TM 1-1510-224-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
(d)
CABIN AIR MODE SELECT switch -
AUTO.
(e)
CABIN
AIR
TEMP
CONTROL
rheostat - Rotate to full INCR
position. Observe an increase in
cabin temperature.
(f)
CABIN AIR TEMP control rheostat -
Rotate
fully
counterclockwise.
Observe
a
decrease
in
cabin
temperature.
NOTE
Air conditioning will come on if cabin temperature is
above 60 to 65o F.
Ensure that the temperature control rheostat is set
to the mid position (approximately 75o F cabin
temperature).
*23.
Air conditioning cold operation - Check
as follows:
(a)
Verify that the AC COLD OPN
annunciator light is illuminated only
when the FAT is below 45o F.
(b)
CABIN AIR MODE SELECT switch -
AC COLD OPN. Check that air
conditioner turns on in 8 to 12
seconds and the A/C COLD OPN
annunciator extinguishes.
(c)
Verify that air conditioner operation
is the same as the AUTO mode
except that the air conditioner
operates continuously above 61%
N1.
2-63
