American Water Heater 98 Gallon 80 Thermal Efficiency UltraLow NOx Heavy Duty Commercial Gas Water Heater User Manual

							31October 2009 | Printed in U.S.A. | © A. O. Smith For Technical Information and Automated Fax Service, call 800-527-1953 or visit www.hotwater.com.  AOSCG61170 | PAGE 1 of 1
  A. O. Smith Corporation reserves the right to make product changes or im\
provements without prior notice.NOTES:
1. Preferred piping diagram.
2.  The temperature and pressure relief valve setting shall not exceed press\
ure 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 w\
ater 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.SINGLE FLUE - (2 UNITS)
LEGEND
TEMPERAT URE & PRESSURE
RELIEF VA LV EPRESSURE RELIEF VA LV ECIRCULATING PUMPTANK TEMPERAT URE CONTROLDRAIN
FULL PORT BALL VA LV
E
TEMPERATURE GAGEWATER FLOW SWITCH
CHECK VA LV
E
WARNING: THIS DRAW ING SHOWS SUGGESTEDPIPING CONFIGURATION AND OTHER DEVICES;
CHECK WITH LOCAL CODES AND ORDINANCES
FOR ADDITIONAL REQUIREMENTS.
FINISHED
FLOOR
HOT WA
TER 
TO  FIXTURES
HOTCOLDH OT HOT WATER RETURN
FROM FIXTURES
COLD
COLD WATER
SUPPLY
EXPANSION
TANKPIPE T&P TO
OPEN DRAIN
PIPE T&P TO
OPEN DRAIN 
						

							32October 2009 | Printed in U.S.A. | © A. O. Smith For Technical Information and Automated Fax Service, call 800-527-1953 or visit www.hotwater.com.  AOSCG61180 | PAGE 1 of 1
  A. O. Smith Corporation reserves the right to make product changes or im\
provements without prior notice.NOTES:
1. Preferred piping diagram.
2.  The temperature and pressure relief valve setting shall not exceed press\
ure 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 w\
ater 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.SINGLE FLUE - (2 UNITS) TWO TEMPERATURE ONE PRE-HEATER/ONE BOOSTER HEATER
LEGEND
TEMPERAT URE & PRESSURE
RELIEF VA LV EPRESSURE RELIEF VA LV ECIRCULATING PUMPTANK TEMPERAT URE CONTROLDRAIN
FULL PORT BALL VA LV
E
TEMPERATURE GAGEWATER FLOW SWITCH
CHECK VA LV
E
WARNING: THIS DRAW ING SHOWS SUGGESTEDPIPING CONFIGURATION AND OTHER DEVICES;
CHECK WITH LOCAL CODES AND ORDINANCES
FOR ADDITIONAL REQUIREMENTS.
FINISHED
FLOORHOT WA TER
TO  FIXTURES
HOT WATER RETURN
HOT HOT
COLD
HIGH
TEMPERATURE RETURN
HIGH
TEMPERATURE OUTLET
COLD WATER
SUPPLY
EXPANSION
TANK
PIPE T&P TO
OPEN DRAIN
PIPE T&P TO
OPEN DRAIN
BOOSTERHEATER 
						

							33
NOTES 
						

							34
NOTES 
						

							35
LIMITED WARRANTY
 EFFECTIVE
For 3 Years, in  the  event  of a tank  leak,  we will  repair  or, at  our 
discretion, replace the defective water heater.
For 1 Year , in the event of part failure, we will repair or , at our 
discretion, replace the defective part.
We warrant  this  product  against  defects  in materials  or 
workmanship  as described  in this  document  if installed  within 
the United  States or Canada  and provided  the  product  remains 
at its original place of installation.
W
arranty coverage  begins the date  of installation  OR the date  of 
 WHATS COVERED
Subject  to these  terms,  in the  event  of defect  in materials  and/
or workmanship  resulting in a tank  leak during  the 
years, we will:
 Replace the water heater should the tank leak .
Subject to these  terms,  in the  event  of a defect  in materials  and/or 
workmanship appearing during the , we will:
 Repair or, at  our  discretion,  replace any part  of the  water  
heater  covered  under this limited  warranty  excluding  parts 
s ubject  to normal  maintenance  (Example:  non-electroni c 
Service/labor, shipping,  delivery, installation,  handling or any 
other costs are not covered at any time under this warranty.
Any  replacement  part or product  will be warranted  only for 
the  unexpired  portion of the  original  water heater ’s limite d 
warranty period.
If 
an identical  model is no  longer  available  due to a change  in law , 
regulation, or standard,  we will  replace  the product  with one having 
comparable capacity  and input.  In these  instances,  the owner  will 
have the option  of paying  the difference  between  what was paid  for 
the original  model and the new  model  with the additional  features, 
or receiving a refund  of the  portion  of the  purchase  price, on a 
pro-rata basis allocable to the unexpired portion of the warranty.
 WHA TS NOT COVERED
 Problems  caused by improper:  gas supply  line sizing,  gas type, 
venting, connections, combustion air , voltage, wiring, or fusing   
   Failure to follow applicable codes    
   Failure to follow printed instructions    
   Improper installation,  sizing, deliver y, or maintenance    
   Claims related to rust, noise, smell, or taste of water    
   Failure to conduct authorized factory start up if required    
    Alterations to the water heater    
   Non-outdoor heaters installed outdoors    
   Damages due to a failure to allow for thermal expansion    
  Heat  exchanger  failure due to lack  of adequate / proper supply
 
of water    
   Heaters moved from their original location    
    Service  trips to explain  proper installation,  use, or maintenance 
of  the  product/unit  or to describe  compliance  requirements
 
under applicable codes and regulations    
   Charges  related to accessing  your heater  including  but not 
limited to door/wall removal, equipment rental, etc.    
   Replacement parts after expiration of this warranty    
 LIMIT ATIONS
NOTWITHST ANDING ANYTHING  ELSE TO THE  CONTRA RY, 
 
 
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AL L OTHER  WARRANTIES  INCLUDING  A WA RRANTY
 
OF  MERCHANT ABILITY OR  FITNESS  FOR PART ICULAR 
 
P URPOSE  ARE EXPRESS LY DISCLAIMED.  SELLER SHALL 
NOT BE  LIABLE  FOR ANY CONSEQUENTIAL,  INCIDENTAL, 
SPECIAL, PUNITIVE  OR OTHER  INDIRECT  DAMAGES.   TO TAL 
LIABILITY  ARISING  AT AN Y TIME  SHALL NO T EXCEED THE 
PURCHASE  PRICE PAID  WHETHER  BASED ON CONTRACT, 
TORT, STRICT  LIABILITY  OR ANY OTHER LEGAL  THEO RY.
SERVICE INQUIRIES:
For service inquiries call the telephone number listed below.  Be prepared to provide the following information : 
name, address,  and telephone  number; the model  and serial  number  of the  water  heater;  proof of installation;  and a clear  descri ption 
of the problem.
   
For your records, fill in the product:
Serial: __________________
_
Model: ___________________
 
U.S. Customers:
 American  Water Heaters
 500 Princeton Road
 Johnson City , TN 37605
 800-999-9515
 www.americanwaterheaters.com
COMMERCIAL
WA TER HE ATER 
LIMITED W ARRANTY 
						

							36
P.O.	Box	1597,	Johnson	City,	TN	37605
Phone:	800-456-9805	•	Fax:	800-999-5210 www.americanwaterheater.com
Copyright	©	2015	 American	Water	Heater	Company.	 All	rights	reserved.www.americanwaterheate r.co m
American Wa ter Heater
Johnson Cit y, TN 37605