Guidelines When Installing The Ducting - Daikin FDXM25F3V1B Installer's Reference Manual

6 Installation
e f
d
500
620
Class A (mm)
FDXM25+35 740
FDXM50+60 1140
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
d
e
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.
b
4 Reattach the removed suction cover.
Installer reference guide
10
4×
a1
b
c
b
a2
f
B (mm)
790
1190
a
c
b
c
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
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.
6.2.3

Guidelines when installing the ducting

The ducting is to be field supplied.
▪ Air inlet side. Attach the duct and intake-side flange (field
supply). For connecting the flange, use 7 accessory screws.
a b c
d e
a Connection screw (accessory)
b Flange (field supply)
c Main unit
d Insulation (field supply)
e Aluminium tape (field supply)
▪ Filter. Be sure to attach an air filter inside the air passage on the
intake side. Use an air filter with dust collecting efficiency ≥50%
(gravimetric method). The included filter is not used when the
intake duct is attached.
▪ Air outlet side. Connect the duct according to the inside
dimension of the outlet-side flange.
a
bottom suction
2
1
b a
e d
FDXM25~60F3V1B
Split system air conditioners
4P482333-1 – 2017.03