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

BOILER MODEL
NUMBER
Intermittent
Ignition w/Vent
Damper
PSB-3D
(1)
PSB-4D
(1)
PSB-5D
(1)
PSB-6D
(1)
PSB-7D
(1)
PSB-8D
(1)
PSB-9D
(1)
* MBH = 1,000 Btuh. Btuh = British Thermal Unit Per Hour.
† 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 suffix 'P' for Propane Gas.
(1)
Net AHRI steam Ratings shown are based on a piping and pickup allowance of 1.333.
Base selection of boiler size on "Net AHRI 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.

RATINGS AND CAPACITY

Table 1 - Ratings and Capacities
No. of
Sec.
Fuel Type
Natural Gas
3
Propane
Natural Gas
4
Propane
Natural Gas
5
Propane
Natural Gas
6
Propane
Natural Gas
7
Propane
Natural Gas
8
Propane
Natural Gas
9
Propane
Heating
Input
Capacity AFUE(%)
*MBTUH
*MBTUH
75 62
70 58
112 91
105 85
150 122
140 114
187 153
175 143
225 183
210 171
262 214
245 200
299 245
280 229
3
†Natural Gas
Net AHRI
Rating *Mbh
82.7 47
82.7 44
82.0 68
80.4 64
82.0 92
80.6 86
82.0 115
80.9 107
82.0 137
81.1 128
82.0 161
81.3 150
82.0 184
81.5 172
P/N 14683003, Rev. D [08/03/2015]
Net AHRI
Rating Sq. Ft.
196
183
283
267
383
358
479
446
571
533
671
625
767
717