Navien NHB H Series, Инструкция по установке и эксплуатации

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115 Operating the Boiler
Item Description
6. Number of Oper-
Unit
The number of units
currently operating in the
cascade system.
7. Cascade Info.
View the operating status
of individual units in the
cascade system.
8. Vent Type Setting
If not in the cascade
system, the default
setting is Individual Vent.
Note
In the cascade
system, the
default setting is
Common Vent.
9. Cascade Min-
Operation Unit
Set the minimum number
of the operation units for
the cascade system.
●
Setting range: 1 – 16
●
Default: 1
Note
Sub units of a
cascade system
cannot use this
item.
11.13.5 Setting the External Connection
To view and configure the external network
connection, press the Back button ( ) and the
Menu button ( ) simultaneously for 3 seconds,
and then select “5. External Connection”.
Rotate the Command dial ( ) to switch between
the parameters or to increase/decrease setting
values. Press the Command dial ( ) to select a
parameter or to confirm after making changes.
Item Description
2. Cascade System
Removal
Select this option on the
Main unit of a cascade
system to end cascade
operation.
●
Enter Cascade system
setting mode to
reassign IDs and begin
a cascade system again.
●
If a Sub unit
has a network
communication
problem, select this
option on the Sub
unit to exclude the
individual unit from the
cascade system.
3. Cascade Init-
operation Unit
Set the initial number of
activated boilers.
●
Setting range: 0 – 16
●
Default: 0
Note
Sub units of a cascade
system cannot use this
item.
4. Cascade ON HC
Offset
Adjust the staging of
boilers to be added to the
system load.
●
Setting range: - 20% –
+20%
(60 – 100% load)
●
Default: 0 (80% load)
Note
Sub units of a cascade
system cannot use this
item.
5. Cascade OFF HC
Offset
Adjust the staging of
boilers to be removed
from the system load.
●
Setting range: - 10% –
+10%
(20 – 40% load)
●
Default: 0 (30% load)
Note
Sub units of a cascade
system cannot use this
item.