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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:

•  UL - Underwriters Laboratories Inc.

•  ANSI - American National Standards Institute

•  NFPA - National Fire Protection Association

•  ASME - American Society of Mechanical Engineers

•  AHRI - Air-Conditioning, Heating and Refrigeration Institute

•  CAN - Canada

•  EPACT - Energy Policy Act

•  CSA - Canadian Standards Association 
This  gas-fired  water  heater  is  design  certified  by  Underwriters 

Laboratories Inc. under American National Standard/CSA Standard 

 

for Gas Water Heaters ANSI Z21.10.3 • CSA 4.3 (current edition).

QUALIFIED INSTALLER OR SERVICE AGENCY

Installation and service of this water heater requires ability equivalent 

to that of a Qualified Agency (as defined by ANSI below) in the field 

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: “Qualified Agency” - “Any individual, 

firm,  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 qualified (as defined by ANSI above) and licensed or 

certified 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.

PREPARING FOR THE INSTALLATION

1.  Read the General Safety Information section, page 4 of this 

manual  first  and  then  the  entire  manual  carefully.    If  you 

don’t follow the safety rules, the water heater will not operate 

properly.  It could cause DEATH, SERIOUS BODILY INJURY 

AND/OR PROPERTY DAMAGE.

  This  manual  contains  instructions  for  the  installation, 

operation, and maintenance of the gas-fired water heater.  It 

also contains warnings throughout the manual that you must 

read and be aware of.  All warnings and all instructions are 

essential to the proper operation of the water heater and your 

safety.  Since we cannot put everything on the first few pages, 

READ THE ENTIRE MANUAL BEFORE ATTEMPTING TO 

INSTALL OR OPERATE THE WATER HEATER.

2.  The  installation  must  conform  with  these  instructions  and 

the local code authority having jurisdiction. In the absence 

of local codes, the installation must comply with the current 

editions  of  the  National  Fuel  Gas  Code,  ANSI  Z223.1/

NFPA 54 or CAN/CSA-B149.1 the Natural Gas and Propane 

Installation  Code.  All  documents  are  available  from  the 

Canadian Standards Association, 8501 East Pleasant Valley 

Road,  Cleveland,  OH  44131.  NFPA  documents  are  also 

available  from  the  National  Fire  Protection  Association,  1 

Batterymarch Park, Quincy, MA 02269. 

3.  If  after  reading  this manual  you  have  any questions  or  do 

not understand any portion of the instructions, call the local 

gas utility or the manufacturer whose name appears on the 

rating plate.

4.  Carefully  plan  the  place  where  you  are  going  to  put  the 

water  heater.    Correct    combustion,  vent  action,  and  vent 

pipe installation are very important in preventing death from 

possible carbon monoxide poisoning and fires, see Figures 

3 and 7.

  Examine the location to ensure the water heater complies with 

the Fact to Consider About The Location section in this manual.

5.  For California installation this water heater must be braced, 

anchored,  or  strapped  to  avoid  falling  or  moving  during 

an  earthquake.    See  instructions  for  correct  installation 

procedures.  Instructions may be obtained from California 

Office  of  the  State  Architect,  400  P  Street,  Sacramento, 

 

CA 95814.

6.  Massachusetts Code requires this water heater to be installed 

in  accordance  with  Massachusetts  248-CMR  2.00:  State 

Plumbing Code and 248-CMR 5.00.

7.  Complies  with  SCAQMD  rule  #1146.2  and  districts  having 

equivalent NOx requirements.

INTRODUCTION

Содержание BL-80

Страница 1: ...safety messages could result in death or serious injury This manual must remain with the water heater 500 Tennessee Waltz Parkway Ashland City TN 37015 Low Lead Content WARNING If the information in t...

Страница 2: ...gs for Confined Spaces 13 Outdoor Air Through Two Openings 13 Outdoor Air Through One Opening 13 Outdoor Air Through Two Horizontal Ducts 14 Outdoor Air Through Two Vertical Ducts 14 Air From Other In...

Страница 3: ...hazard what can happen if you do not follow the safety message and how to avoid the risk of injury DANGER WARNING CAUTION CAUTION DANGER indicates an imminently hazardous situation which if not avoide...

Страница 4: ...4 GENERAL SAFETY INFORMATION...

Страница 5: ...you don t follow the safety rules the water heater will not operate properly It could cause DEATH SERIOUS BODILY INJURY AND OR PROPERTY DAMAGE This manual contains instructions for the installation op...

Страница 6: ...2 1 1 2 12 1 2 CM 157 6 147 3 74 9 64 1 40 3 10 2 38 7 40 6 5 1 NPT NPT 31 8 Model INPUT RATE F 30 40 50 60 70 80 90 100 110 120 130 140 GPH 246 184 147 123 105 92 82 74 67 61 57 53 C 17 22 28 33 39 4...

Страница 7: ...vicing and proper operation of the water heater Installation of water heater must be accomplished in such a manner that if the tank or any connections should leak flow will not cause damage to the str...

Страница 8: ...per and inefficient operation of the water heater producing carbon monoxide gas in excess of the safe limits This could result in serious injury or death Contact your local gas supplier for any specif...

Страница 9: ...rtain it does not sag thereby obstructing the combustion air flow HARD WATER Where hard water conditions exist water softening or the threshold type of water treatment is recommended This will protect...

Страница 10: ...manufacturer s specifications If a positive lock up regulator is required follow these instructions 1 Positive lock up gas pressure regulators must be rated at or above the input Btu hr rating of the...

Страница 11: ...s not intended for the constant relief of thermal expansion A properly sized thermal expansion tank must be installed on all closed systems to control the harmful effects of thermal expansion Contact...

Страница 12: ...ature Pressure 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 th...

Страница 13: ...eater and the risk of fire or explosion may result It can also create a risk of asphyxiation LOUVERS AND GRILLES Thefreeareasofthefreshairopeningsintheinstructionsthatfollowdonot takeintoaccountthepre...

Страница 14: ...e 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 commun...

Страница 15: ...er heater unless it is vented to the outdoors and has adequate air supply to avoid risks of improper operation explosion or asphyxiation Align the legs of the draft hood with the holes provided Insert...

Страница 16: ...IN INCHES MAXIMUM CAPACITY OF PIPE IN CUBIC FEET PER HOUR LENGTH IN FEET NOMINAL IRON PIPE SIZES INCHES INPUT IN THOUSANDS BTU HR 1 2 3 4 1 1 1 4 1 1 2 2 2 1 2 3 4 10 175 360 680 1400 2100 3960 6300 1...

Страница 17: ...allation shown in the Figures 15 and 16 Contaminants in the gas lines may cause improper operation of the gas control valve that may result in fire or explosion Before attaching the gas line be sure t...

Страница 18: ...ter several tries turn the gas control knob clockwise to OFF and call your service technician or gas supplier SEE FIGURE A DANGER Hotter water increases the risk of scald injury Consult the instructio...

Страница 19: ...r at the water heater Mixing valves are available at plumbing supply or hardware stores see Figure 6 Follow manufacturer s instructions for installation of the valves Before changing the factory setti...

Страница 20: ...See Condensation in this section 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 c...

Страница 21: ...replaced At least once a year a visual inspection should be made of the main burner and pilot burner see Figure 19 Inspect burner fl ames through viewport Flames should be very small with a blue haze...

Страница 22: ...ter 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 cooki...

Страница 23: ...drained before opening cleanout To clean heater through cleanout opening proceed as follows 1 Drain heater 2 Remove outer cover plate from lower side of heater jacket 3 Remove six 6 hex head screws se...

Страница 24: ...er is no longer hot 4 Close the cold water inlet valve to the water heater 5 Connect a hose to the water heater drain valve and terminate it to an adequate drain 6 Open the water heater drain valve an...

Страница 25: ...an condense on the cooler surfaces of the tank Droplets form and drip onto the burner or run on the floor This is common at the time of start up after installation and when incoming water is cold I Wa...

Страница 26: ...Gas Control Replace Gas Control PILOT OUTAGE Dirty pilot burner Clean pilot assembly Thermocouple malfunction Replace pilot assembly and or thermocouple Defective Gas Control Replace Gas Control Ther...

Страница 27: ...ocal 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 s...

Страница 28: ...trol 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 Cont...

Страница 29: ...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 C...

Страница 30: ...ired 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 SINGLE FLUE...

Страница 31: ...rature 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 Temper...

Страница 32: ...he 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 SINGLE FLUE 2 UNITS TWO TEMPERATU...

Страница 33: ...33 NOTES...

Страница 34: ...34 NOTES...

Страница 35: ...gas type venting connections combustion air voltage wiring or fusing Failure to follow applicable codes Failure to follow printed instructions Improper installation sizing delivery or maintenance Cla...

Страница 36: ...36 500 Tennessee Waltz Pkwy Ashland City TN 37015 Technical Support 800 527 1953 Parts 800 433 2545 www hotwater com Copyright 2014 A O Smith Corporation All rights reserved...

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