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TM 5-4120-377-14
Under normal operating conditions, before starting the air conditioner in any mode, make
sure that the fabric condenser cover on the back of the condenser section is rolled up and
secured and that all screens and guards are in place and unobstructed.
EXCEPTION:
Under extreme cold climatic conditions, such as blowing snow, or freezing rain which
might enter and damage condenser section, the unit may be operated in the VENTILATE,
LO HEAT, or HI HEAT modes with the fabric cover rolled down and snapped in place.
DO NOT OPERATE IN THE COOL MODE WITH THE FABRIC COVER
ROLLED DOWN.
(3) Check that all air inlet and outlet openings are clear.
TS4120-377-14/2-4
Figure 2-4. Air Openings and Drains
(4) Check that drains are either open or piped to a satisfactory location with a proper drain system.
(5) Table 2-2 lists the recommended control settings for the desired mode of operation. Minor adjustments
may be made to get the desired mixture of recirculated and fresh air and the air flow patterns of conditioned air.
2-10
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