NC199 Spec Sheet

Rev. 06/16
ut notice.
Dimensions
Flow Rate (gpm)
Pressure Loss (psi)
Ft of Head
Pressure Loss
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
0
10
20
30
40
50
60
Set temperature: 125°F or higher
(Storage Tank Setting w/ System
Controller: 170~180°F)
Set temperature: 120°F or less
(Storage Tank Setting w/ System
Controller: 160°F or less)
Specifications
Water Inlet
Hot Water Outlet
Supply
Consumption NG: 65W LP: 67W Freeze Prevention 161W
Temperature Settings
100-150°F (In 5°F intervals), 160, 170, 185°F (14 Options)
Default Temperature Options
120, 135, 140, 185°F (Default is 120°F)
Connection
Sizes
Weight
Water Holding Capacity
Power
Model Name
NC1991-OD
Freeze Protection Outdoor: -4 °F
37-48°C (In 1°C intervals), 50-85°C (In 5°C intervals) (20 Options)
°F Mode
°C Mode
°F Mode
°C Mode
50, 57, 60, 85°C (Default is 50°C)
Gas Inlet
54 (pounds)
0.2 Gallon (1.0 L)
3/4"
3/4"
120VAC (60Hz), less than 4 amperes
3/4"
58 (pounds)
NG: 80W LP: 83W Freeze Prevention 193W
NC1991-DVC
Indoor: -30 °F
0.2 Gallon (1.0 L)
Operating Pressure
Gas Supply Pressure
NG: 4.0” - 10.5” LP: 8.0” - 14.0”
15 - 150 psi
FROM BOTTOM OF CASE
HEIGHT OF EACH FITTING
2.2" (56mm)GAS INLET
2.2" (55mm)COLD WATER INLET
1.8" (45mm)HOT WATER OUTLET
NC1991 Series
FLUE COLLAR
AIR INLET
5.0"
3.1"
13.1"
13.8"
DVC Model
4.8"
1.1"
11.0"
0.4" - 1.8"
DVC Model
7.2" (184mm) 7.8" (199mm) 4.9" (125mm) 6.4" (163mm)
3.1" (79mm)
9.5" (241mm)
2.4" (60mm)
1.4" (36mm)
(VIEW FROM TOP)
HOT WATER OUTLET (3/4")
WIRING THROUGHWAY
COLD WATER INLET (3/4”)
GAS INLET (3/4")
WIRING THROUGHWAY
(AC120V)
5.7" (146mm)
10.3" (262mm)
9.5" (241mm)
1.4" (36mm)
2.4" (60mm)
6.1" (155mm) 5.3" (134mm)
2.0" (50mm) 6.7" (171mm) 3.8" (97mm)
HOT WATER OUTLET (3/4")
WIRING THROUGHWAY
COLD WATER INLET (3/4")
GAS INLET (3/4")
WIRING THROUGHWAY
(AC120V)
5.7" (146mm)
10.3" (262mm)
DVC Model
OD Model
1.6" (41mm)22.3" (567mm)
23.6" (600mm)
1.7" (42mm)
3.4" (88mm)
0.4" (10mm)
0.4" (10mm)
0.4" (10mm)
1.1" (28mm)
9.4" (240mm)
AIR INLET
AIR INLET
WIRING THROUGHWAY
WATER DRAIN VALVE
(WATER FILTER)
HOT WATER OUTLET
WATER DRAIN VALVE
WIRING THROUGHWAY
(AC120V)
GAS INLET
COLD WATER INLET
FLUE COLLAR
2.4" (61mm)
13.8" (350mm)
13.1" (334mm)
9.9" (252mm)
SIDE VIEW
FRONT VIEW
BOTTOM VIEW
30 40 45 50 60 70 80 90 100 110 120 130 140
9.8 8.4 7.5 6.7 5.6 4.8 4.2 3.7 3.4 3.1 2.8 2.6 2.4
Temperature
Rise (°F)
Flow Rate
(GPM)
Flow Rates