Bradford White SW-2-40R-L Installation And Operating Manual page 9

Specifications continued-
Table 4: Water Heater Performance
Model
30-Gal. / Res.
40-Gal. "R" / Res.
50-Gal. "R" / Res.
65-Gal. / Res.
65-Gal. / Com.
80-Gal. / Res.
80-Gal. / Com.
120-Gal. / Res.
120-Gal. / Com.
NOTES: Based on 200°F boiler water temperature and 50°F potable
water inlet temperature.
Table 5: Water Heater Performance
MODEL
30-Gal. / Res.
40-Gal. "R" / Res.
50-Gal. "R" / Res.
65-Gal. / Res.
65-Gal. / Com.
80-Gal. / Res.
80-Gal. / Com.
120-Gal. / Res.
120-Gal. / Com.
Maximum First
Hour Rating
(Gal/Hr) @
140°F 115°F
226 342
235 351
244 360
258 374
396 582
272 388
408 594
309 425
445 631
Hot Water
Availability
(Minutes)
5.5
7.5
9.0
11.0
10.5
13.5
13.2
20.8
20.6
Continuous
Draw Rating
(Gal/Min) @
140°F 115°F
3.3 5.2
3.3 5.2
3.3 5.2
3.3 5.2
5.7 8.8
3.3 5.2
5.7 8.8
3.3 5.2
5.7 8.8
Coil Heat
Transfer Area
(Sq Ft)
14.2
14.2
14.2
14.2
27.2
14.2
27.2
14.2
27.2
9
Approximate
Boiler Output
Needed For
Ratings (BTU/hr)
180,000
180,000
180,000
180,000
300,000
180,000
300,000
180,000
300,000
Pressure Drop at
Rated Heat Source
Flow Rate
(Feet of Head)
1.5
1.5
1.5
1.5
5.0
1.5
5.0
1.5
5.0