Subaru 2009 IMPREZA, Service Manual

Page: 2684 / 3619

AC-4
General Description
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
• Manual A/C model
Item Specifications
Type of air conditioner Reheat air-mix type
Cooling capacity 5.0 kW (4,299 kcal/h, 17,059 BTU/h)
Refrigerant
HFC-134a (CH
2
FCF
3
)
[0.5
r
0.03 kg (1.1
r
0.07 lb)]
Compressor
Type Rotary fixed capacity (DVK-10R)
Discharge 105 cc (6.41 cu in)/rev
Max. permissible speed 7,700 rpm
Magnet clutch
Type Dry, single-disc type
Power consumption 38.8 W
Type of belt V-belt 4 PK
Pulley dia. (effective dia.) 100 mm (3.9 in)
Pulley ratio 1.32
Condenser
Type Sub cool type
Core face area 0.188 m
2
(2.002 sq ft)
Core thickness 16 mm (48.44 in)
Radiation area 4.5 m
2
(48.44 sq ft)
Receiver drier Effective inner capacity 177 cm
3
(10.8 cu in)
Expansion valve Type Block
Evaporator
Type Dual-tank
Dimensions (W × H × T)
290.1 × 172 × 39 mm
(11.42 × 6.77 × 1.54 in)
Blower fan
Fan type Sirocco fan
Outer diameter × width 150 × 75 mm (5.91 × 2.95 in)
Power consumption 250 W
Condenser fan (Sub fan)
Motor type Magnet
Power consumption 90 W
Fan outer diameter 300 mm (11.8 in)
Radiator fan (Main fan)
Motor type Magnet
Power consumption 90 W
Fan outer diameter 300 mm (11.8 in)
Idle speed MPFI model
Non-turbo MT model (no load): 650
r
100 rpm
Non-turbo MT model (A/C ON): 850
r
100 rpm
Non-turbo AT model (no load): 700
r
100 rpm
Non-turbo AT model (A/C ON): 850
r
100 rpm
Triple switch
(Pressure switch)
Low-pressure switch
operating pressure
ON
o
OFF
177
r
25 kPa
(1.80
r
0.25 kgf/cm
2
, 25.7
r
3.6 psi)
OFF
o
ON
206
r
30 kPa
(2.10
r
0.31 kgf/cm
2
, 29.9
r
4.3 psi)
High-pressure switch
operating pressure
ON
o
OFF
2,940
r
200 kPa
(29.98
r
2.04 kgf/cm
2
, 426.3
r
29 psi)
OFF
o
ON
2,350
r
200 kPa
(24.00
r
2.04 kgf/cm
2
, 340.7
r
29.0 psi)
Middle-pressure switch
operating pressure
ON
o
OFF
1,470
r
120 kPa
(14.99
r
1.22 kgf/cm
2
, 213.15
r
17.4 psi)
OFF
o
ON
1,770
r
100 kPa
(18.05
r
1.02 kgf/cm
2
, 256.65
r
14.5 psi)