Figure 21-14. Expansion Valve
EXPANSION VALVE
EXPANSION VALVE REMOVAL (figure 21-14)
—CAUTION—
This part is not serviceable and must be replaced.
The expansion valve is located in evaporator assembly between receiver dehydrator and evaporator inlet.
Capillary coil is attached to evaporator outlet line.
l. Remove necessary access panels and discharge system.
2. Remove capillary coil from outlet line. (Do not kink capillary tube.)
3. Uncouple all related tube fittings. (See Special Servicing Procedures.)
EXPANSION VALVE INSTALLATION
l. Install expansion valve in inlet line of evaporator core by coupling related fittings. (Seal all couplings
with sealant- Apply to tube flanges only.) Tighten fittings per chart 2104.
2. Secure capillary coil to evaporator outlet line.
3. Evacuate and charge system. (See Evacuating the System and Charging the System,) Check for leaks,
(See Checking the System for Leaks.)
4. Replace access panels.
21 - 56 - 00
Page - 21 - 35
Reissued: August 1, 1986
1H1
PIPER AIRCRAFT
PA-28-236
MAINTENANCE MANUAL
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