AIR
CONDITIONING
Page
TT9
Start engine and 'run' at
1200
r.p.m. Set controls for maximum cold, with fan at fast speed
Symptom Cause Remedy
a) Continuous bubbles System low on Check with leok detector.
present in sight glass. charge.
Correct
leak,
if
any, and
fill
system to correct char
g
e.
b) No bubbles. Sight System
is
either Feel high and low pressure pipes
glass clear. fully char
g
ed or of compressor. High pressure
empty.
pipe should be warm, low
pressuie pipe should be cold.
c) No appreciable
temperature
differential noted
h
at compressor.
d) Temperature
differential noted
at compressor.
System empty, or
Switch 'off' engine. Re
-
charge
nearly empty.
system with refrigerant, and
check with leok detector.
Even though a
Check by disconnecting the
differential is compressor clutch connection
noted, there exists
(at upper front) while observing
a possibility of
the sight glass.
overcharge. An
overcharge filled
system will result
in poor
cooling.
Refrigerant in sight System over
-
Verify with performance checks.
glass remains clear for charged.
more than
45
secs.,
La4
before foaming and
settling away from
glass.
Refrigerant foams
and
settles away from sight
glass in less than
45
secs.
System correctly Continue
checklng
out
system
charged.
uaing checks
as
previously
given.
ESPRIT
Issue
12/78
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