LG Mini-Split HVAC Unit

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augie47

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Location
Tennessee
Occupation
State Electrical Inspector (Retired)
Inspected a job with a new LG Mini=split AC Unit. The contractor had used SJO cord to connect the interior and exterior unit.
The cord was ty-rapped to the insulated condenser lines, run thru the attic & walls and terminated at each unit.
I rejected it based on 400.8 (1)(2)(4)(5).
The E/C advised it was installed per manufacturer's instructions which state:

3. Use outdoor and waterproof connection cable rated more than 300V for the connection between
indoor and outdoor unit. (For example, Type SJO-WA)

Of course, the instructions also stated to comply with ALL CODES which would include 400.8.

My post is in regard to these instructions. I failed to check the listing on the LG unit but think they might be CSA listed and manufactured in Canada. For any who might be familiar with Canadian Codes, would such an install (Using cord) be acceptable under Canadian Code ?
?
 

Dennis Alwon

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Staff member
Location
Chapel Hill, NC
Occupation
Retired Electrical Contractor
I have had the same situation. I ran a conduit for the HVAC guys so they could deal with it that way. I think that setup is compliant where the sjo goes from the back side of the inside unit directly outside to the outdoor unit. Those units always cause issue.

I have no idea about the CEC.
 
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