SEP Unit DimensionsNOTE – SEP models 100, 115, 145, 175 and 200have a single fan. SEP models 230, 250, 300, 345and 400 have two fans.NOTE – Two mounting nuts are furnished onSEP models 100, 115, 145, 175 and 200. Fourmounting nuts are furnished on SEP models230, 250, 300, 345 and 400 models.*7-5/81/2 D 3/8" x 16 MOUNTING NUTS(194) FOR UNIT SUSPENSION(13)Additionalmounting nuts Ffurnished onSEP−230, ESEP−250,SEP−300,SEP−345 and GSEP−400 models FLUEonly. OUTLET1/2(13) ELECTRICAL INLETSCBEND VIEWTOP VIEWA HCOMBUSTION AIRINDUCERADJUSTABLELOUVERS DIRECTAIR DRIVE FANFLOWGASHEAT VALVEEXCHANGERSIDE VIEWA B C D E F G HUnit in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mmSEP-100SEP-115 31-5/16 795 32-3/16 817 20-3/16 512 11-1/2 292 19-1/16 484 11-3/4 298 3-1/4 83 7-7/8 200SEP−145SEP−175 31-5/16 795 32-3/16 817 23-1/8 588 11-1/2 292 22-1/16 560 8−1/2 216 3-1/4 83 8−11/16 220SEP−200SEP-230*SEP−250* 31-5/16 795 32-3/16 817 41-1/8 1045 3-11/16 97 40 1016 17-3/4 451 3-1/2 89 8-11/16 220SEP−300*SEP-345* 31-5/16 795 32-3/16 817 41-1/8 1045 3-11/16 97 40 1016 17-1/2 445 3-1/2 89 9-13/16 248SEP−400**Unit contains dual fans.ShippingThe heater is completely assembled and is shipped with installation and operating instructions, warranty certificateand flue transition. Check the unit for shipping damage. The receiving party should contact the last carrierimmediately if any shipping damage is found.2