Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual — part 586

AC-3

General Description

HVAC SYSTEM (HEATER, VENTILATOR AND A/C)

Radiator fan (Main fan)

Motor type

Magnet

Power consumption

120 W

Fan outer diameter

318.5 mm (12.5 in)

Idle speed

MPFI model

No load

700±100 rpm

A/C ON

750±100 rpm

Triple switch
(Pressure switch)

Low-pressure switch
operating pressure

ON → OFF

196±25 kPa

(2.0±0.25 kgf/cm

2

, 28.4±3.6 psi)

OFF → ON

225±30 kPa

(2.30±0.31 kgf/cm

2

, 32.6±4.3 psi)

High-pressure switch
operating pressure

ON → OFF

2,940±200 kPa

(29.98±2.04 kgf/cm

2

, 426.3±29 psi)

OFF → ON

2,350±200 kPa

(24.00±2.04 kgf/cm

2

, 340.7±29.0 psi)

Middle-pressure switch
operating pressure

ON → OFF

1,470±120 kPa

(14.99±1.22 kgf/cm

2

, 213.15±17.4 psi)

OFF → ON

1,770±100 kPa

(18.05±1.02 kgf/cm

2

, 256.65±14.5 psi)

Thermo-control amplifier working temperature

(1) ON

(2) OFF

(3) 1.5±0.3°C (34.7±0.5°F)
(4) 1.0±0.5°C (33.8±0.9°F)

Item

Specifications

AC-00601

(1)

(2)

(3)

(4)

AC-4

General Description

HVAC SYSTEM (HEATER, VENTILATOR AND A/C)

B: COMPONENT

1. HEATER COOLING UNIT

• Auto A/C model

(1)

Expansion valve

(13) Drain hose

(25) Aspirator

(2)

Gasket

(14) Mode actuator

(26) Air mix actuator

(3)

Grommet

(15) Heater core pipe

(27) O-ring

(4)

Case

(16) Heater pipe cover

(28) Mode main lever

(5)

O-ring

(17) Heater core cover

(29) Vent door link

(6)

Evaporator pipe

(18) O-ring

(30) Defroster door link

(7)

Evaporator

(19) Clamp

(31) Mode link

(8)

Lining

(20) Heater core

(9)

Evaporator sensor

(21) Pipe clamp

Tightening torque: N·m (kgf-m, ft-lb)

(10) Evaporator pipe cover

(22) Foot duct (LH)

T1: 5.0 (0.51, 3.7)

(11) Evaporator cover

(23) Foot duct (RH)

T2: 6.7 (0.68, 4.9)

(12) Power transistor

(24) Heater case

T3: 7.5 (0.76, 5.5)

AC-02143

(1)

(2)

(3)

(4)

(5)

(27)

(27)

(6)

(7)

(8)

(9)

(10)

(11)

(12)

(13)

(14)

(29)

(28)

(15)

(16)

(17)

(18)

(19)

(20)

(21)

(22)

(23)

(24)

(25)

(30)

(31)

(26)

(5)

T3

T3

T2

T1

AC-5

General Description

HVAC SYSTEM (HEATER, VENTILATOR AND A/C)

• Manual A/C model

(1)

Expansion valve

(13) Drain hose

(25) Mode main lever

(2)

Gasket

(14) Heater core pipe

(26) Vent door link

(3)

Grommet

(15) Heater pipe cover

(27) Defroster door link

(4)

Case

(16) Heater core cover

(28) Mode link

(5)

O-ring

(17) O-ring

(6)

Evaporator pipe

(18) Clamp

Tightening torque: N·m (kgf-m, ft-lb)

(7)

Evaporator

(19) Heater core

T1: 5.0 (0.51, 3.7)

(8)

Lining

(20) Pipe clamp

T2: 6.7 (0.68, 4.9)

(9)

Thermostat

(21) Foot duct (LH)

T3: 7.5 (0.76, 5.5)

(10) Evaporator pipe cover

(22) Foot duct (RH)

(11) Evaporator cover

(23) Heater case

(12) Resistor

(24) O-ring

AC-03111

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

(12)

(13)

(14)

(15)

(16)

(17)

(18)

(19)

(20)

(21)

(23)

(24)

(22)

(5)

T3

T3

T2

T1

(27)

(26)

(28)

(25)

(25)

(11)

AC-6

General Description

HVAC SYSTEM (HEATER, VENTILATOR AND A/C)

2. BLOWER MOTOR UNIT

(1)

Lining

(6)

Hose

(11) Relay holder bracket

(2)

Upper case

(7)

Lower case

(3)

Intake door actuator

(8)

Lining

Tightening torque: N·m (kgf-m, ft-lb)

(4)

Filter

(9)

Intake door link

T: 7.5 (0.76, 5.5)

(5)

Blower motor ASSY

(10) Relay bracket

AC-01768

T

T

T

(1)

(4)

(5)

(6)

(7)

(10)

(11)

(8)

(3)

(9)

(2)