Hot Water Supply Capabillities
Pressure Loss Characteristics
< NRC98 Series >
< NRC83 Series >
<NR981-OD, NR981-DVC, NR981-SV>
190
[Winter] Inlet water temp. 46 F
80
0
1
2
3
4
5
6
7
8
9
10
11
12
90
130
140
150
160
170
180
120
110
100
Flow Rate (GPM)
190
[Spring / Fall] Inlet water temp. 64 F
80
0
1
2
3
4
5
6
7
8
9
10
11
12
90
130
140
150
160
170
180
120
110
100
Flow Rate (GPM)
190
[Summer] Inlet water temp. 82 F
80
0
1
2
3
4
5
6
7
8
9
10
11
12
90
120
110
100
130
140
150
120
160
170
180
0
5
10
15
20
25
30
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
12.0
Flow rate [GPM]
Pressure loss [psi]
0
10
20
30
40
50
60
P
re
s
s
u
re
loss
[Ft. o
f h
e
a
d
]
Bypass Flow Control Valve Close
Set temperature : 125F or higher
(Storage Tank Setting W/ System
Controller : 170-185 F)
Bypass Flow Control Valve Open
Set temperature : 120F or less
(Storage Tank Setting W/ System
Controller : 160 F or less)
<NRC1111/NCC1991>
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
12.0
Flow Rate (GPM)
0
10
20
30
40
50
60
70
80
P
res
s
ur
e L
os
s
(
F
t.
of
head)
Bypass flow control valve Open
Set temperature : 120
ﾟ
F or less
(storage Tank Setting W/ System
Controller : 160
ﾟ
F or less)
Bypass flow control valve Close
Set temperature : 125
ﾟ
F or higher
storage Tank Setting W/ System
Controller : 170-185
ﾟ
F)
<NR981/NC1991>
[Winter] Inlet water temp. 46 F
[Spring/Fall] Inlet water temp. 64 F
[Summer] Inlet water temp. 82 F
Set temperature ( F)
Set temperature ( F)
80
0
1
2
3
4
5
6
7
8
90
100
110
120
130
140
150
160
170
180
Flow Rate (GPM)
80
0
1
2
3
4
5
6
7
8
10
90
100
110
120
130
140
150
160
170
180
Flow Rate (GPM)
Set temperature ( F)
80
0
1
2
3
4
5
6
7
8
10
90
100
110
120
130
140
150
160
170
180
Flow Rate (GPM)
<NR83-DVC>
9
Summary of Contents for ecoTough NRC83-OD
Page 18: ...NRC1111 DV NCC1991 DV 18 ...
Page 19: ...NRC1111 OD NCC1991 OD 19 ...
