Rinnai Water Heater REU-V2520FFUD - Manual (Page 9)

HOT HOT
COLD COLD
ON! ON!
NOTE: TEMPERATURE CANNOT BE
ADJUSTED EXCEPT BETWEEN 98°F AND 110
°F WHEN ANY HOT WATER TAP IS OPEN.
NOTE: CHECK LOCAL CODES FOR
THE MAXIMUM WATER TEMPERATURE
SETTING ALLOWED WHEN USED IN
NURSING HOMES, SCHOOL, DAY CARE
CENTERS, AND ALL OTHER PUBLIC
APPLICATIONS.
NOTE: If a newly installed unit has not
been powered for at least six hours then
the temperature will return to the default
setting if power is interrupted.
CHECK WATER
TEMPERATURE BEFORE
ENTERING SHOWER OR
BATH.
There is a hot water
scald potential if the
thermostat is set to high.

Rinnai America FF Models
B A S I C O P E R A T I O N
To operate the Rinnai Water Heater
simply turn any hot water tap on.
This will automatically light the burner
providing hot water at the preset
temperature. If the optional remote
controller(s) have been installed, the
red “IN USE” indicator will glow on
all remote controller(s).
Adjusting Temperature
1
To take control of the Rinnai Water Heater
all hot water taps must be closed. Press
the "Priority button" on the Controller you
want to set the temperature with, and
the green "Priority" indicator light will
The outlet water temperature of the Rinnai
Water Heater can only be adjusted by
the user using the remote controller(s).
To adjust the setpoint temperature of
the Rinnai Water Heater, all hot water
taps must be closed, and all circulating
pumps turned off (where applicable). The
temperature displayed on this remote
controller will also be displayed on all
other remote controller(s).

Simply press the or button
until the required temperature is
displayed on the Digital Monitor.

glow. This indicates that the Rinnai Water
Heater is ready to supply hot water at
the set temperature as soon as a tap is
opened.
Note: Rinnai Water Heater will not provide
hot water instantly at the hot water
fixtures. Any cold water existing in the hot
water lines must be purged first.