®
ProMax SL Direct-Vent Features
SIDE-MOUNTED RECIRCULATING TAPS
For installation with combination space heating/potable water heating
applications (such as with air handlers) or any system requiring a
recirculating hot water loop.
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-linked polymer.
GREEN CHOICE
®
GAS BURNER
Patented “Eco-Friendly” design reduces NOx emissions and complies with less
than 40 ng/j requirements for NOx emissions.
PUSH BUTTON PIEZO IGNITOR
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 Blue Diamond
®
GLASS COATING
Provides superior corrosion resistance compared to industry-standard
glass lining.
CSA Certified and ASME Rated T&P Relief Value
CODE COMPLIANCE: UBC, CEC, SBCC, CABO, HUD, BOCA NATIONAL
CODES, ASHRAE/IESNA 90.1 - CURRENT EDITION AND 2004 NAECA
DESIGN-CERTIFIED BY CSA INTERNATIONAL
According to ANSI Z21.10.1-CSA 4.1 Standards governing storage-type water
heaters.
6-YEAR LIMITED TANK & PARTS WARRANTY
For complete information, consult written warranty or A. O. Smith Water
Products Company.
AOSRG46400
DIRECT-VENT
Residential Gas Water Heaters
Revised September 2009
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SL
®
®
April 2011R
