TM 9-4120-407-14
(4) Adjust the TEMPERATURE knob midway between WARM and COOL.
(5) Turn the MODE selector rotary switch to COOL position.
NOTES
The motor controller will delay equipment start up for
approximately 30 seconds, then it will take approximately two
seconds to bring the equipment from start to full power.
If the temperature is below the TEMPERATURE potentiometer cut-
Figure 2-15. COOL Setting
(6) If the TEMPERATURE/PRESSURE FAULTS indicator light comes on, immediately rotate the
MODE selector rotary switch to OFF RESET position and check the following.
NOTE
The TEMPERATURE/PRESSURE FAULTS indicator light will come
on if:
The condenser fan motor or either evaporator fan motors overheat.
The refrigerant suction pressure drops below safe operating limits.
The evaporator coil temperature drops below safe operating
limits.
The refrigerant discharge pressure exceeds safe operating limits
which will also cause the HIGH PRESSure CUTOUT switch to
trip.
(a) The fabric cover is closed. Roll up and secure if necessary.
(b) The condenser air discharge deflector door is closed. Open door.
(c) The evaporator air discharge grille is closed. Open louvers.
(d) The evaporator air return grille and or the fresh air damper are closed. Open grille louvers
and fresh air damper then adjust for desired air mix.
(e) The HIGH PRESSure CUTOUT switch is tripped. Push to reset.
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