About The Water Heater; Description Of The Water Heater; Parts Of The Water Heater - Navien NPN-160U User's Information Manual

2. About the Water Heater

2.1 Description of the Water
Heater
The NPN-series water heater is available in 7 models:
NPN-160U, NPN-180U, NPN-199U, NPN-120E, NPN-
160E, NPN-180E, and NPN-199E.
The main features are as follows:
Potable domestic hot water and combination
space heating
Maximum temperature: 140 °F (60 °C)
Stainless steel Heat Exchanger with stainless steel
piping

2.2 Parts of the Water Heater

Exhaust Gas
Air Intake
[NPN-160U/180U/199U]
Exhaust Gas
Air Intake
[NPN-120E/160E/180E/199E]
2.2.1 Bottom View
Air Intake
Air Intake
a
b
# Description
a Hot Water Outlet Connection
b Cold Water Inlet Connection
c Gas Inlet
c
Remark
About the Water Heater 7