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Home My WebLink AboutAir System Sizing Summary for AHU-1FILE COPY Air System Sizing Summary for AHU-1 Project Name: Powers Residence 04/04/2018 Prepared by: 06:36AM Air System Information AirSystem Name................................................................ AHU-1 Equipment Class ...-.- ......................... SPILT AHU Air System Type ................................................... SZCAV Sizing Calculation Information Zone and Space Sizing Method: Zone CFM.................................. Sum of space airflow rates Space CFM ............................. Individual peak space loads Central Cooling Coil Sizing Data Total coil load ............................................... Total coil load ............ ............................ Sensible coil load . ................................ Coil CFM at Jul 1700................................. Max block CFM ................................... Sum of peak zone CFM ............................. Sensible heat ratio .................................. ft2/Ton ........................... BTU/(hr-ft2) ................... Water flow @ 10.0 'F rise ......................... Central Heating Coil Sizing Data Max coil load ................................................... Coil CFM at Des Htg................................... Max coil CFM.............................................. Water flow @ 20.0 'F drop ....................... Supply Fan Sizing Data Actual max CFM ............................................ Standard CFM ................................................ Actual max CFM/ft2.................................. ..............3.6 Tons ......... ..43.8 MBH ........... 40.3 MBH' ...........1600 CFM ...........1600 CFM ...........1600 CFM .......... 0.920 .......... "6.0 .......... 26.9 ............. N/A 13.4 MBH 1600 CFM 1600 CFM . N/A 1600 CFM 1599 CFM 0.98 CFM/ft2 Number of zones Floor Area............ Location ................. Calculation Months ................. Sizing Data .................................. Load occurs at ................................... nA DB/Vt/B............... .................... Entering DB / W B ........................... Leaving DB / W B ..... .. .. .................. CoilADP ................... ............................ Bypass Factor ...................................... Resulting RH........... ..................... Design supply temp ........................... Zone T-stat Check ............................. Max zone temperature deviation ... Load occurs at.... BTU/(hr-ft2) .......... Ent. DB / Lvg DB Fan motor BHP Fan motor kW.. Fan static ----------- Outdoor Ventilation Air Data Design airflow CFM........................................................................ 0 CFM CFM/person CFM/ft2.................................................. ................................. 0.00 CFM/ft2 ............................................1 - ..............................1627.0 ft2 Port St. Lucie, Florida Jan to Dec Calculated ................. Jul 1700 ............. 89.7 / 77.7 'F ............. 72.8 / 58.7 'F .............. 49.5 / 45.2 'F .......................... 46.9 'F ........................ 0.100 ..............................43 % .......................... 48.8 'F ...................1 of 1 OK ..----- ....... ........0.0 'F Des Htg ............... 8.2 69.6/77.4 'F 0.23 BHP 0.17 kW 0.50 in wg 0.00 CFM/person Air System Sizing Summary for AHU-2 Powers Residence 04104/2018 Air System Information Air System Name .................. . Equipment Class Air System Type...... ............... AHU-2 SPLT AHU ............ SZCAV Sizing -Calculation Information Zone and Space Sizing Method: Zone CFM................................ Sum of space airflow rates Space CFM ............................. Individual peak space loads Central Cooling Coil Sizing Data Total coil load ..................................... ...... ......... ...................1.9 Tons Totalcoil load.......................................................................22.5 MBH Sensible coil load _ .... .......................................... ................21.0 MBH Coil CFM at Jul 1600................. ................... ...... ........ .......... 800 CFM Maxblock CFM .......................... ..................... 800 CFM Sum of peak zone CFM ........................ ............................... ................... 800 CFM Sensible heat ra'io........................................ .......... 0.933 ft2/Ton .......----..... - --- ....................---- ---------...- ------ -- ...... 426.2 B'rU/(hr-ft2)..........................................................................28.2 Water flow @ 10.0 °F rise ...................................................... N/A Central Heating Coil Sizing Data Max coil load ..........--------------- ----- ....... Coil CFM at Des Htg.................................. Max coil CFM Water'flow @ 20.0 °F drop ...................... Supply'Fan Sizing Data Actual -max CFM .................... Standard CFM ........................ Actual max CFM/ft2............... 8.0 MBH, 800 CFM 800 CFM N/A 800 CFM 799 CFM 1.00 CFM/ft2 Number of zones ................................. ... 1 Floor Area ......................... ......... - ......... 800.0 ft2 Location ..................................................... Port St. Lucie, Florida Calculation Months ..................................................... Jan to Dec Sizing Data ........... ....................................................... Calculated Load occurs at .............................. OADBIWB................................ Entering DB / W B ......................... Leaving DB / WB. Coil ADP ...... -- -- Bypass Factor ............................. Resulting RH ..... .. ....................... Design supply temp ....................... Zone T-stat Check ......................... Max zone temperature deviation Load occurs at.... BTU/(hr-ft2) ........... Ent. DB / Lvg DB Fan motor BHP Fan motor kW - Fan static ........... Outdoor Ventilation Air Data Design airflow CFM .................................................................0 CFM CFM/person CFM/ft2............................................................... ..............0.00 CFM/ft2 I ....... ....... . .. ...... Jul 1600 ..........---..........90.6177.9 °F ............ ...... 72.7 / 5S.0 °F ................. ...... ..48.4147.0 °F ........... ........................ 45.7 °F ..................................... 0.100 ...................................41 % ........... ....................... . 47.8 ° F ................ .................1 of 1 OK .................. 0.0 °F Des Htg ............10.0 69.9/79.2 °F 0.12 BHP 0.09 kW 0.50 in wg 0.00 CFM/person