Heating, Ventilation & Air Conditioning: Overview Hyundai Tiburon II рестайлинг

DESCRIPTION

The triple switch is a combination of a medium switch as well as conventional low pressure and high pressure switches. The low pressure switch will turn off to stop compressor operation if refrigerant pressure is low. The high pressure switch will turn off to stop compressor operation if refrigerant pressure is too high. The medium switch will it turn on at a medium level pressure to determine the A/C system is overheating. It will cool the A/C system by operating the radiator fan and the condenser fan at high speed.

1. Rating load : Inductive load DC 12V, 10~250mA
2. Applicable voltage range : DC 8V ~ DC 16V
3. Applicable temperature range : -30°C - 120°C
4. Applicable refrigerant: R-134a
5. Insulation resistance : Min. 100Mohms at DC 500V

Operating characteristics (kg/cm 2 )

TRIPLE PRESSURE SWITCH SPECIFICATION

LOW & HIGH

Scheme 1

MEDIUM

Scheme 2

Scheme 3

Scheme 4

The photo sensor is located by the driver side defrost nozzle. In response to the photo intensity level in the vehicle, the sensor will send signals to control module to control the blower level and discharge temperature.

Scheme 5

Note. Emit intensive light toward driver side and passenger side using a lamp and check the current change between terminals 1 & 2.

Scheme 6

1. Water temperature sensor is located at the heater unit.
2. It detects coolant temperature. Its signal is used for cold engine lockout control. When the driver operates the heater before the engine is warmed up, the signal from sensor causes the heater control unit to reduce blower motor speed until coolant temperature reaches the threshold value.

Scheme 7

1. Ignition "ON"
2. Using the multi-tester, Measure resistance between terminal "1" and "2" of water temperature sensor. SPECIFICATION COOLANT TEMPERATURE SPECIFICATION Coolant temperature [°C(T)] Resistance (kohms) -30 (-22) 177.49 ± 3% -20 (-4) 97.12 ± 3% -10 (14) 55.27 ± 3% 0 (32) 32.61 ± 3% 20 (68) 12.48 ± 3% 40 (104) 5.33 ± 3% 60 (140) 2.50 ± 3% 80 (176) 1.27 ±3%
3. If the measured resistance is not specification, substitute with a known-good water temperature sensor and check for proper operation.
4. If the problem is corrected, replace the water temperature sensor. NOTE: Negative type thermistor that resistance will rise with lower temperature, and reduce with higher temperature.

Scheme 8

Scheme 9

1. Disconnect the negative (-) battery terminal.
2. Remove the crashpad lower panel(A).
3. Pull the water temperature sensor out at the heater unit with the clamp (C).
4. Install in the reverse order of removal. NOTE: Apply caulk to the water temperature sensor. Make sure that there is no air leakage.

1. The A.Q.S. sensor, located at the center support in front of the engine radiator, detects hazardous elements in ambient air and provides output signals to the control module.
2. It will detect sulfurous acid gas, carbon dioxide, carbon monoxide, hydrocarbon and allergen.
3. Sensitivity of used gas sensor Sensitivity at NO2 0.3PPM : more than 2.8 Sensitivity at gasoline 10PPM : less than 0.45
4. Delay time ON time (on): 5sec. OFF time (off): 0sec.

1. The air temperature sensor, located at the front of the engine radiator, detects ambient air temperature. It is a negative type thermistor; resistance will increase with lower temperatures, and decrease with higher temperatures.
2. The sensor output will be used for discharge temperature sensor, sensor fail-safe, temperature regulation door control, blower motor level control, mix mode control and in-car humidity control. R25°C : 30Kohms ± 3% B(0/25): 3754K ± 2% Operation Temp, range : -30°C ~ 80°C

Scheme 10

It will detect interior temperature, which will be used for discharge temperature control, sensor fail-safe, temperature door control, blower motor level control, and A/C auto control.

Scheme 11

Scheme 12

General performance

1. Operating temp. : -30°C ~ +80°C
2. Operating voltage : DC 9V ~ 16V
3. Rated voltage: DC 12V
4. Rated load : 4kgf/cm

Potentiometer specification

1. Rated voltage : DC 12V
2. Rated watt. : 0.25W (at 40°C)
3. Operation volt: DC 5V ± 0.5V
4. Total resistance : 5Kohms ± 10%

Basic performance

1. Output lock torque : Min 1.76Nm (18kgf/cm) (at DC 12 V)
2. Rated AMP : Max. 150mA
3. Lock vol. : Max. 400ma

Potentiometer

Scheme 13

1. Characteristics

Scheme 14

ACTUATOR CONNECTOR REFERENCE

Scheme 15

1. Disconnect the 7P connector (A) from the temp, actuator (B). Remove the self-tapping screws and the temp, actuator from the heater unit.
2. Install in the reverse order of removal. After installation, make sure temp, actuator runs smoothly.

Scheme 16

General performance

1. Operating temp. : -30°C ~ +80°C
2. Operating voltage : DC 9V ~ 16V
3. Rated voltage : DC 12V
4. Rated load: 4kgf/cm

Potentiometer specification

1. Rated voltage : DC 12V
2. Rated watt. : 0.25W (at 40°C)
3. Operation volt: DC 5V ± 0.5V
4. Total resistance : 5Kohms ± 10%

Basic performance

1. Output lock torque : Min 1.76Nm (18kgf/cm) (at DC 12 V)
2. Rated AMP. : Max 150mA
3. Lock vol. : Max. 400mA

Potentiometer

Scheme 17

1. Characteristics

General performance

1. Operating temp. : -30°C ~ +80°C
2. Operating voltage : DC 9V ~ 16V
3. Rated voltage : DC 12V
4. Rated load : 4kgf/cm

Scheme 18

There should be continuity between No.3 and No.4 terminals when power and ground are connected to the No.1 and No.2 terminals, and there should be no continuity when power is disconnected.

1. Rated voltage : DC 12V
2. Operation voltage range : DC 10V ~ DC 15V
3. Rated load current: DC 12V, 25A (Motor lord)

Scheme 19

Scheme 20

Scheme 21

Motor: Magnet ø70

ITEM SPECIFICATION CHART

Scheme 22

1. Rated voltage : DC 12V
2. Rated load : Blower motor
3. Standard test Temp. : 20DEG
4. Operation Temp. : -30DEG ~ +70DEG
5. Resistor off - Time requirement for blower motor locking

MODE DESCRIPTION CHART

Scheme 23

Scheme 24

Scheme 25

1. Rated voltage : DC 12V
2. Power consumption : Max. 240W
3. Operating assurance range: -30°C ~ +70°C, 10 ~ 15V
4. Performance assurance range : -30°C ~ +60°C, 10 ~ 15V

Scheme 26

Scheme 27

1. Power transistor: Equivalent to MOTOROLA MJ11032 (Pc = 300W, Ic = 50A)
2. Fuse : 250V, 15A, 128°C Condenser: 0.22μF, 50V

Scheme 28

Scheme 29

1. BLOWER SWITCH The blower switch controls the blowing level of the air conditioning system by controlling blower motor speed. The switch has an electrical circuit containing a resister that will regulate blower motor input voltage to control the motor speed.
2. MODE SWITCH The mode switch controls air conditioning system discharge location. The switch contains an electrical circuit to control an actuator that is connected to the mode door for discharge control.
3. TEMPERATURE SWITCH The temperature switch controls the temperature door position that will be used to regulate the air conditioning system's discharge air temperature. The switch includes a rack & pinion and a cable.
4. INTAKE SWITCH The intake switch controls the intake door used to regulate the intake air flow of the air conditioning system. The switch contains an electrical circuit used to control the actuator that is connected to the intake door.
5. AIR CONDITIONING SWITCH The air conditioning switch controls the on/off position of the air conditioning system compressor. The switch contains an electrical circuit that will switch on/off the power supply to the relay that is connected to the compressor.
6. REAR DEFOGGER SWITCH The rear defogger switch is used to defog the rear glass. Switching the switch on, ETACS will output a signal to operate the rear glass heat wire.

Scheme 30

CONNECTOR REFERENCE

Scheme 31

Scheme 32

Scheme 33

Scheme 34

BUTTON CONTROL AND OPERATION LOGIC

1. All buttons should be back-up.
2. Push the button, then the operation sound is made for 0.1 sec. When a S/W is selected, and operation sound is made as well).

SYSTEM OPERATION CHART