5. FURNACE
IN
HORIZONTAL
LEFT
POSITION
A CAUTION
Both
the
coil
and
furnace
must
be
fully
supported. Do
not
attempt
to
suspend
the
coil
using
the brackets.
The
non-condensing furnaces
may
be
laid
on
either
side for
horizontal application.
The
condensing downflow/horizontal
and
upflow/horizontal
furnaces
may
only be
rotated
onto
their
left side.
Connection
brackets
for coil/furnace
alignment
are
included
with
the
furnaces.
a. Horizontal left: As shipped,
the
coil is
ready
when
in
the
horizontal left configuration.
b.
In
horizontal left,
the
4TXC coil case
is
rotated
so
the
apex
of
the
coil is
away
from
the
furnace
and
the
auxil-
iary
drain
pan
is now on
the
lower side.
c.
The
two piece baffle ships
installed
on
the
coil
and
is
required
for horizontal left applications. See
Figure
4.
d.
The
base
of
the
coil enclosure is placed flush
against
the
downflow/horizontal furnace. Upflow/horizontal
condensing furnaces
have
the
coil
match
the
top flange.
e.
There
are
three
brackets
included
with
the
downflow
furnace which
are
used
to connect
the
furnace
and
coil
together.
See
Figure
5.
f.
Two
brackets
are
used
to
attach
the
rear
of
the
coil
and
furnace
and
one
bracket
is
used
to
attach
the
front.
The
rear
brackets
will
use
existing screws on
the
coil
enclosure (two on each side
at
the
bottom).
Each
of
the
rear
brackets
will
be
attached
with
the
wide side
of
the
bracket
resting
on
the
top
and
bottom
of
the
horizontal
coil
and
furnace (see
Figure
6).
Four
additional screws
will be
used
to
attach
each
rear
bracket.
g.
The
front
bracket
is positioned
as
close to
the
cen-
ter
as
possible
with
the
narrow
edge
against
the
coil
enclosure
and
the
wide edge
against
the
furnace .
Two
screws
each
are
driven
into
the
coil enclosure
and
furnace.
h.
There
is a left
guard
packaged
with
the
coil. This
guard
is for horizontal left coil
installation
only.
The
guard
has
a
bend
which is
inserted
into
the
front chan-
nel
of
the
horizontal
drain
pan
on
the
outlet
air
side
of
the
coil case.
The
guard
is
then
rotated
downward
until
it
rests
in
the
drain
pan. One
sheet
metal
screw
is driven
through
the
coil case
duct
flange on
the
front
side
and
into
the
splash
guard
side hole. See
Figure
7.
18-AH44D1-6
Installer's
Guide
TWO-PIECE BAFFLE
SHIPPED INSTALLED
ON
COIL
"'
"
"'
UPFLOW
/DOWN
FLOW HORIZONTAL
LEFT
INSTALLATION READY
CASED COIL CONNECTION
BRACKET FOR DOWNFLOW
FURNACE
IN
HORIZONTAL
Figure 5
0
0
"'
"'
"'
Figure 4
"'...,'
~t"'"'
f'~
-
(.
/
CASED
COIL
SHOWN
INSTALLED
HORIZONTAL
LEFT
WITH
A
DOWN
FLOW
FURNACE
AND
HORIZONTAL
ALIGNMENT
BRACKETS
Figure 6
COIL
CASING
CHANNEL
BRACKETS SHIP WITH
DOWNFLOW FURNACES.
REQUIRED FOR ALIGNMENT
ON
HORIZONTAL INSTALLATIONS.
Figure 7
3
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