Navien NHB H Series, Инструкция по установке и эксплуатации

Страница: 111 / 143

111 Operating the Boiler
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 ( ) to select a parameter
or to confirm after making changes.
Press the Back button ( ) to return to the previous
screen or menu.
Item Description
1. Supply MIN Set-
point
Set the space heating
supply minimum
temperature.
●
Setting range: 77°F
(25°C) – [MAX Set-point
– 36°F (20°C)]
●
Default: 104°F (40°C)
2. Supply MAX Set-
point
Set the space heating
supply maximum
temperature.
●
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)
3. Return MIN Set-
point
Set the space heating
return minimum
temperature.
●
Setting range: 68°F
(20°C) – [MAX Set-point
– 18°F (10°C)]
●
Default: 86°F (30°C)
4. Return MAX Set-
point
Set the space heating
return maximum
temperature.
●
Setting range: [MIN
Set-point + 18°F (10°C)]
– 158°F (70°C)
●
Default: 149°F (65°C)
Item Description
10. Zone V/V 2
Status
Zone 2 valve output
status
11. Zone V/V 3
Status
Zone 3 valve output
status
12. HTL Input Status HTL input status
13. Dual Venturi
Status
Dual Venturi output status
14. LWCO Input
Status
LWCO input status
15. Air Handler
Interface Output
Status
Air Handler Interface
output status
16. DHW Priority
Output Status
DHW priority output
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.