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Procedure 3: writing setting data in EEPROM
(The EEPROM of the service P.C. board has been set to the factory default values.)
1
Push the + + buttons simultaneously and
hold for at least 4 seconds. (This number
corresponds to the same number shown on the
Remote Controller Operation Diagram.)
(Under UNIT No.,
ALL
is displayed.)
At the same time, the CODE No. (DN code)
10
is displayed.
2
Push the
UNIT LOUVER
button (left side of the button) to
display the indoor unit (including Hot Water Module)
No. one by one in the group control. Specify the
indoor unit (including Hot Water Module) No. whose
service PC board was replaced.
(This operation is not available if the UNIT No. shows
ALL
ALL
ALL
ALL
ALL
.)
3
The
button allows you to moved the CODE No.
(DN code) up / down by one place.
4
First, set the type and capacity codes of the hot water module.
(Changing the type and capacity codes in EEPROM overwrites the factory default settings.)
(1) Set the CODE No. (DN code) to
10
(no change)
(2) Use the
button to select the type.
(0060 is for the hot water module type.) - See the CODE No. list.
(3) Push the button. (The display should change from flashing to steady.)
(4) Use the
button to set the CODE No. (DN code) to
11
.
(5) Use the
button to set the capacity code.
(For example, 0011 is for the 027 type.) - See the CODE No. list.
(6) Push the button. (The display should change from flashing to steady.)
(7) Push the button to bring the system back to normal off state.
5
Next, write any setting changes made on-site after installation, such as address settings, in
the EEPROM. Perform the tasks specified in step 1 again.
6
Use the
button to set the CODE No. (DN code) to
03
03
03
03
03
(To set central control address)
7
Check the value displayed with the value jotted down in Procedure 1 and information
proved by the customer.
(1) If there is a discrepancy, change the setting in accordance with the jotted-down value, and push the
button.
(The display should change from flashing to steady.)
(2) If there is no discrepancy, do nothing.
8
Use the
button to change the CODE No. (DN code).
Again, check the value, and change the setting if necessary.
9
Repeat steps 6 and 7 until all the settings are checked.
10
When finished, push the button to bring the system back to normal off state.
In the case of group operation, turn the unit off, reconnect the indoor-indoor group control wiring and
CN41 connectors, and turn on all the indoor units (including Hot Water Module).
(It takes the system about 1 minute to become responsive to remote controller operation.)
* CODE No. (DN code) go from
01
to
FF
with a few gaps along the way.
If you realize you have wrongly corrected a certain setting after pushing the button, you can recover the
initial value by pushing the button, provided that the CODE No. (DN code) is yet to be changed.
