SPECIFICATIONS
| Item | Specification | |
|---|---|---|
| Heating | Heater | |
| Type | Air mix type | |
| Capacity | 4,600 +/- 10% kcal/hr | |
| Air conditioning | Evaporator | |
| Cooling capacity | 4,400 +/- 10% kcal/hr | |
| Compressor | ||
| Type | Swash plate (HS-15) | |
| Lubricating oil | FD46XG (PAG) | |
| Oil capacity | 150 +/- 10cc | |
| Displacement | 154cc/rev | |
| Pressure relief valve | Working pressure: 35.0 ~ 42.2kg/cm 2 | |
| Resealed pressure: Min. 28.1 kg/cm 2 | ||
| Magnetic clutch | ||
| Pulley pitch dia. | Diameter 125 | |
| Voltage & wattage | D.C 12.8V, Max. 54W | |
| Torque | Min. 4.4kg.m | |
| Refrigerant & capacity | R-134a (680 +/- 25g) | |
| Triple pressure switch | High pressure ON 32.0 +/- 2.0kg/cm 2 OFF 26.0 +/- 2.0kg/cm 2 | |
| Middle pressure ON 15.5 +/- 0.8kg/cm 2 OFF 11.5 +/- 1.2kg/cm 2 | ||
| Low pressure ON 2.0 +/- 0.2kg/cm 2 OFF 2.3 + 0.25, - 0.29kg/cm 2 | ||
| Expansion value | ||
| Super heat value | 1.6 kgf/cm 2 at 0°C | |
| 2.65kgf/cm 2 at 10°C | ||
| Thermistor (Manual A/C) | DIF 2.5 +/- 0.5°C OFF 0.8 +/- 0.4°C | |
| Heater control assembly | MANUAL Type, AUTOMATIC Type | |
HEATING, VENTILATION AND AIR CONDITIONING SPECIFICATION
CONTROL SPECIFICATION
| Control item | Control features | Remarks |
|---|---|---|
| Required discharge temperature | Required temperature determined by the set temperature and the inputted sensor value. | |
| Auto control | Required discharge temperature is determined by the set temperature and the inputted sensor value. The feature will use the required discharge temperature to perform the auto control of temp. actuator, mode actuator, intake actuator, blower motor and compressor, and maintain the set temperature stably. | |
| IN-CAR temperature correction | Upon detecting rapid changes of temperature from the INCAR sensor, it will gradually correct the incar temperature value. | 1°C UP/4sec delay 1°C DOWN/4sec delay |
| AMB temperature correction | Upon detecting rapid changes of temperature from the AMB sensor, it will gradually correct the ambient temperature value. | 1°C UP/3min delay 1°C DOWN/4sec delay |
| Photo correction | Upon detecting rapid changes of photo intensity from the PHOTO sensor, it will gradually correct the photo intensity value. | 350 --> 1000(W/m 2 )/1min delay 350 --> 1000(W/m 2 )/5min delay |
| TEMP door control | It does the automatic control to maintain the optimum TEMP door opening (0%-100%).It will be computed by the temperature set and the input signal from each sensor. | The set temperature range 17°C --> 32°C, 0.5°C step (62°F --> 90°F, 1°F step) |
| Blower speed | Automatic control of the blower speed. The target value will be computed by the set temperature and the input signal from each sensor. (7 levels may be selected in case of manual selection.) | Auto mode blower low voltage (Manual low voltage: 3.8) Auto mode heater blower HI speed: 10.6V |
| Electro-motive mode control | During auto control, it will raise the permitted voltage of blower motor gradually in order to improve comfort. | 6 seconds for shifting LO --> MAX |
| Photo compensation | During auto control, it will compensate the blower level and the discharge temperature according to the photo intensity detected from the PHOTO sensor at VENT or B/L mode. PHOTO compensation will begin after 5 seconds when ignition on. | |
| Mode door control | Automatic control of air discharge based on the required discharge temperature. It will be computed by the temperature setting and the input signal from each sensor. VENT --> B/L --> FLOOR --> VENT) In case of manual selection (VENT --> B/L --> FLOOR --> MIX --> VENT) | At OFF in AUTO mode, MODE door will maintain the AUTO control condition. At OFF in manual mode, MODE door will maintain the manual control condition. |
| MIX mode control (in auto control) | If the ambient temperature is -13°C or less in AUTO mode, discharge mode will be controlled at MIX. (When front window glass is defogged.) | Entering MIX mode, A/C will operate. |
| INTAKE door control | Auto control of intake mode based on the required discharge temperature that will be computed by the temperature setting and the input signal from each sensor. | Shift to REC when selecting REC button at FRE condition (LED on). Shift to FRE when selecting FRE button at REC condition (LED off). |
| INTAKE control at OFF | The intake door will shift to the REC position when switching the system off in auto-condition, and maintain the previous condition at OFF at manual condition. | FRE./REC. manual selection will be enabled at OFF. REC indicator will come on at OFF at AUTO mode. |
| Compressor auto control | Control automatically the compressor on/off state corresponding to the set temperature and the input signal from each sensor. | When selection the AUTO SW, the compressor is controlled to ON/OFF. When selection the DEF SW, the compressor is controlled to "ON". |
| Compressor clutch on/off control based on refrigerant temperature | If EVAP sensor temperature is below than 0.5°C, the compressor will be ON and the temperature is 3°C, or higher, with the compressor OFF. | |
| MAX HOT | When selecting the set temperature 32°C at AUTO mode, MAX HOT will be performed. It will prevail over MIX mode control. | TEMP door: MAX HOT MODE door: FLOOR mode INTAKE door: FRE mode Compressor: OFF Blower speed: AUTO HI (10.6V) |
| MAX COOL | When selecting the set temperature 17°C at AUTO mode, MAX COOL will be performed. | TEMP door: MAX COOL MODE door: FLOOR mode INTAKE door: REC mode Compressor: ON Blower speed: MAX HI |
| Electromotive heating control | If the set temperature > the in-car temperature by 3°C at B/L or FLOOR in AUTO mode, and the water temperature sensor input is 58°C or less, it will effect the electromotive heating control to prevent outside cold air from flowing toward the feet of passengers. | Blower speed: Controlled at AUTO LOW (0.5V) |
| As the coolant temperature rises, the MODE door will shift to DEF --> MIX --> AUTO. | OPERATION RELEASE 10 minutes after ignition on (In case of temperature sensor fail, it will apply the substitute value, 20°C). After pressing blower switch when water temperature sensor detection is 58°C or higher In pressing MODE switch. In Upon pressing DEF switch. | |
| MODE: Manual selection is enabled. INTAKE door: At AUTO control or at manual selection mode. | ||
| Blower speed: Manual selection is enabled (No re-entry). | ||
| Electromotive cooling control | In order to prevent hot air from the VENT or B/L in AUTO mode (A/C on mode), the blower speed will be operated at LOW for approx. 9 seconds before entering the AUTO control if the EVAP sensor detection is temperature 30°C or higher. | |
| MAX HOT | If the above condition is satisfied, electromotive cooling control will operate at any time. | |
| Air Quality System (AQS) | The AQS system will detect the hazardous elements and odors contained in the air. If the harmful element concentration is higher than standard, the system will output a LOW signal (0V) to the FATC. | When the initial battery connection and ignition is ON, it will operate at AUTO mode. (AQS will not operate). |
| If the concentration is within the standard value, the system will output a HI signal(3V) the FATC. | When IGN 2 ON, the AQS assembly will be preheated for 34.5 +/- 5seconds. During the preheating, AQS will output 0V (ground). (REC mode) | |
| Corresponding to the signal from the AQS, it will control the INTAKE door as follows to prevent the inflow of harmful gas in FATC | IGN 2 ON: It will check circuit break on the AQS assembly's signal line for approx. 7 seconds during the preheating, irrespective to the AQS switch condition. | |
| Condition: INTAKE door position | When AQS is selected prior to IGN2 OFF and IGN2 is turned OFF --> ON: AQS indicator will come on, and the system will operate at AQS mode. (Store the previous condition before IGN 2 OFF) | |
| LOW: REC | ||
| HI: FRE | ||
| Initialization Upon battery-on | When supplying the initial power, it will operate in the initial condition. | When the initial ignition ON after battery connection, the system will operate at the set temperature 25°C and at AUTO mode. |
| Memory | When removing the ignition key, it will store FATC's operating condition. | When IGN ON after IGN OFF during FATC operation, the system will operate at the previous before the ignition off. |
CONTROL SPECIFICATION
Scheme 1
| I/NO | USE | CONNECTOR & HOUSING SPEC. | TMNL NO. | CIRCUIT | REMARK |
|---|---|---|---|---|---|
| A | FATC COMPONENT | AMP 175446 | 1 | RHEOSTAT | |
| 2 | TAIL LAMP | ||||
| 3 | BATTERY | ||||
| 4 | POWER TR(B) | ||||
| 5 | POWER TR(C) | ||||
| 6 | |||||
| 7 | HUMIDITY | ||||
| 8 | |||||
| 9 | TEMP ACT'R (CCW) | COOL | |||
| 10 | INTAKE ACT'R (CCW) | FRESH | |||
| 11 | HTD | ||||
| 12 | IGN 2 | ||||
| 13 | GND | ||||
| 14 | MODE ACT'R (CW) | VENT | |||
| 15 | MODE ACT'R (CCW) | DEF | |||
| 16 | |||||
| 17 | A/CON OUTPUT | ||||
| 18 | HI SPEED RELAY | ||||
| 19 | PHOTO SENSOR (+) | ||||
| 20 | PHOTO SENSOR (GND) | ||||
| 21 | REAR DEFOG | ||||
| 22 | TEMP ACT'R (CW) | WARM | |||
| 23 | INTAKE ACT'R (CW) | REC | |||
| 24 | AWS | ||||
| 25 | IGN 2 | ||||
| 26 | GND | ||||
| B | FATC COMPONENT | AMP 175446 | 1 | REAR SENSOR IN | |
| 2 | A/C SELECT | ||||
| 3 | AMB SENSOR (+) | ||||
| 4 | EVA. SENSOR (+) | ||||
| 5 | W/TEMP SENSOR (+) | ||||
| 6 | |||||
| 7 | |||||
| 8 | SENSOR REF (+5V) | ||||
| 9 | INCAR SENSOR OUT | ||||
| 10 | TEMP F/B SIGNAL | ||||
| 12 | MODE F/B SIGNAL | ||||
| 13 | |||||
| 14 | |||||
| 15 | |||||
| 16 | |||||
| SENSOR GND |
BLOWER AND A/C CONTROLS (AUTOMATIC) CONNECTOR REFERENCE CHART
Scheme 2
Scheme 3
Since FATC controller is complicated in functions see scheme 126, it is impossible to conclude its reason at the occurrence of failure. All possibilities of failure shall be considered for the purpose of efficient. How to check.
- Power supply check
- Back light and Rear glass heat rays check
- Blower check
- Air conditioner check
- Intake check and AQS check
- Mode check
- Temp check