OKLAHOMA CITY - Quail Springs Mall, owned by General Growth Properties Inc., Chicago, is one of the largest shopping centers in Oklahoma City. The 23-year-old mall contains over 1 million square feet spread throughout its two stories and features 130 stores.
Until last year, the mall still had its original thirteen 105-ton rooftop units, which were having trouble keeping up with the increasing heating and cooling demands of the mall. In addition, the maintenance and operating costs for the rooftop units kept climbing higher and higher, leading the mall's senior HVAC technician, Mark Toomoth, to decide that it was time to replace them.