Basic Operation For Shutoff Valves Of W Multi - Panasonic U-16GE2E5 Main Parts Replacement

Basic Operation

4. Basic Operation for Shutoff Valves of W MULTI

(1) Opening and closing of shutoff valves
Ball valves are used for the shutoff valves on the outdoor unit, so they can be opened and closed by rotating the
tab 90 degrees.
Remove the cap with a monkey wrench.
Gently and steadily turn the tab to the left (counterclockwise) by 90 degrees. (Same for the refrigerant gas tube,
refrigerant liquid tube)
The valve is fully open when the tab has been rotated 90 degrees (when it contacts the stopper). Do not try to
rotate it any further.
* The valve is fully closed when the slit of the tab is at right angles to the pipe, and fully open when the slit
of the tab is parallel to the tube.
Note 1): If the unit is operated while the closing valves are still closed, the discharge pressure of the refrigerant
will rise to an abnormal level, and the compressor, the four-way valves, and other parts will be damaged.
Note 2): Be sure to close the valves when performing the forced backup operation. If another unit is operated,
refrigerant will enter into and collect in the stopped outdoor unit.
Fully closed
Refrigerant Refrigerant
gas tube liquid tube
Fully opened
Refrigerant
gas tube
5
Refrigerant
liquid tube