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HVAC
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Mode knob controls the servomotor. When the knob
is turned from Chest/ Chest-Leg/Leg Mode to Leg-
Defrost/ Defrost Mode, the Air Inlet door is moved to
the Fresh Air Mode and Power A/C is selected. On
turning the knob back to Chest/ Chest-Leg/Leg Mode
from Leg Defrost/ Defrost Mode, the last selected
settings are restored (provided that there has been
no user intervention in between).
The Mode knob Rotary ring Total Rotation Span is
270° with 5 detents, each of 67.5° (between detents),
including both the end positions. The Position of the
mode actuator is based on the Knob position of the
Control Panel during the Ignition ON / OFF.
PINOUT
Pin NO.
Rotation from
Face to Def.
Position
Rotation from
Def. to Face Po-
sition
1
Ground (Pot)
Ground (Pot)
2
Feedback Signal
From pot. to
Control Panel
Feedback Signal
From pot. to
Control Panel
3
+Ve (Pot.)
+Ve (Pot.)
4
NC
NC
5
Motor Grd.
Motor +Ve
6
Motor +Ve
Motor Grd.
10. COMPRESSOR
SPECIFICATION
MODEL
SD7V16
MAXIMUM DIS-
PLACEMENT
161.3 cm
3
/ rev
.
MINIMUM DIS-
PLACEMENT
9.7 cm
3
/ rev
.
LUBRICANT
SP10 or Equivalent
OIL QUANTITY
135 cm
3
The Compressor used in the vehicle is variable dis-
placement type.
This compressor has two identical scrolls arranged
at 180º around a offset center; one of them is fixed
(fixed scroll) and the other (orbit scroll) is turned at a
constant attitude, so that the space made between
the scrolls symmetrically around the rotating shaft