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
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