Navien NHB-055 Service Manual page 55

Item
(W) Setting of DHW
Mode – Boiler
Pump
(X) Setting of DHW
Mode – System
Pump
(Y) Setting of CH
Mode – DHW
Pump
(Z) Setting of heat
exchanger
protection level
(1) Low Burning Time
(2) Burning
Acceleration Time
Version 1.0
Setting of Boiler Pump On / Off at DHW Mode
Setting range
ON / OFF
Setting of System Pump On / Off at DHW Mode
Setting range
ON / OFF
Setting of DHW Pump On / Off at DHW Mode during heating in case of
simultaneous request of heating and warm water.
Setting range
ON / OFF
Setting of heat exchanger protection level.
Setting range
0 ~ 4
Setting of low load burning time at the time of initial heating
Setting range
1 ~ 20 min
Setting of rising time to CH Max calorie at the time of initial heating.
Setting range
1 ~ 20 min
Description
In case of Boiler Pump Off
Default
In case of Boiler Pump On
OFF
In case of System Pump Off
Default
In case of System Pump On
OFF
In case of DHW Pump Off
Default
In case of DHW Pump On
OFF
In case of heat exchanger
protection function being 0.
Default
4
Low Burning Time 15 minutes
Default
1 min
Burning Acceleration Time 10
minutes
Default
3 min
Display
NHB Service Manual 55