HTW IX21D5 Serie Manuel D'installation page 71

SPLIT 1X1 IX21D5
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.
See Fig. 4.2 and Fig. 4.3 below.
Strong wind
Fig. 4.3
5.2 INSTALL DRAIN JOINT
Heat pump units require a drain joint. 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.
If the drain joint comes with a rubber seal (see Fig. 4.4 - 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. 4.4 - 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.
Fig. 4.4
Seal
Drain joint
Strong wind
Fig. 4.2
Wind baffle
Strong wind
Base pan hole of
outdoor unit
Seal
5. OUTDOOR UNIT INSTALLATION
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.
If the unit is frequently exposed to salty air
(seaside):
Use outdoor unit that is specially designed
to resist corrosion.
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 in the hose and flood
the unit.
INSTALLATION MANUAL
69
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