LG VRF Internal Air Conditioning Units

O Allah, send prayers and peace upon our Prophet Muhammad and upon his family and all his companions... I have 4 LG internal air conditioning units 2 units of 18,000 capacity 1 unit of 15,000 capacity 1 unit of 9,000 capacity Operate with a VRF system (one outdoor unit) Usage is not mentioned, as they were replaced with concealed units... Location: Rawdha - Sadr