RESIDENTIAL GAS WATER HEATERS

1 May 2017 A. O. Smith Corporation. All rights | 800-527-1953 Toll-Free USA | A. O. Smith Corporation | 500 Tennessee Waltz Parkway | Ashland City, TN 37015 Page 1 of 2 AOSRG47000 INTELLIGENT CONTROL LOGIC* The internal microprocessor provides enhanced operating parameters and tighter differentials for precise sensing and faster heating response to optimize performance. Uses a thermopile to generate the power needed to operate the electronic gas control without requiring an external power source. The electronic gas control incorporates an LED status indicator that monitors system operation and service diagnostics. *Not available on 60,000 BTU input models (GCRX-50 and GCRX-55).GREEN CHOICE GAS BURNER Patented eco-friendly burner design reduces NOx emissions by up to 33% and complies with Low-NOx emission requirements of less than 40 DIFFUSER DIP TUBE Reduces lime and sediment buildup and maximizes hot WATER output.

2 Made from long-lasting PEX cross-linked ANODE ROD Our anode rods have a stainless steel core that extends the life of the anode rod allowing superior tank protection far longer than standard anode PIEZO IGNITOR Makes lighting the pilot fast and easy with one-hand push-button spark TRAP NIPPLES Factory-installed for faster DIAMOND GLASS COATING Provides superior corrosion resistance compared to industry standard glass BRASS DRAIN VALVE Our RESIDENTIAL WATER HEATERS have a solid brass, tamper resistant, enhanced-flow, ball type, drain valve. Uses a standard female hose fitting that allows for fast and easy draining during maintenance. Designed for easy operation, this valve includes an integral screwdriver slot that features a 1/4 turn (open/close) radius, which not only permits full straight-through WATER flow but also a quick and positive shut COMPLIANCE Meets UBC, CEC and HUD National Codes.

3 Meets the thermal efficiency and standby loss requirements of the U. S. Department of Energy and current edition of ASHRAE/IES Complies with the Federal Energy Conservation Standards effective April 16, 2015, in accordance with the Energy Policy and Conservation Act, (EPCA), as UNIFORM ENERGY FACTOR (UEF) Eco-Friendly non-CFC foam insulation, external heat traps and specially designed combustion chamber combine to produce a high UEF for maximum savings on operating CERTIFIED AND ASME RATED T&P RELIEF VALVEMAXIMUM HYDROSTATIC WORKING PRESSURE 150 PSIDESIGN-CERTIFIED BY CSA INTERNATIONAL Certified at 300 PSI test pressure and 150 PSI working pressure. Listed according to ANSI standards governing storage tank-type gas WATER LIMITED TANK AND PARTS WARRANTY For complete information, consult written warranty or go to ATMOSPHERIC VENT COMMERCIAL-GRADE RESIDENTIALCOMMERCIAL-GRADERESIDENTIAL GAS WATER HEATERSFor technical information call 800-527-1953.

4 A. O. Smith Corporation reserves the right to make product changes or improvements without prior notice. May 2017 A. O. Smith Corporation. All rights | 800-527-1953 Toll-Free USAPage 2 oF 2 AOSRG47000 FLAMMABLE VAPOR IGNITION RESISTANT (FVIR) WATER HEATERSA. O. Smith FVIR design meets the American National Standards Institute standards ( ) that deal with the accidental or unintended ignition of flammable vapors, such as those emitted by a sealed combustion chamber with intake air filter and a flame arrestor built into the WATER heater base. In addition, a thermal cutoff (TCO) device, is designed to shut off gas flow to the burner and pilot if poor combustion is Hydrostatic Working Pressure: 150 PSIBAGHFD1/2" GASCONNECTIONCOLDCONNECTIONCEHOTCONNECTI ON(ANODE OUTLETON T&P MODELS) ANODE ROD(OPTIONAL T&PLOCATION) T&P VALVEM aximum Hydrostatic Working Pressure: 150 PSIBAGHFD1/2" GASCONNECTIONCOLDCONNECTIONCEHOTCONNECTI ON(ANODE OUTLETON T&P MODELS) ANODE ROD(OPTIONAL T&PLOCATION) T&P VALVER ecovery capacities based on actual performance connection is 3/4 on all models Models ship with supplied insulation 10-year tank and 10-year parts warranty, change G to X in model number (example: XCR-30).

5 LP models not available on GCRH-40.*For optional side-mounted recirculating taps, add L to the suffix (example: GCR-40L).All models approved for installation from sea level to 10,100 ft. and specifications subject to change without notice in accordance with our policy of continuous product NumberNominal Gallon CapacityRated Storage VolumeFirst Hour Rating (Gallons)UEFBTU Input Natural GasBTU Input Propane GasRecovery 90 F Rise Gallon Per HourDimensions in InchesApprox. Shipping Weight (lbs)ABCDEF*G*HDraft HoodTall Models ,50032,0003761-1/2581612-1/4851-3/4N/AN/ A3 or 4 ,50032,0003761-1/2581812-1/4851-3/4N/AN/ A3 or 4 132 ,500N/A3861-3/458-1/42012-1/4852N/AN/A3 or 4 138 ,00036,0004261-3/458-1/41812-1/4852N/AN/ A3 or 4 130 GCR-40* ,00036,0004261-3/458-1/42012-1/485214-1/ 451-3/43 or 4 138 GCG-50* ,00037,0004160-3/457-1/42112-1/4850 1/214-1/450-1/23 or 4 148 GCR-50* ,00037,0004360-3/457-1/42212-1/4850-1/21 4-1/450-1/23 or 4 165 GCRT-50* ,00045,0005460-3/457-1/42212-1/4850-1/21 4-1/450-1/24165 GCRX-50* ,00054,0006565-1/2612213-1/2854-1/414-1/ 454-1/44182 GCRX-55* ,00054,0006559-3/455-1/42413-1/284814-1/ 4484185 Short Models ,50032,000375046-1/21812840N/AN/A3 or 4 ,50032,000365046-1/22012840N/AN/A3 or 4 118 ,00036,0004151-1/2482012841-1/4N/AN/A3 or 4 ,00036,0004151-1/2482212841-1/4N/AN/A3 or 4 ,00040,0004353-1/449-3/42413-1/4841-3/8N /AN/A3 or 4 177 COMMERCIAL-GRADERESIDENTIAL GAS WATER HEATERS