Rough-in-dimensions, Heater performance data – A.O. Smith 200M User Manual
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ROUGH-IN-DIMENSIONS
HEATER PERFORMANCE DATA
NOTE: To compensate for the effects of high altitude areas above 2000 feet, input rating, and therefore recovery ratings, should be
reduced approximately 4% for each 1000 feet above sea level.
Recovery rating of models shown in chart above are obtained by actual efficiency test data by recognized Certification Agency.
NOTE:
Recovery rate shown on each models rating plate is based on the requirements of ANSI Standard Z21.10.3, which stipulates
the data to be based on energy efficiency of 75%.
TABLE 3 - CAPACITY AND GAS AND ELECTRIC CHARACTERISTICS
Manifold Pressure
Maximum Supply Pressure Electrical Characteristics
Model
Type of Gas
Inches W.C.
kPa
Inches W.C.
kPa
Volts/Hz
Amperes
HW-120M thru 225M
NATURAL
3.5
0.87
10.5
2.61
120/60
<5
HW-120M thru 200M
PROPANE
10
2.49
13.0
3.23
120/60
<5
Minimum Supply Pressure, Natural Gas: 4.5 inches W.C. (1.12 kPa)
Minimum Supply Pressure, Propane Gas: 11.0 inches W.C. (1.74 kPa)
Minimum Pressure must be maintained under both load and no load (static and dynamic) conditions.
Models
HW-120M HW-160M HW-200M HW-200M
Dimensions
Inches
mm
Inches
mm
Inches
mm
Inches
mm
A
49 3/8
1254
50 1/8
1273
53 1/4
1353
60
1524
B
30 3/8
772
30 3/8
772
33 1/8
841
33 1/8
841
C
23 5/8
600
23 5/8
600
27 1/8
689
27 1/8
689
D
20 3/4
527
20 3/4
527
20 3/4
527
20 3/4
527
E
5 1/2
140
5 1/2
140
5 1/2
140
5 1/2
140
F
10
254
10
254
10
254
10
254
G
11 13/16
300
11 13/16
300
11 13/16
300
11 13/16
300
H
6
152
7
178
7
178
7
178
J
26 11/16
678
26 11/16
678
26 11/16
678
26 11/16
678
K
20 3/4
527
20 3/4
527
20 3/4
527
20 3/4
527
L
1 1/4 NPT 1 1/4 NPT 1 1/4 NPT 1 1/4 NPT
M
1 NPT
1 NPT
1 NPT
1 NPT
N
1/2 NPT
1/2 NPT
1/2 NPT
1/2 NPT
W
1 3/4
44
1 3/4
44
1 3/4
44
1 3/4
44
Approx.
Shipping
120 lbs.
54 Kg.
155 lbs.
70 Kg.
165 Lbs.
75 Kg.
175 lbs.
79 Kg.
Weight
TABLE 1 - ROUGH-IN DIMENSIONS
TABLE 2 - RECOVERY CAPACITIES
U.S. Gallons/Hrs. and Litres/Hr. at TEMPERATURE RISE INDICATED
Input
F°
20F°
30F°
36F°
40F°
50F°
54F°
60F°
70F°
72F°
80F°
90F°
100F°
108F°
110F°
120F°
126F° 130F° 140F°
Model
Btuh
KW
C°
11.1C° 16.6C° 20C° 22.2C° 27.7C° 30C° 33.3C° 38.8C° 40C°
44.4°
50C° 55.5C°
60C° 61.1C° 66.6C° 70C° 72.2C° 77.7C°
120,000
GPH
605
403
336
303
242
224
202
173
168
151
134
121
112
110
101
96
93
86
35
LPH
2290
1527
1272
1145
916
848
763
654
636
573
509
458
242
416
382
364
352
327
160,000
GPH
777
518
432
388
311
288
259
222
216
194
173
155
144
141
129
123
120
111
47
LPH
2941
1961
1634
1471
1176
1089
980
840
817
735
654
588
545
535
490
467
452
420
199,000
GPH
987
658
548
494
395
366
329
282
274
247
219
197
183
179
165
157
152
141
58
LPH
3737
2491
2076
1869
1495
1384
1246
1068
1038
934
830
747
692
679
623
593
575
534
225,000
GPH
1096
731
609
548
438
406
365
313
304
274
244
219
203
199
183
174
169
157
66
LPH
4149
2766
2305
2074
1659
1537
1383
1185
1152
1037
922
830
768
754
691
659
638
593
HW-120M
HW-160M
HW-200M
HW-2250M