open circuit error code (F26) will be displayed.
/ / Automatic address resetting for twin systems
Function
- This clears the current twin addresses which have been set automatically, and causes automatic
twin address setting to be carried out once more.
Procedure: Press the ADDRESS RESET switch SW3 (push button switch) on the outdoor unit circuit board continuously / until LEDs 2 to 8
on the outdoor unit circuit board are all illuminated (takes approx. 3.5 seconds).
Operation: The outdoor unit will reset the addresses for the indoor units which it is connected to, and will send an instruction / to carry out
automatic address setting again. If the indoor unit DIP switches have not been manually set for / twin address setting, the indoor units
receive this command and they then clear their existing settings and carry / out automatic address setting.
If an indoor unit has had its address set by the DIP switch (DIP switch 1-8 is ON), or if the remote
control unit is connected to one of the indoor units, then the addresses for those indoor units
cannot be reset.
- The indoor units will not run for approximately 1 minute while automatic twin address resetting is
being carried out.
- Do not turn off the power supply for at least 1 minute after automatic twin address resetting has
been carried out.
19.2. Piping connections
- The following table shows the pipe diameters for a twin-type system. /
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