Saab 900 Service Manual page 61

Heating and ventilation system, air conditioning system 854-49
Pressures in the AC system, as from the
1984 models
The fQllowing pressures should be regarded as
guidelines and indicate whether or not the sys-
tem operates at normal values. Note that the test
conditions are not the same as during the perfor-
mance test.
I
Test conditions
Bonnet
Front doors
Engine speed
half-open
open
1500 r/min
Closed
~Max
Closed
Fullyopen
Check that the damper
isfullyclosed
Control settings
The AC system must be filled with the correct
quantity of refrigerant.
Temperature control
Distribution control
ACswitch
Facia outlets
Recirculation damper
Recorded operating conditions - Saab
900 as from the 1984 models
Ambientair
temp. measured
at the front of
the bumper, °C
Pressure measured on the
suction side of the
compressor (marked "SUC"),
bar
Pressure measured on the
discharge side ofthe
compressor (marked "DIS"),
bar
Compo on Compo off
Compo on Compo off
20
25
2.6
2.6
1.3
1.3
9.0
9.5
16.5
17.0
30
35
Compo runs
continuously
Comp.runs
continuously
Working press.
1.4
Working press.
1.6
Compo runs
continuously
Compo runs
continuously
Working press.
17.8
Working press.
19.5
1 •
40
Compo runs Working press.
continuously 1.8
Tolerance:
±
0.2 bar
Compo runs Working press.
continuously 20.7
Tolerance:
±
1 bar
Saab900