ventilating |
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navigate by keyword : air building commercial compressor concept condenser condition conditioner conditioning cool cooling electrician engineer engineering fan heat heating heaven hvac industrial industry inspect inspecting inspection machine maintenance man operating plumber refrigerant refrigeration repair repairing repairman roof rooftop service sky system technician technology temperature unit units ventilating ventilation worker x28 x29 |
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HVAC (Heating, Ventilating, Air Conditioning) maintenance concept. Conditioner units on roof of building and worker. |
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