Use and Care Manual
Page 33 mrcool.com
Outdoor Unit Installation
SPECIAL CONSIDERATIONS FOR EXTREME
WEATHER
If the unit is exposed to heavy wind:
Install the unit so the air outlet fan is at a 90°
angle to the direction of the wind. If needed,
build a barrier in front of the unit to protect it
from extremely heavy winds. Ensure the wind
barrier does not block necessary airflow.
See Fig. 6.2 and Fig. 6.3 below.
If the unit is frequently exposed to heavy
rain or snow: Build a shelter above the unit to
protect it from the rain or snow. Be careful not
to obstruct airflow around the unit.
If the unit is frequently exposed to salty air
(seaside): Use an outdoor unit that is specially
designed to resist corrosion.
Step 2: Install drain joint
Strong wind
Strong wind
Fig. 6.2
Fig. 6.3
Strong wind
DRAINAGE IN COLD CLIMATES
In cold climates, make sure that the drain hose
is as vertical as possible to ensure swift water
drainage. If water drains too slowly, it can
freeze.
Seal
Drain joint (only use if elevated)
(A) (B)
Base pan hole of
outdoor unit
Seal
Fig. 6.4
If the drain joint comes with a rubber seal (see
Fig. 6.4 - A), do the following:
1. Fit the rubber seal on the end of the drain joint
that will connect to the outdoor unit.
2. Insert the drain joint into the hole in the base pan
of the unit.
3. Rotate the drain joint 90° until it clicks in place
facing the front of the unit.
4. Connect a drain hose extension (not included) to
the drain joint to redirect water from the unit
during heating mode.
If the drain joint does not come with a rubber
seal (see Fig. 6.4 - B), do the following:
1. Insert the drain joint into the hole in the base pan
of the unit. The drain joint will click in place.
2. Connect a drain hose extension (not included) to
the drain joint to redirect water from the unit
during heating mode
Wind Baffle
Heat pump units require a drain joint if the unit is
elevated. Before bolting the outdoor unit in place,
you must install the drain joint at the bottom of the
unit. NOTE: there are two different types of
drain joints depending on the type of outdoor
unit.