2003 NISSAN ALMERA N16 Electronic Repair Manual

fuel trunk release steering wheel adjustment fuel tank capacity auxiliary battery location fuel filter

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Page 2945 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual Special Service ToolsNJHA0119
Tool number
Tool nameDescription
KV99106100
Clutch disc wrench
NT232
NT378
Removing center bolt
KV99232340
Clutch disc puller
NT376
Removing clutch disc
KV99106200
Pulley

Page 2946 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual HFC-134a (R-134a) Service Tools and
Equipment
=NJHA0120Never mix HFC-134a refrigerant and/or its specified lubricant with CFC-12 (R-12) refrigerant and/or its lubri-
cant.
Separate and non-interchange

Page 2947 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual Tool number
Tool nameDescription
Service hoses
High side hose
Low side hose
Utility hose
NT201
Hose color:
Low hose: Blue with black stripe
High hose: Red with black stripe
Utility hose: Yellow with b

Page 2948 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual Refrigeration System
REFRIGERATION CYCLENJHA0121Refrigerant FlowNJHA0121S01The refrigerant flows in the standard pattern, that is, through the compressor, the condenser, the liquid tank,
through the e

Refrigeration System
REFRIGERATION CYCLENJHA0121Refrigerant FlowNJHA0121S01The refrigerant flows in the standard pattern, that is, through the compressor, the condenser, the liquid tank,
through the evaporator, and back to the compressor. The refrigerant evaporation through the evaporator coil
is controlled by an externally equalized expansion valve, located insidethe heater & cooling unit.
Freeze ProtectionNJHA0121S02The compressor cycles go on and off to maintain the evaporator temperaturewithin a specified range. When
the evaporator coil temperature falls below a specified point, the thermocontrol amplifier interrupts the com-
pressor operation. When the evaporator coil temperature rises above the specification, the thermo control
amplifier allows compressor operation.
Refrigerant System ProtectionNJHA0121S03Refrigerant Pressure SensorNJHA0121S0303The refrigerant system is protected against excessively high or low pressures by the refrigerant pressure
sensor, located on the liquid tank. If the system pressure rises above, or falls below the specifications, the
refrigerant pressure sensor detects the pressure inside the refrigerantline and sends the voltage signal to the
ECM. ECM makes the A/C relay go OFF and stops the compressor when pressure onthe high pressure side
detected by refrigerant pressure sensor is over about 2,746 kPa (27.5 bar,28 kg/cm
2, 398 psi) or below about
137 kPa (1.37 bar, 1.4 kg/cm2, 20 psi).
Dual-pressure Switch
NJHA0121S0304The refrigerant system is protected against excessively high or low pressures by the dual-pressure switch,
located on the liquid tank. If the pressure falls out of specifications, the switch opens to interrupt compressor
operation.
Pressure Relief Valve
NJHA0121S0302The refrigerant system is also protected by a pressure relief valve, located in the rear head of the compres-
sor. When the pressure of refrigerant in the system increases to an unusuallevel [more than 3,727 kPa (37.3
bar, 38 kg/cm
2, 540 psi)], the release port on the pressure relief valve automatically opens and releases
refrigerant into the atmosphere.
RHA682H
DESCRIPTIONMANUAL
Refrigeration System
HA-12

Page 2949 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual CSV613 Variable Displacement Compressor
GENERAL INFORMATIONNJHA02061. The CSV613 compressor differs from previous units. The vent temperatures of the CSV613 compressor
do not drop too far below 5°C (

Page 2950 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual DESCRIPTION=NJHA0207GeneralNJHA0207S01The variable compressor is basically a swash plate type that changes piston stroke in response to the required
cooling capacity.
The tilt of the swash plate allow

Page 2951 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual Operation=NJHA0207S021. Operation Control ValveNJHA0207S0201Operation control valve is located in the suction port (low-pressure) side, and opens or closes in response to
changes in refrigerant suctio

Page 2952 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual 3. Capacity Control=NJHA0207S0203Refrigerant pressure on suction side is low during high speed driving or when ambient or interior tempera-
ture is low.
The bellows expands when refrigerant pressure o

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