Residential Gas Water Heaters
B
A
F
D
1/2" GAS
CONNECTION
T&P VALVE
HOT CONNECTION
COLD
CONNECTION
ANODE ROD*
C
E
*Location for optional top-mounted
T&P Valve if ordered from factory.
Corderite Combustion Containment (C3) design meets American National
Standards Institute standards (ANS Z21.10.1 - CSA 4.1 Standards) that deal with the
accidental or unintended ignition of flammable vapors, such as those emitted by gasoline.
Covered by four U.S. patents, C3 Technology gas water heaters feature a sealed
combustion chamber with air intake screen and a fireproof Corderite flame
arrestor built into the water heater base. In addition, a thermal cutoff (TCO)
device, integral with the thermocouple, is designed to shut off gas flow to the
burner and pilot if poor combustion is detected.
Flammable Vapor Ignition
Resistant C3 Technology
™
Water Heaters
If flammable vapors
accidentally enter the
combustion chamber,
the Corderite flame
arrestor is designed
so flames burn off
the top surface and
cannot escape down
through the arrestor.
A. Easy-to-light
piezo ignitor
B. View port for easy
burner inspection
inside sealed
combustion chamber
Recovery capacity based on actual performance tests.
Water Connections – 3⁄4" on all models.
† Propane Gas – 37,000 BTU input on all models.
For 10-Year Tank and 6-Year Parts Warranty, change “G” to “X” in Model Number (example: X VR-30).
A
B
Page 2 of 2
www.hotwater.com
For Technical Information and Automated Fax Service, call 800-527-1953. A. O. Smith Corporation reserves the right to make product changes or improvements without prior notice.
AOSRG45300
June 2010R
SERIES
FIRST
HOUR
RATING
GALLONS
ENERGY
FACTOR
GAL.
CAP.
BTU
INPUT
PER HOUR
NATURAL
†
RECOVERY
90ºF RISE
GALLONS
PER HOUR
R
VALUE
A B C D E F
DRAFT
HOOD
OUTLET
APPROX.
SHIPPING
WEIGHT
(LBS)
100/101 66 .63 30 40,000 41 16 62-3/8 58 18 13-3/8 8 51-7/8 3 or 4 126
100/101 71 .62 40 40,000 41 16 59-7/8 55-1/2 20-1/2 13-3/8 8 48-7/8 3 or 4
137
100/101 80 .62 50 40,000 41 16 60-7/8 56-1/2 22 13-3/8 8 50-3/8 3 or 4 172
DIMENSIONS IN INCHES
MODEL
NUMBER
GVR-30
GVR-40
GVR-50
SERIES 100/101
223062 AOSRG45300 2 3/19/10 10:01 AM
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