Panasonic 2WAY MULTI U-16GE3E5 Main Parts Replacement page 63

Coolant Check, Replenishment, and Replacement Procedure
(8) Replenish the coolant in the coolant circuit by refilling the coolant replenishment
with coolant. The coolant replenishment container capacity is 2 litres.
4-3. Purging the air in the coolant circuit (setting automatic air-purge mode)
* Turn off the remote controllers for all indoor units, and stop the operation of the outdoor unit.
(1) Operation procedures
 Press the HOME key (SW004) for one second or
more. Menu item number "    " (Figure 10) will
be displayed.
 Press the UP (SW005) or DOWN (SW006) key, displaying the menu item numbers. Select menu item "   ".
(Figure 11) The display "     " will appear. (Figure 12)
 In this state, press the SET key (SW007).
The display will change to "     " and the LEVEL
LED (LEDO53) will be illuminated. (Figure 13)
Figure.11
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container several times
Figure.10
Figure.12
Figure.13