Specification

September, 2005
SUBMITTAL DATA
horizontal steam/hot water unit heaters
top and bottom connection, Model HSB
1-451.13
 All dimensions in inches.
 Dimensions shown are for Standard and Low Outlet Temperature models.
Copper Copper
Tube Tube Wall
Model Single Double Size Thickness
No. Serpentine Serpentine (Inches) (Inches)
HSB-18 X
_
5/8 OD 0.028
HSB-24 X
_
5/8 OD 0.028
HSB-33 X
_
1 OD 0.030
HSB-47 X
_
1 OD 0.030
HSB-63 X
_
1 OD 0.030
HSB-86 X
_
1 OD 0.030
HSB-108 X
_
1 OD 0.030
HSB-121 X
_
1 OD 0.030
HSB-165 X
_
1 OD 0.030
HSB-193
_
X 1 OD 0.030
HSB-258
_
X 1 OD 0.030
HSB-290
_
X 1 OD 0.030
HSB-340
_
X 1 OD 0.030
Table 1.1 - Dimensions 
Table 1.2 - Specifications
Junction Box
All units include an electrical junction box either integral to
the motor or attached to the unit casing. Explosion proof units
include an explosion proof junction box attached to the motor.
page 1 of 2
C
US
®
Core Type
Mounting Holes
Sizes 33-86,
3/8"-16 Tap,
Sizes 108-193,
1/2"-13 Tap
D Female Approx.
Model 115 Std. 115V Exp. Connections Fan Shipping
Number A B C Motor Motor E F G H NPT Diameter Wt. lb.
HSB-18 12-3/8 13 6 5 12 - 3 - - 3/4 9 16
HSB-24 12-3/8 13 6 6-1/2 12 - 3 - - 3/4 9 20
HSB-33 16-3/8 17-1/2 8-3/4 6-1/2 12-1/4 11 3-5/8 6 - 1-1/4 12 34
HSB-47 16-3/8 17-1/2 8-3/4 8 12-1/4 11 3-5/8 6 - 1-1/4 12 36
HSB-63 20-7/16 21-1/2 8-3/4 8 12-3/4 15 3-5/8 6 - 1-1/4 14 48
HSB-86 20-7/16 21-1/2 8-3/4 9 12-3/4 15 3-5/8 6 - 1-1/4 14 52
HSB-108 24-7/16 25-1/2 9-1/2 8 11-1/2 18 3-3/4 6-3/8 - 1-1/4 18 74
HSB-121 24-7/16 25-1/2 9-1/2 7-1/2 11 18 3-3/4 6-3/8 - 1-1/4 18 76
HSB-165 30-1/2 30-1/2 9-1/4 9-1/2 14 21-1/4 3-3/4 6-3/8 - 1-1/4 22 92
HSB-193 30-1/2 30-1/2 9-1/4 9-1/2 14 21-1/4 3-3/4 6-3/8 - 1-1/4 22 98
HSB-258 38-1/2 38-1/2 12-1/2 10-1/2 14 18-1/2 3-5/8 7-7/8 - 1-1/4 22 162
HSB-290 38-1/2 38-1/2 12-1/2 10-1/2 14 18-1/2 3-5/8 7-7/8 - 1-1/4 24 168
HSB-340 38-1/2 44-1/2 12-1/2 10-1/2 14 18-1/2 3-5/8 7-7/8 - 1-1/4 24 176