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LOW-NOx POWERED-BURNER MODELS
CAPACITY, INPUT AND OUTPUT
BTU
INPUT
Gallons
MODEL
PER
or
NUMBER
HOUR
Litres
BTP 540A
U.S. Gallons
540,000
BTPV 540A
Litres
U.S. Gallons
BTP 650A
650,000
Litres
BTPV 650A
U.S. Gallons
BTP 740A
740,000
Litres
BTPV 740A
Based on 80% Thermal Efficiency obtained in A. O. Smith engineering laboratories.
To compensate for effects of high altitude above 2,000 feet, recovery ratings should be reduced approximately 4%
for every 1,000 feet above sea level.
Current Draw (120V, 60Hz, 1 Phase): 6.0 Amps
DIMENSIONS AND WEIGHT – ALL MODELS
Inches
or
A
B
C
CM
Inches
80-3/4
73
32-1/4
CM
205.1
185.4
81.9
*D dimension is for atmospheric vent size (BTP models).
**E dimension is for direct and sidewall vent size (BTPV models).
***Minimum gas supply pipe is 1-1/4". See Reference Manual, Table 7 for gas supply pipe size.
Water heater(s) shall be A. O. Smith Model __________________ or equal, with maximum storage capacity of 85 gallons, an
input rating of __________ BTU/Hr., a recovery rating of ___ GPH at 100º F temperature rise, and minimum thermal efficiency
of 80%. Heater(s) shall meet ASHRAE/IESNA 90.1-1999 requirements for thermal efficiency and standby loss, and meet
SCAQMD R1146.2 low-NOx requirements. In addition, heater(s) shall: 1) Include a powered gas burner, redundant main gas
valves, gas pressure regulator and flame inspection port. 2) Include a high-temperature limit control, dual-bulb thermostat for
accurate temperature control and anti-stacking compensation and a factory-installed AGA rated temperature and pressure
relief valve. 3) Be equipped with 1-1/2˝ NPT water inlet and outlet and a boiler-type handhole cleanout. 4) Shall be constructed
and stamped in accordance with ASME Boiler and Pressure Vessel Code and be so marked for a maximum working pressure
of 160 PSI. 5) Have a glass-lined steel tank with multiple anodes for corrosion protection, and polyurethane foam insulation.
6) Tank shall have a 3-year limited warranty against corrosion as outlined in the written warranty.
Venting: BTP heater(s) shall be supplied with a Barometric Draft Regulator for conventional atmospheric venting.
BTPV heater(s) shall be supplied with an optional vent kit allowing for horizontal sidewall venting or direct venting.
Burner and Controls: Burner(s) shall be pre-mix design, with internal FGR and thermal cutoff, separate spark pilot ignition
system, integral blocked flue sensor, glass view port, main gas regulator, automatic gas valve, manual test cock and manual
gas shutoff. Burner(s) must be factory-installed, tested and started by an A. O. Smith Authorized BTP Start-up Agent before
being placed into operation.
www.hotwater.com
500 Tennessee Waltz Pkwy, Ashland City, TN 37015
©2006 A.O. Smith Corporation
Commercial Gas Water Heaters
RECOVERY-GALLONS
FIRST
PER HOUR AT °F
HOUR
TEMPERATURE RISE
RATING
GPH
40°F
TANK
100° F
or
SIZE
RISE
4°C
LPH
85
583
GPH
1309
321.7
2206.7
LPH
4954.6
GPH
85
690
1579
LPH
321.7
2611.7
5976.5
85
1794
GPH
778
321.7
LPH
6790.3
2944.7
DIMENSIONS
D
E
F
G
9
26-1/2
26-1/2
93
29-1/2
22.9
67.3
67.3
236.2
74.9
SUGGESTED SPECIFICATION
G
Printed in U.S.A.
®
100°F
140°F
56°C
78°C
523
374
1979.6
1415.6
630
450
2384.6
1703.3
718
512
2717.6
1937.9
SHIPPING
GAS
CONN.***
WEIGHT
H
I
48-1/2
1
˝
950 Lbs.
-
123.2
431.8 Kg
For Technical Information and Automated Fax Service, call 800-527-1953.
A. O. Smith reserves the right to make product changes or improvements without prior notice.
ACGSS00305
Sept 2006R
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