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500 Tennessee Waltz Parkway
Ashland City, TN 37015
Low Lead Content
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 y
r
yin this ener y e
We a
re iate y
r
PLACE THESE INSTRUCTIONS ADJACENT TO HEATER AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE.
PRINTED 0814
COMMERCIAL GAS WATER HEATERS
ient water heater
n den e in
r r d
ts
Instruction Manual
MODELS BTP 139(A) Thru 370(A)
INSTALLATION - OPERATION - SERVICE
- MAINTENANCE - LIMITED WARRANTY
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.
SERIES 104/105
194186-003
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Table of Contents
Related Manuals for A.O. Smith 104 Series
Summary of Contents for A.O. Smith 104 Series
- Page 1 Instruction Manual COMMERCIAL GAS WATER HEATERS MODELS BTP 139(A) Thru 370(A) SERIES 104/105 INSTALLATION - OPERATION - SERVICE - MAINTENANCE - LIMITED WARRANTY 500 Tennessee Waltz Parkway Ashland City, TN 37015 Low Lead Content WARNING: If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, personal injury or death.
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Page 2: Table Of Contents
TABLE OF CONTENTS SAFE INSTALLATION, USE AND SERVICE Air r ther Ind a es APPROVALS ent C nne ti n GENERAL SAFETY INFORMATION WATER HEATER INSTALLATION 19-22 Pre autions Water Line C nne ti ns Grounding Instru tions T P al e Dis har e Pi e Hydrogen Gas Flammable Installation Diagrams - Top Inlet/Outlet Usage INTRODUCTION... -
Page 3: Safe Installation, Use And Service
SAFE INSTALLATION, USE AND SERVICE The proper installation, use and servi ing of this water heater is extremely important to your safety and the safety of others Many safety-related messages and instru tions 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 instru tions throughout this manual It is very important that the meaning of ea h safety message is understood by you and others who install, use, or servi e this water heater This is the safety alert symbol. -
Page 4: General Safety Information
GENERAL SAFETY INFORMATION Fire or Explosion Hazard Fire Hazard For continued protection against Do not store or use gasoline or other flammable vapors and risk of fire: liquids in the vicinity of this or any other appliance. Do not install water heater on Avoid all ignition sources if you smell gas. -
Page 5: Pre Autions
GENERAL SAFETY INFORMATION Read and understand this instruction Explosion Hazard manual and the safety messages herein before installing, operating or Overheated water can cause servicing this water heater. water tank explosion. Failure to follow these instructions and Properly sized temperature and safety messages could result in death pressure relief valve must be or serious injury. -
Page 6: Introduction
INTRODUCTION Thank You for pur hasing this water heater Properly installed Warranty on this produ t is limited and ould be void in the and maintained, it should give you years of trouble free servi e event the unit is not installed per the instru tions in this manual and/or not started up by an authorized fa tory trained servi e/ ABBREVIATIONS USED start-up provider... -
Page 7: Features And Components
FEATURES AND COMPONENTS HIGH LIMIT SWITCH BAROMETRIC DRAFT CONTROL The dual bulb ontroller ( g 1) ontains the high limit (energy utoff) The heater is equipped with a double a ting barometri draft sensor The high limit swit h interrupts main burner gas ow should ontrol This ontrol assembly is fa tory adjusted to automati ally the water temperature rea h 205 F (96 C) regulate the himney draft imposed on the unit... -
Page 8: Installation Considerations
INSTALLATION CONSIDERATIONS ROUGH IN DIMENSIONS FIGURE 5. TABLE 1 . MODELS BTP-139(A) THROUGH BTP-370(A) APPROX. SHIP. WT. MODELS (LBS.) ASME STD. BTP-139/A 74 3/4" 65" 26 3/4" 6" 21 3/8" 27 3/4" 38" 85 1/4" 1 1/2" 1 1/2" BTP-199/A 74 3/4"... -
Page 9: Installation Considerations
INSTALLATION CONSIDERATIONS TABLE 2. HEATER PERFORMANCE DATA BTP MODELS STORAGE MAXIMUM RECOVERY RATE RECOVERY RATE MODELS CAPACITY IMPUT RATING BTU/HR. AMPERES GPH@100°F RISE GPH@140°F RISE U.S. GALLONS 120V, 60Hz, 10 BTP-139/A 140,000 BTP-199/A 199,000 BTP-270/A 270,000 BTP-370/A 370,000 Models with letter A following the model number have the optional ASME tank onstru tion The BTP-370 is available in natural gas only TABLE 3. -
Page 10: Lo Ating The Water Heater
INSTALLATION CONSIDERATIONS LOCATING THE WATER HEATER The heater must not be lo ated in an area where it will be subje t to freezing CAUTION Lo ate it near a oor drain The heater should be lo ated in an area where leakage from heater or onne tions will not result in damage to adja ent area or to lower oors of Property Damage Hazard... -
Page 11: Insulation Blanket
is to redu e the standby heat loss en ountered with storage tank heaters The water heaters overed by this manual meet or ex eed the Energy Poli y A t standards with respe t to insulation and standby heat loss requirements, making an insulation blanket unne essary Should you hoose to apply an insulation blanket to this... -
Page 12: High Altitude Installations
CIRCULATING PUMP WIRING DIAGRAM STORAGE TANK OR BUILDING RECIRCULATION FIELD SUPPLIED TEMPERATURE CONTROL Breathing Hazard - Carbon Monoxide Gas INSTALLED IN THE STORAGE TANK OR CIRCULATING LOOP RETURN LINE NOTE: USE SEPARATE 120 VAC POWER Under no circumstances should SUPPLY FOR PUMP CIRCUIT. DO NOT SHARE POWER WITH WATER HEATER AS THIS the input exceed the rate shown MAY CAUSE ELECTRICAL LINE NOISE AND... -
Page 13: Installation Requirements
INSTALLATION REQUIREMENTS 4 When installing multiple water heaters in the same gas supply GAS SUPPLY SYSTEMS system it is re ommended that individual positive lo k-up gas Low pressure building gas supply systems are defined as those pressure regulators be installed at ea h unit systems that annot under any ir umstan es ex eed 14... -
Page 14: Dishwashing Ma Hines
A properly sized thermal expansion tank must be installed on losed systems to ontrol the harmful effe ts of thermal HOT WATER expansion Conta t a lo al plumbing servi e te hni ian to have a OUTLET thermal expansion tank installed See Water Line Conne tions on page 19 and the Water Piping 12”... -
Page 15: Contaminated Air
CONTAMINATED AIR No valve or other obstru tion is to be pla ed between the Temperature-Pressure Relief Valve and the tank Do not onne t dis harge piping dire tly to the drain unless a 6 (15 2 m) air gap is provided To prevent bodily injury, hazard to life, or property damage, the relief valve must be allowed to dis harge Breathing Hazard - Carbon Monoxide Gas water in adequate quantities should ir umstan es demand If... -
Page 16: Un On Ned Spa E
UNCONFINED SPACE DIRECT VENT APPLIANCES Applian es installed in a Dire t Vent on guration that derive all An Un on ned Spa e is one whose volume IS NOT LESS THAN air for ombustion from the outdoor atmosphere through sealed 50 ubi feet per 1,000 Btu/hr (4 8 ubi meters per kW) of the intake air piping are not fa tored in the total applian e input Btu/ total input rating of all applian es installed in the spa e Rooms... -
Page 17: Fresh Air Opening For Con Ned Spa Es
FRESH AIR OPENINGS FOR CONFINED SPACES Alternatively a single permanent opening, ommen ing within 12 in hes (300 mm) of the top of the en losure, The following instru tions shall be used to al ulate the size, shall be provided See Figure 12 The water heater shall number and pla ement of openings providing fresh air for have learan es of at least 1 in h (25 mm) from the sides ombustion, ventilation and dilution in... -
Page 18: Outdoor Air Through Two Verti Al Du Ts
OUTDOOR AIR THROUGH TWO VERTICAL DUCTS When du ts are used, they shall be of the same ross se tional area as the free area of the openings to whi h they onne t The illustrations shown in this se tion of the manual are a The minimum dimension of re tangular air du ts shall be not less referen e for the openings that provide fresh air into on ned than 3"... -
Page 19: Ent C Nne Ti N
VENT CONNECTION Where an existing himney or vent is to be used, be sure that the himney or vent has adequate apa ity for the Vent onne tions must be made to an adequate sta k number and sizes of gas applian es being vented through or himney Refer to the National Fuel Gas Code ( urrent it Inspe t the himney or vent and remove all soot or other edition) or to the vent pipe manufa turer s gas vent and... -
Page 20: Installation Diagrams - Top Inlet/Outlet Usage
This water heater is provided with a properly rated/sized and TUBE INLET INSTALLATION erti ed ombination temperature - pressure (T&P) relief valve by the manufa turer See Temperature-Pressure Relief Valve on pages 14-15 for information on repla ement and other requirements CAUTION Water Damage Hazard... -
Page 21: Heater Wiring
HEATER WIRING All ele tri al work must be installed in a ordan e with the urrent edition of the National Ele tri al Code ANSI/NFPA No 70 or Canadian Ele tri al Code CSA C22 1 and must onform to all lo al ode authority having jurisdi tion AN ELECTRICAL GROUND IS REQUIRED TO REDUCE RISK OF ELECTRICAL SHOCK OR POSSIBLE ELECTROCUTION If any of the original wire as supplied with the water heater must be repla ed, use only type 105 C thermoplasti or equivalent 250 C type F must be... -
Page 22: Gas Piping
GAS PIPING Apply joint ompounds (pipe dope) sparingly and only to the male threads of pipe joints Do not apply ompounds to the rst two threads Conta t your lo al gas servi e ompany to ensure that adequate Use ompounds resistant to the a tion of lique ed petroleum gases gas servi e is available and to review appli able installation odes GAS METER SIZE –... -
Page 23: Startup And Operation
START-UP AND OPERATION Atta h a gas pressure gauge or manometer to upstream side of main gas o k and a gas pressure gauge or manometer to the manifold pressure tapping Che k voltage at dis onne t swit h to make ertain that it Fire or Explosion Hazard mat hes that shown on the burner label Apply a few drops of No 20 SAE non-detergent oil to the... -
Page 24: Se Uen E O Operation Flow Chart
SEQUENCE OF OPERATION FLOW CHART Des ription of this ow hart an be found in the SEQUENCE OF OPERATION se tion found on page 25 START THERMOSTAT CALLS FOR HEAT. POWER INTERUPTION. SYSTEM SHUTS OFF. RESTARTS SAFE WHEN POWER IS RESTORED. START SAFE START CHECK... -
Page 25: Lighting & Operation Label
LIGHTING & OPERATION LABEL FIGURE 21. LABEL FOR NATURAL AND LP GAS MODELS... -
Page 26: Adjustments
ADJUSTMENTS time required for the heater to onsume 5 ubi feet of gas The a tual rate may then be estimated by using the formula below 1 Che k gas line pressure and manifold pressure (table 10) (3600/T) x H Btuh and adjust as required 2 Che k barometri damper for proper operation Parts must... -
Page 27: Setting Burner Operation
SETTING BURNER OPERATION TABLE 10. NOMINAL START-UP SPECIFICATIONS Make ombustion measurements and orresponding air MODEL 139/A 199/A 270/A 370/A shutter adjustments per table 10 Combustion results from Max Gas Line Press (W C ) Nat Gas - 10 5 W C /Prop Gas -13 0 table 10 are for natural gas models Manifold Press (W C ) Natural Gas... -
Page 28: Maintenance
MAINTENANCE VENTING SYSTEM AND BAROMETRIC DRAFT CONTROL heater where the thermostat senses the drop in water temperature and a tivates main burner operation of the water heater The heater is equipped with a double a ting barometri draft If the storage tank temperature ontrol is out of alibration, repla e ontrol This ontrol assembly is fa tory adjusted to automati ally with new ontrol regulate the himney draft imposed on the unit The damper gate... -
Page 29: Anode Rod Inspe Tion
It is re ommended that the water heater storage tank be drained and ushed every 6 months to redu e sediment buildup The water heater should be drained if being shut down during freezing temperatures See Features And Components in this manual for Explosion Hazard the lo ation of the water heater omponents des ribed below TO DRAIN THE WATER HEATER STORAGE TANK:... -
Page 30: Deliming Solvents
Prepare the Water Heater To delime the water heater using the Flo-Jug method, prepare the heater for deliming Explosion Hazard Flammable hydrogen gases may be present. Keep all ignition sources away from faucet when turning on hot water. Do not smoke or have open ame or sparks in vi inity of heater Do not mix UN LIME with other hemi als Do not allow onta t with magnesium, aluminum or galvanized metals FIGURE 25. -
Page 31: Power Burner
While the water is being run through the tank, insert a Normally, lime removal will be ompleted within one hour stiff wire, opper tube attened at one end or an opened Severe build-up of lime may take longer than an hour to omplete wire oat hanger through the leanout opening and... -
Page 32: Gas Control Valve
GAS CONTROL VALVE Figure 30 shows the ombination gas ontrol valves used on these heaters If gas ontrol valve be omes defe tive, repairs should not be attempted A new valve should be installed in pla e of defe tive one FIGURE 30. -
Page 33: Troubleshooting Checklist
TROUBLESHOOTING CHECKLIST REMEDY COMPLAINT CAUSE USER QUALIFIED SERVICE AGENCY Set thermostat dial to a higher Thermostat set too low temperature Che k ontinuity and resistan e Water not hot enough Upper and/or lower temperature (Ohms) of upper and lower Call quali ed servi e agen y probe out of alibration thermostat probes Repla e probes if out of spe i ation... -
Page 34: For Your Information
FOR YOUR INFORMATION A sulfate redu ing ba teria whi h has a umulated START UP CONDITIONS within the water heater (this harmless ba teria is nontoxi to humans) SMOKE/ODOR An ex ess of a tive hydrogen in the tank This is aused It is not un ommon to experien e a small amount of smoke and by the orrosion prote tive a tion of the anode rod odor during the initial start-up This is due to burning off of oil... -
Page 35: Water Piping Diagrams
WATER PIPING DIAGRAMS... - Page 45 STORAGE TANK...
- Page 48 STORAGE TANK...
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Page 50: Manifold Kits
MANIFOLD KITS Dimensions shown are for minimum spa e o upied by the water heaters assemblies Spa e for the barometri draft ontrol assemblies, ombustion learan es and servi ing must be added PRIOR TO START UP IMPORTANT Fa tory Start-Up is required for a tivating warranty and assuring maximum operating performan e Conta t your lo al sales representatives or Authorized Start-Up Agent to arrange a FREE Certi ed Start-Up... -
Page 51: Replacement Parts List
COMMERCIAL GAS Glass Lined Tank Type Water Heater REPLACEMENT PARTS LIST MAIN BURNER ORIFICE CHART Natural Gas Propane Gas Burner Wayne C.S. Wayne C.S. Models Number Part No. (Decimal) Part No. (Decimal) BTP-139 HSG-200 62459-001 0 24 62459-001 0 209 BTP-199 HSG-200 62459-001... - Page 52 Item Description BTP-139 BTP-199 BTP-270, 270A BTP-370, 370A Anode 9003892005(2) 9003892005(2) 9003892005(2) 9003892005(2) Baf e, Flue 9005293205(7) 9005293205(7) 9005293205(7) 9005293205(7) Barometri Draft Control w Tee Assy 9500007199 9500007199 9500007200 9500007200 Cleanout Assembly: Gasket 9004099215 9004099215 9004099215 9004099215 Pressure Plate 9005797205 9005797205 9005797205 9005797205...
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Page 53: Notes
NOTES... -
Page 54: Notes
NOTES... -
Page 55: Warranty
COMMERCIAL WATER HEATER LIMITED WARRANTY EFFECTIVE WHAT'S NOT COVERED For 3 Years, in the event of a tank leak, we will repair or, at our Problems aused by improper gas supply line sizing, gas type, dis retion, repla e the defe tive water heater venting, onne tions, ombustion air, voltage, wiring, or fusing For 1 Year, Failure to follow appli able odes... - Page 56 500 Tennessee Waltz Parkway, Ashland City, TN 37015 Te hni al Support 800-527-1953 Parts 800-433-2545 www.hotwater.com Copyright 2014 A O Smith, All rights reserved...