What definition file to use for Altherma 3 H MT ( ETBH (I/U) and EPRA (O/U) units)

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Guys what definition file do you recommend for using with Altherma 3 H MT ( ETBH and EPRA units)?
maybe something form: ALTHERMA(TOP-GRADE), ALTHERMA(TOP-GRADE-SMALL_E)TEST and ALTHERMA(TOP-GRADE-LARGE_E)TEST, or should i use the DEFAULT one?

Thx

[TRIROG]

Update:
Used ALTHERMA(TOP-GRADE). seems to work fine, however i added definition for voltage
{0x21,4,101,2,1,"Voltage (N-phase) (V)"},

Would be awesome if we had dedicated discussions for units or something?