AO Smith Water Heater AOSRG45700 User Manual

Residential Gas Water Heaters  
DIRECT-VENT  
ProMax® Direct-Vent Features  
DIRECT-VENT DESIGN  
One-pipe, dual-channel closed-combustion system draws all make-up air  
from outside the home, eliminating problems caused by insufficient indoor  
ventilation, and is FVIR compliant  
Horizontal air intake and venting on all models up to 80 inches from  
outside wall, with no electrical power needed.  
A. O. SMITH DYNACLEAN™ DIFFUSER DIP TUBE  
Helps reduce lime and sediment buildup, maximizes hot water output.  
Made from long-lasting PEX cross-link polymer.  
GREEN CHOICE™ GAS BURNER  
Patented “eco-friendly” design reduces NOx emissions up to 33% and  
complies with Southern California and Texas requirements.  
PUSH BUTTON PIEZO IGNITER  
Makes lighting pilot fast and easy with one hand push button spark  
ignition.  
HEAT TRAP NIPPLES Factory installed.  
DURABLE TAMPER-RESISTANT BRASS DRAIN VALVE  
A. O. SMITH PERMAGLAS® GLASS COATING  
Protects steel tank from rust.  
FACTORY-INSTALLED TEMPERATURE & PRESSURE (T&P)  
RELIEF VALVE  
6-YEAR LIMITED TANK & PARTS WARRANTY  
For complete information, consult written warranty or A. O. Smith Water  
Products Company.  
CODE COMPLIANCE: UBC, CEC, SBCC, CABO, HUD, BOCA  
NATIONAL CODES, ASHRAE/IES 90.1-1999 AND 2004 NAECA  
DESIGN-CERTIFIED BY CSA INTERNATIONAL  
According to ANS Z21.10.1 standards governing storage-type water  
heaters.  
Page 1 of 2  
Revised April 2008  
AOSRG45700  
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