Hitachi RAS-8-FSNM - Page 19

ENGLISH
4 Multi-row and multiple installations
(mm)
Installation space
L
L
A
B
Min. 600
Min. 3000
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 B
0 < L < 1/2H 600 or more 300 or more
1/2H < L < H 1400 or more 350 or more
? NOTE
• 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
airow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.
Direction of strong wind
Direction of air discharge
• 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.
1 Using wind guard
Wind guard
set (optional)
Strong wind
2 A wall to guard against wind
Wall
Secure the
adequate
service space
Direction of
strong wind
Air intake side
(Face the air discharge
side to the wall)
? NOTE
Iftheunitisinstalledontheroofortheplaceforceddirectlyagainststrong
windsuchasstorm,xtheunitsecurelywithwireropesasshowninthe
gure.
3 If the unit is installed on the roof or the place forced directly
against strong wind such as storm, x the unit securely with
wire ropes as shown in the gure.
Wire rope
Wire rope
Snow protection Hood (Option)
! CAUTION
Aluminiumnshaveverysharpedges.Payattentiontothenstoavoid
anyinjury.
? NOTE
Installtheoutdoorunitonarooforinanareawherepeopleexceptservice
engineerscannottouchtheoutdoorunit.
UNITS INSTALLATION
PMML0390B REV.0 - 11/2015 - P5416649
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