Hitachi RAF-35RPA RAF35RPA User Manual
Product codes
RAF35RPA
10-17
10.1.4 INSTALLATION OF 4 WAY CEILING
CASSETTE TYPE INDOOR
Please read the safety precautions carefully before
operating the unit. The contents of this section are vital to
ensure safety. Please pay special attention to the following
signs.
ensure safety. Please pay special attention to the following
signs.
WARNING Incorrect methods of installation may
cause death or serious injury
CAUTION Improper installation may result in
serious consequences.
Make sure to connect earth wire
This sign indicates prohibition
Be sure that the unit operates in proper condition after
installation. Explain to customer the proper way of operating
the unit as described in the user’s guide.
installation. Explain to customer the proper way of operating
the unit as described in the user’s guide.
WARNING
•
Please request your sales agent or qualified
technician to install your unit. Water leakage, short
circuit of fire may occur if you do the installation
work yourself.
technician to install your unit. Water leakage, short
circuit of fire may occur if you do the installation
work yourself.
•
Please observe the instructions stated in the
installation manual during the process of installation.
Improper installation may cause water leakage,
electric shock and fire.
installation manual during the process of installation.
Improper installation may cause water leakage,
electric shock and fire.
•
Make sure that the units are mounted at locations
which are able to provide full support of the weight of
the units. If not, the units may collapse and impose
danger.
which are able to provide full support of the weight of
the units. If not, the units may collapse and impose
danger.
•
Observe the rules and regulations of the electrical
installation and the methods described in the
installation manual when dealing with the electrical
work. Use power cables approved by the authorities
of your country.
installation and the methods described in the
installation manual when dealing with the electrical
work. Use power cables approved by the authorities
of your country.
•
Be sure to use the specified wire for connecting the
indoor and outdoor units. Please ensure that the
connections are tight after the conductors of the wire
are inserted into the terminals. Improper insertion
and loose contact may cause over-heating and fire.
indoor and outdoor units. Please ensure that the
connections are tight after the conductors of the wire
are inserted into the terminals. Improper insertion
and loose contact may cause over-heating and fire.
•
Please use the specified piping set for the correct
refrigerant gas. Otherwise, this may result in broken
copper pipes or faults
refrigerant gas. Otherwise, this may result in broken
copper pipes or faults
•
When installing or removing an air conditioner, don
not allow air or moisture to remain in the
refrigeration cycle. Otherwise, pressure in the
refrigeration cycle may become abnormally high
may cause a rupture.
not allow air or moisture to remain in the
refrigeration cycle. Otherwise, pressure in the
refrigeration cycle may become abnormally high
may cause a rupture.
•
Be sure to ventilate fully in case refrigerant gas
leaks while at work. If the refrigerant gas comes into
leaks while at work. If the refrigerant gas comes into
contact with fire, poisonous gas might be
discharged.
discharged.
•
After completion of installation work, check to make
sure that there is no refrigeration gas leakage. If the
refrigerant gas leaks into the room, coming into
contact with fire in a fan-driver heater, space heater,
etc; poisonous gas may be emitted.
sure that there is no refrigeration gas leakage. If the
refrigerant gas leaks into the room, coming into
contact with fire in a fan-driver heater, space heater,
etc; poisonous gas may be emitted.
•
Unauthorized modifications to the air conditioner
may be dangerous. If a breakdown occurs, please
contact a qualified air conditioner technical or
electrician. Improper repairs may result in water
leakage, electric shock and fire.
may be dangerous. If a breakdown occurs, please
contact a qualified air conditioner technical or
electrician. Improper repairs may result in water
leakage, electric shock and fire.
•
Be sure to connect the earth wire from power
supply wire to the outdoor unit and between the
outdoor and indoor unit. Improper grounding may
cause electric shock.
supply wire to the outdoor unit and between the
outdoor and indoor unit. Improper grounding may
cause electric shock.
CAUTION
•
A circuit breaker or fuse must be installed. Without a
circuit breaker or fuse, the danger of electric shock
exists. A main switch with a contact gap of more
than 3.5mm has to be installed in the power supply
line to the outdoor unit.
circuit breaker or fuse, the danger of electric shock
exists. A main switch with a contact gap of more
than 3.5mm has to be installed in the power supply
line to the outdoor unit.
•
Do not install the unit near a location where there is
a flammable gas. The indoor unit may catch fire if
flammable gas leaks around it.
a flammable gas. The indoor unit may catch fire if
flammable gas leaks around it.
•
Be sure to tighten the flare nut to the specified
torque using a toque wrench. If the flare nut is
tightened excessively, it may crack as time elapses,
causing the refrigerant leakage.
torque using a toque wrench. If the flare nut is
tightened excessively, it may crack as time elapses,
causing the refrigerant leakage.
•
Please ensure smooth flow of water when installing
the drain hose.
the drain hose.
•
Piping shall be suitable supported with a maximum
spacing of 1m between supports
spacing of 1m between supports
•
An IEC approved power cord should be used. Power
cord type: NYM.
cord type: NYM.
The choice of mounting site
WARNING
•
The unit should be mounted at stable, non-vibratory
location which can provide full support to the unit.
location which can provide full support to the unit.
CAUTION
•
No nearby heat source and no obstruction near the
air outlet is allowed.
air outlet is allowed.
•
The clearance distances from top right and left are
specified in figure below.
specified in figure below.
•
The location must be convenient for water drainage
and pipe connection with the Outdoor unit.
and pipe connection with the Outdoor unit.
•
To avoid interference from noise, please place the
unit and its remote controller at least 1m from the
radio, television and inverter type fluorescent lamp.
unit and its remote controller at least 1m from the
radio, television and inverter type fluorescent lamp.
•
To avoid any error in signal transmission form the
remote controller, please put the controller far away
from high-frequency machines and high-power
wireless systems.
remote controller, please put the controller far away
from high-frequency machines and high-power
wireless systems.
•
The installation height of indoor unit must be 2.3m or
more.
more.
(Unit:mm)