Smith Cast Iron Boilers 28HE - Manual (Page 19)

Page 19 SERIES 28HE BOILER INSTALLATION AND OPERATION INSTRUCTIONS
Minimum Feed Water Condensate Receiver
Boiler
I=B=R Gross Output Evaporation Rate
Pumping Rate Capacity
Model MBH kW GPM L/hr GPM L/hr Gallons Liters
28HE-S-4 900 264 1.9 7.3 3.9 14.8 37 140
28HE-S-5 1166 342 2.5 9.5 5.0 18.9 48 182
28HE-S-6 1433 420 3.1 11.7 6.2 23.5 59 223
28HE-S-7 1699 498 3.7 13.8 7.3 27.6 69 261
28HE-S-8 1965 576 4.2 16.0 8.4 31.8 80 303
28HE-S-9 2232 654 4.8 18.1 9.6 36.3 91 345
28HE-S-10 2498 732 5.4 20.3 10.7 40.5 102 386
28HE-S-11 2764 810 5.9 22.5 11.9 45.1 113 428
28HE-S-12 3031 888 6.5 24.7 13.0 49.2 124 469
28HE-S-13 3297 966 7.1 26.8 14.2 53.8 135 511
28HE-S-14 3563 1044 7.7 29.0 15.3 57.9 145 549
28HE-S-15 3830 1122 8.2 31.2 16.5 62.5 156 591
28HE-S-16 4096 1200 8.8 33.3 17.6 66.6 167 632
28HE-S-17 4362 1278 9.4 35.5 18.7 70.8 178 674
28HE-S-18 4629 1356 9.9 37.6 19.9 75.3 189 716
Table 9 - Steam Boiler Capacities
Note: These recommendations are considered normal for compact buildings. Where buildings are spread out,
additional receiver capacity may be necessary because of the extended time required for condensate to return to
the receiver.
Figure 22 - Typical Single Boiler Steam Piping