Installation
21
│
Page
‐
Condensate
Drain
Connections
‐
The
T
‐
H2
‐
DV/T
‐
H2
‐
OS
are
high
efficiency
condensing
water
heaters
that
produce
condensate
(acidic
water).
The
acidic
condensate
generated
in
the
secondary
heat
exchanger
can
be
neutralized
by
the
TH
‐
NT01
Neutralizer.
Case
A:
If
a
neutralizer
is
not
required
1.
Connect
a
1/2”
X
3/8”
(or
1/2”)
HB
Adaptor
to
the
condensate
drain
port
at
the
bottom
of
the
T
‐
H2
‐
DV/T
‐
H2
‐
OS.
2.
Connect
a
condensate
drain
tube
to
the
1/2”
X
3/8”
(or
1/2”)
HB
Adaptor.
TAKAGI
recommends
the
material
of
the
condensate
tube
be
either
EPDM
or
PVC.
3.
Leave
an
adequate
amount
of
space
between
the
end
of
the
drain
tube
and
the
actual
drain,
to
facilitate
proper
drainage.
Case
B:
If
a
neutralizer
is
required
(installing
the
TH
‐
NT01
Neutralizer
assembly)
1.
Connect
the
1/2”
FPT
X
3/8”
MPT
Adaptor
to
the
condensate
drain
port
at
the
bottom
of
the
T
‐
H2
‐
DV/T
‐
H2
‐
OS.
2.
Connect
the
TH
‐
NT01
Neutralizer
to
the
3/8”
MPT
connection
of
the
adaptor.
There
is
a
flow
direction
indicator
on
the
neutralizer.
Please
orient
the
neutralizer
in
the
proper
direction.
3.
Connect
a
1/2”
drain
tube
to
the
other
end
of
neutralizer.
4.
Leave
an
adequate
amount
of
space
between
the
end
of
the
drain
tube
and
the
actual
drain,
to
facilitate
proper
drainage.
WARNING
•
Discharge
condensate
(acidic
water)
in
accordance
with
all
local
codes
and
common
safety
practices.
Neutralizer
cartridge
(Included
with
TH
‐
NT01)
1/2”
Drain
tube
3/8”
or
1/2”
Drain
tube
Case
A
Adequate
space
Drain
Case
B
Condensate
drain
port
1/2”FPT
X
3/8”
(or
1/2”)
HB
Condensate
drain
port
1/2”FPT
X
3/8”MPT
(Included
with
TH
‐
NT01
)
Adequate
space
Drain
3/8”MPT
X
1/2”HB
(Included
with
TH
‐
NT01)
