How To Set The Temperature - Rinnai RUR98i Installation And Operation Manual

How to Set the Temperature

This water heater requires a minimum flow rate to operate. This rate can be found on the specification page in
this manual. In some cases when you are not getting hot water or if the water alternates between hot and cold,
it is due to the water flow being below or close to the minimum flow rate. Increasing the flow rate should
resolve these problems in these cases.
If you are experiencing issues with higher temperature settings, then reduce the temperature setting. Selecting a
temperature closer to that which is actually used at the faucet will increase the amount of hot water being
delivered to the faucet, due to less cold water mixing at the fixture.
DANGER
Adjusting the Temperature
1.Ensure the controller is "ON" and that the Priority
icon is displayed.
2.Press the "UP" or "DOWN" buttons as needed to set
the controller to the desired temperature.
-The temperature will increase by 2 degree
increments between 98-110 F. Once above 110 F
the temperature will change by 5 degree incre-
ments.
3.Proceed to open the tap to allow water to flow
through the unit allowing combustion to begin.
-During the call for hot water while the burners are
active, the "Combustion" icon will appear on the
screen.
Combustion
Icon
Water temperatures over 125° F (52° C) can cause severe burns or scalding
resulting in death.
Hot water can cause first degree burns with exposure for as little as:
3 seconds at 140° F (60° C)
20 seconds at 130° F (54° C)
8 minutes at 120° F (49° C)
Children, disabled, or elderly are at highest risk of being scalded.
Feel water before bathing or showering.
NOTICE
NOTICE
NOTICE
NOTICE
Hot Water
Temperature
KBP Series Manual
While any hot water is being provided,
the temperature setting can only be
adjusted between 98° F and 110° F.
Check local codes for the maximum water
temperature setting allowed when used
in nursing homes, schools, day care
centers, and all other public applications.
If power is interrupted and a newly
installed unit with a controller has not
been powered for at least 6 hours then
the temperature will return to the default
setting of 104° F (40° C).
There may be a variation between the
temperature displayed on the
temperature controller and the
temperature at the tap due to weather
conditions or the length of pipe to the
water heater.
59