Panasonic CS-W50BD3P, Service Manual, Page: 48 / 97

22 GROUP CONTROL
1 Setting group for 1 remote control unit
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When using a remote control thermostat, the thermostat setting is used for all indoor units in the group.
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During group control, up to a maximum of 16 indoor units can be connected. (Do not mix heat pump units and cooling only
units.)
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Do not mix manual settings and automatic settings. (Manual settings take priority.)
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The master unit and slave units can all be centrally controlled during group control.
Automatic setting for group control
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If the power supplies for indoor units which are connected are turned on simultaneously, the indoor unit numbers will be
determined automatically after approximately 1 minute. (DIP switch settings are not necessary.)
NOTE:
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Correct wiring connections are basic requirements for automatic setting. If the wires are connected incorrectly when the power
is turned on, the settings will not be made correctly and operation will not be possible.
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When address numbers are set automatically, you will not know which address number corresponds to which indoor unit.
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Do not turn off the power supply for at least 1 minute during automatic address setting, otherwise the settings will not be made
correctly.
Automatic address resetting for group control
After setting DIP switches 1 to 4 to OFF and stop operation. Then press the “AIR SWING AUTO”, “OPERATION MODE” and “Air
conditioner No.” switches simultaneously. Then addresses will be momentarily reset, and then automatic address setting will be
carried out once more.
Switching the thermistor
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The temperature detection thermistor used for detecting the air temperature and changing between COOL and HEAT
operation can be switched between the thermistor at the indoor unit and the thermistor at the remote control unit box.
However, do not switch to the remote control unit thermistor if using two remote control units.
1. While operation is stopped, press and hold the STOP/RUN switch, and then press the UP and DOWN
switches together.
2. "DO" or "01" will appear in the time display.
3. Press the FORWARD or BACK timer switches to switch the display between "00" and "01 ". "00" ... Indoor unit setting
(factory default) "01" ... Remote control unit setting
4. Press the RESERVE switch. (Be sure to press the RESERVE switch so that normal operation mode can be resumed.)
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Repeat the procedure in steps (1) to (4) to change the setting again.
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