En-4
Drain installation
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CAUTION
Perform drain work in accordance with this Manual, and ensure that the drain
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water is properly drained. If the drain work is not carried out correctly, water may
drip down from the unit, wetting the furniture.
When the outdoor temperature is 0 °C or less, do not use the accessory drain pipe
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and drain cap. If the drain pipe and drain cap are used, the drain water in the pipe
may freeze in extremely cold weather. (Reverse cycle model only)
As the drain water flows out of the outdoor unit during heating operation, install the
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drain pipe and connect it to a commercial 16mm hose. (Reverse cycle model only)
When installing the drain pipe, plug all the holes other than the drain pipe
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mounting hole in the bottom of the outdoor unit with putty so there is no water
leakage. (Reverse cycle model only)
341
305
227
438
50
622
Drain cap mounting hole ×2
(Unit:mm)
Drain pipe mounting
hole ×1
Base
Drain pipe
Drain pipe mounting hole
Installation dimensions
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CAUTION
The installation space shown in the following examples is based on an ambient
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temperature under cooling operation of 35 °C (DB) at the air intake of the
outdoor unit. Provide more space around the air intake than shown in the
examples if the ambient temperature exceeds 35 °C (DB) or if the thermal load
of all of the outdoor units exceeds the capacity.
Consider the transportation route, installation space, maintenance space, and
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access, and install the unit in a location with sufficient space for the refrigerant
piping.
Observe the installation space specifications that are shown in the figures.
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Provide the same space for the air intake at the rear of the outdoor unit.
If the installation is not performed according to the specifications, it could cause
a short circuit and result in a lack of operating performance. As a result, the
outdoor unit might easily be stopped by high-pressure protection.
Air intake
Rear view
Installation methods not shown in the following examples are not recommended.
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Performance may drop significantly.
INSTALLATION WORK
21
Please obtain the approval of the customer when selecting the location of installation
and installing the unit.
Selecting an installation location
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WARNING
Securely install the outdoor unit at a location that can withstand the weight of
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the unit. Otherwise, the outdoor unit may fall and cause injury.
Be sure to install the outdoor unit as prescribed, so that it can withstand
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earthquakes and typhoons or other strong winds. Improper installation can
cause the unit to topple or fall, or other accidents.
Do not install the outdoor unit near the edge of a balcony. Otherwise, children
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may climb onto the outdoor unit and fall off of the balcony.
CAUTION
Do not install the outdoor unit in the following areas:
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Area with high salt content, such as at the seaside. It will deteriorate metal
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parts, causing the parts to fail or the unit to leak water.
Area filled with mineral oil or containing a large amount of splashed oil or
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steam, such as a kitchen. It will deteriorate plastic parts, causing the parts to
fail or the unit to leak water.
Area that generates substances that adversely affect the equipment, such as
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sulfuric gas, chlorine gas, acid, or alkali. It will cause the copper pipes and
brazed joints to corrode, which can cause refrigerant leakage.
Area containing equipment that generates electromagnetic interference. It will
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cause the control system to malfunction, preventing the unit from operating
normally.
Area that can cause combustible gas to leak, contains suspended carbon
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fibers or flammable dust, or volatile inflammables such as paint thinner or
gasoline. If gas leaks and settles around the unit, it can cause a fire.
Area that has heat sources, vapors, or the risk of the leakage of flammable
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gas in the vicinity.
Area where small animals may live. It may cause failure, smoke or fire if small
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animals enter and touch internal electrical parts.
Area where animals may urinate on the unit or ammonia may be generated.
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Please install the outdoor unit without slant.
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Install the outdoor unit in a well-ventilated location away from rain or direct
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sunlight.
If the outdoor unit must be installed in an area within easy reach of the general
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public, install as necessary a protective fence or the like to prevent their access.
Install the outdoor unit in a location that would not inconvenience your
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neighbors, as they could be affected by the airflow coming out from the outlet,
noise, or vibration. If it must be installed in proximity to your neighbors, be sure
to obtain their approval.
If the outdoor unit is installed in a cold region that is affected by snow
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accumulation, snow fall, or freezing, take appropriate measures to protect it
from those elements. To ensure a stable operation, install inlet and outlet ducts.
Install the outdoor unit in a location that is away from exhaust or the vent ports
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that discharge vapor, soot, dust, or debris.
Install the indoor unit, outdoor unit, power supply cable, connection cable, and
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remote control cable at least 1 m away from a television or radio receivers. The
purpose of this is to prevent TV reception interference or radio noise. (Even if
they are installed more than 1 m apart, you could still receive noise under some
signal conditions.)
Branch switch and
circuit breaker
Branch switch and
circuit breaker
1m or more
1 m or more
If children under 10 years old may approach the unit, take preventive measures
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so that they cannot reach the unit.
Keep the length of the piping of the indoor and outdoor units within the allowable
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range.
For maintenance purposes, do not bury the piping.
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