•
This water heater is a high
efficienc
y, fully
condensin
g
applianc
e
whic
h
produce
s
acidic condensate
durin
g
operation.
The water heater
incorporates
a
collection and removal
system
which
must be
prop-
erly drained in order to ensure proper operation of this appliance.
•
The pH
lev
el
o
f the
condens
ate is
approxim
ately
2-3.
A
n
e
xtern
al
ne
utralizer must be
in
stalle
d on
the
drain
pipi
n
g
prio
r t
o disposa
l whe
n
require
d
by
loc
al
cod
e
o
r whe
n
the
condens
ate
could caus
e
dama
ge
.
•
If a
n externa
l
neutralizer
is
installed
,
periodic replacemen
t
of
the
neutralizin
g
agent
will be
required.
Refer to the instructions supplied with the neutralizer for suggested replacement intervals.
• In order to drain the condensate, a 1/2" threaded fitting is provided at the base of the water heate
r
.
Do not reduce the size of this fitting or the drain piping to less than 1/2".
I
n cold climates
,
do no
t
drain
the
condensat
e
to
the
outdoors.
If the
drain
pipe freezes
durin
g
cold
weather
, the pipe will not drain condensate and the unit will stop operating.
•
Use
plastic
pipe,
such
as PVC,
for
the
drain line.
D
o not
use steel,
blac
k
iron
,
o
r
an
y
other
material
which can corrode when placed into contact with wate
r
.
•
Keep the
lengt
h
of
the
drain
pipe as
short
as
possible. Lon
g
run
s
o
r
applications
where the
nearest
drain
is
above
the water heater will require the use
of
a
condensat
e pump
.
Size the pump t
o allo
w
for
a maximum condensate discharge of 2 GPH from the water heate
r
.
• Horizonta
l
runs
must be
sloped 1/4"
per
foo
t
towards
the
drain o
r
condensat
e
pump.
The
condensate
will be discharged by gravity force onl
y
. Make the drain pipe run as short as possible.
•
The
end of
the
drain
pipe must
not
be submerge
d in
water
o
r
blocked
i
n any
way
.
T
o ensur
e
proper
drainage
,
leave
the
end of
the
drain
pipe
open to
the
atmosphere.
D
o no
t
have
a trap
. Also
, make
sure that there are no obstructions blocking the drain line from discharging condensate.
•
Be sure t
o check
that
condensate
is freely
flowin
g
from
the
drain piping
after the system has
been
installed. Condensate
will begi
n flowin
g
ou
t
of
the water heater withi
n 1
5
minutes
after
operation
has
started.
•
Take measures t
o
pre
v
e
n
t the
conden
sate
dr
ai
n
li
n
es fr
o
m freezi
n
g
(in
sulat
ion
, heat tape, ele
c
tri
c
heaters, etc.).
Condensate Piping
• The electrical power supply to the unit should be installed bu\y a qualified electrician.
• Allocate 4
A
on the circuit for this water heate
r
.
If more than one unit is being installed, allocate an appropriate circuit to provide power for each unit.
Drain pipe
Drain pipe
Drain connecting
supply
Heat insulation
material
Water heater
Do not pitch the drain line up
once a horizontal section has
been introduced.Always pitch
the drain line down to ensure
proper drainage.
Electrical
42
Summary of Contents for ecoTough NRC83-OD
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