Navien NFB Series Installation & Operation Manual page 94

Item
5. Cascade OFF HC
Offset
6. Number of Oper-
Unit
7. Cascade Info.
8. Vent Type Setting
11.4.5 Setting the External Connection
To view and configure the external network connection, press the
Back button ( ) and the Menu button (
seconds, and then select "5. External Connection".
Rotate the Command dial (
or to increase/decrease setting values. Press the Command dial
( ) to select a parameter or to confirm after making changes.
Press the Back button (
menu.
Item
1. NaviLink Connect
94 Operating the Boiler
Description
Adjust the staging of boilers to be
removed from the system load.
Setting range: - 10% – +10%
●
(20 – 40% load)
Default: 0 (30% load)
●
The number of units currently
operating in the cascade system.
View the operating status of individual
units in the cascade system.
Set the type of ventilation.
Default: Common vent
●
) simultaneously for 3
) to switch between the parameters
) to return to the previous screen or
Description
Turn on or turn off the remote
control capabilities via the NaviLink
connection.
Setting range: On/Off
●
Default: Off
●
11.4.6 Diagnosing the Boiler System
To run a series of test procedures for a system diagnosis, press the
Back button ( ) and the Menu button (
seconds, and then select "6. Test Mode".
Rotate the Command dial (
procedures. Press the Command dial (
Press the Back button ( ) to return to the previous screen or
menu.
Item
Test the fan operation by manually
changing the fan speed.
From a stopped state, the fan speed
●
gradually increases and reaches
1. Fan Motor the top speed, and then the fan
speed decreases until the fan stops
operating.
Rotate the Command dial (
●
or stop the fan test.
Test the boiler pump operation.
The boiler pump is turned on as soon
●
as you enter the test mode.
2. Boiler Pump
Press the Command dial (
●
toggle the pump operation (On ->
Off / Off -> On).
Test the system (zone 3) pump
operation.
The system (zone 3) pump is turned
●
3. System (zone3) on as soon as you enter the test
Pump mode.
Press the Command dial (
●
toggle the pump operation (On ->
Off / Off -> On).
) simultaneously for 3
) to switch between the test
) to run a test procedure.
Description
) to run
) to
) to