Service Manual

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Step 4 Write the on-site setting data to the EEPROM, such as address setting, etc. Perform the steps 1 and 2

above again.

Step 5 Change the CODE No. (DN) to “

” by pushing / buttons for the temperature setting.

(this is the setting for the filter sign lighting time.)

Step 6 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.

2. If the data is the same, proceed to next step.

Step 7 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 8 Repeat the steps 6 and 7.

Step 9 After the setting completes, push

TEST

button to return to the normal stop status.

(It takes approx. 1 min until the remote control operation 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

button if the CODE No. (DN) is not changed.

<Fig. 2 EEPROM layout diagram>

The EEPROM (IC503) 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.

IC503

EEPROM

Cut out

IC socket