Gategator37
Senior Member
What are the code requirements on working space for low voltage VAV boxes (Water Type)?
VAV Box Cabinet clearances
- Thread starter Gategator37
- Start date
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jumper
Senior Member
- Location
- 3 Hr 2 Min from Winged Horses
VAV - Variable Air Volume box is part or a large HVAC system.
The OP mentioned water which makes me wonder if it is a Fan Coil Unit instead,
chris kennedy
Senior Member
- Location
- Miami Fla.
- Occupation
- 60 yr old tool twisting electrician
Agreed. The following is a widely practiced installation method for FCU's;
1) Mechanical contractor shall install FCU with a maximum of 4 inches between control box cover and adjecent ductwork, fire partitions, fire sprinkler piping, ect.
2) Electrical contractor shall install conduit(s) so at least one shut-off valve can only be opened ? way.
3) Electrical contractor shall install disconnect switch just out of reach.
4) Ceiling contractor shall install drop ceiling in a manner where as at least 1 ceiling tile will be damaged or destroyed trying to access FCU.
5) Mechanical contractor shall leave control enclosure cover on adjacent ceiling tile after start-up, cover screws shall be discarded.
- Location
- Massachusetts
Chris has graduated from the advanced course. 
Around here it all depends on the city or town, many are just like Chris describes, in another town the inspectors have made it their lives mission to insist on 36" clear space around the unit. Damn the costs! we are saving lives, move that sprinkler main!
Around here it all depends on the city or town, many are just like Chris describes, in another town the inspectors have made it their lives mission to insist on 36" clear space around the unit. Damn the costs! we are saving lives, move that sprinkler main!
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