Hitachi RAS-FSNM Serie Manual De Instrucciones página 19

UNITS INSTALLATION
4 Multi-row and multiple installations
Installation space
L
Keep a distance of more than 100 mm between other units and
do not put obstacles on the right and left sides. Dimension B is
as shown below.
L A
0 < L < 1/2H 600 or more
1/2H < L < H 1400 or more
1 Using wind guard
2 A wall to guard against wind
Wall
Secure the
adequate
service space
?
N O T E
If the unit is installed on the roof or the place forced directly against strong
wind such as storm, fix the unit securely with wire ropes as shown in the
figure.
9 PMML0390B REV.0 - 11/2015 - P5416649
(mm)
L
B
300 or more
350 or more
Wind guard
set (optional)
Strong wind
Air intake side
(Face the air discharge
side to the wall)
Direction of
strong wind
?
N O T E
• If L is larger than H, mount the units on a base so that H is greater
or equal to L.
• In this situation ensure that the base is closed and does not allow the
airflow to short circuit.
• Do not install the outdoor unit where dust or other contamination
could block the outdoor heat exchanger.
• Install the outdoor unit in a space with limited access to general
public.
• Do not install the outdoor unit in a space where a seasonal wind
directly blows to the outdoor heat exchanger or a wind from a building
space directly blows to the outdoor fan.
• In case of installation in the open spaces unavoidably where there is
no buildings or surrounding structures, adopt the wind guard set or
install near the wall to avoid facing the wind directly. Ensure that the
service space should be secured.
3 If the unit is installed on the roof or the place forced directly
against strong wind such as storm, fix the unit securely with
wire ropes as shown in the figure.
Wire rope
Snow protection Hood (Option)
!
C A U T I O N
Aluminium fins have very sharp edges. Pay attention to the fins to avoid
any injury.
?
N O T E
Install the outdoor unit on a roof or in an area where people except service
engineers can not touch the outdoor unit.
Direction of strong wind
Direction of air discharge
Wire rope