ECR Dunkirk Plymouth Steam PSB-3D, Installation, Operation & Maintenance Manual

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3
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
BOILER MODEL
NUMBER
No. of
Sec.
†Natural Gas
Intermittent
Ignition w/Vent
Damper
Fuel Type
Input
*MBTUH
Heating
Capacity
*MBTUH
AFUE(%)
Net AHRI
Rating *Mbh
Net AHRI
Rating Sq. Ft.
(1)
PSB-3D
3
Natural Gas 75 62 82.7 47 196
Propane 70 58 82.7 44 183
(1)
PSB-4D
4
Natural Gas 112 91 82.0 68 283
Propane 105 85 80.4 64 267
(1)
PSB-5D
5
Natural Gas 150 122 82.0 92 383
Propane 140 114 80.6 86 358
(1)
PSB-6D
6
Natural Gas 187 153 82.0 115 479
Propane 175 143 80.9 107 446
(1)
PSB-7D
7
Natural Gas 225 183 82.0 137 571
Propane 210 171 81.1 128 533
(1)
PSB-8D
8
Natural Gas 262 214 82.0 161 671
Propane 245 200 81.3 150 625
(1)
PSB-9D
9
Natural Gas 299 245 82.0 184 767
Propane 280 229 81.5 172 717
* 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.
(1)
Add model number suffix 'P' for Propane Gas.