8 About the
W
ater Heater
2.2 Parts of the Water Heater
Coaxial
(Intake/Exhaust)
B
ottom View
a
b
c
d
e
f
g
h
#
Descri
p
tion
R
emark
a
Pump
Drain
Port
“
A
”
mode
l
on
l
y
b
Gas
In
l
et
c
Hot
W
ater
Out
l
et
Conne
c
tion
d
Re
c
ir
c
u
l
ation
In
l
et
“
A
”
mode
l
on
l
y
e
Condensate
W
ater
C
l
ean-out
f
In
l
et
W
ater
Fi
l
ter
g
Co
l
d
W
ater
In
l
et
Conne
c
tion
h
Condensate
Drain
Conne
c
tion
2.1
Descri
p
tion
of
the
Water
H
eater
T
he
NPE-series
water
heater
is
avai
l
ab
l
e
in
four
mode
l
s:
NPE-
24A
W
E,
NPE-24S
W
E,
NPE-32A
W
E,
and
NPE-32S
W
E
T
he
main
features
are
as
fo
ll
ows:
Potab
l
e
domesti
c
hot
water,
c
ombination
spa
c
e
heating,
and
c
ommer
c
ia
l
app
l
i
c
ations
Maximum
temperature:
85°C
Dua
l
stain
l
ess
stee
l
Heat
Ex
c
hangers
with
stain
l
ess
stee
l
piping
Bui
l
t-in
pump
and
1
.5
l
itre
Bu
ff
er
T
ank
for
interna
l
or
externa
l
re
c
ir
c
u
l
ation
(
“
A
”
mode
l
on
l
y)
2. About the Water Heater
