Nissan Leaf. Instruction — part 723
HA-14
< PREPARATION >
[WITH HEAT PUMP SYSTEM]
PREPARATION
Oil and Grease
INFOID:0000000010122087
Refrigerant weight scale
For measuring of refrigerant
Fitting size: Thread size
1/2
″
-16 ACME
Vacuum pump
(Including the isolator valve)
Capacity:
• Air displacement: 4 CFM
• Micron rating: 20 microns
• Oil capacity: 482 m (17 Imp fl oz.)
Fitting size: Thread size
• 1/2
″
-16 ACME
Tool name
Description
S-NT200
S-NT203
Name
Application
Note
Refrigerant can (HFC-134a)
Charging refrigerant
—
Compressor oil (ND-OIL11)
Refilling compressor oil
—
COMPONENT PARTS
HA-15
< SYSTEM DESCRIPTION >
[WITH HEAT PUMP SYSTEM]
C
D
E
F
G
H
J
K
L
M
A
B
HA
N
O
P
SYSTEM DESCRIPTION
COMPONENT PARTS
REFRIGERATION SYSTEM
REFRIGERATION SYSTEM : Component Parts Location
INFOID:0000000010122088
COMPONENT PARTS LOCATION
COMPONENT PARTS DESCRIPTION
A.
Built-in heating and cooling unit assembly
AWIIA1658ZZ
No.
Location
DESCRIPTION
1.
3-way valve
Controls refrigerant flow for cooling or heating applications.
2.
2-way valve
Controls refrigerant flow for cooling or heating applications.
3.
Accumulator
Refer to
4.
Condenser
Cools the high-temperature high-pressure refrigerant discharged from the compressor to
change it into a liquid. Refer to
.
5.
Electric compressor
Performs the intake, compression, and discharge of refrigerant, and circulates the refrigerant in
the cooler cycle. Refer to
6.
PTC heater
Provides heated air.
HA-16
< SYSTEM DESCRIPTION >
[WITH HEAT PUMP SYSTEM]
COMPONENT PARTS
HEATING AND COOLING UNIT ASSEMBLY
HEATING AND COOLING UNIT ASSEMBLY : Heating and Cooling Unit
INFOID:0000000010122089
This unit combines the blower unit, heating unit, and cooling unit into
an assembly.
HEATING AND COOLING UNIT ASSEMBLY : Evaporator
INFOID:0000000010122090
A thin laminate pipeless evaporator is used.
HEATING AND COOLING UNIT ASSEMBLY : Inner condenser
INFOID:0000000010122091
An aluminum corrugated fin inner condenser is used.
Condenser
INFOID:0000000010122092
DESCRIPTION
A parallel-flow condenser with a sub-cool cycle is used.
STRUCTURE AND OPERATION
7.
Evaporator
The misty liquid refrigerant causes evaporation and turns into gas by the air blown from blower
motor. Cools the air by vaporization heat at this time. Refer to
8.
Inner Condenser
The refrigerant gas condenses into liquid by the air blown from blower motor. Released heat
warms the air by condensation at this time. Refer to
HA-16, "HEATING AND COOLING UNIT
.
No.
Location
DESCRIPTION
JMIIA2578ZZ
JSIIA0295GB
JMIIA2579ZZ
COMPONENT PARTS
HA-17
< SYSTEM DESCRIPTION >
[WITH HEAT PUMP SYSTEM]
C
D
E
F
G
H
J
K
L
M
A
B
HA
N
O
P
The sub-cool section further cools the liquid refrigerant, increasing the amount of heat that the liquid refriger-
ant can absorb and improving cooling performance.
Electric Compressor
INFOID:0000000010122093
• An electric scroll compressor is used.
• A 3-phase output inverter with IPM
Note
is used.
• The inverter is adopted to IPM
Note
for smaller size and improved
reliability.
NOTE:
IPM (Intelligent Power Module) is the element which delivered
power device equivalent to IGBT and the protection feature of the
circuit to one package.
NOTE:
IGBT (Insulated Gate Bipolar Transistor) is a transistor which is
suitable for high voltages and large currents and which can control
large electrical power using a small gate voltage.
• The structure integrates the inverter, compressor, and motor, allowing compressor to operate at any speed.
AWIIA1659ZZ
JMIIA2581ZZ
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