Rinnai REU-1110FFU(F)-E, Installation And User Manual

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16
HOT WATER SUPPLY OPERATION
Ignition.
Press ON/OFF Button of control panel to turn on unit and the display will light up. When a
hot water tap is opened the water flow sensor revolves and sends a pulse signal to the print-
ed circuit board (PCB). When the PCB detects water flow it begins the ignition process with
the combustion fan motor starting first. Once the air proving is made the main solenoid valve
and change
- over solenoid valves are opened; the burner is lit by the sparking igniter.
Temperature Setting.
On the control panel, with the water temperature control buttons the outlet temperature can
be set from 35°C
to 60
℃
. Temperature can not be set above 48
℃
while hot water is in use.
Standby.
When the hot water tap is closed the PCB no longer receives a pulse signal from the water
flow sensor. The PCB shuts the main solenoid valve
and change - over solenoid valves and
the burner extinguishes. Fan performs post ventilation.
OPERATION PRINCIPLE