Ford Falcon. Manual — part 304
412-02-20 Heating
and
Ventilation 412-02-20
REMOVAL AND INSTALLATION
Blower Fan Assembly
HVAC Assembly
Removal
Removal
1. Disconnect electrical connector.
1. Recover refrigerant from the A/C system. Refer to
2. Undo three screws.
Section 412-03.
3. Lower the Blower Fan assembly and remove.
2. Drain engine coolant. Refer to Section 303-03.
3. Disconnect A/C tubes, Refer to Section 412-03.
CAUTION: Evaporator O-rings and tube
ends should be capped to prevent damage
and contamination.
4. Disconnect Heater hoses.
CAUTION: Cap the heater tube ends to
prevent coolant spillage onto the vehicle
interior.
5. Remove Instrument Panel, Refer to Section
501-12.
6. Disconnect
blower
harness.
7. Disconnect HIM main harness (power)
8. Disconnect HIM main harness (control).
Item
Description
1
Electrical Connector
2
3 Screws
Installation
1. Refit components in reverse order.
CAUTION: Ensure correct alignment of
cooling air guide.
Item
Description
1
HIM Main power harness
2
Evaporator sensor elec connector
3
HIM Main control harness
9. Undo the four nuts and two bolts used to retain
the HVAC Assembly mountings to the firewall.
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412-02-21 Heating
and
Ventilation 412-02-21
REMOVAL AND INSTALLATION (Continued)
10. Carefully work the firewall insulation off and over
Installation
each speed nut with a screw driver.
1. Refit components in reverse order.
NOTE: A small amount of firewall insulation
around the mounting points may be damaged at
HVAC Case Scroll
removal stage, but this is not deemed to be a
problem.
Removal
1. Undo one Screw (HIM).
11. Carefully remove the HVAC assembly from the
passenger side of the vehicle.
NOTE: On removal of the HVAC, if a large
section of firewall insulation is damaged, repair
before re-installing the HVAC Assembly.
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412-02-22 Heating
and
Ventilation 412-02-22
REMOVAL AND INSTALLATION (Continued)
2. Remove two screws used to retain the tube shield
2. Undo one Screw (Heater Tubes).
to HVAC.
3. Undo five Screws (Case-Scroll).
3. Remove shield-heater tubes.
4. Remove Case Scroll.
4. Slide out the Heater Core.
CAUTION: Care should be taken when
withdrawing heater core to prevent bending of
pipes (High stress may result at joint between
tank and pipe if end of pipes used as
"handles")
Installation
1. Refit all previously removed components in
reverse order.
CAUTION: When inserting heater core
ensure that core "bottoms out" before fitting
shield heater tube. Also ensure that foam seal
is not distorted or damaged so as to affect
integrity of air seal between case and core.
Installation
1. Refit components in reverse order.
Case Assy — Recirc Door Complete
CAUTION: Ensure correct alignment
Removal
between tongue and groove of mating parts.
1. Remove the HVAC Assembly.
Heater Core Assembly
Removal
1. Remove HVAC Assembly, as outlined in the
Removal and Installation procedure in this
section.
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412-02-23 Heating
and
Ventilation 412-02-23
REMOVAL AND INSTALLATION (Continued)
2. Remove Seal-A/C Tubes.
6. Undo five Screws retaining the recirc door
housing to the HVAC Assembly.
3. Remove one Screw from the A/C tube retaining
plate.
7. Push in HIM Recirc Lever.
CAUTION: Beware not to disengage slider
block from HIM recirc lever and ensure part is
greased when reassembled (see specifications
in this chapter).
Item
Description
1
Screw
2
AC tube retaining plate
4. Remove Plate-A/C Tubes.
8. Remove
Case-Recirc.
5. Remove Mesh Filter and Cover Assembly or
Particle Filter as outlined in this section.
Installation
1. Refit components in reverse order.
CAUTION: Ensure correct alignment
between tongue and groove of mating parts.
G34260 en
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