TinnerFlow™VAVs, Fan Coils & Equipment Connections
VAV boxes, fan coils, FCUs, RTUs, AHUs, fans, flexible connectors, controls, actuators, and equipment access.
VAVs, Fan Coils & Equipment Connections questions
How do I determine the "right" and "left" hand side of a VAV box?2nd Year · Check firstWhat is the minimum clearance needed for the VAV control panel access?2nd Year · Stop / VerifyHow do I transition from rectangular duct to the round inlet of a VAV?2nd Year · Check firstShould a VAV box be hung independently of the ductwork?2nd Year · Check firstHow many duct diameters of straight pipe do I need before the inlet of a VAV box?2nd Year · Check firstWhat's the best way to support a heavy fan coil unit above a drop ceiling?2nd Year · Stop / VerifyWhere do the auxiliary drain pans go under a fan coil unit?2nd Year · Check firstHow do I install a flexible connection (canvas connector) at the equipment discharge?2nd Year · Stop / VerifyDo I need to internally line the first 10 feet of duct leaving the VAV box?2nd Year · Check firstHow do I read the equipment schedule to know which VAV goes in which room?2nd Year · Check firstWhat's the best way to modify a square-to-round transition if the VAV is off-center?2nd Year · Check firstHow do I route ductwork so I don't block access to VAV control panels?3rd Year · Check firstThe engineer specified a VAV that is physically larger than the ceiling space provided. What are my redesign options?4th Year · Check firstWhy is a hard elbow right at a VAV inlet a problem?3rd Year · Check firstWhat if structural bracing blocks a VAV access panel?3rd Year · Stop / VerifyWhy does a shallow condensate trap make an AHU drain pan overflow?3rd Year · Check firstCanvas connector tears on startup3rd Year · Check firstWhy is it bad to neck down a VAV discharge immediately after the box?3rd Year · Check firstWhy does a fan coil need a flexible connector at the duct connection?2nd Year · Standard CorrectionHow do you avoid cracking a VAV reheat coil connection when tightening piping?3rd Year · Stop / VerifyWhy would a large return plenum wall oil-can or buckle inward when the air handler starts?3rd Year · Check firstWhy does a VAV box act wrong when the flow sensor tubing is kinked?3rd Year · Check firstWhy would hot air whistle out of the reheat coil frame on a VAV box?2nd Year · Standard CorrectionWhy would a flexible fan connector balloon out and rip loose?3rd Year · Check firstWhy does a fan coil drain pan overflow if the P-trap is dry or unvented?3rd Year · Check firstWhy is a 45-degree entry bad right at a VAV inlet?3rd Year · Check first