ISU Facilities

Building Energy Plans

Catt Hall

Year Constructed: 1893

29,745 Gross Square Feet

# Exemptions Summer Winter
1 AHU1, 2nd floor operate extended hours, Dean's office working evenings and weekends Schedule 7 days a week, see hours below  Schedule 7 days a week, see hours below 


Unit Service Area Cool Heat System Type Summer Hours Winter Hours
AHU1 Serves entire building  Yes    HVAC System with Reheat   Run = 6am-7pm, Mon
Run = 6am-7pm, Tue
Run = 6am-7pm, Wed
Run = 6am-7pm, Thu
Run = 6am-7pm, Fri
Run = 7am-7pm, Sat
Run = 8am-7pm, Sun
Off = Holidays 		 Run = 6am-7pm, Mon
Run = 6am-7pm, Tue
Run = 6am-7pm, Wed
Run = 6am-7pm, Thu
Run = 6am-7pm, Fri
Run = 7am-7pm, Sat
Run = 8am-7pm, Sun
Off = Holidays 
HS1 Heating Hot Water System (HS1) Radiation and Reheat    Yes  HVAC System with Reheat   Radiation and
Reheat Hot Water System
Out-door Air Enable
Setpoint Schedule.

Run = 6am-5pm, Mon-Sun
Day = 65F
Night = 45F
Run = Holidays
Night = 45F
 		 Radiation and
Reheat Hot Water System
Out-door Air Enable
Setpoint Schedule.

Run = 6am-5pm, Mon-Sun
Day = 65F
Night = 45F
Run = Holidays
Night = 45F
 


Unit Service Area Control Strategies
AHU1  Serves entire building  Thermostat set at 70-degrees all year. Cooling controlled by a duct temperature sensor for 76-degree return air. Heating controlled by thermostat and reheat coils in VAV boxes. Room temperature will naturally fluctuate between 70 degrees and 76 degrees depending on outside air temperature and heat load in the area served. During “off” periods there will be an 80-degree upper limit and a 65-degree lower limit. Set back domestic water temperature to 120 degrees Identify” last out, lights off” Person or process


Date Ex Energy Conservation Action(s) Taken
3/13/2006 1  AHU1 = extended schedule = complete
7/11/2006   Domestic Hot Water scheduled 0n/Off, day/night, 6/1700
7/11/2006   Heating Enable setpoint scheduled 65/45, day/night, 6/1800
7/11/2006   Completed MEA Holiday schedules and reviewed hours of operation
10/30/2006   Reviewed for winter schedule
5/10/2007   Reviewed for summer schedule
11/1/2007   Reviewed for winter schedule
5/15/2008   Reviewed for summer schedule
9/9/2008   Reviewed for winter schedule.
5/12/2009   Reviewed for summer schedule
10/1/2009   Reviewed for winter schedule.


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