NC199 Owner's Guide

11
General Parts -1
Main Unit
* Theaboveillustrationshowsanexampleofinstallation.
The exact installation conguration may be slightly different.
NC1991-OD
(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)
NC1991-DVC
(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