Carrier 40MBAA Installation Instructions Manual page 6

A. Upflow or Horizontal-Right Installation
The units can be installed in a vertical Upflow or horizontal (right)
configuration.
NOTE: There is no need to change the direction of the
evaporators with Vertical Upflow and Horizontal Right
installations.
Follow these steps to perform a Vertical Upflow installation and
Horizontal Right installation:
1. Open the upper cover.
2. Open the cover of the electronic control box.
3. Connect all necessary wiring according to the wiring diagram.
4. Connect the lineset.
5. Install the drain lines.
Vertical Upflow Installations
Fig. 7 — Vertical Upflow Installations
Horizontal Right Installations
Fig. 8 — Horizontal Right Installations
NOTE: For a horizontal right installation, secondary condensate
pan (field supplied) must be installed (refer to local codes).
6
B. Downflow or Horizontal-Left Installation
For the Horizontal Left installation and the Vertical Downflow
installation, the direction of the evaporator should be changed and the
drain pan should be removed first.
Use the following steps to remove the drain pan.
1. Remove the filter cover.
2. Remove the filter.
3. Open the evaporator cover and remove the drain plug.
Fig. 10 — Open the evaporator cover and remove the
Secondary
Condensate
Pan
Specifications subject to change without notice.
Filter
Fig. 9 — Remove the Filter
drain plug
IM-40MBAA-02