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• Do not place objects in direct proximity of the outdoor
unit and do not let leaves and other debris accumulate
around the unit.
Leaves are a hotbed for small animals which can enter the
unit. Once in the unit, such animals can cause malfunctions,
smoke or fire when making contact with electrical parts.
• Watch your steps at the time of air filter cleaning or
inspection.
High-place work is required, to which utmost attention must
be paid.
If the scaffold is unstable, you may fall or topple down, thus
causing injury.
WARNING (For installation)
• Do not attempt to install the unit yourself.
Ask your dealer for installation of the unit.
Incomplete installation performed by yourself may result in a
water leakage, electric shock, and fire.
• Installation should be done following the installation
manual.
Incorrect installation may cause leaking, electric shock, or
fire. Injuries may result if the unit falls.
• Do not install the unit in locations where the tempera-
ture in the areas around the unit or indoor intake and
outlet grills may fall below freezing.
<VKM-GAMV1 series only>
The water of the water pipes, humidifier element, solenoid
valves, and other components may freeze, causing break-
age and leaks.
• Do not allow exhaust air to enter the outside air intake
vent.
This may cause the interior of the room to become contami-
nated and harming the health.
• Locate the outside air intake vent so that it does not
take in exhaust air which contains combustion air, etc.
Incorrect installation may cause a loss of oxygen in the
room, leading to serious accidents.
• All wiring must be performed by an authorized electri-
cian.
To do wiring, ask your dealer. Never do it yourself.
• Make sure that a separate power supply circuit is pro-
vided for this unit and that all electrical work is carried
out by qualified personnel according to local lows and
regulations.
Insufficient power circuit capacity or incorrect work may
cause electric shock or fires.
• Be sure to establish an earth.
Do not earth the unit to a utility pipe, arrester, or tele-
phone earth.
Incomplete earth may cause electrical shock, or fire.
A high surge current from lightning or other sources may
cause damage to the air conditioner.
• Install the unit on a foundation strong enough to with-
stand the weight of the unit.
A foundation of in sufficient strongth may result in the unit
falling and causing injuries.
• Connect the remote controller to the correct model.
This may cause electric shock or fire.
• Do not connect additional electric wirings.
This may cause fire.
• For refrigerant leakage, consult your dealer.
When the HRV unit is to be installed in a small room, it is
necessary to take proper measures so that the amount of
any leaked refrigerant does not exceed the limiting concen-
tration even when it leaks. If the refrigerant leaks exceeding
the level of limiting concentration, an oxygen deficiency acci-
dent may happen.
• Do not install the HRV unit at any place where flamma-
ble gas may leak out.
If the gas leaks out and stays around the unit, a fire may
break out.
• Be sure to install an earth leakage breaker.
Failure to install an earth leakage breaker may result in elec-
tric shocks, or fire.
CAUTION (For installation)
• Do not use the HRV unit or an air suction/discharge
grille in the following places.
a. Place subjected to high temperature or direct flame.
Avoid a place where the temperature near the HRV unit
and the air suction/discharge air grille exceeds 40°C. If
the unit is used at high temperature, deformed air filter
and heat exchange element or burned motor result.
b. Place such as kitchens or other places where oil
fumes are present.
This may cause fire.
c. Place such as machinery plant and chemical plant
where gas, which contains noxius gas or corrosive
components of materials such as acid, alkali, organic
solvent and paint, is generated.
Place where combustible gas leakage is likely.
This may cause gas poisoning or fires.
d. Place such as bathroom subjected to moisture.
Electric leak or electric shock and other failure can be caused.
e. Locations below freezing point.
<VKM-GAMV1 series only>
Using the unit at temperatures below 0°C may cause the
drain pan the supply and discharge piping, the humidifying
element, the solenoid valves, and other parts to freeze,
which can cause accidents.
f. Near machinery emitting electromagnetic waves.
Electromagnetic waves may disturb the operation of the
control system and result in a malfunction of the equip-
ment.
g. Place subjected to much carbon black.
Carbon black attaches to air filter and heat exchange ele-
ment, marking them unable to use.
• Is a snow protection measure taken?
For detail, consult your dealer.
• Make sure the temperature and the humidity of the
installation location is within the usage range, not
exceed the limit.
Do not install in cold storage or other locations with low tem-
peratures or near heated pools. This may cause electrical
shock and fire.
• Install the two outdoor ducts with down slope to pre-
vent rainwater from entering the unit.
If this is not done completely, water may enter the building,
damaging furniture, and cause electric shock and fire.
• Insulate the two outdoor ducts to prevent dew conden-
sation (and the indoor duct as well if needed).
If this is not done completely, water may enter the building,
damaging furniture, etc.
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