Hitachi RAC-35N5 Installation Manual

FOR SERVICE PERSONNEL ONLY
SPLIT UNIT AIR CONDITIONER
INSTALLATION MANUAL
RAC-25N5
Outdoor Unit HFC RAC-35N5
R410A
RAC-50N5

SAFETY PRECAUTION

G Read the safety precautions carefully before operating the unit.
G The contents of this section are vital to ensure safety. Please pay special attention to the following sign.
WARNING ........ Incorrect methods of installation may cause death or serious injury.
!
CAUTION ......... Improper installation may result in serious consequence.
!
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.
!
G
Please request your sales agent or qualified technician to install your unit. Water leakage, short circuit or fire may occur if you
do the installation work yourself.
G
Please observe the instructions stated in the installation manual during the process of installation. Improper installation may
cause water leakage, electric shock and fire.
G Make sure that the units are mounted at locations which are able to provide full support to the weight of the units. If not, the
units may collapse and impose danger.
G
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.
G 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.
G
Please use the specified components for installation work. Otherwise, the units may collapse or water leakage, electric shock
and fire may occur.
G Be sure to use the specified piping set for R-410A. Otherwise, this may result in broken copper pipes or faults.
G
When installing or removing an air conditioner, only specified refrigerant (R410A) shall be allowed, do not allow air or moisture
to remain in the refrigeration cycle. Otherwise, pressure in the refrigeration cycle may become abnormally high so that a rupture
may be caused.
G Be sure to ventilate fully if a refrigerant gas leak while at work. If the refrigerant gas comes into contact with fire, a poisonous
gas may occur.
G
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 the fan-driven heater, space heater, etc., a poisonous gas may occur.
G
Unauthorized modifications to the air conditioner may be dangerous. If a breakdown occurs please call a qualified air conditioner
technician or electrician. Improper repairs may result in water leakage, electric shock and fire, etc.
G A circuit breaker or fuse (16A time delay) 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 3mm has to be installed in the power supply line to the outdoor unit.
G Do not install the unit near a location where there is flammable gas. The outdoor unit may
catch fire if flammable gas leaks around it.
G
Please ensure smooth flow of water when installing the drain hose.
G Piping shall be suitable supported with a maximum spacing of 1m between the supports.
< >
IA363: A
G Carefully read through the procedures of proper
installation before starting installation work.
G The sales agent should inform customers regarding
the correct operation of installation.
Tools Needed For Installation Work
G + – Screwdriver G Measuring Tape
G Saw G ø 65mm Power Drill G Hexagonal Wrench
Key ( 4mm) G Wrench (14, 17, 22, 26, 27mm)
G Gas Leakage Detector G Pipe Cutter
G Vinyl Tape G Pliers G Flare Tool
WARNING
CAUTION
!
THE CHOICE OF MOUNTING SITE
G
The Outdoor unit must be mounted at a location which can support heavy weight. Otherwise, noise and vibration will increase.
G
Do not expose the unit under direct sunshine or rain. Besides, ventilation must be good and clear of obstruction.
G
The air blown out of the unit should not point directly to animals or plants.
G
The clearances of the unit from top, left, right and front are specified in figure below. At least 3 of the above sides must be open air.
G
Be sure that the hot air blown out of the unit and noise do not disturb the neighbourhood.
G
Do not install at a location where there is flammable gas, steam, oil and smoke.
G Knife G
The location must be convenient for water drainage.
G
Place the Outdoor unit and its connecting cord at least 1m away from the antenna or signal line of television, radio or telephone. This is to
avoid noise interference.
G Putty
Dimension of Mounting Stand
of the Outdoor unit
(unit: mm) (RAC-25N5,
RAC-35N5)
mounting stand
57
12
35
500 124
Dimension of Mounting Stand
of the Outdoor unit
(unit: mm) (RAC-50N5)
mounting stand
57
12
35
508
198
G Please mount the Outdoor unit on stable ground to prevent
vibration and increase of noise level.
G Decide the location for piping after sorting out the different types
of pipe available.
G When removing side cover, please pull the handle after undoing
the hook by pulling it downward.
Please face this side (suction
side) of the unit to the wall.
(Please note the following matters and obtain permission from customer before installation).
WARNING
!
CAUTION
!
Figure showing the Installa-
tion of Outdoor Unit.
above 200mm
)
( above 50mm when
installed on the
above 100mm
ceiling of balcony
give clearance as
wide as possible
above 100mm
above 200mm
above 700mm
Please remove side cover
when connecting the piping
and connecting cord.
Pull downward
G The difference in height
between the indoor and
outdoor unit should be
kept max 10m.
G The connecting pipe, no
matter big or small,
should all be insulated
with insulation pipe and
then wrapped with vinyl
tape. (The insulator will
deteriorate if it is not
wrapped with tape).
The connection of insulated
drain hose.
inner diameter ø 16mm
Please use insulated drain
hose for the indoor piping
(commercial product).