Table of Setting Items
Display
Power ON/OFF Button
FLOW METER ALARM SET Button
Setting Button
Remote Controller
Setting Procedure
1. Turn the water heater off by pressing the Power ON/OFF Button on the remote controller and wait 10 seconds or more.
2. Disconnect, then reconnect electrical power to all the water heaters.
3. Press the FLOW METER ALARM SET Button and hold it in for 2 seconds or more.
4. Press the FLOW METER ALARM SET Button until the remote controller displays item number "12".
5. Press and hold the UP (▲) button for more than 5 seconds to change the display units to " [°F/gal] ".
When set to [°F/gal], the display shows below.
6. Press and hold the DOWN (▼) button for more than 5 seconds to change the display units to " [°C/L] ".
When set to [°C/L], the display shows below.
7. To confirm the setting, turn the water heater on by pressing the Power ON/OFF Button on the remote controller.
8. Wait 15 seconds or more.
9. Turn OFF the power supply (disconnect electrical power to all heaters), then turn ON the
power supply (reconnect electrical power to all heaters).
10. Adjusting the Maximum Output Temperature (Page 25) and set temperature.
Item No.
Item
Defaults Setting
12
Celsius/Liter
or
Fahrenheit/Gallon
display mode.
°F/gal
(Fahrenheit/Gallon)
°C/L
(Celsius/Liter)
Change the way the units of temperature and flow rate are displayed on the screen (standard vs. metric).
When using remote controller RC-7649M, select “[°F/gal] or [°C/L]” as following steps.
The default setting is “[°F/gal]”
Note: In this case, even though the printed unit on the Remote Controller is [°F/gal], the displayed number on the
display means [°C/L] and the water heater will be working under [°C/L].
Procedure for changing from [°F/gal] to [°C/L]
Adjusting the Temperature Display
Note: The setting must be done within the first 10 minutes of connecting electrical power to all the water heaters.
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