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Figure 5-8. Expansion valve, removal and installation.
(1) Refer to figure 3-4 and remove the top
access panel.
(2) Discharge the refrigerant system (para
6-3).
(3) Refer to figure 5-8 and remove the evap.
orator expansion valve.
c. Adjustment. Refer to figures 5-9 and 5–10
and adjust the evaporator expansion valve.
d.. Installation.
(1) Install the expansion valve in reverse
order of removal. Refer to paragraph 6–3 for sol-
dering procedures.
5-12
(2) Pressure test, evacuate, and recharge
the refrigerant system (para 6–5 ).
5-18. Compressor Bypass Expansion Valve
a. General The compressor bypass expansion
valve functions when the air conditioner is in the
bypass cycle of operation. The valve modulates a
small amount of liquid refrigerant into the suc-
tion line tubing. This valve has an external su-
perheat adjustment,
factory adjusted at
(±1.5)°F. Access
to the
expansion
valve
through the top access cover.
b. Removal.
15
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