Navien NCB500-2S/37K, Руководство по обслуживанию

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36 System Details
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 ( ) to switch
between the test procedures. Press the OK button ( ) to run a
test procedure.
Note
During the test mode, the boiler stops combustion.
Press the Back button ( ) to return to the previous screen or
menu.
Item Description
1. Fan Motor
Test the fan operation.
From a stopped state, the fan
speed gradually increases and
reaches the maximum speed
at 6500 RPM, and then the fan
speed decreases until the fan
stops operating.
Note
Except for the Power
button ( ), the
buttons do not work
during fan motor test
mode.
2. Circ Pump (Heating)
Test the boiler pump operation.
On (10 seconds) -> Off (5 seconds)
-> On (10 seconds) for 5 boiler
pump operation cycles
Note
Except for the Power
button ( ), the
buttons do not work
during boiler pump
test mode.
Item Description
19. Service Notify Cycle
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
20. Low Water Pressure
Set the lowest operating
pressure of the boiler.
21. Recirc Pump(DHW)
Usage
Set a recirculation pump usage.
22. Recirculation Interval
Time
Set a recirculation interval time.
23. Recirculation Sampling
Time
Set a recirculation sampling
time.
24. Recirculation off
Differential Temp
Set a recirculation off
differential temperature.
25. DHW Boost
Turn of the DHW Boost
function.
26. Supply Boost Time
Set the time that the burner
(CH) boost supply set
temperature.
27. Flow Detection Delay
Time
Set the time that delays flow
detection sequence.
28. Gas Compensation
setting
Adjust the gas usage estimates
to improve accuracy.
29. Factory Reset
Initialise all parameter settings
(panel and main controller) to
factory default.
30. P/W Change
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.
Note
●
After enabling the “18. Anti-Legionella” function,
enable the “19. Anti-Legionella day” and “20. Anti-
Legionella time” functions to set the time and day
of the week for Anti-Legionella.
●
If you use DHW Boost mode, preheating will be on
work for a few seconds after DHW is stopped.