Dodge Viper SRT-10 (ZB). Manual - part 267

(5) Lubricate new rubber O-ring seals with clean

refrigerant oil and install them on the suction and
discharge line fittings. Use only the specified O-rings
as they are made of a special material for the R-134a
system. Use only refrigerant oil of the type recom-
mended for the A/C compressor in the vehicle.

(6) Connect the suction and discharge lines to the

A/C compressor.

(7) Install the bolts that secure the suction and

discharge lines to the A/C compressor. Tighten the
bolts to 25 N·m (17 ft. lbs.).

(8) Connect the wire harness connector to the com-

pressor clutch coil connector.

(9) Install the serpentine drive belt (Refer to 7 -

COOLING/ACCESSORY

DRIVE/BELTS-DRIVE

INSTALLATION).

(10) Reconnect the negative battery cable.
(11) Evacuate the refrigerant system (Refer to 24 -

HEATING & AIR CONDITIONING/PLUMBING -
STANDARD PROCEDURE - REFRIGERANT SYS-
TEM EVACUATE).

(12) Charge the refrigerant system (Refer to 24 -

HEATING & AIR CONDITIONING/PLUMBING -
STANDARD PROCEDURE - REFRIGERANT SYS-
TEM CHARGE).

A/C CONDENSER

DESCRIPTION

The A/C condenser is located in the front of the

engine compartment behind the front fascia. The A/C
condenser is a heat exchanger that allows the high-
pressure refrigerant gas being discharged by the A/C
compressor to give up its heat to the air passing over
the condenser fins, which causes the refrigerant to
cool and change to a liquid state.

The A/C condenser is equipped with integral

mounting provisions and tapping blocks for the
refrigerant line connections.

OPERATION

When air passes through the fins of the A/C condenser,

the high-pressure refrigerant gas within the A/C con-
denser gives up its heat. The refrigerant then condenses
as it leaves the A/C condenser and becomes a high-pres-
sure liquid. The volume of air flowing over the condenser
fins is critical to the proper cooling performance of the
A/C system. Therefore, it is important that there are no
objects placed in front of the radiator grille openings at
the front of the vehicle or foreign material on the con-
denser fins that might obstruct proper air flow. Also, any
factory-installed air seals or shrouds must be properly
reinstalled following radiator or A/C condenser service.

The A/C condenser cannot be repaired and, if

faulty or damaged, it must be replaced.

REMOVAL

WARNING: Refer to the applicable warnings and
cautions for this system before performing the fol-
lowing operation (Refer to 24 - HEATING & AIR
CONDITIONING/PLUMBING - WARNINGS) and (Refer
to 24 - HEATING & AIR CONDITIONING/PLUMBING -
CAUTIONS). Failure to follow the warnings and cau-
tions could result in possible personal injury or
death.

(1) Disconnect and isolate the negative battery

cable.

(2) Recover the refrigerant from the refrigerant

system (Refer to 24 - HEATING & AIR CONDITION-
ING/PLUMBING

STANDARD

PROCEDURE

REFRIGERANT SYSTEM RECOVERY).

(3) Remove the air intake ducts from the front of

the air cleaner assembly (Refer to 9 - ENGINE/AIR
INTAKE SYSTEM - REMOVAL).

(4) Remove the bolt that secures the liquid line to

the A/C condenser (Fig. 6).

(5) Disconnect the liquid line from the A/C con-

denser and remove and discard the O-ring seal.

(6) Install plugs in, or tape over the liquid line fit-

ting and condenser outlet port.

Fig. 6 A/C Condenser - Liquid Line

1 - UPPER MOUNTING BOLT
2 - A/C CONDENSER
3 - LOWER MOUNTING BOLT
4 - RIGHT FRAME RAIL
5 - RADIATOR
6 - BOLT
7 - SUCTION LINE

24 - 42

PLUMBING

A/C COMPRESSOR (Continued)

(7) Remove the bolt that secures the discharge line

to the A/C condenser (Fig. 7)

(8) Disconnect the discharge line from the A/C con-

denser and remove and discard the O-ring seal.

(9) Install plugs in, or tape over the discharge line

fitting and condenser inlet port.

(10) Remove the bolts that secure the A/C con-

denser to the radiator.

NOTE: The A/C condenser can not be removed
without first loosening the upper radiator isolators
and positioning the radiator rearward.

(11) Loosen the upper radiator isolators and posi-

tion the radiator rearward.

NOTE: Care should be taken to not damage the
condenser cooling fins or refrigerant tubes when
removing the A/C condenser from the engine com-
partment.

(12) Carefully lift the A/C condenser up and

remove it from the engine compartment.

INSTALLATION

NOTE: If the A/C condenser is being replaced, add
30 milliliters (1 fluid ounce) of refrigerant oil to the
refrigerant system. Use only refrigerant oil of the
type recommended for the A/C compressor in the
vehicle.

(1) Carefully position the A/C condenser into the

engine compartment.

(2) Install the bolts that secure the A/C condenser

to the radiator. Tighten the bolts to 5 N·m (45 in.
lbs.).

(3) Reposition the radiator and tighten the upper

isolators securely.

(4) Remove the tape or plugs from the A/C dis-

charge and liquid line fittings and both condenser
ports.

(5) Lubricate new rubber O-ring seals with clean

refrigerant oil and install them on the A/C discharge
and liquid line fittings. Use only the specified O-rings
as they are made of a special material for the R-134a
system. Use only refrigerant oil of the type recom-
mended for the A/C compressor in the vehicle.

(6) Connect the A/C discharge and liquid lines to

the A/C condenser.

(7) Install the bolt that secures the A/C discharge

and liquid lines to the A/C condenser. Tighten the
bolts to 18 N·m (13 ft. lbs.).

(8) Install the air intake ducts to the front of the

air cleaner assembly (Refer to 9 - ENGINE/AIR
INTAKE SYSTEM - INSTALLATION).

(9) Evacuate the refrigerant system (Refer to 24 -

HEATING & AIR CONDITIONING/PLUMBING -
STANDARD PROCEDURE - REFRIGERANT SYS-
TEM EVACUATE).

(10) Charge the refrigerant system (Refer to 24 -

HEATING & AIR CONDITIONING/PLUMBING -
STANDARD PROCEDURE - REFRIGERANT SYS-
TEM CHARGE).

(11) Reconnect the negative battery cable.

Fig. 7 A/C Condenser - Discharge Line

1 - RADIATOR
2 - MOUNTING BRACKET
3 - COOLING FAN
4 - A/C DISCHARGE LINE
5 - BOLT
6 - UPPER MOUNTING BOLT
7 - A/C CONDENSER
8 - LOWER MOUNTING BOLT

PLUMBING

24 - 43

A/C CONDENSER (Continued)

A/C DISCHARGE LINE

DESCRIPTION

The A/C discharge line is the refrigerant line that

goes from the A/C compressor to the A/C condenser.
The A/C discharge line has a fitting for the A/C pres-
sure transducer. The A/C discharge line has no ser-
viceable parts except the rubber O-ring seals.

CAUTION: Use only O-ring seals specified for the
vehicle. Failure to use correct O-ring seal will cause
the refrigerant system connection to leak.

The O-ring seals used on the connections are made

from a special type of rubber not affected by R-134a
refrigerant. The O-ring seals must be replaced when-
ever the A/C discharge line is removed and installed.

If the A/C discharge line is found to be leaking or

is damaged, it must be replaced.

REMOVAL

(1) Disconnect and isolate the negative battery

cable.

(2) Recover the refrigerant from the refrigerant

system (Refer to 24 - HEATING & AIR CONDITION-
ING/PLUMBING

STANDARD

PROCEDURE

REFRIGERANT SYSTEM RECOVERY).

(3) Remove the air intake ducts from the front of

the air cleaner assembly (Refer to 9 - ENGINE/AIR
INTAKE SYSTEM - REMOVAL).

(4) Disconnect the wire harness connector from the

A/C pressure transducer (Fig. 8).

(5) Remove the bolt that secures the A/C discharge

line bracket to the left frame rail.

(6) Remove the bolt that secures the A/C discharge

line to the A/C condenser (Fig. 9).

(7) Disconnect the A/C discharge line from the A/C

condenser and remove and discard the O-ring seal.

(8) Install plugs in, or tape over the opened dis-

charge line fitting and condenser port.

(9) Remove the bolt that secures the A/C discharge

line to the A/C compressor (Fig. 10).

(10) Disconnect the A/C discharge line from the

A/C compressor and remove and discard the O-ring
seal.

(11) Install plugs in, or tape over the opened dis-

charge line fitting and the compressor port.

(12) If necessary, remove the A/C pressure trans-

ducer from the A/C discharge line.

INSTALLATION

(1) If removed, install the A/C pressure transducer

onto the discharge line using a new O-ring seal.
Tighten the transducer securely.

(2) Position the A/C discharge line into the engine

compartment.

(3) Remove the tape or plugs from the discharge

line fitting and the compressor port.

(4) Lubricate a new rubber O-ring seal with clean

refrigerant oil and install it onto the discharge line
fitting. Use only the specified O-ring as it is made of
a special material for the R-134a system. Use only
refrigerant oil of the type recommended for the A/C
compressor in the vehicle.

(5) Connect the A/C discharge line to the A/C com-

pressor.

(6) Install the bolt that secures the A/C discharge

line to the A/C compressor. Tighten the bolt to 25
N·m (18 ft. lbs.).

(7) Remove the tape or plugs from the discharge

line fitting and condenser port.

(8) Lubricate a new rubber O-ring seal with clean

refrigerant oil and install it on the discharge line fit-

Fig. 8 A/C Discharge Line

1 - DISCHARGE LINE
2 - SCREW
3 - A/C PRESSURE TRANSDUCER
4 - RADIATOR/FAN/CONDENSER MODULE
5 - WIRE HARNESS CONNECTOR
6 - LH FRAME RAIL

24 - 44

PLUMBING

ting. Use only the specified O-ring as it is made of a
special material for the R-134a system. Use only
refrigerant oil of the type recommended for the A/C
compressor in the vehicle.

(9) Connect the A/C discharge line to the A/C con-

denser.

(10) Install the bolt that secures the A/C discharge

line to the A/C condenser. Tighten the bolt to 18 N·m
(13 ft. lbs.).

(11) Install the bolt that secures the discharge line

bracket to the left frame rail. Tighten the bolt
securely.

(12) Connect the wire harness connector to the A/C

pressure transducer.

(13) Install the air intake ducts to the front of the

air cleaner assembly (Refer to 9 - ENGINE/AIR
INTAKE SYSTEM - INSTALLATION).

(14) Reconnect the negative battery cable.
(15) Evacuate the refrigerant system (Refer to 24 -

HEATING & AIR CONDITIONING/PLUMBING -
STANDARD PROCEDURE - REFRIGERANT SYS-
TEM EVACUATE).

(16) Charge the refrigerant system (Refer to 24 -

HEATING & AIR CONDITIONING/PLUMBING -
STANDARD PROCEDURE - REFRIGERANT SYS-
TEM CHARGE).

A/C EVAPORATOR

DESCRIPTION

The A/C evaporator for the heating-A/C system is

located within the HVAC housing, behind the instru-
ment panel. The A/C evaporator is positioned in the
HVAC housing so that all air entering the housing
must pass over the evaporator fins before it is dis-
tributed through the heating-A/C system ducts and
outlets. However, air passing over the evaporator fins
will only be conditioned when the A/C compressor is
engaged and circulating refrigerant through the A/C
evaporator.

The A/C evaporator tubes are connected and sealed

to the A/C refrigerant lines by use of rubber O-ring
seals.

The A/C evaporator can only be serviced by remov-

ing and disassembling the HVAC housing assembly.

OPERATION

Refrigerant enters the A/C evaporator from the A/C

variable orfice valve as a low-temperature, low-pres-
sure mixture of liquid and gas. As air flows over the
fins of the A/C evaporator, the humidity in the air
condenses on the fins, and the heat from the air is
absorbed by the refrigerant. Heat absorption causes

Fig. 9 A/C Dischgarge Line - Condenser

1 - RADIATOR
2 - MOUNTING BRACKET
3 - COOLING FAN
4 - A/C DISCHARGE LINE
5 - BOLT
6 - UPPER MOUNTING BOLT
7 - A/C CONDENSER
8 - LOWER MOUNTING BOLT

Fig. 10 A/C Discharge Line – Compressor

1 - SUCTION LINE
2 - BOLT (2)
3 - A/C COMPRESSOR CLUTCH
4 - UPPER MOUNTING BOLT
5 - A/C DISCHARGE LINE
6 - LOWER MOUNTING BOLT (2)
7 - A/C COMPRESSOR
8 - UPPER MOUNTING BOLT

PLUMBING

24 - 45

A/C DISCHARGE LINE (Continued)

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