TM 9-4120-411-14
CAUTION
Check valves can be damaged by high heat. Be sure to wrap the valve body with
wet rags as instructed to avoid damage to internal components when de-brazing.
(11) Purge the refrigerant system per paragraph 5.5 then de-braze the outside coil (15) connections per paragraph
WARNING
Coil fins are sharp. Wear gloves any time you need to handle a coil. Severe cuts
can occur if hands are not protected.
(12) Using two people, carefully lift the outside coil (15) out of the unit.
b. Installation. See figure 5-17.
WARNING
Coil fins are sharp. Wear gloves any time you need to handle a coil. Severe cuts
can occur if hands are not protected.
(1) Using two people, carefully lower the outside coil (15) into the unit.
CAUTION
Check valves can be damaged by high heat. Be sure to wrap the valve body with
wet rags as instructed to avoid damage to internal components when brazing.
(2) Assemble outside coil (15) fittings onto tubing ends. Purge the refrigerant system per paragraph 5 and braze
connections per paragraph 5.6.
(3) Replace filter-drier per paragraph 5.16.
(4) Leak check the connections per paragraph 5.7, then evacuate per paragraph 5.8, and charge per paragraph
(5) Install front rail per paragraph 4.55.
(6) Install rear rail per paragraph 4.54.
(7) Install end rail per paragraph 4.53.
(8) Check that outside coil temperature sensor (13) is installed on coil ad properly secured.
(9) Connect wire leads from outside air temperature sensor (12), outside coil temp erature sensor (13) and
magnetic proximity switch (14) using tags and wiring diagram figure 4-14. Remove tags.
(10) Carefully slide electrical assembly (11) into frame. Be sure no cables or wires are pinched. Secure with eight
captive screws (10).
(11) Place magnetic proximity switch (14) in place and align mounting holes. Secure with two flat washers (9),
screws (8), flat washers (7), new lock washers (6), and nuts (5).
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