Use and Care Manual

CB &
NRCB
MODEL
CB18ØDV CB199DV NRCb18ØDV NRCB199DV
GQ Reference Number
N/A N/A GHQ-C2801WX-FF US GHQ-C3201WX-FF US
Gas Input Rate
(Domestic Hot
Water Mode)
Max
180,000 BTUH 199,000 BTUH 180,000 BTUH 199,900 BTUH
Min
18,000 BTUH 18,000 BTUH 18,000 BTUH 18,000 BTUH
Gas Input
(Heating Mode)
Max
100,000 BTUH 120,000 BTUH
100,000 BTUH 120,000 BTUH
Min
18,000 BTUH 18,000 BTUH
18,000 BTUH 18,000 BTUH
Hot Water
Capacity
Flow Rate
35° F Rise
9.2 GPM 9.2 GPM
9.8 GPM 10.8 GPM
45°F Rise
7.2 GPM 7.7 GPM
7.6 GPM 8.4 GPM
77°F Rise
4.2 GPM 4.5 GPM
4.4 GPM 4.9 GPM
Installation
Indoor Wall Hung
Flue System
Sealed Combustion Direct Vent, Single Vent
Gas Pressure
NG
3.5” WC-10.5” WC 4.0" WC - 10.5" WC
LP
8.0” WC-14.0” WC
Heat Exchanger
Primary
SS304 (Austenite) SS316L (Austenite)
Secondary
SS304 (Austenite) SS316L (Austenite)
Plate Type
Heat
Exchanger
SS304 (Austenite)
SCR (Austenite)*
*Stress Corrosion Resistant
DHW Heating Priority
DHW Priority Simultaneous Heating and Domestic Capable
AFUE
95%
Wireless Compatible
No Ye s