A.O. Smith BTR 151 THRU 201/A warranty Horizontal Storage Tank

Page 17

MEDIUM TEMPERATURE - ONE HEATER WITH AUXILIARY STORAGE TANK FORCED

CIRCULATION WITH OR WITHOUT BUILDING RECIRCULATION

VERTICAL STORAGE TANK

* PIPE RELIEF VALVE TO OPEN DRAIN.
**WHEN USING AN A.O. SMITH T-140, -200,
-350 OR -400 STORAGE TANK, USE
LOWER 3/4” OPENING FOR TANK
TEMPERATURE CONTROL.
IF BUILDING CIRCULATING LOOP IS USED,
CONNECT TO AN OPENING NEAR THE
BOTTOM OF THE TANK.	HORIZONTAL STORAGE TANK
	HORIZONTAL STORAGE TANK

CAUTION: IF BUILDING COLD WATER SUPPLY HAS A

BACKFLOW PREVENTER, CHECK VALVE OR WATER

METER WITH CHECK VALVE. PROVISIONS FOR

THERMAL EXPANSION OF WATER IN THE HOT WATER

SYSTEM MUST BE PROVIDED.

*PIPE RELIEF VALVE TO OPEN DRAIN

INSTALL IN ACCORDANCE WITH LOCAL CODES.

DANGER

TEMPERATURE SETTING SHOULD NOT EXCEED

SAFE USE TEMPERATURE AT FIXTURES. SEE

WATER TEMPERATURE CONTROL WARNING ON

PAGE 20. IF HIGHER PREHEAT TEMPERATURES

ARE NECESSARY TO OBTAIN ADEQUATE

BOOSTER OUTPUT, ADD AN ANTI-SCALD VALVE

FOR HOT WATER SUPPLIED TO FIXTURES.

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Contents Division of A. O. Smith Corporation PlacetheseinstructionsadjacenttoheaterAndnotifyownertokeepforfuturereference Recovery Rating Capacities GPH AT Temperature Rise Shown ROUGH-IN-DIMENSIONSForeword Heater Performance DataTable of Contents High Altitude Installations FeaturesExtended NON-USE Periods Insulation BlanketsExhaust Inducer Blower Assembly High Limit SwitchElectronic Ignition Control Circulating PumpUncrating Required AbilityLocating the Heater LevelingConfinedspace VentingTo the Heater and Risk of Fire or Explosion Unconfinedspace Water Line Connections Multiple Heater ManifoldWater Potable Heating Space Heating Relief ValvePurging GAS PipingGAS Pressure Regulator Length Nominal Iron Pipe Sizes Inches FeetSingle Unit Wiring Diagram Heater WiringGeneral Installation DiagramsHorizontal Storage Tank and Forced Circulation Vertical Storage Tank and Forced CirculationPage Circulating Return Line Connection Installation DIAGRAMS-SIDE INLET/OUTLET UsageHeater with Mixing Valve and Recirculated Sanitizing Loop TWO PRE-HEATERS with Booster Heater Horizontal Storage Tank Sequence of Operation OperationWhat to do if YOU Smell GAS For Your Safety Read Before OperatingWater Temperature Control Preventive MaintenanceCheck the Ignitor Assembly Ignitor AssemblyGAS Valves Remote Storage Tank Temperature ControlChecking the Input Venting SystemAnode ROD Inspection HOT Water OdorFlushing DrainingDeliming Solvents Tank Cleanout ProcedureDeliming Using FLO-JUG Method Replacement Parts ServiceSystem Diagnostics Ignition Module SystemYES Sequence of Operation Flow ChartRemedy Operational ChecklistComplaint Cause User Serviceman Claimprocedure ServiceandrepairexpensesKeepthiswarrantypostedadjacenttotheheaterforfuturereference TankSmith Water Products Company

HORIZONTAL STORAGE TANK