Navien NHB H Series Installation And Operation Manual page 111

Item
10. Zone V/V 2 Zone 2 valve output
Status status
11. Zone V/V 3 Zone 3 valve output
Status status
12. HTL Input Status HTL input status
13. Dual Venturi
Dual Venturi output status
Status
14. LWCO Input
LWCO input status
Status
15. Air Handler
Air Handler Interface
Interface Output
output status
Status
16. DHW Priority DHW priority output
Output Status status
11.13.3 Setting the Operation
Parameters
To set the boiler's operation parameters, press the
Back button ( ) and the Menu button (
simultaneously for 3 seconds, 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.
Description
)
In the password screen, rotate the Command dial
( ) to change numbers and places, and press the
Command dial ( ) to enter the password.
The factory default password is "1234".
After entering the parameter setting screen, rotate
the Command dial ( ) to switch between the
parameters or to increase/decrease setting values.
Press the Command dial (
or to confirm after making changes.
Press the Back button (
screen or menu.
Item
Set the space heating
supply minimum
temperature.
1. Supply MIN Set-
●
point
●
Set the space heating
supply maximum
temperature.
●
2. Supply MAX Set-
point
●
Set the space heating
return minimum
temperature.
3. Return MIN Set-
●
point
●
Set the space heating
return maximum
temperature.
4. Return MAX Set-
●
point
●
) to select a parameter
) to return to the previous
Description
Setting range: 77°F
(25°C) – [MAX Set-point
– 36°F (20°C)]
Default: 104°F (40°C)
Setting range: [Supply
MIN Set-point + 36°F
(20°C)] – 185°F (85°C)
(When used with
NHB-H boilers)
Default: 180°F (82°C)
Setting range: 68°F
(20°C) – [MAX Set-point
– 18°F (10°C)]
Default: 86°F (30°C)
Setting range: [MIN
Set-point + 18°F (10°C)]
– 158°F (70°C)
Default: 149°F (65°C)
Operating the Boiler 111