Step 2 - Mount Unit - Carrier 40MUAA Installation Instructions Manual

40MUAA: Installation Instructions

Step 2 - Mount Unit

The unit can stand or lie on the floor, or hang from a ceiling or a wall.
Allow space for wiring, piping, and servicing the unit.
IMPORTANT: When the unit is installed over a finished ceiling and/
or living area, building codes may require a field-supplied secondary
condensate pan to be installed under the entire unit.
Some localities may allow as an alternative, the running of a separate,
secondary condensate line. Consult the local codes for additional
restrictions or precautions.
NOTE: Nuisance sweating may occur if the unit is installed in a high
humidity environment with low airflow.
Fig. 6 —Installation Clearances
T1: Room Temperature Sensor
T2: Evaporator Coil Temperature Sensor
Fig. 7 — Temperature Sensor Positions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
A. Upflow or Horizontal-Left Installation
The units can be installed in a vertical Upflow or horizontal (left)
configuration.
NOTE: There is no need to change the direction of the evaporators
with Vertical Upflow and Horizontal Left installations.
Follow these steps to perform a Vertical Upflow installation and
Horizontal Left 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.
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Fig. 8 —Vertical Upflow Installations
Fig. 9 —Horizontal Left Installations
NOTE: For a horizontal left installation, secondary condensate pan
(field supplied) must be installed (refer to local codes).
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Fig. 10 —Illustration
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