Checking System For Pressure Leaks; Charging - Suzuki GRAND VITARA XL-7 Owner's Manual

1B-22 AIR CONDITIONING (OPTIONAL)

Charging

CAUTION:
• ALWAYS CHARGE THROUGH LOW PRESSURE-SIDE of A/C system at after the initial charging is
performed from the high-pressure side with the engine stopped.
• NEVER CHARGE TO HIGH PRESSURE-SIDE of A/C system with engine running.
• Do not charge while compressor is hot.
• When installing tap valve to refrigerant container to make a hole there through, carefully follow
directions given by manufacturer.
• A pressure gauge should always be used before and during charging.
• The refrigerant container should be emptied of refrigerant when discarding it.
• The refrigerant container should not be heated up to 40 °C (104 °F) or over.
• Refrigerant container should not be reversed in direction during charging. Reversing in direction
causes liquid refrigerant to enter compressor, causing troubles, such as compression of liquid
refrigerant and the like.
NOTE:
The air conditioning system contains HFC-134a (R-134a).
Described here is a method to charge the air conditioning system with refrigerant from the refrigerant
service container.
When charging refrigerant recovered by using the refrigerant and recycling equipment (when recy-
cling refrigerant), follow the procedure described in the equipment manufacturer's instruction manual.

Checking system for pressure leaks

After completing the evacuation, close manifold gauge high pres-
sure valve (HI) and low-pressure valve (LO) and wait 10 minutes.
Verify that low-pressure gauge reading has not changed.
CAUTION:
If the gauge reading moves closer to "0", there is a leak
somewhere. Inspect the tubing connections, make nec-
essary corrections, and evacuate system once again,
making sure that there are no leaks.