130-gallon / 500,000 BTU with up to 96% thermal efficiency
■
Venting flexibility for versatility and easy serviceability
■
Industry-first powered anodes for superior tank protection
■
Exclusive PermaGlas®Ultra Coat™glass lining
PA
PA
Total Control
TC
Cyclone Xi LCD
The intelligent control system, with
easy to navigate menu, provides
precise temperature control and
unit operating information.
■
Detailed heater status
information: blower, igniter,
igniter current, gas valve, flame
detection, air inlet restrictions,
exhaust vent restrictions,
acceptable gas supply pressure
■
Precise temperature setting
with actual tank temperature
at upper and lower probes
■
Alerts the user to any potential
corrosion-related leak
■
Maintains constant log of the
number of cycles and burner
operating time
■
Communicates fault details and
gives diagnostic information
■
Maintains a log of any fault
occurrence and the time a
fault occurred
Powered Anodes
*
The A. O. Smith powered
anode system provides the
most modern and innovative
technology available to provide
long-lasting tank protection.
*Not on 76,000 and 100,000 BTU models
■
Non-sacrificial anode does
not require maintenance
or inspection
PA
PA
■
Provides superior tank protection
to traditional aluminum or
magnesium anodes
■
Power level adjusts to changes
in water conditions for
optimum protection
■
Offers superior protection in
various water conditions
— Better protection in water
with low conductivity
— Eliminates the occurence of
hydrogen sulfide gas production
(rotten egg odor)
Page 4
COMMERCIAL WATER HEATERS
The Breadth Of Innovation
UNRIVALED VENTING VERSATILITY
The Cyclone Xi features power-vent and power direct-vent design, allowing clean uncontaminated
air to be drawn directly into the unit with the flue gas products vented conventionally through the
ceiling or directly through the wall to the outside.
Sealed Direct Vent Vertical
4˝ Vent
120´ Intake
120´ Exhaust
3´ Vent
50´ Intake
50´ Exhaust
Chart applies to BTH -120 through BTH-250 models only • 4˝ PVC required on BTH 300-500 for up to 70 equivalent feet of venting
Sealed Direct Vent Sidewall
4˝ Vent
120´ Intake
120´ Exhaust
3˝ Vent
50´ Intake
50´ Exhaust
Indoor Conventional Vertical
4˝ Vent
120´ Exhaust
3˝ Vent
50´ Exhaust
Indoor Conventional Sidewall
4˝ Vent
120´ Exhaust
3˝ Vent
50´ Exhaust
EASIER TO INSTALL
Because installation space today is almost always at a premium, we’ve designed the Cyclone to install in
an absolute minimum of space. The exhaust outlet and fresh air intakes are positioned so the water
heater can be placed either in a corner or against a wall.
ADVANCED GLASS LINING TECHNOLOGY
Exclusive PermaGlas®Ultra Coat™glass lining protects all Cyclone
water heaters. PermaGlas Ultra Coat provides superior protection for
all inner tank surfaces, as well as for the inside of the heat exchanger,
which would otherwise be vulnerable to corrosion from flue gas
condensate. The innovative helical coil minimizes weld points to
extend tank life.
STRENGTH IN NUMBERS
Cyclone Xi water heaters can be installed in manifolded
multiples to serve the highest demand applications in place of
boiler systems. For example, four BTH-500s can be manifolded
to provide total storage of 520 gallons with an input of
2,000,000 BTU.
Page 5
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 extrahigh 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%.
Page 6
Model GallonBTU/First HourRecovery In GPH HeightDiameter
Capacity Hr. Input
Delivery@ 100˚ Rise6(Inches)(Inches)
NaturalLPNaturalLPNaturalLP
BTX-80* 5076,000NA118NA83NA705/
BTX-100 50100,000100,00016416411611668
BTH-120 60120,000120,00018018013813855
BTH-150 100150,000150,000243243173173751/
BTH-199 100199,000199,00030030023023075
BTH-250 100250,000250,00035835828828875
BTH-300 130300,000300,00044044034934975
BTH-400 130399,900399,90055755746546575
BTH-500 130499,900499,90066766757657675
8
1
/
2
1
/
2
2
1
/
2
1
/
2
1
/
2
1
/
2
1
/
2
* Power-vent only—see spec sheet for details.
Commercial Gas Water Heaters
22
22
273/
273/
273/
273/
331/
331/
331/
4
4
4
4
8
8
8
INNOVATIVE SOLUTIONS FOR ALL
The expanded Cyclone line gives you a high-efficiency
commercial water heater choice for almost any
commercial application.
For complete specifications on Cyclone HE and Cyclone Xi,
consult Specification Sheets at www.hotwater.com.