Drain Tubes

TM 5-4120-274-15

3-55. Condenser Coil (fig. 1-3).

(2) Pullout junction box and control box,

a. General. The condenser coil is mounted on

(3) Unscrew clamps holding drain tubes to

the bottom rear of the casing, directly beneath the

unit and remove drain tubes, refer to figure 3-6.

condenser fan. The coil must be removed from

b. Inspection and Servicing.

the air conditioner for repair or replacement. The

(1) Inspect tubes for obstructions, kinks or

coil is made from copper tube and aluminum fin

holes.

and is of fin-tube configuration.

(2) Clean tubes with low pressure com-

b. Testing. Refer to paragraph 3-45b and test

pressed.

with halide torch for refrigerant leaks.

c. Installation.

c. Inspection and Cleaning.

(1) Install drain tubes and tighten clamps.

(1) Inspect coil for bent fins cracks or

(2) Install junction box and control box, re-

breaks. Solder any cracks. Straighten bent fins

with coil comb or thin nose pliers.

(3) Install front access, panel to para-

(2) Clean coil with low pressure compressed

graph 3-18.

air.

3-57. Air Filter

3-56. Drain Tubes

a. Removal. Refer to figure 3-3 and remove air

a. Removal

filter.

(1) Remove front access panel, refer to para.

b. lnstallation. Refer to figure 3-3 and install

air filter.