Specification Sheet

Rev. 2/11
Specifications
Dimensions
30 40 45 50 60 70 80 90 100
5.0 5.0 4.2 3.9 3.3 2.8 2.5 2.2 2.0
Temperature
Rise (°F)
Flow Rate
(GPM)
Flow Rates
Noritz America reserves the right to discontinue, or change at any time, the designs and/or specications of its products without notice.
33 (pounds)
0.2 Gallon
Water Inlet 3/4"
Hot Water Outlet 3/4"
Gas Inlet 1/2"
Supply 120VAC (60Hz), less than 2 amperes
Consumption NG: 36W LP: 39W Freeze Prevention (optional) 141W
Temperature Settings 100-150°F (In 5°F intervals), 160°F (12 Options)
Default Temperature Options 120, 130, 135, 140°F (Default is 120°F)
Connection
Sizes
Weight
Water Holding Capacity
Power
Model Name
NR50-OD
AIR INLET
AIR INLET
GAS INLET
COLD WATER INLET
WATER DRAIN VALVE
HOT WATER OUTLET
(WATER FILTER)
WATER DRAIN VALVE
WIRING THROUGHWAYS
13.1"
13.8"
20.5"
0.4"
19.2"
0.4" 6.7"
1.2"
FLUE TERMINAL
1.7"
1.0"
FROM BOTTOM OF CASE
HEIGHT OF EACH FITTING
2.0"
GAS INLET
1.9"COLD WATER INLET
1.8"
HOT WATER OUTLET
NR50-OD
BOTTOM VIEW
Pressure Loss
0
10
20
30
40
0
5
10
15
20
0.0 1.0 2.0 3.0 4.0 5.0 6.0
Ft of Head
Pressure Loss (PSI)
Flow Rate (GPM)