M/C cable is not a approved method for electrical wiring for a walk in cooler or freezer. You should refer to articial 300.7 of the national electrical code book for more information.

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24 thoughts on “Electrical Wiring for a Walk in Freezer

  1. patwregan says:

    people do not realize how dangerous hacked electrical work is- save money on the install by not hiring an electrician and run the risk of burning your place down- i just dont get it!!!

  2. Matthew L says:

    MC will not pass inspection for a walk in up in my neck of the wood. Because it's susceptible to damage (ie. kitchen staff shoving speed racks and stuffing boxes of pre-made food).

    It's unfortunate but the state I live in allows tradesmen to be licensed for electrical wiring in their respected field, so often times I see work like this too….. Nice video though.

  3. pttanz says:

    Well the way I would've done it would to come out of the Jbox. The conduit would stop about a foot above the box with a cross over connector and into the Jbox with greenfield with an MC connector. I know your not connecting to a direct motor, but we have motors in the machine. But everyone does it differently. Except for that mess. Lol

  4. 2020 Subaru WRX 6spd Manual says:

    Figure out how many wires you need, 4 for a cooler and 6 for a freezer(you need two extra wires for the defrost heaters and defrost termination switch. Which I don't think is necessary if you set the timer correctly.) and use seal-tight, the gray colored "hose" and fittings to make a proper "whip" for the system. Conduit is great too, but I prefer seal-tight.

  5. Sovek says:

    I just got done putting one of these up last night. We used a bell box on the ceiling with a 1/2" EMT "nipple" through the roof, into a j-box, and from the bell box ran SO cord with receptacle, 208 single phase. The old ones were wired the same way.

    Previous store we used seal tite from a bell box into the freezer

  6. Kevin Sullivan says:

    Guess who is ripping off Ductless Heat Pump Jobs from HVAC contractors??? Electricians. Lots of distrust in the trades. Governments not enforcing rules, yet complaining of shortage of tradesmen. Electricians also lose many jobs to other trades or DYI guys, or handymen. Once the ball gets rolling with the govt having a blind eye, then pretty soon the licensed and insured companies that should be doing those particular jobs have a hard time or cant survive at all.

  7. spelunkerd says:

    I'm surprised they would do the connection inside the cooler itself. When ambient temp falls inside the cooler, atmospheric water condenses and corrosion is accelerated, even inside a closed box. Better to make the connection inside an accessible room temperature box outside the cooler. Perhaps there was no option?

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