ammable. To reduce the risk of injury under these conditions, it is
recommended that a hot water faucet served by this appliance be
opened for several minutes before using any electrical appliance
connected to the hot water system. If hydrogen is present there
will probably be an unusual sound such as air escaping through
the pipe as the water begins to ow. THERE SHOULD BE NO
SMOKING OR OPEN FLAME NEAR THE FAUCET AT THE
TIME IT IS OPEN.
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INTRODUCTION
Thank You for purchasing this water heater. Properly installed
and maintained, it should give you years of trouble free service.
ABBREVIATIONS USED
Abbreviations found in this Instruction Manual include :
• ANSI - American National Standards Institute
• ASME - American Society of Mechanical Engineers
• GAMA - Gas Appliance Manufacturer’s Association
• NEC - National Electrical Code
• NFPA - National Fire Protection Association
• UL - Underwriters Laboratory
• CSA - Canadian Standards Association
QUALIFICATIONS
QUALIFIED INSTALLER OR SERVICE AGENCY
Installation and service of this water heater requires ability
equivalent to that of a Qualied Agency (as dened by ANSI
below) in the eld involved. Installation skills such as plumbing,
air supply, venting, gas supply and electrical supply are required
in addition to electrical testing skills when performing service.
ANSI Z223.1 2006 Sec. 3.3.83: “Qualied Agency” - “Any
individual, rm, corporation or company that either in person
or through a representative is engaged in and is responsible
for (a) the installation, testing or replacement of gas piping
or (b) the connection, installation, testing, repair or servicing
of appliances and equipment; that is experienced in such
work; that is familiar with all precautions required; and that
has complied with all the requirements of the authority having
jurisdiction.”
If you are not qualied (as dened by ANSI above) and licensed
or certied as required by the authority having jurisdiction
to perform a given task do not attempt to perform any of the
procedures described in this manual. If you do not understand
the instructions given in this manual do not attempt to perform
any procedures outlined in this manual.
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FEATURES AND COMPONENTS
THE HYDRO CANNON (SELF-CLEANING SYSTEM)
These units include The Hydro Cannon (Self-Cleaning System)
installed in the front water inlet, See Figure 1. The Hydro Cannon
inlet tube can only be used in the front water inlet connection. Do
not install the Hydro Cannon inlet tube in either the top or back inlet
water connection. The Hydro Cannon must be oriented correctly for
proper function. There is a marked range on the pipe nipple portion
of the Hydro Cannon, that must be aligned with the top of the inlet
spud. A label above the jacket hole has an arrow that will point to
the marked portion of the pipe nipple if the orientation is correct.
If the arrow does not point within the marked range on the pipe
nipple, adjust the pipe nipple to correct. A pipe union is supplied
with the Hydro Cannon to reduce the probability of misaligning the
Hydro Cannon accidentally while tightening the connection to the
inlet water supply line. Improper orientation of the Hydro Cannon
can cause poor performance of the heater and can signicantly
reduce outlet water temperatures during heavy draws.
Note: The Hydro Cannon may have 1, 3 or 7 cross tubes.
FIGURE 1
HIGH LIMIT SWITCH
The digital thermostat (Figure 2) contains the high limit (energy
cutoff) switch. The high limit switch interrupts main burner gas ow
should the water temperature reach 203°F (95°C).
In the event of high limit switch operation, the appliance cannot be
restarted unless the water temperature is reduced to approximately
120°F (49°C). The high limit reset button on the front of the control
then needs to be depressed.
Continued manual resetting of high limit control, preceded by
higher than usual water temperature is evidence of high limit
switch operation. The following is a possible reason for high limit
switch operation:
• A malfunction in the thermostatic controls would allow the gas
valve to remain open causing water temperature to exceed the
thermostat setting. The water temperature would continue to
rise until high limit switch operation.
Contact your dealer or service agent if continued high limit switch
operation occurs.
ELECTRONIC IGNITION CONTROL
Each heater is equipped with an ignition module. The solid state
ignition control (Figure 3), ignites the main burner by utilizing a
silicon nitride igniter. The silicon nitride igniter shuts off during
the heating cycle and the main burner ame is sensed through
a remote ame sensor integral to the silicon nitride igniter
assembly.
The ignition control will try to ignite the main burner three times
bef o r e lo cko u t . Th e n it waits one hour before tr y i n g ag a i n to ig n i te
the main burners. This is a continuous cycle.
IGNITION CONTROL BOARD
FIGURE 3
EXHAUST INDUCER (BLOWER ASSY.)
All models are equipped with an exhaust inducer. The inducer
assists in drawing in fresh air to the unit for combustion and then
assists in dispensing the combustion by-products into the venting
leading outside.
The exhaust inducer is equipped with a gravity controlled damper
to reduce the amount of heat loss through the ue, improving
efciency.
DIGITAL THERMOSTAT
FIGURE 2
EXHAUST INDUCER
FIGURE 4
UNCRATING
The heater is shipped with the inducer already installed. The
wiring conduit runs from the thermostat to the inducer. Before
turning unit on, check to make sure the wiring conduit is securely
plugged into the inducer.
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INSTALLATION CONSIDERATIONS
ROUGH IN DIMENSIONS
RECOVERY CAPACITIES
GAS AND ELECTRICAL CHARACTERISTICS
FRONT VIEW
TOP
OUTLET
1 1/2” NPT
TOP VIEW
FIGURE 5
TABLE 1. ROUGH-IN-DIMENSIONS
Dimensions in Inches/cm
Recovery Rating Capacities (GPH and LPH) at temperature rise indicated
Model
SBD85500NE/
SBD85500PE
SBD85500NE/
SBD85500PE
Input Rate
Btu/Hr
Kw/Hr
500,000 85 81.50 17.50 77.25 67.50 27.13 21.00 1.00 67.50 8.00 27.75 1.50 1.50 1.50 1.50 1.50 1.50 812 857
Approximate
Tank Cap
G/L
147 322 207 44 196 171 69 53 3 171 20 70 1.50 1.50 1.50 1.50 1.50 1.50 368 389
A B C D E F
TABLE 2. RECOVERY CAPACITIES, based on 80% efciency
Model
SBD85500NE/
SBD85500PE
SBD85500NE/
SBD85500PE
Input Rate
Btu/Hr
Kw/Hr
500,000 85 1616 1212 970 808 693 606 539 485 441 404 373 346
147 322 6118 4588 3671 3059 2622 2294 2039 1835 1668 1529 1412 1311
Approximate
Tank Cap
G/L
30°F 40°F 50°F 60°F 70°F 80°F 90°F 100°F 110°F 120°F 130°F 140°F
17°C 22°C 28°C 33°C 39°C 44°C 50°C 56°C 61°C 67°C 72°C 78°C
F
Gas
Inlet GH
BACK VIEW
TOP
INLET
1 1/2” NPT
Connections
Vent
Dia IJ Top Front Back To p Front Back
Inlet (NPT) Outlet (NPT)
Approx. Ship Weight
Std.
Lbs/
Kgs.
ASME
Lbs/
Kgs.
TABLE 3. GAS AND ELECTRICAL CHARACTERISTICS
Model Gas Type
SBD85500NE/
SBD85500PE
SBD85500NE/
SBD85500PE
Minumum Maximum
Natural 4.5" W.C. (1.12 kPa) 14" W.C. (3.48 kPa) 3.5" W.C. (0.87 kPa) 120/60 <5
Propane 11" W.C. (2.74 kPa) 14" W.C. (3.48 kPa) 10" W.C. (2.49 kPa) 120/60 <5
Gas Supply Pressure
Gas Manifold Pressure Volts / Hz Amperes
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CAUTION
INSTALLATION CONSIDERATIONS
LOCATING THE WATER HEATER
Property Damage Hazard
All water heaters eventually leak.
•
Do not install without adequate drainage.
•
When installing the heater, consideration must be given to
proper location. Location selected should be as close to the
stack or chimney as practicable, with adequate air supply and as
centralized with the piping system as possible.
Fire or Explosion Hazard
Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
Avoid all ignition sources if you smell gas.
Do not expose water heater controls to excessive gas
pressure.
Use only the gas shown on the water heater rating label.
Maintain required clearances to combustibles.
Keep ignition sources away from faucets after extended
periods of non-use.
Read instruction manual before
installing, using or servicing
water heater.
THERE IS A RISK IN USING FUEL BURNING APPLIANCES
SUCH AS GAS WATER HEATERS IN ROOMS, GARAGES OR
OTHER AREAS WHERE GASOLINE, OTHER FLAMMABLE
LIQUIDS OR ENGINE DRIVEN EQUIPMENT OR VEHICLES ARE
STORED, OPERATED OR REPAIRED. FLAMMABLE VAPORS
ARE HEAVY AND TRAVEL ALONG THE FLOOR AND MAY BE
IGNITED BY THE HEATER’S PILOT OR MAIN BURNER FLAMES
CAUSING FIRE OR EXPLOSION. SOME LOCAL CODES
PERMIT OPERATION OF GAS APPLIANCES IN SUCH AREAS
IF THEY ARE INSTALLED 18” OR MORE ABOVE THE FLOOR.
THIS MAY REDUCE THE RISK IF LOCATION IN SUCH AN AREA
CANNOT BE AVOIDED.
DO NOT INSTALL THIS WATER HEATER DIRECTLY ON A
CARPETED FLOOR. A FIRE HAZARD MAY RESULT. Instead the
water heater must be placed on a metal or wood panel extending
beyond the full width and depth by at least 3 inches in any direction.
If the heater is installed in a carpeted alcove, the entire oor shall
be covered by the panel. Also, see the DRAINING requirements
in MAINTENANCE Section.
THE HEATER SHALL BE LOCATED OR PROTECTED SO IT
IS NOT SUBJECT TO PHYSICAL DAMAGE BY A MOVING
VEHICLE.
FLAMMABLE ITEMS, PRESSURIZED CONTAINERS OR ANY
OTHER POTENTIAL FIRE HAZARDOUS ARTICLES MUST
NEVER BE PLACED ON OR ADJACENT TO THE HEATER.
OPEN CONTAINERS OR FLAMMABLE MATERIAL SHOULD
NOT BE STORED OR USED IN THE SAME ROOM WITH THE
HEATER.
THE HEATER MUST NOT BE LOCATED IN AN AREA WHERE
IT WILL BE SUBJECT TO FREEZING.
LOCATE IT NEAR A FLOOR DRAIN. THE HEATER SHOULD
BE LOCATED IN AN AREA WHERE LEAKAGE FROM THE
HEATER OR CONNECTIONS WILL NOT RESULT IN DAMAGE
TO THE ADJACENT AREA OR TO LOWER FLOORS OF THE
STRUCTURE.
WHEN SUCH LOCATIONS CANNOT BE AVOIDED, A SUITABLE
DRAIN PAN SHOULD BE INSTALLED UNDER THE HEATER.
Such pans should be fabricated with sides at least 2” deep, with
length and width at least 2” greater than the diameter of the heater
and must be piped to an adequate drain. The pan must not restrict
combustion air ow.
CLEARANCES
This water heater is approved for installation on combustible
ooring (with NSF Leg Kit #9003425205) in an alcove when the
minimum clearance from any combustible construction is as
indicated in Figure 6 and Table 4.
In all installations the minimum combustible clearances from
vent piping shall be 6” (15.2 cm). Vent piping passing through a
combustible wall or ceiling must be a continuous run (no joints)
and retain the 6” (15.2 cm) clearance unless an approved reducing
thimble is used.
A service clearance of 24” (61 cm) should be maintained from
serviceable parts, such as relief valves, ue bafes, thermostats,
cleanout openings or drain valves.
The units are approved for installation with side, rear and ceiling
clearances as indicated below:
TABLE 4
MINIMUM CLEARANCES TO COMBUSTIBLES IN INCHES (mm)
"A"
MODEL
SBD85500NE/
SBD85500PE
MINIMUM CLEARANCES TO NONCOMBUSTIBLE CONSTRUCTION
MODEL
SBD85500NE/
SBD85500PE
RIGHT
SIDE
5"
(12.7 cm)
"A"
RIGHT
SIDE
0 0 0
"B"
LEFT
SIDE
5"
(12.7 cm)
TABLE 5
"B"
LEFT
SIDE
"C"
BACK
5"
(12.7 cm)
"C"
BACK
"D"
CEILING
20"
(50.8 cm)
"D"
CEILING
12"
(30.5 cm)
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FIGURE 6
INSULATION BLANKET
Breathing Hazard - Carbon Monoxide Gas
Do not obstruct water heater air intake
with insulating blanket.
Gas and carbon monoxide detectors
are available.
Install water heater in accordance with
the instruction manual.
Breathing carbon monoxide can cause brain damage or
death. Always read and understand instruction manual.
Insulation blankets are available to the general public for external
use on gas water heaters but are not necessary with these
products. The purpose of an insulation blanket is to reduce the
standby heat loss encountered with storage tank heaters. The
water heaters covered by this manual meet or exceed the Energy
Policy Act standards with respect to insulation and standby heat
loss requirements, making an insulation blanket unnecessary.
Should you choose to apply an insulation blanket to this
heater, you should follow these instructions. See the Features
and Components section of this manual for identication of
components mentioned below. Failure to follow these instructions
can restrict the air ow required for proper combustion, potentially
resulting in re, asphyxiation, serious personal injury or death.
INSTALLATION ON COMBUSTIBLE FLOORING
The SBD85500NE/SBD85500PE is approved for installations
on combustible ooring when installed with NSF Leg Kit number
9003425205
FIGURE 7
1. Unit needs to be lifted in a way not to damage unit or laid
on it’s side to access the bottom of the legs.
2. Slide leg extension under leg and the bolt up through the
bottom hole located in the bottom of the leg.
3. Once in place, screw nut down and secure.
4. Front of leg should line up with front of leg extension as
shown in Figure 7 to make sure weight of unit is distributed
through the leg extension.
• DO NOT apply insulation to the top of the water heater, as this
will interfere with safe operation of the exhaust inducer.
• DO NOT cover the gas valve, thermostat or the TemperaturePressure Relief Valve.
• DO NOT allow insulation to come within 2” (5 cm) of the burners,
to prevent blockage of combustion air ow to the burners.
• DO NOT allow insulation to come within 9 inches (23 cm)
of oor, (within 2 inches (5 cm) of bottom cover) to prevent
blockage of combustion air ow to the burners..
• DO NOT cover the instruction manual. Keep it on the side of
the water heater or nearby for future reference.
• DO obtain new warning and instruction labels from the
manufacturer for placement on the blanket directly over the
existing labels.
• DO inspect the insulation blanket frequently to make certain it
does not sag, thereby obstructing combustion air ow.
HARD WATER
Where hard water conditions exist, water softening or the
threshold type of water treatment is recommended. This will
protect the dishwashers, coffee urns, water heaters, water piping
and other equipment.
See the Maintenance Section in this manual for sediment and
lime scale removal procedures.
CIRCULATION PUMPS
A circulating pump is used when a system requires a circulating
loop or there is a storage tank used in conjunction with the water
heater. See Water Piping Diagrams in this manual for installation
location of circulating pumps.
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See the Circulation Pump Wiring Diagrams (Figure 8, Figure
CIRCULATING PUMP WIRING DIAGRAM
DISHWASHER LOOP WITH TOGGLE SWITCH
FIELD SUPPLIED TEMPERATURE
CONTROL INSTALLED IN THE
CIRCULATING LOOP RETURN LINE
DISHWASHER
TOGGLE
SWITCH
CIRC
PUMP
MOTOR
L1 HOT
120 VAC
POWER
NOTE: USE SEPARATE 120 VAC POWER
SUPPLY FOR PUMP CIRCUIT. DO NOT
SHARE POWER WITH APPLIANCE AS THIS
MAY CAUSE ELECTRICAL LINE NOISE AND
LEAD TO ERRATIC CONTROL SYSTEM
OPERATION.
9) in this manual for electrical hookup information. Install in
accordance with the current edition of the National Electrical
Code, NFPA 70 or the Canadian Electrical Code, CSA C22.1.
All-bronze circulators are recommended for used with commercial
water heaters.
Some circulating pumps are manufactured with sealed bearings
and do not require further lubrication. Some circulating pumps
must be periodically oiled. Refer to the pump manufacturer’s
instructions for lubrication requirements.
CIRCULATING PUMP WIRING DIAGRAM
STORAGE TANK OR BUILDING RECIRCULATION
FIELD SUPPLIED TEMPERATURE CONTROL
INSTALLED IN THE STORAGE TANK
NOTE: USE SEPARATE 120 VAC POWER
SUPPLY FOR PUMP CIRCUIT. DO NOT
SHARE POWER WITH APPLIANCE AS THIS
MAY CAUSE ELECTRICAL LINE NOISE AND
LEAD TO ERRATIC CONTROL SYSTEM
OPERATION.
L1 HOT
120 VAC
POWER
L2 NEUTRAL
OR CIRCULATING LOOP RETURN LINE
CIRC
PUMP
MOTOR
FIGURE 8.
CIRCULATING PUMP WIRING DIAGRAM
DISHWASHER LOOP WITH TOGGLE SWITCH
DISHWASHER
TOGGLE
SWITCH
NOTE: USE SEPARATE 120 VAC POWER
SUPPLY FOR PUMP CIRCUIT. DO NOT
SHARE POWER WITH APPLIANCE AS THIS
MAY CAUSE ELECTRICAL LINE NOISE AND
LEAD TO ERRATIC CONTROL SYSTEM
OPERATION.
L1 HOT
120 VAC
POWER
L2 NEUTRAL
FIELD SUPPLIED TEMPERATURE
CONTROL INSTALLED IN THE
CIRCULATING LOOP RETURN LINE
CIRC
PUMP
MOTOR
FIGURE 9.
HIGH ALTITUDE INSTALLATIONS
Fire and Explosion Hazard
Under no circumstances should the
input exceed the rate shown on the
water heater’s rating label.
Overfiring could result in fire or
explosion.
Gas and carbon monoxide detectors are
available.
Breathing Hazard - Carbon Monoxide Gas
Under no circumstances should
the input exceed the rate shown
on the water heater’s rating label.
Overfiring could result in damage to
the water heater and sooting.
Gas and carbon monoxide detectors
are available.
Breathing carbon monoxide can cause brain damage or
death. Always read and understand instruction manual.
PROPANE INSTALLATIONS
INSTALLATIONS ABOVE 2000 FEET (610 METERS) REQUIRE
REPLACEMENT OF BURNER ORIFICES IN ACCORDANCE
WITH CURRENT EDITION OF THE NATIONAL FUEL GAS CODE
(ANSI Z223.1). FOR CANADIAN INSTALLATIONS CONSULT
CANADIAN INSTALLATIONS CODE CAN/CSA B149.1. FAILURE
TO REPLACE ORIFICES WILL RESULT IN IMPROPER AND
INEFFICIENT OPERATION OF THE APPLIANCE RESULTING
IN THE PRODUCTION OF INCREASED LEVELS OF CARBON
MONOXIDE GAS IN EXCESS OF SAFE LIMITS WHICH COULD
RESULT IN SERIOUS PERSONAL INJURY OR DEATH.
You should contact your gas supplier for any specic changes
which may be required in your area.
As elevation above sea level is increased, there is less oxygen
per cubic foot of air. Therefore, the heater input rate should
be reduced at high altitudes for satisfactory operation with the
reduced oxygen supply. Failure to make this reduction would
result in an over ring of the heater causing sooting, poor
combustion and/or unsatisfactory heater performance.
Ratings specied by manufacturers for most appliances apply for
elevations up to 2000 feet (610m). For elevations above 2000 feet
(610), ratings must be reduced at the rate of 4% for each 1000
feet (305m) above sea level. For example, if a heater is rated at
78,000 Btuh (22.9 Kwh) at sea level, to rate the heater at 4000 feet
(1219m), you subtract 4 (once for each thousand feet) x.04 (4%
input reduction) x 78,000 (original rating) from the original rating.
Therefore, to calculate the input rating at 4,000 feet (1219m): 4 x
.04 x 78,000 = 12,480 Btuh (3.7 Kwh), 78,000 (22.9 Kwh) - 12,480
(3.7 Kwh) = 65,520 Btuh (19.2 Kwh). At 6000 feet (1829m) the
correct input rating should be 59,280 Btuh (17.4 Kwh).
NATURAL GAS INSTALLATIONS
The natural gas red version of the water heater covered by this
manual is certied for use without modication for altitudes up to
10,100 feet.
For installations above 10,100 feet call the technical support
phone number listed on the back cover of this manual for further
technical assistance. Call the local gas or utility company to verify
Btu per cubic foot content before calling for technical assistance
and have that information available.
Note: The actual ring rate of the water heater must not exceed
the input rating on the water heater's rating label under any
circumstances.
Note: Due to the input rating reduction at high altitudes, the
output rating of the appliance is also reduced and should be
compensated for in the sizing of the equipment for applications.
11
Page 12
INSTALLATION REQUIREMENTS
GAS PRESSURE REQUIREMENTS
Natural gas models require a minimum gas supply pressure of
4.5” W.C. Propane gas models require a minimum gas supply
pressure of 11" W.C. The minimum supply pressure is measured
while gas is not owing (static pressure) AND while gas is owing
(dynamic pressure). The supply pressure (static and dynamic)
should never fall below the specied minimum supply pressure.
The supply pressure should be measured with all gas red
appliances connected to the common main ring at full capacity.
If the supply pressure drops more than 1.5” W.C. as gas begins
to ow to the water heater then the supply gas system including
the gas line and/or the gas regulator may be restricted or
undersized. See Supply Gas Regulator section and Gas Piping
section of this manual.
The gas valve on all models has a maximum gas supply
pressure limit of 14" W.C. The maximum supply pressure is
measured while gas is not owing (static pressure) AND while
gas is owing (dynamic pressure).
SUPPLY GAS REGULATOR
The water heater covered by this manual may require
the installation of a supply gas regulator. If the supply gas
pressure exceeds 14 inches W.C. a supply gas regulator must
be used. If the gas supply pressure exceeds 14" W.C. in a
multiple water heater installation, each water heater must
have its own supply gas regulator. If required, the supply gas
regulator shall be rated at or above the Btu/hr input rating of
the water heater it supplies.
Supply gas regulators shall have inlet and outlet connections
not less than the minimum supply gas line size for the water
heater they serve as shown in Table 9. The Maxitrol 325-7L or
equivalent is recommended.
POWER SUPPLY
The water heaters covered in this manual require a 120
VAC, 1Ø (single phase), 60Hz, 15 amp power supply and
must also be electrically grounded in accordance with local
codes or, in the absence of local codes, with the National
Electrical Code, ANSI/NFPA 70 or the Canadian Electrical
Code, CSA C22.1.
WATER TEMPERATURE CONTROL AND MIXING VALVES
Water temperature over 125°F (52°C)
can cause severe burns instantly
resulting in severe injury or death.
Children, the elderly and the
physically or mentally disabled are at
highest risk for scald injury.
Feel water before bathing or
showering.
Temperature limiting devices such as
mixing valves must be installed
when required by codes and to
ensure safe temperatures at fixtures.
Water heated to a temperature which will satisfy clothes
washing, dish washing, and other sanitizing needs can scald
and cause permanent injury upon contact. Short repeated
heating cycles caused by small hot water uses can cause
temperatures at the point of use to exceed the water heater’s
temperature setting by up to 20°F (11°C).
Some people are more likely to be permanently injured by
hot water than others. These include the elderly, children, the
inrm and the physically/mentally disabled. Table 6 shows the
approximate time-to-burn relationship for normal adult skin. If
anyone using hot water provided by the water heater being
installed ts into one of these groups or if there is a local code
or state law requiring a certain water temperature at the point
of use, then special precautions must be taken.
In addition to using the lowest possible temperature setting
that satises the demand of the application a Mixing Valve
should be installed at the water heater (see Figure 10) or at
the hot water taps to further reduce system water temperature.
Mixing valves are available at plumbing supply stores.
Consult a Qualied Installer or Service Agency. Follow mixing
valve manufacturer’s instructions for installation of the valves.
TABLE 6.
Water Temperature
180°F (82°C) Nearly instantaneous
170°F (77°C) Nearly instantaneous
160°F (71°C) About 1/2 second
150°F (66°C) About 1-1/2 seconds
140°F (60°C) Less than 5 seconds
130°F (54°C) About 30 seconds
120°F (49°C) More than 5 minutes
Time to Produce 2nd & 3rd
Degree Burns on Adult Skin
12
Page 13
HOT WATER
OUTLET
TEMPERED WATER
OUTLET
12” TO 15”
(30-38 cm)
A properly sized thermal expansion tank must be installed on
all closed systems to control the harmful effects of thermal
expansion. Contact a local plumbing service agency to have a
thermal expansion tank installed.
See Water Line Connections on page 19 and the Water Piping
Diagrams beginning on page 34.
TEMPERATURE-PRESSURE RELIEF VALVE
COLD
WATER
INLET
CHECK
VALV E
TO TANK
INLET
FIGURE 10
CHECK
VALV E
MIXING
VALV E
DISHWASHING MACHINES
All dishwashing machines meeting the National Sanitation
Foundation requirements are designed to operate with water
ow pressures between 15 and 25 pounds per square inch (103
kPa and 173 kPa). Flow pressures above 25 pounds per square
inch (173 kPa), or below 15 pounds per square inch (103 kPa),
will result in improperly sanitized dishes. Where pressures are
high, a water pressure reducing or ow regulating control valve
should be used in the 180°F (82°C) line to the dishwashing
machine and should be adjusted to deliver water pressure
between these limits.
The National Sanitation Foundation also recommends circulation
of 180°F (82°C) water. Where this is done, the circulation should
be very gentle so that it does not cause any unnecessary
turbulence inside the water heater. The circulation should be just
enough to provide 180°F (82°C) water at the point of take-off to
the dishwashing machine.
Adjust ow by throttling a full port ball valve installed in the
circulating line on the outlet side of the pump. Never throttle ow
on the suction side of a pump. See Water Piping Diagrams in
this manual.
CLOSED WATER SYSTEMS
Water supply systems may, because of code requirements
or such conditions as high line pressure, among others, have
installed devices such as pressure reducing valves, check
valves, and back ow preventers. Devices such as these cause
the water system to be a closed system.
THERMAL EXPANSION
As water is heated, it expands (thermal expansion). In a closed
system the volume of water will grow when it is heated. As the
volume of water grows there will be a corresponding increase
in water pressure due to thermal expansion. Thermal expansion
can cause premature tank failure (leakage). This type of failure
is not covered under the limited warranty. Thermal expansion
can also cause intermittent Temperature-Pressure Relief Valve
operation: water discharged from the valve due to excessive
pressure build up. This condition is not covered under the limited
warranty. The Temperature-Pressure Relief Valve is not intended
for the constant relief of thermal expansion.
Explosion Hazard
Temperature-Pressure Relief Valve
must comply with ANSI Z21.22CSA 4.4 and ASME code.
Properly sized temperaturepressure relief valve must be
installed in opening provided.
Can result in overheating and
excessive tank pressure.
Can cause serious injury or death.
This water heater is provided with a properly rated/sized and
certied combination Temperature-Pressure Relief Valve (T&P
valve) by the manufacturer. The valve is certied by a nationally
recognized testing laboratory that maintains periodic inspection
of production of listed equipment of materials as meeting the
requirements for Relief Valves for Hot Water Supply Systems,
ANSI Z21.22 • CSA 4.4, and the code requirements of ASME.
If replaced, the new T&P valve must meet the requirements
of local codes, but not less than a combination TemperaturePressure Relief Valve rated/sized and certied as indicated in
the above paragraph. The new valve must be marked with a
maximum set pressure not to exceed the marked hydrostatic
working pressure of the water heater (150 psi = 1,035 kPa) and
a discharge capacity not less than the water heater Btu/hr or kW
input rate as shown on the water heater’s model rating label.
NOTE: In addition to the factory installed Temperature-Pressure
Relief Valve on the water heater, each remote storage tank that
may be installed and piped to a water heating appliance must also
have its own properly sized, rated and approved Temperature-
Pressure Relief Valve installed. Call the toll free technical
support phone number listed on the back cover of this manual
for technical assistance in sizing a Temperature-Pressure Relief
Valve for remote storage tanks.
For safe operation of the water heater, the Temperature-Pressure
Relief Valve must not be removed from its designated opening
nor plugged. The Temperature-Pressure Relief Valve must be
installed directly into the tting of the water heater designed for the
relief valve. Install discharge piping so that any discharge will exit
the pipe within 6 inches (15.2 cm) above an adequate oor drain,
or external to the building. In cold climates it is recommended
that it be terminated at an adequate drain inside the building. Be
certain that no contact is made with any live electrical part. The
discharge opening must not be blocked or reduced in size under
any circumstances. Excessive length, over 30 feet (9.14 m), or
use of more than four elbows can cause restriction and reduce
the discharge capacity of the valve.
13
Page 14
No valve or other obstruction is to be placed between the
CAUTION
Temperature-Pressure Relief Valve and the tank. Do not connect
discharge piping directly to the drain unless a 6” (15.2 cm)
air gap is provided. To prevent bodily injury, hazard to life, or
property damage, the relief valve must be allowed to discharge
water in adequate quantities should circumstances demand. If
the discharge pipe is not connected to a drain or other suitable
means, the water ow may cause property damage.
Water Damage Hazard
Temperature-Pressure Relief Valve discharge
•
pipe must terminate at adequate drain.
T&P Valve Discharge Pipe Requirements:
• Shall not be smaller in size than the outlet pipe size of the
valve, or have any reducing couplings or other restrictions.
• Shall not be plugged or blocked.
• Shall not be exposed to freezing temperatures.
• Shall be of material listed for hot water distribution.
• Shall be installed so as to allow complete drainage of both
the Temperature-Pressure Relief Valve and the discharge
pipe.
• Must terminate a maximum of six inches above a oor
drain or external to the building. In cold climates, it is
recommended that the discharge pipe be terminated at an
adequate drain inside the building.
• Shall not have any valve or other obstruction between the
relief valve and the drain.
If you do not understand these instructions or have any questions
regarding the Temperature-Pressure Relief Valve call the toll free
number listed on the back cover of this manual for technical
assistance.
CONTAMINATED AIR
Breathing Hazard - Carbon Monoxide Gas
Install water heater in accordance with
the Instruction Manual and NFPA 54 or
CAN/CSA-B149.1.
To avoid injury, combustion and ventilation
air must be taken from outdoors.
Do not place chemical vapor emitting
products near water heater.
Breathing carbon monoxide can cause brain damage or
death. Always read and understand instruction manual.
Corrosion of the ue ways and vent system may occur if air for
combustion contains certain chemical vapors. Such corrosion
may result in failure and risk of asphyxiation.
Combustion air that is contaminated can greatly diminish the life
span of the water heater and water heater components such as
hot surface igniters and burners. Propellants of aerosol sprays,
beauty shop supplies, water softener chemicals and chemicals
used in dry cleaning processes that are present in the combustion,
ventilation or ambient air can cause such damage.
Do not store products of this sort near the water heater. Air which
is brought in contact with the water heater should not contain any
of these chemicals. If necessary, uncontaminated air should be
obtained from remote or outdoor sources. The limited warranty is
voided when failure of water heater is due to a corrosive atmosphere.
(See limited warranty for complete terms and conditions).
Burn hazard.
Hot water discharge.
Keep clear of TemperaturePressure Relief Valve
discharge outlet.
The Temperature-Pressure Relief Valve must be manually
operated at least twice a year. Caution should be taken to ensure
that (1) no one is in front of or around the outlet of the TemperaturePressure Relief Valve discharge line, and (2) the water manually
discharged will not cause any bodily injury or property damage
because the water may be extremely hot. If after manually
operating the valve, it fails to completely reset and continues to
release water, immediately close the cold water inlet to the water
heater, follow the draining instructions in this manual, and replace
the Temperature-Pressure Relief Valve with a properly rated/sized
new one.
NOTE: The purpose of a Temperature-Pressure Relief Valve is
to prevent excessive temperatures and pressures in the storage
tank. The T&P valve is not intended for the constant relief of
thermal expansion. A properly sized thermal expansion tank must
be installed on all closed systems to control thermal expansion,
see Closed Water Systems and Thermal Expansion on page 13.
AIR REQUIREMENTS
Breathing Hazard - Carbon Monoxide Gas
Install water heater in accordance with
the Instruction Manual and NFPA 54 or
CAN/CSA-B149.1.
To avoid injury, combustion and ventilation
air must be taken from outdoors.
Do not place chemical vapor emitting
products near water heater.
Breathing carbon monoxide can cause brain damage or
death. Always read and understand instruction manual.
For safe operation an adequate supply of fresh uncontaminated
air for combustion and ventilation must be provided.
An insufcient supply of air can cause recirculation of combustion
products resulting in contamination that may be hazardous to
life. Such a condition often will result in a yellow, luminous burner
ame, causing sooting of the combustion chamber, burners and
ue tubes and creates a risk of asphyxiation.
Do not install the water heater in a conned space unless an
adequate supply of air for combustion and ventilation is brought
in to that space using the methods described in the Conned
Space section that follows.
14
Page 15
Never obstruct the ow of ventilation air. If you have any doubts
or questions at all, call your gas supplier. Failure to provide the
proper amount of combustion air can result in a re or explosion
and cause property damage, serious bodily injury or death.
UNCONFINED SPACE
An Unconned Space is one whose volume IS NOT LESS THAN
50 cubic feet per 1,000 Btu/hr (4.8 cubic meters per kW) of the
total input rating of all appliances installed in the space. Rooms
communicating directly with the space, in which the appliances
are installed, through openings not furnished with doors, are
considered a part of the unconned space.
Makeup air requirements for the operation of exhaust fans,
kitchen ventilation systems, clothes dryers and replaces shall
also be considered in determining the adequacy of a space to
provide combustion, ventilation and dilution air.
UNUSUALLY TIGHT CONSTRUCTION
In unconned spaces in buildings, inltration may be adequate
to provide air for combustion, ventilation and dilution of ue
gases. However, in buildings of unusually tight construction (for
example, weather stripping, heavily insulated, caulked, vapor
barrier, etc.) additional air must be provided using the methods
described in the Conned Space section that follows.
CONFINED SPACE
A Conned Space is one whose volume IS LESS THAN 50 cubic
feet per 1,000 Btu/hr (4.8 cubic meters per kW) of the total input
rating of all appliances installed in the space.
Openings must be installed to provide fresh air for combustion,
ventilation and dilution in conned spaces. The required size for
the openings is dependent on the method used to provide fresh
air to the conned space AND the total Btu/hr input rating of all
appliances installed in the space.
EXHAUST FANS
Where exhaust fans are installed, additional air shall be provided
to replace the exhausted air. When an exhaust fan is installed
in the same space with a water heater, sufcient openings to
provide fresh air must be provided that accommodate the
requirements for all appliances in the room and the exhaust fan.
Undersized openings will cause air to be drawn into the room
through the water heater’s vent system causing poor combustion.
Sooting, serious damage to the water heater and the risk of re
or explosion may result. It can also create a risk of asphyxiation.
LOUVERS AND GRILLES
The free areas of the fresh air openings in the instructions that
follow do not take in to account the presence of louvers, grilles
or screens in the openings.
The required size of openings for combustion, ventilation
and dilution air shall be based on the “net free area” of each
opening. Where the free area through a design of louver or
grille or screen is known, it shall be used in calculating the
size of opening required to provide the free area specied.
Where the louver and grille design and free area are not
known, it shall be assumed that wood louvers will have 25%
free area and metal louvers and grilles will have 75% free
area. Non motorized louvers and grilles shall be xed in the
open position.
VENT ADAPTER
The SBD85500NE/SBD85500PE model is shipped with a 6" to
8" diameter vent adapter (Fig. 11). The vent adapter ts on top
of the installed blower exhaust. Use only vent adapters supplied
with the unit. The venting must comply with the NATIONAL
FUEL GAS CODE, ANSI Z223.1/NFPA 54 and for Canadian
installations consult the Canadian Installation Code CAN/CSA
B149.1-00.
FIGURE 11
VENTING INSTALLATION
VENTING
THE INSTRUCTIONS IN THIS SECTION ON VENTING MUST
BE FOLLOWED TO AVOID CHOKED COMBUSTION OR
RECIRCULATION OF FLUE GASES. SUCH CONDITIONS
CAUSE SOOTING OR RISKS OF FIRE AND ASPHYXIATION.
Heater must be protected from freezing downdrafts.
Remove all soot or other obstructions from the chimney that will
retard a free draft.
Type B venting is recommended with these heaters. For
typical venting application see TECHNICAL DATA VENTING
on page 18.
This water heater must be vented in compliance with all local
codes, the current revision of the National Fuel Gas Code
(ANSI-Z223.1) and with the Category I Venting Tables.
If any part of the vent system is exposed to ambient temperatures
below 40°F it must be insulated to prevent condensation.
• Do not connect the heater to a common vent or chimney
with solid fuel burning equipment. This practice is
prohibited by many local building codes as is the
practice of venting gas fired equipment to the duct work
of ventilation systems.
FIGURE 12
• Where a separate vent connection is not available and the
vent pipe from the heater must be connected to a common
15
Page 16
vent with an oil burning furnace, the vent pipe should enter
the smaller common vent or chimney at a point above the
large vent pipe.
MULTIPLE HEATER MANIFOLD
Figure 13 and Table 7 should be used for horizontally manifolding
two or more heaters.
FIGURE 13
FRESH AIR OPENINGS FOR CONFINED SPACES
The following instructions shall be used to calculate the size,
number and placement of openings providing fresh air for
combustion, ventilation and dilution in conned spaces. The
illustrations shown in this section of the manual are a reference
for the openings that provide fresh air into conned spaces
only. DO NOT refer to these illustrations for the purpose of vent
installation. See Venting Installation on page 15 for complete
venting installation instructions.
OUTDOOR AIR THROUGH TWO OPENINGS
OUTDOOR AIR THROUGH ONE OPENING
FIGURE 15
Alternatively a single permanent opening, commencing within 12
inches (300 mm) of the top of the enclosure, shall be provided. See
Figure 15. The water heater shall have clearances of at least 1 inch
(25 mm) from the sides and back and 6 inches (l50 mm) from the
front of the appliance. The opening shall directly communicate with
the outdoors or shall communicate through a vertical or horizontal
duct to the outdoors or spaces that freely communicate with the
outdoors and shall have a minimum free area of the following:
1. 1 square inch per 3000 Btu/hr (733 mm2 per kW) of the total
input rating of all appliances located in the enclosure, and
2. Not less than the sum of the areas of all vent connectors in
the space.
OUTDOOR AIR THROUGH TWO HORIZONTAL DUCTS
FIGURE 14
The conned space shall be provided with two permanent
openings, one commencing within 12 inches (300 mm) of the top
and one commencing within 12 inches (300 mm) of the bottom of
the enclosure. The openings shall communicate directly with the
outdoors. See Figure 14.
Each opening shall have a minimum free area of 1 square inch
per 4,000 Btu/hr (550 mm2 per kW) of the aggregate input rating
of all appliances installed in the enclosure. Each opening shall
not be less than 100 square inches (645 cm2).
FIGURE 16
The conned space shall be provided with two permanent
horizontal ducts, one commencing within 12 inches (300 mm) of
the top and one commencing within 12 inches (300 mm) of the
bottom of the enclosure. The horizontal ducts shall communicate
directly with the outdoors. See Figure 16.
Each duct opening shall have a minimum free area of 1 square
inch per 2,000 Btu/hr (1100 mm2 per kW) of the aggregate input
rating of all appliances installed in the enclosure.
When ducts are used, they shall 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 shall be not less
than 3 inches.
16
Page 17
OUTDOOR AIR THROUGH TWO VERTICAL DUCTS
The illustrations shown in this section of the manual are a
reference for the openings that provide fresh air into conned
spaces only.
DO NOT refer to these illustrations for the purpose of vent
installation. See Venting Installation on page 15 for complete
venting installation instructions.
FIGURE 17
The conned space shall be provided with two permanent vertical
ducts, one commencing within 12 inches (300 mm) of the top and
one commencing within 12 inches (300 mm) of the bottom of the
enclosure. The vertical ducts shall communicate directly with the
outdoors. See Figure 17.
Each duct opening shall have a minimum free area of 1 square
inch per 4,000 Btu/hr (550 mm2 per kW) of the aggregate input
rating of all appliances installed in the enclosure.
When ducts are used, they shall 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 shall be not less
than 3 inches.
AIR FROM OTHER INDOOR SPACES
FIGURE 18
The conned space shall be provided with two permanent
openings, one commencing within 12 inches (300 mm) of the top
and one commencing within 12 inches (300 mm) of the bottom of
the enclosure. See Figure 18.
Each opening shall communicate directly with an additional
room(s) of sufcient volume so that the combined volume of all
spaces meets the criteria for an Unconned Space.
Each opening shall have a minimum free area of 1 square inch
per 1,000 Btu/hr (2200 mm2 per kW) of the aggregate input rating
of all appliances installed in the enclosure. Each opening shall
not be less than 100 square inches (645 cm2).
17
Page 18
TABLE 7. TECHNICAL DATA VENTING
TYPE B GAS VENT
Multiple Gas Fired Tank-Type Heaters
When venting multiple tank type heaters using Type B vent
pipe, follow the installation diagram (gure 13) and tables
below which give sizing and data based upon NFPA 54/ANSI
Z223. 2006.
Model 500
Input: 500,000 btu/hr
Total Vent Height (Feet)
Vent connector size: 8 inches 6 8 10 15 20 30 50 100
Input (btu/hr) Rise Vent Connector Diameter (Inches)
500,000 1 Ft. - 10 10 10 9 8 8 7
500,000 2 Ft. 10 10 10 9 9 8 8 7
500,000 3 Ft. 10 10 9 9 9 8 7 7
Multiple Fan Assisted Water Heaters
Total Vent Height (Feet)
Number of 500
Heaters
2 1,000,000 14 14 12 12 10 10 9 8
3 1,500,000 16 16 14 14 14 12 12 10
4 2,000,000 18 18 16 16 14 14 12 12
Number of 500
Heaters
2 1,000,000 16 14 14 14 12 12 10 9
3 1,500,000 18 18 16 16 14 14 12 10
4 2,000,000 20 20 18 18 16 16 14 12
Combined
Input (btu/hr)
Combined
Input (btu/hr)
6 8 10 15 20 30 50 100
Manifold and Common Vent Diameter (Inches)
Combination of Multiple Fan Assisted and Natural Draft Water Heaters
Total Vent Height (Feet)
6 8 10 15 20 30 50 100
Manifold and Common Vent Diameter (Inches)
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Page 19
WATER HEATER INSTALLATION
CAUTION
WATER LINE CONNECTIONS
This manual provides detailed installation diagrams (see pages
34-48 of this manual) for typical methods of application for the
water heater(s).
WATER (POTABLE) HEATING AND SPACE HEATING
1. All piping components connected to this unit for space
heating applications shall be suitable for use with potable
water.
2. Toxic chemicals, such as those used for boiler treatment,
shall NEVER be introduced into this system.
3. This unit may NEVER be connected to any 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 domestic water
purposes, a tempering valve must be installed. Please
refer to installation diagrams on pages 34-48 of this manual
for suggested piping arrangements.
THERMOMETERS (NOT SUPPLIED)
Thermometers should be obtained and eld installed as shown in
the installation diagrams.
Thermometers are installed in the system as a means of detecting
the temperature of the outlet water supply.
WATER PIPING DIAGRAMS
This manual provides detailed water piping diagrams for typical
methods of application for the water heaters, see Water Piping
Diagrams beginning on page 34.
The water heater may be installed by itself, or with a separate
storage tank, on both single and two-temperature systems. When
used with a separate storage tank, the circulation may be either
by gravity or by means of a circulating pump. When a circulating
pump is used it is important to note that the ow rate should be
slow so that there will be a minimum of turbulence inside the heater.
Adjust ow by throttling a full port ball valve installed in the
circulating line on the outlet side of the pump. Never throttle ow
on the suction side of a pump.
T&P VALVE DISCHARGE PIPE
Explosion Hazard
Temperature-Pressure Relief Valve
must comply with ANSI Z21.22CSA 4.4 and ASME code.
Properly sized temperaturepressure relief valve must be
installed in opening provided.
Can result in overheating and
excessive tank pressure.
Can cause serious injury or death.
This water heater is provided with a properly rated/sized and
certied combination temperature - pressure (T&P) relief valve
by the manufacturer. See Temperature-Pressure Relief Valve
on pages 13-14 for information on replacement and other
requirements.
Water Damage Hazard
Temperature-Pressure Relief Valve discharge
•
pipe must terminate at adequate drain.
Install a discharge pipe between the T&P valve discharge opening
and a suitable oor drain. Do not connect discharge piping
directly to the drain unless a 6” (15.2 cm) air gap is provided.
To prevent bodily injury, hazard to life, or property damage, the
relief valve must be allowed to discharge water in adequate
quantities should circumstances demand. If the discharge pipe is
not connected to a drain or other suitable means, the water ow
may cause property damage.
T&P Valve Discharge Pipe Requirements:
• Shall not be smaller in size than the outlet pipe size
of the valve, or have any reducing couplings or other
restrictions.
• Shall not be plugged or blocked.
• Shall not be exposed to freezing temperatures.
• Shall be of material listed for hot water distribution.
• Shall be installed so as to allow complete drainage of both
the Temperature-Pressure Relief Valve and the discharge
pipe.
• Must terminate a maximum of six inches above a oor
drain or external to the building. In cold climates, it is
recommended that the discharge pipe be terminated at an
adequate drain inside the building.
• Shall not have any valve or other obstruction between the
relief valve and the drain.
The type, size and location of the relief valves must be in
accordance with local codes. The locations of the relief valves
shown in the installation diagrams are typical. See pages 34-48.
The heater has a factory installed high temperature limit switch
and temperature and pressure relief valve.
Cold water lines to heater should be installed as shown in
order to minimize gravity circulation of hot water to building
cold water lines.
A listed temperature and pressure relief valve of adequate capacity
is installed on the heater. The locations shown in the installation
diagrams on pages 34-48 are typical.
The discharge opening of the temperature and pressure relief
valve must be piped to an open drain and should not be subject
to freezing temperatures.
Install in accordance with all local codes.
19
Page 20
INSTALLATION DIAGRAMS - TOP INLET/OUTLET USAGE
CODE RESTRICTIONS
Use of the top inlet water connection requires installation of an
inlet dip tube (refer to gure 19). The tube is supplied in the
heater. Follow caution labels if applying heat to this tting. Do
not allow pipe dope to contact the plastic tube during installation.
TUBE INLET INSTALLATION
FIGURE 19
Use of the top inlet water connection is not permitted on
installations in the state of North Carolina, due to the material
of the tube (Polypropylene). Where suc h co d e restrictio ns exist,
use only lower inlet tank connection. This may also require a
heat trap - check local codes. The “Top Outlet” connection
may still be used on these applications. Plug or cap all unused
openings in the tank before lling with water.
TEMPERATURE SETTING SHOULD NOT EXCEED
SAFE USE TEMPERATURE AT FIXTURES. SEE WATER
TEMPERATURE CONTROL AND MIXING VALVE WARNING
ON PAGE 12. IF HIGHER PREHEAT TEMPERATURES ARE
NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT,
ADD AN ANTI-SCALD VALVE FOR HOT WATER SUPPLIED
TO FIXTURES.
20
Page 21
HEATER WIRING
All electrical work must be installed in accordance with the latest version of the National Electrical Code ANSI/NFPA No. 70 and
must conform to all local code authority having jurisdiction. AN ELECTRICAL GROUND IS REQUIRED TO REDUCE RISK OF
ELECTRICAL SHOCK OR POSSIBLE ELECTROCUTION.
If any of the original wire as supplied with the appliance must be replaced, use only type 105°C thermoplastic or equivalent and 2500C
type F must be used for the ame sensor and igniter leads.
The controls of this water heater are polarity sensitive. Be certain to properly wire the hot and neutral connections.
FIGURE 20
21
Page 22
GAS PIPING
Contact your local gas service company to ensure that adequate
gas service is available and to review applicable installation
codes for your area.
Size the main gas line in accordance with Table 9. The gures shown
are for straight lengths of pipe at 0.5 in. W.C. pressure drop, which is
considered normal for low pressure systems. Note: Fittings such as
elbows, tees and line regulators will add to the pipe pressure drop.
Also refer to the latest version of the National Fuel Gas Code.
Schedule 40 Metallic Pipe is the preferred material for the gas
line of this water heater. It is imperative to follow the sizing
recommendations in the latest version of the National Fuel Gas
Code if Corrugated Stainless Steel Tubing (CSST) is used as the
gas line for this water heater.
THE HEATER IS NOT INTENDED FOR OPERATION AT HIGHER
THAN 14.0” W.C.- NATURAL GAS, (1/2 POUND PER SQUARE
INCH GAGE) SUPPLY GAS PRESSURE. EXPOSURE TO
HIGHER SUPPLY PRESSURE MAY CAUSE DAMAGE TO THE
GAS VALVE WHICH COULD RESULT IN FIRE OR EXPLOSION.
IF OVERPRESSURE HAS OCCURRED SUCH AS THROUGH
IMPROPER TESTING OF GAS LINES OR EMERGENCY
MALFUNCTION OF THE SUPPLY SYSTEM, THE GAS VALVE
MUST BE CHECKED FOR SAFE OPERATION. MAKE SURE THAT
THE OUTSIDE VENTS ON THE SUPPLY REGULATORS AND THE
SAFETY VENT VALVES ARE PROTECTED AGAINST BLOCKAGE.
THESE ARE PARTS OF THE GAS SUPPLY SYSTEM, NOT THE
HEATER. VENT BLOCKAGE MAY OCCUR DURING ICE STORMS.
TABLE 9 - GAS SUPPLY PIPE LENGTH (FEET)
Schedule 40 metallic
pipe nominal dia.
3/4" - 10
1" 10 40
1 1/4" 60 150
1 1/2" 150 350
2" 200 400
2 1/2" 200 400
Natural Gas: 0.60 Specic Gravity, 0.50"W.C. pressure drop
Propane Gas: 1.50 Specic Gravity, 0.50"W.C. pressure drop
MAXIMUM EQUIVALENT PIPE LENGTH (FEET)
IT IS IMPORTANT TO GUARD AGAINST GAS VALVE FOULING
FROM CONTAMINANTS IN THE GAS WAYS. SUCH FOULING
MAY CAUSE IMPROPER OPERATION, FIRE OR EXPLOSION.
IF COPPER SUPPLY LINES ARE USED THEY MUST BE
INTERNALLY TINNED AND CERTIFIED FOR GAS SERVICE.
BEFORE ATTACHING THE GAS LINE, BE SURE THAT ALL GAS
PIPE IS CLEAN ON THE INSIDE.
TO TRAP ANY DIRT OR FOREIGN MATERIAL IN THE GAS
SUPPLY LINE, A DIRT LEG (SOMETIMES CALLED SEDIMENT
TRAP OR DRIP LEG) MUST BE INCORPORATED IN THE
PIPING (SEE FIG. 21). THE DIRT LEG MUST BE READILY
ACCESSIBLE AND NOT SUBJECT TO FREEZING CONDITIONS.
INSTALL IN ACCORDANCE WITH RECOMMENDATIONS OF
SERVING GAS SUPPLIERS. REFER TO THE LATEST VERSION
OF THE NATIONAL FUEL GAS CODE.
To prevent damage, care must be taken not to apply too much
torque when attaching gas supply pipe to gas valve inlet.
Apply joint compounds (pipe dope) sparingly and only to the male
threads of pipe joints. Do not apply compounds to the rst two threads.
Use compounds resistant to the action of liqueed petroleum gases.
BEFORE PLACING THE HEATER IN OPERATION, CHECK FOR
GAS LEAKAGE. Use soap and water solution or other material
acceptable for the purpose in locating the leaks. DO NOT USE
MATCHES, CANDLES, FLAME OR OTHER SOURCES OF
IGNITION FOR THIS PURPOSE.
500,000 btu/hr input rate
Natural Gas Propane
DISCONNECT THE HEATER AND ITS MANUAL GAS SHUTOFF
VALVE FROM THE GAS SUPPLY PIPING SYSTEM DURING ANY
SUPPLY PRESSURE TESTING EXCEEDING 1/2 PSIG. GAS
SUPPLY LINE MUST BE CAPPED WHEN DISCONNECTED
FROM THE HEATER. FOR TEST PRESSURES OF 1/2 PSIG OR
LESS THE APPLIANCE NEED NOT BE DISCONNECTED, BUT
MUST BE ISOLATED FROM THE SUPPLY PRESSURE TEST
BY CLOSING THE MANUAL GAS SHUTOFF VALVE.
GAS PIPING AND DIRT LEG INSTALLATION
FIGURE 21
PURGING
Gas line purging is required with new piping or systems in which
air has entered.
PURGING SHOULD BE PERFORMED BY PERSONS
EXPERIENCED IN THIS TYPE GAS SERVICE. TO AVOID RISK
OF FIRE OR EXPLOSION, PURGE DISCHARGE MUST NOT
ENTER CONFINED AREAS OR SPACES WHERE IGNITION CAN
OCCUR. THE AREA MUST BE WELL VENTILATED AND ALL
SOURCES OF IGNITION MUST BE INACTIVATED OR REMOVED.
GAS METER SIZE — NATURAL GASES ONLY
Be sure the gas meter has sufcient capacity to supply the full
rated gas input of the water heater as well as the requirements of
all other gas red equipment supplied by the meter. If gas meter
is too small, ask the gas company to install a larger meter having
adequate capacity.
GAS PRESSURE REGULATOR
The gas pressure regulator is built into the gas valve and is equipped to
operate on the gas specied on model and rating plate. The regulator
is factory adjusted to deliver gas to burner at correct water column
pressure allowing for a nominal pressure drop through the controls.
The minimum gas supply pressure for input adjustment must not
be less than 4.5” W.C. (1.12 kPa) for natural gas or 11.0"W.C.
(2.74 kPa) for propane gas.
Do not subject the combination gas valve to inlet gas
pressures of more than 14.0” W.C. (3.48 kPa). A service regulator
is necessary if higher gas pressures are encountered.
The manifold gas pressure specied in Table 10 refers to the gas
pressure measured at the pressure tap of the automatic gas valve
when the burners are ring.
TABLE 10 - MANIFOLD GAS PRESSURE IN INCHES OF
WATER COLUMN (ALL MODELS*)
TYPE OF GAS
NATURAL PROPANE
3.5 (0.87 kPa) 10.0 (2.49 kPa)
22
Page 23
OPERATION
IMPORTANT
A qualied person must perform the initial ring of the heater. At
this time the user should not hesitate to ask the individual any
questions which they may have in regard to the operation and
maintenance of the unit.
An Operational Checklist is included on page 33 of this manual.
By using this checklist the user may be able to make minor
operational adjustments and avoid unnecessary service calls.
However, the user should not attempt repairs which are not listed
under the USER column.
GENERAL
NEVER OPERATE THE HEATER WITHOUT FIRST BEING
CERTAIN IT IS FILLED WITH WATER AND A TEMPERATURE
AND PRESSURE RELIEF VALVE IS INSTALLED IN THE
RELIEF VALVE OPENING OF THE HEATER.
SHOULD OVERHEATING OCCUR OR THE GAS SUPPLY FAIL
TO SHUT OFF, TURN OFF THE MANUAL GAS CONTROL
VALVE TO THE APPLIANCE.
Before proceeding with the operation of the unit make sure
the water heater and system are lled with water and all air is
expelled.
FILLING
1. Close the heater drain valve by turning handle clockwise.
2. Open a nearby hot water faucet to permit the air in the system
to escape.
3. Fully open the cold water inlet pipe valve allowing the heater
and piping to be lled.
4. Close the hot water faucet as water starts to ow.
5. The heater is ready to be operated.
THE GAS VALVE MUST HAVE BEEN IN THE OFF POSITION
FOR AT LEAST 5 MINUTES. This waiting period is an
important safety step. Its purpose is to permit gas that may
have accumulated in the combustion chamber to clear. IF YOU
DETECT GAS ODOR AT THE END OF THIS PERIOD DO NOT
PROCEED WITH LIGHTING. RECOGNIZE THAT GAS ODOR,
EVEN IF IT SEEMS WEAK, MAY INDICATE PRESENCE OF
ACCUMULATED GAS SOMEPLACE IN THE AREA WITH
RISK OF FIRE OR EXPLOSION. SEE THE FRONT PAGE FOR
STEPS TO BE TAKEN.
All gas and water lines must be leak tested and open.
Read SEQUENCE OF OPERATION section of this manual prior
to lighting and operating this appliance.
With above conditions satised, start the unit in accordance with
the instructions on the operating label attached to the heater. For
your convenience a copy of the instructions are shown on page
24. Each heater is equipped with an ignition control board. The
controller will try three times to light the main burner before going
into lockout. After the controller tries three times, it will wait one
hour before trying to light the unit again. This cycle will continue
until the main burners are ignited or the unit is shut down.
ADJUSTMENTS
ON INITIAL STARTUP SOME ADJUSTMENTS ARE NECESSARY.
1. CHECK MANIFOLD AND INLET GAS PRESSURES.
2. CYCLE CHECK - CHECK AT LEAST ONE BURNER
OPERATION - WHEN THERMOSTAT IS SATISFIED,
BURNER WILL SHUT OFF AND INDUCER WILL STOP
RUNNING. ON CALL FOR HEAT - THE INDUCER WILL
COME ON AND CLOSE THE PRESSURE SWITCH AND THE
IGNITION SEQUENCE DESCRIBED ABOVE WILL BEGIN,
SEE “SEQUENCE OF OPERATION”.
SEQUENCE OF OPERATION
The following information will describe the Sequence of Operation
for this appliance.
1. Switch power on to unit.
2. Thermostat calls for heat.
3. Ignition Control Board performs diagnostic check on system
components.
4. On completion of diagnostics check, the Ignition Control Board
sends signal to Exhaust Inducer.
5. Exhaust Inducer begins drawing air through appliance closing
the Prover Switch.
6. On completion of Prover Switch engagement, the Ignition
Control Board begins the ignition cycle.
7. The Ignition Control Board provides power to the Silicon
Nitride Ignitor.
8. The Silicon Nitride Ignitor heats up for approximately 17 to
20 seconds.
9. At the end of Silicon Nitride Ignitor’s warm-up, the Ignition
Control Board opens the Gas Valve.
10. From the time the Gas Valve opens, the Ignition Control
Board waits 3 seconds and then shuts off power to the Silicon
Nitride Ignitor.
11. From the time the Silicon Nitride Ignitor’s power is shut off,
the Ignition Control Board waits 3 more seconds to monitor
the Flame Sensor.
12. If the Flame Sensor does not detect a strong enough ame,
the Ignition Control Board shuts off the Gas Valve and allows
the Exhaust Inducer to purge the unit for 20 seconds. At that
time, the Ignition Control Board restarts with step 7. It will try
and ignite the main burners 2 more times. If the unit does not
light, the Ignition Control Board will wait one hour and then
restart at step 3. This cycle will continue until the unit lights
or the power is shutoff to the unit.
13. If the Flame Sensor detects a strong ame, the Ignition Control
Board will allow the unit to operate until the thermostat is
satised.
14. Once the unit is satised, the Ignition Control Board will shut
off the Gas Valve and the unit will be in standby mode until
another call for heat is initiated by the thermostat.
See the ow chart on page 32 for more information.
23
Page 24
LIGHTING & OPERATION LABEL
FOR YOUR SAFETY READ BEFORE OPERATING
WARNING
A.
This appliance does not have a pilot. It is equipped with an ignition device which
automatically lights the burner. Do not try to light the burner by hand.
BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell
B.
next to the floor because some gas is heavier than air and will settle on the floor.
"WHAT TO DO 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 suppliers instructions.
If you do not follow these instructions exactly, a fire or explosion
may result causing property damage, personal injury, or loss of life.
OPERATING INSTRUCTIONS
1.
Set thermostat to lowest setting.
2.
Turn off all electric power to the appliance.
3.
This appliance is equipped with an ignition device which automatically lights
4.
the burner. Do not try to light the burner by hand.
5.
Push in gas control knobs slightly and turn clockwise to off.
Wait five(5) minutes to clear out any gas. If you then smell gas, STOP!.
6.
Follow "B" in the safety information above on this label. If you don't
smell gas, go on to next step.
Turn gas control knobs counterclockwise to "ON".
7.
Turn on all electric power to the appliance.
8.
Set thermostat to desired setting.
9.
If the appliance will not operate, follow the instructions "To Turn Off Gas To Appliance"
10.
and call your service technician or gas supplier.
STOP! Read the safety information above on this label.
GAS
CONTROL
KNOBS
If you cannot reach your gas supplier, call the fire department.
C.
Use only your hand to push in or turn the gas control knob. Never use tools. If
the knob will not push in or turn by hand, don't try to repair it. Call a qualified
service technician. Force or attempted repair may result in a fire or explosion.
D.
Do not use this appliance if any part has been under water. Immediately call a
qualified service technician to inspect the appliance and to replace any part of
the control system and any gas control which has been under water.
PSI
IN
PSI
IN
ON
OFF
ON
OFF
FLAMMABLE
FOR YOUR SAFETY READ BEFORE OPERATING
Set the thermostat to lowest setting.
1. 3.
Turn off all electric power to appliance if service is to be performed.
2.
FIGURE 22
Push in gas control knobs slightly and turn clockwise to "OFF". Do not force.
24
Page 25
CHECK VENTING
The following steps shall be followed with each appliance
connected to the venting system placed in operation, while any
other appliances connected to the venting system are not in
operation.
1. Seal any unused openings in the venting system.
2. Inspect the venting system for proper size and horizontal pitch,
as required in the National Fuel Gas Code, ANSI Z223.1or the
CAN/CGA B149 Installation Codes and these instructions.
Determine that there is no blockage or restriction, leakage,
corrosion and other deciencies which could cause an unsafe
condition.
3. So far as is practical, close all building doors and windows
and all doors between the space in which the water heater(s)
connected to the venting system are located and other spaces
of the building. Turn on all appliances not connected to the
venting system. Turn on all exhaust fans, such as range hoods
and bathroom exhausts, so they shall operate at maximum
speed. Close replace dampers.
4. Follow the lighting instruction. Place the water heater being
inspected in operation. Adjust thermostat so appliance shall
operate continuously.
5. Test for spillage at the burner level after 5 minutes of main
burner operation.
6. After it has been determined that each water heater connected
to the venting system properly vents when tested as outlined
above, return doors, windows, exhaust fans, replace dampers
and any other gas burning appliance to their previous conditions
of use.
7. If improper venting is observed during any of the above tests,
the venting system must be corrected.
FAILURE TO CORRECT BACK DRAFTS MAY CAUSE AIR
CONTAMINATION AND UNSAFE CONDITIONS.
• If the back draft cannot be corrected by the normal method or
if a suitable draft cannot be obtained, a blower type ue gas
exhauster must be employed to assure proper venting and
correct combustion.
CHECK THE IGNITER ASSEMBLY
At least once a year, check the igniter assembly, Figure 23, and
the main burner, Figure 24, for proper operation. Refer to the
following igniter assembly and main burner sections.
FIGURE 23
MAIN BURNER
The main burner, figure 24, should display the following
characteristics:
• Cause rapid ignition and carry across entire burner.
• Give reasonably quiet operation during ignition, burning, and
extinction.
• Cause no excessive lifting of ame from burner ports.
FIGURE 24
If the preceding burner characteristics are not evident, check for
accumulation of lint, scale or other foreign debris that restricts or
blocks the air openings to the burner or heater.
NOTE:
1. Remove main burners from unit.
2. Check that burner venturi and ports are free of foreign debris.
3. Clean burners with bristle brush and/or vacuum cleaner - DO
NOT distort burner ports or pilot location.
4. Reinstall burners in unit. Make sure front and rear of burners
are installed correctly in burner support brackets.
Also check for good ow of combustion and ventilating air to the
unit. Maintain a clear area around the heater at all times.
GAS VALVES
Figure 25 shows the type of combination manual gas control valve
and regulator used on these heaters.
If the gas valve becomes defective, repairs should not be
attempted. A new valve should be installed in place of the
defective one.
IGNITER ASSEMBLY
For access to igniter assembly, unfasten two screws to burner
cover and remove. Locate the burner with the igniter assembly
and remove screw holding burner to manifold. Slide burner out
to access igniter assembly.
Servicing of the igniter assembly includes keeping the igniter free
of lint, scale or any other foreign debris.
FIGURE 25
25
Page 26
CHECKING THE INPUT
For appliance installation locations with elevations above 2000
feet, refer to HIGH ALTITUDE INSTALLATIONS section of this
manual for input reduction procedure.
1. Attach a pressure gauge or a manometer to the manifold
pressure tap on the gas valve and refer to Table 3, page 8 for
correct manifold pressure.
2. Use this formula to “clock” the meter. Be sure that other gas
consuming appliances are not operating during this interval.
(3600/T) x H = Btuh
T = Time in seconds to burn one cubic foot of gas.
H = Btu’s per cubic foot of gas.
Btuh = Actual heater input.
Example: (Using SBD85500NE heater)
T = 7.56 seconds
H = 1050 Btu
Btuh = ?
MAINTENANCE
(3600/7.56) X 1050 = 500,000 Btuh (Compare with the
SBD85500NE model and rating.)
Should it be necessary to adjust the gas pressure to the burners
to obtain the full input rate, the steps below should be followed:
3. Remove the regulator adjustment sealing cap, g. 25, and adjust
the pressure by turning the adjusting screw with a screwdriver.
Clockwise to increase gas pressure and input rate.
Counterclockwise to decrease gas pressure and input rate.
4. “Clock” the meter as in step 2 above.
5. Repeat steps 3 and 4 until the specied input rate is achieved.
6. Turn the gas control knob to PILOT. Remove the pressure
gauge and replace the sealing cap and the threaded plug in
the pressure tap opening.
UNDER NO CIRCUMSTANCES SHOULD THE GAS INPUT
EXCEED THE INPUT SHOWN ON THE HEATER MODEL AND
RATING PLATE. OVERFIRING COULD RESULT IN DAMAGE
OR SOOTING OF THE HEATER.
VENTING SYSTEM
Examine the venting system every six months for obstructions
and/or deterioration of the vent piping.
Remove all soot or other obstructions from chimney which will
retard free draft.
REMOTE STORAGE TANK TEMPERATURE CONTROL
The water temperature in the remote storage tank (if used) is
controlled by the storage tank temperature control. The sensing
element is mounted in the hot water storage tank, see Water
Piping Diagram section.
A change in water temperature in the storage tank lower than
the tank temperature control setting will cause the sensor to
activate the circulating pump. The pump then circulates the water
through the heater where the thermostat senses the drop in water
temperature and activates main burner operation of the appliance.
If the storage tank temperature control is out of calibration, replace
with new control.
SHOULD OVERHEATING OCCUR OR THE GAS SUPPLY FAIL
TO SHUT OFF, TURN OFF THE MANUAL GAS CONTROL VALVE
TO THE APPLIANCE.
TEMPERATURE-PRESSURE RELIEF VALVE TEST
When checking the Temperature-Pressure Relief Valve operation,
make sure that (1) no one is in front of or around the outlet of the
Temperature-Pressure Relief Valve discharge line, and (2) that
the water discharge will not cause any property damage, as the
water may be extremely hot. Use care when operating valve as
the valve may be hot.
To check the relief valve, lift the lever at the end of the valve
several times, see Figure 26. The valve should seat properly and
operate freely.
If after manually operating the valve, it fails to completely reset
and continues to release water, immediately close the cold water
inlet to the water heater and drain the water heater according to
the Draining and Flushing instructions on page 27. Replace the
Temperature-Pressure Relief Valve with a properly rated/sized new
one, see Temperature-Pressure Relief Valve on pages 13-14 for
instructions on replacement.
It is recommended that the Temperature-Pressure Relief Valve
should be checked to ensure that it is in operating condition every
6 months.
FIGURE 26
If the Temperature-Pressure Relief Valve on the water heater
weeps or discharges periodically, this may be due to thermal
expansion.
NOTE: Excessive water pressure is the most common cause of
Temperature-Pressure Relief Valve leakage. Excessive water
system pressure is most often caused by "thermal expansion"
in a "closed system." See Closed Water Systems and Thermal
26
Page 27
Expansion on page 13. The Temperature-Pressure Relief Valve is
CAUTION
not intended for the constant relief of thermal expansion.
Temperature-Pressure Relief Valve leakage due to pressure build
up in a closed system that does not have a thermal expansion
tank installed is not covered under the limited warranty. Thermal
expansion tanks must be installed on all closed water systems.
DO NOT PLUG THE TEMPERATURE-PRESSURE RELIEF
VALVE OPENING. THIS CAN CAUSE PROPERTY DAMAGE,
SERIOUS INJURY OR DEATH.
HOT WATER ODOR
On occasion, hot water may develop a strong odor. If this occurs
drain the heater completely, ush thoroughly, and rell. If the problem
persists, chlorination of the heater and replacement of magnesium
anodes with aluminum anodes may correct the condition.
Occasionally water softener companies recommend removal of
heater anodes for odor reasons.
Unauthorized removal of the anode(s) will void the warranty. For
further information contact your dealer.
ANODE ROD INSPECTION
DRAINING AND FLUSHING
Burn harzard.
Hot water discharge.
Keep hands clear of drain
valve discharge.
It is recommended that the water heater storage tank be drained
and ushed every 6 months to reduce sediment buildup. The
water heater should be drained if being shut down during freezing
temperatures.
TO DRAIN THE WATER HEATER STORAGE TANK:
1. Turn off the electrical supply to the water heater.
2. Turn off the gas supply at the Main Gas Shutoff Valve if
the water heater is going to be shut down for an extended
period.
3. Ensure the cold water inlet valve is open.
4. Open a nearby hot water faucet and let the water run until
the water is no longer hot.
5. Close the cold water inlet valve to the water heater.
6. Connect a hose to the water heater drain valve and terminate
it to an adequate drain.
7. Open the water heater drain valve and allow all the water to
drain from the storage tank.
8. Close the water heater drain valve when all water in the
storage tank has drained.
9. Close the hot water faucet opened in Step 4.
10. If the water heater is going to be shut down for an extended
period, the drain valve should be left open.
Property Damage Hazard
Avoid water heater damage.
•
Inspection and replacement of anode rod required.
•
The heater tank is equipped with anode rods to provide corrosion
control. At least once a year the anode rods should be checked
to determine if replacement is necessary. Initially the anode rods
are approximately 7/8” in diameter with a 1/8” diameter steel core
wire running down the center of the anode material. THE ANODES
SHOULD BE REPLACED when the 1/8” diameter core wire is
visible as this means that the anode material has been expended
in the control of corrosion.
For models with top inlet and outlet, it is recommended that, before
removing the inner cover for cleaning, inspection or removal of
inner parts, you obtain two new nipple collars, part no. 9005783205.
The nipple collars on the heater will usually be damaged when
removed. New nipple collars will insure that the seal is such as to
prevent leakage of ue products when properly installed.
NOTE: Anode rod inspection may need to be made more frequently
in areas subject to acid rain that obtains their water supply from
surface water as the low pH will accelerate anode activity.
CAUTION: Close cold water inlet valve serving heater and open
nearby hot water faucet to relieve the pressure in the heater before
attempting to remove anode(s) for inspection.
TO FLUSH THE WATER HEATER STORAGE TANK:
1. Turn off the electrical supply to the water heater.
2. Ensure the cold water inlet valve is open.
3. Open a nearby hot water faucet and let the water run until
the water is no longer hot. Then close the hot water faucet.
4. Connect a hose to the drain valve and terminate it to an
adequate drain.
5. Ensure the drain hose is secured before and during the
entire ushing procedure. Flushing is performed with system
water pressure applied to the water heater.
6. Open the water heater drain valve to ush the storage tank.
7. Flush the water heater storage tank to remove sediment and
allow the water to ow until it runs clean.
8. Close the water heater drain valve when ushing is
completed.
9. Remove the drain hose.
10. Fill the water heater - see Filling The Water Heater in this
manual.
11. Turn on the electrical supply to place the water heater back
in operation.
12. Allow the water heater to complete several heating cycles to
ensure it is operating properly.
27
Page 28
RECOMMENDED PROCEDURE FOR PERIODIC REMOVAL OF LIME DEPOSITS FROM TANK TYPE COMMERCIAL WATER HEATERS
The amount of calcium carbonate (lime) released from water is
in direct proportion to water temperature and usage, see chart.
The higher the water temperature or water usage, the more lime
deposits are dropped out of the water. This is the lime scale
which forms in pipes, heaters and on cooking utensils.
Lime accumulation not only reduces the life of equipment but also
reduces efciency of the heater and increases fuel consumption.
The usage of water softening equipment greatly reduces the hardness
of the water. However, this equipment does not always remove all of
the hardness (lime). For this reason it is recommended that a regular
schedule for deliming be maintained.
The time between cleaning will vary from weeks to months
depending upon water conditions and usage.
The depth of lime buildup should be measured periodically.
Heaters equipped with cleanouts will have about 2" of lime
buildup when the level of lime has reached the bottom of the
cleanout opening. A schedule for deliming should then be set
up,based on the amount of time it would take for a 1" buildup
of lime. It is recommended that the water heater initially be
inspected after 6 months.
Example 1:
The initial inspection after 6 months shows 1/2" of lime accumulation.
Therefore, the heater should be delimed once a year.
Example 2:
The initial inspection after 6 months shows 2" of lime accumulation.
Therefore, the heater should be delimed every 3 months.
NOTE: Un•Lime is not available for use in Canada.
Hydrochloric base acids are not recommended for use on glass
lined tanks.
Observe handling instructions on label of product being used.
TANK CLEANOUT PROCEDURE
The following practices will ensure longer life and enable the unit
to operate at its designed efciency:
1. Once a month the heater should be ushed. Open the drain
valve and allow two gallons of water to drain from the heater.
Inlet water valve should remain open to maintain pressure in
tank.
2. A cleanout opening is provided for periodic cleaning of the
tank. Gas must be shut off and heater drained before opening
cleanout.
To clean heater through cleanout opening, proceed as follows:
3. Drain heater.
4. Remove outer cover plate from lower side of heater jacket.
5. Remove six (6) hex head screws securing tank cleanout plate
and remove plate.
6. Remove lime, scale, or sediment using care not to damage
the glass lining.
7. Inspect cleanout plate gasket, if new gasket is required,
replace with part no. 9004099215.
8. Install cleanout plate. Be sure to draw plate up tight by
tightening screws securely.
9. Replace outer jacket cover plate.
In some water areas the sediment might not be removed by this
method and may result in the water heater making rumbling or
boiling noises. To dissolve and remove these more stubborn
mineral deposits, A. O. Smith UN•LIME Professional Delimer
should be used.
DELIMING USING FLO-JUG METHOD
UN•LIME in the 5 gallon size is recommended for deliming of all
models. Contact your local A.O. Smith dealer, distributor or, A.O.
Smith Water Products Company:
Telephone: (800) 433-2545
Fax: (800) 433-2515
Website: www.hotwater.com/parts
Prepare the Water Heater
To delime the water heater using the Flo-Jug method, rst
prepare the heater for deliming.
FIGURE 27.
DELIMING SOLVENTS
A. O. Smith recommends the use of UN•LIME for deliming. UN•LIME
is a patented food grade acid which is safe to handle and does not
create the harmful fumes which are associated with other products.
UN•LIME may be obtained from your dealer, distributor or A. O.
Smith Product Service Division. Order Part Number 9005416105,
1 gallon, packed 4 gallons per case or Part Number 9005417105,
5 gallon container.
Explosion Hazard
Flammable hydrogen gases
may be present.
Keep all ignition sources away
from faucet when turning on
hot water.
Do not smoke or have open ame or sparks in vicinity of heater.
Do not mix UN•LIME with other chemicals. Do not allow contact
with magnesium, aluminum or galvanized metals.
28
Page 29
Chemical Hazard
• Product contains phosphoric acid.
• Keep out of reach of children.
• Use rubber or neoprene gloves.
UN•LIME contains phosphoric acid. In case of external contact,
ush with cool water. If irritation persists, get medical attention. If
swallowed, give 1 or 2 glasses of water or milk and call physician.
Get immediate medical attention for contact with eyes. Keep out
of reach of children.
NOTE: THE USE OF RUBBER OR NEOPRENE GLOVES IS
RECOMMENDED, ESPECIALLY IF YOU HAVE ANY OPEN
SORES OR CUTS TO AVOID UNNECESSARY IRRITATION
OR DISCOMFORT.
1. Turn off fuel and/or power supply to heater. Also, turn off power
to any electrical device or equipment, which is attached, or
part of the system.
2. Open hot water side of faucet closest to heater and allow
water to run until it is cool enough to handle safely.
3. Close cold water inlet valve to heater.
4. Connect hose to drain valve at bottom of heater and start
draining heater into suitable oor drain area.
5. Remove relief valve while heater is draining. NOTE: Do not
replace relief valve until deliming is completed. Relief valve
opening will also act as a vent in case of possible contact
between the delimer and the anode rod(s), which may
produce ammable hydrogen-air mixtures.
6. If relief valve appears to be limed-up, place it in a clean glass or
plastic container adequate in size so that you can pour enough
UN•LIME® into the container to cover the valve and allow
space for foaming. When foaming stops, run fresh cool water
into the container and rinse the relief valve for a few minutes.
7. If heater does not drain completely after a reasonable length
of time, turn off the main water supply valve to stop water from
entering the tank due to a by-pass problem or defective cold
water inlet valve. Also, check for clogged drain valve opening.
Heater must be completely drained before introducing UN•LIME.
8. Remove the cleanout cover and place a clean plastic bucket
next to the cleanout opening.
Partially open the cold water inlet valve to allow time to
accomplish the following and then close the valve.
While the water is being run through the tank, insert a stiff
wire, copper tube attened at one end or an opened wire coat
hanger through the cleanout opening and scrape out any
loose deposits of scale or sediment. This is an economical
way to avoid unnecessary usage of the deliming solution.
Repeat the opening and closing of the cold water inlet valve
as necessary but be sure the heater is completely drained
when ready to introduce the UN•LIME.
Upon completion, reinstall the cleanout cover and use a new
cleanout cover gasket (part number 9004099215).
Remove the drain valve.
9. Install the long plastic male adapter insert tting into the drain
valve opening of heater after applying Teon tape or paste to
threads. Tighten rmly by hand and use wrench or adjustable
pliers to check for secure connection. Do not over tighten to
avoid damage to threads and ttings.
Prepare the Up-N-Down Transfer Kit
The next step is the preparation of the Up-N-Down Transfer Kit,
if you have not already done so:
1. With the 5 gallon Up-N-Down container in the vertical position,
unscrew the plastic vent cap in the handle and pierce the
plastic membrane over the vent boss under the cap to allow
the container to vent.
Note: If your container does not have the vent cap and vent
boss, drill a 3/16” hole in the handle. When you have nished
deliming you will be able to plug this drilled vent with the
stainless steel screw that is supplied with the kit.
2. Remove the container’s cap and cut the plastic membrane
located in the 3/4” IPT opening in the cap. Take care to not
damage the threads.
3. Find the 3/4” male adapter, apply teon tape to the threaded
end and screw it into the 3/4” IPT opening in the cap.
4. Put cap with male adapter back on the container and slide
3/4” hose over end of male adapter and fasten in place using
hose clamp provided.
Delime using Flo-Jug Method
5. Slide the hose clamp over end of hose and slide hose over the
male adapter in the water heater drain opening and secure in
place using hose clamp.
6. Lift container to the “Pour” Position, see Figure 28, being
careful to keep the vent in the handle above the liquid level
and pour the UN•LIME into the heater.
7. Lower container, you may have to place the container on its
empty carton to prevent the UN•LIME from owing back into
the container.
8. Let UN•LIME remain in the heater for 5 minutes and then
lower the container to the “Drain” Position, see Figure 28.
9. Deliming activity is indicated by foaming on the surface of the
UN•LIME. If there is deliming activity, repeat steps 6 thru 8.
Normally, lime removal will be completed within one hour.
Severe build-up of lime may take longer than an hour to complete
descaling.
Note: To check UN•LIME for continued use, place some scale
or white chalk in a glass with a small amount of UN•LIME. If
the material is vigorously dissolved by the UN•LIME, it can be
reused; if not, the UN•LIME should be replaced.
FIGURE 28.
29
Page 30
IGNITION MODULE SYSTEM
Before calling your service agent, the following checklist should
be examined to eliminate obvious problems from those requiring
replacement or servicing.
• Check that “main manual gas shutoff valve” is fully open and
that gas service has not been interrupted.
• Check that after following the appliance OPERATING
INSTRUCTIONS, the “Top Knob” of the appliance gas valve
is in “ON” position.
• Check electrical supply to the appliance for possible blown
(or tripped) fusing or power interruption. Also check the 3
amp fuse on the front of the digital thermostat (Fig. 2).
• Is the water temperature in tank below the thermostat dial
setting on the appliance thermostat (calling for heat)?
• It is possible that the high limit (E.C.O.) has functioned to
shut off the appliance. See High Limit page 7 - High Limit
Switch for reset procedure. Contact your service agent if limit
continues to function to shut off appliance.
SERVICE
SYSTEM DIAGNOSTICS
Your water heater is equipped with an ignition module that
incorporates a diagnostic system to assist in troubleshooting the
appliance. The indicator codes on the ignition module are as follows:
TABLE 11:
1 FLASH System lockout (retries or cycles exceeded)
2 FLASHES Pressure switch stuck close
3 FLASHES Pressure switch stuck open
4 FLASHES Open on high temperature limit switch (eco)
6 FLASHES 115 volt AC power reversed (check polarity)
7 FLASHES
8 FLASHES Check ignitor
continuous ash -> continuous ame sensed > 5 seconds without
gas valve
continuous on -> internal control failure - replace ignition control
module.
Use this diagnostic system in conjunction with the “OPERATIONAL
CHECKLIST” and the “SEQUENCE OF OPERATION” to
troubleshoot the appliance.
Low ame sense signal (make sure ame sensor is in
burner ame)
The installer may be able to observe and correct certain problems
which may arise when the unit is put into operation. HOWEVER,
it is recommended that only qualied service agents, using
appropriate test equipment, be allowed to service the heater.
As preliminary step, check wiring against diagram, check for
grounded, broken or loose wires. Check all wire ends to be sure
that they are making good contact.
FOR YOUR INFORMATION
START UP CONDITIONS
SMOKE/ODOR
It is not uncommon to experience a small amount of smoke and
odor during the initial start-up. This is due to burning off of oil
from metal parts, and will disappear in a short while.
STRANGE SOUNDS
Possible noises due to expansion and contraction of some metal
parts during periods of heat-up and cool-down do not necessarily
represent harmful or dangerous conditions.
Condensation causes sizzling and popping within the burner area
during heating and cooling periods and should be considered
normal. See “Condensation” in this manual.
CONDENSATION
Whenever the water heater is lled with cold water, some
condensate will form while the burner is on. A water heater may
appear to be leaking when in fact the water is condensation.
This usually happens when:
a. A new water heater is lled with cold water for the rst time.
b. Burning gas produces water vapor in water heaters,
particularly high efciency models where ue temperatures
are lower.
c. Large amounts of hot water are used in a short time and the
rell water in the tank is very cold.
ELECTRICAL SERVICING
LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN
SERVICING CONTROLS. WIRING ERRORS CAN CAUSE
IMPROPER AND DANGEROUS OPERATION.
VERIFY PROPER OPERATION AFTER SERVICING.
Moisture from the products of combustion condense on the cooler
tank surfaces and form drops of water which may fall onto the
burner or other hot surfaces to produce a “sizzling” or “frying” noise.
OPERATIONAL CONDITIONS
SMELLY WATER
The water heater has at least one anode rod for corrosion
protection of the tank. Certain water conditions will cause a
reaction between this rod and the water. The most common
complaint associated with the anode rod is one of a “rotten egg
smell” in the hot water. The smell is a result of four factors which
must all be present for the odor to develop:
a. A concentration of sulfate in the supply water.
b. Little or no dissolved oxygen in the water.
c. A sulfate reducing bacteria which has accumulated
within the water heater (this harmless bacteria is
nontoxic to humans).
d. An excess of active hydrogen in the tank. This is caused
by the corrosion protective action of the anode.
Smelly water may be eliminated or reduced in some water heater
models by replacing the anode(s) with one of less active material,
and then chlorinating the water heater tank and all water lines.
Contact the local water heater supplier or service agency for
30
Page 31
further information regarding anode replacement and this
chlorination treatment.
If the smelly water persists after the anode replacement and
chlorination treatment, we can only suggest that chlorination or
aeration of the water supply be considered to eliminate the water
problem.
Do not remove the anode leaving the tank unprotected. By doing
so, all warranty on the water heater tank is voided.
“AIR” IN HOT WATER FAUCETS
HYDROGEN GAS: Hydrogen gas can be produced in a hot
water system that has not been used for a long period of time
(generally two weeks or more). Hydrogen gas is extremely
ammable and explosive. To prevent the possibility of injury
under these conditions, we recommend the hot water faucet,
located farthest away, be opened for several minutes before
any electrical appliances which are connected to the hot water
system are used (such as a dishwasher or washing machine). If
hydrogen gas is present, there will probably be an unusual sound
similar to air escaping through the pipe as the hot water faucet
is opened. There must be no smoking or open ame near the
faucet at the time it is open.
HIGH WATER TEMPERATURE SHUT OFF SYSTEM
This water heater is equipped with an automatic reset type high
limit (Energy Cutoff) sensor. The high limit switch interrupts
the main burner gas ow should the water temperature reach
203°F (95°C).
The high limit will automatically reset when the water temperature
drops below 120°F (49°C). After cooling the tank temperature,
turn off the water heater for at least 10 seconds by using the
switch on front of the control box. Turn on the water heater. If
this fails to correct the problem, contact your plumber or service
representative.
31
Page 32
SEQUENCE OF OPERATION FLOW CHART
Description of this ow chart can be found in the “SEQUENCE OF OPERATION” section found on page 23.
FIGURE 29
32
Page 33
OPERATIONAL CHECKLIST
COMPLAINT CAUSE
Thermostat set too low.
*Water not hot enough
*Insufcient hot water
*See WATER TEMPERATURE
CONTROL WARNING (on page
12).
Water temperature too hot. Thermostat set too high. Set thermostat to a lower setting.
Heater makes sounds: sizzling.
Rumbling.
Ticking or metallic sounds.
Pounding.
Combustion noises.
Water leaks.
Gas odors.
Upper and/or lower temperature
probe out of calibration.
Thermostat set too low.
Upper and/or lower temperature
probe out of calibration.
Main manual gas shutoff valve
partially closed.
Heater too small for demand.
Heater recovery is slower. Call service agent
Condensation on outside of
tank, normal.
Sediment accumulation on
bottom of tank.
Expansion and contraction normal.
Air chambers in piping have
become waterlogged.
Too much primary air. Call service agent.
Overred heater; Incorrect
burners or orice for type of gas
used.
Drain valve not closed tightly.
Possible condensation if tank
is undersized or stored water is
below 110 degrees.
If leakage source cannot be
corrected or identied, call
service agent.
Heater is over red
Possible gas leaks.
Set thermostat dial to a higher
temperature
Call service agent
Set thermostat dial to a higher
temperature
Call service agent
Open main manual gas shutoff
valve to fullest extent.
Space usage to give heater time
to restore water temperature.
Drain a quantity of water through
drain valve. If rumbling persists,
call a service agent.
Drain piping system and rell.
Heater must be off while this is
being done.
Call service agent. Check and correct as necessary.
If drain valve cannot be closed
tightly, replace.
Increase tank temperature
setting (have service agent add
a mixing valve if setting will be
above 120 degrees).
Shut off gas supply to heater
and close cold water inlet valve
to heater.
Shut off gas supply to heater
and call a service agent.
Shut off gas supply to heater
and call gas company at once
USER SERVICE AGENT
REMEDY
Check continuity and resistance (Ohms)
of upper and lower temperature probes.
Replace probes if out of specication.
Check continuity and resistance (Ohms)
of upper and lower temperature probes.
Replace probes if out of specication.
Check gas input. If incorrect, adjust gas
pressure or replace burner orices.
Delime heater.
Repair or in case of suspected tank
leakage, be certain to conrm before
replacing heater.
Check for sooted ue passage.
Check for obstructed vent line.
Check backdraft or lack of draft
33
Page 34
WATER PIPING DIAGRAMS
FINISHED
FLOOR
HOT WATER
TO FIXTURES
COLD WATER
SUPPLY
EXPANSION
TANK
ALT. COLD WATER
CONNECTION
HOT WATER RETURN
FROM FIXTURES
PIPE T&P TO
OPEN DRAIN
FULL PORT BALL VALVE
CHECK VALVE
LEGEND
TEMPERATURE & PRESSURE
RELIEF VALVE
PRESSURE RELIEF VALVE
TEMPERATURE GAGE
WATER FLOW SWITCH
CIRCULATING PUMP
TANK TEMPERATURE CONTROL
DRAIN
MULTI FLUE - (1 UNIT) WITH VERTICAL STORAGE TANK
WARNING: THIS DRAWING SHOWS SUGGESTED
PIPING CONFIGURATION AND OTHER DEVICES;
CHECK WITH LOCAL CODES AND ORDINANCES
FOR ADDITIONAL REQUIREMENTS.
34
NOTES:
1. Preferred piping diagram.
2. The temperature and pressure relief valve setting shall not exceed pressure rating of any component in the system.
3. Service valves are shown for servicing unit. However, local codes shall govern their usage.
4. The Tank Temperature Control should be wired to and control the pump between the water heater(s) and the storage tank(s).
5. The water heater ’s operating thermostat should be set 5 degrees F higher than the Tank Temperature Control.
Page 35
FULL PORT BALL VALVE
FINISHED
FLOOR
HOT WATER TO FIXTURES
COLD WATER
SUPPLY
HOT WATER
RETURN FROM
FIXTURES
ALTERNATE
LOCATION
CIRCULATING PUMP
EXPANSION
TANK
PIPE T&P TO
OPEN DRAIN
CHECK VALVE
TEMPERATURE GAGE
WATER FLOW SWITCH
LEGEND
TEMPERATURE & PRESSURE
RELIEF VALVE
PRESSURE RELIEF VALVE
CIRCULATING PUMP
TANK TEMPERATURE CONTROL
DRAIN
WARNING: THIS DRAWING SHOWS SUGGESTED
PIPING CONFIGURATION AND OTHER DEVICES;
CHECK WITH LOCAL CODES AND ORDINANCES
MULTI FLUE - (1 UNIT) WITH HORIZONTAL STORAGE TANK
FOR ADDITIONAL REQUIREMENTS.
NOTES:
1. Preferred piping diagram.
2. The temperature and pressure relief valve setting shall not exceed pressure rating of any component in the system.
3. Service valves are shown for servicing unit. However, local codes shall govern their usage.
4. The Tank Temperature Control should be wired to and control the pump between the water heater(s) and the storage tank(s).
5. The water heater’s operating thermostat should be set 5 degrees F higher than the Tank Temperature Control.
35
Page 36
FULL PORT BALL VALVE
TEMPERED
WATER
RETURN
TEMPERED
WATER
OUTLET
HOT
WATER
OUTLET
HOT
WATER
RETURN
COLD WATER
SUPPLY
COLD
HOT
EXPANSION
TANK
PIPE T&P TO
OPEN DRAIN
CHECK VALVE
LEGEND
TEMPERATURE & PRESSURE
RELIEF VALVE
PRESSURE RELIEF VALVE
TEMPERATURE GAGE
WATER FLOW SWITCH
CIRCULATING PUMP
TANK TEMPERATURE CONTROL
DRAIN
MULTI FLUE - (1 UNIT) WITH MIXING VALVE TWO TEMPERATURE
WARNING: THIS DRAWING SHOWS SUGGESTED
PIPING CONFIGURATION AND OTHER DEVICES;
CHECK WITH LOCAL CODES AND ORDINANCES
FOR ADDITIONAL REQUIREMENTS.
36
NOTES:
1. Preferred piping diagram.
2. The temperature and pressure relief valve setting shall not exceed pressure rating of any component in the system.
3. Service valves are shown for servicing unit. However, local codes shall govern their usage.
4. The Tank Temperature Control should be wired to and control the pump between the water heater(s) and the storage tank(s).
Page 37
FULL PORT BALL VALVE
HOT WATER
TO FIXTURES
COLD WATER
SUPPLY
HOT WATER
RETURN
EXPANSION
TANK
PIPE T&P TO
OPEN DRAIN
PIPE T&P TO
OPEN DRAIN
CHECK VALVE
LEGEND
TEMPERATURE & PRESSURE
RELIEF VALVE
PRESSURE RELIEF VALVE
TEMPERATURE GAGE
CIRCULATING PUMP
WATER FLOW SWITCH
TANK TEMPERATURE CONTROL
DRAIN
MULTI FLUE - (2 UNITS)
WARNING: THIS DRAWING SHOWS SUGGESTED
PIPING CONFIGURATION AND OTHER DEVICES;
CHECK WITH LOCAL CODES AND ORDINANCES
FOR ADDITIONAL REQUIREMENTS.
NOTES:
1. Preferred piping diagram.
2. The temperature and pressure relief valve setting shall not exceed pressure rating of any component in the system.
3. Service valves are shown for servicing unit. However, local codes shall govern their usage.
4. The Tank Temperature Control should be wired to and control the pump between the water heater(s) and the storage tank(s).
37
Page 38
FULL PORT BALL VALVE
FINISHED
FLOOR
COLD WATER
SUPPLY
HOT WATER
TO FIXTURES
ALTERNATE
COLD WATER
CONNECTION
HOT WATER
RETURN
EXPANSION
TANK
PIPE T&P TO
OPEN DRAIN
PIPE T&P TO
OPEN DRAIN
CHECK VALVE
LEGEND
TEMPERATURE & PRESSURE
RELIEF VALVE
PRESSURE RELIEF VALVE
TEMPERATURE GAGE
WATER FLOW SWITCH
CIRCULATING PUMP
TANK TEMPERATURE CONTROL
DRAIN
MULTI FLUE - (2 UNITS) WITH VERTICAL STORAGE TANK
WARNING: THIS DRAWING SHOWS SUGGESTED
PIPING CONFIGURATION AND OTHER DEVICES;
CHECK WITH LOCAL CODES AND ORDINANCES
FOR ADDITIONAL REQUIREMENTS.
38
NOTES:
1. Preferred piping diagram.
2. The temperature and pressure relief valve setting shall not exceed pressure rating of any component in the system.
3. Service valves are shown for servicing unit. However, local codes shall govern their usage.
4. The Tank Temperature Control should be wired to and control the pump between the water heater(s) and the storage tank(s).
5. The water heater’s operating thermostat should be set 5 degrees F higher than the Tank Temperature Control.
Page 39
FULL PORT BALL VALVE
FINISHED
FLOOR
COLD WATER
SUPPLY
HOT WATER
TO FIXTURES
ALTERNATE
COLD WATER
CONNECTION
HOT WATER
RETURN
EXPANSION
TANK
PIPE T&P TO
OPEN DRAIN
PIPE T&P TO
OPEN DRAIN
CHECK VALVE
LEGEND
TEMPERATURE & PRESSURE
RELIEF VALVE
PRESSURE RELIEF VALVE
TEMPERATURE GAGE
CIRCULATING PUMP
WATER FLOW SWITCH
TANK TEMPERATURE CONTROL
DRAIN
MULTI FLUE - (2 UNITS) WITH VERTICAL STORAGE TANK
WARNING: THIS DRAWING SHOWS SUGGESTED
PIPING CONFIGURATION AND OTHER DEVICES;
CHECK WITH LOCAL CODES AND ORDINANCES
FOR ADDITIONAL REQUIREMENTS.
39
NOTES:
1. Preferred piping diagram.
2. The temperature and pressure relief valve setting shall not exceed pressure rating of any component in the system.
3. Service valves are shown for servicing unit. However, local codes shall govern their usage.
4. The Tank Temperature Control should be wired to and control the pump between the water heater(s) and the storage tank(s).
5. The water heater’s operating thermostat should be set 5 degrees F higher than the Tank Temperature Control.
Page 40
FULL PORT BALL VALVE
FINISHED
FLOOR
HOT WATER TO FIXTURES
COLD WATER
SUPPLY
HOT WATER
RETURN FROM
FIXTURES
ALTERNATE
LOCATION
EXPANSION
TANK
PIPE T&P TO
OPEN DRAIN
PIPE T&P TO
OPEN DRAIN
CHECK VALVE
TEMPERATURE GAGE
WATER FLOW SWITCH
LEGEND
TEMPERATURE & PRESSURE
RELIEF VALVE
PRESSURE RELIEF VALVE
CIRCULATING PUMP
TANK TEMPERATURE CONTROL
DRAIN
MULTI FLUE - (2 UNITS) WITH HORIZONTAL STORAGE TANK
WARNING: THIS DRAWING SHOWS SUGGESTED
PIPING CONFIGURATION AND OTHER DEVICES;
CHECK WITH LOCAL CODES AND ORDINANCES
FOR ADDITIONAL REQUIREMENTS.
40
NOTES:
1. Preferred piping diagram.
2. The temperature and pressure relief valve setting shall not exceed pressure rating of any component in the system.
3. Service valves are shown for servicing unit. However, local codes shall govern their usage.
4. The Tank Temperature Control should be wired to and control the pump between the water heater(s) and the storage tank(s).
5. The water heater’s operating thermostat should be set 5 degrees F higher than the Tank Temperature Control.
Page 41
FULL PORT BALL VALVE
CHECK VALVE
TEMPERATURE GAGE
WATER FLOW SWITCH
LEGEND
TEMPERATURE & PRESSURE
RELIEF VALVE
PRESSURE RELIEF VALVE
CIRCULATING PUMP
TANK TEMPERATURE CONTROL
DRAIN
BOOSTER WATER RETURN
HEATER
BOOSTER
BOOSTER WATER
TO FIXTURES
PRE-HEATED
WATER TO
BOOSTER
COLD WATER
SUPPLY
HOT WATER
HOT WATER
TO FIXTURES
RETURN
EXPANSION TANK
MULTI FLUE (2 UNITS) TWO TEMPERATURE
WARNING: THIS DRAWING SHOWS SUGGESTED
PIPING CONFIGURATION AND OTHER DEVICES;
CHECK WITH LOCAL CODES AND ORDINANCES
FOR ADDITIONAL REQUIREMENTS.
41
1st HEATER
NOTES:
1. Preferred piping diagram.
2. The temperature and pressure relief valve setting shall not exceed pressure rating of any component in the system.
3. Service valves are shown for servicing unit. However, local codes shall govern their usage.
Page 42
FULL PORT BALL VALVE
HOT OUTLET
CHECK VALVE
LEGEND
TEMPERATURE & PRESSURE
RELIEF VALVE
PRESSURE RELIEF VALVE
TEMPERATURE GAGE
WATER FLOW SWITCH
CIRCULATING PUMP
TANK TEMPERATURE CONTROL
DRAIN
AT STORED
TEMPERATURE
HOT WATER
RETURN
BOOSTER RETURN
(IF USED)
BOOSTED
WATER
OUTLET
COLD WATER
SUPPLY
TYPICAL
BOOSTER
EXPANSION
TANK
HEATER
PIPE T&P TO
OPEN DRAIN
PIPE T&P TO
OPEN DRAIN
PRE-HEATER
MUST BE IDENTICAL HEATERS
PRE-HEATER
MULTI FLUE (2 UNITS) WITH BOOSTER TWO TEMPERATURE
WARNING: THIS DRAWING SHOWS SUGGESTED
PIPING CONFIGURATION AND OTHER DEVICES;
CHECK WITH LOCAL CODES AND ORDINANCES
FOR ADDITIONAL REQUIREMENTS.
42
PIPE T&P TO
OPEN DRAIN
FINISHED FLOOR
NOTES:
1. Preferred piping diagram.
2. The temperature and pressure relief valve setting shall not exceed pressure rating of any component in the system.
3. Service valves are shown for servicing unit. However, local codes shall govern their usage.
Page 43
FULL PORT BALL VALVE
HOT WATER
CHECK VALVE
LEGEND
TEMPERATURE & PRESSURE
RELIEF VALVE
PRESSURE RELIEF VALVE
TEMPERATURE GAGE
WATER FLOW SWITCH
CIRCULATING PUMP
TANK TEMPERATURE CONTROL
DRAIN
HOT WATER
RETURN
COLD WATER
SUPPLY
EXPANSION
TANK
PIPE T&P TO
OPEN DRAIN
PIPE T&P TO
OPEN DRAIN
TO FIXTURES
PIPE T&P TO
OPEN DRAIN
MULTI-FLUE (3 UNITS)
FOR ADDITIONAL REQUIREMENTS.
NOTES:
1. Preferred piping diagram.
2. The temperature and pressure relief valve setting shall not exceed pressure rating of any component in the system.
3. Service valves are shown for servicing unit. However, local codes shall govern their usage.
WARNING: THIS DRAWING SHOWS SUGGESTED
PIPING CONFIGURATION AND OTHER DEVICES;
CHECK WITH LOCAL CODES AND ORDINANCES
43
Page 44
FULL PORT BALL VALVE
HOT WATER
CHECK VALVE
LEGEND
TEMPERATURE & PRESSURE
RELIEF VALVE
PRESSURE RELIEF VALVE
TEMPERATURE GAGE
WATER FLOW SWITCH
CIRCULATING PUMP
TANK TEMPERATURE CONTROL
DRAIN
TO FIXTURES
PIPE T&P TO
OPEN DRAIN
HOT WATER
RETURN
STORAGE TANK
COLD WATER
SUPPLY
ALT. COLD WATER
CONNECTION
EXPANSION TANK
HEATERHEATERHEATER
PIPE T&P TO
OPEN DRAIN
PIPE T&P TO
OPEN DRAIN
MULTI-FLUE (3 UNITS) WITH VERTICAL STORAGE TANK
WARNING: THIS DRAWING SHOWS SUGGESTED
PIPING CONFIGURATION AND OTHER DEVICES;
CHECK WITH LOCAL CODES AND ORDINANCES
FOR ADDITIONAL REQUIREMENTS.
44
PIPE T&P TO
OPEN DRAIN
FINISHED FLOOR
NOTES:
1. Preferred piping diagram.
2. The temperature and pressure relief valve setting shall not exceed pressure rating of any component in the system.
3. Service valves are shown for servicing unit. However, local codes shall govern their usage.
4. The Tank Temperature Control should be wired to and control the pump between the water heater(s) and the storage tank(s).
5. The water heater’s operating thermostat should be set 5 degrees F higher than the Tank Temperature Control.
Page 45
FULL PORT BALL VALVE
CHECK VALVE
LEGEND
TEMPERATURE & PRESSURE
RELIEF VALVE
PRESSURE RELIEF VALVE
TEMPERATURE GAGE
WATER FLOW SWITCH
CIRCULATING PUMP
TANK TEMPERATURE CONTROL
DRAIN
PIPE T&P TO
HOT WATER TO FIXTURES
HOT WATER
RETURN
OPEN DRAIN
COLD WATER
SUPPLY
ALTERNATE
LOCATION
STORAGE TANK
EXPANSION TANK
MULTI-FLUE (3 UNITS) WITH HORIZONTAL STORAGE TANK
WARNING: THIS DRAWING SHOWS SUGGESTED
PIPING CONFIGURATION AND OTHER DEVICES;
CHECK WITH LOCAL CODES AND ORDINANCES
FOR ADDITIONAL REQUIREMENTS.
45
HEATERHEATERHEATER
PIPE T&P TO
OPEN DRAIN
PIPE T&P TO
OPEN DRAIN
PIPE T&P TO
OPEN DRAIN
FINISHED FLOOR
NOTES:
1. Preferred piping diagram.
2. The temperature and pressure relief valve setting shall not exceed pressure rating of any component in the system.
3. Service valves are shown for servicing unit. However, local codes shall govern their usage.
4. The Tank Temperature Control should be wired to and control the pump between the water heater(s) and the storage tank(s).
5. The water heater’s operating thermostat should be set 5 degrees F higher than the Tank Temperature Control.
Page 46
FULL PORT BALL VALVE
HOT WATER
CHECK VALVE
LEGEND
TEMPERATURE & PRESSURE
RELIEF VALVE
PRESSURE RELIEF VALVE
TEMPERATURE GAGE
WATER FLOW SWITCH
CIRCULATING PUMP
TANK TEMPERATURE CONTROL
DRAIN
HOT WATER
RETURN
PIPE T&P TO
OPEN DRAIN
COLD WATER
SUPPLY
PIPE T&P TO
OPEN DRAIN
EXPANSION
TANK
PIPE T&P TO
OPEN DRAIN
PIPE T&P TO
OPEN DRAIN
TO FIXTURES
FINISHED FLOOR
MULTI FLUE FLUE (4 UNITS)
WARNING: THIS DRAWING SHOWS SUGGESTED
PIPING CONFIGURATION AND OTHER DEVICES;
CHECK WITH LOCAL CODES AND ORDINANCES
FOR ADDITIONAL REQUIREMENTS.
NOTES:
1. Preferred piping diagram.
2. The temperature and pressure relief valve setting shall not exceed pressure rating of any component in the system.
3. Service valves are shown for servicing unit. However, local codes shall govern their usage.
46
Page 47
FULL PORT BALL VALVE
HOT WATER
CHECK VALVE
TEMPERATURE GAGE
WATER FLOW SWITCH
HOT WATER
RETURN
COLD WATER
SUPPLY
EXPANSION
TANK
LEGEND
ALT. COLD
WATER
TO FIXTURES
TEMPERATURE & PRESSURE
RELIEF VALVE
PRESSURE RELIEF VALVE
CIRCULATING PUMP
TANK TEMPERATURE CONTROL
DRAIN
STORAGE TANK
PIPE T&P TO
OPEN DRAIN
CONNECTION
HEATERHEATERHEATERHEATER
PIPE T&P TO
OPEN DRAIN
PIPE T&P TO
OPEN DRAIN
PIPE T&P TO
OPEN DRAIN
PIPE T&P TO
OPEN DRAIN
MULTI-FLUE (4 UNITS) WITH VERTICAL STORAGE TANK
WARNING: THIS DRAWING SHOWS SUGGESTED
PIPING CONFIGURATION AND OTHER DEVICES;
CHECK WITH LOCAL CODES AND ORDINANCES
FOR ADDITIONAL REQUIREMENTS.
47
FINISHED FLOOR
NOTES:
1. Preferred piping diagram.
2. The temperature and pressure relief valve setting shall not exceed pressure rating of any component in the system.
3. Service valves are shown for servicing unit. However, local codes shall govern their usage.
4. The Tank Temperature Control should be wired to and control the pump between the water heater(s) and the storage tank(s).
5. The water heater’s operating thermostat should be set 5 degrees F higher than the Tank Temperature Control.
Page 48
FULL PORT BALL VALVE
CHECK VALVE
LEGEND
TEMPERATURE & PRESSURE
RELIEF VALVE
PRESSURE RELIEF VALVE
TEMPERATURE GAGE
WATER FLOW SWITCH
CIRCULATING PUMP
TANK TEMPERATURE CONTROL
DRAIN
HOT WATER
RETURN
PIPE T&P TO
OPEN DRAIN
COLD WATER
ALTERNATE
LOCATION
SUPPLY
EXPANSION TANK
HOT WATER
TO FIXTURES
HEATERHEATERHEATERHEATER
PIPE T&P TO
OPEN DRAIN
PIPE T&P TO
OPEN DRAIN
STORAGE TANK
MULTI-FLUE (4 UNITS) WITH HORIZONTAL STORAGE TANK
WARNING: THIS DRAWING SHOWS SUGGESTED
PIPING CONFIGURATION AND OTHER DEVICES;
CHECK WITH LOCAL CODES AND ORDINANCES
FOR ADDITIONAL REQUIREMENTS.
PIPE T&P TO
OPEN DRAIN
48
PIPE T&P TO
OPEN DRAIN
FINISHED FLOOR
NOTES:
1. Preferred piping diagram.
2. The temperature and pressure relief valve setting shall not exceed pressure rating of any component in the system.
3. Service valves are shown for servicing unit. However, local codes shall govern their usage.
4. The Tank Temperature Control should be wired to and control the pump between the water heater(s) and the storage tank(s).
5. The water heater’s operating thermostat should be set 5 degrees F higher than the Tank Temperature Control.
Page 49
MANIFOLD KITS
TWO UNIT MANIFOLD KIT
(PART NO. 9003426205)
THREE UNIT MANIFOLD KIT
(PART NO. 9003427205)
MANIFOLD KITS
SBD85500NE/
SBD85500PE
DIMENSION "A"MODEL
81.5"
49
FOUR UNIT MANIFOLD KIT
(PART NO. 9003428205)
Page 50
LIMITED WARRANTY
Limited Warranty
State Water Heaters, the warrantor, extends the following LIMITED WARRANTY to the owner of this water heater.
1. THE TANK
If the glass-lined tank in this water heater shall prove upon examination by the warrantor to have leaked due to natural corrosion from potable water
therein, during the
current model. Some government agencies are requiring energy
of equivalent size and construction, State will provide a model which complies with the regulations of your area, in which case the consumer
will be charged the difference in price between the like replacement and the energy
heater will be limited to the unexpired term of the original warranty.
2. ALL OTHER PARTS
If within ONE year after initial installation of this water heater, any part or portion shall prove upon examination by the warrantor to be defective in
material or workmanship, the warrantor will repair or replace such part or portion at its option.
3. CONDITIONS AND EXCEPTIONS
This warranty shall apply only when the water heater is installed in accordance with local plumbing and building codes, ordina nces and regulations,
the printed instructions provided with it and good industry practices. In addition, a temperature and pressure relief valve,
sanctioned and recognized independent testing agency and approved by the American Society of Mechanical Engineers, must have been installed.
a. This warranty shall apply only when the heater is:
(1) used at temperatures not exceeding the maximum calibrated setting of its thermostat;
(2) used at water pressure not exceeding the working pressure shown on the heater;
(3)
(4) used in a non-corrosive and non-contaminated atmosphere;
(5) used with factory approved anode(s) installed;
(6) in its original installation location;
(7) in the United States, its territories or possessions or Canada;
(8) sized in accordance with proper sizing techniques for commercial and/or residential water heaters;
(9) bearing a rating plate which has not been altered, defaced or removed, except as required by the warrantor;
(10) used in an open system or in a closed system with properly sized and installed thermal expansion tank;
(11) operated with properly installed dirt leg;
(12)
(13)
(14) operated with the inner and outer combustion chamber doors in place.
b. Any accident to the water heater, any misuse, abuse (including freezing or thermal expansion damage) or alteration of, any operation in a
form, or any attempt to repair tank leaks will void this warranty.
c. This warranty is void if a device acting as a
nected to, unless an effective method of controlling thermal expansion is also installed at the heater(s) and operational at all times. The relief
valve installed on the heater is not an acceptable method.
4. SERVICE AND REPAIR EXPENSES
.stsoc rehto lla rof elbisnopser si renwo ehT .foereht trap ro retaeh retaw tnemecalper a ylno edivorp lliw rotnarraw eht ytnarraw detimil eht rednU
Such costs may include but are not limited to:
a. Labor charges for service removal, repair or reinstallation of the water heater or any component part;
b. Shipping, delivery, handling, and administrative charges for forwarding the new heater or replacement part from the nearest distributor and
returning the claimed defective heater or part to such distributor.
c. All cost necessary or incidental for any material and/or permits required for installation of the replacement heater or part.
5. LIMITATIONS ON IMPLIED WARRANTIES
Implied warranties, including the warranty of merchantability imposed on the sale of this heater under state law or local code are limited to one (1)
year duration for the heater or any of its parts. Some areas do not allow limitation on how long an implied warranty lasts, so the above limitation may
not apply to you.
6. CLAIM PROCEDURE
THREE years after initial installation, the warrantor will supply a complete new State water heater of equivalent size and
standards for water heaters. In the event regulations prohibit sale of a model
model required. The warranty on the replacement water
by and
with potable water, free to circulate at all times and with the tank free of damaging water sediment or scale deposits;
with the fuel for which it was factory built;
at the factory rated input;
prevention device (check valves etc.) is installed in the cold water supply the heater is con-
Any claim under the warranty should be initiated with the dealer who sold the heater, or with any other dealer handling the warrantor’s products. If
this is not practicable, the owner should contact:
U.S. Customers
State Industries, Inc.
500 Tennessee Waltz Parkway
Ashland City, TN 37015
a. The warrantor will only honor replacement with identical or similar water heater or parts thereof which are manufactured
warrantor.
b. Dealer replacements are made subject to in-warranty validation by warrantor.
7. DISCLAIMERS
NO OTHER EXPRESS WARRANTY HAS BEEN OR WILL BE MADE IN BEHALF OF THE WARRANTOR WITH RESPECT TO THE MERCHANT-
ABILITY OF THE HEATER OR THE INSTALLATION, OPERATION, REPAIR OR REPLACEMENT OF THE HEATER. THE WARRANTOR SHALL NOT
BE RESPONSIBLE FOR WATER DAMAGE, LOSS OF USE OF THE UNIT, INCONVENIENCE, LOSS OR DAMAGE TO PERSONAL PROPERTY
OR OTHER CONSEQUENTIAL DAMAGE. THE WARRANTOR SHALL NOT BE LIABLE BY VIRTUE OF THIS WARRANTY OR OTHERWISE FOR
DAMAGE TO ANY PERSONS OR PROPERTY, WHETHER DIRECT OR INDIRECT, AND WHETHER ARISING IN CONTRACT OR IN TORT.
a. Some areas do not allow the exclusion or limitation of the incidental or consequential damage, so the above limitations or exclusions may not
apply to you.
b. This warranty gives you
Fill in the following for your own reference. Keep it. Registration is not a condition of warranty. The model and serial number are found on the heater’s
rating plate.
Model No. ____________________Serial No. _____________________________________________Date Installed__________________________
Dealer’s Name____________________________________________________________________________________________________________
Dealer’s Address ________________________________________________________________________ Phone No.________________________
City and State __________________________________________________________________________ Zip _____________________________
T elephone: (800) 365-0024
or distributed by the
legal rights, and you may also have other rights which vary from area to area.
KEEP THIS WARRANTY POSTED ADJACENT TO THE HEATER FOR FUTURE REFERENCE.
50
Page 51
NOTES
Page 52
500 Tennessee Waltz Pkwy., Ashland City, TN 37015
Technical Support: 800-365-8170 • Parts: 800-821-2017
Copyright © 2010 State Industries, Inc. All rights reserved.
www.statewaterheaters.com
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