SOW:
1. Replace ATCT Cab roof PVC system. (20 years warranty).
2. Install new roof curb for the rooftop AC Unit to fit the new unit. This includes ducting
work and will need to be done at night between the hours of 10:30 pm to 5:30 am. A crane
to lift the unit while preforming this work will be required. The rooftop unit is a Lennox
with Model #KCB120S4BN3Y and Serial # 5620K04202.
3. Remove and reinstall existing cab roof lightning protection system conductors and air
terminals. Replace with new all air terminal and conductor base plates per details shown
on drawing A016. Provide new mechanical grounding and bonding to all metallic
equipment, including HVAC, on the cab roof. Conductors that are not long enough shall be
spliced using UL 96 approved Lightning Protection devices with matching Lightning
protection conductor size.
