Additional settings of system controller
Following setting can be changed in addition to the system settings.
When determining whether or not to change a particular setting, please consult
with the customer first.
Setting Procedure (example to change Item No. 1A)
(1) Turn the water heater off by pressing the Power ON/OFF Button on the
remote controller.
(2) Turn OFF the power supply (disconnect electrical power to all heaters and
system controller), then turn ON the power supply (reconnect electrical
power to all heaters and system controller) and wait 10 seconds before
proceeding to step (3).
(3) Within the first ten minutes of connecting electrical power, before turning
on the Power ON/OFF Button, press the ▲/▼ Buttons on the remote
controller and hold until the display blinks "99". If "99" does not blink on the
remote controller, disconnect electrical power to all heaters and system
controller and try again.
(4) Use the ▲/▼ Buttons on the remote controller to scroll to the item number
"1A" on the column of the item.
(5) Press the ENTER Button, "Item number" stops blinking and "Data state
(OFF or ON)" will start blink.
Use the ▲/▼ Buttons on the remote controller to change OFF ←→ ON.
(6) Change "1A" from OFF to ON.
* Do not adjust any other items!
(7) When the items has been set correctly, press the ENTER Button, "Data
state (ON)" stops blinking and "Item number" will start blink. Confirm the
setting by pressing and holding both the ▲/▼ Buttons on the remote
controller until the controller emits a beeping noise.
The new setting will be lost if this is not done.
(8) Disconnect Power to all heaters and system controller in the multi-unit system.
Wait 10 seconds or more, and reconnect power.
- Item No. 1A
By factory default, the remote controller alarm will sound when a failure of the
system controller or any water heater in the system has occurred.
However, this setting can be changed so that the alarm sounds only when the
entire system is down.
- Item No. 19
When multiple units are connected to the system controller, two units fire
upon startup as the factory default.
However, this setting can be changed so that only one unit fires upon startup.
List of settings
Item #
Data indication
19
OFF (Two units fire at startup)*
ON (One unit fires at startup)
1A
OFF (Alarm for any system error)*
ON (Alarm only for system down error)
* Factory Default Settings
Power ON/OFF Button
▲/▼ Buttons
Enter Button
<Remote controller (RC-9018M)>
─18─