Operation Procedure for Refrigerant Charging
| WARNING | Your eyes should not be exposed to refrigerant (liquid). Any liquid HFC-134a (R-134a) escaping by accident shows a temperature as low as approximately -6°C (21.2°F) below freezing point. Should liquid HFC-134a (R-134a) get into your eyes, it may cause a serious injury. To protect your eyes against such accident, it is necessary to always wear goggles. Should it occur that HFC-134a (R-134a) strikes your eyes, consult a doctor immediately. Do not use your hand to rub the affected eye(s). Instead, use quantities of fresh cold water to splash it over the affected area to gradually raise temperature of such area above freezing point. Obtain proper treatment as soon as possible from a doctor or eye specialist. Should the HFC-134a (R-134a) liquid come into contact with your skin, the affected area should be treated in the same manner as when skin is frostbitten or frozen. Refrigerant must not be handled near where welding or steam cleaning is performed. Refrigerant should be kept at a cold and dark place. It should never be stored where a high temperature is anticipated, e.g. where exposed to direct sun light, close to fire or inside vehicle (including trunk room). Avoid breathing fumes produced when HFC-134a (R-134a) is burned. Such fumes may be hazardous to health. |
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Replenish compressor oil referring to REPLENISHING COMPRESSOR OIL . Start evacuating, and then wait 15 minutes referring to EVACUATING OF A/C SYSTEM . Stop evacuating, and then wait 10 minutes. Check system for pressure leakage referring to CHECKING OF A/C SYSTEM FOR PRESSURE LEAKS . Does gauge show normal condition? | Go to Step 2. | Inspect and repair connections, and then go to Step 1. |
| 2 | Charge A/C system with refrigerant referring to PROCEDURE OF CHARGING . Amount of refrigerant 500 +/- 30 g (17.65 +/- 1.05 oz) Check system for refrigerant leaks referring to CHECKING OF A/C SYSTEM FOR REFRIGERANT LEAKS , and then perform A/C SYSTEM PERFORMANCE INSPECTION:MANUAL TYPE . Does A/C system operate properly? | End. | Inspect and repair connections, and then go to Step 1. |
REFRIGERANT CHARGING INSPECTION CHART
A/C System Introduction
Automatic air conditioning system is that controller in HVAC control module (1) automatically controls in-car temperature, fan speed, airflow outlet and so forth. Once users set up desired in-car temperature by temperature selector of HVAC control module, the controller in HVAC control module detects in-car temperature, outside air temperature, amount of sunlight, and engine coolant temperature by inside air temperature sensor (2), outside air temperature sensor (3), sunload sensor (4), and ECT sensor (5). Then, controller of HVAC control module keeps desired in-car temperature at any time.
Scheme 51
Scheme 52
Refer to OPERATION PROCEDURE FOR REFRIGERANT CHARGING: MANUAL TYPE .
