Dimensions - Noritz NR50-OD Service Manual

Pressure Loss Characteristics (continued)
NR111 (-SV,-OD,-DV) / NC250 (-SV,-DV)-ASME /
N-0931M (-OD,-DV)
55
Bypass Close
Set temperature:
45
125˚F or higher
(Storage Tank Setting w/System
Controller : 170 -180˚F)
30
Bypass Open
Set temperature:
35
120˚F or less
(Storage Tank Setting w/System
Controller : 160˚F or less)
30
25
20
15
10
5
0
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0
Flow Rate (GPM)

3. Dimensions

NR50-OD
HOT WATER OUTLET (3/4")
COLD WATER INLET (3/4")
UPPER WALL MOUNT BRACKETS
LOWER WALL MOUNT BRACKETS
110.0
100.0
90.0
80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0
0.0
8.0 9.0 10.0 11.0 12.0 13.0
(VIEW FROM TOP)
10.0"
7.0"
4.3"
1.5"
GAS INLET (1/2")
7.2"
WIRING THROUGHWAYS
4.7"
0.4" 6.7"
4.7"
2.4"
0.4"
3.3"
NC380-SV-ASME / N-1321M-ASME
30
Bypass Close
Set temperature:
145˚F or higher
25
(Storage Tank Setting w/System
Controller : 170 -180˚F)
Bypass Open
Set temperature:
20
140˚F or less
(Storage Tank Setting w/System
Controller : 160˚F or less)
15
10
5
0
0.0 2.0 4.0
13.3"
13.8"
13.1"
FLUE TERMINAL
BOTTOM OF
CASE
AIR INLET
WATER DRAIN VALVE
COLD WATER INLET
(WATER FILTER)
HOT WATER OUTLET
WATER DRAIN VALVE
10
6.0 8.0 10.0 12.0
Flow Rate (GPM)
AIR INLET
BOTTOM OF CASE
GAS INLET
WIRING THROUGHWAYS
60
50
40
30
20
10
0
14.0