Rtac loading problem-new compressor trane

[michael26]

Did you confirm these readings by a manual gauge?. What worries me is that u said u added 30# and unit didn't cut off on higgins pressure. And 3riple corendrier , why don't you try locking out the circuit that is presently work good and run the other circuit by itself , the water temp is @ 42 degf so it will not need 2 compressors to run. At full load to come down lower

I did lock it out to run the circuit with the problem. The water temp never got down to 42 it stayed in the 50s.

[michael26]

ok r123 let me try this. Sorry I was just trying to get some info because I don't have anything on this chiller. thanks in advance.

[michael26]

I will connect with techview in the morning and check and see what the eev position is. Could the extra gallon of oil be enough to coat the tubes in the evaporator and cause the high approach temp? If so will I be able to bring it back running it fully loaded for an hour or will I need to drain it off the bottom of evap? Also is there a tap in tech view that will let me load it manually, it has been awhile?

[R123]

ok r123 let me try this. Sorry I was just trying to get some info because I don't have anything on this chiller. thanks in advance.

Also, you should enable private messaging in your settings.......

[michael26]

Ok I think I just did. If not please let me know.

[Healey Nut]

I will connect with techview in the morning and check and see what the eev position is. Could the extra gallon of oil be enough to coat the tubes in the evaporator and cause the high approach temp? If so will I be able to bring it back running it fully loaded for an hour or will I need to drain it off the bottom of evap? Also is there a tap in tech view that will let me load it manually, it has been awhile?

Yes the one extra gallon of oil is screwing the system up .Guess you thought my previous post was just BS . Oil charges on RTACs are critical . You need to run it FULLY UNLOADED to recover the oil . Running unloaded raises your DSH and increases oil separation . Correct your oil level then you can worry about EXV position etc . Until your oil level is correct your p$$#%%G in the wind

[Southern Mech]

I can't count how many RTAC's I have come to where company X has somehow added and extra gallon or 2 of oil. There is even a service bulletin out about some factory shipped units with to much oil.

I just have to ask if you pulled 3 gals out and nameplate states 2, why, why would you put 3 back in? why?.

[R123]

Ok I think I just did. If not please let me know.

You didn't.

[socotech]

Did you weigh in nameplate refrigerant charge?

[Dallas Duster]

You didn't.

If he's a regular member he has no PM access.

[michael26]

I looked everywhere and cant find private messenger. My email is there.

[michael26]

Yes the one extra gallon of oil is screwing the system up .Guess you thought my previous post was just BS . Oil charges on RTACs are critical . You need to run it FULLY UNLOADED to recover the oil . Running unloaded raises your DSH and increases oil separation . Correct your oil level then you can worry about EXV position etc . Until your oil level is correct your p$$#%%G in the wind

No I didn't think it was bs, I am used to the old rtaas that have a larger oil separators and over on oil wasn't a big deal. I just figured since it had that much in it from the factory for this long is wasn't a big deal. But maybe that had something to do with the compressor failing? Any info I get here is appreciated. Is there a tab to manually load in techview or will I have to jump out the load relay and un-wire the unload relay?

[FixItRight]

Just remove the extra oil your added over the nameplate. To much oil can kill the compressor.