EVAPORATOR COIL.-Continued - TM-5-4120-383-140213

TM5-4120-383-14

5-20.

EVAPORATOR

COIL.-Continued

(5) Discharge and purge the refrigerant system per paragraphs

5-11 and 5-12.

(6) Unwrap insulation on joints to be debrazed.

(7) Debraze tube connections at elbow and expansion valve

(para 5-13). Take care that expansion valve is not damaged during

debrazing operations.

(8) Remove top two flat head screws that attach coil to

housing.

Remove side two flat head screws and two each screws,

lock washers, and flat washers that attach the mist eliminator

holder and coil to the housing.

When handling coils wear gloves to avoid cuts and

reduce fin damage on the coil.

(9) Slip evaporator coil and mist eliminator holder up and

out of unit.

Replace.

If coil is defective replace it.

Installation.

When handling coils wear gloves to avoid cuts and

reduce fin damage on the coil.

(1) Carefully position evaporator coil and mist eliminator

holder.

(2) Secure mist eliminator holder and evaporator coil to

housing with four flat head screws. Secure evaporator coil to

housing with two each screws, lock washers, and flat washers. The

four holes in the mist eliminator holder match the bottom four

holes in the coil.

(3) Align tubing connections to elbow and expansion valve.

Braze joints in accordance with paragraph 5-13. Take care that

expansion valve is protected during brazing operation.

(4) Replace dehydrator. (See para 5-30.)

(5) Leak test coil, dehydrator, newly brazed joints, and

joints in the area of newly brazed joints per paragraph 5-14.

5-47