Specification Sheet

Rev. 6/14
Dimensions
FROM BOTTOM OF CASE
HEIGHT OF EACH FITTING
2.2" (56 mm)GAS INLET
2.2" (55 mm)
COLD WATER INLET
1.7" (44 mm)
HOT WATER OUTLET
NRC1111-DV
BOTTOM VIEW
ut notice.
Specifications
CONDENSATE DRAIN
0.8" (20 mm)
CONDENSATE DRAIN
WATER DRAIN VALVE
WATER DRAIN VALVE
(WATER FILTER)
HOT WATER OUTLET
WATER DRAIN VALVE
(AC120V)
GAS INLET
COLD WATER INLET
< inch (mm)>
30 40 45 50 60 70 80 90 100
11.1 9.3 8.4 7.4 6.2 5.3 4.6 4.1 3.7
Temperature
Rise (°F)
Flow Rate
(GPM)
Flow Rates
68 (pounds)
Water Inlet
Hot Water Outlet
Condensate Drain
Supply
NG: 81W LP: 93W Freeze Prevention 223WConsumption
Temperature Settings
100-140°F (In 5°F intervals) (9 Options)
Default Temperature Options
120, 135, 140°F (Default is 120°F)
Connection
Sizes
Weight
Water Holding Capacity
Power
Model Name
NRC1111-DV
Freeze Protection Indoor: -30 °F
37-48°C (In 1°C intervals), 50, 55, 60°C (In 5°C intervals) (15 Options)
°F Mode
°C Mode
°F Mode
°C Mode
50, 57, 60°C (Default is 50°C)
Gas Inlet
Pressure Loss
2.2" (56 mm)
2.2" (55 mm)
1.7" (44 mm)
NRC1111-OD
0.8" (20 mm)
2.4" (61mm)2.1" (53mm)
18.3" (464mm)
17.6" (448mm)
10.5" (267mm)
3.9" (99mm)
OD Model
66 (pounds)
0.5 Gallon (2 L)
3/4"
3/4"
1/2" Threaded
120VAC (60Hz), less than 4 amperes
NG: 78W LP: 80W Freeze Prevention 223W
NRC1111-OD
Outdoor: -4 °F
3/4"
Operating Pressure
Gas Supply Pressure
NG: 4.0” - 10.5” LP: 8.0” - 14.0”
15 - 150 psi
(VIEW FROM TOP)
HOT WATER OUTLET (3/4")
CONDENSATE DRAIN (1/2")
WIRING THROUGHWAY
WIRING THROUGHWAY
COLD WATER INLET (3/4")
GAS INLET (3/4")
5.3" (135mm)
6.1" (155mm) 4.3" (109mm)
2.4" (60mm)
6.7" (171mm)
7.0" (177mm)
8.4" (214mm)
3.9" (99mm)
2.8" (70mm)
14.2" (362mm)
5.7" (146mm)
3.9" (98mm)
(AC120V)
DV Model
WIRING THROUGHWAY
(AC120V)
5.3" (135mm)
2.8" (71mm)
6.7" (171mm) 7.0" (177mm)
COLD WATER INLET (3/4")
GAS INLET (3/4")
14.2" (362mm)
5.7" (146mm)
3.9" (98mm)
HOT WATER OUTLET (3/4")
CONDENSATE DRAIN (1/2")
WIRING THROUGHWAYS
6.1" (155mm) 4.3" (109mm)
2.4" (60mm)
3.9" (99mm)
2.8" (70mm)
8.4" (214mm)
10.0" (255mm)
OD Model
AIR INLET
FLUE COLLAR
24.2" (615mm)
Ø4.5" (Ø114mm)
Ø3.5" (Ø89mm)
18.3" (464mm)
17.6" (448mm)
5.9" (150mm) 9.1" (232mm)
Ø4.5" (Ø114mm)
Ø3.5" (Ø89mm)
WIRING THOROUGHWAY
0.4" (10mm)
1.6" (40mm)
23.1" (586mm)
2.4" (61mm)
0.4" (10mm)
9.4" (240mm)
5.5" (140mm)
1.1" (28mm)
Front View
Side View
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
Pressure loss [Ft. of head]
Bypass Flow Control Valve Close
Set temperature : 125
F or higher
Bypass Flow Control Valve Open
Set temperature : 120
F or less