A.O. Smith CONSERVATIONIST BTP-540A Specification Sheet
A 107.0
Revised December 2004
COMMERCIAL GAS DIRECT VENT
TANK-TYPE WATER HEATERS
BTP-540A, BTPV-540A, BTP-650A,
BTPV-650A, BTP-740A, BTPV-740A
STANDARD FEATURES
Meets ASHRAE/IES 90.1-1999 thermal efficiency and standby loss
requirements. Meets SCAQMD Low NOx requirements.
Professional Start-Up is provided.
BTP ATMOSPHERIC CONVENTIONAL (Vertical Venting) — A barometric
draft regulating damper is provided.
BTPV HORIZONTAL AND DIRECT VENT — Optional vent kits allow for
sidewall venting or direct venting.
GLASS-LINED TANK — Exclusive corrosion protection with glass-lining
and nickelous oxide on all interior tank surfaces. Multiple anodes provide
corrosion protection. Factory installed A.G.A./ASME rated Temperature and
Pressure relief valve.
POWERED GAS BURNER — Premix Low NOx burner design with internal
FGR. Features an internal blocked flue sensor, separate pilot system, internal
thermal cutoff & anti-flashback barrier. Inlet gas pressures: 14" W.C. max.,
8" W.C. min. natural gas only.
FULLY AUTOMATIC CONTROLS — Safety shut off, high temperature limit
control, dual thermostat (adjustable 120
°
F thru 180
°
F) for accurate
temperature control.
HIGH ALTITUDE INSTALLATION — Equipped with adjustable air intake
damper, easy to reset for high altitude installation by Authorized BTP
Start-Up agent.
DRAFT EQUALIZING COMBUSTION CHAMBER — Patented dome system
balances pressures inside the combustion chamber to ensure even heat
distribution, optimum flue loading and maximum heat transfer.
THICK PERMAFOAM INSULATION — Saves fuel, reduces standby heat loss.
JACKET — Is of heavy gauge steel with baked enamel finish over bonderized
undercoat.
U.L. CERTIFIED.
ASME CONSTRUCTION — Rated working pressure 160 PSI.
A.G.A./ASME TEMPERATURE & PRESSURE RELIEF VALVE — Factory installed.
OTHER FEATURES
• Two layers of high temperature ceramic fiber insulation surrounding
combustion chamber • Flame inspection port opening • Mounted on rugged
channel iron skids • Multiple anodes for protection.
EASY CLEANING — One handhole clean out provided.
CAUTION: Must be installed on noncombustible surface.
Based on 80% thermal efficiency obtained in A. O. Smith engineering laboratories.
NOTE: To compensate for the effects of high altitude areas above 2000 feet, recovery ratings
should be reduced approximately 4% for every 1000 feet above sea level.
Low NOx Certified
LIMITED WARRANTY OUTLINE
If the tank should leak anytime during the first three
years, under the terms of the warranty, A.O. Smith
will furnish a replacement heater less burner and
controls; installation, labor, handling and local de-
livery extra.
THIS OUTLINE IS NOT A WARRANTY.
For complete information, consult the written
warranty or A.O. Smith Water Products Company.
Warranty does not apply to product installed
outside of the United States of America or its
territorial possessions and Canada.
Storage
Input
Recovery
Recovery Rating
Capacity
Rating
Rating
Rating
Current Draw
U.S. Gals.
BTU/HR.
GPH
GPH
120V
Models
(Litres)
Nat.
100°°°°°F Rise
140°°°°°F Rise
60Hz 1 Phase
BTP(V)-540A
85 (261)
540,000
523
374
BTP(V)-650A
85 (261)
650,000
630
450
BTP(V)-740A
85 (261)
740,000
718
512
6.0 Amps
CONSERVATIONIST
®