Hitachi air core 600 Installation & Maintenance Manual page 16

• Appliance shall be installed, operated and stored in a room with a floor area larger than X (X see below).
• The installation of pipe-work shall be kept to a room with a floor area larger than X (X see below).
• The pipe-work shall be complianced with national gas regulations.
• When moving or relocating the air conditioner, consult experienced service technicians for disconnection and
reinstallation of the unit.
• Do not place any other electrical products or household belongings under indoor unit or outdoor unit.
Condensation dripping from the unit might get them wet, and may cause damage or malfunction of your property.
• Do not use means to accelerate the defrosting process or to clean, other than those recommended by the
manufacturer.
• The appliance shall be stored in a room without continuously operating ignition sources (for example:
open flames, an operating gas appliance or an operating electric heater).
• Do not pierce or burn.
• Be aware that refrigerants may not contain an odor.
• To keep ventilation openings clear of obstruction.
• The appliance shall be stored in a well-ventilated area where the room size meets requirements as specified for
operation.
• The appliance shall be stored in a room without continuously operating open flames (for example an operating
gas appliance) and ignition sources (for example an operating electric heater).
• Any person involved with a refrigerant circuit should hold a valid certificate from an industry-accredited
assessment authority, which authorizes their competence to handle refrigerants safely in accordance with
required specification.
• Service shall only be performed as recommended by the equipment manufacturer.
• Maintenance and repair requiring the assistance of other skilled personnel shall be carried out under the
supervision of the person competent in the use of flammable refrigerants.
• The appliance shall be installed and stored so as to prevent mechanical damage.
• Mechanical connectors used indoors shall comply with ISO 14903. When mechanical connectors are reused
indoors, sealing parts shall be renewed. When flared joints are reused indoors, the flare part shall be
re-fabricated.
• The installation of pipe-work shall be kept to a minimum.
• Mechanical connections shall be accessible for maintenance purposes.
Model
18K
25K
30K
36K
42K/48K/55K
Explanation of symbols displayed on the indoor unit or outdoor unit.
WARNING
CAUTION
CAUTION
CAUTION
WARNING
Required minimum room area X (m )
Installation height (m)
0.6 1.0
10.38 3.74
49.05 17.65
53.24 19.15
76.71 27.61
114.5 41.2
This symbol shows that this appliance uses a flammable refrigerant.
If the refrigerant is leaked and exposed to an external ignition source,
there is a risk of fire.
This symbol shows that the operation manual should be read
carefully.
This symbol shows that a service personnel should handle this
equipment with reference to the installation manual.
This symbol shows that information is available such as the operating
manual or installation manual.
14
2
1.8 2.2
1.15 0.77
5.45 3.65
5.92 3.97
8.52 5.71
12.7 8.5
Safety Precautions