Standard compressor 30psi "H" 45psi.
Pretty sure yours is standard as no "H" in details given. It is for higher pressure rating, so doubt used for 134a.
Guessing it only has oil to bearings & no oil injection into rotors due to 134a cool.
If it does have oil injection, it may be checked as oil injection can consume a lot of oil.
Can you give us running pressures & oil & discharge temperatures.
Also what is oil pressure & trip pressure setting.