Panasonic U-8MF1E8 Installation Instructions Manual page 25

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<Case 3> Automatic Address Setting in Cooling Mode
●
Indoor and outdoor unit power cannot be turned ON for each
system separately.
In the following, automatic setting of indoor unit addresses is
not possible if the compressors are not operating. Therefore
perform this process only after completing all refrigerant
tubing work.
Automatic address setting can be performed during Cooling
operation.
Automatic Address Setting from Outdoor Unit
1 Perform steps 1 – 4 in the same way as for <Case 1>.
2 Turn the indoor and outdoor unit power ON at all systems.
↓
3 To perform automatic address setting in <Cooling mode>,
on the outdoor main unit control PCB in the refrigerant
system where you wish to set the addresses, short-circuit
the mode change 2P pin (CN101). At the same time, short-
circuit the automatic address pin (CN100) for 1 second or
longer, then release it. (Be sure to perform this process for
one system at a time. Automatic address settings cannot
be performed for more than one system at the same time.)
↓
(Communication for automatic address setting begins, the
compressors turn ON, and automatic address setting
in Cooling mode begins.)
(All indoor units operate.)
↓
* To cancel, again short-circuit the automatic
address pin (CN100) for 1 second or longer,
then release it.
The LED that indicates automatic address
setting is in progress turns OFF and the
process is stopped. Be sure to perform
automatic address setting again.
(Automatic address setting is completed when the
compressors stop and LEDs 1 and 2 on the outdoor main
unit control PCB turn OFF.)
↓
4 At the outdoor main unit in the next (different) system,
short-circuit the automatic address pin (CN100) for 1
second or longer, then release it.
↓
(Repeat the same steps to complete automatic address
setting for all units.)
↓
5 Operation from the remote controllers is now possible.
Automatic Address Setting* from the Remote Controller
* Automatic address setting in Cooling mode cannot be done
from the remote controller.
Selecting each refrigerant system individually for automatic
address setting
---Automatic address setting for each system: Item code "A1"
●
Press the remote controller timer time button and
button at the same time. (Press and hold for 4 seconds or
longer.)
●
Next, press either the temperature setting or
button.
(Check that the item code is "A1.")
●
Use either the or button to set the system
No. to perform automatic address setting.
●
Then press the button.
(Automatic address setting for one refrigerant system
begins.)
(When automatic address setting for one system is
completed, the system returns to normal stopped status.)
<Approximately 4 – 5 minutes is required.>
(During automatic address setting, "SETTING" is displayed
on the remote controller. This message disappears when
automatic address setting is completed.)
●
Repeat the same steps to perform automatic address setting
for each successive system.
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Display during automatic address setting
●
On outdoor unit PCB
1
LED 2
Blink alternately
* Do not short-circuit the automatic address setting pin
(CN100) again while automatic address setting is in
progress. Doing so will cancel the setting operation and will
cause LEDs 1 and 2 to turn OFF.
* When automatic address setting has been successfully
completed, both LEDs 1 and 2 turn OFF.
* LED 1 is D72. LED 2 is D75.
* If automatic address setting is not completed successfully,
refer to the table below and correct the problem. Then
perform automatic address setting again.
●
Display details of LEDs 1 and 2 on the outdoor unit control
PCB
( : ON : Blinking : OFF)
LED 1 LED 2 Display meaning
After the power is turned ON (and automatic
address setting is not in progress), no
communication with the indoor units in that
system is possible.
After the power is turned ON (and automatic
address setting is not in progress), 1 or more
indoor units are confirmed in that system;
however, the number of indoor units does not
match the number that was set.
Automatic address setting is in progress.
Alternating
Automatic address setting completed.
At time of automatic address setting, the number
of indoor units did not match the number that
was set. " " (when indoor units are operating)
Simultaneous
indication appears on the display.
Refer to "Table of Self-Diagnostic Functions and
Description of Alarm Displays."
Alternating
Note: indicates that the solenoid is fused or that there is
" "
a CT detection current failure (current is detected when
the compressor is OFF).
●
Remote controller display
Request concerning recording the indoor/outdoor
unit combination Nos.
After automatic address setting has been completed, be sure to
record them for future reference.
List the outdoor main unit system address and the addresses of
the indoor units in that system in an easily visible location (next
to the nameplate), using a permanent marking pen or similar
means that cannot be removed easily.
Example: (Outdoor) 1 – (Indoor) 1-1, 1-2, 1-3...
(Outdoor) 2 – (Indoor) 2-1, 2-2, 2-3...
These numbers are necessary for later maintenance. Please be
sure to indicate them.
Checking the indoor unit addresses
Use the remote controller to check the indoor unit address.
<If 1 indoor unit is connected to 1 remote controller>
1 Press and hold the button and
seconds or longer (simple settings mode).
2 The address is displayed for the indoor unit that is
connected to the remote controller.
(Only the address of the indoor unit that is connected to
the remote controller can be checked.)
3 Press the button again to return to normal remote
controller mode.
Individual Control of Solenoid Valve kit
How to change the setting for utilizing the solenoid valve
kit in the indoor unit in common.
Setting change may be necessary due to the type of connection
of the solenoid valve kit and indoor unit as shown below. Be
sure to change according to the following method.
Method 1 Method 1
Solenoid Solenoid Solenoid
valve kit valve kit valve kit
Indoor Indoor Indoor
Unit Unit Unit
Remote Remote
Controller Controller
Method 3
Solenoid Solenoid
valve kit valve kit
Indoor Indoor Indoor Indoor
Unit Unit Unit Unit
Remote Remote Remote
Controller Controller Controller
Chart of setting change according to each method
* An alarm will occur or the air conditioner will not operate
properly unless proper setting changes are performed.
Be sure to change the setting as follows.
is blinking
Shared
Change
solenoid
Combination necesasry
valve kit
YES/NO
YES/NO
Method 1 only NO NO
Method 2 included
YES YES
*method 3 excluded
Method 3 included YES YES
* 1 How to change the setting from the remote controller
Be sure to make a setting when utilizing the shared solenoid
valve kit by Method 2.
• When only utilizing the solenoid valve kit in common,
make a setting from the remote controller as described
below.
• Be sure to make a setting after auto address setting as
described below.
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button for 4
Method 2
Solenoid
valve kit
Indoor Indoor
Unit Unit
Remote
Controller
Method 3
Indoor Indoor
Unit Unit
Remote Remote
Controller Controller
Change of How to
indoor unit change
— —
Method 2 From indoor
only unit *1
All indoor
From PC *2
units