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A.O. Smith DVE Manuale Utente

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Contents
Page
ROUGH-IN-DIMENSIONS .......................................
2
GET TO KNOW YOUR WATER HEATER ...............
2
RECOVERY CAPACITY ...........................................
3
APPROVALS ............................................................
3
MODEL AND RATING PLATE ..................................
4
FOREWORD ............................................................
4
GENRAL SAFETY INFORMATION ..........................
4
INSTALLATION ........................................................
5
Required Ability ........................................................
5
General ....................................................................
5
Location ...................................................................
5
Waterline Connections .............................................
5
Relief Devices ..........................................................
5-6
Temperature Limiting Control(s) ..............................
6
Temperature Regulation ..........................................
6
PIPING DIAGRAMS .................................................
7-14
ELECTRICAL
General ....................................................................
14
Branch Circuit ..........................................................
15
Amperage Table/Overcurrent Protection .................
16
Heater Circuits - DVE Models ..................................
16
Control Circuit .......................................................... 16-17
Power Circuit ............................................................ 18-21
OPERATION
General ....................................................................
22
Filling ........................................................................
22
Startup ......................................................................
22
High Temperature Limiting Device ...........................
22
Draining ....................................................................
22
Circulating Pump .....................................................
22
MAINTENANCE
General ....................................................................
23
Flushing ...................................................................
23
Sediment Removal ...................................................
23
Lime Scale Removal ................................................ 23-24
Checklist ..................................................................
24
Replacement Parts ..................................................
24
LEAKAGE CHECKPOINTS .....................................
25
LIMITED WARRANTY ..............................................
26
           Page
Recovery Rating
RECOVERY RATE IN GALLONS PER HOUR*
Temperature Rise °F
   Standard
BTU/
Models    KW Input
Hour
 30°
 40°
 50°
 60°
 70°
 80°
 90°
100°
110°
120°
130°
140°
DRE/DVE
6
20,478
82
62
49
41
35
31
27
25
22
21
19
18
DRE/DVE
9
30,717
123
92
74
62
53
46
41
37
34
31
28
26
DRE/DVE
12
40,956
164
123
98
82
70
61
55
49
45
41
38
35
DRE/DVE
13.5
46,075
184
138
111
92
79
69
62
55
50
46
43
40
DRE/DVE
15
51,195
205
154
123
102
88
77
68
61
56
51
47
44
DRE/DVE
18
61,434
246
184
148
123
105
92
82
74
67
61
57
53
DRE/DVE
24
81,912
328
246
197
164
140
123
109
98
89
82
76
70
DRE/DVE
27
92,151
369
276
221
184
158
138
123
111
101
92
85
79
DRE/DVE
30
102,390
410
307
246
205
176
154
137
123
112
102
95
88
DRE/DVE
36
122,868
492
369
295
246
211
184
164
148
134
123
113
105
DRE/DVE
40.5
138,226
554
418
3332
277
237
208
185
166
151
138
128
119
DRE/DVE
45
153,585
615
461
369
307
263
230
205
184
168
154
142
132
DRE/DVE
54
184,302
738
553
443
369
316
277
246
221
201
184
170
158
*Figured at 1 KW (3413 Btu) = 4.1 gallons at 100°F temperature rise.
To determine recovery rate per minute, divide recovery rate per hour by 60.
Approvals
All models bear the
All models are listed
National Sanitation
by Underwriters
Foundation seal of
Laboratories Inc.
approval.