Trane Adaptive Control / Helirotor compressor - oil

[sparkatan]

Hi,

I am converting a Trane chiller from R22 to R422D. I understand the Helical Rotor compressor runs on ISO68 oil. The chiller is going to be operated at -10C. Will ISO68 be ok at this temperature or should I change it to a polyolester based oil i.e. EAL Arctic 32?

Also, the chiller has an Adaptive Control unit on it. Where can I download a manual for this, including the password?

Thanks

[serviceman]

that has the machine control

[paulh]

Sparkatan ,

You will not be able to convert to R422D. The chiller will not operate correctly with R422D and especially not at -10c.

[sparkatan]

Hi Paulh, thanks for that.

The chiller currently has an operating range of +15 to -12C when operating on R22. Is there an alternative to R22 suitable for the helical rotor compressor?

[AlexG]

Use R407C with POE oil. I suppose that -10C is correct for RTAA. Password is ++--++ and +-+-+-
Try to find Users manual on trane.com

[sparkatan]

Anyone have or know where I can get the R22/R404a retrofit parts list for this chiller?

[CV_Geardrive]

Hi,
Please check your email or you can contact local TRANE sales office for selection.
Regards,
CV

[paulh]

Hi Sparkatan,
The best option is to contact your Trane office. Give them the serial no and they will do a selection. The selection will be for R404a. Normally the EXV's may have to be changed out with the EXV modules as well as a good few oil changes to minimise the mineral oil content.

[GREEK_REF]

contact Trane office and they will propose you a conversion kit
e-mail me to send you the manual

christos@firstclima.gr

[AlexG]

I am not sure you have to replace parts... Only oil.