EDM SYSHP MINI SPLIT 06 16

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2.3 Outdoor unit
2.3.1 Placement Consideraons
Placement of the outdoor unit should take account of the following consideraons:
▪ Outdoor units should not be exposed to direct radiaon from a high-temperature heat source.
▪ Outdoor units should not be installed in posions where dust or dirt may aect heat exchangers.
▪ Outdoor units should not be installed in locaons where exposure to oil or to corrosive or harmful gases, such as acidic or
alkaline gases, may occur.
▪ Outdoor units should not be installed in locaons where exposure to salinity may occur.
▪ Outdoor units should be installed in well-drained, well-venlated posions.
▪ Outdoor units should be installed in locaons where the noise from the unit will not disturb neighbors.
2.3.2 Strong Wind Installaon
Wind of 5m/s or more blowing against an outdoor unit’s air outlet blocks
the ow of air through the unit, leading to deterioraon in unit capacity,
accelerated frost accumulaon when in heang mode or domesc hot
water mode, and potenal disrupon to operaon due to increased
pressure in the refrigerant circuit. Exposure to very strong wind can also
cause the fan to rotate excessively fast, potenally leading to damage to
the fan. In locaons where exposure to high winds may occur should take
account of the following consideraons:
▪ For installaon of the outdoor unit in a place where the wind direcon
can be foreseen. Set the outlet side at a right angle to the direcon of
the wind, refer to Figure 3-2.1.
▪ If turn the air outlet side toward the building’s wall, fence or screen.
Make sure there is enough room to do the installaon
2.3.3 Cold Climate Installaon
In cold climate locaons installaon should take account of the following consideraons:
▪ Never install the unit at a site where the sucon side may be exposed directly to wind.
▪ To prevent exposure to wind, install a bae plate on the air discharge side of the unit.
▪ To prevent exposure to wind, install the unit with its sucon side facing the wall.
▪ In areas of heavy snowfall, a canopy should be installed to prevent snow entering the unit.
Addionally, the height of the base structure should be increased so as to raise the unit further o
the ground. Refer to Figure 3-2.2.
2.3.4 Hot Climate Installaon
As the outdoor temperature is measured via the outdoor unit air thermistor, make sure to install the
outdoor unit in the shade or a canopy should be constructed to avoid direct sunlight, so that it is not
inuenced by the sun’s heat, otherwise protecon may be possible to the unit.
2.3.5 Base Structure
Outdoor unit base structure design should take account of the following consideraons:
▪ A solid base prevents excess vibraon and noise. Outdoor unit bases should be constructed on solid ground or on structures
of sucient strength to support the unit’s weight.
▪ Bases should be at least 100mm high to provide sucient drainage and to prevent water ingress into the base of the unit.
▪ Either steel or concrete bases may be suitable.
▪ Outdoor units should not be installed on supporng structures that could be damaged by water build-in in the event of a
blocked drain.
Figure 3-2.1: Strong wind installaon direcon
Figure 3-2.2: Snow shielding
Strong wind
Blown air
Blown air
Strong wind