A.O. Smith HYB-90N warranty Installation Considerations, Rough In Dimensions

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INSTALLATION CONSIDERATIONS

INSTALLATION CONSIDERATIONS

ROUGH IN DIMENSIONS

Top View

Left Side View

FIGURE 2

Capacity, Gas and Electrical Characteristics

Model

Approx. Capacity

Input

Gas

Gas Supply Pressure

Manifold Pressure

Electrical Characteristics

 

 

 

 

Type

 

 

 

 

 

 

U.S. Gals.

Litres

BTU/hr

Max.

Min.

in. WC (kPa)

Volts/Hz

Amperes

 

 

 

 

 

 

 

in. WC (kPa)

in. WC (kPa)

 

 

 

HYB-90N

25

94.6

100,000

Nat.

14.0 (3.49)

5.0 (1.25)

4.2 (1.05)

120/60

2.5

Minimum gas supply pressure must be maintained under both load and no load (dynamic and static) conditions. Manifold Pressure is preset on the gas valve by the manufacturer; DO NOT ATTEMPT TO ADJUST!

Thermal efficiency is 90%.

If the hardness of your water supply is more than of 12 grains per gallon (200 mg/L), if your water supply is acidic or otherwise impure, the water supply must be treated with approved methods in order to ensure full warranty coverage. Problems resulting from the forma- tion of scale are not covered by the warranty.

 

Minimum Clearance To Combustibles

 

Service Clearance

Test Pressure

Top

Front

Vent

Back

Sides

Floor

Front

Sides

P.S.I.

 

0

0

0

0

0

0

21” (53.3 cm)

12” (30.5 cm)

300

This appliance must be installed in accordance with local codes or, in the absence of local codes, the “National Fuel Gas Code” ANSI Z223.1/NFPA 54 or the “Natural Gas and Propane Installation Code” CAN/CSAB149.1.

Not for installation in a Manufactured Home (Mobile Home). This water heater is suitable for water (potable) heating only. This water heater is suitable for installation in a closet or alcove.

www.hotwater.com

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Contents POWER VENT GAS MODELS For Your SafetyInstallation and Operating Manual HYBRID GAS WATER HEATERSIMPORTANT INFORMATION TABLE OF CONTENTSIMPORTANT DEFINITIONS SAFE INSTALLATION, USE AND SERVICEGENERAL SAFETY DANGER INTRODUCTION Page GET TO KNOW YOUR WATER HEATER - GAS MODELS REPLACEMENT PARTS AND DELIMING PRODUCTSROUGH IN DIMENSIONS INSTALLATION CONSIDERATIONSINSTALLATION REQUIREMENTS FOR THE COMMONWEALTH OF MASSACHUSETTS Water Potable Heating All models are considered WATER PIPING - MIXING VALVE USAGEFACTS TO CONSIDER ABOUT LOCATION HANDLE INSTALLATION Access To EARTHQUAKE ZONESTop Casing Front ScrewsCOMBUSTION AIR AND VENTILATION APPLIANCES IN UNCONFINED SPACESAPPLIANCES IN CONFINED SPACES B. ALL AIR FROM OUTDOORS See Figures 12, 13 and WATER PIPING CHEMICAL VAPOR CORROSIONCLOSED WATER SYSTEMS THERMAL EXPANSIONTEMPERATURE-PRESSURE RELIEF VALVE HARD WATERT&P Valve and Pipe Insulation if supplied SEDIMENT TRAPS GAS PIPINGGAS LINE PURGING HIGH ALTITUDE INSTALLATIONSFLOODING/FREEZING FILLING THE WATER HEATERIf using 2 inch vent pipe VENT PIPE TERMINATIONPLANNING THE VENT SYSTEM RODENT SCREEN INSTALL INTO ELBOW GROUND LEVEL OR MAXIMUM SNOW LINE If using 3 inch vent pipeTERMINATION ELBOW ELBOW STRAPVENT TERMINAL INSTALLATION, SIDEWALL INSTALLATION OF VENT SYSTEMCONDENSATE CONDENSATION WARNINGSEQUENCE OF INSTALLATIONS INSTALLATION SEQUENCEVent terminals supplied with heater must be used INSTALLATION OF VERTICAL VENT SYSTEM INSTALLATION OF VENT SYSTEM, SIDEWALLVENT PIPE PREPARATION RECOMMENDED BRUSH* SIZE FOR PRIMER AND CEMENT APPLICATIONS STEP ASTEP B STEP E U.S. POWER VENTSTEP F STEP G CONNECTION TO VENT PIPEVENT HOODS MAY BE EXTREMELY HOT DURING OPERATION CALIBRATION ELECTRICAL CONNECTIONSFIGURE 33a “OFF”, “up”DISPLAY PANEL OPERATING INSTRUCTIONSNumeric Display DISCONNECTION WHEN SERVICING CAUTION LABEL ALL WIRES PRIOR TOCONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUSFOR YOUR SAFETY READ BEFORE LIGHTING LIGHTING INSTRUCTIONSOPERATING INSTRUCTIONS TO TURN OFF GAS TO APPLIANCEHEAT CYCLE DEFINITIONS STATEDESCRIPTION TEMPERATURE REGULATION Temperature Probes UNIQUE HYBRID FEATURESWater Circulation Pump Line Voltage Monitor Detection of Failure to Maintain Desired Constant Temperature CONSTANT OUTPUT TEMPERATURE CONTROLSTART UP CONDITIONS OPERATIONAL CONDITIONSHOUSEKEEPING MAINTENANCEVENTING SYSTEM INSPECTION BURNER OPERATION AND INSPECTIONCLEANING THE INLET WATER FILTER ANODE ROD REPLACEMENTTEMPERATURE-PRESSURE RELIEF VALVE OPERATION MOTORSFLUSHING THE HEAT EXCHANGER LIME BUILD- UP CLEANING THE HEAT ENGINEDRAINING THE TANK FAULT INDICATION AND ERROR CODESDiagnostic DIAGNOSTIC DISPLAYCode and DisplayedLockout FaultCause RemedyLockout FaultCode DescriptionLockout TROUBLESHOOTING Check if there is any error code on WHEN THE TAP IS OPENEDb.The unit display is an error code system installed, or there is aLEAKAGE CHECKPOINTS SERVICEPARTS IDENTIFICATION ITEM #A Baffle, Flue B Hot Water Outlet Nipple w/ Anode, Heat Trap AB C DEF G T SH R I Q P KIT # REPLACEMENT PARTS DESCRIPTIONSERVICE AND LABOR RESPONSIBILITY LIMITED RESIDENTIAL GAS WARRANTYCLAIM PROCEDURE CONDITIONS AND EXCEPTIONSPage Page 500 TENNESSEE WALTZ PARKWAY ASHLAND CITY, TN PHONE 1-800-433-2545 FAX