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Old 03-14-2014, 05:46 PM   #16
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Mini Split AC Hook Up


I hooked up the evaporater to condensor via 14-4 AWG 600-volt mini split cable ( specifically made for this application according to Home Depot).

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Old 03-14-2014, 06:50 PM   #17
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Mini Split AC Hook Up


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I hooked up the evaporater to condensor via 14-4 AWG 600-volt mini split cable ( specifically made for this application according to Home Depot).
Doesn't matter who made the cable, it doesn't meet code, UF cable is the best solution to this, or car flex. Cable isn't allowed to be run through wall cavities... As I previously said, these units are made in other counties where cable is the norm, but in the US, it is a code violation. Also, I'm not giving you a hard time, but was your install inspected? Did you pull a permit?

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Old 03-14-2014, 08:51 PM   #18
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Mini Split AC Hook Up


What, exactly is meant by "cable"? Stickboy, NM cable and UF cable are Chapter 3 wiring methods and work fine but they are called cables. What's non-compliant is some kind of flexible CORD that's not a Chapter 3 method. Skymaga, what is the 14-4 cable like? What does it say on it?
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Old 03-14-2014, 08:54 PM   #19
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Mini Split AC Hook Up


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What, exactly is meant by "cable"? Stickboy, NM cable and UF cable are Chapter 3 wiring methods and work fine but they are called cables. What's non-compliant is some kind of flexible CORD that's not a Chapter 3 method. Skymaga, what is the 14-4 cable like? What does it say on it?
It's a cord, I've seen these a million times, at any rate NM wouldn't fly either because it is run exterior. As a side note, they are installed with this cable all the time, I'm not saying your house will burn down, just that it violates the NEC.

Most times these are not inspected not permits pulled, this is why they are installed wrongly, plus most inspectors in my area are uneducated.

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Old 03-15-2014, 07:22 PM   #20
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Mini Split AC Hook Up


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It's a cord, I've seen these a million times, at any rate NM wouldn't fly either because it is run exterior. As a side note, they are installed with this cable all the time, I'm not saying your house will burn down, just that it violates the NEC.

Most times these are not inspected not permits pulled, this is why they are installed wrongly, plus most inspectors in my area are uneducated.
The cable is 14 guage with 5 different colors. I ran it in a whip from outside into garage and then through the living room wall.

It looks like a standard cable that central AC would use between condenser and air handler and then air handler and thermostat except that it's 14 guage.
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Old 03-15-2014, 07:40 PM   #21
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Still doesn't meet chapter 3 wiring method
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Old 03-16-2014, 11:08 AM   #22
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Still doesn't meet chapter 3 wiring method
Hmmm... so all these central A/Cs that are hooked up this way don't meet the code? I had central air swapped on our rental unit and it pasted inspection without having to rewire the cable that ran from condenser to air handler. Is that different?

Can you describe in detail how I need to rectify this situation to be up to code?

Thanks in advance.
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Old 03-16-2014, 11:11 AM   #23
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Originally Posted by skymaga View Post
Hmmm... so all these central A/Cs that are hooked up this way don't meet the code? I had central air swapped on our rental unit and it pasted inspection without having to rewire the cable that ran from condenser to air handler. Is that different?

Can you describe in detail how I need to rectify this situation to be up to code?

Thanks in advance.
I really wouldn't waste your time, this install is done all the time, this is what happens when a product is brought in from another country, if you really feel the need to change the wiring, I would just use UF type cable.
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Old 03-16-2014, 03:33 PM   #24
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Mini Split AC Hook Up


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As far as the 30amp 120/220V AC Disconnect, it has two Line In and two Load In plus two screws for grounding, currently I'm only using one side of it, with running the Hot wire into Line In and running hot wire from LOAD IN to the condenser. I have the white neutral capped together and taped. I have a 15amp fuse on the pull out.

Is this the correct way to do it?

Can I put another 15amp fuse on the other side and run the white neutral threw LINE IN / LOAD IN? I would prefer for it to be screwed into place instead of being capped/taped.
No , you do not fuse a neutral .

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Old 03-16-2014, 03:43 PM   #25
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Still doesn't meet chapter 3 wiring method
I installed a 12,000 btu mini split A/C - Heat pump this last summer . I used 14/4 plenum cable between the outside & the inside unit . This is low voltage , like thermostat cable installation .

There is nothing in the inside unit but electronics , a tiny fan motor and a servo motor to operate the louvers . Pretty sure , digital communications between the inside & the outside .

Chapter 3 wiring methods are a non issue . The power connects to the outside unit .

Mine is on a 15 amp SP CB & 14/2 W/G Romex . I have a no-fuse pull disconnect on the outside , at the unit .

This is not rocket science . And the wiring is the simplest part of the install .

God bless
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Old 03-16-2014, 03:47 PM   #26
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Originally Posted by WyrTwister View Post
I installed a 12,000 btu mini split A/C - Heat pump this last summer . I used 14/4 plenum cable between the outside & the inside unit . This is low voltage , like thermostat cable installation .

There is nothing in the inside unit but electronics , a tiny fan motor and a servo motor to operate the louvers . Pretty sure , digital communications between the inside & the outside .

Chapter 3 wiring methods are a non issue . The power connects to the outside unit .

Mine is on a 15 amp SP CB & 14/2 W/G Romex . I have a no-fuse pull disconnect on the outside , at the unit .

This is not rocket science . And the wiring is the simplest part of the install .

God bless
Wyr

You are sending 240v to the indoor unit, and a communication conductor, you also need a disconnect at the indoor unit as well.




Typical wiring diagram, as you can see, two disconnects are required... so simple you installed yours incorrectly and non code compliant, sometimes I think this is rocket science for some people.

Last edited by stickboy1375; 03-16-2014 at 03:53 PM.
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Old 03-16-2014, 08:28 PM   #27
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Originally Posted by WyrTwister View Post
I installed a 12,000 btu mini split A/C - Heat pump this last summer . I used 14/4 plenum cable between the outside & the inside unit . This is low voltage , like thermostat cable installation .

There is nothing in the inside unit but electronics , a tiny fan motor and a servo motor to operate the louvers . Pretty sure , digital communications between the inside & the outside .

Chapter 3 wiring methods are a non issue . The power connects to the outside unit .

Mine is on a 15 amp SP CB & 14/2 W/G Romex . I have a no-fuse pull disconnect on the outside , at the unit .

This is not rocket science . And the wiring is the simplest part of the install .

God bless
Wyr

Mine is pretty much same, except in those plastic like whips. It's working great, and with 15amp fuses both at disconnect and at fuse box, I feel pretty safe. I also have 12 smoke / heat detectors throughout, including garage, some are hooked up to fire monitoring.

I was in a house fire at a rental few years back, so I'm a little paranoid. :-)


Thanks for everyone that has contributed to this post.
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Old 03-16-2014, 08:30 PM   #28
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You are sending 240v to the indoor unit, and a communication conductor, you also need a disconnect at the indoor unit as well.




Typical wiring diagram, as you can see, two disconnects are required... so simple you installed yours incorrectly and non code compliant, sometimes I think this is rocket science for some people.
How would he send 240v to the indoor unit? Mine 12BTU runs on 120v.
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Old 03-16-2014, 08:38 PM   #29
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How would he send 240v to the indoor unit? Mine 12BTU runs on 120v.
I've never seen a 120v unit, but i'm sure they exist.
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Old 03-17-2014, 01:34 AM   #30
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Mine is 120 VAC . To the condenser unit .

And the control cable for mine is low voltage .

http://s719.photobucket.com/user/Wyr...tml?sort=3&o=2

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