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TM 9-4120-367-14
TM 07592B-14/1
a.
Oter indications:
1. Evaporator blower is operating.
2. Proper power supply is supplied and property
connected to unit.
d.
High voltage in air conditioner can
kill you.
NOTE
This unit can operate in temperatures
as low as -50°F (-45.5 °C).
shelter heat loss, and amount of heat
generated by equipment in the
shelter, heat output LOW HEAT
mode may or may not heat shelter to
a comfortable level.
b. Check air movement in evaporator section.
1. Apply power.
2. Set Mode Selector switch to LOW HEAT.
3. Turn temperature control to maximum WARMER
position.
4. Feel air ducts for air movement in and out of air
Is air moving into return filter and out discharge open-
c.
Compare discharge air temperature to return air temper-
ature.
1. Turn Mode Selector switch to LOW HEAT and tem-
perature control to maximum WARMER.
2. After operating for 5 minutes, measure return air
temperature and discharge air temperature.
Is discharge air temperature at least 10°F (5.5°C) above
return air temperature?
Check reason for low airflow.
1. Turn Mode Selector switch to OFF.
2. Remove return air filter, dean and replace (para-
graph 5.20).
3. Remove any obstruction to airflow.
4. Check mist eliminates (paragraph 5.21).
Is heating action effective?
Air conditioner is operational.
Go to
Go to
Step g.
Step e.
4-37
4.8 LITTLE OR NO HEATING IN LOW HEAT MODE.
However, depending on shelter size,
conditioner.
ing?
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