Inspecting Refrigerating Machine Oil And Refrigerant - Daikin GYEQ20AN Service Manual

Inspecting the Outdoor Unit

1.13 Inspecting Refrigerating Machine Oil and Refrigerant

1. Make preparations so that you can measure the gas pressures at the high-side pressure
2. Make sure that the stop valve is open.
3. If the pressure at the high-side pressure servicing port (not at the stop valve) rises rapidly
• If, in the state shown in the figure above with the temperature at point A equal to or higher
183
Inspecting the oil separator
servicing port and stop valve using a manifold gauge.
after the system starts up in heating mode, chances are that the oil separator is clogged.
Replace the oil separator.
Inspecting the oil return pipe
than 60°C, the temperature at point B falls to or below 50°C during operation, chances are
that the pipe is clogged at (or downstream of) point B or the solenoid valve is faulty.
A
Oil separator
B
023305-02EN01
SiAUY361411EA
Parts Inspection