L13 Indoor Unit Model Type Setting Failure - Panasonic 2WAY Multi Technical & Service Manual

L13 Indoor Unit Model Type Setting Failure

Error detection method
Errors are determined when the types, capacity levels and models that cannot be connected have not been set.
• When the water heat exchanger unit and an indoor unit other than a water heat exchanger unit have been
connected together within the same cooling system.
• When a cooling coil and an indoor unit other than a cooling coil have been connected together within the
same cooling system.
Note: The term "connected together" as used above means "connected in combination" from an electrical point
of view. Consequently, even if the refrigerant tubes are in a different system, they are assumed to be
connected when indoor and outdoor operation wiring is linked and they share the same system address.
If this combination represents "models that cannot be used in combination" as explained above, an error
will be triggered.
• When the indoor unit type has been mistakenly set in the remote controller's advanced mode.
Troubleshooting
1
1-1 Is the connected unit a water heat exchanger unit?
Indoor/
outdoor unit
Is a unit other than a water heat exchanger unit connected to
check
1-2
the system?
An indoor unit other than a water heat exchanger unit is connected together. It is a model that
1-3
cannot be connected, so change it to a connectable unit.
1-4 Is the connected indoor unit a cooling coil?
Is an indoor unit other than a cooling coil connected to the
1-5
system?
An indoor unit other than a cooling coil is connected together. It is a model that cannot be
1-6
connected, so change it to a connectable unit.
Check the type setting (item code 10) for the indoor unit set
with the remote controller's advanced mode. Does the setting
1-7
match up to the actual indoor unit's type?
* Setting value 32: Cooling coil
Amend the type setting (item code 10) with the remote
1-8 controller's advanced mode, and reset the power supply for
the outdoor unit. Is the alarm triggered again?
There is a chance that the actual piping connections do not match up with the unit's address
setting. Check the status of the indoor and outdoor unit connections, and set the address
1-9 correctly with the remote controller's advanced mode if there is a problem.
If no problem can be found or the problem reoccurs after being repaired, replace the circuit
board.
● For information on the remote control's advanced settings, see Chapter 5 "Reference Document."
* When the address settings for the indoor and outdoor unit and the type settings for the indoor unit have been
amended, make sure that the power supply to the outdoor unit is reset without fail. (The new confi guration
will be recognized during initial communications.)
IV–75
Yes 1-2
No 1-4
Yes 1-3
No 1-9
Yes 1-5
No 1-7
Yes 1-6
No 1-7
Yes 1-9
No 1-8
Yes 1-9
No End