TM 9-4120-407-14
Table 3-2. Unit Preventive Maintenance Checks and Services for Model F36T-MPI - Cont
Location
Procedures
Not Fully Mission Capable
Item To
Item
Interval
if:
Check/Service
No
Operation Checks - f.
Use a paper streamer or
31
Annually
smoke and note amount of air
Cont
being discharged from
conditioned air outlet grille.
g. Open fresh air damper fully.
h . Close conditioned air intake
grille louvers fully.
Again check air flow as in
i.
step f. above. Air flow
should be approximately the
same.
Fully open louvers in
j.
conditioned air intake grille
and fully close fresh air
damper.
NOTE
The potentiometer temperature control has an effective
functional range between 60 F and 90 F (16" C and 32 C).
In extreme conditions when ambient air temperature is
outside this range, operation in either HEAT or COOL
mode will vary from that described.
k. Turn potentiometer
TEMPERATURE control knob
to fully WARM (clockwise)
position and then turn mode
selector switch to HEAT.
After a short delay
(approximately five seconds)
the fan should start. Place
you had in air flow from the
conditioned air outlet grille
and feel for a temperature
rise. Next, turn
potentiometer
TEMPERATURE control knob
to fully COOL
(counterclockwise) position.
Feel that discharge air
temperature drops to ambient
level.
3-47