bsi138bsi138 138 113 354 85 82.0 5 19-14 28 40-716 6 504 bsi172 172 142 446 107 82.1 6 22-12 28 40-716 6 589 bsi207 207 171 533 128 82.1 7 25-34 30 40-716 7Manuals and User Guides for Crown Boiler BSI SERIES. We have 5 Crown Boiler BSI SERIES manuals available for free PDF download: Installation, Operating And Service Instructions, Installation Instructions Manual, Installation