Nissan Quest E52. Instruction — part 708
LUBRICANT
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Lubricant Adjusting Procedure for Compressor Replacement
INFOID:0000000009651571
1.
Drain lubricant from removed compressor and measure lubricant amount.
1.
Drain lubricant from high-pressure port (A) and low-pres-
sure port (B) while rotating magnet clutch.
2.
Measure total amount of lubricant that is drained from
removed compressor.
2.
Drain lubricant from a new compressor that is calculated accord-
ing to the following conditions.
CAUTION:
If lubricant amount that is drained from removed compressor is less than 60 m (2.0 US fl oz, 2.1
Imp fl oz), perform calculation by setting “D” as 40 m (1.4 US fl oz, 1.4 Imp fl oz).
Conditions
Lubricant amount to be added to A/C system
m
(US fl oz, Imp fl oz)
Replace evaporator
Front A/C unit
75 (2.5, 2.6)
Rear A/C unit
40 (1.4, 1.4)
Replace condenser
35 (1.2, 1.2)
Replace liquid tank
10 (0.3, 0.4)
Refrigerant leakage is detected
Large amount leakage
30 (1.0, 1.1)
Small amount leakage
—
Lubricant amount that is recycled together with refrigerant during recycle operation
α
JMIIA1144ZZ
Amount to be drained (A)
[m (US fl oz, Imp fl oz)] = F
−
(D + S + R +
α
)
F
: Lubricant amount that a new compressor con-
tains [250 (8.5, 8.8)]
D
: Lubricant amount that is drained from removed
compressor
S
: Lubricant amount that remains inside of removed
compressor
[30 (1.0, 1.1)]
R
: Lubricant amount to be added according to com-
ponents that are removed except compressor
α
: Lubricant amount that is recycled together with
refrigerant during recycle operation
Conditions
Lubricant amount to be added to A/C system
m
(US fl oz, Imp fl oz)
Replace evaporator
Front
75 (2.5, 2.6)
Rear
40 (1.4, 1.4)
Replace condenser
35 (1.2, 1.2)
Replace liquid tank
10 (0.3, 0.4)
JPIIA1455GB
HA-24
< BASIC INSPECTION >
LUBRICANT
Example: Lubricant amount to be drained from a new compressor when replacing compressor and liquid
tank. [m (US fl oz, Imp fl oz)] [D = 60 (2.0, 2.1),
α
= 5 (0.2, 0.2)]
250 (8.5, 8.8)
−
[60 (2.0, 2.1) + 30 (1.0, 1.1) + 10 (0.3, 0.4) + 5 (0.2, 0.2)] = 145 (5.0, 5.1)
3.
Install compressor and check the operation.
PERFORMANCE TEST
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PERFORMANCE TEST
Inspection
INFOID:0000000009651572
INSPECTION PROCEDURE
1.
Connect recovery/recycling/recharging equipment (for HFC-134a) or manifold gauge.
2.
Start the engine, and set to the following condition.
Test condition
3.
Maintain test condition until A/C system becomes stable. (Approximately 10 minutes)
4.
Check that test results of “recirculating-to-discharge air temperature” and “ambient air temperature-to-
operating pressure” are within the specified value.
5.
When test results are within the specified value, inspection is complete.
If any of test result is out of the specified value, perform diagnosis by gauge pressure. Refer to
.
RECIRCULATING-TO-DISCHARGE AIR TEMPERATURE TABLE
FRONT
REAR
Surrounding condition
Indoors or in the shade (in a well-ventilated place)
Vehicle condition
Door
Closed
Door glass
Full open
Hood
Open
Engine speed
Idle speed
A/C condition (front/rear)
Temperature control switch or dial
Full cold
A/C switch
ON
Air outlet
VENT (ventilation)
Intake door position
Recirculation
Fan (blower) speed
Maximum speed set
Inside air (Recirculating air) at blower assembly inlet
Discharge air temperature from center ventilator
°
C (
°
F)
Relative humidity
%
Air temperature
°
C (
°
F)
50 – 60
20 (68)
6.9 - 8.9 (44 - 48)
25 (77)
10.8 - 13.3 (51 - 56)
30 (86)
14.9 - 17.9 (58 - 64)
35 (95)
20.3 - 23.8 (69 - 75)
60 – 70
20 (68)
8.9 - 10.9 (48 - 52)
25 (77)
13.3 - 15.8 (55 - 60)
30 (86)
17.9 - 20.9 (64 - 70)
35 (95)
23.8 - 27.4 (75 - 81)
Inside air (Recirculating air) at blower assembly inlet
Discharge air temperature from rear ventilator grille A RH*
°
C (
°
F)
Relative humidity
%
Air temperature
°
C (
°
F)
50 – 60
20 (68)
9.4 - 11.4 (49 - 53)
25 (77)
13.5 - 15.9 (56 - 61)
30 (86)
17.5 - 20.5 (63 - 69)
35 (95)
21.2 - 24.7 (70 - 76)
HA-26
< BASIC INSPECTION >
PERFORMANCE TEST
*: Measuring point of temperature is 5 mm (1.99 in) from air outlet end of rear ventilator grille A RH (passenger
room side).
AMBIENT AIR TEMPERATURE-TO-OPERATING PRESSURE TABLE
60 – 70
20 (68)
11.4 - 13.4 (53 - 56)
25 (77)
15.9 - 18.5 (61 - 65)
30 (86)
20.5 - 23.6 (69 - 74)
35 (95)
24.7 - 28.2 (76 - 83)
Inside air (Recirculating air) at blower assembly inlet
Discharge air temperature from rear ventilator grille A RH*
°
C (
°
F)
Relative humidity
%
Air temperature
°
C (
°
F)
Fresh air
High-pressure (Discharge side)
kPa (kg/cm
2
, psi)
Low-pressure (Suction side)
kPa (kg/cm
2
, psi)
Relative humidity
%
Air temperature
°
C (
°
F)
50 – 70
25 (77)
930 - 1,130
(9.5 - 11.5, 134.9 - 163.9)
240 - 300
(2.4 - 3.1, 34.8 - 43.5)
30 (86)
1,113 - 1,361
(11.3 - 13.9, 161.3 - 197.3)
288 - 351
(2.9 - 3.6, 41.8 - 51.0)
35 (95)
1,363 - 1,669
(13.9 - 17.0, 197.6 - 242.0)
343 - 424
(3.5 - 4.3, 49.7 - 61.5)
40 (104)
1,830 - 2,230
(18.7 - 22.7, 265.4 - 323.4)
410 - 500
(4.2 - 5.1, 59.5 - 72.5)
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