Rough-In Dimensions - A.O. Smith Burkay HW-300 Installation Operation & Maintenance

ROUGH-IN DIMENSIONS

HW/HWB-610
AND HW-670
NATURAL GAS ONLY
TABLE 1
DIMENSIONS IN INCHES
A Overall height
B Height to top of jacket
C Floor to center line water inlet
D Diameter of jacket
E Floor to center line water outlet
F Draft diverter outlet diameter
G Floor to center line gas inlet
H Overall depth
J Support height
K Width of control string (approx.)
L Pipe size of water inlet (NPT)
M Pipe size of water outlet(NPT)
N Pipe size of gas inlet (NPT)
P Control string plus 1/2 jacket dia. (approx.)
Q Water outlet to jacket
R Water inlet casting to center line of jacket
S Horizontal length between water inlet and outlet
T Control string from jacket
Approx. shipping weight lbs. (Kilograms)
NOTE: All dimensions in inches (millimeters) except pipe size which is NPT.
TABLE 2, SPECIFICATIONS - CANADIAN MODELS ONLY
Model Type of Gas
HWB-300 Natural & Propane
HWB-399 Natural & Propane
HWB-420 Natural & Propane
HWB-520 Natural & Propane
HWB-610 Natural
HWB-610 Propane
Ratings shown are for current modern heating system design. Where A.O. Smith boilers are connected to heavy, cast iron radiator systems or where unusual pick-up or
large size piping conditions exist, reduce ratings by 10%.
NOTE: To compensate for the effects of high altitude areas above 2000 feet, the input, output and heating load ratings should be reduced
approximately 4% for each 1000 feet above sea level.
HWB/
HW-300
65 (1651)
43-1/4 (1099)
36 (914)
25-1/4 (641)
12 (305)
8 (203)
16-1/2 (419)
29-5/8 (753)
9 (229)
14 (356)
1-1/4
1-1/4
3/4
26-5/8 (676)
1 (25)
10-1/8 (257)
5-3/8 (137)
5 (127)
240 (109)
Maximum
Maximum I.A.S.
BTUH(KW) BTUH(KW)
300,000 (88) 247,200 (72)
399,000 (116) 322,790 (95)
420,000 (123) 344,400 (101)
520,000 (152) 429,000 (126)
610,000 (179) 502,600 (147)
610,000 (179) 488,000 (143)
EXTRA OPENING
FOR THERMOMETER
AND RELIEF VALVE
HW/HWB-520, 610
AND HW--670
MODELS
HWB/ HWB/
HW-399 HW-420
57-1/8 (1451) 57-1/8 (1451) 68-5/16 (1735)
45-1/8 (1146) 45-1/8 (1146)
38-3/4 (984) 38-3/4 (984)
27 (686) 27 (686)
12 (305) 12 (305)
10 (254) 10 (254)
16-3/4 (425) 16-3/4 (425)
31-1/2 (800) 31-1/2 (800)
9 (229) 9 (229)
14 (356) 14 (356)
1-1/2 1-1/2
1-1/2 1-1/2
1 1
27-1/2(699) 27-1/2 (699)
1 (25) 1 (25)
11-1/4 (286) 11-1/4 (286)
5-1/2 (140) 5-1/2 (140)
5 (127) 5 (127)
291 (132) 291 (132)
Maximum Max. Heat Transfer
Heat Loss Load Surface Area (Sq. Ft.) Surface Area (Sq. Ft.)
210,120 (62)
274,371 (80)
292,740 (86)
364,650 (107)
427,210 (125)
414,800 (121)
2 2 2 2 2
Prop.
HWB/ HWB/
HW-520 HW-610/670 HW-610/670
67 (1702)
56-1/4 (1429) 56-1/4 (1429) 56-1/4 (1429)
46 (1168) 46 (1168)
27 (686) 27 (686)
12 (305) 12 (305)
10 (254) 12 (305)
18 (457) 18 (457)
36-1/2 (927) 36-1/2 (927) 36-1/2 (927)
9(229) 9 (229)
11(279) 11 (279)
2 2
2 2
1 1
24-1/2 (622) 24-1/2 (622) 24-1/2 (622)
3-1/2 (89) 3-1/2 (89)
12 (305) 12 (305)
5-3/4 (146) 5-3/4 (146)
7 (178) 7 (178)
361 (164) 361 (164)
Max. Heat Transfer
1,410 (.41) 1,051 (.31)
1,829 (.54) 1,372 (.40)
1.952 (57) 1,464 (.43)
2,431 (.71) 1,823 (.53)
2,848 (.83) 2,136 (.61)
2,765 (.81) 2,074 (.61)
Nat.
HWB/
64-3/4 (1645)
46 (1168)
27 (686)
12 (305)
12 (305)
18 (457)
9 (229)
11 (279)
2
2
1
3-1/2 (89)
12 (305)
5-3/4 (146)
7 (178)
361 (164)