A.O. Smith HW 610 warranty Limited Warranty, Conditions and Exceptions

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LIMITED WARRANTY

A. O. Smith Corporation, the warrantor, extends the following LIMITED WARRANTY to the owner of this boiler.

1.If within TEN years after initial installation of the boiler, a heat exchanger, coil or gas burner shall prove upon examination by the warrantor to be defective in material or workmanship, the warrantor, at his option will exchange or repair such part or portion. This term is reduced to FIVE years if this boiler is used for water heating purposes other than hydronic space heating.

a.This warranty is extended to the owner for all other parts or portion during the FIRST year following initial installation of this boiler.

b.The warranty on the repair or replacement of the part or portion will be limited to the unexpired term of the original warranty.

2.CONDITIONS AND EXCEPTIONS

This warranty shall apply only when the boiler is installed in accordance with local plumbing and building codes, ordinances and regulations, the printed instructions provided with it and good industry practices. In addition, an appropriately sized safety relief valve certified to the ASME Boiler and Pressure Vessel Code must have been installed and fresh, clean water used for filling and make-up purposes.

a.This warranty shall apply only when the boiler is:

(1)used at temperatures not exceeding the maximum setting of its operative and/or high limit control;

(2)used at water pressure not exceeding the working pressure shown on the boiler;

(3)used when filled with potable water, free to circulate at all times and with the heat exchanger(s) and coil(s) free of damaging scale deposits;

(4)in a non-corrosive and non-contaminated atmosphere;

(5)owned by the original purchaser;

(6)in it's original installation location;

(7)is sized in accordance with proper sizing techniques for commercial boilers;

(8)bearing a rating plate which has not been altered, defaced or removed except as required by the warrantor;

(9)fired at the factory rated input using the fuel stated on the rating plate;

(10)maintained in accordance with the instructions printed in the manual included with the boiler;

(11)in the United States, its territories or possessions, and Canada;

(12)with an intermittent circulating action and with the pump and burner operating together.

(13)in an indoor installation only.

b.Any accident to the boiler, any misuse, abuse (including freezing) or alteration of it, any operation of it in a modified form, or any attempt to repair leaks in the coil or heat exchanger will void this warranty.

3.SERVICE AND REPAIR EXPENSE

Under this limited warranty the warrantor will provide only a replacement part. The owner is responsible for all other costs. Such costs may include but are not limited to:

a.Labor charges for service, removal, repair or reinstallation of the component part;

b.Shipping, delivery, handling, and administrative charges for forwarding the replacement part from the nearest distributor and returning the claimed defective part to such distributor.

c.All cost necessary or incidental for any materials and/or permits required for installation of the replacement.

4.LIMITATION ON IMPLIED WARRANTIES

Implied warranties, including any warranty of merchantability imposed on the sale of this boiler under state law are limited to one (1) year duration for the boiler or any of its parts. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.

5.CLAIM PROCEDURE

Any claim under this warranty should be initiated with the dealer who sold the boiler, or with any other dealer handling the warrantor’s products. If this is not practicable, the owner should contact:

U. S. Customers

Canadian Customers

A. O. Smith Corporation

A. O. Smith Enterprises Ltd.

500 Tennessee Waltz Parkway

P. O. Box, 310 - 768 Erie Street

Ashland City, TN 37015

Stratford, Ontario N5A 6T3

Telephone: 1-800-323-2636

Telephone: 1-800-265-8520

a.The warrantor will only honor replacement with identical or similar parts thereof which are manufactured or distributed by the warrantor.

b.Dealer replacements are made subject to in-warranty validation by warrantor.

6.DISCLAIMERS

NO OTHER EXPRESS WARRANTY HAS BEEN OR WILL BE MADE IN BEHALF OF THE WARRANTOR WITH RESPECT TO THE MERCHANT- ABILITY OF THE BOILER OR THE INSTALLATION, OPERATION, REPAIR OR REPLACEMENT OF THE BOILER. 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 TORT.

a.Some states or provinces 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 specific legal rights, and you may also have other rights which vary from state to state.

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 boiler’s rating plate.

Owner____________________________________________________________________________________________________________________

Installation Address__________________________________________________________________________________________________________

City and State/Province _________________________________________________________Postal/Zip Code_ _______________________________

Date Installed _________________________________ Model No. ___________________________ Serial No.________________________

Dealer’s Name ____________________________________________________________________ Phone No.________________________________

Dealer’s Address____________________________________________________________________________________________________________

FILL IN DATA AND KEEP FOR FUTURE REFERENCE

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Contents Tennessee Waltz Parkway Ashland City, TN Models HW 300, 399, 420, 520, 610Important Definitions Safe INSTALLATION, USE and ServiceGeneral Safety Table of Contents Propane Natural Dimensions and Capacity Data27.7 33.3 Recovery CapacitiesIntroduction High Altitude InstallationsLIQUefied petroleum gas models Controls and Function GPM LPM Manual Reset High LimitHigh Limit Switch Safety Flow Switch Thermal BalancerSafety Relief Valves Tank Temperature Control Required Ability GeneralThermometers Drain Valve Not SuppliedUnconfined Space Confined Space S. InstallationsCanadian Installations AIR RequirementsLeveling Installation ClearancesTypical Boiler Installation VentingVent Connection Vent Pipe InstallationConnecting Boiler to a Common Vent Draft HoodMultiple Vent Table Venting Sidewall Optional Power Vent SystemVenting System Model HW-300 Boiler Combined Vent Sizing TablesONE Boiler Installed Independent of the Primary System System InstallationsConventional Installations LINEAR-TEMP InstallationsMinimum Branch Sizes to Boilers NO. Suggested Items for InstallationSchematic of the LINEAR-TEMPSYSTEM Boiler Inlet Outlet SizesGAS Connections Correct GAS Purging and SizingModel Rated Manifold Pressure Number Input Natural Propane ExampleSpecific Multiplier Gravity GAS Pressure RegulatorsWiring Connections WiringHW 300 thru 670. Natural and Propane GAS U.S. & Canada HW 300 toD. System Single Stage I.I.D. Honeywell GAS ValveLINEAR-TEMP Installations Boilers and Secondary Circulator are Controlled by Page MODELS, Jucntion BOX W/4 Terminals Canadian MODELS, Junction BOX W/6 TerminalsCanadian MODELS, Junction BOX W/6 Terminals Schematic MODELS, Junction BOX W/4 Terminals MODELS, Junction BOX W/4 Terminals USE this Table for Correct Pump and Water Pipe Size Wiring Figures 16 and 17 on Pages 24Piping Commercial Boiler with Vertical TankCommercial Boiler with Horizontal Tank Commercial Boiler with Vertical TANK, CER-TEMP Wiring Figures 21 to 27 on Pages 28 toHW-300 HW-399 HW-420 HW-520 Three HW-520s, HW-610s or HW-670s UP-FLOW Model USE this Table for Correct Pump and Water Pipe Size Main Burner Operation and START-UP InstructionsFilling the System Pilot and Main BurnerPilot Burner Electronic Ignition Consumption Rate Checking and Adjusting the InputRefer to Operating at Full Input or Full Capacity Stage Main Burner Operation Flame Current Sensed For Your Safety Read Before Lighting URN Pilo T Firing VA LVE Counterclockwise SET T HE Thermostat to Lowwest SettingManual Reset High Limit Switch Continuity Test General MaintenanceRelief Valve Internal Contaminants Cleaning and Flushing InstructionsPRE-TROUBLESHOOTING HOT Water Supply Boilers Preventive MaintenanceCER-TEMP 80 Recovery System Checkout Procedure TroubleshootingYES Is there excessive draft conditions that may cause pilot Burner ignition problems?Is ceramic insulator surrounding the electrode in good Condition not cracked or broken?MV & MV/PV? Replace pilot burner assembly OFF LED Status and TroubleshootingLocation of LEDs Flame LED Yellow Status LED GreenNo Call for Heat Not applicable None OFF Conditions and Exceptions Limited Warranty