1. Remove the necessary access panels and discharge system.
2. Remove the capillary coil from the outlet line. (Do not kink the capillary tube.)
3. Uncouple all related tube fittings. (See Special Servicing Procedures, B-7.)
—NOTE—
If this part is not serviceable, it must be replaced with a new part.
EXPANSION VALVE INSTALLATION.
1. Install the expansion valve in the inlet line of the evaporator core by coupling the related fittings. (Seal
all couplings with sealant applied to tube flanges only.) Torque fittings per Chart 2102.
2. Secure the capillary coil to the evaporator outlet line.
3. Evacuate and charge the system. (See Evacuating the System and Charging the System.) Check for
leaks. (See Checking the System for Leaks.)
4. Replace access panels.
EVAPORATOR ASSEMBLY.
The evaporator assembly consists of the evaporator core, receiver-dehydrator, expansion valve, circulating
fan and pressure switch together with necessary housing and plumbing. The housing is fabricated of Cycolac
type material. The condensed moisture is dumped overboard through a hose clamped to a fitting on the bottom
of the evaporator housing.
EVAPORATOR ASSEMBLY REMOVAL.
The evaporator assembly is located behind the cabin rear panel, attached to the mounting panel with 12
screws and washers and a bracket securing the back to the mounting panel.
1. Remove air conditioning filter cover, filter and rear access panels.
—NOTE—
Discharge the system before disassembling. (Refer to
Discharging.)
2. Uncouple the liquid line from the inlet side of the receiver-dehydrator and the suction line from the
evaporator core outlet. (See Special Servicing Procedures, B-7.)
3. Disconnect the related electrical wires.
4. Remove flexible air duct from housing outlet. Remove drain hose from housing.
5. Remove temperature probe from evaporator housing.
6. Remove the screws attaching the support bracket and evaporator housing to the mounting panel.
Remove the assembly through the access hole in the bulkhead.
21-50-38
Page 21-41
December 1, 1978
1G16
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL
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