[3] Writing the setting data to EEPROM
The settings stored in the EEPROM of the P.C. board for indoor unit servicing are the
∗In the group control operation, the unit No. displayed for the first time is the header unit No.
At this time, the CODE No. (DN) shows “”. Also, the fan of the indoor unit selected starts its operation and the swing operation starts if it has the louvers.
(The unit No. “
” is displayed if the
Step 2 Every time when 
button is pushed, the indoor unit No. in the group control operation are displayed in order.
(The settings stored in the EEPROM of the P.C. board for indoor unit servicing are the
Specify the indoor unit No. with its P.C. board replaced to the P.C. board for indoor unit servicing. (You cannot perform this operation if “
” is displayed.)
Step 3 Select the CODE No. (DN) can be selected by pushing the 
/ 
button for the temperature setting. Step 4 Set the indoor unit type and capacity.
The
1.Set the CODE No. (DN) to “”. (without change)
2.Select the type by pushing 
/ 
buttons for the timer setting.
(For example,
3.Push SET button.
(The operation completes if the setting data is displayed.)
4.Change the CODE No. (DN) to “” by pushing 
/ 
buttons for the temperature setting.
5.Select the capacity by pushing 
/ 
buttons for the timer setting. (For example, 80 Type is set to “0012”. Refer to table 3)
6.Push SET button.
(The setting completes if the setting data are displayed.)
7.Return to the normal stop status by pushing TEST button.
(Approx. 1 minute is needed to start operation of the remote controller.)
Step 5 Write the
Step 6 Change the CODE No. (DN) to “” by pushing 
(this is the setting for the filter sign lighting time.)
/ 
buttons for the temperature setting.
Step 7 Check the setting data displayed at this time with the setting data put down in [1].
1.If the setting data is different, modify the setting data by pushing 
/ 
buttons for the timer setting to the data put down in [1].
The operation completes if the setting data is displayed. | <Fig. 1 | ||
2. If the data is the same, proceed to next step. |
|
| |
Step 8 Change the CODE No. (DN) by pushing | / | buttons for the |
|
temperature setting. As described above, check the setting data and modify to the data put down in [1].
Step 9 Repeat the steps 6 and 7.
Step 10 After the setting completes, push TEST button to return to the normal stop status. (It takes approx. 1 min until the remote control opera- tion is available again.)
∗The CODE No. (DN) are ranged from “” to “..”. The CODE No. (DN) is not limited to be serial No.
Even after modifying the data wrongly and pushing SET button, it is possible to return to the data before modification by pushing CL button if the CODE No. (DN) is not changed.
<Fig. 2 EEPROM layout diagram>
3 6 5 1 | 4 2 |
The EEPROM (IC10) is attached to the IC socket. When detaching the EEPROM, use a tweezers, etc. Be sure to attach the EEPROM by fitting its direction as shown in the figure.
∗Do not bend the IC lead when replacing.
EEPROM(IC10)
MCC-1402
Match the notched parts of IC socket and
EEPROM and then put in.
Notch
IC socket | Notch | EEPROM |
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