Specifications - Navien NCB-190/060H Installation & Operation Manual

1.3 Specifications

The following tables list the specifications for the boiler. Additional specifications for water, gas, electricity, and
vent connections are provided in the Installation section.
Space Heating Specifications
Heating Input
(MBH)
Model Number
1
Min
NCB-190/060H 11
NCB-190/080H 11
NCB-240/110H 13
NCB-240/130H 13
NCB-250/150H 14
1. Ratings are the same for natural gas models converted to propane use.
Note
2. Based on U.S. Department of Energy (DOE) test procedures.
3. The net AHRI water ratings shown are based on a piping and pickup allowance of 1.15. Consult
Navien before selecting a boiler for installations having unusual piping and pickup requirements,
such as intermittent system operation, extensive piping system, etc.
Domestic Hot Water Specifications
Item
Min
Input Ratings
Max
Water Pressure
Minimum Flow Rate
35°F (19°C)
Temp Rise
45°F (25°C)
Temp Rise
Flow Rate
(DHW)
67°F (37°C)
Temp Rise
77°F (43°C)
Temp Rise
DHW Supply Connection Size
Cold Water Input Connection
Size
8 About the Boiler
Navien Condensing Boiler
Space Heating Ratings
Heating
Capacity
2
(MBH)
Max
60 56
80 74
110 102
130 120
150 138
NCB-
190/060H 190/080H
10,700
160,000
8.2 GPM
(31.1 L/m)
6.4 GPM
(24.2 L/m)
4.3 GPM
(16.2 L/m)
3.7 GPM
(14.0 L/m)
Net AHRI
AFUE (%)
Rating Water
3 2
(MBH)
49 95.0
64 95.0
89 95.0
104 95.0
120 95.0
NCB- NCB-
240/110H
10,700 13,300
160,000 199,900
15-150 psi
0.5 GPM (1.9 L/m)
10.4 GPM
(39.5 L/m)
7.9 GPM
(30 L/m)
5.4 GPM
(20.3 L/m)
4.7 GPM
(17.8 L/m)
3/4 in NPT
3/4 in NPT
Other Specifications
Water
Water
Connection Size
Pressure
(Supply, Return)
12-30 psi 1 in NPT
NCB- NCB-
240/130H 250/150H
13,300 14,000
199,900 210,000
10.8 GPM
(40.9 L/m)
8.4 GPM
(31.8 L/m)
5.6 GPM
(21.2 L/m)
4.9 GPM
(18.5 L/m)