8
Performances
* When you use Quick Connect Multi System, temperature setting range is changed below.
°F Mode: 100-140°F (In 5°F intervals)
°C Mode: 37 -48°C (In 1°C intervals), 50°C, 55°C, 60°C
** Heating Temperature range depends on Installer Mode Setting.
Refer to the Installation Manual for details.
Pump Performance(with internal pressure drop)
00
1
2
3
4
5
5
10
15
20
25
30
GPM
Head (ft
)
Space Heating Rating
* Based on standard test procedures prescribed by United States Department of Energy (DOE).
** The Net AHRI water ratings shown are based on a piping and pickup allowance of 1.15.
Consult Noritz before selecting a boiler for installations having unusual piping and pickup quirements, such as
intermittent system operation, extensive piping system, etc.
Item
Performance
NRCB199DV
(GHQ-C3201WX-FF US)
NRCB180DV
(GHQ-C2801WX-FF US)
Gas Consumption
Maximum
Minimum
Maximum
Minimum
DHW
NG
199,900 Btu/h
18,000 Btu/h
180,000 Btu/h
18,000 Btu/h
LP
199,900 Btu/h
18,000 Btu/h
180,000 Btu/h
18,000 Btu/h
Heating
NG
120,000 Btu/h
18,000 Btu/h
100,000 Btu/h
18,000 Btu/h
LP
120,000 Btu/h
18,000 Btu/h
100,000 Btu/h
18,000 Btu/h
Maximum Hot Water Capacity
(45°F (25°C) Rise)
8.4 GPM (32 L/min)
7.5 GPM (28.2 L/min)
Capacity Range
0.4-11.1 GPM (1.5-42 L/min)
0.4-9.8 GPM (1.5-37 L/min)
Temperature
Settings
DHW*
°F Mode 90-140°F (In 5°F intervals) (11 Options)
°C Mode 32°C, 35°C, 37°C-48°C (In 1°C intervals), 50°C, 55°C, 60°C (17 Options)
Heating
°F Mode 100-180°F (In 1°F intervals) (81 Options)**
°C Mode 40-82°C (In 1°C intervals) (43 Options)**
Combination Boiler
Space Heating Ratings
Model Name
Input, MBH
Heating Capacity,
MBH
*1
Net AHRI Rating
Water, MBH
*2
AFUE, %
Maximum
Minimum
NRCB199DV
(GHQ-C3201WX-FF US)
NG 120
18
111
97
95.0
LP 120
18
111
97
95.0
NRCB180DV
(GHQ-C2801WX-FF US)
NG 100
18
92
80
95.0
LP 100
18
92
80
95.0
About the Combi Boiler