Subaru Crosstrek manuals

Subaru Crosstrek Service Manual: Specification

HVAC SYSTEM (HEATER, VENTILATOR AND A/C) > General Description

SPECIFICATION

1. HEATER SYSTEM

Item

Specifications

Condition

Heating capacity

5.0 kW (4,299 kcal/h, 17,059 BTU/h) or more

Air flow control dial or switch: FOOT

Temperature control dial: HI (MAX HOT)

Temperature difference between hot water and inlet air: 65°C (149°F)

Hot water flow rate: 360 L (95.1 US gal, 79.2 Imp gal)/h

Air flow rate

290 m3 (10,243 cu ft)/h

FOOT mode (FRESH), MAX HOT at 12.5 V

Max air flow rate

480 m3 (16,954 cu ft)/h

Temperature control dial: LO (MAX COOL)

Fan dial: HI (MAX)

Auto A/C model: 7th position

Manual A/C model: 4th position

FRESH/RECIRC switch: RECIRC

Heater core

Dimensions (W ? H ? T)

257.5 ? 118.5 ? 27 mm

(10.1 ? 4.67 ? 1.06 in)

Blower motor

Type

Magnet motor 300 W or less

12 V

Fan type and size

(diameter ? width)

Sirocco fan type

150 ? 75 mm (5.91 ? 2.95 in)

2. A/C SYSTEM

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 (CH2 FCF3)

[0.475±0.025 kg (1.05±0.06 lb)]

Compressor

Type

Rotary fixed capacity (DKV-10Z)

Discharge

105 cc (6.41 cu in)/rev

Max. permissible speed

7,700 r/min

Magnet clutch

Type

Dry, single-disc type

Power consumption

45 W

Type of belt

V-belt 6 PK

Pulley dia. (effective dia.)

110 mm (4.33 in)

Pulley ratio

1.3

Condenser

Type

Sub cool type

Core face area

0.188 m2 (2.002 sq ft)

Core thickness

16 mm (0.63 in)

Radiation area

4.5 m2 (48.44 sq ft)

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

280 W

Condenser fan (sub fan)

Motor type

Magnet

Power consumption

120 W

Fan outer diameter

320 mm (12.6 in)

Radiator fan (main fan)

Motor type

Magnet

Power consumption

120 W

Fan outer diameter

320 mm (12.6 in)

Idle speed

No load

650±100 r/min

A/C ON

800 — 900±50 r/min

Triple switch

(Pressure switch)

Low-pressure switch operating pressure

ON > OFF

196±25 kPa

(2.00±0.25 kgf/cm2, 28.4±3.6 psi)

OFF > ON

225±30 kPa

(2.29±0.31 kgf/cm2, 32.6±4.3 psi)

High-pressure switch operating pressure

ON > OFF

2,940±200 kPa

(29.98±2.04 kgf/cm2, 426.3±29 psi)

OFF > ON

2,350±200 kPa

(24.00±2.04 kgf/cm2, 340.7±29.0 psi)

Middle-pressure switch operating pressure

ON > OFF

1,470±120 kPa

(14.99±1.22 kgf/cm2, 213.15±17.4 psi)

OFF > ON

1,770±100 kPa

(18.05±1.02 kgf/cm2, 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)

3. BASIC OPERATION

The cooling system cools down the compartment by using the pipes connecting parts and cycling the evaporable liquid (refrigerant) within the sealed system in a repeated process of “vaporization — liquefaction — re-vaporization”.

Item

Operation

Compressor

Sucks and pressurizes the low temperature, low pressure refrigerant gas that was vaporized at the evaporator by absorbing heat from the compartment, and sends the high temperature, high pressure refrigerant gas to the condenser.

Condenser

Cools the high temperature, high pressure refrigerant gas sent from the compressor for condense and liquefaction.

Expansion valve

Sprays the high temperature, high pressure liquid refrigerant from the small hole in order to let the refrigerant expand rapidly to turn it into low temperature, low pressure mist.

The refrigerant amount is adjusted according to the refrigerant vaporization condition in the evaporator.

Evaporator

The evaporator turns into a low temperature condition when the mist refrigerant that was turned into a low temperature, low pressure condition at the expansion valve is vaporized in large quantity in the evaporator. Passing air flow through the low temperature evaporator emits cold air.

Caution
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