ISU Facilities

Building Energy Plans

Durham Center

Year Constructed: 1989

108,200 Gross Square Feet

# Exemptions Summer Winter
1 AHU #1 – serving 1st , 2nd, and 3rd floor (South Interior spaces) 6 AM - 6 PM, 70 - 76 temperature range  6 AM - 6 PM, 70 - 76 temperature range 
2 AHU #2 – serving 1st , 2nd, and 3rd floor (South Perimeter spaces) 24/7, 70 - 76 temperature range  24/7, 70 - 76 temperature range 
3 AHU #3 – serving 2nd and 3rd floor North 6 am - 6 pm, 70 - 76 temperature range  6 am - 6 pm, 70 - 76 temperature range 
4 AHU #4 – serving Basement , 1st floor North, computer rooms (Liebert), auditorium 171 7am - 5:30 pm, 70 - 76 temperature range  7am - 5:30 pm, 70 - 76 temperature range 
5 AHU #1 - Room 348 24/7, 70-76F degrees June 06 thru october 06   
6 Room 348 Computer lab 24/7 at 78 degrees  24/7 at 70 degrees 
7 AHU #4 Solutions Center extended hours: Mon-Thu 7-9:00, Fri 7-5:00, Sun 10-7:00 Mon-Thu 7-9:00, Fri 7-5:00, Sun 10-7:00  Mon-Thu 7-9:00, Fri 7-5:00, Sun 10-7:00 


Unit Service Area Cool Heat System Type Summer Hours Winter Hours
AH1 FLOORS 1st, 2nd, and 3rd INTERIOR  Yes  Yes  Mixed Air HVAC System   Run=24/7  Run=24/7 
AH2 FLOORS 1st, 2nd, and 3rd EXTERIOR   Yes  Yes  Mixed Air HVAC System   Run = 24/7  Run = 24/7 
AH3 FLOORS 2nd and 3rd NORTH  Yes  Yes  Mixed Air HVAC System   Run= 24/7  Run=6am-10pm, Mon
Run=6am-10pm, Tue
Run=6am-10pm, Wed
Run=6am-10pm, Thu
Run=6am-6pm, Fri
Run=7am-12pm, Sat
Off=Sun
Off=Holidays  
AH4 FLOORS Basement and 1st NORTH  Yes  Yes  Mixed Air HVAC System   Run= 24/7   Mon=6am-10pm
Tue=6am-10pm
Wed=6am-10pm
Thu=6am-10pm
Fri=6am-6pm
Sat=7am-12pm
Sun=10am-7pm
Off=Holidays 
AH5 ATRIUM SMOKE EVACUATION      Exhaust Fan   OFF 24/7 EXCEPT FOR FIRE  OFF 24/7 EXCEPT FOR FIRE 
EXH-B1 Restroom      Exhaust Fan   Mon=7am-midnight
Tue=7am-midnight
Wed=7am-midnight
Thu=7am-midnight
Fri=7am-midnight
Sat==7am-midnight
Sun=7am-10pm
Off=Holiday 
Mon=7am-midnight
Tue=7am-midnight
Wed=7am-midnight
Thu=7am-midnight
Fri=7am-midnight
Sat==7am-midnight
Sun=7am-10pm
Off=Holiday 


Unit Service Area Control Strategies
AH1  FLOORS 1st, 2nd, and 3rd INTERIOR  6am - 6pm, Mon - Fri, 70 - 76 degree temperature range off sat,sun,holidays
AH2  FLOORS 1st, 2nd, and 3rd EXTERIOR   24/7 operation all days, 70-76 temperature range
AH3  FLOORS 2nd and 3rd NORTH  6am - 6pm Mon-Friday, 70 - 76 temperature range off Sat,Sun,Holidays
AH4  FLOORS Basement and 1st NORTH  7am - 5:30pm Mon - Friday, 70-76 temperature range off Sat,Sun,Holidays
EXH-B1  Restroom  Off when unoccupied


Date Ex Energy Conservation Action(s) Taken
5/17/2006 AHU4 = complete
5/17/2006 AHU3 = complete
5/17/2006 AHU2 = complete
5/17/2006 AHU1 = complete
6/21/2006 AHU1 = Run 24/7 = UNTIL END OF OCTOBER
7/12/2006   Completed MEA Holiday schedules and reviewed hours of operation
10/30/2006   Reviewed for winter schedule
12/21/2006 AHU1= Run 24/7 summer and winter
5/10/2007   Reviewed for summer schedule
5/21/2008   Reviewed for summer schedule.
9/15/2008   Reviewed for winter schedule.
5/7/2009   Reviewed for summer schedule
10/1/2009   Reviewed for winter schedule.


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