4 Installation
Installation and operation manual
5
FXFQ20~125BVEB
VRV system air conditioner
4P540926-1B – 2019.01
4
Installation
4.1
Mounting the indoor unit
4.1.1
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.
▪
In case of installation with a fresh air intake kit
. Install the
fresh air intake kit always
before
installing the unit.
▪
Decoration panel
. Install the decoration panel always
after
installing the unit.
▪
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.
A
c
b
d
e
a
A
50~100 mm
: In case of installation with standard panel
100~150 mm
: In case of installation with fresh air intake kit
or design panel
130~180 mm
: In case of installation with self-cleaning
decoration panel
a
Ceiling slab
b
Anchor
c
Long nut or turnbuckle
d
Suspension bolt
e
Suspended ceiling
▪
Suspension bolts.
Use M8~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.
(mm)
780
710
a1
b
b
a2
c
4×
a1
Nut (field supply)
a2
Double nut (field supply)
b
Washer (accessories)
c
Hanger bracket (attached to the unit)
▪
Paper pattern for installation
(upper part of the packing). Use
the paper pattern to determine the correct horizontal positioning. It
contains the necessary dimensions and centers. You can attach
the paper pattern to the unit.
a
c
b
d
a
Centre of the unit
b
Centre of the ceiling opening
c
Paper pattern for installation (upper part of the packing)
d
Screws (accessories)
▪
Ceiling opening and unit
:
▪ Make sure the ceiling opening is within the following limits:
Minimum
: 860 mm to be able to fit the unit.
Maximum
: 910 mm to ensure enough overlap between the
decoration panel and the suspended ceiling. If the ceiling
opening is larger, add extra ceiling material.
▪ Make sure the unit and its hanger brackets (suspension) are
centered within the ceiling opening.
(mm)
710
840
860~910
950
c
d
e
f
780
840
860~910
950
c
d e
f
a
b
a
Drain piping
b
Refrigerant piping
c
Hanger bracket pitch (suspension)
d
Unit
e
Ceiling opening
f
Decoration panel
If A
Then
B
C
A
C
B
≥860 mm
10 mm
45 mm
≤910 mm
35 mm
20 mm
A
Ceiling opening
B
Distance between the unit and the ceiling opening
C
Overlap between the decoration panel and the suspended
ceiling
▪
Installation guide
. Use the installation guide to determine the
correct vertical position.
2
1
2
1
2
1
2
1
A
B
1
1
2
C
a b c
2
1
2
D
A
In case of installation with standard decoration panel
B
In case of installation with fresh air intake kit
C
In case of installation with self-cleaning decoration panel
D
In case of installation with design decoration panel
a
Suspended ceiling
b
Installation guide (accessory)
c
Unit
