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10. Make sure there are provisions for installing con-
densate drain lines.
11. If side, front or rear return is required, air handler
must
be
elevated
(TAYPLNM100). Connecting return duct directly to
the side, front or rear of the cabinet is not ap-
proved.
12. Route refrigerant & condensate drain lines away
from air handler so they do not interfere with ac-
cess panels and filters.
13. When external accessories are used, the additional
height and width requirements must be considered
in the overall space needed.
14. These units are not approved for outdoor installa-
tion.
15. These units are approved for draw-through application
only.
16. Flow-through Bypass Humidifiers
Excessive bypass air may cause water blow-off,
which will adversely affect system operation and air
cleaner performance. To verify bypass airflow, fol-
low the Bypass Humidifier Pre-Installation Check-
out and Set-Up Procedures available through your
local distributor. Ask for publication number 18-
CH37D1-1.
Steam and Flow-through Fan Power Duct-
mounted Humidifiers
Follow the humidifier installation instructions.
These should only be installed on the supply air
side of the system.
B. Two Piece Cabinet Disassembly
(OPTIONAL)
NOTE: For easier installation into tight areas, the 4 and
5 ton air handlers can be disassembled and reas-
sembled after moved to an attic or other space.
Steps for disassembly and reassembly (See Figures 3
and 4)
1.
Disconnect wiring.
2.
Remove center bracket.
3.
Remove blower assembly.
4.
Remove coil.
5.
Cut foil tape - minimum 3" foil tape.
6.
Remove top 8 screws. See Figure 3.
7.
Lift upper section.
8.
Set air handler in place.
9.
Attach screws - insure gaskets are aligned
along flange.
10.
Use foil tape to seal - use minimum 3" foil tape.
11.
Insert coil.
12.
Reinstall blower assembly.
13.
Reinstall center bracket.
14.
Reconnect wiring.
NOTE: In Downflow, remove coil before blower by re-
versing steps 3 and 4.
18-GE12D1-5
or
placed
on
a
plenum
Installer's Guide
SCREWS 5-8
LOCATED ON
LEFT SIDE
Figure 3 Closeup of Spear Locations
Figure 4
2 Piece Wrapper Spear
C. UNIT INSTALLATION
UPFLOW
a. For maximum efficiency, the horizontal drip
tray should be removed. See Figures 5, 6 and 7.
Tray removal requires that the coil be removed
by sliding the coil out on the coil channel sup-
ports. There is a coil support tab at the top of the
coil connected to the case must be removed first.
Remove 1 inch insulation strip covering the lip of
the drip tray. The tray is detached by removing
the two screws at the drain pan. Remove the two
screws holding the two brackets at the top of the
coil. Remove drip tray by gently breaking the
seal between the drip tray and drain pan.
2
4
1
3
3
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