II - 20
Checking the coolant level
Check the coolant level from the inspection opening of the exhaust top side panel.
The internal display panel has the cutout shapes shown in the detailed diagram to indicate the “L Level” and “H
Level.”
Make sure the coolant level is at the “H Level.”
If there is not enough coolant, add coolant up until the “H Level.”
* Coolant concentration: 50 ±5%
Opening the 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. (Figure 15)
(Same for the gas tube, liquid tube, and balance 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 tube, and fully open when the slit of
the tab is parallel to the tube.
Insert the packing properly, and close the cap.
* Be suf
fi
ciently careful because if the packing is inserted incorrectly, the valve may also turn in the close direc-
tion when you close the cap.
Figure 14 Checking the coolant level
Coolant re
fi
ll hole
Rubber cap
Coolant re
fi
ll
hole cover
H level
L level
Side panel
Fully closed
Fully open
Figure 15
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