Navien NHB-110 User's Information Manual

About the Boiler 7
2.3 The Front Panel
The front panel allows you to adjust the temperature and view the operating status or error codes. Remove the protective sheet from the front
panel before using it.
2.3.1 Icons and Digital Display
The icons and digital display on the front panel provide important
information required for the boiler’s operation. Refer to the
following table for detailed information.
a
Space heating mode
f
S
Supply water control
Indicates space heating mode operation. Indicates supply water control status.
b
Error
g
R
Return water control
A code will appear on the display. Indicates return water control status.
c
Combusting
h
O/R
Outdoor Reset
Indicates burner operation. Indicates outdoor reset operation.
d
Master Unit
i
DHW Mode
Indicates Cascade mode operation. Indicates DHW priority mode operation.
e
Digital Display
j
psi
Psi
Indicates water pressure.
b
a
f
g
h
c
d
e
i
j

Navien NHB-110 Specifications

General

Category	Boiler
Brand	Navien
Model	NHB-110
Maximum Input	110, 000 BTU/h
Efficiency	95% AFUE
Weight	75 lbs
Vent Type	Direct Vent
Fuel Type	Natural Gas or Propane
Heat Exchanger Material	Stainless Steel
Water Connection Size	3/4 inch
Gas Connection Size	3/4 inch
Vent Material	PVC, CPVC, Polypropylene
Vent Size	2 inch