Navien NFC-175 Installation & Operation Manual page 95

11.4.2 Viewing Input and Output Status
To view the boiler's input and output status, press the Back button
( ) and the Menu button (
then select "2. Input/Output Status".
Rotate the Command dial (
items. Press the Command dial (
information.
Press the Back button ( ) to return to the previous screen or
menu.
Item
1. SH1 Themostat Space heating thermostat 1 input
Status status
2. SH2 Themostat Space heating thermostat 2 input
Status status
3. SH3 Themostat Space heating thermostat 3 input
Status status
External Recirculation thermostat input
4. Recirc. Input Status
status
5. Boiler Pump Status Boiler pump output status
6. Zone1 Pump Status Zone 1 pump output status
7. Zone2 Pump Status Zone 2 pump output status
8. Zone3 Pump Status Zone 3 pump output status
9. 3 way V/V Status 3 way V/V output status
10. Fill Valve Status AWS V/V output status
11. Ext Recirc. Pump External Recirculation pump output
Status status
12. HTL Input Status HTL input status
13. Dual Venturi
Dual Venturi output status
Status
) simultaneously for 3 seconds, and
) to switch between the information
) to select an item and view the
Description
Item
14. LWCO Input
LWCO input status
Status
15. Air Handler
Interface Output Air Handler Interface output status
Status
11.4.3 Setting the Operation Parameters
To set the boiler's operation parameters, press the Back button
( ) and the Menu button (
and then select "3. Parameter Settings".
CAUTION
Parameters must be set by a qualified professional with
an extensive understanding of the boiler system. Setting
parameters improperly may lead to property damage or injury.
In the password screen, rotate the Command dial (
numbers and places, and press the Command dial (
the password.
The factory default password is "1234".
Description
) simultaneously for 3 seconds,
) to change
) to enter
Operating the Boiler 95