5 Installation
Installation manual
6
FDXM25~60F3V1B(9)
Split system air conditioners
4P472267-1B – 2018.07
d
e
A
B
f
620
500
f
a1
b
b
a2
c
4×
Class
A (mm)
B (mm)
35
740
790
60
1140
1190
a1
Nut (field supply)
a2
Double nut (field supply)
b
Washer (accessories)
c
Hanger bracket
d
Control box
e
Suspension bolt pitch
f
Overall dimension
▪
External static pressure.
Refer to technical documentation to
ensure that the unit's external static pressure is not exceeded.
▪
Ceiling opening.
(Ceiling with opening for installation)
1
Pass all pipes and wiring through the unit's piping and wiring
holes.
2
Make sure that the ceiling is level.
▪
Installation example:
b
a
c
e
d
a
Anchor bolt
b
Ceiling slab
c
Long nut or turn-buckle
d
Suspension bolt
e
Indoor unit
▪
Install suction cover and air filter (accessory)
In case of
bottom suction:
3
Remove the suction cover.
c
a
b
4
Reattach the removed suction cover.
c
b
a
a
Air inlet
b
Air outlet
c
Suction cover
5
Attach the air filter (accessory) by pushing down the hooks (2
hooks for 25+35 type, 3 hooks for 50+60 type).
rear suction
bottom suction
2
1
2
1
▪
Install the unit temporarily.
6
Attach the hanger bracket to the suspension bolt.
7
Fix the unit securely.
▪
Level
. Make sure the unit is level at all four corners using a level
or a water-filled vinyl tube.
b
a
a
Level
b
Vinyl tube
8
Tighten the upper nut.
NOTICE
Do NOT install the unit tilted.
Possible consequence:
If
the unit is tilted against the direction of the condensate flow
(the drain piping side is raised), the float switch might
malfunction and cause water to drip.
5.1.2
Guidelines when installing the ducting
WARNING
If the one or more rooms are connected with the unit via
duct system make sure:
▪ there are no operating ignition sources (example: open
flames, an operating gas appliance or an operating
electric heater) in case the floor area is less than A
min
specified in the General safety precautions;
▪ no auxiliary devices, which may be a potential ignition
source, are installed in the duct work (example: hot
surfaces with a temperature exceeding 700°C and
electric switching device);
▪ only auxiliary devices approved by manufacturer are
used in the duct work.
WARNING
Do NOT install operating ignition sources (example: open
flames, an operating gas appliance or an operating electric
heater) in the duct work.
