0882023-Board-Book.pdf — PaddleOCR-VL (Baidu)

This project entails replacing the broken air handler AC-2/ACU-2 in the Kentucky State University Nutrition Building. Adding a new air handler outside would require moving the existing generator. The estimated cost for the air handler replacement and generator relocation is $226,000. The lead time for the basis of design packaged outdoor unit is 6 weeks.
Apart from the air handling units, most other mechanical equipment in the building is 30 years old. CCE recommends replacement of equipment that is beyond estimated service life as well as adding a vapor barrier, code complaint general exhaust, and new grilles and diffusers to the whole building. All of the recommendations are detailed in this report along with explanations. The estimated total cost for all other recommendations is $213,671.

Refer to the attached schematic drawings for equipment locations and correlated equipment tags.

Air handler AC-1 was replaced with a packaged outdoor unit on grade in a previous project 7 years ago. The air handler serves the Wet Lab portion of the building and will be existing to remain.
Air handler AC-2 is a 4,005 CFM, 320 MBH, split system, DX unit with a 510 MBH natural gas duct furnace. The outdoor unit no longer functions. The air handler and duct furnace are thirty years old.

The attic's ductwork remains in good condition and is adequately insulated. To accommodate the office space, one of the four supply runouts leading to the analysis lab has been rerouted to the office using a 30' flex duct. Additionally, a 16" return runout has been ducted to the analysis lab.
The facility personnel reported that the electric duct heaters used for room temperature control are not functioning. The electric ducts heaters are 30 years old.

Exhaust Fan EF-1 and EF-3 are inline axial fans that ventilate the attic space and appear to be functional. However, the fans are 10 years beyond the ASHRAE average service life for an axial fan.
EF-2 is an inline axial fan that serves as lab exhaust for the live feed and feed prep rooms as well as providing exhaust to AC-1. However, when AC-1 was replaced in a previous project, the duct branch serving AC-1 was capped. The fan is 10 years beyond the ASHRAE average service life for an axial fan.
EF-4 is an inline axial fan serving the restroom and storage room and is not operational.
All inline exhaust fans are located in the attic.
HEF-1,2 are 1970 CFM, fume hood exhaust fans with 12" PVC exhaust stacks. The fans apparently did not function as designed, and duct tees with butterfly valves have been