A.O. Smith 3400 User Manual
7
TABLE 3. ROUGH IN DIMENSIONS (DOUBLE)
Models
XB/XW-2000
XB/XW-2600
XB/XW-3400
Dimensions
inches
mm
inches
mm
inches
mm
Flue Outlet Diameter
8
203
8
203
10
254
Air Intake Diameter
8
203
8
203
10
254
Water Inlet
3 inch NPT
4 inch NPT
Water Outlet
3 inch NPT
4 inch NPT
Gas Inlet
2 inch NPT
3 inch NPT
A
47
1194
49
1245
57
1448
B
78
1981
80
2032
91
2311
C
36
914
37
940
37
940
D
22
559
22
559
22
559
E
40
1016
41
1041
41
1041
F
7
178
6
152
6
152
G
10
254
10
254
10
254
H
4
102
4
102
4
102
J
20
508
19
483
19
483
K
12
305
12
305
13
330
TABLE 4. RECOVERY CAPACITIES
Models Input Rating
(Btu/hr)
Output Rating
(Btu/hr)
Water
Flow
Temperature Rise - ΔT °F (°C)
40
(22)
60
(33)
70
(39)
80
(44)
90
(50)
100
(56)
120
(67)
140
(78)
XW-1000
920,000
854,680
GPH
2,593
1,728
1,482
1,296
1,152
1,037
864
741
LPH
9,815
6,543
5,608
4,907
4,362
3,926
3,272
2,804
XW-1300
1,300,000
1,207,700
GPH
3,664
2,442
2,094
1,832
1,628
1,465
1,221
1,047
LPH
13,868
9,246
7,925
6,934
6,164
5,547
4,623
3,962
XW-1700
1,700,000
1,579,300
GPH
4,791
3,194
2,738
2,395
2,129
1,916
1,597
1,369
LPH
18,136
12,090
10,363
9,068
8,060
7,254
6,045
5,182
XW-2000
2,000,000
1,858,000
GPH
5,636
3,758
3,221
2,818
2,505
2,255
1,879
1,610
LPH
21,336
14,224
12,192
10,668
9,483
8,534
7,112
6,096
XW-2600
2,600,000
2,415,400
GPH
7,327
4,885
4,187
3,664
3,257
2,931
2,442
2,094
LPH
27,737
18,491
15,850
13,868
12,327
11,095
9,246
7,925
XW-3400
3,400,000
3,158,600
GPH
9,582
6,388
5,475
4,791
4,259
3,833
3,194
2,738
LPH
36,271
24,181
20,726
18,136
16,121
14,508
12,090
10,363
FIGURE 2. DOUBLE HEAT EXCHANGER BOILER