![background image](http://html2.mh-extra.com/html/navien/ncb-24ldwe/ncb-24ldwe_installation-and-operation-manual_3646868049.webp)
O
perating the Boiler 49
Setting a New Password
Display
Description
Change password
This
m
enu
m
ay be used to set a new password to access the
para
m
eter setting
m
enu.
To set a new password:
1.
M
ove to [*.PSC] and press the EC
O
button. The current
password is displayed, with the first digit flashing.
2. Press the + (Up) or – (Down) buttons to change nu
m
bers.
3. Press the Su
mm
er/Winter button to change places.
4. When you are done setting the password, press the EC
O
button to save it. The new password is displayed on the
front panel for 3 seconds, before the boiler returns to the
para
m
eter setting
m
ode.
Note
I
f you do not press the EC
O
button in 10 seconds
after setting a new password, the new password is
auto
m
atically saved and [*.PSC] is displayed on the
front panel.
10.6 Resetting the Boiler
I
f an error
m
essage appears, reset the boiler to resolve the
proble
m
. To reset the boiler, press the Reset button.
I
f resetting the boiler does not solve the proble
m
, refer to the
Troubleshooting section of this
m
anual or contact Technical
Assistance Service.
Setting the LCD Back Light
This
m
enu
m
ay be used to set the status of LCD back light.
Ɣ
Default:
O
N
Display
Description
LCD back light
m
aintains
m
ini
m
u
m
brightness.
LCD back light is off when no
button is pressed.
Setting the Maintenance Time
Display
Description
M
aintenance ti
m
e
This
m
enu
m
ay be used to set the
m
aintenance ti
m
e.
Ɣ
Default: 0
Ɣ
Range: 0–999 days
Resetting All Parameters
Display
Description
Do not reset para
m
eters (No)
Reset all para
m
eters (Yes)
This
m
enu
m
ay be used to reset all the para
m
eters to their
factory default settings.
To reset all para
m
eters:
1. Press the + (Up) or – (Down) buttons to change the display
to [YES].
2. Press the EC
O
button.
3. When [No] appears on the display again, all para
m
eters have
been reset.
Summary of Contents for NCB-24LDWE
Page 65: ...Appendices 65 12 4 Ladder Diagram 3 15A...
Page 69: ...Memo...
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