Panasonic 2WAY MULTI U-16GE3E5 Test Run Manual page 37

Setting the total stop switch
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Check that energizing has taken place for 5 hours, and then set SW001 (STOP SW) of the outdoor main board from
the "STOP" side to "NORM" side. The engine will not start up while the switch is set to "STOP."
The indication on the seven-segment display changes from "      " to the normal display.
If the unit is operated while the valve is still closed,
the discharge pressure of the refrigerant will rise to
an abnormal level, and the compressor and the like
will be damaged.
Checking the outdoor unit refrigerant tubing and control wiring (outdoor unit tubing connection check)
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* If there are multiple refrigerant systems like in cases of collective installation, it is necessary to check each sys-
tem for the correct matching of the control wiring and the refrigerant tubing for all the outdoor units belonging to
the same system.
* If there is a W MULTI system in multiple systems like in cases of collective installation, be sure to check the
outdoor unit tubing connection.
* This checking operation can be done even when the indoor unit address setting is not yet made.
* Start this operation from the outdoor unit with the smallest address.
<How to check the outdoor unit refrigerant tubing and control wiring>
1) Press and hold the HOME (SW004) key for longer than 1 second to display the menu item number "    ".
2) Next, press the UP (SW005) or DOWN (SW006) key to select the menu item number "    ".
3) After "    " is displayed, "      " is displayed. While "      " is displayed, press the SET (SW007)
key. (Green LED lights up.)
4) Next, use the UP (SW005) or DOWN (SW006) key to select the tubing connection check display "     ".
When the tubing connection check display has been selected, press and hold the SET (SW007) key for longer
than 1 second.
5) The TEST/WARNING indicator (red LED (LED052)) lights up, and the tubing connection is checked automati-
cally.
* Note that during the tubing connection checking operation, the outdoor unit with smallest address runs.
6) When the checking of the tubing connection is complete, the TEST/WARNING indicator (red LED (LED052))
goes out.
7) If the tubing connection checking detects an error, the warning code "    " is displayed on the seven-segment
LED on the outdoor unit main board. In this case, re-check the outdoor units for settings or check the outdoor
unit control wiring and refrigerant tubing for matching.
CAUTION
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