CASE STUDY VRF REPLACEMENT  OFFICE HEATING + COOLING Air Options has been designing / installing and maintaining equipment in excess of 20 years and strives to provide industry leading products. An existing clients site had 4x Mitsubishi Electric City Multi systems installed that where inspected and found to be inoperable / faulty, had previous attempts to repair by others. Upon inspection and evaluation we o%ered several options and design packages to replace with various combinations of units / indoors / capacities and e&ciencies. The client opted to replace the systems as a similar like for like replacement, be it redesigning indoor units to o%er a more uni
ed indoor format, using 950×950 and 600×600 4-way cassette units from Mitsubisbis PLFY range of products. As part of the in

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