State SBD85 500NE Service Manual

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Page 1

Instruction Manual

COMMERCIAL GAS WATER HEATERS

MODELS SBD85500NE &

SBD85500PE

SERIES 120/121

INSTALLATION - OPERATION - SERVICE

500 Tennessee Waltz Pkwy

Ashland City, TN 37015

- MAINTENANCE - LIMITED WARRANTY

ANSI / NSF 5

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.

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 efﬁ cient water heater. We appreciate your conﬁ dence in our products.

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

PRINTED IN THE U.S.A. 0510 318298-000

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

GENERAL SAFETY INFORMATION ................................................... 4-5

Precautions ........................................................................................ 4

INTRODUCTION .................................................................................... 6

Qualiﬁ cations ..................................................................................... 6

FEATURES AND COMPONENTS ......................................................... 7

The Eliminator (Self Cleaning System) .............................................. 7

High Limit Switch ............................................................................... 7

Electronic Ignition Control .................................................................. 7

Exhaust Inducer (blower Assy.) ......................................................... 7

Uncrating ........................................................................................... 7

INSTALLATION CONSIDERATIONS ................................................ 8-11

Rough In Dimensions ........................................................................ 8

Recovery Capacities .......................................................................... 8

Gas and Electrical Characteristics ..................................................... 8

Locating The Water Heater ................................................................ 9

Leveling ............................................................................................. 9

Clearances ........................................................................................ 9

Installation on Combustible Flooring ............................................... 10

Insulation Blanket ............................................................................ 10

Hard Water ...................................................................................... 10

Circulation Pumps ...................................................................... 10-11

INSTALLATION REQUIREMENTS ................................................. 11-14

Supply Gas Regulator ......................................................................11

Power Supply ...................................................................................11

Mixing Valves ....................................................................................11

Dishwashing Machines .................................................................... 12

Closed Water Systems .................................................................... 12

Thermal Expansion .......................................................................... 12

Temperature-Pressure Relief Valve ............................................ 12-13

Contaminated Air ............................................................................. 13

Air Requirements ............................................................................. 13

Unconﬁ ned Space ...........................................................................14

Conﬁ ned Space ............................................................................... 14

Exhaust Fans ............................................................................................ 14

Louvers and Grilles ................................................................................... 14

Vent Reducer ................................................................................... 14

VENTING INSTALLATION .............................................................. 14-18

Venting ............................................................................................. 14

Multiple Heater Manifold .................................................................. 15

Fresh Air Opening for Conﬁ ned Spaces .......................................... 15

Outdoor Air Through Two Openings ................................................ 15

Outdoor Air Through One Opening .................................................. 15

Outdoor Air Through Two Horizontal Ducts ..................................... 15

Outdoor Air Through Two Vertical Ducts .......................................... 16

Air From Other Indoor Spaces ......................................................... 16

Technical Data Venting ............................................................... 17-18

WATER HEATER INSTALLATION ...................................................19-22

Water Line Connections .................................................................. 19

Water (Potable) Heating and Space Heating............................................19

Thermometer (Not Supplied) ....................................................................19

Water Piping Diagrams ............................................................................. 19

T&P Valve Discharge Pipe ............................................................... 19

Installation Diagrams ....................................................................... 20

Code Restrictions ............................................................................ 20

Heater Wiring ................................................................................... 21

Gas Piping ....................................................................................... 22

Purging ............................................................................................ 22

Gas Pressure Regulator .................................................................. 22

OPERATION ......................................................................................... 23

General ............................................................................................ 23

Filling ............................................................................................... 23

Adjustments ..................................................................................... 23

SEQUENCE OF OPERATION ............................................................. 23

Lighting & Operation Label .............................................................. 24

Checking Venting ............................................................................. 25

Checking 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

To Drain the Water Heater Storage Tank ..................................................27

To Flush the Water Heater Storage Tank ..................................................27

Recommended Procedure for Periodic Removal or Lime Deposits

from the Tank Type\ Commercial Water Heaters ............................. 28

DeLiming Solvents ........................................................................... 28

Tank Cleanout Procedure ...........................................................28-29

Ignition Module System ................................................................... 29

SERVICE .............................................................................................. 29

Electrical Servicing .......................................................................... 29

FOR YOUR INFORMATION ................................................................. 30

Start up Conditions .......................................................................... 30

Operational Conditions .................................................................... 30

"Air" in the Water Faucets .........................................................................30

High Water Temperature Shut off System ................................................30

Sequence of Operation Flow Chart ................................................. 31

Operational Checklist ...................................................................... 32

WATER PIPING DIAGRAMS ........................................................... 33-47

WARRANTY ......................................................................................... 48

Page 3

SAFE INSTALLATION, USE AND SERVICE

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

ASME CRN

ANSI / NSF 5

Page 4

GENERAL SAFETY INFORMATION

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.

CAUTION

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.

Page 5

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 qualiﬁ ed 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.

External ﬁ re.1.

Damage.2.

Firing without water.3.

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 ﬂ 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 ﬂ ow. THERE SHOULD BE NO SMOKING OR OPEN FLAME NEAR THE FAUCET AT THE TIME IT IS OPEN.

Page 6

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 Qualiﬁ ed Agency (as deﬁ ned by ANSI

below) in the ﬁ 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: “Qualiﬁ ed Agency” - “Any individual, ﬁ 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 qualiﬁ ed (as deﬁ ned by ANSI above) and licensed or certiﬁ ed 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.

Page 7

FEATURES AND COMPONENTS

THE ELIMINATOR (SELF-CLEANING SYSTEM)

These units include The Eliminator (Self-Cleaning System) installed in the front water inlet, See Figure 1. The Eliminator must be oriented correctly for proper function. There is a marked range on the pipe nipple portion of the Eliminator, 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 Eliminator to reduce the probability of misaligning the Eliminator accidentally while tightening the connection to the inlet water supply line. Improper orientation of the Eliminator can cause poor performance of the heater and can signiﬁ cantly reduce outlet water temperatures during heavy draws.

Note: The inlet tube may have 1, 3 or 7 cross tubes.

FIGURE 1

For proper function, the Eliminator must be oriented correctly. There is a marked range on the pipe nipple that must be aligned with the top of the inlet spud (check for label on the appliance) to assure proper operation. Please check to confirm that the marked range is in alignment with the top of the spud. A pipe union is supplied with the Eliminator to help eliminate the possibility of changing the orientation by accidentally overtightening the inlet supply. Improper orientation of the Eliminator may cause temperature buildup issues or spells of colder than usual water temperatures.

HIGH LIMIT SWITCH

The digital thermostat (Figure 2) contains the high limit (energy cutoff) sensor. The high limit switch interrupts main burner gas ﬂ 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 a ignition module. The solid sate ignition control (Figure 3), ignites the main burner by utilizing a silicone nitride ignitor. The silicone nitride ignitor shuts off during the heating cycle and the main burner ﬂ ame is sensed through a remote ﬂ ame sensor integral to the silicone nitride ignitor assembly.

The ignition control will try to ignite the main burner three times before lockout. Then it waits one hour before trying again to ignite the main burners. This is a continuous cycle.

IGNITION CONTROL BOARD

FIGURE 3

EXHAUST INDUCER (BLOWER ASSY.)

The SBD85500NE/SBD85500PE 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 ﬂ ue, improving efﬁ ciency.

DIGITAL THERMOSTAT

FIGURE 2

EXHAUST INDUCER

FIGURE 4

FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN SERIOUS PERSONAL INJURY OR DEATH.

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.

Page 8

ROUGH IN DIMENSIONS

INSTALLATION CONSIDERATIONS

FRONT VIEW

TOP

OUTLET

1 1/2” NPT

TOP

INLET

1 1/2” NPT

BACK VIEW

TOP VIEW

TABLE 1. ROUGH-IN-DIMENSIONS

FIGURE 5

Connections

Inlet (NPT) Outlet (NPT)

Approx. Ship Weight

Lbs/ Kgs.

745 857

338 389

Model

SBD85500NE/

SBD85500PE

SBD85500NE/

SBD85500PE

Input Rate

Btu/Hr Kw/Hr

500,000 85

Approximate

Tank Cap

147 322

Dimensions in Inches/cm

Gas

G/L

ABCDEF

81.50 17.50 77.25 67.50 27.13 21.00 1.00 67.50 8.00 27.75

207 44 196 171 69 53 3 171 20 70

Inlet

Vent

Dia

Top Front Back Top Front Back Std.

1.50 1.50 1.50 1.50 1.50 1.50

TABLE 2. RECOVERY CAPACITIES, based on 80% efﬁ ciency

Input Rate

Model

SBD85500NE/

SBD85500PE 500,000 85 1616 1212 970 808 693 606 539 485 441 404 373 346

SBD85500NE/

SBD85500PE 147 322 6118 4588 3671 3059 2622 2294 2039 1835 1668 1529 1412 1311

Btu/Hr Kw/Hr

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

(-1)°C 4°C 10°C 15°C 21°C 27°C 32°C 38°C 43°C 49°C 54°C 60°C

Recovery Rating Capacities (GPH and LPH)

TABLE 3. GAS AND ELECTRICAL CHARACTERISTICS

Model Type of Gas Inches of W.C. kPA Volts/Hz Amperes SBD85500NE/SBD85500PE Natural 3.50" 0.87 120/60 <5 SBD85500NE/SBD85500PE Propane 10.00" 2.48 120/60 <5

ASME

Lbs/ Kgs.

Page 9

INSTALLATION CONSIDERATIONS

LOCATING THE WATER HEATER

CAUTION

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 ﬂ 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 ﬂ ow.

LEVELING

If the unit is not level, insert the bolts which were used in crating into the legs to correct this condition.

CLEARANCES

This water heater is approved for installation on combustible ﬂ ooring (with Installation on Combustible Flooring #9003425205) in an alcove when the minimum clearance from any combustion construction are followed as indicated in Figure 7 and Table 4.

In all installations the minimum combustible clearances from vent piping shall be 6” (152mm). Vent piping passing through a combustible wall or ceiling must be a continuous run (no joints) and retain the 6” (152mm) clearance unless an approved reducing thimble is used.

A service clearance of 24” (610mm) should be maintained from serviceable parts, such as relief valves, ﬂ ue bafﬂ es, 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"

RIGHT

MODEL

SBD85500NE/

SBD85500PE

SIDE

(12.7 mm)

TABLE 5

MINIMUM CLEARANCES TO NONCOMBUSTIBLE CONSTRUCTION

"A"

RIGHT

MODEL

SBD85500NE/

SBD85500PE

SIDE

0 0 0 12"

"B"

LEFT

SIDE

(12.7 mm)

"B"

LEFT

SIDE

"C"

BACK

(12.7 mm)

"C"

BACK

"D"

CEILING

20"

(508mm)

"D"

CEILING

(305 mm)

Page 10

FIGURE 6

INSTALLATION ON COMBUSTIBLE FLOORING

The SBD85500NE/SBD85500PE is approved for installations on combustible ﬂ ooring when installed with leg kit number

9003425205.

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 identiﬁ cation of components mentioned below. Failure to follow these instructions can restrict the air ﬂ ow required for proper combustion, potentially resulting in ﬁ re, asphyxiation, serious personal injury or death.

DO NOT• apply insulation to the top of the water heater, as this will interfere with safe operation of the draft hood.

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 ﬂ ow to the burners.

DO NOT• allow insulation to come within 9 inches (23 cm) of ﬂ oor, (within 2 inches (5 cm) of bottom cover) to prevent blockage of combustion air ﬂ 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 ﬂ ow.

HARD WATER

FIGURE 7

Unit needs to be lifted in a way not to damage unit or laid 1.

on it’s side to access the bottom of the legs.

Slide leg extension under leg and the bolt up through the 2.

bottom hole located in the bottom of the leg.

Once in place, screw nut down and secure.3.

Front of leg should line up with front of leg extension as 4.

shown to make sure weight of unit is distributed through the leg extension.

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.

See the Circulation Pump Wiring Diagrams 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.

Page 11

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

OR CIRCULATING LOOP RETURN LINE

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

FIELD SUPPLIED TEMPERATURE CONTROL INSTALLED IN THE CIRCULATING LOOP RETURN LINE

L2 NEUTRAL

120 VAC POWER

FIGURE 8

CIRC

PUMP

MOTOR

INSTALLATION REQUIREMENTS

SUPPLY GAS REGULATOR

The water heater covered by this manual requires a supply gas regulator to be installed in the supply gas line serving the water heater for proper operation. Supply gas regulators are required on high and low pressure gas supply systems.

NOTE: On multiple water heater installations each water heater shall have its own dedicated supply gas regulator installed in the supply gas line serving the water heater.

Supply gas regulators must be rated at or above the input Btu/ hr rating of the water heater they supply. 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 5. The Maxitrol 325-7L or equivalent is recommended.

See Supply Gas Regulator Installation on page 11.

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.

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.

L2 NEUTRAL

120 VAC

POWER

FIGURE 9

CIRC

PUMP

MOTOR

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 inﬁ rm 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 ﬁ 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 satisﬁ es 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 Qualiﬁ ed Installer or Service Agency. Follow mixing valve manufacturer’s instructions for installation of the valves.

TABLE 6

Water Temperature

Time to Produce 2nd & 3rd

Degree Burns on Adult Skin

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

Page 12

DISHWASHING MACHINES

All dishwashing machines meeting the National Sanitation Foundation requirements are designed to operate with water ﬂ 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 ﬂ 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.

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 33.

TEMPERATURE-PRESSURE RELIEF VALVE

Explosion Hazard

HOT WATER

OUTLET

12” TO 15” (30-38 cm)

TEMPERED WATER

OUTLET

COLD

WATER

INLET

CHECK

VALV E

TO TANK

INLET

CHECK

VALV E

MIXING

VALV E

Figure 10

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 ﬂ ow by throttling a full port ball valve installed in the circulating line on the outlet side of the pump. Never throttle ﬂ 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 ﬂ 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.

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 certiﬁ ed combination Temperature-Pressure Relief Valve (T&P valve) by the manufacturer. The valve is certiﬁ ed 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 certiﬁ ed 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 TemperaturePressure 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 ﬁ 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 ﬂ 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.

Page 13

No valve or other obstruction is to be placed between the 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 ﬂ ow may cause property damage.

CAUTION

Water Damage Hazard

Temperature-Pressure Relief Valve discharge

•

pipe must terminate at adequate drain.

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.

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 ﬂ 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.

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 12.

If you do not understand these instructions or have any questions

Breathing carbon monoxide can cause brain damage or death. Always read and understand instruction manual.

Corrosion of the ﬂ 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).

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 insufﬁ cient 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

ﬂ ame, causing sooting of the combustion chamber, burners and ﬂ ue tubes and creates a risk of asphyxiation.

Do not install the water heater in a conﬁ ned space unless an adequate supply of air for combustion and ventilation is brought in to that space using the methods described in the Conﬁ ned

Page 14

Space section that follows.

Never obstruct the ﬂ 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 ﬁ re or explosion and cause property damage, serious bodily injury or death.

UNCONFINED SPACE

An Unconﬁ ned 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 unconﬁ ned space.

Makeup air requirements for the operation of exhaust fans, kitchen ventilation systems, clothes dryers and ﬁ replaces shall also be considered in determining the adequacy of a space to provide combustion, ventilation and dilution air.

UNUSUALLY TIGHT CONSTRUCTION

In unconﬁ ned spaces in buildings, inﬁ ltration may be adequate to provide air for combustion, ventilation and dilution of ﬂ 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 Conﬁ ned Space section that follows.

CONFINED SPACE

through the water heater’s vent system causing poor combustion. Sooting, serious damage to the water heater and the risk of ﬁ 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 speciﬁ ed. 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 ﬁ xed in the open position.

VENT REDUCER

The SBD85500NE/SBD85500PE model is shipped with a 6" to 8" diameter ﬂ ue outlet adapter. Each adapter ﬁ ts on top of the installed blower exhaust. Use only vent reducers 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.

A Conﬁ ned 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 conﬁ ned spaces. The required size for the openings is dependent on the method used to provide fresh air to the conﬁ ned 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, sufﬁ cient 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

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 pages 17 and 18.

This water heater must be vented in compliance with all local codes, the current revision of the National Fuel Gas Code (ANSIZ223.1) and with the Category I Venting Tables.

If any part of the vent system are exposed to ambient temperatures below 40°F it must be insulated to prevent condensation.

Figure 11

• 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 ﬁ red 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

Page 15

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 tables on pages 17 and 18 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 conﬁ ned spaces. The illustrations shown in this section of the manual are a reference for the openings that provide fresh air into conﬁ ned spaces only. DO NOT refer to these illustrations for the purpose of vent installation. See Venting Installation on page 14 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 square inch per 3000 Btu/hr (700 mm1.

per kW) of the total input

rating of all appliances located in the enclosure, and Not less than the sum of the areas of all vent connectors in the space.2.

OUTDOOR AIR THROUGH TWO HORIZONTAL DUCTS

Figure 14

The conﬁ ned 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 mm of all appliances installed in the enclosure. Each opening shall not be less than 100 square inches (645 cm

per kW) of the aggregate input rating

Figure 16

The conﬁ ned 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.

Page 16

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 conﬁ ned spaces only.

DO NOT refer to these illustrations for the purpose of vent installation. See Venting Installation on page 14 for complete venting installation instructions.

Figure 17

The conﬁ ned 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.

AIR FROM OTHER INDOOR SPACES

Figure 18

Each opening shall communicate directly with an additional room(s) of sufﬁ cient volume so that the combined volume of all spaces meets the criteria for an Unconﬁ ned Space.

Each opening shall have a minimum free area of 1 square inch per 1,000 Btu/hr (1100 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).

Page 17

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 (ﬁ gure 13) and tables below which give sizing and data based upon NFPA 54/ANSI Z223. 1992.

MODEL 120

Input: 120,000 Btu/hr Total Vent Height (Feet) Vent Connector Size: 5 inches 6 8 10 15 20 30 50 100

Input Btu/hr Rise Vent Connector Diameter (Inches) 120,000 1 Ft. 6 6 5 5 5 5 5 5 120,000 2 Ft. 5 5 5 5 5 5 5 5 120,000 3 Ft. 5 5 5 5 5 5 5 5

Number of Combined Input

Heaters in Thousands of Btu/hr Manifold and Common Vent Diameter (Inches)

2 240,000 7 7 6 6 6 6 6 6 3 360,000 8 8 7 7 7 6 6 6

4 480,000 9 9 9 8 8 7 7 6

MODEL 154 Input: 154,000 Btu/hr Total Vent Height (Feet) Vent Connector Size: 6 inches 6 8 10 15 20 30 50 100

Input Btu/hr Rise Vent Connector Diameter (Inches) 154,000 1 Ft. 6 6 6 6 6 6 6 6 154,000 2 Ft. 6 6 6 6 6 6 6 6 154,000 3 Ft. 6 6 6 6 6 6 6 6

Number of Combined Input Heaters in Thousands of Btu/hr Manifold and Common Vent Diameter (Inches)

2 308,000 7 7 6 6 6 6 6 6 3 462,000 8 8 7 7 7 6 6 6 4 616,000 9 9 9 8 8 7 7 6

MODEL 180,199, 200 Input: 180,000, 190,000 and 199,000 Btu/hr T otal Vent Height (Feet) Vent Connector Size: 6 inches 6 8 10 15 20 30 50 100

Input Btuh/hr Rise Vent Connector Diameter (Inches) 180,000 1 Ft. 7 7 6 6 6 6 6 6

190,000 1 Ft. 7 7 7 6 6 6 6 6 199,000 1 Ft. 7 7 7 6 6 6 6 6 180,000 2 Ft. 6 6 6 6 6 6 6 6 190,000 2 Ft. 7 6 6 6 6 6 6 6 199,000 2 Ft. 7 7 6 6 6 6 6 6 180,000 3 Ft. 6 6 6 6 6 6 6 6 190,000 3 Ft. 6 6 6 6 6 6 6 6 199,000 3 Ft. 6 6 6 6 6 6 6 6

Number of Combined Input Heaters in Thousands of Btu/hr Manifold & Common Vent Diameter (Inches)

360,000 7 7 6 6 6 6 6 6 2 380,000 7 7 7 6 6 6 6 6 398,000 6 7 7 6 6 6 6 6 540,000 7 6 6 6 6 6 6 6 3 570,000 7 6 6 6 6 6 6 6 597,000 6 7 6 6 6 6 6 6 720,000 6 6 6 6 6 6 6 6 4 760,000 6 6 6 6 6 6 6 6 796,000 6 6 6 6 6 6 6 6

Page 18

TABLE 8. TECHNICAL DATA VENTING (Continued)

MODEL 250 Input: 250,000 Btu/hr Total Vent Height (Feet)

Vent Connector Size: 6 inches 6 8 10 15 20 30 50 100

Input Btuh/hr Rise Vent Connector Diameter (Inches) 250,000 1 Ft 8 8 7 7 7 6 6 6 250,000 2 Ft 7 7 7 7 6 6 6 6 250,000 3 Ft 7 7 7 7 6 6 6 6

Number Combined Input

of Heaters in Thousands of Btu/hr Manifold and Common Vent Diameter (Inches)

2 500,000 9 9 9 8 8 7 7 7 3 750,000 12 12 10 10 10 9 8 8 4 1,000,000 14 14 12 12 10 10 9 9

MODEL 275

Input: 275,000 Btu/hr Total Vent Height (Feet) Vent Connector Size: 6 inches 6 8 10 15 20 30 50 100

Input Btu/hr Rise Vent Connector Diameter (Inches) 275,000 1 Ft 8 8 7 7 6 6 6 6 275,000 2 Ft. 8 8 7 7 6 6 6 6 275,000 3 Ft 7 7 7 7 6 6 6 6 Number of Combined Input

Heaters in Thousands of Btu/hr Manifold and Common Vent Diameter (Inches)

2 550,000 10 9 9 8 8 8 7 7 3 825,000 12 12 12 10 9 9 8 8 4 1,100,000 14 14 14 12 12 10 9 9

MODEL 310

Input: 310,000 Btu/hr T otal Vent Height (Feet) Vent Connector Size: 6 inches 6 8 10 15 20 30 50 100

Input Btu/hr Rise Vent Connector Diameter (Inches) 310,000 1 Ft. 9 8 8 8 7 7 6 6

310,000 2 Ft. 8 8 8 7 7 7 6 6 310,000 3 Ft. 8 8 8 7 7 7 6 6

Number of Combined Input Heaters in Thousands of Btu/hr Manifold & Common Vent Diameter

2 620,000 10 10 9 9 8 8 7 7 3 930,000 14 12 12 12 10 9 9 8 4 1,240,000 14 14 14 12 12 12 10 9

MODEL 366, 400 Input: 366,000, 399,000 Btu/hr Total Vent Height (Feet)

Vent Connector Size: 6 inches 6 8 10 15 20 30 50 100

Input Btu/hr Rise Vent Connector Diameter (Inches) 366,000 1 Ft 9 9 9 8 8 8 8 8 399,000 1 Ft 10 9 9 9 8 8 8 8 366,000 2 Ft 9 9 8 8 8 8 8 8 399,000 2 Ft 9 9 9 8 8 8 8 8 366,000 3 Ft 9 8 8 8 8 8 8 8 399,000 3 Ft 9 9 8 8 8 8 8 8 Number of Combined Input

Heaters in Thousands of Btu/hr Manifold & Common Vent Diameter (Inches) 2 732,000 12 10 10 9 9 9 8 8 798,000 12 12 10 10 9 9 8 8 3 1,098,000 14 14 14 12 12 10 9 9 1,197,000 14 14 14 12 12 10 10 9 4 1,464,000 16 16 14 14 14 12 12 10 1,596,000 16 16 16 14 14 12 12 10

Page 19

WATER HEATER INSTALLATION

WATER LINE CONNECTIONS

This manual provides detailed installation diagrams (see pages 33-47 of this manual) for typical methods of application for the water heater(s).

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 ﬂ ow rate should be slow so that there will be a minimum of turbulence inside the heater.

WATER (POTABLE) HEATING AND SPACE HEATING

All piping components connected to this unit for space heating1.

applications shall be suitable for use with potable water.

Toxic chemicals, such as those used for boiler treatment,2. shall

NEVER be introduced into this system.

This unit may NEVER be connected to any existing heating3.

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

When the system requires water for space heating at4.

temperatures higher than required for domestic water purposes, a tempering valve must be installed. Please refer to installation diagrams on pages 33-47 of this manual for suggested piping arrangements.

THERMOMETERS (NOT SUPPLIED)

Thermometers should be obtained and ﬁ 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 33.

The water heater may be installed by itself, or with a separate storage tank. When used with a separate storage tank, the circulation may be either by gravity or by means of circulating pump. When a circulating pump is used, it is important to note that the ﬂ ow rate should be slow so that there will be a minimum of turbulence inside the water heater storage tank.

Adjust ﬂ ow by throttling a full port ball valve installed in the circulating line on the outlet side of the pump. Never throttle ﬂ ow on the suction side of a pump. See the Water Piping Diagrams beginning on page 33.

NOTE: In addition to the factory installed Temperature-Pressure Relief Valve (T&P 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 further assistance in sizing a T&P valve for remote storage tanks.

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 certiﬁ ed combination temperature - pressure (T&P) relief valve by the manufacturer. See Temperature-Pressure Relief Valve on pages 12-13 for information on replacement and other requirements.

CAUTION

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 ﬂ 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 ﬂ 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.

the Temperature-Pressure Relief Valve and the discharge pipe.

Shall not have any valve or other obstruction between the • relief valve and the drain.

Page 20

INSTALLATION DIAGRAMS - TOP INLET/OUTLET USAGE

CODE RESTRICTIONS

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 33-47. 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 the following pages are typical.

The discharge opening of the temperature and pressure relief valve, located in front of the heater must be piped to an open drain and should not be subject to freezing temperatures.

Install in accordance with all local codes.

Use of the top inlet water connection requires installation of an inlet dip tube (refer to ﬁ gure 19). The tube is supplied in the heater. Follow caution labels if applying heat to this ﬁ tting. Do not allow pipe dope to contact the plastic tube during installation.

TUBE INLET INSTALLATION

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 such code restrictions 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 ﬁ lling with water.

TEMPERATURE SETTING SHOULD NOT EXCEED SAFE USE TEMPERATURE AT FIXTURES. SEE WATER TEMPERATURE CONTROL WARNING ON PAGE 11. IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT, ADD AN ANTI-SCALD VALVE FOR HOT WATER SUPPLIED TO FIXTURES.

FIGURE 19

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, 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. 250 used for the ﬂ ame sensor leads and the spark ignition cable must be high voltage 250°C.

UPPER

PROBE/

ECO

BLOWER PROVER PRESSURE SWITCH

THERMOSTAT

INDUCER

C type F must be

LOWER PROBE

BK - BLACK BR - BROWN R - RED Y - YELLOW G - GREEN BL - BLUE W - WHITE

TO EARTH GROUND

IGNITION BOARD

1a 1 1b

HOT 120 VAC NEUTRAL EARTH GROUND

IGNITOR/FLAME SENSOR

120 VAC CIRCUIT FACTORY INSTALLED

PSI

OFF

WIRING DIAGRAM: WHEN EQUIPPED WITH WHITE-RODGERS IGNITION BOARD, DIGITAL THERMOSTAT AND CONTROLS.

IF ANY OF THE ORIGINAL WIRE AS SUPPLIED MUST BE REPLACED USE ONLY TYPE 105 C

BY INSTALLER

THERMOPLASTIC OR EQUIVALENT.

FIGURE 20

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 3. The ﬁ 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.

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 LINE SIZES (IN INCHES)*

MAXIMUM CAPACITY OF PIPE IN

CUBIC FEET PER HOUR

LENGTH

FEET

100 125 150 175 200

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.

1/2" 3/4" 1" 1 1/4" 1 1/2" 2" 2 1/2" 3" 4"

175 360 680 1400 2100 3960 6300 11000 23000

120 250 465 950 1460 2750 4360 7700 15800

20 30 40 50 60 70 80 90

97 200 375 770 1180 2200 3520 6250 12800 82 170 320 660 990 1900 3000 5300 10900 73 151 285 580 900 1680 2650 4750 9700 66 138 260 530 810 1520 2400 4300 8800 61 125 240 490 750 1400 2250 3900 8100 57 118 220 460 690 1300 2050 3700 7500 53 110 205 430 650 1220 1950 3450 7200 50 103 195 400 620 1150 1850 3250 6700 44 93 175 360 550 1020 1650 2950 6000 40 84 160 325 500 950 1500 2650 5500 37 77 145 300 460 850 1370 2450 5000 35 72 135 280 430 800 1280 2280 4600

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 ﬁ rst two threads. Use compounds resistant to the action of liqueﬁ ed 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.

DISCONNECT THE HEATER AND ITS MANUAL GAS SHUTOFF VALVE FROM THE GAS SUPPLY PIPING SYSTEM DURING ANY SUPPLY

NOMINAL IRON PIPE SIZE (INCHES)

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 sufﬁ cient capacity to supply the full rated gas input of the water heater as well as the requirements of all other gas ﬁ 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 speciﬁ ed 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.

Do not subject the combination gas valve to inlet gas pressures of more than 14.0” W.C. (3.48 kPa) - natural gas. A service regulator is necessary if higher gas pressures are encountered.

Gas pressure speciﬁ ed in Table 10, refer to ﬂ ow pressure taken at pressure tap of automatic gas valve while heater is operating.

TABLE 10

MANIFOLD GAS PRESSURE IN INCHES

OF WATER COLUMN (ALL MODELS*)

TYPE OF GAS

NATURAL PROPANE

3.5 (0.87 kPa) 10.0 (2.48 kPa)

Page 23

OPERATION

IMPORTANT

A qualiﬁ ed person must perform the initial ﬁ 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 at the rear 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 ﬁ lled with water and all air is expelled.

FILLING

Close the heater drain valve by turning handle clockwise.1. Open a nearby hot water faucet to permit the air in the system 2.

to escape.

Fully open the cold water inlet pipe valve allowing the heater 3.

and piping to be ﬁ lled. Close the hot water faucet as water starts to ﬂ ow.4. The heater is ready to be operated.5.

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 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 leak tested and open.

Read SEQUENCE OF OPERATION section of this manual prior to lighting and operating this appliance.

With above conditions satisﬁ ed, 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 of page

31. 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.

CHECK MANIFOLD AND INLET GAS PRESSURES.1.

CYCLE CHECK - CHECK AT LEAST ONE BURNER OPERATION 2.

- 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.

Switch power on to unit.1. Thermostat calls for heat.2. Ignition Control Board performs diagnostic check on system 3.

components. On completion of diagnostics check, the Ignition Control Board 4.

sends signal to Exhaust Inducer. Exhaust Inducer begins drawing air through appliance closing 5.

the Prover Switch. On completion of Prover Switch engagement, the Ignition 6.

Control Board begins the ignition cycle. The Ignition Control Board provides power to the Silicon 7.

Nitride Ignitor. The Silicon Nitride Ignitor heats up for approximately 17 to 8.

20 seconds. At the end of Silicon Nitride Ignitor’s warm-up, the Ignition 9.

Control Board opens the Gas Valve.

From the time the Gas Valve opens, the Ignition Control 10.

Board waits 3 seconds and then shuts off power to the Silicon

Nitride Ignitor.

From the time the Silicon Nitride Ignitor’s power is shut off,11.

the Ignition Control Board waits 3 more seconds to monitor the Flame Sensor. If the Flame Sensor does not detect a strong enough ﬂ ame, 12. 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. If the Flame Sensor detects a strong ﬂ ame, the Ignition Control 13. Board will allow the unit to operate until the thermostat is satisﬁ ed. Once the unit is satisﬁ ed, the Ignition Control Board will shut 14. off the Gas Valve and the unit will be in standby mode until another call for heat is initiated by the thermostat.

See the ﬂ ow chart on page 31 for more information.

Page 24

LIGHTING & OPERATION LABEL

FOR YOUR SAFETY READ BEFORE OPERATING

WARNING

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

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

Set thermostat to lowest setting.

Turn off all electric power to the appliance.

This appliance is equipped with an ignition device which automatically lights

4. the burner. Do not try to light the burner by hand.

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!.

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".

Turn on all electric power to the appliance.

Set thermostat to desired setting.

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.

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.

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

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.

FIGURE 22

Push in gas control knobs slightly and turn clockwise to "OFF". Do not force.

Page 25

CHECKING VENTING

OFF

PSI

OFF

GAS CONTROL KNOBS

GAS OUTLET

GAS INLET

SEALING CAP

MAIN BURNER

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 deﬁ ciencies 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 ﬁ 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 BTR connected to the venting system properly vents when tested as outlined above, return doors, windows, exhaust fans, ﬁ 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 ﬂ ue gas exhauster must be employed to assure proper venting and correct combustion.

CHECK THE IGNITER ASSEMBLY

At least once a year, check the ignitor assembly, Figure 23, and the main burner, Figure 24, for proper operation. Refer to the following ignitor assembly and main burner sections.

The main burner, ﬁ gure 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 ﬂ 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 ﬂ 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 ignitor assembly, unfasten two screws to burner cover and remove. Locate the burner with the ignitor assembly and remove screw holding burner to manifold. Slide burner out to access ignitor assembly.

Servicing of the ignitor assembly includes keeping the ignitor free of lint, scale or any other foreign debris.

FIGURE 23, IGNITOR

FIGURE 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 X, 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 X H = Btuh T

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 BTN-250 heater)

T = 15.1 seconds

H = 1050 Btu

MAINTENANCE

Btuh = ?

36.8 X 1050 = 250,000 Btuh (Compare with the BTN 250 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, ﬁ g. 14, 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 speciﬁ ed input rate is achieved.

6. Turn the gas control knob to PILOT. Remove the pressure gauge and replace the sealing cap and the Allen wrench set screw 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

It is recommended that the Temperature-Pressure Relief Valve should be checked to ensure that it is in operating condition every 6 months.

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, see Draining And Flushing on page 27. Replace the Temperature-Pressure Relief

Valve with a properly rated/sized new one, see TemperaturePressure Relief Valve on pages 12-13 for instructions on replacement.

Burn hazard.

Hot water discharge.

Keep clear of TemperaturePressure Relief Valve discharge outlet.

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

Page 27

Expansion on page 12. The Temperature-Pressure Relief Valve is 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.

It is recommended that the water heater storage tank be drained and ﬂ ushed every 6 months to reduce sediment buildup. The water heater should be drained if being shut down during freezing temperatures. See Features And Components in this manual for the location of the water heater components described below.

DRAINING AND FLUSHING

Burn harzard.

Hot water discharge.

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.

HOT WATER ODOR

On occasion, hot water may develop a strong odor. If this occurs drain the heater completely, ﬂ ush thoroughly, and reﬁ ll. If the problem persists, chlorination of the heater and replacement of the factory installed 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

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. 74060. The nipple collars on the heater will usually be damaged when removed. New pipe collars will insure that the seal is such as to prevent leakage of ﬂ 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.

Keep hands clear of drain valve discharge.

TO DRAIN THE WATER HEATER STORAGE TANK:

Turn off the electrical supply to the water heater.1.

Turn off the gas supply at the Main Gas Shutoff Valve if 2. the water heater is going to be shut down for an extended period.

Ensure the cold water inlet valve is open.3.

Open a nearby hot water faucet and let the water run until 4. the water is no longer hot.

Close the cold water inlet valve to the water heater.5.

Connect a hose to the water heater drain valve and terminate 6. it to an adequate drain.

Open the water heater drain valve and allow all the water to 7. drain from the storage tank.

Close the water heater drain valve when all water in the 8. storage tank has drained.

Close the hot water faucet opened in Step 4.9.

If the water heater is going to be shut down for an extended 10. period, the drain valve should be left open.

TO FLUSH THE WATER HEATER STORAGE TANK:

Turn off the electrical supply to the water heater.11.

Ensure the cold water inlet valve is open.12.

Open a nearby hot water faucet and let the water run until 13. the water is no longer hot. Then close the hot water faucet.

Connect a hose to the drain valve and terminate it to an 14. adequate drain.

Ensure the drain hose is secured before and during the 15. entire ﬂ ushing procedure. Flushing is performed with system water pressure applied to the water heater.

Open the water heater drain valve to ﬂ ush the storage tank.16.

Flush the water heater storage tank to remove sediment and 17. allow the water to ﬂ ow until it runs clean.

Close the water heater drain valve when ﬂ ushing is 18. completed.

Remove the drain hose.19.

Fill the water heater - see Filling The Water Heater in this 20. manual.

Turn on the electrical supply to place the water heater back 21. in operation.

Allow the water heater to complete several heating cycles to 22. ensure it is operating properly.

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 the equipment but also reduces efﬁ ciency 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.

Refer to A. O. Smith booklet, Form No. 4800, entitled “Why? When and How” for detailed description on tank inspection and cleanout. UN•LIME

and the booklet may be obtained through

your A. O. Smith dealer or distributor.

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 the A. O. Smith Product Service Division. Order Part Number 4763, 1 gallon, packed 4 gallons per case or Part Number 4813, 5 gallon container.

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 efﬁ ciency:

Once a month the heater should be ﬂ ushed. Open the drain1. valve and allow two gallons of water to drain from the heater. Inlet water valve should remain open to maintain pressure in tank.

A cleanout opening is provided for periodic cleaning of 2. the tank. Gas must be shut off and heater drained before opening cleanout.

To clean heater through cleanout opening, proceed as follows:

Drain heater.3.

Remove outer cover plate from lower side of heater jacket.4. Remove six (6) hex head screws securing tank cleanout 5. plate and remove plate.

Remove lime, scale, or sediment using care not to damage6. the glass lining.

Inspect cleanout plate gasket, if new gasket is required,7. replace with A. O. Smith part no. 99038.

Install cleanout plate. Be sure to draw plate up tight by8. tightening screws securely.

Replace outer jacket cover plate. 9.

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 the BT-80 100 models. UN•LIME with the necessary hoses and ﬁ ttings to delime your heater is also available as a kit: Up-N-Down Transfer Kit. 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, ﬁ rst prepare the heater for deliming as described in the “Why? When? and How?” booklet, Form No. 4800. Then install the long plastic male adapter ﬁ tting into the drain valve opening of the water heater. Use teﬂ on tape and hand tighten only. Do not overtighten.

Prepare the Up-N-Down Transfer Kit

The next step is the preparation on the Up-N-Down Transfer Kit, if you have not already done so:

With the 5 gallon Up-N-Down container in the vertical 1. 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 ﬁ nished deliming you will be able to plug this drilled vent with the stainless steel screw that is supplied with the kit.

Remove the container’s cap and cut the plastic membrane2. located in the 3/4” IPT opening in the cap. Take care to not damage the threads.

Find the 3/4” male adapter, apply teﬂ on tape to the threaded3. end and screw it into the 3/4” IPT opening in the cap.

Page 29

Put cap with male adapter back on the container and slide 4.

IGNITION MODULE SYSTEM

3/4” hose over end of male adapter and fasten in place using hose clamp provided.

Delime using Flo-Jug Method

Slide the hose clamp over end of hose and slide hose over 5. the male adapter in the water heater drain opening and secure in place using hose clamp.

Lift container to the “Pour” Position, see Figure 28, being 6. careful to keep the vent in the handle above the liquid level and pour the UN•LIME into the heater.

Lower container, you may have to place the container on its7. empty carton to prevent the UN•LIME from ﬂ owing back into the container.

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.

Let UN•LIME remain in the heater for 5 minutes and then8. lower the container to the “Drain” Position, see Figure 28. Deliming activity is indicated by foaming on the surface of 9.

Is the water temperature in tank below the thermostat dial • setting on the appliance thermostat (calling for heat)?

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

It is possible that the high limit (E.C.O.) has functioned • to shut off the appliance. See FEATURES — Water Temperature Control for reset procedure. Contact your serviceman if limit continues to function to shut off appliance.

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.

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:

FIGURE 28

SERVICE

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 qualiﬁ ed servicemen, 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.

TABLE 10:

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 Low ﬂ ame sense signal (make sure ﬂ ame

sensor is in burner ﬂ ame)

8 FLASHES Check ignitor

continuous ﬂ ash -> continuous ﬂ 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.

ELECTRICAL SERVICING

LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION.

VERIFY PROPER OPERATION AFTER SERVICING.

Page 30

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 “Condensate” in this manual.

OPERATIONAL CONDITIONS

SMELLY WATER

In each water heater there is installed 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 further information concerning an Anode Replacement Kit 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 ﬂ 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 ﬂ 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 ﬂ ow should the water temperature reach 195°F (91°C).

The high limit will automatically reset when the water temperature drops below 140°F (60°C). After cooling the tank temperature, turn off the water heater for at least 10 seconds by using the switch on top of the unit. Turn on the water heater. If this fails to correct the problem, contact your plumber or service representative.

Page 31

REPLACEMENT PARTS

Description of this ﬂ ow chart can be found in the “SEQUENCE OF OPERATION” section found on page 23.

SEQUENCE OF OPERATION FLOW CHART

Ignition

Switch power on

to unit.

Thermostat calls

for heat.

Ignition Control Board performs

diagnostic check on

components

Ignition Control

Board sends power

to Exhaust Inducer

Exhaust Inducer engages Prover

Switch

Control Board

opens Gas

Valve.

Ignition Control Board shuts off

Silicon Nitride

Ignitor after

3 seconds

Ignition Control

Board waits 3 more

seconds to

monitor Flame

Sensor.

Did Main

Burner Light?

Ignition Control

Board shuts off Gas

Valve and allows the Exhaust

Inducer to

purge appliance for

20 seconds.

Ignition Control Board provides

power to Silicon

Nitride Ignitor

Silicon Nitride

Ignitor

warms up for

20 seconds

YES

Ignition Control Board monitors

units until T’Stat

is satisﬁ ed.

FIGURE 29

Page 32

OPERATIONAL CHECKLIST

COMPLAINT CAUSE

*Water not hot enough Thermostat set too low. Set thermostat dial to a higher

Thermostat out of calibration. Call serviceman Recalibrate thermostat. If thermostat

*Insufﬁ cient hot water

*See WATER TEMPERATURE CONTROL WARNING (on page

11).

Water temperature too hot. Thermostat set too high. Set thermostat to a lower setting.

Heater makes sounds: sizzling. Condensation on outside of

Rumbling. Sediment accumulation on

Ticking or metallic sounds. Expansion and contraction -

Pounding. Air chambers in piping have

Combustion noises. Too much primary air. Call serviceman.

Water leaks. Drain valve not closed tightly. If drain valve cannot be closed

Gas odors. Heater is over ﬁ red Shut off gas supply to heater

Thermostat set too low. Set thermostat dial to a higher

Thermostat out of calibration. Call serviceman Recalibrate thermostat. If thermostat

Main manual gas shutoff valve partially closed.

Heater too small for demand. Space usage to give heater time

Thermostat differential is too wide.

Heater recovery is slower. Call serviceman Check gas input. If incorrect, adjust gas

tank, normal.

bottom of tank.

normal.

become waterlogged.

Overﬁ red heater; Incorrect burners or oriﬁ ce for type of gas used.

If leakage source cannot be corrected or identiﬁ ed, call serviceman.

Possible gas leaks. Shut off gas supply to heater

temperature

Open main manual gas shutoff valve to fullest extent.

to restore water temperature.

Call serviceman

Drain a quantity of water through drain valve. If rumbling persists, call a serviceman.

Drain piping system and reﬁ ll. Heater must be off while this is being done.

Call serviceman. Check and correct as necessary.

tightly, replace.

Shut off gas supply to heater and close cold water inlet valve to heater.

and call a serviceman.

and call gas company at once

USER SERVICEMAN

REMEDY

cannot be recalibrated, replace.

pressure or replace main burner oriﬁ ce.

Delime heater.

Repair or in case of suspecteed tank leakage, be certain to conﬁ rm before replacing heater.

Check for sooted ﬂ ue passage.

Check for obstructed vent line.

Check backdraft or lack of draft

Page 33

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

WATER PIPING DIAGRAMS

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.

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 34

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

TEMPERATURE GAGE

CHECK VALVE

WATER FLOW SWITCH

LEGEND

TEMPERATURE & PRESSURE

RELIEF VALVE

PRESSURE RELIEF VALVE

CIRCULATING PUMP

TANK TEMPERATURE CONTROL

DRAIN

MULTI FLUE - (1 UNIT) WITH HORIZONTAL STORAGE TANK

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).

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

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

MINIMUM

" TO 12"

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.

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 36

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

WATER FLOW SWITCH

CIRCULATING PUMP

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).

Page 37

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

TEMPERATURE GAGE

PRESSURE RELIEF VALVE

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.

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 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.

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

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

TEMPERATURE GAGE

CHECK VALVE

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.

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

CHECK VALVE

TEMPERATURE GAGE

WATER FLOW SWITCH

LEGEND

TEMPERATURE & PRESSURE

RELIEF VALVE

PRESSURE RELIEF VALVE

CIRCULATING PUMP

TANK TEMPERATURE CONTROL

DRAIN

BOOSTER WATER

TO FIXTURES

HOT WATER

TO FIXTURES

HEATER

BOOSTER

PRE-HEATED

WATER TO

BOOSTER

HOT WATER

RETURN

COLD WATER

SUPPLY

BOOSTER WATER 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.

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 41

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 OUTLET

AT STORED

TEMPERATURE

HOT WATER

RETURN

BOOSTER RETURN

(IF USED)

PIPE T&P TO

OPEN DRAIN

COLD WATER

BOOSTED

WATER

OUTLET

SUPPLY

TYPICAL

EXPANSION

TANK

BOOSTER

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.

PRE-HEATER

PIPE T&P TO

OPEN DRAIN

PRE-HEATER

PIPE T&P TO

OPEN DRAIN

MUST BE IDENTICAL HEATERS

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 42

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

COLD WATER

SUPPLY

EXPANSION

TANK

HOT WATER

TO FIXTURES

PIPE T&P TO

OPEN DRAIN

PIPE T&P TO

OPEN DRAIN

PIPE T&P TO

OPEN DRAIN

WARNING: THIS DRAWING SHOWS SUGGESTED

PIPING CONFIGURATION AND OTHER DEVICES;

MULTI-FLUE (3 UNITS)

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.

Page 43

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

TO FIXTURES

HOT WATER

PIPE T&P TO

OPEN DRAIN

HOT WATER

RETURN

AOS

STORAGE TANK

EXPANSION TANK

COLD WATER

SUPPLY

ALT. COLD WATER

CONNECTION

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.

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 44

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

ALTERNATE

LOCATION

PIPE T&P TO

OPEN DRAIN

AOS

HOT WATER TO FIXTURES

COLD WATER

SUPPLY

EXPANSION TANK

STORAGE 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.

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 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

HOT WATER

RETURN

PIPE T&P TO

OPEN DRAIN

COLD WATER

SUPPLY

PIPE T&P TO

OPEN DRAIN

EXPANSION

TANK

WARNING: THIS DRAWING SHOWS SUGGESTED

MULTI FLUE FLUE (4 UNITS)

PIPING CONFIGURATION AND OTHER DEVICES;

CHECK WITH LOCAL CODES AND ORDINANCES

FOR ADDITIONAL REQUIREMENTS.

HOT WATER

TO FIXTURES

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.

Page 46

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

TO FIXTURES

PIPE T&P TO

OPEN DRAIN

HOT WATER

RETURN

AOS

STORAGE TANK

COLD WATER

SUPPLY

ALT. COLD

WATER

CONNECTION

EXPANSION

TANK

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.

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 47

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

AOS

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

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 48

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, by and

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 prevention device (check valves etc.) is installed in the cold water supply the heater is con-

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

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 or distributed by the

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 legal rights, and you may also have other rights which vary from area to area.

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 _____________________________

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

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;

T elephone: (800) 365-0024

KEEP THIS WARRANTY POSTED ADJACENT TO THE HEATER FOR FUTURE REFERENCE.

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500 Tennessee Waltz Pkwy., Ashland City, TN 37015

Technical Support: 800-365-8170 • Parts: 800-821-2017

www.statewaterheaters.com

State SBD85 500NE Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual