ISU Facilities

Building Energy Plans

Horticulture Hall

Year Constructed: 1915 / 1980

68,830 Gross Square Feet

# Exemptions Summer Winter
1 (AHU2) Research Labs 003, 006, 14, 103, 139 24/7  24/7 
2 (AHU3) Research Labs 151, 156, 225, 233, 248, 256 24/7  24/7 


Unit Service Area Cool Heat System Type Summer Hours Winter Hours
AHU1 Ground Floor East  Yes  Yes  Mixed Air HVAC System   Run = 7am-6pm, Mon
Run = 7am-6pm, Tue
Run = 7am-6pm, Wed
Run = 7am-6pm, Thu
Run = 7am-6pm, Fri
Off = Sat
Off = Sun
Off = Holidays
 
Run = 7am-6pm, Mon
Run = 7am-6pm, Tue
Run = 7am-6pm, Wed
Run = 7am-6pm, Thu
Run = 7am-6pm, Fri
Off = Sat
Off = Sun
Off = Holidays
 
AHU2 Ground Floor West & 1st Floor  Yes  Yes  Mixed Air HVAC System   24/7  24/7 
AHU3 24/7  Yes  Yes  Mixed Air HVAC System   24/7  24/7 
AHU4 Auditorium 118  Yes  Yes  Mixed Air HVAC System   Room Scheduling  Room Scheduling 


Unit Service Area Control Strategies
AHU1  Ground Floor East  Thermostat set at 70/76 degrees. Heating and cooling controlled by thermostat that modulates dampers in a mixing box located in each zone. During “off” periods there will be an 80-degree upper limit and a 65-degree lower limit.
AHU2  Ground Floor West & 1st Floor  Thermostat set at 70/76 degrees. Heating and cooling controlled by thermostat that modulates dampers in a mixing box located in each zone. During “off” periods there will be an 80-degree upper limit and a 65-degree lower limit.
AHU3  24/7  Thermostat set at 70/76 degrees. Heating and cooling controlled by thermostat that modulates dampers in a mixing box located in each zone. During “off” periods there will be an 80-degree upper limit and a 65-degree lower limit.
AHU4  Auditorium 118  Thermostat set at 70/76 degrees. Heating and cooling controlled by thermostat that modulates dampers in a mixing box located in each zone. During “off” periods there will be an 80-degree upper limit and a 65-degree lower limit.


Date Ex Energy Conservation Action(s) Taken
3/17/2006 AHU3 = complete
3/17/2006 AHU2 = complete
7/14/2006   Completed MEA Holiday schedules and reviewed hours of operation
10/31/2006   Reviewed for winter schedule
5/10/2007   Reviewed for summer schedule
11/2/2007   Reviewed for winter schedule
9/16/2008   Reviewed for winter schedule.
5/12/2009   Reviewed for summer schedule
10/7/2009   Reviewed for winter schedule.


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