Servicing The Driver Evaporator; Access Cover Removal; Air Filter Removal; Removal Of Evaporator/Heater Coil Assembly - Carrier 68G5-105 Series Operation & Service Manual

b. Remove the power wire from the power stud and the
connector from the box.
c. Remove the 1/4-inch capscrew at the upper right
cover of the box. Pull the box laterally approximately
3/4-inch to the right to remove it from the pocket.
d. Rotate box counterclockwise 90 degrees as shown in
Figure 4-10 and carefully lift the box out.
e. Repair or replace defective components, as
necessary.
f. Re-install the driver control box by reversing the
above procedure.

4.25 SERVICING THE DRIVER EVAPORATOR

4.25.1 Access Cover Removal

a. Remove stepwell access cover and disconnect
2-inch flex hose adapter.
b. Using a flat screwdriver, unfasten three 1/4 turn
fasteners from access cover on driver evaporator
assembly.
c. Open driver storage compartment and remove plug in
sheet metal.
d. With screwdriver, unfasten the last 1/4 turn fastener.
e. Draw access cover towards the rear and slide to the
right.
4.25.2Blower Removal
a. Disconnect plugs and speed control from the blower.
b. Undo latch and push the blower towards the rear.
c. Drop the blower down and remove.

4.25.3 Air filter Removal

a. With the access cover removed, slide right hand side
air filter towards center and turn right corner past
edge.
b. Slide left hand side filter to the right and repeat as
above.
c. Clean/replace filter and re-install.
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4.25.4 Removal of Evaporator/Heater Coil
Assembly
a. Clamp off silicon hose close to the input and output
end of the heater core.
b. Disconnect hose clamps and separate hose from
fitting.
c. Pump down the refrigerant system. (Refer to
paragraph 4.4.1)
d. Disconnect liquid line solenoid valve plug.
e. Disconnect expansion valve thermal bulb attached to
the 7/8-inch copper tube.
f. Disconnect 7/8 and 3/8-inch copper lines.
g. Remove screws that attach the heater core to the
unit.
h. Lift evaporator coil up and pull towards the rear for
removal.

4.25.5 RAM Air Actuator Removal

a. Disconnect the plug.
b. Remove the no. 10 screw from the end of the spring
on the RAM air actuator.
4.26 SERVICING THE PARCEL RACK
EVAPORATOR

4.26.1 Motor Removal

a. Disconnect the motor wires from the connector.
b. Remove the two bolts from the motor mount and
remove the motor.
c. Remove the blower and motor assembly.

4.26.2 Removal of Parcel Rack Evaporator Coil

a. Pump down the refrigerant system. (Refer to
paragraph 4.4.1)
b. Remove the side access panel.
c. Disconnect expansion valve thermal bulb attached to
the 7/8-inch copper tube.
d. Disconnect 7/8 and 3/8-inch copper lines.
e. Lift evaporator coil up and push towards the rear for
removal.
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