1998 SUZUKI GRAND VITARA charge

YH4
GRAND
VITARA
AIR CONDITIONING (OPTIONAL) 1B-31

Tighten flared nuts to specified torque.
Tightening Torque (Flared Nut Used for)
8 mm pipe: 13 N
.m (1.3 kg-m, 9.5 lb-ft)
14.5 mm pipe: 23 N
.m (2.3 kg-m, 16.6 lb-ft)
16 mm pipe: 33 N
.m (3.3 kg-m, 23.8 lb-ft)

Route drain hose so that drained water does not make any contact to vehicle components.
HANDLING REFRIGERANT HFC-134a (R-134a)

When handling refrigerant, always wear goggles to protect your eyes.

Avoid you direct contact to liquid refrigerant.

Do not heat refrigerant container higher than 40C (104F).

Do not discharge refrigerant into atmosphere.

Do not allow liquid refrigerant to touch bright metals. Refrigerant combined with moisture is corrosive and will
tarnish surfaces of bright metals including chrome.

After recovering refrigerant from system, the amount of compressor oil removed must be measured and the same
amount added to the system.
REFRIGERANT RECOVERY
When discharging refrigerant out of A / C system, always recover it by using refrigerant recovery and recycling
equipment. Discharging refrigerant HFC-134a (R-134a) into atmosphere would cause adverse effect to environ-
ments.
NOTE:
When handling recovery and recycling equipment, be sure to follow the instruction manual for the equip-
ment.
REFRIGERANT CHARGE
Charge a proper amount of refrigerant to A / C system according to charging procedure described in recovery, evac-
uation and charging.
CAUTION:
Do not perform an additional refrigerant charging to A / C system. This cause it to overcharge.

YH4
GRAND
VITARA
2. Bolt
For CAMI production vehicle
For IWATA production vehicle
AIR CONDITIONING (OPTIONAL) 1B-33
A / C CONDENSER ASSEMBLY
INSPECTION
Check
a) condenser fins for blockage
b) condenser fittings for leakage
c) condenser fins for damage
Clogged condenser fins should be washed with water, and should
be dried with compressed air.
CAUTION:
Be careful not to damage condenser fins. If condenser fin is
bent, straighten it by using a screwdriver or pair of pliers. If
any leakage is found from fitting or tube, repair or replace
condenser.
REMOVAL
1) Disconnect negative (±) cable at battery.
2) Recover refrigerant by using recovery and recycling equipment.
Be sure to follow the instruction manual for the equipment.
The amount of compressor oil removed must be measured and
the same amount added to the system.
3) Remove front bumper assembly and remove lower stay (1) if
equipped (Refer to Section 9 ªBODY SERVICEº).
4) Disconnect compressor discharge hose (1) from condenser in-
let fittings.
CAUTION:
As soon as above hose and pipe are disconnected, cap
opened fittings so that moisture and dust do not enter
condenser.

YH4
GRAND
VITARA
3
1B-34 AIR CONDITIONING (OPTIONAL)
5) Disconnect coupler from dual pressure switch (1).
6) Disconnect condenser outlet pipe (3).
7) Disconnect condenser cooling fan motor coupler (2).
8) Remove condenser with fan.
NOTE:
Be careful not to damage fins of condenser and radiator.
9) Remove A / C condenser cooling fan assembly from condenser.
INSTALLATION
Reverse removal sequence to install condenser, noting following
point.
1) When replacing condenser, add 20 to 30 cc of refrigerating oil
from compressor suction-side.
2) Evacuate and charge system according to previously-described
procedure.

YH4
GRAND
VITARA
AIR CONDITIONING (OPTIONAL) 1B-41
INSPECTION
1) Check evaporator fins for blockage. If found clogged, use com-
pressed air to clean the fins.
CAUTION:
Do not use water for cleaning of evaporator.
Be careful not to damage evaporator fins. If evaporator
fin is bent, straighten it by using a screwdriver or pair of
pliers. If any leakage is found from fitting or tube, repair
or replace evaporator.
2) Check inlet and outlet fittings for crack or scratch. Repair them
as required.
REASSEMBLY and INSTALLATION
1) Reverse removal and disassembly sequence to install cooling
unit, noting the following points.

Install uniformly the evaporator packing to dash panel hole for
expansion valve.

Adjust fresh air control cable, refer to ªHEATER CONTROL
LEVER ASSEMBLYº in Section 1A.
2) Enable air bag system. Refer to ªEnabling Air Bag Systemº in
Section 10B.
3) Evacuate and charge system. Refer to ªEVACUATINGº and
ªCHARGINGº in this section.
NOTE:
When the thermistor removed, it should be reinstalled in
original position.
If cooling unit or evaporator is replaced, pour 25 cc of refrig-
erating oil to compressor suction-side.

YH4
GRAND
VITARA
3. Pipe clamp
1B-42 AIR CONDITIONING (OPTIONAL)
EXPANSION VALVE
INSPECTION
Refer to ªTroubleshooting Procedure Using Manifold Gauge Setº in
this section.
REMOVAL
1) Recover refrigerant by using recovery and recycling equipment.
Be sure to follow the instruction manual for the equipment. The
amount of compressor oil removed must be measured and the
same amount added to the system.
2) Remove front grill.
3) Disconnect suction pipe (1), and liquid pipe (2) from evaporator
(Cooling unit).
CAUTION:
As soon as above hose and pipe are disconnected, cap
opened fittings so that moisture and dust may not enter
cooling unit.
4) Disconnect suction pipe, and liquid pipe from suction hose (1)
and condenser outlet pipe (2).
5) Remove pipe clamp then remove suction pipe and liquid pipe.
6) Remove expansion valve (1).
INSTALLATION
1) Reverse removal sequence to install expansion valve.
2) Evacuate and charge system. Refer to ªEVACUATINGº and
ªCHARGINGº in this section.

YH4
GRAND
VITARA
1. Evaporator thermistorTemperature
Resistance ( )


AIR CONDITIONING (OPTIONAL) 1B-43
A / C EVAPORATOR THERMISTOR
(EVAPORATOR TEMPERATURE SENSOR)
A thermistor is a temperature sensor to sense the temperature of
air discharged from evaporator. The electrical characteristic is
shown in the figure.
When temperature is lower than preset temperature, amplifier
makes magnet clutch turn off to prevent evaporator from frosting.
INSPECTION
Check resistance between A / C evaporator thermistor (1) termi-
nals.
If check results are as not specified, replace thermistor.
Sensor Temperature
Resistance
0
C, 32
F7.0 ± 7.7 k

25
C, 77
F2.1 ± 2.4 k

REMOVAL
Refer to ªCOOLING UNIT (EVAPORATOR)º in this section.
INSTALLATION
1) Reverse removal sequence to install thermistor.
2) Enable air bag system. Refer to ªENABLING AIR BAG SYS-
TEMº in Section 10B.
3) Evacuate and charge system. Refer to ªEVACUATINGº and
ªCHARGINGº in this section.

YH4
GRAND
VITARA
1B-44 AIR CONDITIONING (OPTIONAL)
REFRIGERANT PIPES AND HOSES
INSPECTION
1) Use a leak tester to check hoses and pipes for any gas leakage.
2) Check each hose or pipe clamp for tightness.
Retighten or replace loose clamp as required, if any.
REMOVAL
1) Recover refrigerant by using recovery and recycling equipment.
Be sure to follow the instruction manual for the equipment.
The amount of compressor oil removed must be measured and
the same amount must be added to the system when reinstal-
ling.
2) Replace defective hose or pipe.
CAUTION:
As soon as the above hose or pipe is disconnected, cap
its opened fitting to prevent moisture and dust from en-
tering.
INSTALLATION
1) Reverse removal procedure to install refrigerant line.
2) Evacuate and charge system. Refer to ªEVACUATINGº and
ªCHARGINGº in this section.
INSPECTION OF IDLE SPEED WITH A / C ON
For G16 and J20 engines model, refer to Section 6E1.
For H25 engine model, refer to Section 6E2.

YH4
GRAND
VITARA
Pressure ABCD SWITCH
ON
(Continuity)
OFF
(No continuity)
AIR CONDITIONING (OPTIONAL) 1B-47
DUAL PRESSURE SWITCH
INSPECTION
1) Check dual pressure switch (1) on liquid pipe for continuity at
normal temperature (approx. 25
C (77
F)) when A / C system
has a proper charge of refrigerant and when A / C system (com-
pressor) is under operation. In each of these cases, switch
should show proper continuity.
2) Using a manifold gauge set, check switch for operation at speci-
fied pressure as shown, refer to ªPERFORMANCE DIAGNO-
SISº in this section.
Switch ON : above ªCº and below ªDº
Switch OFF : below ªAº or above ªBº
ªAº: Approx. 200 kPa (2.0 kg / cm
2)
ªBº: Approx. 3200 kPa (32 kg / cm
2)
ªCº: Approx. 230 kPa (2.3 kg / cm
2)
ªDº: Approx. 2800 kPa (28 kg / cm
2)
Tightening torque:
Dual pressure switch: 10 N
.m (1.0 kg-m, 7.5 lb-ft)