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PREPARATION FOR MOVEMENT - TM-9-4120-428-140037
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TM-9-4120-428-14 Air Conditioner Horizontal Compact 9000 BTU/HR 208 Volt Three Phase 400 Hertz Model No. F9000H-4SPFI Manual
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OPERATION IN EXTREME HEAT - TM-9-4120-428-140040
TM 9-4120-428-14
OPERATOR'S MAINTENANCE
AIR CONDITIONER, HORIZONTAL, COMPACT
OPERATION UNDER UNUSUAL CONDITIONS
GENERAL
The Keco model F9000H-4SPFI air conditioners are designed for operation in a wide range of climatic conditions. However,
some extreme conditions require special operating and servicing procedures to prevent un-due loading and excessive wear on
the equipment.
CAUTION
Prior to operation ensure that the condenser louver in the rear of the unit is closed when
the outside ambient temperature falls below +50F (+10C).
Before Operation
Before starting operation, be sure canvas cover is rolled up and secured. Clear all ice and snow from openings. Be sure all
dampers are in operating condition.
After Operation
Roll down and snap on canvas cover over condenser intake and outlet.
CAUTION
Do not disturb wiring during cold weather unless absolutely necessary. Cold temperatures
make wiring and insulation brittle and easily broken.
NOTE
The fabric cover must be rolled up when operating in the cooling mode or when the unit
is connected to a NBC filter. The fabric cover may be rolled down and snapped in place
during other modes of operation as appropriate for environmental conditions.
The fresh air damper should be positioned fully closed whenever the fabric cover is rolled
down and secured since outside air cannot be drawn in through the fresh air inlet screen.
Under normal operating conditions, before starting the air conditioner in any mode, make
sure that the fabric cover on the back of the cabinet is rolled up and secured, that the
condenser fan intake screen and fan guard are in place and unobstructed, and that the
evaporator fan intake and discharge grille louvers are fully open. EXCEPTIONS: Under
extreme climatic conditions, such as blowing snow, which might enter the compressor
section, the unit may be operated in the VENT, LOW HEAT or HIGH HEAT mode with
the fabric cover rolled down and snapped in place. When operated in this manner, outside
air cannot be drawn through the fresh air damper, which should be positioned fully
closed. The fabric cover cannot be rolled down if the unit is connected to a NBC filter.
Do not operate in the cool mode with the fabric cover rolled down.
0006 00-1

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