Tech found the Trane odyssey air handler is heating properly with both heat strips. The AC only system runs the entire back half of the store in the dining area and by the drink coolers. The supply temp is 83 on the system that is heating. This is not adequate to heat the entire store. Tech verified both systems are straight AC. The kitchen system is a heat pump but controls an area separate from the store tech recommends installing at least a 10KW heat kit in the AC only system. Breaker is a 15 and would need to be replaced with a 60, disconnect has the small 30 amp fuses and would need to be replaced with a nonfusible. Electrician would need to update the electrical before installing the heat kit. Tech emailed information to the contact .