3 About the units and options
Installation manual
5
FDXM25~60F3V1B(9)
Split system air conditioners
4P472267-1B – 2018.07
3
About the units and options
3.1
System layout
b
c
a
e
d
f
g
h
a
Indoor unit
b
Outdoor unit
c
User interface
d
Suction air
e
Discharge air
f
Refrigerant interconnection cable
g
Drain pipe
h
Earth wiring
4
Preparation
4.1
Preparing the installation site
▪ Provide sufficient space around the unit for servicing and air
circulation.
▪ Choose the installation location with sufficient space for carrying
the unit in and out of the site.
WARNING
Do NOT install the air conditioner at any place where
flammable gas may leak out. If the gas leaks out and stays
around the air conditioner, a fire may break out.
4.1.1
Installation site requirements of the
indoor unit
INFORMATION
The sound pressure level is less than 70 dBA.
▪ Use
suspension bolts
for installation.
▪
Spacing
. Mind the following requirements:
200
e:
≥
240
A
≥20
≥300
b
c
d
a
(mm)
≥400
A
Minimum distance to the floor:
2.7 m
to avoid accidental touching.
2.5 m
in case the fan is covered (e.g. false ceiling, grille,
…)
a
Control box
b
Maintenance space
c
Ceiling
d
Floor surface
e
Select the dimension to ensure downward slope of at least
1/100
5
Installation
5.1
Mounting the indoor unit
5.1.1
Guidelines when installing the indoor unit
INFORMATION
Optional equipment.
When installing optional equipment,
also read the installation manual of the optional equipment.
Depending on the field conditions, it might be easier to
install the optional equipment first.
▪
Ceiling strength
. Check whether the ceiling is strong enough to
support the weight of the unit. If there is a risk, reinforce the ceiling
before installing the unit.
▪ For existing ceilings, use anchors.
▪ For new ceilings, use sunken inserts, sunken anchors or other
field supplied parts.
▪
Suspension bolts.
Use W3/8 M10 suspension bolts for
installation. Attach the hanger bracket to the suspension bolt. Fix it
securely using a nut and washer from the upper and lower sides
of the hanger bracket.
▪
Ceiling opening size.
Make sure the ceiling opening is within the
following limits:
