Rinnai RHFE-1004FA - Manual (Page 26)

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ADDITIONAL CUSTOMER OPERATING INFORMATION
IGNITION
Make certain the heater is connected into both the gas
and the electric power.
Depress the ignition ON/OFF button slowly and firmly.
When you release the ignition ON/OFF button the
‘LED Display will illuminate, the spark will ignite the main
burner and the Combustion fan will begin to run. If the
heater does not ignite within 15 seconds the spark will
stop and the ‘LED Display will show Error Code.
Turn off unit and repeat ignition operation.
This heater has an automatic ignition system, when the
main burner has lit, the combustion Lamp will glow red,
and the spark will stop. There may be a smell of
burning dust or oil the first time the heater is lit or when
the heater has been out of operation for a long time, this
is normal.You may need to repeat the ignition operation
the first time the heater is plugged in, due to air in the
gas line.
TEMPERATURE CONTROL
The thermostat automatically modulates the burner and
the fan to maintain the room temperature which you
have selected.
To change the room temperature, simply adjust the
temperature control buttons until the desired setting is
indicated.
The temperature range from LO to HI is about 55°F
(12°C) to 122°F (50°C). Temperature control may be
affected by the location of the heater.
TEMPERATURE LEVEL
COMBUSTION INDICATOR
TEMPERATURE CONTROL