Installation Guide

KBD Series Manual 49

The chart below only applies to incoming water temperatures of 70°F (21°C) or less. For
incoming water temperatures greater than 70°F (21°C) please contact Rinnai.

0
10
20
30
40
50
60
70
80
90
100
110
0
5
10
15
20
25
30
35
40
45
50
0 1 2 3 4 5 6 7 8 9 10 11
RUC98i,
RU98e
Pressure Loss ( head)
Water Flow (gpm)
Pressure Loss (psi)
RUC80i,
RU80e
RUC90i,
RU90e
Water Flow (gpm)
delta T - Temperature Rise (°F)
RUC98i, RU98e
RUC80i, RU80e
RUC90i, RU90e