Install Drain Joint - Pioneer WAS Series Installation Manual

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. 4.2
Fig. 4.3
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 specific-approved anti-corrosion coating sprays
on heat exchanger surface to resist corrosion.
Step 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:
Fit the rubber seal on the end of the drain joint
1.
that will connect to the outdoor unit.
Insert the drain joint into the hole in the base
2.
pan of the unit.
Rotate the drain joint 90° until it clicks in place
3.
facing the front of the unit.
Connect a drain hose extension (included)
4.
to the drain joint to redirect water from the
unit during heating mode.
Strong wind
If the drain joint doesn't come with a rubber
seal (see Fig. 4.4 - B ), do the following:
Insert the drain joint into the hole in the base
1.
pan of the unit. The drain joint will click in
place.
Connect a drain hose extension (included)
2.
to the drain joint to redirect water from the
Wind baffle
unit during heating mode.
Strong wind
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 inside unit.
Insulate the drain hose for cold climates to
prevent freezing. Frequently inspect the unit
to ensure it is not buried in snow, or the inside
is not filled up from heavy buildup of snow or
ice, which can prevent the fan from spinning.
Base pan hole of
outdoor unit
Seal
Seal
Drain joint
(A)
Fig. 4.4
(B)
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