TM 9-4120-395-14&P
Section III. OPERATION UNDER USUAL CONDITIONS
Para.
Assembly and Preparation for Use ................................................................................................................................ 2-5
Initial Adjustments and Checks ..................................................................................................................................... 2-6
Operating Procedure ..................................................................................................................................................... 2-7
Operation in Fan Mode.................................................................................................................................................. 2-8
Operation in Heat Mode ............................................................................................................................................... 2-9
Operation in Cool Mode .............................................................................................................................................. 2-10
Shutdown (Off)............................................................................................................................................................ 2-11
Preparation for Movement........................................................................................................................................... 2-12
Information Decals ...................................................................................................................................................... 2-13
2-5. ASSEMBLY AND PREPARATION FOR USE. Unit Maintenance should be employed for original unpacking,
installation, and preparation for use.
2-6.
INITIAL ADJUSTMENTS AND CHECKS.
a.
Inspect front and side door assemblies and information decals for loose mounting, obstructions, or shipping
damage. Report any deficiencies to unit maintenance.
b.
Perform the operator preventive maintenance checks and services listed in Table 2-1.
2-7.
OPERATING PROCEDURE.
a.
Daily Checks.
(1)
Check to see that the air conditioner is connected to a 208/230 volt, 1 phase, 60 hertz power source.
(2)
Check that all air inlet and outlet openings are clear.
(3)
Make sure the drain is either open or piped to a satisfactory location with a proper drain system.
(4)
Make sure the thermostat normal switch is set to NORM.
b.
General information. Table 2-2 lists the recommended control settings for the desired mode of operation.
To increase comfort and save energy observe the following guidelines:
NOTE
The fresh air damper should normally be slightly open. This will create a slight over-
pressure, provide replacement oxygen, and reduce room odors. The damper should be
closed during extreme weather conditions and during periods when fast warm up or cool
down is necessary. If adjustment is required contact unit maintenance.
(1)
Limit traffic through doors as much as possible.
(2)
Keep doors and windows tightly closed.
(3)
Do not adjust controls unnecessarily. Properly set the controls and the unit will automatically control
the temperature The wall mounted thermostat operates like a conventional room thermostat and has
a control range of 50 to 90 degrees Fahrenheit (10 to 32 degrees Centigrade).
(4)
Adjust shades, blinds, etc., when heating, to admit sunlight during the day. Close them at night.
Table 2-2. Operator Control Settings
Mode
System Switch
Fan Switch
Temperature Setting Lever
Fan
OFF
ON
Nonoperational
HEAT
AUTO
Desired temperature
Cooling
COOL
AUTO
Desired temperature
2-4
