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TM5-4120-387-14
(2) Check that capill
switch if capillary line is
ary line is not kinked, mashed or broken. Replace
damaged.
NOTE
Check that refrigerant line is properly charged. (See
para 5-12.)
(3) Press and release the reset button to be sure that switch is not
tripped.
(4) Use a continuity tester or multimeter to check for continuity between
terminals 1 and 2 on switch.
If there is continuity, the switch is properly
closed.
If there is no continuity, switch must be replaced.
c.
Removal
(1) Discharge the refrigerant per paragraph 5-6.
(2) Remove evaporator fan. (See para 4-58.)
(3) Remove condenser fan. (See para 4-59.)
(4) Remove evaporator and condenser fan motor. (See para 4-60.)
(5) Tag and disconnect wire leads from switch.
(6) Using two wrenches, loosen and disconnect switch capillary tubing flare
nut from pressure tap.
(7) Remove pressure switch and capillary with flare nut from unit.
d.
Installation
(1) Insert capillary with flare nut through hole in back of rear panel.
(2) See tags and wiring diagram (see fig. 4-7) and connect wire leads.
Remove tags.
(3) Using two wrenches, connect flare nut to pressure tap.
(4) Using screwdriver, secure pressure switch to enclosure with two screws
and lockwashers.
(5) Install enclosure and switches in unit.
(6) Aline the enclosure and switch nameplate with unit mounting holes.
(7) Using screwdriver, secure enclosure and nameplate with four screws.
(8) Carefully coil excess capillary tubing and tape in place to eliminate
vibration.
5-30
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