107
Operating the Boiler
2. Tap
Set
on the Test Mode menu. The Test Mode pop-up is
displayed on the screen.
Item
Description
1. FAN
Test the fan operation by manually
changing the fan speed.
Ɣ
From a stopped state, the fan speed
gradually increases and reaches the
top speed, and then the fan speed
decreases until the fan stops operating.
Ɣ
Tap
ON
or
OFF
to toggle the fan test
(ON -> OFF / OFF -> ON).
2. Boiler pump
Test the boiler pump operation.
Ɣ
The boiler pump is turned on as soon
as you enter the test mode.
Ɣ
Tap
ON
or
OFF
to toggle the pump
operation (ON -> OFF / OFF -> ON).
3. pump1
Test the pump1 operation.
Ɣ
The pump1 is turned on as soon as you
enter the test mode.
Ɣ
Tap
ON
or
OFF
to toggle the pump
operation (ON -> OFF / OFF -> ON).
4. pump2
Test the pump2 operation.
Ɣ
The pump2 is turned on as soon as you
enter the test mode.
Ɣ
Tap
ON
or
OFF
to toggle the pump
operation (ON -> OFF / OFF -> ON).
5. pump3
Test the pump3 operation.
Ɣ
The pump3 is turned on as soon as you
enter the test mode.
Ɣ
Tap
ON
or
OFF
to toggle the pump
operation (ON -> OFF / OFF -> ON).
6. dual venturi
Test the dual venturi operation.
Ɣ
The dual venturi is turned on as soon
as you enter the test mode.
Ɣ
Tap
ON
or
OFF
to toggle the dual
venturi operation (ON -> OFF / OFF ->
ON).
11.6.5 Setting the External Connection
To view and configure the external network connection, tap the
Set button (
) >
Ext Connection
on the screen.
Item
Description
1. Navi-Link
Turn on or turn off the remote
control capabilities via the Navi-Link
connection.
Ɣ
Setting range: ON/OFF
Ɣ
Default: OFF
2. Navien zone
controller
Turn on or turn off the Navien zone
controller.
Ɣ
Setting range: ON/OFF
Ɣ
Default: OFF
3. Manual Reset
Safety Switch
Select the manual reset safety switch
(contact) type.
Ɣ
Default: N-Open (Normal Open)
4. Auto Reset Safety
Switch
Select the Auto reset safety switch
(contact) type.
Ɣ
Default: N-Open (Normal Open)
11.6.6 Diagnosing the Boiler System
To run a series of test procedures for a system diagnosis:
1. Tap the Set button (
) >
Service
.
Summary of Contents for NHB Series
Page 120: ...120 Appendixes 12 6 Component Assembly Diagrams and Part Lists 12 6 1 Case Assembly NFB 301C...
Page 122: ...122 Appendixes 12 6 2 Case Assembly NFB 399C...
Page 124: ...124 Appendixes 12 6 3 Heat Exchanger and Waterway Assembly NFB 301C...
Page 126: ...126 Appendixes 12 6 4 Heat Exchanger and Waterway Assembly NFB 399C...
Page 128: ...128 Appendixes 12 6 5 Combustion Parts Assembly NFB 301C...
Page 131: ...131 Appendixes 12 6 6 Combustion Parts Assembly NFB 399C...
Page 134: ...Memo...
