Section VII. CONDENSER COIL

TM 5-4110-217-14

VII CONDENSER COIL

Section

dust or other foreign matter from between fins of

6-22.

General.

condenser coil. If compressed air is used, force air

The condenser coil consists of an aluminum

through fins in a direction opposite from normal

housing containing a series of parallel tubes equipped

circulation.

with external radiator type fins. Hot refrigerant gas

(2) Clean external surfaces with an approved

enters the condenser at the top and flows downward

cleaning solvent and dry thoroughly.

through the tubes. Heat from the compressed gas

(3) Inspect condenser coil for bent fins.

radiates outward along the fins and is carried away by

Straighten fins as necessary to permit free

the air flow from a fan. As the refrigerant reaches the

passage of air.

lower tubes of the condenser coil, it becomes cool

(4) Repair leaks in condenser coil tubing by

enough to condense to a liquid. 6-23. Condenser Coil.

brazing or soldering with a compound having a melting

point of more than 100F. Use flux sparingly.

6-23. Condenser Coil. a. Removal (fig. 6-2).

c. Installation.

(1) Refer to paragraph 6-1 and pump down

(1) Attach condenser (45) to unit with screws

the refrigeration system.

(46) and washers (47).

(2) Remove condenser grill (7, fig. 3-24) by

(2) Connect tubing at elbow (45) and nipple

removing screws and washers (7A, 7B, 7C, fig. 3-24).

(35).

(3) Unsweat the condenser (45) at elbow (48)

(3) Tighten clamps (69) and (70).

and nipple (35).

(4) Place condenser grill (7, fig. 3-24) in

(4) Loosen clamps (69) and (70).

position and secure with screws and washers (7A, 7B,

(5) Remove screws (46) and washers (47)

7C, fig. 3-24).

attaching condenser to unit.

(5) Refer to paragraph 6-6 and purge

b. Cleaning and Inspection.

refrigeration system.

(1) Use stiff brush or compressed air to

(6) Refer to paragraph 6-9 and test for leaks.

remove

Section VIII RECEIVER TANK

(3) Remove four nuts (69, fig. 3-24) securing

6-24.

General.

clamps (68, fig. 3-24) around tank (57) and remove tank.

b. Cleaning and Inspection.

The receiver tank is a cylindrical reservoir of welded

(1) Clean external surface with an approved

steel construction. The tank is equipped with inlet and

cleaning solvent and dry thoroughly.

outlet angle valves and a fusible type plug. The receiver

(2) Inspect tank and valves for cracks, dents or

tank valves are standard I two-way valves. The outlet

other damage. Replace if defective.

valve has a dip tube ex-tending below the liquid level of

c. Installation.

the receiver Although the receiver is capable of holding

(1) Place receiver tank (57) inside clamps

the en-tire charge of refrigerant in the system, only a part

(68, fig 3-24) and secure with four nuts (69, fig. 3-24).

of this refrigerant will be in the receiver at any one time

(2) Connect brass flare nuts from lines to inlet

during normal operation. Liquid refrigerant from the

valve (56) and outlet valve (58).

condenser flows through an inlet valve and leaves

(3) Refer to paragraph 6-3 and recharge

through the outlet valve. 6-25. Receiver Tank.

refrigeration system.

6-25. Receiver Tank. a. Removal (fig. 6-2).

(4) Refer to paragraph 6-6 and purge

(1) Release the refrigerant charge.

refrigeration system.

(2) Disconnect brass flare nuts at inlet valve

(5) Refer to paragraph 6-9 and test for leaks.

(56) and outlet valve (58) connections of receiver tank

(57).

Change 3 6-13