A.O. Smith Commercial Gas Water Heaters Water Heater User Manual


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Cyclone HE
®
The light-commercial Cyclone HE
®
is designed to
produce more hot water than any comparable
commercial gas water heater available today. The
power-vent Cyclone HE combines the power of
76,000 BTU input with 90% thermal efficiency. The
Cyclone HE is perfect for drive-through or fast food
restaurants, offices and other light-duty applications.
It provides the technology and performance that
lives up to the A. O. Smith standard.
The Innovation
That Started It All
A. The pre-mixed burner design delivers
maximum efficiency.
B. When the mixture is ignited by the hot
surface igniter, a swirling flame shoots
downward into the submerged central
combustion chamber.
C. The resulting hot flue gases are then
forced at high velocity through a helical
heat exchanger coil.
D. The spiral shape of the coil keeps the hot
gases swirling against the heat exchanger
walls, resulting in extra-high thermal efficiency.
REVOLUTIONARY HEAT EXCHANGER
AND BURNER SYSTEMS
The helical internal heat exchanger in all Cyclone
models swirls the hot gases, like a cyclone, against the
heat exchanger walls. This cyclonic action produces an
extra-high rate of heat transfer, resulting in extra-
high thermal efficiency. All Cyclone Xi models employ
an ingenious top-mounted down-fire pre-mix burner,
resulting in even higher efficiencies
.
CYCLONE Xi MODELS USE THE LATEST IN BURNER TECHNOLOGY
This exclusive design delivers 95% thermal efficiency on
the BTH-120 through BTH-250 and with the BTH-500.
The BTX-100, BTH-300 and BTH-400 boost efficiency
to up to 96%.
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