Each HVAC condenser must have dedicated disconnect box?

Status
Not open for further replies.
A

Andy Delle

Senior Member
Location
Los Angeles CA
We have a 40a inside breaker feeding a 125a 4 slot exterior sub panel at the units. One 2P 25a for a 2.5ton and one 2P 20a for a 1ton. The HVAC company says each condenser needs a a dedicated disconnect box, not just a dedicated breaker.

Huh? Where is this in the NEC. I realize each condenser must have a local external disconnect MEANS, but that doesn't say they must be separate boxes? Or does it specifically mean just that?

The electrical / mechanical inspection has not occurred yet.
 
Last edited:
You forgot to make it a 6 space loadcenter so you can connect the required 120 volt receptacle within 25 feet of the unit(s) here also. ;)
 
kwired said:
You forgot to make it a 6 space loadcenter so you can connect the required 120 volt receptacle within 25 feet of the unit(s) here also. ;)
Click to expand...

Well we did at least include a neutral to the sub panel. Some of these small minisplits are 120v.

As for 120v needs, don't they just connect the vacuum pump with an alligator clip cord stub, hot to a phase and neutral to ground? ;)
 
Andy Delle said:
Well we did at least include a neutral to the sub panel. Some of these small minisplits are 120v.

As for 120v needs, don't they just connect the vacuum pump with an alligator clip cord stub, hot to a phase and neutral to ground? ;)
Click to expand...
Probably a reason NEC thinks we are supposed to put a receptacle there.

Thing is on new installs that first time pumping down often there is no receptacle there yet. Then several years later when compressor has failed or unit gets replaced and they need to pump down again - the GFCI has failed by then and they still don't use the receptacle:huh:
 
Status
Not open for further replies.
Top