Johnson Controls YVAHP0721CW Series, Service Manual

Page: 310 / 416

4-26
SM-16007
MAINTENANCE
TURN OFF all power source switches.
(5) Remove (G) solenoid valve coil connected to (H) solenoid valve body of the return oil circuit according
to Section 4.1.14.2 “Removing Solenoid Valve Coil”.
(6) Cut off (I) return oil circuit connecting with (J) accumulator pipe at the cutting position indicated in the
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After that, remove remaining return oil circuit inside of (L) brazing for return oil circuit.
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Remove (I) return oil circuit from the unit. Then, remove (M) brazing for oil separator outlet.
NOTES:
1. When cutting (I) return oil circuit off, cut the closer part to (I) return oil circuit to prevent the
refrigerant oil remaining in (I) return oil circuit from spilling out.
2. When cutting (I) return oil circuit off, do not use a saw.
3. After cutting (I) return oil circuit off, remove the cut-off piping from (M) brazing for oil separator
outlet.
4. When removing (L) brazing for return oil circuit at the upper part of the return oil circuit and (M)
brazing for oil separator outlet, refrigerant oil may come out. Prepare the oil pan before the work to
receive the refrigerant oil.