SUBARU TRIBECA 2009 1.G Service Workshop Manual

AC-5
General Description
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
Tr i p l e s w i t c h
(Pressure switch)
Low-pressure switch
working pressure
ON → OFF196±20 kPa
(2.00±0.20 kg/cm2, 28.4±2.9 psi)
OFF → ON225 +25 –29 kPa
(2.29 +0.25 –0.30 kg/cm2, 32.6 +3.6 –4.2 psi)
High-pressure switch
working pressure
ON → OFF3,140 +50 –200 kPa
(32.02 +0.51 –2.04 kg/cm2, 455.4 +7.25 –29.0 psi)
OFF → ON2,550±200 kPa
(26.00±2.04 kg/cm2, 369.8±29.0 psi)
Middle-pressure switch
operating pressure
ON → OFF1,370±120 kPa
(13.97±1.22 kg/cm2, 198.65±17.35 psi)
OFF → ON1,770±100 kPa
(18.05±1.02 kg/cm2, 256.81±14.50 psi)
Thermo-control amplifier working temperature
(Evaporator outlet air)
(1) ON
(2) OFF
(3) 1±0.5°C (33.8±0.9°F)
(4) 4 +1.5 0°C (39.2 +2.7 0 °F)
Item Specification
AC-00601
(1)
(2)
(3)
(4)

AC-6
General Description
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
B: COMPONENT
1. HEATER COOLING UNIT
AC-01268
(12)
(11)
(10)
(9)(8)
(7)
(15)
(16)
(18)(14)
(13)
(17)
(20)
(3)
(6)
(1)(21)
(2)
(5)
(19)
T
T
(4)

AC-7
General Description
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
(1) Heater unit case LH (9) Evaporator cover (17) Heater Core
(2) Separator (10) Power transistor (18) Heater pipe clamp
(3) Mode door RR (11) Pipe cover (19) Heater core cover
(4) Mode door FR (12) Drain hose (20) Air mix door actuator LH
(5) Air mix door LH (13) Air mix door actuator RH (21) Aspirator
(6) Air mix door RH (14) Expansion valve
(7) Heater unit case RH (15) Evaporator sensorTightening torque: N·m (kgf-m, ft-lb)
(8) Mode door actuator (16) EvaporatorT: 7.5 (0.76, 5.5)

AC-8
General Description
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
2. BLOWER MOTOR UNIT
Front
(1) Upper case (5) Filter coverTightening torque: N·m (kgf-m, ft-lb)
(2) Blower plate (6) Control unit (Auto A/C model)T: 7.5 (0.76, 5.5)
(3) Lower case (7) FRESH/RECIRC door actuator
(4) Blower motor (8) Filter
AC-01269
T
T
(8)
(1)
(2)
(3)
(4)
(5)(6)
(7)

AC-9
General Description
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
Rear
3. CONTROL PANEL
(1) Inner case (5) Blower motorTightening torque: N·m (kgf-m, ft-lb)
(2) Evaporator (6) Expansion valveT: 7.5 (0.76, 5.5)
(3) Outer case (7) Expansion tube
(4) Blower resistor (8) Cover
(1) Audio ASSY (3) Center duct (RH) (5) Navigation, MFD control switch
(2) Control panel (4) Center duct (LH)
AC-01315
(1)
(2)
(6)
(7)
(3)
(5)
(4)
(8)
AC-01270
(1)
(2)
(3)
(4)
(5)

AC-10
General Description
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
Rear cooler model
(1) Dial (2) Control panel (3) Blower switch
AC-01316
(1)
(3)
(2)

AC-11
General Description
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
4. AIR CONDITIONING UNIT
(1) Condenser (5) CompressorTightening torque: N·m (kgf-m, ft-lb)
(2) Hose (High-pressure) (6) O-ringT1: 7.5 (0.76, 5.5)
(3) Hose (Low-pressure) (7) ClampT2: 10 (1.0, 7.4)
(4) Bracket (8) TubeT3: 5 (0.5, 3.7)
AC-01272
(4)
T2
(7)
(8)
(5)
(6)(2)
T3
T1T3
(6)
(6)(1)
T1
(6)
(3)
T1
T3
T3

AC-12
General Description
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
5. COMPRESSOR
(1) Compressor upper bracket Tightening torque: N·m (kgf-m, ft-lb)
(2) Compressor T1: 26.5 (2.95, 21.3)
(3) Compressor lower bracket T2: 36 (3.7, 26.6)
AC-01273
(1)
(2)
(3)T1
T2
T2
T2

AC-13
General Description
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
6. HEATER DUCT
(1) Side ventilation duct (LH) (5) Upper duct (LH) (9) Side defroster duct (RH)
(2) Side ventilation duct (RH) (6) Upper duct (RH) (10) Rear heater duct (LH)
(3) Center ventilation duct (7) Center duct (RH) (11) Rear heater duct (RH)
(4) Center duct (LH) (8) Side defroster duct (LH)
AC-01274
(7)
(5)
(6)
(10)(11)
(1)
(2)
(9)
(4)
(3)
(8)

AC-14
General Description
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
C: CAUTION
1. HFC-134A A/C SYSTEM
•The cooling system components for the HFC-
134a system such as the refrigerant and compres-
sor oil are different from the conventional CFC-12
system components and they are incompatible with
each other.
•Vehicles with the HFC-134a system can be iden-
tified by the label (A) attached to the vehicle.
Before maintenance, check which A/C system is in-
stalled to the vehicle.
2. COMPRESSOR OIL
•HFC-134a compressor oil has no compatibility
with that of CFC-12 system.
•Use only Denso Oil 8, the manufacturer-autho-
rized compressor oil for the HFC-134a system.
•Do not mix multiple compressor oils.
If CFC-12 compressor oil is used in the HFC-134a
A/C system, the compressor may become stuck
due to poor lubrication, or the refrigerant may leak
due to swelling of rubber parts.
On the other hand, if HFC-134a compressor oil is
used in a CFC-12 A/C system, the durability of the
A/C system will be lowered.
•HFC-134a compressor oil is very hygroscopic.
When replacing or installing/removing A/C parts,
immediately isolate the oil from atmosphere using a
plug or tape. In order to avoid moisture, store the oil
in a container with its cap tightly closed.
3. REFRIGERANT
•CFC-12 refrigerant cannot be used in a HFC-
134a A/C system. HFC-134a refrigerant, also can-
not be used in a CFC-12 A/C system.
•If an incorrect or no refrigerant is used, it will re-
sult in poor lubrication and the compressor itself
may be damaged.
4. HANDLING OF REFRIGERANT
•The refrigerant boils at approx. –30°C (22°F).
When handling it, be sure to wear protective gog-
gles and protective gloves. Direct contact of the re-
frigerant with skin may cause frostbite.
If the refrigerant gets into your eye, avoid rubbing
your eyes with your hands. Wash your eye with
plenty of water, and receive medical treatment from
an eye doctor.
•Do not heat a service can. If a service can is di-
rectly heated, or put into boiling water, the inside
pressure will become extremely high. This may
cause the can to explode. If a service can must be
warmed up, use warm water of 40°C (104°F) or less.
•Do not drop or subject a service can to impacts.
(Observe the precautions and operation procedure
described on the refrigerant can.)
•When the engine is running, do not open the
high-pressure valve of the manifold gauge. High-
pressure gas can back-flow resulting in an explo-
sion of the can.
•Provide good ventilation and do not work in a
closed area.
•In order to prevent global warming, avoid releas-
ing HFC-134a into the atmosphere. Using a refrig-
erant recovery system, discharge and recycle the
gas.
AC-01380
(A) Goggles
(B) Gloves
(C) Avoid open flame
(D) No direct heat on container
(E) Do not discharge
(F) Loosen
(A)(B)
(C) (D)
(E)
(F)
AC-00007