And DO exercise it!! I wasn't as diligent as I should have been this last winter due to my wifes being so sick. Finally got it running smoothly just a couple days ago and it's a diesel 8KW unit that should withstand long periods of being idle.
Usually I set one heat pump for heat and the other for cool, than after about half hour I switch them around so both get run in both modes.
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Lifetime GS Member, SKP, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '14 CR-V