380SL (107.045) V8-3.8L (116.960) (1982)
Monovalve (11), Recirculating Pump (30)
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The electronic system continues to operate while driving and the monovalve (11) remains closed. Blower is not operating.
Function Selection "d" (cooling system off)
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EC (ECONOMY = refrigerant compressor is off), system operates with fresh air only.
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In heating mode, tempered air will flow out of legroom and side nozzles, as well as leak air from defroster nozzles. In such a case, the windshield
will be provided with just enough air to remain free of fog during normal weather conditions.
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In venting mode, air is routed to air inlet in center of instrument panel and to lateral vents only. The minimum in-car temperature depends on
outside temperature and on solar radiation.
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At low outside temperatures the air supply and the blower remain switched off until the engine coolant has been heated to approx. 33 °C. The
blower operates in stages 3 to 5 at "AUTOM".
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This function selection is recommended when no cooling of fresh air is required (to save fuel).
Function Selection "c" (normal adjustment)
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Function selection "c" corresponds to function selection "d", but with cooling.
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The refrigerant compressor of the air conditioning system is in switched-on condition at outside temperatures above + 2 °C.
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If the vehicle in-car temperature is higher by approx. 4 °C than the preselected temperature on temperature dial, the blower will start immediately.
At "AUTOM" the blower operates in stages 2 to 5.
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In heating mode, tempered air will flow out of legroom, center and side nozzles, as well as leak air from defroster nozzles. Simultaneously, the
tempered air is guided to the doors.
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In cooling mode, cooled air will come out of center and side nozzles only. The mode change is automatic; overlapping is possible, that is, legroom
and center nozzles can be open at the same time.
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The refrigerant compressor is added at outside temperatures above + 2°C, the evaporator temperature is held to approx. 0 00. If the system moves
to full "cooling", the main air flaps will automatically switch to recirculating air.
Function Selection "b" (top and bottom)
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The blower starts after approx. 10 seconds, also below 33°C coolant temperature. In position "AUTOM" in stages 3 to 5.
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The refrigerant compressor is in switched-on condition at outside temperatures above + 2°C.
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In heating and cooling mode, air is routed to windshield, to center and side nozzles, as well as to legroom and doors.
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The interior of the vehicle is widely free of draft - the legroom is cooled more intensively. This function serves the purpose of removing fog, if
any, on glass during damp, cold weather conditions.
Function Selection "a" (defrosting)
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With the ignition switched on, the blower will start immediately and operate in 6th blower stage only.