A/C Discharge Line - Dodge Dakota Sport 2001 Service Manual

AN

A/C DISCHARGE LINE

REMOVAL
Any kinks or sharp bends in the refrigerant plumb-
ing will reduce the capacity of the entire air condi-
tioning system. Kinks and sharp bends reduce the
flow of refrigerant in the system. A good rule for the
flexible hose refrigerant lines is to keep the radius of
all bends at least ten times the diameter of the hose.
In addition, the flexible hose refrigerant lines should
be routed so they are at least 80 millimeters (3
inches) from the exhaust manifold.
High pressures are produced in the refrigerant sys-
tem when the air conditioning compressor is operat-
ing. Extreme care must be exercised to make sure
that each of the refrigerant system connections is
pressure-tight and leak free. It is a good practice to
inspect all flexible hose refrigerant lines at least once
a year to make sure they are in good condition and
properly routed.
WARNING: (Refer to 24 - HEATING & AIR CONDI-
TIONING/PLUMBING - WARNING) AND (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING - CAU-
TION) BEFORE PERFORMING THE FOLLOWING
OPERATION.
(1) Disconnect and isolate the battery negative
cable.
(2) Recover the refrigerant from the refrigerant
system (Refer to 24 - HEATING & AIR CONDITION-
ING/PLUMBING/REFRIGERANT
PROCEDURE).
(3) Unplug the wire harness connector from the a/c
pressure transducer switch.
(4) Remove the fasteners and disconnect the refrig-
erant line couplers at the condenser and the accumu-
lator (Refer to 24
CONDITIONING/PLUMBING - REMOVAL). Install
plugs in, or tape over all of the opened refrigerant
line fittings.
(5) Remove the fastener that secures the refriger-
ant line support bracket near the compressor.
(6) Remove the screw that secures the refrigerant
line manifold to the compressor. Install plugs in, or
tape over all of the opened refrigerant line fittings.
(7) Remove the suction and discharge line assem-
bly from the vehicle.
INSTALLATION
Any kinks or sharp bends in the refrigerant plumb-
ing will reduce the capacity of the entire air condi-
tioning system. Kinks and sharp bends reduce the
flow of refrigerant in the system. A good rule for the
flexible hose refrigerant lines is to keep the radius of
all bends at least ten times the diameter of the hose.
- STANDARD
- HEATING & AIR
In addition, the flexible hose refrigerant lines should
be routed so they are at least 80 millimeters (3
inches) from the exhaust manifold.
High pressures are produced in the refrigerant sys-
tem when the air conditioning compressor is operat-
ing. Extreme care must be exercised to make sure
that each of the refrigerant system connections is
pressure-tight and leak free. It is a good practice to
inspect all flexible hose refrigerant lines at least once
a year to make sure they are in good condition and
properly routed.
WARNING: (Refer to 24 - HEATING & AIR CONDI-
TIONING/PLUMBING - WARNING) AND (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING - CAU-
TION) BEFORE PERFORMING THE FOLLOWING
OPERATION.
(1) Remove the tape or plugs from all of the refrig-
erant line fittings. Install the refrigerant line cou-
plers to the condenser and the accumulator (Refer to
24 - HEATING & AIR CONDITIONING/PLUMBING
- INSTALLATION). Tighten the fasteners to 22 ±3.38
N·m (200 ±30 in. lbs.).
(2) Install the refrigerant line manifold to the com-
pressor. Tighten the mounting screw to 22 N·m (200
in. lbs.).
(3) Install the fastener that secures the refrigerant
line support bracket near the compressor. Tighten
the mounting screw to 6.77 ±1.7 N·m (60 ±15 in.
lbs.).
(4) Plug in the wire harness connector to the pres-
sure transducer switch.
(5) Connect the battery negative cable.
(6) Evacuate the refrigerant system (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING/RE-
FRIGERANT - STANDARD PROCEDURE).
(7) Charge the refrigerant system (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING/RE-
FRIGERANT - STANDARD PROCEDURE).
A/C EVAPORATOR
DESCRIPTION
The evaporator coil is located in the heater-A/C
housing, under the instrument panel. The evaporator
coil is positioned in the heater-A/C housing so that
all air that enters the housing must pass over the
fins of the evaporator before it is distributed through
the system ducts and outlets. However, air passing
over the evaporator coil fins will only be conditioned
when the compressor is engaged and circulating
refrigerant through the evaporator coil tubes.
PLUMBING 24 - 39