Dispatched our Merced California area HVAC technician to a commercial customer for approved work. Upon arrival, after checking in with the IVR, mall management and store manager, our technician proceeded to the roof to replace the disconnect on a commercial Carrier system. Spliced and replaced damaged wiring, wired in disconnected. Powered up the unit and tested. System providing a 30* split despite high heat-load in store. Job complete.