Boiler Ratings And Capacities - Dunkirk PSB-3D Installation, Operation & Maintenance Manual

Figure 1 - Dimensions
BOILER MODEL NUMBER
(1)
Standing
Intermittent
Sections
Pilot
Ignition w/
w/Vent
Vent Damper
Damper
PSB-3D PVSB-3D
PSB-4D PVSB-4D
PSB-5D PVSB-5D
PSB-6D PVSB-6D
PSB-7D PVSB-7D
PSB-8D PVSB-8D
PSB-9D PVSB-9D
* MBH = 1,000 Btuh. Btuh = British Thermal Unit Per Hour.
** Add 5½" to height for Vent Damper
† For altitudes above 2,000 ft. reduce input rate 4% for each 1,000 ft. above sea level.
Heating Capacity is based on DOE (Department of Energy) test procedure.
Add model number suffi x 'P' for Propane Gas.
(1)
The net I=B=R steam Ratings shown are based on a piping
and pickup allowance of 1.333.
Base selection of boiler size on "Net I=B=R Rating"
being equal to or greater than installed radiation in
square feet. Consult manufacturer before selecting a
boiler for installations having unusual piping and pickup
requirements,such as intermittent system operation,
exhaust piping systems, etc.

BOILER RATINGS AND CAPACITIES

Table 1 - Ratings and Capacities
†Natural Gas
No. of
Heating
Input
Capacity
*MBH
*MBH
3 75 62
4 112.5 91
150 122
5
6 187.5 153
7 225 183
8 262.5 214
9 299 245
Net Net
I=B-R I=B=R Input
Rating Rating Sq. *MBH
*MBH Ft.
47 196 70
68 283 105
92 383 140
115 479 175
137 571 210
161 671 245
184 767 280
Specifi cations and dimensions are subject to change
without notice.
4
†Propane Gas
Net
Net
Heating I=B=R
I=B=R
Capacity Rating
Rating
*MBH Sq. Ft.
*MBH
Radiation
58 44 183
85 64 267
114 86 358
143 107 446
171 128 533
200 150 625
229 172 717
Dimensions
(Inches)
Flue "A"
Diameter Width
5 11¼
6 14½
6 17¾
7 21
7 24¼
7 27½
7 30¾