Hitachi RAC-VJ50PHAT Installation Manual

INSTALLATION
MANUAL ● Flare nut must use a torque wrench without fail. Tighten with the specifi ed tightening torque.
If the fl are nut is tightened too much, after a long period of time, the fl are nut breaks, Gas
leakage, stagnation, touching fi re, rarely cause ignition.
Sharp bending of the pipe use the polyethylene rod, bend not crushed the pipe. Gas leakage
●
from the crushed part, stagnation, touching fi re, rarely cause ignition.
Home
Please request your sales agent or qualifi ed technician to install your unit. Water leakage,
●
short circuit or fi re 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 fi re.
● A brazed, welded, or mechanical connection shall be made before opening the valves to
permit refrigerant to fl ow between the refrigerating system parts. A vacuum valve shall be
provided to evacuate the interconnecting pipe and/or any uncharged refrigerating system
SPLIT UNIT AIR CONDITIONER
part.
● Mechanical connectors used indoors shall comply with ISO 14903. When mechanical connectors
OUTDOOR UNIT
are reused indoors, sealing parts shall be renewed. When fl ared joints are reused indoors,
RAC-VJ50PHAT
the fl are part shall be re-fabricated.
RAC-VJ60PHAT
● Refrigerant tubing shall be protected or enclosed to avoid damage.
● Make sure that the units are mounted at locations which are able to provide full support to
EN INSTRUCTION MANUAL
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
FOR SERVICE
the installation manual when dealing with the electrical work. Use power cables approved
by the authorities of your country.
PERSONNEL ONLY
Be sure to use the specifi ed 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 fi re.
● Please use the specifi ed components for installation work. Otherwise, the units may collapse
●
Carefully read through the procedures of
or water leakage, electric shock and fi re may occur.
proper installation before starting installation
work.
● Be sure to use the specifi ed piping set for R32. Otherwise, this may result in broken copper
● The sales agent should inform customers
pipes or faults.
regarding the correct operation of installation.
● When installing or removing an air conditioner, only specifi ed refrigerant (R32) 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.
Tools Needed For Installation Work
● Be sure to ventilate fully if a refrigerant gas leak while at work. If the refrigerant gas comes
( mark is tool exclusive use for R32)
into contact with fi re, a poisonous gas may occur. Be aware that refrigerants may not contain
● + – Screwdriver ● Measuring Tape
an odour.
● Knife ● Saw ● Pipe Cutter
● Hexagonal Wrench Key ( 4mm) ● 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 fi re in the fan-
● Power Drill (ø 65mm ~ ø 80mm)
Vacuum Pump ● Pliers or Wrench driven heater, space heater, etc., a poisonous gas may occur.
● Torque Wrench Vacuum Pump Adaptor
● Unauthorized modifi cations to the air conditioner may be dangerous. If a breakdown occurs
● Flare Tool ● Gas Leakage Detector
please call a qualifi ed air conditioner technician or electrician. Improper repairs may result
Manifold Valve Charge Hose
in water leakage, electric shock and fi re, etc.
● Reamer ● File
Refrigerant pipe size (outer diameter): Narrow pipe, Liquid (ø6.35mm); Wide pipe, Gas (ø12.70mm/ø15.88mm)
SAFETY PRECAUTION
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 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.
<IA2384: A >
Table 1: Minimum Floor area of the room A
WARNING
This symbol shows that this
Outdoor
equipment uses a fl ammable
Model
refrigerant.
If the refrigerant is leaked,
together with an external
RAC-VJ50PHAT
ignition source, there is a
RAC-VJ60PHAT
possibility of ignition.
CAUTION
This symbol shows that the
Operation Instructions should
be read carefully.
CAUTION
This symbol shows that a
service personnel should be
Be sure to
handling this equipment with
completely
reference to the Installation seal any gap
Manual. with putty.
CAUTION
This symbol shows that there
is information included in
the Operation Manual and/or
Installation Manual
! WARNING
BURST HAZARD
Refrigerant piping
Do not allow air, etc. to get
must be protected
into refrigerant cycle (piping)
from physical
damage. Install a
RISK OF EXPLOSION
plastic cover or
Compressor must be stopped
equivalent.
before removing refrigerant
pipes.
All service valve must be fully
closed after pumping down
operation.
above 200mm
above 100mm
above 700mm
Figure 1
>
< IA2384: A
WARNING
!
(m 2 )
min
Minimum Floor area of the room
Max Piping Max refrigerant
A (m
min
Length
charge amount
(m)
(g) RAK-VJ50PHAT
RAK-VJ60PHAT
30 1500 2.13
WARNING
!
above 100mm
Flare connection only at outside
of building
The indoor piping should
be insulated with the
enclosed insulation
pipe. (If the insulator is
insuffi cient, please use
commercial products).
The difference in height
●
between the indoor and
outdoor unit should be
kept max 20m.
The connecting pipe,
●
no matter big or small,
should all be insulated
with insulation pipe and
then wrapped with vinyl
above 100mm
tape. (The insulator will
deteriorate if it is not
give
wrapped with tape).
clearance
as wide as
possible
The connection of insulated
drain hose.
inner diameter ø 16mm
Please use insulated drain
hose for the indoor piping
(commercial product).
above 200mm
A circuit breaker or fuse must be installed. Without a circuit breaker or fuse the danger of electric shock exists.
●
The external switch shall be incorporated to completely disconnect from power supply. It should disconnect all
poles, and a contact separation of at least 3mm must be present.
Do not install the unit near a location where there is fl ammable gas. The outdoor unit may catch
●
fi re if fl ammable gas leaks around it.
Do not install the indoor unit in a machine shop or kitchen where vapor from oil or its mist fl ows to the indoor
●
unit. The oil will deposit on the heat exchanger, thereby reducing the indoor unit performance and may deform
and in the worst case, break the plastic parts of the indoor unit.
Please ensure smooth fl ow of water when installing the drain hose.
●
Piping shall be suitable supported with a maximum spacing of 1m between the supports.
●
Do not use means to accelerate the defrosting process or to clean, other than those recommended by the
●
manufacturer. Any unfi t method or using incompatible material may cause product damage, burst and serious
injury.
The appliance/pipe-work shall be stored in a well ventilated room with indoor fl oor area larger than A
●
to Table 1] and without any continuously operating ignition source. Keep away from open fl ames, any operating
gas appliances or any operating electric heater. Else, it may explode and cause injury or death.
The appliance/pipe-work shall be installed, and/or operated in a room with fl oor area larger than A
●
Table 1] and keep away from ignition sources, such as heat/spark/open fl ame or hazardous areas such as gas
appliances, gas cooking, reticulated gas supply systems or electric cooking appliances, etc.
Do not pierce or burn as the appliance/pipe-work is pressurized. Do not expose the appliance/pipe-work to heat,
●
fl ame, sparks, or other sources of ignition. Else, it may explode and cause injury or death.
The Choice of Mounting Site
The Outdoor unit must be mounted at a location which
●
can support heavy weight. Otherwise, noise and vibration
will increase.
Do not expose the unit under direct sunshine or
●
rain. Besides, ventilation must be good and clear of
obstruction.
The air blown out of the unit should not point directly
●
to animals or plants.
The clearances of the unit from top, left, right and front
●
are specifi ed in Figure 1. At least 3 of the above sides
must be open air.
Be sure that the hot air blown out of the unit and noise
●
do not disturb the neighbourhood.
Do not install at a location where there is fl ammable
●
gas, steam, oil and smoke.
The location must be convenient for water drainage.
●
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.
Do not install outdoor unit facing strong wind direction.
●
It may damage the fan motor.
Do not install the outdoor unit in a place where small
●
animals may build their nests. If small animal goes
inside the unit and touches the electrical parts, failure
of the unit, smoke or fi re may be caused. Request your
customer to keep the surrounding of the unit is clean.
Please mount the Outdoor unit on stable ground to prevent vibration and increase of noise level.
●
Decide the location for piping after sorting out the different types of pipe available.
●
When removing side cover, please pull the handle after undoing the hook by pulling it downward.
●
2 )
CONDENSED WATER DISPOSAL OF OUTDOOR UNIT
● There are holes on the base of Outdoor unit for condensed water to exhaust.
In order to fl ow condensed water to the drain, the unit is installed on a stand or a block so that the unit is
●
100mm above the ground as shown fi gure. Join the drain pipe to one hole.
At fi rst insert one portion of the hook to the base (Portion A), then pull the drain pipe in the direction shown
●
by the arrow while inserting the hook into the base. After installation, check whether the drain pipe cling to
the base fi rmly.
When Using and Installing In Cold Areas
When the air conditioner is used in low temperature and in snowy conditions, water from the heat exchanger
may freeze on the base surface to cause poor drainage. When using the air conditioner in such areas, do
not install the bushings. Keep a minimum of 250mm between the drain hole and the ground. When using
the drain pipe, consult your sales agent.
For more details, refer to the installation Manual for Cold Areas.
WARNING
To fulfi ll our obligations towards Article 33, in accordance to European REACH Regulation No 1907/2006 EC, we
hereby inform you that this article contains the following Substances of Very High Concern mentioned on the
Candidate list:
Lead
●
CAUTION
!
WARNING
!
(Please note the following matters and obtain permission from customer before installation).
Names of Outdoor Components
! WARNING
No.
1
2
! CAUTION
3
Dimension of Mounting Stand of the Outdoor unit
(unit : mm)
Figure showing the Installation of Outdoor Unit.
Please face this side (suction side)
of the unit to the wall.
Please remove side cover
when connecting the piping and
connecting cord.
Pull downward
A
BASE
DRAIN PIPE
BUSH
[refer
min
[refer to
min
Item Qty
Bush 3
1
Drain Pipe
1
Bush
mounting stand
CAUTION
!
This unit is chargeless up 30m pipe length.
●
Installation of pipe length less than minimum
●
pipe length requirement (3 meters) may
generate an abnormal sound.
BUSH
DRAIN PIPE