Wruderman79
Member
- Location
- Ny,Ny,USA
Is there a code reference for supporting low voltage cables for hvac to the hvac unit itself ive seen a lot of times conduits attached to the ribs of ducts is this legal?
300.11(B)(2)
300.11(B)(2)
That section is not quoted in 725 or 760, and so does not apply. These sections state that only those portions of 300 quoted within them apply to them.
Is there a code reference for supporting low voltage cables for hvac to the hvac unit itself ive seen a lot of times conduits attached to the ribs of ducts is this legal?
I think what the OP is asking is if it's permitted to use ductwork to support conduits and wiring if the conduits and wiring are part of the HVAC system. My answer would be no. Other than whips to connect motorized dampers for instance, the wiring is no different than any other and must be supported independently.
-Hal
Horizontal I would agree, but if its coming down the side to the furnace vertically, i would think it would be ok, but that is JMO.
there are times when walls for support are too far from furnace, i am talking resi, (furnaces are placed in the center of an unfinished basement)
I think what the OP is asking is if it's permitted to use ductwork to support conduits and wiring if the conduits and wiring are part of the HVAC system. My answer would be no. Other than whips to connect motorized dampers for instance, the wiring is no different than any other and must be supported independently.
-Hal
....would you say the same thing for disconnects associated with a hvac system?
Until I can present a good technical reason not to do it, it will be allowed.