Wire size

[acts238]

I came across a 5 ton Rheem condenser the other day, with a 50 amp min. circuit capacity. It had a 30 amp breaker at the panel. The customer has called the electrician. When they are done., I am going back to resize the wire from the disconnect to the condenser. It is currently running a 10 wire. I'm thinking; at least 8 AWG.

[MM#7]

I came across a 5 ton Rheem condenser the other day, with a 50 amp min. circuit capacity. It had a 30 amp breaker at the panel. The customer has called the electrician. When they are done., I am going back to resize the wire from the disconnect to the condenser. It is currently running a 10 wire. I'm thinking; at least 8 AWG.

why don't you just have the electrician do it, he'll be there correct!

[acts238]

MM#7, my understanding is the electrician only goes to the disconnect, from the breaker panel, and HVAC, goes from the disconnect to the unit; and, since the unit is a 5 ton, and is only, using a 10 AWG wire, I was considering rewiring with at least 8 AWG.

[MM#7]

MM#7, my understanding is the electrician only goes to the disconnect, from the breaker panel, and HVAC, goes from the disconnect to the unit; and, since the unit is a 5 ton, and is only, using a 10 AWG wire, I was considering rewiring with at least 8 AWG.

JUST A SUGGESTION, if the electrician, is wiring up to the disconnect and he is already set up, let him spend the 10 minutes to wire in the cond. just a suggestion!

[ascj]

I came across a 5 ton Rheem condenser the other day, with a 50 amp min. circuit capacity. It had a 30 amp breaker at the panel. The customer has called the electrician. When they are done., I am going back to resize the wire from the disconnect to the condenser. It is currently running a 10 wire. I'm thinking; at least 8 AWG.

My first question would be.....why there is a 5ton condenser on a 30 amp circuit. That opens alot of other questions.

[MM#7]

My first question would be.....why there is a 5ton condenser on a 30 amp circuit. That opens alot of other questions.

a possible DIY

[rusty1217]

If this is a union job, electricians wire all the way, if its not, let the electrician wire it all the way. Or use the same size he runs to the disconnect.

[acts238]

My first question would be.....why there is a 5ton condenser on a 30 amp circuit. That opens alot of other questions.

When I discovered the 30 amp tripped breaker, and checked the nameplate on the 50 amp min. unit. I quickly realized, someone made a mistake.

[MM#7]

When I discovered the 30 amp tripped breaker, and checked the nameplate on the 50 amp min. unit. I quickly realized, someone made a mistake.

what year unit was it and how long ago was it installed?

[hceptj]

I'd either let the electrician do the wiring as mentioned above...or, since your not sure of the correct gauge wire, ask him when he's there...

[tcktech]

Run two 6awg and one 8awg ground. on a 50 amp. cya.

[trouble time]

In Ontario, Canada the Hvac tech can wire from the panel (including installation of the breaker) to the ac condenser unit, provided he has a refrigeration license, follows the code and gets an inspection....

[timebuilder]

I came across a 5 ton Rheem condenser the other day, with a 50 amp min. circuit capacity. It had a 30 amp breaker at the panel. The customer has called the electrician. When they are done., I am going back to resize the wire from the disconnect to the condenser. It is currently running a 10 wire. I'm thinking; at least 8 AWG.

Before you increase the wire size, read NEC article 430. It has specific guidance for conductor sizes when feeding motors. And yes, it applies to residential.