Product Overview

FULLY MODULATING COMBUSTION
• Modulates the firing rate as the demand changes
• Modulating the burner results in higher overall
operating efficiencies and longer service life
• Models are available from 120,000 to 499,900 BTU/h
RELIABLE COMPONENTS
• Robust direct spark ignition for years of worry-
free operation
• Pre-mix burner system designed for smooth light
off and operation
HELICAL COIL HEAT EXCHANGER
• Large surface area for heat transfer maximizes efficiency
• External and internal glassing
• Significantly fewer weld joints result in less
opportunity for leaks compared to straight
multi-flue designs
• Baffle-free design avoids unwanted restriction
and hot spots
• No radiant heat loss at the base results in
maintained efficiency over time
• Coil design resists scale build-up
• Coil design results in reduced weight of the
water heater
ULTRA HIGH EFFICIENCY
• ENERGY STAR
®
qualified
• Rated thermal efficiencies of up to 98%
ADVANCED ELECTRONIC CONTROLS
• Easy-to-read diagnostics
• Easily adjustable advanced temperature control
• Optional iCOMM
TM
remote monitoring
PERMAGLAS
®
GLASS LINING PROCESS
• Tank is glass coated using an industry
exclusive “Ultra Coat
TM
” glassing process
• Coating is applied as a liquid, and the tank is
mechanically rotated to ensure all areas are
evenly covered to protect against corrosion
EASY INSTALLATION
• Unique design has all components located on top or
on the front
• Lightweight design allows for easy maneuverability
during installation
POWERED ANODES ON ALL MODELS
• Titanium powered anodes standard on all model sizes
• Powered anodes work in all water conditions, never
need replacing and eliminate possibility of strong
water odors usually related to conventional anodes
DIRECT VENT LENGTHS
• 120 to 250 models can be direct vented using 3” PVC,
CPVC or polypropylene pipe up to 50 equivalent feet and
120 feet using 4” pipe
• 300 to 500 models can be vented using 4” pipe up to 70
feet and 6” pipe up to 120 feet
WATER DURABLE
• Approved for operation in a variety of water conditions
• The unique design allows it to maintain efficiency in
higher levels of water hardness
• Nearly unaffected by scale build-up due to the burner
on top and heat passages well above the bottom of the tank
WATER CONNECTIONS
• 1 ½” top water outlet
• Recirculation loop return connection
• 1 ½” lower front water inlet
FIELD WIRING JUNCTION BOX
• Terminal block for easy 115v wiring connection
• Auxiliary relay
• Built-in surge protection
FEATURES & BENEFITS OF THE
A. O. Smith Corporation
500 Tennesse Waltz Parkway • Ashland City, TN 37015 • PH 800-527-1953
www.hotwater.com
© 2014 A. O. Smith Corporation, all rights reserved.
AOSCG71003
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