71
Setting Button
(Switching Indication)(Changing Data No.)
Operation Button
Display
(Data No.)
Remote Controller (Optional for NR50-OD / NR66 (-SV,-OD) / N-0531S (-OD), NR71 (-SV,-OD) / N-0631S (-OD))
RC-7649M
Displaying Maintenance Monitors
<Display Procedure>
1. Press and hold both the up [
] and down [ ] setting buttons simultaneously for more than two seconds.
This can be done regardless of whether the power has been turned on or the unit is operating.
<Indications>
1. The maintenance monitor data no. will appear on the display for two seconds, and then the data will appear.
2. In order to switch to other maintenance monitor data, press either the up or down button once. The data no.
will then reappear, then dierent data nos. can be selected using the up [
] and [ ] down buttons. When
the maintenance monitor data no. is changed, the data no. will be displayed for two seconds, after which the
data will appear.
3. With the remote controller in maintenance mode, the hot water set temperature and ow meter alarm cannot
be adjusted.
<Returning to Normal Mode>
1. For releasing the indication, press and hold both [
] and [ ] of the setting button simultaneously more than
two seconds, or leave it alone for more than 10 minutes.
<Clearing Error Codes from Memory>
When the power is OFF, press and hold the down [
] button for more than 5 seconds.
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