10
INSTALLATION CONSIDERATIONS
INSTALLATION CONSIDERATIONS
INLET
3/4” (FEMALE)
NPT
OUTLET
3/4” (FEMALE)
NPT
2 1/2”
(63.5 mm)
JUNCTION
BOX
D
FRONT VIEW
DEL 30/40/50
DRAIN
VALVE
B
C A
FRONT VIEW
DEN 30-52
DRAIN
VALVE
B
A
2 1/2”
(63.5 mm)
INLET
3/4” (FEMALE)
NPT
OUTLET
3/4” (FEMALE)
NPT
JUNCTION
BOX
D
TOP VIEW
DEL 30/40/50
TOP VIEW
DEL 6/10/15/20
TOP VIEW
DEN 30 - 52
INLET
3/4” (FEMALE)
NPT
OUTLET
3/4” (FEMALE)
NPT
FRONT VIEW
DEL 6/10/15/20
*(NO SIDE OUTLET AVAILABLE FOR DEL-6 MODELS)
3/4” NPT
RELIEF VALVE
OPENING
ALTERNATE OUTLET
3/4” (FEMALE) NPT
ELECTRICAL
CONNECTION
C
A
B
3/4” NPT
RELIEF VALVE
OPENING
C
3/4” NPT
RELIEF VALVE
OPENING
ANODES
ANODE
Figure 2. Rough-In Dimensions
Table 2. Rough-In Dimensions
Models Di-
mensions
No. of
Elements
Tank Capacity
A
B
C
D
Approx.
Shipping Weight
US Gals
Liters
Inches
mm
Inches
mm
Inches
mm
Inches
mm
Lbs.
kg.
Compact-6
1
6
23
15.50
394
14.25
362
11.00
279
-
-
35
15.9
Compact-10
1
10
38
18.25
464
18.00
457
12.50
318
-
-
54
24.5
Compact-15
1
15
57
26.00
660
18.00
457
20.50
521
-
-
58
26.3
Compact-20
1
20
76
22.25
565
21.75
552
15.38
391
-
-
73
33.1
Lowboy-30
2
36
136
32.00
813
24.00
610
24.00
610
8.00
203
118
53.5
Lowboy-40
2
38
144
32.00
813
23.00
584
24.00
610
8.00
203
118
53.5
Lowboy-50
2
51
193
36.00
914
26.50
673
25.00
635
8.00
203
172
78.0
Tall-30
2
40
151
49.75
1264
20.50
521
53.25
1353
8.00
203
118
53.5
Tall-40
2
50
189
59.00
1499
20.50
521
51.25
1302
8.00
203
125
56.7
Tall-52
2
55
208
56.50
1435
24.00
610
48.50
1232
8.00
203
145
65.8
LOCATING THE WATER HEATER
Property Damage Hazard
•
All water heaters eventually leak.
•
Do not install without adequate drainage.
CAUTION
The water heater should be located as close as possible to/or
centralized to the water piping system. The water heater should be
located in an area not subject to freezing temperatures.
The water heater should be located in an area where leakage of the
tank or connections will not result in damage to the area adjacent to
the heater or to lower floors of the structure.
When such locations cannot be avoided, a suitable drain pan should
be installed under the heater.
Such pans should be at least two inches deep, have a minimum
length and width of at least two inches greater than the diameter of
the heater and should be piped to an adequate drain.
Drain pans suitable for these water heaters are available from
your distributor or A.O. Smith Water Heater Parts Fulfillment, 125
Southeast Parkway, Franklin, TN 37068.
Printed on 7/25/2022 7:17 AM CT