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5.5 Horizontal Applications
If installed above a finished living space a secondary drain pan,
as required by many building codes, must be installed under
the entire unit and its condensate drain line must be routed
to a location such that the user will see the condensate dis-
charge.
6
INSTALLATION LOCATION
NOTE: These air handlers are designed for indoor installation only.
The AVPEC product line may be installed in one of the upflow,
downflow, horizontal left or horizontal right orientations as shown
in Figures 3, 4, 5 and 6. The unit may be installed in upflow or
horizontal left orientation as shipped (refer to specific sections
for more information).
Minor field modifications are necessary to convert to downflow
or horizontal right as indicated in below sections.
6.1 Upflow Installation
No field modifications are mandatory however to obtain maxi-
mum efficiency, the horizontal drip shield, side drain pan and
drain pan extension, can be removed.
Side Drain Pan and Extension Removal: Refer to Figure 1,
remove the two (2) screws that secure the drip shield sup-
port brackets to the condensate collectors (front and back).
Unsnap the side drain pan from the bottom drain pan using a
screw driver or any small lever. The side drain pan, drip shield
brackets and the drain pan extension may now be removed.
From Figure 1, drain port labeled (A) is the primary drain for
this application and condensate drain line must be attached
to this drain port. Drain port (a) is for the secondary drain line
(if used).
6.2 Horizontal Left Installation
No field modifications are permissible for this application.
Drain port labeled (B) in Figure 1 is the primary drain for this
application and condensate drain line must be attached to
this drain port. Drain port (b) is for the secondary drain line
(if used).
In applications where the air handler is installed in the hori-
zontal left position ( ), and the return air environment see
humidity levels above 65% relative humidity coupled with
total external static levels above 0.5" e.s.p., a condensate kit
is available for field application. Kit nomenclature can be
found in the table 1.
6.3 Downflow/Horizontal Right Installation
IMPORTANT NOTE: In the downflow application, to prevent
coil pan "sweating", a downflow kit (DFK) is available through
your local Daikin distributor. The DFK is not supplied with the
air handler and is required to minimize pan sweating on all
downflow installations. See Table 2 for the correct DFK and
follow the instructions provided for installation.
Refer to Figure 7 and 8 for the location of the components
referenced in the following steps.
Extension
Drip Shield
Bracket
Screw
Side Drain Pan
b
B
A
a
CMK0008
CMK0009
Condensate
Condensate
AVPEC25B14
AVPEC37C14
CONDENSATE KIT
DFK-B
Downflow Kit
AVPEC25B14
DOWNFLOW KIT
1. Before flipping the air handler, remove blower access panel
and coil access panel. The coil access panel and tubing panel
may remain screwed together during this procedure. Remove
and retain the seven (7) screws securing the coil access panel
to the cabinet and the six (6) screws securing the blower
access panel to the cabinet.
2. Before removing the coil remove the wire ties holding the
sensor wire harness to the center support. Remove the in-
sulation covering the wire connectors and disconnect the
wires. Do not cut or damage the insulation covering the junc-
tion connectors since it will be required to secure the wires
once the change is complete. See FigureS 2-1 and 2-2 for
wire tie location.
NOTE: DO NOT USE MANIFOLDS OR FLOWRATOR TO PULL
THE COIL ASSEMBLY OUT. FAILURE TO DO SO MAY RESULT
IN BRAZE JOINT DAMAGE AND LEAKS.
4
Horizontal
Drip Shield
DRIP SHIELD REMOVAL
Figure 1
CMK0010
Condensate
Condensate
AVPEC59D14
AVPEC61D14
Table 1
DFK-C
DFK-D
Downflow Kit
Downflow Kit
AVPEC59D14
AVPEC37C14
AVPEC61D14
Table 2
Bottom
Drain Pan
CMK0011
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