TM 5-2410-241-23-1
0036
A/C PERFORMANCE: TEST CONTINUED
00036
12. From recovery station, record discharge (high side) pressure gauge reading and suction (low side) pressure
gauge reading.
13. Compare discharge (high side) pressure gauge reading and suction (low side) pressure gauge reading to
pressures listed in Table 1, Pressure Range Table to determine if system is functioning correctly at current
ambient temperature.
N OT E
Pressure Range Table is for reference only.
Pressures listed are before clutch disengagement.
During normal A/C system operation at 70F (2 C) ambient temperature, discharge (high
1
side) pressure will be 120 to 190 psi (820 to 1,300 kPa). Suction (low side) pressure will
be 10 to 20 psi (70 kPa to 130 kPa).
Ambient temperature and humidity affect pressures.
If ambient temperature is high, dischage (high side) pressure will be high.
r
In very hot weather, discharge (high side) pessure and suction (low side) pressure will be
r
high.
In cooler weather, discharge (high side) pressure and suction (low side) pressure will
either be normal or low.
Table 1. Pressure Range Table.
0036
Ambient Air Temperature
Discharge (High Side) Pressure
Suction (Low Side) Pressure
F(C)
psi (kPa)
psi (kPa)
70F (21C)
120 to 190 (820 to 1,300)
10 to 20 (70 to 138)
80F (27C)
140 to 210 (950 to 1,450)
10 to 25 (70 to 173)
90F (32C)
170 to 240 (1,175 to 1,650)
15 to 30 (105 to 210)
100F (38C)
190 to 270 (1,300 to 1,850)
15 to 30 (105 to 210)
110F (43C)
210 to 300 (1,450 to 2,075)
15 to 30 (105 to 210)
END OF TASK
END OF WORK PACKAGE
