Nissan Juke F15. Manual — part 832
PREPARATION
HA-11
< PREPARATION >
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(J-39183)
Manifold gauge set (with hoses
and couplers)
Identification:
• The gauge face indicates HFC-134a (R-
134a).
Fitting size: Thread size
• 1/2
″
-16 ACME
Service hoses
• High-pressure side hose
(J-39501-72)
• Low-pressure side hose
(J-39502-72)
• Utility hose
(J-39476-72)
Hose color:
• Low-pressure side hose: Blue with black
stripe
• High-pressure side hose: Red with black
stripe
• Utility hose: Yellow with black stripe or
green with black stripe
Hose fitting to gauge:
• 1/2
″
-16 ACME
Service couplers
• High-pressure side coupler
(J-39500-20)
• Low-pressure side coupler
(J-39500-24)
Hose fitting to service hose:
M14 x 1.5 fitting is optional or permanently
attached.
(J-39650)
Refrigerant weight scale
For measuring of refrigerant
Fitting size: Thread size
1/2
″
-16 ACME
(J-39649)
Vacuum pump
(Including the isolator valve)
Capacity:
• Air displacement: 4 CFM
• Micron rating: 20 microns
• Oil capacity: 482 g (17 oz)
Fitting size: Thread size
• 1/2
″
-16 ACME
Tool number
(Kent-Moore No.)
Tool name
Description
RJIA0196E
S-NT201
S-NT202
S-NT200
S-NT203
HA-12
< PREPARATION >
PREPARATION
Commercial Service Tool
INFOID:0000000012197102
Sealant or/and Lubricant
INFOID:0000000012197103
HFC-134a (R-134a) Service Tool and Equipment
• Never mix HFC-134a (R-134a) refrigerant and/or its specified lubricant with CFC-12 (R-12) refrigerant and/
or its lubricant.
• Separate and non-interchangeable service equipment must be used for handling each type of refrigerant/
lubricant.
• Refrigerant container fittings, service hose fittings and service equipment fittings (equipment which handles
refrigerant and/or lubricant) are different between CFC-12 (R-12) and HFC-134a (R-134a). This is to avoid
mixed use of the refrigerants/lubricant.
• Never use adapters that convert one size fitting to another: refrigerant/lubricant contamination occurs and
compressor malfunction may result.
Tool name
Description
Refrigerant identifier equipment
Checking for refrigerant purity and
system contamination
RJIA0197E
Tool name
Description
HFC-134a (R-134a) refrigerant
Container color: Light blue
Container marking: HFC-134a (R-
134a)
Fitting size: Thread size
• Large container 1/2
″
-16 ACME
A/C system Oil Type R (DH-PR)
Type: Polyalkylene glycol oil (PAG),
type R (DH-PR)
Application:
HFC-134a (R-134a) swash plate com-
pressors
Capacity: 40 m (1.4 US fl oz, 1.4 Imp
fl oz)
S-NT196
JMIIA1759ZZ
COMPONENT PARTS
HA-13
< SYSTEM DESCRIPTION >
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SYSTEM DESCRIPTION
COMPONENT PARTS
Component Parts Location
INFOID:0000000012197104
Component Description
INFOID:0000000012197105
JMIIA1124ZZ
1.
Expansion valve
2.
Condenser
3.
Compressor
4.
Liquid tank
5.
Refrigerant pressure sensor
6.
Evaporator
A.
Built-in A/C unit assembly
Component
Description
Evaporator
The mist form liquid refrigerant transforms to gas by evaporation by the air conveyed from blower
motor. The air is cooled by the heat by evaporation.
Condenser
Cools refrigerant discharged from compressor, and transforms it to liquid refrigerant.
Compressor
Intakes, compresses, and discharges refrigerant, to circulate refrigerant inside the refrigerant cycle.
Refrigerant pressure sensor
HAC-10, "Refrigerant Pressure Sensor"
(Automatic air conditioning) or
(Manual air conditioning).
Liquid tank
Eliminates foreign matter in refrigerant, and stores temporarily liquid refrigerant.
Expansion valve
Transforms high-pressure liquid refrigerant to mist form low-pressure liquid refrigerant by drawing
function.
HA-14
< SYSTEM DESCRIPTION >
SYSTEM
SYSTEM
System Diagram
INFOID:0000000012197106
System Description
INFOID:0000000012197107
REFRIGERANT CYCLE
Refrigerant Flow
The refrigerant from the compressor, flows the condenser with liquid tank, the evaporator, and returns to the
compressor. The refrigerant evaporation in the evaporator is controlled by an expansion valve.
Freeze Protection
When evaporator fin temperature is low, compressor stops so that freeze of evaporator can be prevented.
• Refer to
. (Automatic air conditioning)
• Refer to
. (Manual air conditioning)
REFRIGERANT SYSTEM PROTECTION
Refrigerant Pressure Sensor
• The refrigerant system is protected against excessively high- or low-pressures by the refrigerant pressure
sensor, installed at the upper liquid tank. The refrigerant pressure sensor detects the pressure inside the
refrigerant line and sends the voltage signal to the ECM if the system pressure rises above, or falls below
the specifications.
• ECM turns the A/C relay to OFF and stops the compressor when the high-pressure side detected by refriger-
ant pressure sensor is following conditions;
- Approximately 3,120 kPa (31.8 kg/cm
2
, 452 psi) or more (Engine speed is less than 1,500 rpm.)
- Approximately 2,740 kPa (27.9 kg/cm
2
, 397 psi) or more (Engine speed is 1,500 rpm or more.)
- Approximately 140 kPa (1.4 kg/cm
2
, 17 psi) or less
Pressure Relief Valve
The refrigerant system is also protected by a pressure relief valve, located in the rear head of the compressor.
The release port on the pressure relief valve automatically opens and releases refrigerant into the atmosphere
when the pressure of refrigerant in the system increases to an unusual level [more than 3,800 kPa (38.8 kg/
cm
2
, 551 psi)].
JPIIA1366GB
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