Navien NCB300-28K, Service Manual

Page: 31 / 108

30 System Details
4.4.6.2 Setting the Central Heating Temperature
To set the boiler’s central heating operation, press the Menu
button ( ).
Press the Plus button ( ) or the Minus button ( ) to switch
between the list items or to increase/decrease setting values.
4.4.6.3 Setting the DHW Temperature
To set the boiler’s DHW operation, press the Menu button ( )
twice.
Press the Plus button ( ) or the Minus button ( ) to switch
between the list items or to increase/decrease setting values.
●
Setting range: 30 – 65°C
●
Default: 50°C
4.4.6.4 Setting the ECO Mode
To set the boiler ‘s ECO Mode, press ECO button ( ). The ECO
icon( ) turns on when the ECO Mode is selected.
Item Description
1. ECO Mode Do not DHW Preheat
2. Non ECO Mode Always DHW Preheat
4.4.6 Accessing Basic Menu Items
In the Main Menu screen, you can view the boiler’s operating
conditions, configure the central heating and DHW
temperatures, and review error history. Press the Info button
( ).
4.4.6.1 Viewing Basic Information
To view information about the boiler, press the Info button ( ).
Press the Plus button ( ) or the Minus button ( ) to switch
between the information items.
Item Description
0. Supply Temp Heating supply temperature
1. Return Temp
Boiler return temperature
(Not Used)
2. DHW Temp DHW temperature
3. Water Flow DHW Water Flow ON/OFF
4. Outdoor Temp Outdoor temperature
5. K-Factor K-Factor valve
6. WWSD Temp
Warm Weather Shut Down
setting temp
7. WWSD On Diff
Warm Weather Shut Down On
Differential temperature