![background image](http://html2.mh-extra.com/html/navien/ncb-24ldwe/ncb-24ldwe_installation-and-operation-manual_3646868043.webp)
O
perating the Boiler 43
4. Press the EC
O
button and enter your 4-digit password. Use
the + (Up) or – (Down) buttons to increase or decrease
nu
m
bers and the Su
mm
er/Winter button to
m
ove between
digits.
5. When you are finished, press the EC
O
button.
6. Press the + (Up) or – (Down) buttons to
m
ove to a para
m
eter
setting, and then press the EC
O
button to enter the
Para
m
eter Edit
m
ode.
7. Press the + (Up) or – (Down) buttons to change the
para
m
eter value.
8. When you are finished, press the EC
O
button to save the
settings.
9. To exit the Special Para
m
eter
m
ode, press the Reset button.
Note
Ɣ
I
f you enter an incorrect password 10 ti
m
es or
m
ake
no inputs for 5
m
inutes, the boiler will return to the
Nor
m
al
m
ode.
Ɣ
To return to the previous
m
ode, press the Reset
button.
Ɣ
The Factory default password is “1234”.
Ɣ
I
f you
m
ake no inputs for 10 seconds in the
Para
m
eter Edit
m
ode, the current para
m
eter value
will be saved auto
m
atically.
Ɣ
Press and hold the Reset button in Para
m
eter Edit
m
ode for 5 seconds to reset individual para
m
eters
to their default values.
Ɣ
When you reset one of the following para
m
eters,
the corresponding para
m
eter will be reset
auto
m
atically:
- Supply absolute
MI
N or
M
AX
- Return absolute
MI
N or
M
AX
- Lowest
O
utdoor Te
m
perature or Highest
O
utdoor
Te
m
perature
10.5 Setting the Parameters
You can
m
odify para
m
eter settings for boiler operations, such
as the space heating and DHW te
m
perature ranges, in different
operating conditions. Follow the instructions below to enter the
Special Para
m
eter
m
ode and change para
m
eter settings.
CAUTION
Para
m
eters
m
ust be set by a
q
ualified professional with
an extensive understanding of the boiler syste
m
. Setting
para
m
eters i
m
properly
m
ay lead to property da
m
age or
injury.
1. Press the Power button and turn off the boiler.
2. Press and hold the EC
O
and Su
mm
er/Winter button at the
sa
m
e ti
m
e for 5 seconds to enter the Special Para
m
eter
m
ode.
3. You will be asked to enter a password (“PASS” is displayed).
The factory default password is “1234”.
Summary of Contents for NCB-24LDWE
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