About The Water Heater; Description Of The Water Heater; Parts Of The Water Heater - Navien NPE-180A2 User's Information Manual

2. About the Water Heater

2.1 Description of the Water
Heater
The NPE series water heater is available in 6 models:
NPE-180A2, NPE-180S2, NPE-210A2, NPE-210S2,
NPE-240A2 and NPE-240S2.
The main features are as follows:
Potable domestic hot water, combination space
heating, and commercial applications
Maximum temperature: 185 °F (85 °C)
Dual stainless steel Heat Exchangers with stainless
steel piping
Built-in pump and 0.4 US gallon (1.5 liter) Buffer
Tank for internal or external recirculation ("A2"
model only)

2.2 Parts of the Water Heater

Combustion
Air Intake
2.2.1 Bottom View
a
b
c
d
e
# Description
a Pump Drain Port
b Gas Inlet
c Hot Water Outlet Connection
d Recirculation Inlet
e Condensate Water Clean-out
f Inlet Water Filter
g Cold Water Inlet Connection
Condensate Drain
h
Connection
Exhaust
Gas Vent
f
g
h
Remark
"A2" model only
"A2" model only
About the Water Heater 7