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Page 24mrcool.com
Outdoor Unit Installation
SPECIAL CONSIDERATIONS FOR
EXTREME WEATHER
If the unit is exposed to heavy wind:
Install unit so that 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 air flow. See Fig. 5.2 and
Fig. 5.3 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 air flow around the unit.
Step 2: Install drain joint
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 that there are two
different types of drain joints depending on the
type of outdoor unit.
Strong wind
Strong wind
Fig. 5.2
Fig. 5.3
Strong wind
Wind Baffle
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. 5.4
If the drain joint comes with a rubber seal (see Fig.
5.4 - 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 doesn’t come with a rubber seal
(see Fig. 5.4 - 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.
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