Initial Check - Hitachi RPC-2.0FSR Installation & Maintenance Manual

4.2 Initial Check
● Check to ensure that the number of below
3
is within 0.3kg/m . Otherwise it may cause
danger situation if the refrigerant in the
Outdoor Unit leaks into the room where this
Indoor Unit is installed.
(Total Refrigerant Quantity per one Outdoor Unit)
Volume of the room where this
(
Indoor Unit is installed.
In detail, refer to the Installation Manual for
outdoor unit.
● Make sure that a refrigerant leak test has
been performed. Refrigerant (Fluorocarbon
or Difluoromethane) for this unit is non-
toxic, and odorless. If the refrigerant should
somehow escape and come into contact with
flame, toxic gas will form. This gas is heavier
than air and will settle near floor areas and
spread where it can cause suffocation to
those nearby. In addition, difluoromethane is
flammable and can cause fire.
• Install the indoor unit with a proper clearance
around it for operation and maintenance working
space, as shown in Fig. 4.1.
• Do not install flammable parts in the service
space for the indoor unit.
• Install the indoor unit higher than 2.4 meters
from the floor level.
Min. 40
Minimum service space to
tighten the suspension bolt
Min. 40
NOTE:
If there is a cornice on the ceiling, measure the dimension from the front or undersurface.
10
≤
0.3kg/m 3
)
Min.
300
Minimum service space
for auto louver motor
< For Single Installation >
Min.
300
< For Parallel Installation >
Fig. 4.1 Space around Indoor Unit
• Consider the air distribution from the indoor unit
to the space of the room, and select a suitable
location so that uniform air temperature in the
room can be obtained.
• Avoid obstacles such as electric light, partition
which may hamper the air inlet or the air outlet
flow.
• Check to ensure that the ceiling has a sufficient
strength to hang the indoor unit.
• Do not install the indoor unit in a machinery shop
or kitchen where vapor from oil or its mist flows
to the indoor unit.
An oil will deposit on the heat exchanger,
thereby reducing the indoor unit performance
and the plastic parts may deform, and in the
worst case, break due to splash oil at operation.
• Avoid the installation place where the indoor unit
may contact high humidity.
• The warmed air may stay at the high ceiling
space during the heating operation. Thus, the
parallel installing of a circulator is recommended.
• The indoor unit can be installed up to 3.5 meters
(for 1.5 to 3HP) and 4.3 meters (for 4 to 6HP)
from the floor level.
• Avoid installing the air conditioning where the
direct airflow blows from the air outlet to the
temperature detecting devices such an alarm
device or a control device. It may cause a failure
of an alarm device or a control device.
Min.
Min. 400
500
Min.
2500
(mm)
Min. 8
Floor Level
(mm)
Min.
300
A10762300A-rev.1