Dimension And Capacity Data; Table 1. - Gas And Electrical Characteristics; Minimum Pressures Must Be Maintained During All Operating Conditions; Electrical Power: 120V, 60Hz, And 30 Amps - A.O. Smith VB-500, VB-750 Instruction Manual

Minimum clearances to combustibles:
• 4" (102mm) rear
• 0" (0mm) top & sides
• 6" (152mm) vent

TABLE 1. - GAS AND ELECTRICAL CHARACTERISTICS

Model
VB/VW-500, 750, 1000
VB/VW-500, 750, 1000

Minimum Pressures must be maintained during all operating conditions.

Electrical Power: 120v, 60hz, and 30 amps.

TABLE 2. - ROUGH-IN DIMENSIONS

Models
Dimensions
Flue Outlet Diameter
Air Intake Diameter
Water Inlet
Water Outlet
Gas Inlet
A
B
C
D
E
F
G
H
J
K
L
M
N
P

DIMENSION AND CAPACITY DATA

Manifold Pressure
Type of Gas Inches W.C.
NATURAL -2 to -3.5
PROPANE -2 to -3.5
VB/VW-500
inches mm
6 152
4 102
56 1422
30 762
30 762
45 1143
36 914
16.5 419
8 203
15 381
9 229
11.5 292
11 279
10.5 267
33 838
31 787
FIGURE 1.
Maximum Supply Pressure
kPa Inches W.C.
-.5 to .9 14
-.5 to .9 14
VB/VW-750
inches mm
6 152
4 102
2" NPT
2" NPT
1" NPT
62 1575
30 762
30 762
51 1295
42 1067
16.5 419
8 203
15 381
9 229
11.5 292
11 279
10.5 267
33 838
31 787
4
Minimum Supply Pressure
kPa Inches W.C.
3.44 4.0
3.44 8.0
VB/VW-1000
inches mm
6
4
71 1803
30 762
30 762
59 1499
48 1219
16.5 419
8 203
15 381
9 229
11.5 292
11 279
10.5 267
33 838
31 787
kPa
2.0
2.0
152
102