Navien NPE-240A2 User Manual

7About 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:
Ɣ
Potable domestic hot water, combination space
heating, and commercial applications
Ɣ
Maximum temperature: 185 °F (85 °C)
Ɣ
Dual stainless steel Heat Exchangers with stainless
steel piping
Ɣ
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
Exhaust
Gas Vent
Combustion
Air Intake
2.2.1 Bottom View
a
b
c
d
e
f
g
h
# Description Remark
a Pump Drain Port “A2” model only
b Gas Inlet
c Hot Water Outlet Connection
d Recirculation Inlet “A2” model only
e Condensate Water Clean-out
f Inlet Water Filter
g Cold Water Inlet Connection
h
Condensate Drain
Connection
2. About the Water Heater

Navien NPE-240A2 Specifications

General

Type	Tankless
Fuel Type	Natural Gas or Propane
Energy Factor	0.96
Water Connection Size	3/4" NPT
Gas Connection Size	3/4" NPT
Voltage	120 V
Ignition Type	Electronic
Flow Rate	11.2 GPM
Vent Size	2"/3"
Installation Type	Wall Mounted
Venting	Direct Vent
Warranty	15-Year Heat Exchanger, 5-Year Parts, 1-Year Labor
Max Input	199, 900 BTU/h