Honda Civic Service Manual page 829

Heating and Air Conditioning
A/C System Tests (cont'd)
1 .
Performance Test
Air conditioning refrigerant or lubricant vapor
can irritate your eyes, nose, or throar.
Be carefulwhen 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
cenified to meet the requirements of SAE J2210 to
r e m o v e H F C - 1 3 4 a ( R - 1 3 4 a l f r o m t h e a i r c o n d i t i o n i n g
system.
lf accidental system discharge occurs, ventilate the
work area before resuming service
R - 1 3 4 a s e r v i c e e q u i p m e n t o r v e h i c l e a i r c o n d i t i o n i n g
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.
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.
D e t e r m i n e t h e r e l a t i v e h u m i d i t y a n d a i r
Iemperaru re.
' Compressed air mixed with R-134a forms a
combustible vapor.
. T h e v a p o r c a n b u r n o r e x p l o d e c a u s i n g s e r i o u s
I n j u r y .
. Never use compressed air to pressure test
R - 1 3 4 a s e r v i c e e q u i p m e n t o r v e h i c l e a i r
c o n d i t i o n i n g s y s t e m s .
21-58
4 .
Open the glove box. Remove both glove box stops,
then let the glove box hang down (see page 20-63).
Insert a thermometer (A) in the center vent, and
place another thermometer {B) near the blower unit.
Test conditions:
. Avoid direct sunlight.
. Open the hood.
. Open the front doors.
. Sel the temperature control dial on Max Cool, the
mode control dial on Vent, and the recirculation
control switch on Recirculate.
. Turn the A,/C switch on and the fan switch on Max.
. R u n t h e e n g i n e a t 7 5 0 r p m .
. N o d r i v e r o r p a s s e n g e r s i n v e h i c l e .
A f t e r r u n n i n g t h e a i r c o n d i t i o n i n g f o r I 0 m i n u t e s
under the above test conditjons, 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 Ay'C
g a u g e s .