Carrier 38CJR018-723 - Operation Description; Outline of Air Conditioner Control

– 31 −
FILE NO. SVM-05010
(3) The indoor heat exchanger restricts revolving
speed of the fan motor to prevent a cold draft. The
upper limit of the revolving speed is shown in
Fig. 7-2-8 and Table 7-2-1.
NOTES :
*1: The fan stops for 2 minutes after thermostat-OFF.
*2: A is 24°C when the preset temperature is 24°C or
more and A is the preset temperature when it is
under 24°C.
*3: SUL means Super Ultra Low.
*4: Calculated from difference in motor speed
between SUL and HIGH.
Fig. 7-2-8 Cold draft preventing control
*5 and *6:
Table 7-2-1
Fan *5 *6
speed Starting period Stabilized period
AUTO • Up until 12 minutes
passed after starting
the unit
• From 12 to 25 minutes
passed after starting
the unit and room
temperature is 3°C
lower than preset
temperature
Manual • Room temperature
(L – H) < Preset temperature
–4°C
7-2-5. Automatic operation
([MODE] button on the remote control is set
to the automatic operation.)
(1) One of 3 operations (Cooling, Fan only or Heating)
is selected according to difference between the
preset temperature and the room temperature at
which the automatic operation has started, as
shown in Fig. 7-2-9. The Fan only operation
continues until the room temperature reaches a
level at which another mode is selected.
(2) Temporary Auto
When the TEMPORARY button on the indoor unit
is pushed, the preset temperature is fixed at 24°C
and the indoor unit is controlled as shown in
Fig. 7-2-9.
Fig. 7-2-9
• From 12 to 25 minutes
passed after starting
the unit and room
temperature is
between preset
temperature and 3°C
lower than preset
temperature
• 25 minutes or more
passed after starting
the unit
• Room temperature
Preset temperature
–3.5°C
A+4 A+4
A-8 A-8
46
45
34
33
33 21
32 20
*2
*6 *5
Manual
(One of
5 speed)
L-H
(Up to
setting
speed)
AUTO
*4
SUL*
3
SUL*1
Stop
(Room temp.) − (Preset temp.)
°C
+4
0
-1
The louver moves to the position same
as Hi POWER operation.
Cooling operation
Heating operation
Cooling operation
Fan only operation
42HNR024-713
42HNR018-713
42CJR024-713, 42TAR024X-723
42CJR018-713, 42TAR018-723