Carrier 40MBAB Installation Instructions Manual page 7

Air handler unit ductless system
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40MBAB: Installation Instructions
AIRFLOW DIRECTION FOR DIFFERENT
INSTALLATION LOCATIONS
Upflow
Fig. 11 — Vertical Airflow
Horizontal left
Horizontal right
Fig. 12 —Horizontal Airflow
NOTE: Vertical up and horizontal left installation does not need to
change the direction of evaporator.
CONNECTING WIRE AND PIPES
Follow these steps to perform vertical down installation and horizontal
right installation.
1. Open the upper cover.
2. Open the electronic control box cover.
3. Connect the wire according to the wiring diagram.
4. Connect the pipes and install the drainage pipes.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Downflow
DOWNFLOW AND HORIZONTAL RIGHT
INSTRUCTIONS
NOTE: The unit may be installed in one of the upflow, downflow,
horizontal left or horizontal right orientations.
1. Remove the filter door.
Fig. 13 — Remove the filter door
2. Remove the upper cover assembly.
Fig. 14 — Remove the upper cover assembly
3. Remove the evaporator cover plate.
Then remove
the second
cover plate.
Fig. 15 —Remove the evaporator cover plate
7
Remove the
bottom cover first.

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