Package HP 5 - Right Side of store - upon arrival, blower door was off of the system. Tech replaced door for testing. technician found all electrical testing within spec. However, when checking the cooling, the technician found that the delta t was not sufficient. Temperature changeover was only about 11-12 degrees. Tech swept the indoor and outdoor coils with leak detector but the search came up negative. Previous notes on this system have stated there are some refrigerant challenges and this system has already been turned over to field supervisors office. System is capable of heating with assistance from heat strips. Package HP 4 - Middle of Store - appears to be new system installed in early 2024. No challenges found during today’s visit. System cleaned and inspected. System cooling and heating properly. Delta t on both heat and cool are between 19-22 degrees. Electric heat also tested and works to spec. Package HP 3 - Left Side of Store - upon arrival, tech found the system call