Manualshelf

Fault Code Guide

ManualsBrandsFreightliner ManualsOtherBusiness Class M2 Fault Code Guide
151152153154155156157158159160
Temperature/Pressure Specifications for a Vehicle With a Large Cooling Package and a Behr Condenser but No
Auxiliary HVAC Unit
*
Ambient
Air
Temp.
Humidity
(approximate)
Dash Outlet
Temperature
(approximate)
Service Port Pressures
A/C
Compressor
Status
A/C Compressor Status Comments
High Side
psi (kPa)
Low Side
psi (kPa)
70°F
(21°C)
Low 25%
44–53°F (7–
12°C)
73–104
(503–717)
8–50
(55–345)
Cycling
On about 16 seconds; off about 32
seconds
Medium 50%
44–52°F (7–
11°C)
74–112
(510–772)
7–50
(48–345)
Cycling
On about 17 seconds; off about 19
seconds
High 70%
46–54°F (8–
12°C)
70–112
(483–772)
8–50
(55–345)
Cycling
On about 18 seconds; off about 17
seconds
80°F
(27°C)
Low 25%
44–53°F (7–
12°C)
87–127
(600–876)
8–47
(55–324)
Cycling
On about 24 seconds; off about 13
seconds
Medium 50%
45–55°F (7–
13°C)
90–135
(621–931)
10–49
(69–338)
Cycling
On about 40 seconds; off about 10
seconds
High 70%
47–56°F (8–
13°C)
128–134
(883–924)
14–20
(97–138)
On On steady
90°F
(32°C)
Low 25%
46–55°F (8–
13°C)
110–162
(758–1117)
10–48
(69–331)
Cycling
On about 73 seconds; off about 9
seconds
Medium 50%
48–52°F (9–
11°C)
155–160
(1069–1103)
19–20
(131–138)
On On steady
High 70%
55–57°F (13–
14°C)
167–170
(1151–1172)
22–23
(152–159)
On On steady
100°F
(38°C)
Low 25%
53–54°F
(12°C)
192–196
(1324–1351)
22–23
(152–159)
On On steady
Medium 50%
60–62°F (16–
17°C)
201–204
(1386–1407)
26–28
(179–193)
On On steady
High 70%
66–69°F (19–
21°C)
211–214
(1455–1475)
29–30
(200–207)
On On steady
Test conditions:
• engine at 1500 rpm
• engine fan locked on
• normal A/C mode, outside air
• blower speed on high
• cab doors open
• hood open
• parked out of direct sunlight
*
Refer to "Temperature/Pressure Specification Tables" to determine whether the vehicle has a small or large cooling package.
Table 4, Temperature/Pressure Specifications for a Vehicle With a Large Cooling Package and a Behr Condenser
but No Auxiliary HVAC Unit
Cab Heater and Air Conditioner, Valeo
83.00
Specifications
Business Class M2 Workshop Manual, Supplement 15, March 2009 400/5