My "instructions" were to replace AC with modern unit and controls. I can't recall but something like a Gen II unit was suppose to be a near drop in. The First project manager had other ideals and he purchased a Gen I unit, disassembled, threw away the controls and fitted the core, evaperator and fan on exisiting box (plus a LOT of labor charges) He planned to use heater slide lever with long cable to an engine location heater valve.
Our disagreements lead to owner assign new project manager and He was not going to use the long cable so I DON"T know how controls will work. actually HVAC work is big thing NOW and thus holding off on dash till finished.
The shop frabricated their own hoses and manifold for rotary compressor. New condensor, dyrier and fan but I've not been informed on any brand used,
due to disagreement with second project manager, 5177 was moved to the recently acquired facuiliy. Last week's head butt was over the differance between the rear trunk insert "fitting" over new coponents versus my instructions to modify trunk to allow condensor air flow access engine area. Luckily I talked to Owner and He agreed and though mod was being done and assrued me it would.
Hopefully next update will have HVAC completed and interior going in.