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Installer's Guide
G. 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.
1.
HORIZONTAL LEFT COIL CONVERSION: While not
required, optional
removal
of some coil components will
maximize
airflow efficiency.
a.
Remove
the
coil by sliding
the
coil out of the coil enclosure.
b.
Optional but
recommended:
On 4TXCC009DS and
4TXCD01 ODS only,
remove
the (2) outer water diverter
baffles by removing the 5/16" hex head screws. See
Figure 8.
2.
HORIZONTAL LEFT (All coils)
The non-condensing furnaces may be laid on either side
for horizontal application. The condensing downflow/hori-
zontal and upflow/horizontal furnaces may only be rotated
onto their
left
side. Connection brackets for coil/furnace
alignment are included with the
furnaces.
a. In horizontal left, the 4TXCcoil case is rotated so
the apex of the coil is away
from
the furnace and the
auxiliary
drain pan
is
now on the lower side.
b.
The
two
piece
baffle ships installed on the coil and is
required for
horizontal
left applications.
c. 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.
d. There are three brackets included with the non-
condensing downflow furnace which are used to
connect the furnace and coil together. See Figure
9.
e. 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 resti.1g on the top and bottom of
the
horizontal
coil and furnace (see FigurE
1
0).
Four
additional
screws will be used
to
attach each
rear bracket.
f.
The front bracket is positioned as close to
the
center
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.
g. There is a splash 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
channel 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
11 .
Standoffs and screws (See Figure 3) are
included
with
the cased
coils for attachment to the furnace. There are clearance alignment
holes near the bottom of the coil wrapper. Drill screws are used
to engage the top flanges of the furnace. The standoff is inserted
into the cabinet alignment hole (See Figure
3).
The drill screws are
inserted through the standoffs then screwed
into the
furnace top
flange.
The
coil
is
always placed downstream of the furnace airflow.
The
coil
and
furnace must be fully supported when used
in
the hori-
zontal position.
The
standoffs and screws are strictly for securing
alignment, not for support in horizontal.
4
/
'
CASED
COIL
CONNECTION
BRACKET FOR DOWNFLOW
FURNACE
IN
HORIZONTAL
Figure 9
0
0
Figure 8
CASED
COIL
SHOWN
INSTALLED
HORIZONTAL
LEFT
WITH A DOWN
FLOW
FURNACE
AND
HORIZONTAL
ALIGNMENT
BRACKETS
COIL
CASING
Figure
10
CHANNEL
Figure
11
BRACKETS
SHIP Willi DOWN
FLOW
NON·CONDENSING
FURNACES.
REQUIRED FOR ALIGNMENT
ON SOME
HORIZONTAL
INSTALLATIONS.
18-AD39D1-1 A-EN
•
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