User Guide

11
General Parts -1
Main Unit
* Theaboveillustrationshowsanexampleofinstallation.
The exact installation conguration may be slightly different.
NC199OD (GQ-2857WZ US)
(OutdoorWallMounted,PowerVentedModel)
Air Inlet
WaterSupplyValve
GasSupplyValve
PressureReliefValve
ExhaustVent
FrontCover
WaterDrainValve
(with Water Filter)
(Inside Water Inlet)
( p.36)
NC199DVC (GQ-2857WZ-FFA US)
(IndoorWallMounted,PowerVent/SealedModel)
FrontCover
WaterSupplyValve
GasSupplyValve
WaterDrainValve
(with Water Filter)
(Inside Water Inlet)
( p.36)
PressureReliefValve
Concentric Pipe