9
About the Boiler
NFC Internal Pump
The NFC boiler is equipped with an internal circulation pump. The following table provides detailed information on the pump used for the
boiler and the performance curve.
Item
Pump Model
NFC-175/200
Internal Recirculation Pump
Grundfos UPS 15-78 CIL2
(Part Number: 30021636A)
0
5
10
15
20
25
30
0
2
4
6
8
10
12
14
16
0
2
4
6
8
10
12
14
16
F
T
o
f
H
e
a
d
△
P
(
p
s
i)
Flow Rate (GPM)
NFC Flow Performance Curve
NFC-175/200
Grundfos Circulator Sp3 (Default)
Grundfos Circulator Sp2
Grundfos Circulator Sp1
NFC Flow Performance Curve
0
5
10
15
20
25
30
35
40
45
0
1
2
3
4
5
6
7
8
9
10
11
△
P
(
p
si
)
Flow Rate (GPM)
NFC DHW Pressure Drop Curve
NFC DHW Pressure Drop Curve
Summary of Contents for NFC-175
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