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• All wiring must be performed by an authorized electrician.
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.
• 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.
• 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 establish an earth.
Do not earth the unit to a utility pipe, arrester, or telephone
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.
• 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.
f. Near machinery emitting electromagnetic waves.
Electromagnetic waves may disturb the operation of the
control system and result in a malfunction of the equipment.
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 fires or
short circuits.
English
• 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.
• Avoid placing the controller in a spot splashed with water.
Water coming inside the controller may cause an electric
leak or may damage the internal electronic parts.
• Never pull or twist the electric wire of a remote controller.
It may cause the unit to malfunction.
(For moving and reinstalling/
WARNING
repairing)
• Do not modify the unit.
This may cause electric shock or fire.
• Ask your dealer to move and reinstall the unit.
Incomplete installation may result in electric shock, and fire.
• Do not disassemble or repair the unit yourself.
This may cause electric shock or fire.
Contact your dealer to have such work done.
• When removing the unit, be sure not to tip it.
The water inside the unit may drip or leak out, and get on
furniture, etc.
• 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.
2.
WHAT TO DO BEFORE OPERATION
This operation manual is for the following systems with standard
control. Before initiating operation, contact your Daikin dealer for
the operation that corresponds to your system type and mark.
If your installation has a customized control system, ask your
dealer for the operation that corresponds to your system.
2-1
NAMES OF PARTS (Refer to figure 1)
(1) Hanger bracket
(2) Duct connecting flange
(3) Exhaust fan
(4) Air filter (Long life filter)
(5) Damper
(6) Electric parts box
(7) Maintenance cover
(8) Heat exchanger elements
(9) Name plate
(10)Air supply fan
(11)Remote controller (Optional accessory)
(12)Damper motor
(13)EA Exhaust air to outdoors
(14)OA Fresh air from outdoors
(15)Maintenance space for the air filters, the heat exchange
elements and control box.
(16)RA Return air from room
(17)SA Supply air to room
2
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