Navien NCB-700-2S+/42K Service Manual page 40

Item
21. Service Notify Time
22. Service Notify Cycle
23. Low Water Pressure
24. Recirc Pump(DHW)
Usage
25. Recirculation Interval
Time
26. Recirculatin Sampling
Time
27. Recirculation off
Differential Temp
28. DHW Boost
29. Supply Boost Time
30. Flow Detection Delay
Time
31. Gas Compensation
setting
32. Factory Reset
33. P/W Change
If you use DHW boost mode, the boiler operating
Note
sound level could increase slightly.
Description
Set the time for service
notification.
Setting range: 30 – 3650 days
●
(10 years)
It can be set in 10 day
●
increments.
Default: 1820 days (5 years)
●
Set the service notification
according to the operating
times.
Setting range: 300 – 36500
●
cycles
It can be set in 100 cycle
●
increments.
Default: 18200 cycles
●
Set the lowest operating
pressure of the boiler.
Set a recirculation pump usage.
Set a recirculation interval time.
Set a recirculation sampling
time.
Set a recirculation off
differential temperature.
Turn of the DHW Boost
function.
Set the time that the burner
(CH) boost supply set
temperature.
Set the time that delays flow
detection sequence.
Adjust the gas usage estimates
to improve accuracy.
Initialise all parameter settings
(panel and main controller) to
factory default.
Change the parameter setting
password.
Press the Up button ( ) or the
Down button ( ) to change
numbers and places, and press
the OK button ( ) to save the
new password.
WARNING
Most Legionella can be sterilised in a few minutes in
●
water above 60°C.
If you enble the "Anti-Legionella" function, the boiler may
●
operate from 2–3 a.m. (Default). Adjust the opration time
if required.
If you enable the "Anti-Legionella" function, be careful
●
not to get burnt when you use DHW in the set time or
not sufficiently cooled (in 2 hours).
4.4.8.4 Diagnosing the Boiler System
To run a series of test procedures for a system diagnosis,
press the Back button ( ) and the Menu button (
simultaneously for 3 seconds, and then select "4. Test Mode".
Press the Up button ( ) or the Down button (
between the test procedures. Press the OK button (
test procedure.
During the test mode, the boiler stops combustion.
Note
Press the Back button ( ) to return to the previous screen or
menu.
)
) to switch
) to run a
System Details 39