Navien NHB-055 Installation & Operation Manual page 84

Low Burning Time
Display
psi
S R O/R
Default: 1 min
Range: 1–20 min
Burning Acceleration Time
Display
psi
S R O/R
Default: 3 min
Range: 0–20 min
Setting the Space Heating Min Heat Capacity
Display
S R O/R psi
This menu is used to configure the desired space heating
minimum capacity. When the boiler operates in Normal mode, the
minimum space heating capacity is limited to the set value (%).
Default: Minimum heat performance available for the unit (%)
Range: Space heating Min capacity (%) – [space heating Max
capacity -20]%
Setting the Space Heating Min Heat Capacity
Display
S psi
R O/R
This menu is used to configure the desired DHW minimum
capacity. When the boiler operates in Normal mode, the minimum
DHW capacity is limited to the set value (%).
Default: Minimum heat performance available for the unit (%)
Range: DHW Min capacity (%) – [DHW Max capacity -20]%
84 Operating the Boiler
Description
Low burning time during initial
heating
Description
Burning acceleration time to CH Max
during initial heating
Description
Space heating Min heat capacity (%)
Description
DHW Min heat capacity (%)
Setting the Warm Weather Shut-down
Display
Warm weather shut-down
temperature
S R O/R psi
Default: OFF
Range: OFF, 50°F (10°C) – 104°F (40°C)
Display
Warm weather shutdown ON
differential
S
R O/R psi
Default: 5°F (3°C)
Range: 0°F (0°C) – 36°F (20°C)
Setting the Cascade Staging Adjustments
Display
Increase or decrease the 70% default
Staging ON capacity (40-100%
range)
S R O/R psi
Default: 0%
Range: -30 – +30%
Display
Increase or decrease the 30% default
Staging OFF capacity (20-40% range)
S R O/R psi
Default: 0%
Range: -10 – +10%
Setting the Navi-Link Connection
Display
Navi-Link Connection is enabled
(ON)
psi
S R O/R
Navi-Link Connection is disabled
(OFF)
psi
S R O/R
Description
Description
Description
Description
Description