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23

NEW BOILER LIMITED WARRANTY

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

1.

If within TEN years after initial installation of the boiler, the heat exchanger 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 volume hot water supply 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 water used for filling and makeup purposes;

a.

This warranty shall apply only when the boiler is used:
(1)

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

(2)

at water pressure not exceeding the working pressure shown on the boiler;

(3)

when filled with boiler water, free to circulate at all times and with the heat exchanger free of damaging scale deposits;

(4)

in a noncorrosive and non-contaminated atmosphere;

(5)

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

(6)

at a water velocity flow rate, not exceeding or below the Boiler's designed flow rates;

b.

Any accident to the boiler, any misuse, abuse (including freezing) or alteration of it, any operation of it in a modified form 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 material and/or permits required for installation of the replacement.

4.

LIMITATIONS 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 or provinces 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 the 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 practical, the owner should contact:

U.S. Customers

Canadian Customers

A. O. Smith Water Products Company

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: 800 323-2636

Telephone: (519) 271-5800

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 ON BEHALF OF THE WARRANTOR WITH RESPECT TO THE MERCHANTABILITY
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 or province to province.

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 or Province_______________________________________________________Postal/Zip Code___________________________

DateInstalled_____________________________Model No.____________________________Serial No._________________________________

Dealer’s Name________________________________________________________________________________________________________

Dealer’s Address______________________________________________________________PhoneNo.________________________________

FILL IN WARRANTY AND KEEP FOR FUTURE REFERENCE

Summary of Contents for 500

Page 1: ...f any part has been under water Immediately call a qualified service technician to inspect the boiler and to replace any part of the control system and any gas control which has been under water CAUTI...

Page 2: ...er is installed in a carpeted alcove the entire floor must be covered with concrete blocks or use the A O Smith Combustible Floor Kit Base FLAMMABLE ITEMS PRESSURIZED CONTAINERS OR ANY OTHER POTENTIAL...

Page 3: ...s the user s hot water needs This will also provide the most energy efficient operation of the water heater and minimize scale formation SETTING THE WATER HEATERTEMPERATUREAT 120 F WILL REDUCE THE RIS...

Page 4: ...D The EMC5000 control system is a fully integrated state of the art electronic control system It consists of sensors output devices a power switch a 24vac transformer wiring and the following printed...

Page 5: ...5 Figure 1A CCB Drawing 211758...

Page 6: ...6 Figure 1B FCB Drawing 211759...

Page 7: ...7 Figure 1C PDB Drawing 211760...

Page 8: ...mp Provides electrical power to directly operate a pump or the coil of an externally connected contactor Powered Vent CCB 24vac optional Provides electrical power to operate a powered vent Low and Hig...

Page 9: ...the factory or by authorized trained personnel only Once set at installation they generally remain that way for the duration of the life of the product If a switch is changed power must be cycled bef...

Page 10: ...checks the status of the flame sensor 16 Steps 12 through 15 are then repeated for stage 3 and 4 17 The system is now in the heating mode with all four stages on and will remain in this mode until the...

Page 11: ...h Speed Blower is on Low Speed Blower Prover when either the High or Low Speed Blowers are on Igniter Current for an on condition approximately 18 seconds after the Igniter is turned on until the igni...

Page 12: ...e turned off Pre Purge State If the stage does not have a blower this state is skipped and the system advances to the Heat Igniter State Otherwise the Blower is turned on After 10 to 34 seconds 34 sec...

Page 13: ...tial setpoint before a call for heat can be generated HIGH LIMIT DIFFERENTIAL SETPOINT ADJUSTMENTPROCEDURE The High LImit Differential Setpoint has a range of 1 Degree F to 50 Degrees F for all models...

Page 14: ...14 CONNECTION DIAGRAM Drawing 211769 FIGURE 4...

Page 15: ...15...

Page 16: ...screens to reach a desired item and to change setpoints and user settings They have an auto increment decrement feature for some of the configurations and values When you first press one of the keys...

Page 17: ...ode Flashing HARD Caused when the micro executes software code in an incorrect manner Contact factory A D Fail CCB Error in analog input reading Flashing HARD Caused when the Analog to Digital convert...

Page 18: ...on the connector at the end of the probe cable The value should be approximately 10K ohms value will change slightly with changes in temperature Outlet Probe Outlet probe shorted or open Flashing HAR...

Page 19: ...system to run through all operating steps up to flame sensing 7 Proper operation of the flame sensing circuit can be almost completely verified through the use of a 14007 diode The anode end of the d...

Page 20: ...20 NOTES...

Page 21: ...21 NOTES...

Page 22: ...22 NOTES...

Page 23: ...ed 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 or province...

Page 24: ...24 ADIVISION OFA O SMITH CORPORATION MC BEE SC RENTON WA STRATFORD ONTARIO VELDHOVEN THE NETHERLANDS www hotwater com...

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