|
| |
TM 5-4120-361-14
Section III.
OPERATING UNDER USUAL CONDITIONS
2-5.
General.
a.
The instructions in this section
are published for the information and
guidance of the personnel responsible
for the operation of the air
condi-
tioner.
b.
The operator must know how to
perform every operation of which the
air conditioner is capable.
This sec-
tion gives instructions on starting and
stopping the air conditioner, and de-
tailed operating instructions.
Since
nearly every condition presents a dif-
ferent problem, the operator may have to
vary the given procedure to fit the
condition.
b. Lifting.
2-6.
Unloading Equipment.
The total weight of the air condi-
tioner is 435 pounds (198 kg.).
Use a
hand truck or forklift of at least 500
pounds capacity to unload the unit.
Keep unit upright during the unloading
operation.
2-7.
Unpacking Equipment.
Move the unit as near to the site
of installation as possible.
Remove
crating hardware and metal straps being
careful not to damage the unit with the
tools used for uncrating.
2-8.
Inspecting and Servicing Equip-
ment.
a.
Inspection.
Inspect the entire
air conditioner for signs of damage,
missing or loose hardware, and any de-
fects that may have been incurred during
shipment.
Report all damage and de-
fects to organizational maintenance.
b.
Servicing.
Perform the daily
preventive maintenance services listed
in paragraph 2-4.
Be sure all hardware
is securely in place.
2-9.
Installation.
a.
General.
The air conditioner is
shipped assembled and ready for opera-
tion.
It contains a full charge of re-
frigerant and compressor oil.
Install
the unit on a firm, level surface to al-
low proper condensate drainage.
Place
it so that the control panel and con-
denser and evaporator louvers are acces-
sible to the operator and to maintenance
personnel.
Be sure there are no
obstructions in front of any air intake
or discharge louvers or other openings
that may cause insufficient flow of air
in to or out of the air conditioner. If
the unit is van mounted, report any such
obstructions to organizational mainte-
nance.
Check for broken or de-
formed lifting ring attachment and hard-
ware before lifting air conditioner.
Lift with crane or forklift truck.
Use lifting harness with 4-leg
spreader bar.
Each leg must
be. capable of withstanding a
concentrated load of more than
500 pounds.
If spreader bar
cannot be used, the angle be-
tween the harness legs and the
top of the air conditioner
must be not less than 45-
degrees.
c.
Mounting.
Base mounting hole
dimensions are shown on figure 2-2.
The
resilient mount parts shown in figure
2-3 are shipped with the air condition-
er.
For safe operation connect a
No. 10 AWG (min.) ground wire
between the air conditioner
ground connection and an earth
ground, as shown in figure
2-4.
d.
Connections.
—
(1) Connect air ducts to the unit
as applicable to the site of installa-
tion.
If the inlet grille is removed, a
return air filter should be relocated in
the return air duct at a maintainable
location.
Operation of unit without a
return air filter will cause fouling of
the evaporator fan and evaporator.
(2) Connect a condensate drain line
to carry condensate water away from site
of installation only if the drop of con-
densate is objectionable.
2-6
|
