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507787-01Cmrcool.comPage 6 of 22
After removal of drain pan plug(s), check drain hole(s)
to verify that drain opening is fully open and free of any
debris. Also check to make sure that no debris has
fallen into the drain pan during installation that may plug
up the drain opening.
4. Rotate drain pan 180º front-to-back and install it on the
opposite side of the coil.
5.
6. Remove plastic plug from left hole on coil front end
seal and reinstall plug in back hole.
90º
BEND
CABINET
SUPPORT
COIL SHOWN IN UPLOAD POSITION FOR EASY CONVERSION
TOP CAP SCREWS
DRAIN PAN
REINSTALLED
HERE
DRAIN PAN
SHIPPING
LOCATION
TOP CAP ROTATED TO
CORRECT POSITION
———— DRAIN PLUGS ————
REINSTALLED HERE REMOVED FROM HERE
BACK COIL END SEAL
TOP
CAP
90º
BEND
ALIGN HOLES WITH
HOLES IN COIL END
PLATE. STARTING WITH
THE ROUND HOLES ON
THIS END.
Figure 4.
7.
back coil end plates. The top cap has a 45º bend on
one side and a 90º bend on the other. The 90º bend
must be on the same side as the horizontal drain
pan as illustrated in Figure 4.
DOWN-FLOW RAIL FRONT EDGE OF HORIZONTAL
DRAIN PAN
Figure 5.
NOTE:
into the coil end plate engaging holes. Misaligned
8.
support rail as illustrated.
9. Install the horizontal shield (-060 model) on the front
edge of the horizontal drain pan as illustrated in Figure
5.
NOTE:
of humid air.
10. Knock out drain seal plate from access door. Secure
11. Flip access door and replace it on the unit.
12.
end of the unit. Connect return and supply air plenums
13. If suspending the unit, it must be supported along the
entire length of the cabinet. If using chain or strap,
use a piece of angle iron or sheet metal attached to
illustrated in Figure 3. Connect return and supply air
NOTE:
kit.
If electric heat section with circuit breakers (ECBA25) is
installed in a MAHM*CTA unit in a downflow application, the
circuit breakers must be rotated 180° to the UP position.
See ECBA25 installation instructions for more details.
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