Dimension and capacity data – A.O. Smith VB/VW-500 User Manual
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Minimum clearances to combustibles:
• 4” (102mm) rear
• 0” (0mm) top & sides
• 6” (152mm) vent
TABLE 1, GAS AND ELECTRICAL CHARACTERISTICS
Manifold Pressure
Maximum Supply Pressure
Minimum Supply Pressure
Model
Type of Gas
Inches W.C.
kPa
Inches W.C.
kPa
Inches W.C.
kPa
VB/VW-500, 750, 1000
NATURAL
-2 to 3.5
-.5 to .9
11.0
3.44
4.0
2.0
VB/VW-500, 750, 1000
PROPANE
-2 to -3.5
-.5 to .9
13.8
3.44
8.0
2.0
Minimum Pressures must be maintained during all operating conditions.
Electrical Power: 120v, 60hz, and 30 amps.
Models
VB/VW-500
VB/VW-750
VB/VW-1000
Dimensions
inches
mm
inches
mm
inches
mm
Flue Outlet Diameter
6
152
6
152
6
152
Air Intake Diameter
4
102
4
102
4
102
Water Inlet
2” NPT
Water Outlet
2” NPT
Gas Inlet
1” NPT
A
56
1422
62
1575
71
1803
B
30
762
30
762
30
762
C
30
762
30
762
30
762
D
45
1143
51
1295
59
1499
E
36
914
42
1067
48
1219
F
16.5
419
16.5
419
16.5
419
G
8
203
8
203
8
203
H
15
381
15
381
15
381
J
9
229
9
229
9
229
K
11.5
292
11.5
292
11.5
292
L
11
279
11
279
11
279
M
10.5
267
10.5
267
10.5
267
N
33
838
33
838
33
838
P
31
787
31
787
31
787
DIMENSION AND CAPACITY DATA
TABLE 2. ROUGH-IN DIMENSIONS
FIGURE 1.