User`s manual

English 2
• Never press the button of the remote controller with a
hard, pointed object.
The remote controller may be damaged.
• Do not let any kind of sprays get on the remote control-
ler (insecticides, cleaning materials, etc.)
This may cause breakage, deformation, or malfunction.
• Do not wipe the controller operation panel with benzine,
thinner, chemical dustcloth, etc.
The panel may get discolored or the coating peeled off. If it
is heavily dirty, soak a cloth in water-diluted neutral deter-
gent, squeeze it well and wipe the panel clean. And wipe it
with another dry cloth.
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.
The water pipes, humidifier element, solenoid valves, and
other components may freeze, causing breakage 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 the unit is electrically earthed.
In order to avoid electric shock, make sure that the unit is
grounded and that the earth wire is not connected to gas or
water pipe, lightning conductor or telephone earth wire.
Install a wiring interrupter or ground-fault circuit interrupter
for the power wiring.
• 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 move or attempt to re-install the remote control-
ler yourself.
Incorrect installation, may cause electric shock or fire. Con-
tact your dealer to have such work done.
• 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.
CAUTION (For installation)
• Do not use the HRV unit or an air suction/discharge
grille in the following places.
1. 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.
2. Place such as bathroom subjected to moisture.
Electric leak or electric shock and other failure can be caused.
3. Place such as kitchens or other places where oil
fumes are present.
This may cause fire.
4. Place subjected to much carbon black.
Carbon black attaches to air filter and heat exchange ele-
ment, marking them unable to use.
5. 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.
• Is a show protection measure taken?
For detail, consult your dealer.
• In order to avoid electric shock or fire, make sure that
an earth leakage breaker is installed.
No installation may cause electrical shock and fire.
• Make sure the temperature and the humidity of the installa-
tion 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 fires or
short circuits.
• 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.
• Use electric insulation between the duct and the wall
when using metal ducts to pass metal or wire laths or
metal plating into wooden buildings.
This may cause electric shock, short circuits, or fire.
• Arrange the drain hose to ensure smooth drainage.
Incomplete drainage may cause wetting of the building, fur-
niture etc.
• Do not install the remote controller in locations where
the temperature exceeds the range between 0°C and
35°C and the humidity exceeds the range between RH
40% and 80%.
Electrocution or breakdown may occur.
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