Nissan Leaf. Manual - part 749
HA-118
< REMOVAL AND INSTALLATION >
[WITHOUT HEAT PUMP SYSTEM]
HEATING AND COOLING UNIT ASSEMBLY
1. Use the refrigerant recovery equipment (for HFC134a) and recover the refrigerant. Refer to
2. Remove bolt (A), and then disconnect low-pressure pipe (1) and
high-pressure pipe (2) from expansion valve.
CAUTION:
To prevent the inclusion of foreign matter, use a cap or vinyl
tape to seal off the connection ports of the pipes and expan-
sion valve from the atmosphere.
3. Remove bolts (A), and then remove expansion valve (1).
CAUTION:
To prevent the inclusion of foreign matter, use a cap or vinyl
tape to seal off the connection ports of the expansion valve
and evaporator from the atmosphere.
INSTALLATION
Note the following items, and then install in the reverse order of removal.
CAUTION:
• To prevent degradation in insulation performance, use special electric compressor oil as the com-
pressor oil.
• In order to prevent conventional PAG oil from becoming mixed in, never reuse recovered compres-
sor oil and instead always use new oil. The use of oil including the conventional PAG oil may
degrade the performance of insulation.
• To prevent performance degradation, never use a fluorescent agent in order to detect refrigerant
leakage. Also be careful that a fluorescent agent never enter the oil.
• To prevent leakage of refrigerant, replace the O-ring with a new one. Apply a coat of compressor oil
to the O-ring prior to installation.
• Perform a check for refrigerant leakage when charging with refrigerant. Refer to
.
JMIIA2673ZZ
JPIIA1792ZZ