
Performance
Maximum Performance
Minimum Performance
Maximum Hot Water Capacity 45°F Rise
Default Temperature Options 120, 130, 140°F (Original is 120°F) 120, 130, 140, 185°F (Original is 120°F)
Temperature Settings (Using the Remote Controller)
100 - 140°F (In 5°F intervals),
(9 Options) 100 - 150°F (In 5°F intervals),
160, 170, 185°F (14 Options)
NRC1111-DV NRC1111-OD NCC1991-DV
Gas Consumption NG : 199,900 btuh LP : 199,900 bt
NG : 16,000 btuh LP : 16,000 btu
8.4 Gal./min.
Capacity Range
Item
0.5 - 11.1 Gal./min.
NCC1991-OD
Maximum Performance
Minimum Performance
Maximum Hot Water Capacity 45°F Rise
Default Temperature Options 120, 130, 140°F (Original is 120°F) 120, 130, 140, 185°F (Original is 12
Temperature Settings (Using the Remote Controller)
100 - 140°F (In 5°F intervals),
(9 Options) 100 - 150°F (In 5°F intervals),
160, 170, 185°F (14 Options)
NC1991-DVC
Gas Consumption NG : 199,900 btuh LP : 199,900 bt
NG : 16,000 btuh LP : 16,000 btu
7.5 Gal./min.
Capacity Range
Item
0.5 - 9.8 Gal./min.
NC1991-OD
NR981-DVC / NR981-OD / NR981-SV
Item
Gas
Consumption
Maximum Hot Water Capacity
Capacity Range
Temperature Settings
Default Temperature Options
Maximum Performance
Minimum Performance
45°F (25°C) Rise
NRC98-DV
NG : 180,000 btuh LP : 180,000 btuh
NRC98-OD
NG : 16,000 btuh LP : 16,000 btuh
7.5 GPM (28.2 L/min.)
0.5-9.8 GPM (2-37.0 L/min.)
100-140°F (In 5°F intervals) (9 Options)
°F Mode:
°C Mode: 37-48°C (In 1°C intervals),
50,55,60°C (In 5°C intervals) (15 Options)
120°F (50°C), 130°F (55°C), 140°F (60°C)
(Original is 120°F (50°C))
Item
Gas
Consumption
Maximum Hot Water Capacity
Capacity Range
Temperature Settings
Default Temperature Options
Maximum Performance
Minimum Performance
45°F (25°C) Rise
NRC83-DV
NG : 157,000 btuh LP : 157,000 btuh
NRC83-OD
NG : 16,000 btuh LP : 16,000 btuh
6.6 GPM (25.0 L/min.)
0.5-8.3 GPM (2-31.4 L/min.)
100-140°F (In 5°F intervals) (9 Options)
°F Mode:
°C Mode: 37-48°C (In 1°C intervals),
50,55,60°C (In 5°C intervals) (15 Options)
120°F (50°C), 130°F (55°C), 140°F (60°C)
(Original is 120°F (50°C))
Item
Gas
Consumption
Maximum Hot Water Capacity
Capacity Range
Temperature Settings
Default Temperature Options
Maximum Performance
Minimum Performance
45°F (25°C) Rise
NR83-DVC
NG : 180,000 btuh LP : 180,000 btuh
NG : 18,000 btuh LP : 18,000 btuh
6.7 GPM (25.4 L/min.)
0.5-8.3 GPM (2-31.4 L/min.)
100-140°F (In 5°F intervals) (9 Options)
50,55,60°C (Original is 50°C)
120,130,140°F (Original is 120°F)
°F Mode:
°F Mode:
°C Mode:
°C Mode:
37-48°C (In 1°C intervals),
50,55,60°C (In 5°C intervals) (15 Options)