MODEL
NUMBER
FIRST
HOUR
RATING
GALLON
CAPACITY
RECOVERY
90°F RISE
PER HOUR
ENERGY
FACTOR
BTU INPUT
PER HOUR
NATURAL
†
R
VALUE
A
B
C
D
E
F
APPROX.
SHIPPING
WEIGHT
HOT CONNECTION
COLD
CONNECTION
ANODE ROD*
E
*Location for optional top-mounted
T&P Valve if ordered from factory.
B
A
F
D
1/2" GAS
CONNECTION
T&P VALVE
C
(FVIR models only)
FVIR design meets
American National Standards Institute standards
(ANSI Z21.10.1 - CSA 4.1) that deal with the accidental or
unintended ignition of flammable vapors, such as those emitted by gasoline.
FVIR 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 (FVIR)
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 – 1" on 75-gallon model, 1-1/4" on 100-gallon model, 3⁄4" on all other models.
* Not equipped with FVIR Technology. 75 and 100-gallon models have factory-installed (non-heat trap) nipples, 75-gallon model has 80% efficiency,
998 BTU/hr. standby loss; 100-gallon model has 80% efficiency, 1146 BTU/hr. standby loss.
† Propane Gas – GCVT-40: 45,000 BTU input; GCVT-50: 45,000 BTU input; GCVX-50: 55,000 BTU input; GCV-65: 62,500 BTU input.
For 10-Year Tank and 6-Year Parts Warranty, change “G” to “X” in Model Number (example: XCVT-40), or change “F” to “P” in model number (example: PCG-75).
DIMENSIONS (INCHES)
DRAFT
HOOD
OUTLET
(LBS)
(GPH)
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.
Residential Gas Water Heaters
Revised April 2011
Page 2 of 2
AOSRG45400
The FVIR Series 100 models are certified from sea level to 7,700 ft. elevations. The FVIR Series 300 models are certified from sea level to 10,100 ft. elevations.
For high attitude versions of the 75 & 100-gallon models add SMR “S19”
®
GCVT-40
75
40
51
0.60
50,000
16
61-3/4 58-1/4
20
13-1/4
8
51-3/4
4
138
300
SERIES
GCVT-50
90
48
51
0.58
50,000
8
60-7/8 56-1/2
20
13-3/8
8
50-3/8
4
GCVX-50
93
50
67
0.58
65,000
16
63-7/8 59-1/2
22
15-1/2
8
54-1/8
4
GCV-65
116
65
67
0.57
65,000
16
65
60
24
15-1/2
8
54-1/4
4
FCG-75*
N/A
74
81
N/A
75,100
16
61
57
26-1/2
14-3/4
16
50-1/4
4
FCG-100*
N/A
98
81
N/A
75,100
10
68-1/2
65
27-3/4 15-3/16
16
57-3/8
4
172
195
215
275
350
100
100
100
300
300
