Hitachi airCore 700 Operation Installation Maintenance Manual page 12

•
If the conventional refrigerant and refrigerator oil are mixed in R32, the refrigerant may deteriorate.
•
For Ducts indoor units, it shall not contain a potential ignition source in the duct system, such as
electrical heating.
•
For Duct indoor units, when connected via an air duct system to one or more rooms, the supply and
return air shall be directly ducted to the space. Open areas such as false ceilings shall not be used as a
return air duct.
•
Duct indoor units that connected via an air duct system to one or more rooms, auxiliary devices which
can be a potential ignition source shall not be installed in the ductwork. Examples of such potential
ignition sources are hot surfaces and electric switching devices.
•
Duct indoor units that connected via an air duct system to one or more rooms are installed in a
room with an area less than A
operating open flames (for example an operating gas appliance) or other potential ignition sources (for
example an operating electric heater, hot surfaces). A flame-producing device may be installed in the
same space if the device is provided with an effective flame arrestor.
•
Appliance shall be installed, operated and stored in a room with a floor area larger than A
- see table below].
•
The installation of pipe-work shall be kept to a room with a floor area larger than A
table below].
•
The unit has requirements on the minimum required room area (A
charging amount (m). The total amount of refrigerant charged in the system corresponds to the room
area installed in the table below. The calculation result is based on the Ducted-mounted unit, and the
installation height is no less than 2.2m.
Minimum required room area for each refrigerant amount charged
•
Upon receiving this product, inspect it for any shipping damage. Claims for damage, either apparent or
concealed, should be filed immediately with the shipping company.
•
Check the model number, electrical characteristics (power supply, voltage and frequency) and
accessories to determine if they are correct.
The standard utilization of the unit shall be explained in these instructions. Therefore, the utilization of
the unit other than those indicated in these instructions is not recommended. Please contact your local
agent, as the occasion arises.
Hitachi's liability shall not cover defects arising from the alteration performed by a customer without
Hitachi's consent in a written form.
2
[A (m ) - see table below], that room shall be without continuously
min min
Ducted-mounted units
(No sensor, each room shall be assessed separately)
Installation Height:2.2m
m(kg) A (m
min
≤1.842 -
1.843 5.458
2.00 5.922
2.20 6.515
2.40 7.107
2.60 7.699
2.80 8.291
3.00 8.884
3.20 9.476
CHECKING PRODUCT RECEIVED
) used with different refrigerant
min
2
) m(kg) A (m
min
3.40 10.068
3.60 10.660
3.80 11.253
4.00 11.845
4.20 12.437
4.40 13.029
4.60 13.622
4.80 14.585
5.00 15.826
-x-
2
(m
min
2
(m ) [A
min min
2
)
2
) [A (m )
min
2
(m ) - see