McQuay Terminal install

[r404a]

McQuay types:

I have to take down a 134a centrifugal to replace the motor terminals on. The new terminals have a torque rating of 20 ft pounds, pipe thread type. I was thinking of using Loctite 554, what do you guys think?


r404a

[MKnyc]

how are the terminals connecting? with an o-ring? describe.

[r404a]

MK
These are actually just pipe plug threads, no aluminum crush washer or oring.
Loctite 554 is about the best thread seal for refrigerant, I just want to see what you guys think.

r404a

[MKnyc]

Yeah I'd say that cherry syrup is a good bet. Regular good ole blue LeakLock works just as well.

[hvacr]

Hello
Just did and O87 I used 554 on the threads and 515 on the O ring I know that sounds odd but it works well.

[r404a]

thanks guys

looking at my breakdown and the terminals I have, thet are just pipefitted.

r404a

[MKnyc]

good ole 515. we got an old timer nicknamed that cuz he used so much when it first came out it got stuck on the IGV's. He still laughs when I call him that.

[freonrick]

I use 554 with no problems. I never had to remove it either after using it.

[captinsano]

hope you ate your wheaties before you pulled the originals,567

[freonrick]

I have had them break off at the motor shell, thats alot of fun to get out then.

[stickerhead]

hope you ate your wheaties before you pulled the originals,567

Done tons of them, 567. Don't need red refdrigerant sealant on the terminals and you don't need 515 on a McQuay. Use compressor oil on the o-rings. This isn't a Trane or Carrier 19D!

[freonrick]

not all of them used o-rings, the ones without needs a sealant

[captinsano]

thanks freonrick