DISCHARGING SYSTEM
Discharge A/C system, using approved refrigerant recovery/ recycling equipment. Always follow recovery/recycling equipment manufacturer's instructions. After refrigerant recovery process is completed, the amount of compressor oil removed must be measured and the same amount added to A/C system.
DISCONNECTING LINES & FITTINGS
After system is discharged, carefully clean area around all fittings to be opened. Always use 2 wrenches when tightening or loosening fittings. Some refrigerant lines are connected with a coupling. Special tools may be required to disconnect lines. Cap or plug all openings as soon as lines are removed. Remove caps until connections of lines and fittings are to be completed.
CONNECTING LINES & FITTINGS
Note. All R-134a based systems use 1/2"-16 ACME threaded fittings. Ensure all replacement parts match the connections of the system being worked on.
Always use a new gasket or "O" ring when connecting lines or fittings. Coat "O" ring with refrigerant oil and ensure it is not twisted during installation. Always use 2 wrenches to prevent damage to lines and fittings.
NIPPONDENSO - 10-CYLINDER
After refrigerant recovery process is completed, amount of refrigerant oil removed from old compressor must be measured and same amount added to replacement compressor. When replacing components, add specified new refrigerant oil. See COMPONENT REFRIGERANT OIL CAPACITIES table.
| Component | Ounces | |
|---|---|---|
| Compressor | ||
| GS300, SC300 & SC400 | 4.8 | |
| ES300, LS400 & LX450 | 4.1 | |
| Condenser | 1.4 | |
| Evaporator | 1.4-1.7 | |
| Receiver-Drier | ||
| GS300, SC300 & SC400 | 2.9 | |
| ES300, LS400 & LX450 | 0.4 | |
COMPONENT REFRIGERANT OIL CAPACITIES