4.4.3 Turning the Boiler On or Off
To turn the boiler on or off, press the [Power] button for
0.3 seconds.
MODE
If the unit is experiencing an error the error code will continue to
display on the front panel even if the unit is turned OFF.
Item Description Display
Power
ON
Normal
Operating
mode with
Power turned
On
When the temperature of the
present supply water is 120°F
and the water pressure is 12.3psi
(Fahrenheit specification)
5 sec flashing
psi
When the temperature of the
present supply water is 60.0°C
and its water pressure is 12.3psi
(Celsius specification)
5 sec flashing
psi
Item Description Display
Power
OFF
Off status with
power Off
All displays off except status icons
(the status icon is shown normally
according to function status)
* When the power is first applied, please turn the panel segments and icons
on for 3 seconds (in order to check LCD defect)
* The firmware version of panel will be displayed for 2 seconds after
3 seconds from power application.(ex 1.0
→
P.V.1.0)
NOTE
If the Air purge is operating, the Segment repeats to display
‘AIR’ for 5 seconds and water pressure for 5 seconds.
When displaying the water temperature of the space heating
supply, the supply or return water icon flashes, depending on
the space heating control mode
4.4.4 Normal Operation
1. Enter <Normal Operating mode> by pressing the [Power]
button for more than 300ms at <Power Off mode>
2. The Boiler will display the temperature and pressure of present
supply water at 5 second intervals.
3. When displaying the temperature of present supply water (for
5 seconds) , the Supply water Control and Return Water Control
icons flash according to the Heating Control mode.
4. The Psi icon flashes when displaying the water pressure (for
5 seconds)
5. The Error icon flashes at 1 second intervals when a Level 1 error
occurs.
6. Pressing the [+] or [-] button briefly when a Level 1 error occurs
will convert the Boiler to <Level 1 Error Display mode>.
<Level 1 Error Display mode> displays the error code and
returns to <Normal Operating mode> after 5 seconds. When
the error is released during <Level 1 Error Display mode>, the
Boiler will convert to <Normal Operating mode>.
However, the Boiler will not accept any input from the button
during <Level 1 Error Display mode>.
7. For a Level 1 error, pressing Auto Release or [Reset] button
once will release the error after displaying ‘RST’ for 3 seconds, if
the Boiler meets the conditions to release the error.
8. The Boiler operates normally during a Level 1 error.