two small external units with pressure gauges and freon 3d render

art wall mural graffiti blue street iron city window signage advertising furniture facade road design room vehicle air conditioner outdoor unit backyard climate cold compressor condenser condition conditioning cool cooler cooling electric electrical electricity fan illustration maintenance measure measurement multi system multi-system multisystem power refrigerant refrigerator repair sensor technician technology temperature ventilation vrf vrv two small external units pressure gauges freon render ??????? ???? ???????????? ???????? ????????? ??????? refilling ?????? ????