COMMERCIAL BOILER
MODEL LB-500, 750 and 1000
Submittal Sheet
Job name ____________________________________
_____________________________________________
Address _____________________________________
_____________________________________________
_____________________________________________
Architect _____________________________________
Engineer _____________________________________
Contractor ___________________________________
Distributor ____________________________________
_____________________________________________
A.O.Smith Representative ______________________
_____________________________________________
Model _____________________ # of Units _________
MEETS OR EXCEEDS ASHRAE/IES 90.1B-1992
Input ____________________ Natural Gas
LP
Total Btuh Input_______________________________
ASME
Standard Controls
Standard Equipment
– Low air pressure switch
– Mounted flow switch
– Adjustable high limit
– On/Off switch
– 24 volt control system
– FM Approved Gas Train
– Main & redundant gas valves
– Auto reset high limit
– Manual reset high limit
– Hot surface electronic ignition
system
– Inconel 625 stainless super
alloy burner
– Bronze headers
– ASME pressure relief valve 30#
– LED inlet & outlet thermometers
– 160 psi ASME working pressure
– Authorized factory start-up
– 10 year heat exchanger warranty
– Low gas pressure switch
– Dia-Scan solid state diagnostic
module
Optional Equipment
IRI Gas Train
NY Code
Vent System*
CSD-1 Code
Sequencing Panel
California Code
Illinois School Code
Low Water Cutoff
*NOTE: All venting for direct/sealed vent systems must be provided by A. O. Smith or an approved supplier.
Contact your A. O. Smith representative for information.
Minimum clearances to combustibles:
4" rear, 0" top & sides, 6" vent
MODEL
LB-500/750
MODEL
LB-1000
Gas supply pressure 13.8" w.c. maximum natural and propane; 7" w.c. minimum natural,11.0" w.c. minimum propane.
RATINGS
A. O. Smith
Water Products Company
Ashland City, TN
A. O. Smith Water Products Co., Inc. On Line
A Division of A. O. Smith Corporation
A. O. Smith Corporation reserves the right to
make product changes or improvements at
any time without notice.
For Technical Information and
Automated Fax Service,
Phone: 800-527-1953
© A. O. Smith Corp., 2005
Printed in U.S.A.
ACG-MI002-0405N
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