Oil Charge; Figure 6-9 Compressor Mounting Angles - Carrier Transport Air Conditioning Installation Procedures Manual

The side to side mounting angle of the A-6 com-
pressor must remain ±15° from the horizontal
(See Figure 6-9).
Access to the air conditioning service ports will vary. If
access cannot be made at the compressor, in-line ser-
vice ports must be installed as close to the compressor
as possible.
Special care must be used when routing the suction and
discharge hoses through the engine compartment.
These hoses must be kept away from sharp objects and
hot areas of the engine. Damage to the refrigerant
hoses and leaks may occur. The hot areas can also re-
duce capacity by adding heat into the refrigerant inside
the hoses. This added heat must then be rejected by the
condensing coil. Since each coil has a limited ability to
reject heat, that kind of extra heat simply means less
cooling inside the bus where it is needed.
A- -6 COMPRESSOR
FRONT TO REAR ANGLE
Note

Figure 6-9 Compressor Mounting Angles

6.4.4 Oil Charge

Each compressor comes with a standard charge of oil
inside. This quantity of oil is enough to supply the com-
pressor lubrication when installed into an already "oil
wet" system. New systems require an extra quantity of
oil be added to "wet" all interior surfaces of the system.
Refer to Section 8, Charging Procedures, for the
approximate refrigerant and oil amounts.
Verify that the oil added to the air condition-
ing system is the same oil that is in the com-
pressor. The mixing of incompatible oils
will damage your system.
Refer to Section 7 for evacuation, Section 9 for leak
checking, and Section 8 for charging procedures. Refer
to Section 4 for hose routing.
90°
10°
10°
10°
10°
6--5
CAUTION
45°
D S
15° 15°
SIDE TO SIDE ANGLE
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