(57) The control circuit for environments at different temperatures, in particularly domestic
refrigerators, is of the type comprising a freezer compartment (3) and a refrigeration
compartment (4), an evaporator unit (5) positioned in said freezer compartment, a
fan (6) associated with said evaporator unit, a compressor unit (7) operating said
evaporator unit, a condenser (8), a delivery duct (10) from said fan for air taken
from said evaporator unit in order to feed it into said refrigeration compartment,
and a thermostat (12) disposed in said freezer compartment to control said fan and
said compressor, and is essentially characterised by comprising in said refrigeration
compartment a further thermostat (13) for controlling said fan (6) alone.
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