Horizontal Left; Horizontal Right - Trane 4TEP3F18A1000A Installer's Manual

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|nsta||er's Guide
c. Detach the coil from the drain pan by removing f.
4 screws as shown in Figure 4.
d. Remove the front triangular baffle from the coil
and install the 1/2" wide gasket provided per
Figure 4. Trim the gasket length to fit the baffle.
Reinstall the bane to coil, with gasket material
compressed against the coil.
e. Install the water blow-offbaffles provided on each
side of the coil with the flange at the top as shown
in Figure 4. The bottom of the baffle is to be as g.
close to the bottom of the coil as possible.
f. Install the 7/8" wide gasket in each side of the
drain pan as shown in Figure 4 (sect. X-X).
g. Place the 2 water diverter baffles (5 ton model h.
only) underneath the coil on the inside edge of
the drain pan, Figure 4. Fill the bend in the i.
baffle which fits the inner edge of the drain pan
with RTV type adhesive/sealant before installing
the baffle.
h. The unit is then placed with the blower side down
and the coil is replaced on the coil channel supports
with the drain connections at the bottom. The unit
is now in downflow position with front access.
i. When air handler with supplementary heater is to
be installed in the downflow position on combus-
tible flooring an accessory subbase (TAYBASE101
for 4TEP3F18-36A, TAYBASE100 for 4TEP3F42A,
4TEP3F48-63B and TAYBASE102 on 4TEP3F48-
63A) must be used. See Figure 1.
HORIZONTAL LEFT
a. For maximum efficiency and Customer ease of
filter maintenance, it is recommended that a
properly sized remote filter and grille be installed
for horizontal applications. Airflow should not
exceed the face velocity of the filter being used.
The factory installed filter should then be
removed from the unit.
b. To convert the unit to horizontal left, front access,
slide the coil out on the coil channel supports and
rotate the complete coil 180 degrees.
c. Remove the factory installed bane assembly from
the apex of the coil by removing the 5/16" hex head
screws. Replace this baffle with the factory sup-
plied narrow coil bane using the screws removed
previously (See Figure 3).
d. The coil is then inserted back into the cabinet on
the opposite side coil channel supports. The unit is
now horizontal left with front access.
e. Openings where field wiring enters the
cabinet must be completely sealed. Location of
power entry is shown on the Outline Drawing.
Cage nuts are not provided for horizontal left
suspension. However, if the unit is suspended, it
must be supported from the bottom near both ends
as well as the middle to prevent sagging. The
service access must remain unobstructed.
If the unit is not suspended it must be supported as
mentioned above and isolated carefully to prevent
sound transmission. Vibration isolators (purchased
locally) must be placed under the unit.
It is always recommended that an auxiliary drain
pan be installed under a horizontal air handler
(See Condensate Piping) to prevent possible
damage to ceilings.
Isolate the auxiliary drain pan from the unit or
from the structure.
Connect the auxiliary drain pan to a separate drain
line (no trap is needed in this line) or route outside
the structure to a conspicuous location in accor-
dance with national and local codes.
HORIZONTAL RIGHT
a. For maximum e_iciency and Customer ease of
filter maintenance, it is recommended that a
properly sized remote filter grille be installed for
horizontal applications. Airflow should not exceed
the face velocity of the filter being used. The
factory installed filter should then be re-
moved from the unit.
b. Unit is shipped from the factory in the upflow or
horizontal right configuration. Unit conversion is
not required.
c. The unit is designed for suspension using 1/4" -
20 threaded rods. Other means of suspension are
allowed as long as the unit is supported from both
ends as well as the middle to prevent sagging and
service access is not obstructed.
d.
If the unit is not suspended it must be isolated
carefully to prevent sound transmission. Vibration
isolators (purchased locally) must be placed under
the unit.
e. It is always recommended that an auxiliary drain
pan be installed under a horizontal air handler
(See Condensate Drain Piping) to prevent possible
damage to ceilings.
f. Isolate the auxiliary drain pan from the unit or
from the structure.
g. Connect the auxiliary drain line to a separate drain
line (no trap is needed in this line) and terminate
according to local codes.
h. If a return duct is connected to the Air Handler, it
must be the same dimensions as the return open-
ing shown in the outline drawings.
4 18-G E02D2-4