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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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