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instruction manual
CommerCial gas water heaters
models
BCl3 95t199 6noX
(a)BCl3 85t275 6noX
(a)BCl3 85t390 6noX
www.americanwaterheater.com
ultra low nox series 100
American Water Heater
installation - operation - ser ViCe
Johnson City, TN 37605
- maintenanCe - limited warranty
Complies with sCaQmd low nox rule 1146.2
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 sto
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t aBle of Contents SAFe InSTAllATIOn, USe AnD Ser VICe............................. 3 Outdoor Air Through One Opening .................................... 16 APPrOVAlS ............................................................................. 3 Outdoor Air Through Two Horizontal Ducts ........................ 16 GenerAl SAFeTY InFOrMATIOn ......................................... 4 Outdoor Air Through Two Vertical Ducts ............................ 17 Precautions .............................
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safe installation, use and ser ViCe The proper installation, use and servicing of this water heater is extremely important to your safety and the safety of others. Many safety-related messages and instructions 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 instructions throughout this manual. It is very important that the meaning of each safety message is understood by you and others wh
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general safety information Fire or Explosion Hazard Fire Hazard Do not store or use gasoline or other flammable vapors and For continued protection against liquids in the vicinity of this or any other appliance. risk of fire: Avoid all ignition sources if you smell gas. Do not install water heater on carpeted floor. Do not expose water heater controls to excessive gas pressure. Do not operate water heater if flood damaged. Use only the gas shown on the water heater rating label. Maintain require
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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 or serious injury. pressure relief valve must be installed in the opening provided. This manual must remain with the water heater. Water temperature over 125°F (
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introduCtion Thank You for purchasing this water heater. Properly installed below) in the field involved. Installation skills such as plumbing, and maintained, it should give you years of trouble free service. air supply, venting, gas supply and electrical supply are required in addition to electrical testing skills when performing service. aBBreViations used ansi Z223.1 2012 sec. 3.3.85: “qualified Agency” - “Any Abbreviations found in this Instruction Manual include : individual, firm, corp
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130 140 features and Components Controls RESET BUTTON CONTROL BOX ON/OFF SWITCH VARIABLE FREQUENCY DRIVE LED FUSE DIGITAL LIGHTS THERMOSTAT digital thermostat I/O MODULE LOW SPEED figure 3. I/O MODULE HIGH SPEED eleCtroniC ignition Control BLOCKED INLET SWITCH each heater is equipped with an ignition control. The solid state BLOCKED ignition control (Figure 4), ignites the burner by utilizing a spark FLUE SWITCH IGNITION igniter. The spark igniter shuts off during the heating cycle and the B
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installation Considerations rough in dimensions I TOP OUTLET TOP INLET 1 1/2" NPT 1 1/2" NPT F K 1 1/2" NPT C A M H D L G E TOP VIEW B J BACK VIEW FRONT VIEW figure 6. t aBle 1. rough-in-dimensions BCl3 95t199 6noX (a)BCl3 85t275 6noX (a)BCl3 85t390 6noX model dim. inches cm inches cm inches cm A 76 193.0 76 193.0 76 193.0 b 11 3/4 29.8 11 3/4 29.8 11 3/4 29.8 C 78 1/4 198.8 78 1/4 198.8 78 1/4 198.8 D 65 3/4 167.0 65 3/4 167.0 65 3/4 167.0 E 25 3/4 65.4 25 3/4 65.4 25 3/4 65.4 F 21 53.3
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the water heater must be placed on a metal or wood panel loCating the w ater heater extending beyond the full width and depth by at least 3 inches in any direction. If the heater is installed in a carpeted alcove, the entire floor shall be covered by the panel. Also, see the CAUTION DrAInInG requirements in MAInTenAnCe Section. Property Damage Hazard THe HeATer SHAll be lOCATeD Or PrOTeCTeD SO IT IS nOT SUbJeCT TO PHYSICAl DAMAGe bY A MOVInG • All water heaters eventually leak. VeHICle. Fl
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insulation Blanket Breathing Hazard - Carbon Monoxide Gas Do not obstruct water heater air intake with insulating blanket. Gas and carbon monoxide detectors are available. Install water heater in accordance with the instruction manual. Breathing carbon monoxide can cause brain damage or death. Always read and understand instruction manual. Insulation blankets are available to the general public for external use on gas water heaters but are not necessary with these products. The purpose of an i
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Some circulating pumps are manufactured with sealed bearings high altitude installations and do not require further lubrication. Some circulating pumps must be periodically oiled. refer to the pump manufacturer’s instructions for lubrication requirements. CIRCULATING PUMP WIRING DIAGRAM CIRCULATING PUMP WIRING DIAGRAM Fire and Explosion Hazard STORAGE TANK OR BUILDING RECIRCULATION DISHWASHER LOOP WITH TOGGLE SWITCH Under no circumstances should the FIELD SUPPLIED TEMPERATURE CONTROL DISHWAS
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installation reQuirements 4. When installing multiple water heaters in the same gas gas supply systems supply system it is recommended that individual positive low pressure building gas supply systems are defined as those lock-up gas pressure regulators be installed at each unit. systems that cannot under any circumstances exceed 14” W.C. (3.49 kPa) (1/2 PSI Gauge). These systems do not require power supply pressure regulation. Measurements should be taken to insure The water heaters cover
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expansion. Contact a local plumbing service agency to have a thermal expansion tank installed. HOT WATER OUTLET See Water line Connections on page 20 and Water Piping Diagrams on page 34. 12” TO 15” (30-38 cm) t emperature- pressure r elief Val Ve TEMPERED WATER OUTLET CHECK COLD Explosion Hazard VALVE WATER INLET MIXING Temperature-Pressure Relief Valve CHECK VALVE must comply with ANSI Z21.22- VALVE CSA 4.4 and ASME code. TO TANK INLET Properly sized temperature- pressure relief valve must b
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no valve or other obstruction is to be placed between the see Closed Water Systems and Thermal expansion on page 13. Temperature-Pressure relief Valve and the tank. Do not connect If you do not understand these instructions or have any questions discharge piping directly to the drain unless a 6” (15.2 cm) regarding the Temperature-Pressure relief Valve call the toll free air gap is provided. To prevent bodily injury, hazard to life, or number listed on the back cover of this manual for tech
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provide combustion, ventilation and dilution air. air reQuirements unusually t ight Construction In unconfined spaces in buildings, infiltration may be adequate to provide air for combustion, ventilation and dilution of flue gases. However, in buildings of unusually tight construction (for Breathing Hazard - Carbon Monoxide Gas example, weather stripping, heavily insulated, caulked, vapor Install water heater in accordance with barrier, etc.) additional air must be provided using the methods
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multiple heater manifold outdoor air through one opening Figure 13 and tables on pages 18 and 19 should be used for horizontally manifolding two or more heaters. figure 15. Alternatively a single permanent opening, commencing within 12 inches (300 mm) of the top of the enclosure, shall be provided. figure 13. See Figure 14. The water heater shall have clearances of at least 1 inch (25 mm) from the sides and back and 6 inches (l50 fresh air openings for Confined spaCes mm) from the front of
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When ducts are used, they shall be of the same cross sectional outdoor air through two VertiCal duCts area as the free area of the openings to which they connect. The illustrations shown in this section of the manual are a The minimum dimension of rectangular air ducts shall be not less reference for the openings that provide fresh air into confined than 3 inches. spaces only. air from other indoor spaCes do not refer to these illustrations for the purpose of vent installation. See Venting
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t aBle 6. teChniCal data Venting type B gas Vent multiple gas fired t ank-t ype heaters When venting multiple tank type heaters using Type b vent pipe, follow the installation diagram (figure 13) and tables below which give sizing and data based upon nFPA 54/AnSI Z223. 2006. model BCl3 95t199 6noX input: 199,000 Btu/hr t otal Vent height (feet) Vent Connector size: 6 inches 6 8 10 15 20 30 50 100 input Btuh/hr rise Vent Connector diameter (inches) 199,000 1 Ft. 7 7 7 6 6 6 6 6 199,000 2 Ft.
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t aBle 7. teChniCal data Venting (Continued) model (a)BCl3 85t275 6noX input: 275,000 Btu/hr t otal Vent height (feet) Vent Connector size: 6 inches 6 8 10 15 20 30 50 100 input Btu/hr rise Vent Connector diameter (inches) 275,000 1 Ft. 8 8 7 7 6 6 6 6 275,000 2 Ft. 8 8 7 7 6 6 6 6 275,000 3 Ft. 7 7 7 7 6 6 6 6 Combined input in number of 275 heaters manifold and Common Vent diameters (inches) thousands of Btu/hr 2 550,000 10 9 9 8 8 8 7 7 3 825,000 12 12 12 10 9 9 8 8 4 1,100,000 14 14 14 12 1
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water heater installation w ater l ine Conne Ctions t&p Val Ve disCharge pipe The water piping installation must conform to these instructions and to all local code authority having jurisdiction. Good practice requires that all heavy piping be supported. r ead and observe all requirements in the following sections Explosion Hazard before installation of the water piping begins: Temperature-Pressure Relief Valve 1. Water Temperature Control and Mixing Valves on page 12. must comply with ANSI Z
