Navien NCB-210 Service Manual

16 NCB Service Manual
Version 1.0
3. Technical Data
3.1 General Specifications
The following table lists the specifications for the boiler. Additional specifications about water, gas, electric, and air supplies (venting)
appear in the Installation section.
Space Heating Specifications
1. Ratings are the same for natural gas models converted to propane use.
2. Heating capacity values are 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
Navien Combination Boiler
Space Heating Ratings
Model
Number
1
Heating Input, MBH
Heating Capacity
2
, MBH
Net AHRI Rating Water
3
,
MBH
AFUE
2
, %
Min
Max
NCB-180
14
80
74
64
93.5
NCB-210
18
100
92
80
93.6
NCB-240
18
120
109
95
93.3
Item
NCB-180
NCB-210
NCB-240
Input Ratings
Min
14,000 BTU/H
18,000 BTU/H
18,000 BTU/H
Max
150,000 BTU/H
180,000 BTU/H
199,900 BTU/H
Water Pressure
15-150 psi
Minimum Flow Rate
0.5 GPM (1.9 L/m)
Flow Rate 77°F (43°C) Temp. Rise
3.4 GPM
4.0 GPM
4.5 GPM
DHW Supply Connection Size
3/4 in NPT
Cold Water Input Connection Size
3/4 in NPT

Navien NCB-210 Specifications

General

Brand	Navien
Model	NCB-210
Category	Boiler
Language	English