Performance Test - Honda Civic 2002-2003 Service Manual

Heating and Air Conditioning
Ale
System Tests (cont'd)
Performance Test
AWARNING
• Compressed air mixed with R-134a forms a
combustible vapor.
• The vapor can burn or explode causing serious
injury.
• Never use compressed air to pressure test
R-134a service equipment or vehicle air
conditioning systems.
ACAUTION
• Air conditioning refrigerant or lubricant vapor
can irritate your eyes, nose,
or throat.
Be careful when connecting service equipment.
• Do not breathe refrigerant or vapor.
The performance test will help determine if the air
conditioner system is operating within specifications.
Use only service equipment that is U.L.-listed and is
certified to meet the requirements of SAE J2210 to
remove HFC-134a IR-134al from the air conditioning
system.
If accidental system discharge occurs, ventilate the
work area before resuming service.
R-134a service equipment or vehicle air conditioning
systems should not be pressure tested or leak tested
with compressed air.
Additional health and safety information may be
obtained from the refrigerant and lubricant
manufacturers.
1. Connect a R-134a refrigerant recover/recycling/
charging station to the high-pressure service port
and the low-pressure service port, following the
equipment manufacturer's instructions.
2. Determine the relative humidity and air
temperature.
21-58
3. Open the glove box. Remove both glove box stops,
then let the glove box hang down Isee page 20-631.
4. Insert a thermometer IAI in the center vent, and
place another thermometer (B) near the blower unit.
5. Test conditions:
• Avoid direct sunlight.
Open the hood.
Open the front doors.
Set the temperature control dial on Max Cool, the
mode control dial on Vent, and the recirculation
control switch on Recirculate.
• Turn the
NC
switch on and the fan switch on Max.
Run the engine at 750 rpm.
• No driver or passengers in vehicle.
6. After running the air conditioning for 10 minutes
under the above test conditions, read the delivery
temperature from the thermometer in the center
vent, the intake temperature near the blower unit,
and the high and low system pressure from the AlC
gauges.