ok, most of these are NOT refrigeration based...
but this paragraph is relevant to the Op

With most current standalone condenser dryers, it is necessary to
periodically clean the condenser unit - perhaps once a month or so,
one needs to slide out the condenser module and wash off any
accumulated lint. Thus condensers require a bit more "work" than
vented dryers - although this may entail less actual effort than the
recommended annual ductwork cleaning for vented dryers (which is very
important for both performance and fire safety reasons!).

Mark