Navien NFB-175H, Installation Manual, Page: 22 / 135

22 Installing the System Piping
Space Heating Supply
Space Heating Return
The following tables list the specifications for the available pumps and Navien’s manifold system. If you are not
using one of the pumps listed below, you must use a circulator with check valve installed at pump outlet or a
pump with an integral check valve.
Model Number
Item NFB-175H NFB-200H
NFB-175/200H
Manifold System
PART CODE: GFFM-MSOZUS-002
UPC CODE: 884954907574
Pump Specifications
Model Temp. Rise
Pump Model
Grundfos Taco Bell & Gossett Armstrong
NFB-175H
20°F UPS26-99FC
0010-IFC
0013-MSF1-IFC
NRF-36 E7
25°F UPS26-99FC
0010-IFC
0015-MSF1-IFC
NRF-25 E7
35°F UPS15-58FC
005-IFC
0015-MSF1-IFC
NRF-22 Astro 30
NFB-200H
20°F UPS26-99FC
0010-IFC
0013-MSF1-IFC
NRF-36 E7
25°F UPS26-99FC
007-IFC
0015-MSF1-IFC
NRF-36 E7
35°F UPS15-58FC
005-IFC
0015-MSF1-IFC
NRF-22 Astro 30
Note
If you are not using one of the pumps listed in the above tables, use a pump with an integral check
valve or install a check valve at the pump outlet. Refer to the performance curve on page 24 to
select a pump that suits your application. The boiler can supply up to a maximum of 2.5 A current at
the boiler pump connection terminal.