Daikin FXNA20A2VEB Installation And Operation Manual page 14

12 Unit installation
A
≥20
A Wall-mounted type
B Floor-standing type
a Minimum clearance
Top view:
a
≥300 ≥300
a Indoor unit
▪ Install the unit with a prebuilt fully enclosed casing with removable
access panel, suction air grille and discharge grille. These
removable parts shall prevent access to the unit and can ONLY be
removed using a removal tool.
▪ In case of installation under a window sill, make sure that there is
no short-circuit of air.
12.2 Mounting the indoor unit
12.2.1 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.
▪ External static pressure. Refer to technical documentation to
ensure that the unit's external static pressure is not exceeded.
▪ Wall or floor strength. Check whether the wall or the floor is
strong enough to support the weight of the unit. If there is a risk,
reinforce the wall or the floor before installing the unit.
▪ 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.
A B
b
a
d
a
c
A Securing the hanger bracket
B Securing the washers
a Washer (accessory)
b Hanger bracket
c1 Nut (field supply)
c2 Double nut (field supply)
d Washer fixing plate (accessory)
▪ Suspension bolt pitch for fastening to the wall:
Installation and operation manual
14
B
(mm)
Class
20, 25, 32
40, 50
63
▪ Changeover of suction cover and air filter (accessory)
1 In case of front suction, remove the protective grille and the
suction cover from the front side.
A
c
a
b
d
7×
A Removing the suction cover
B Reattaching the suction cover
a Suction cover
b Protective grille
c Air inlet
d Air outlet
2 Remove one leg on the opposite side of the electronic
component box.
3 Reattach the removed suction cover to the bottom side.
4 Attach the protective grille to the front side.
5 Reattach the leg if necessary.
6 Attach the air filter (accessory) by pushing down the hooks (2
hooks for 20, 25, 32 class, 3 hooks for 40, 50, 63 class).
A
a
2
1
b
A Front suction
B Bottom suction
a Main unit
b Filter
A (mm)
740
940
1140
B
c
d
a b
B
FXNA-A
VRV system air conditioner
3P599562-2D – 2024.09