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VA Series Indoor LS Manual 5
The Rinnai water heater is one of the most advanced
water heaters available. It provides a continuous
supply of hot water at a preset temperature. This
appliance is direct vent where air is brought in from the
outside and combustion gases are exhausted to the
outside.
While electricity, water, and gas supplies are
connected, the Rinnai water heater produces hot water
whenever a hot water tap is open.
Ignition is electronic. There is no pilot light consuming
gas while the water heater is not being used. The gas
burner lights automatically when the hot water tap is
opened and goes out when the tap is closed.
Installation of the temperature controller is highly
recommended. The temperature controller can set the
temperature within a specific range and can provide
error codes to diagnose any problems.
The temperature of the outgoing hot water is constantly
monitored. The Rinnai water heater may adjust the
water flow in order to maintain the temperature setting.
The water flow may vary from summer to winter due to
the difference in ground water temperature.
Description of Operation
Features Available on Temperature Controllers
The MC-91 temperature controller is supplied with the appliance. Additional functions are available through the
use of optional controllers.
Operating Instructions
Features
MC-91
MC-100
BC-100
MC-502
Description
Call
Sends a short series of beeps to all controllers in the system. It is
not an intercom.
Clock
12 hour AM/PM clock.
Function
Used on this model to set the clock or sound volume.
In Use Indicator
Indicates that hot water is being supplied (i.e. a hot water tap is
open).
ON/OFF Button
Used to turn the water heater ON or OFF.
Power Save
Allows the temperature controller to be in an energy saving
mode.
Priority Button /
Indicator
Indicates that this controller is setting the temperature . Priority
can be switched to another controller by pressing its Priority
Button when no hot water is running.
Sound Volume
Used to adjust the voice prompt volume.
Temperature Display
Shows the temperature setting.
Thermostat
Increases or decreases the temperature setting.
Water Smart / Bath Fill
Button / Indicator
Used to select the Water Smart / Bath Fill Function to fill a bath
with a predetermined volume of water.
Water Volume
Used to select the water volume for the Water Smart / Bath Fill
Function.
MCC-91
Error Codes
When a fault is detected an error code flashes at the temperature
display on models MC-91, MCC-91, and MC-502; and flashes at
the clock display on models MC-100 and BC-100.