General Parts -1
NC1991-OD
(Outdoor Wall Mounted, Power Vented Model)
Exhaust Vent
Front Cover
Air Inlet
Pressure Relief Valve
Gas Supply Valve
NC1991-DVC
(Indoor Wall Mounted, Power Vent/Sealed Model)
Concentric Pipe
Front Cover
Pressure Relief Valve
Gas Supply Valve
* The above illustration shows an example of installation.
The exact installation configuration may be slightly different.
Main Unit
Water Drain Valve
(with Water Filter)
(Inside Water Inlet)
(
p.36)
Water Supply Valve
Water Drain Valve
(with Water Filter)
(Inside Water Inlet)
(
p.36)
Water Supply Valve
11