York Shaft Seals

[chiller rob]

What are you guys doing with yt shaft seals with 123... do you pull the charge or do you hit 0 (-) and let her suck... we have a rule for 123 we pull cause of heath hazards... but process plant needs quick turn around...
even with quick hands working around the coupling guard can be a pain and you face is right in it...
any feedback... thanks

[absrbrtek]

Your going to spend as much timer running unloaded and getting the air out as you would if you did it right.

[acjourneyman]

Pull the charge, if you get hung up pulling the seal you are screwed and it will be too late to pull the charge then.

[Randy S.]

Pull the gas out. I've never heard of anyone changing a shaft seal with the gas in the chiller. Somebody's probably done it, though.

The 0 psi trick is for quickies, like a thermistor, a busted fitting, or maybe swapping the guts in a stuck YT oil reg.

[chiller32]

What are you guys doing with yt shaft seals with 123... do you pull the charge or do you hit 0 (-) and let her suck... we have a rule for 123 we pull cause of heath hazards... but process plant needs quick turn around...
even with quick hands working around the coupling guard can be a pain and you face is right in it...
any feedback... thanks

do me a favor and do it on the fly. just make sure you stick your head inside the D flange and breath deep.

[chiller rob]

thanks guys... will stick to the rules and tell the bean counters to take a hike...