A.O. Smith BTN-80 Manuel d'installation

1MODELS BTR(C)120 THRU 500ACOMMERCIAL GAS, GLASS-LINED, TANK-TYPE WATER HEATER• INSTALLATION • OPERATION • MAINTENANCE • LIMITED WARRANTYPLACE THE

10• If service is require for the hood portion of the drafthood/damper drive assembly, they may be separated by unfasteningthe three screws located in

11TYPE B GAS VENTMultiple Gas Fired Tank-Type HeatersWhen venting mutiple tank type heaters using Type Bvent pipe, follow the installation diagram (fi

12MODEL BTR-250, 251Input: 250,000, 251,000 Total Vent Height (Feet)Draft Hood: 6” 6 8 10 15 20 30 50 100Input Btuh Rise Vent Connector Diameter (in

13MULTIPLE HEATER MANIFOLDFigure 9 and tables on pages 11 and 12 should be used forhorizontally manifolding two or more heaters. Also seeMULTIPLE-UNI

14Size the main gas line in accordance with Table III. (See lastpage in manual). The figures shown are for straight lengths ofpipe at 0.5 in. W.C. p

15GAS METER SIZE — NATURAL GASES ONLYBe sure the gas meter has sufficient capacity to supply the fullrated gas input of the water heater as well as th

16INSTALLATION DIAGRAMS-TOP INLET/OUTLET USAGEUse of the top inlet water connection requires installation of aninlet dip tube (refer to figure 12).

17VERTICAL STORAGE TANK AND FORCED CIRCULATION DANGERTEMPERATURE SETTING SHOULD NOT EXCEED SAFE USETEMPERATURE AT FIXTURES. SEE WATER TEMPERATURE CON

18DANGERTEMPERATURE SETTING SHOULD NOT EXCEED SAFE USETEMPERATURE AT FIXTURES. SEE WATER TEMPERATURE CONTROLWARNING ON PAGE 30. IF HIGHER PREHEAT TE

19INSTALLATION DIAGRAMS-SIDE INLET/OUTLET USAGEDANGERTEMPERATURE SETTING SHOULD NOT EXCEED SAFE USETEMPERATURE AT FIXTURES. SEE WATER TEMPERATURE CON

2BTR MODELS 120 THROUGH 500A - TABLE 1A MODEL INPUT APPROX. GAS H VENT CONNECTIONS ApproximateRATE TANK INLET DIA INLET OUTLET

20DANGERTEMPERATURE SETTING SHOULD NOTEXCEED SAFE USE TEMPERATURE ATFIXTURES. SEE WATER TEMPERATURECONTROL WARNING ON PAGE 29. IF HIGHERPREHEAT TEMP

21TWO TEMPERATURE - TWO PRE-HEATERS WITH MIXING VALVE OR BOOSTERHEATER WITH OR WITHOUT BUILING RECIRCULATIONTWO PRE-HEATERS WITH MIXING VALVETWO PRE-H

22MEDIUM TEMPERATURE - ONE HEATER WITH AUXILIARY STORAGE TANK FORCEDCIRCULATION WITH OR WITHOUT BUILDING RECIRCULATIONVERTICAL STORAGE TANKHORIZONTAL

23LEDOM)MC(SEHCNI"A"SNOISNEMID"A"DOOHLACITREVELIFORPWOLSLEDOMRTBSLEDOMCRTB021)mc771("57.96)mc771("57.96451)mc581("0

24MECHANICAL VENTINGSINGLE UNIT INSTALLATIONWhen mechanical venting of these heaters is desired, the followingkits are available.BTR(C) 120 through th

25TABLE VllPILOT BURNER INFORMATIONLEDOMFOEPYTSAGRENRUBTOLIPREBMUNTRAP)ECIFIROHTIW(DETARECIFIROEZISllA*sledoMlarutaN0-413391810.0enaporP1-413391410.0

26the flow of flue gases through the draft hood during normaloperation.B. Flue Damper “Closed” - refers to the position of the flue damperblade when t

271. ROTATE THERMOSTAT DIAL -BY HAND- COUNTERCLOCKWISE TO LOWEST SETTING. SEE STEP 5 ABOVE.2. TURN OFF ALL ELECTRICAL POWER TO THE APPLIANCE IF SE

281. ROTATE THERMOSTAT DIAL -BY HAND- COUNTERCLOCKWISE TO LOWEST SETTING. SEE STEP 5 ABOVE.2. TURN OFF ALL ELECTRICAL POWER TO THE APPLIANCE IF SER

29NOTE: When damper motor is energized, a small delay due todrive mechanism backlash occurs before a visual position changeto the damper blade or shaf

3TABLE 1C - HEATER PERFORMANCE DATA BTR MODELSINPUT APPROX. RECOVERY RATING CAPACITIES (GPH AND LPH)RATE GAL EFF. 30° F 40° F 50° F 60° F 70° F 80° F

30 MAIN BURNERASSEMBLYPILOT BURNERASSEMBLYFIGURE 19• The pilot flame should envelop sensing device with 5/8"(1.6cm) fla

31If the gas valve becomes defective, repairs should not beattempted. A new valve should be installed in place of thedefective one.CHECKING THE INPUT

32HOT WATER ODOROn occasion, hot water may develop a strong odor. If this occursdrain the heater completely, flush thoroughly, and refill. If thepr

33To clean heater through cleanout opening, proceed as follows:1. Disconnect electrical cover and drain heater.2. Remove outer cover plate from lowe

34TROUBLESHOOTINGIGNITION MODULE SYSTEMBefore calling your service agent, the following checklist shouldbe examined to eliminate obvious problems from

35TNIALPMOCESUACYDEMERRESUNAMECIVRES.hguonetohtonretaW*.woloottestatsomrehTrehgihaotlaidtatsomrehtteS.erutarepmet.noitarbilacfotuotatsomrehT.namecivre

36Model BTR(C) Limited WarrantyA. O. Smith Corporation, the warrantor, extends the following LIMITED WARRANTY to the owner of this water heater.1. TH

4TABLE OF CONTENTSROUGH-IN-DIMENSIONS -------------------------------- 2-3TABLE OF CONTENTS------------------------------------ 4FOREWORD ------------

5GENERAL SAFETYINFORMATIONPRECAUTIONSDO NOT USE THIS APPLIANCE IF ANY PART HAS BEENUNDER WATER. Immediately call a qualified service techincianto ins

6• Do not cover the temperature & pressure relief valve.•Do not cover the instruction manual. Keep it on the side of thewater heater or nearby fo

7 HONEYWELL IGNITION MODULES8600M Continuous Re-TryFIGURE 3AUTOMATIC FLUE DAMPER DEVICEAll units are equipped with an automatic flue

8LOCATING THE HEATER WARNINGTHERE IS A RISK IN USING FUEL BURNING APPLIANCESSUCH AS GAS WATER HEATERS IN ROOMS, GARAGES OROTHER AREAS WHERE GASOLINE,

9 WARNINGFOR SAFE OPERATION PROVIDE ADEQUATE AIR FORCOMBUSTION AND VENTILATION. AN INSUFFICIENT SUPPLYOF AIR WILL CAUSE RECIRCULATION OF COMBUSTIONPR