How is a surface mount diffuser with round flex duct mounted on gypsum board ceiling? I though It mould be screwed through the ceiling flange to the drywall but I was told by the manufacturer this is not so. The celing trim oiece do not have screw holes. The diffuser is the perforated type and...
My Ruud forced air gas fired heater/central air unit fan motor seized after 4 years & 10 months. The motor is a GE 1/2 hp (4) speed motor model S018S with sealed bearings. I used to have a Lennox unit that run for 30 years. I run the fan continuous summer and winter. Suddenly it started...
If what you mean is learning about types of fans& their application, start off with reading Carrier Handbook of Air Conditioning System Design Part 6 Air Handling Equipment Chapter 1 Fans. Find information on the Internet also on Variable or Adjustable Frequency Control. Also Strobic fans & plug...
Usually there is not enough time & money budgeted on the job to do 3D design for commercial HVAC work. Design drawings are typically specified to be considered as diagramatic & it is up to the contractor doing the installation, to prepare shop drawings & coordinate installation & clearances with...
