®
ProMax is an economical water heater designed for households that need an
exceptional performer that provides long-lasting value.
INTELLIGENT CONTROL LOGIC
The internal microprocessor provides enhanced operating parameters and tighter differentials
for precise sensing and faster heating response to optimize performance.
SELF-POWERED ELECTRONIC GAS VALVE
Uses a thermopile to genrate the power needed to operate the electronic gas control without
requiring an external power source.
DIAGNOSTICS
The electronic gas control incorporates an LED status indicator that monitors system operation
& service diagnostics.
DYNACLEAN™ DIFFUSER DIP TUBE
Helps reduce lime and sediment buildup, maximizes hot water output.
Made from long-lasting PEX cross-linked polymer.
COREGARD™ ANODE ROD
A. O. Smith’s exclusive aluminum anode has a stainless steel core,
protects tank against corrosion.
GREEN CHOICE
®
GAS BURNER
Patented “Eco-Friendly” design reduces NOx emissions by up to 33% and complies with less
than 40 ng/j requirements for low NOx emissions.
PUSH-BUTTON PIEZO IGNITOR
Makes lighting pilot fast and easy with one-hand push-button spark ignition.
DURABLE, TAMPER-RESISTANT BRASS DRAIN VALVE
BLUE DIAMOND
®
GLASS COATING
Provides superior corrosion resistance compared to industry-standard glass lining.
CSA CERTIFIED AND ASME RATED T&P RELIEF VALVE
Top-mounted T&P relief valve available as option.
CODE COMPLIANCE
DESIGN-CERTIFIED BY CSA INTERNATIONAL
According to ANSI Z21.10.1 - CSA 4.1 standards governing storage-type water heaters.
6-YEAR LIMITED TANK AND PARTS WARRANTY
For complete information, consult written warranty or
A. O. Smith Water Products Company.
FLAMMABLE VAPOR IGNITION RESISTANT COMPLIANT DESIGN
See other side.
Residential Gas Water Heaters
September 2010R
AOSRG45551
SERIES 300/301
Page 1 of 2
®
Low Lead Content
Meets UBC, CEC, SBCC, HUD and BOCA National Codes. Meets the thermal efficiency and standby
loss requirements of the U.S. Department of Energy and current edition of ASHRAE/IESNA 90.1
and meets the Federal Energy Efficiency Standards effective January 20, 2004, according to the
National Appliance Energy Conservation Act (NAECA) of 1992.
®
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